The invention relates to a workpiece-stop arrangement for a crosscut saw or mitre saw with two stops (20) arranged spaced apart from each other, wherein a distance region (80) for the passage of a saw blade (76) is formed between the two stops (20). In order to improve the use capability of a circular saw, it is provided that at least one of the stops (20) has a stop piece (30) with a receptacle (33) to or in which an interchangeable stop piece (40) is exchangeably fastened, wherein the interchangeable stop piece (40) protrudes at least in regions over the stop piece (30) into the distance region (80).
B27B 27/04 - Guide fences or stops for timber in saw mills or sawing machines; Measuring equipment thereon arranged perpendicularly to the plane of the saw blade
B27B 27/08 - Guide fences or stops for timber in saw mills or sawing machines; Measuring equipment thereon arranged adjustably, not limited to only one of the groups
B23D 45/04 - Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade or the stock carried by a pivoted lever
The invention relates to a circular saw, in particular a mitre saw or a mitre pit saw, with a base part (10) which has a carrier (18), wherein a pivoting arm (20) is connected to the carrier (18) pivotably about a pivot axis (22), wherein the pivoting arm (20) supports a saw head (40) which is configured to receive a saw blade (46) on a saw blade holder (45), wherein the saw head (40) is coupled to the pivoting arm (20) pivotably about a mitre axis of a mitre bearing (34), wherein a saw blade protective covering (44) for receiving a region of the saw blade (46) is provided, wherein a dust discharge means is provided which is connected by way of a first dust conducting channel (62) to the saw blade protective covering (44), and wherein the dust discharge means has a second dust conducting channel (70) which extends transversely with respect to the mitre axis through the pivoting arm (20) or past the latter. In order to achieve an effective discharge of the sawdust arising during the saw engagement from the working region of the machine in a circular saw of this type, it is provided according to the invention that a dust collecting device (60) is fastened on that side of the pivoting arm (20) which faces away from the saw head (40), which dust collecting device has a collecting container (66) with a collecting chamber (66.5), for collecting the sawdust which is fed in via the first and the second dust conducting channel (62 and 70).
B23D 59/00 - Accessories specially designed for sawing machines or sawing devices
B23D 45/04 - Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade or the stock carried by a pivoted lever
3.
METHOD FOR OPERATING AN EMERGENCY BRAKE UNIT FOR A MOTOR-DRIVEN TOOL, MONITORING UNIT AND EMERGENCY BRAKE UNIT
A method for operating an emergency brake unit (26) for a motor-driven tool is described. The emergency brake unit (26) comprises an actuator (34) with an actuating element (36), and at least one electrical energy storage unit (52). The actuating element (36) can be selectively acted upon with electrical energy stored in the energy storage unit (52). The method comprises detecting an energy storage unit state parameter (Z1) which characterizes a state of the energy storage unit (52). Alternatively or additionally, an actuating element state parameter (Z2) is detected which characterizes a state of the actuating element (36). If at least one out of the energy storage unit state parameter (Z1) and actuating element state parameter (Z2) lies outside a respectively associated standard range, a blocking signal is triggered. Furthermore, a monitoring unit (50) for monitoring a state of an emergency brake unit (26) and an emergency brake unit (26) are presented.
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B27B 5/38 - Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing
B27G 19/02 - Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
B27G 19/04 - Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws for manually-operated power-driven circular saws
4.
EMERGENCY BRAKING ASSEMBLY FOR A MOTOR-DRIVEN TOOL, AND METHOD FOR OPERATING AN EMERGENCY BRAKING ASSEMBLY
The invention describes an emergency braking assembly (82) for a motor-driven tool. The emergency braking assembly comprises a holding structure (35), a braking element movably mounted on the holding structure (35), in particular a brake cam, and a wire-like actuation element (34), which comprises a shape-memory alloy (36). A first end (34a) of the actuation element (34) is attached to the holding structure (35). A second end (34b) of the actuation element (34) is drivingly coupled to the braking element. The invention further relates to a method for operating an emergency braking assembly (82). The braking element is set in motion by means of the actuation element (34) and then a motion coupling between actuation element (34) and braking element is cancelled or terminated.
B60T 1/00 - Arrangements of braking elements, i.e. of those parts where braking effect occurs
B60T 7/12 - Brake-action initiating means for initiation not subject to will of driver or passenger
B60T 7/14 - Brake-action initiating means for initiation not subject to will of driver or passenger operated upon collapse of driver
B60T 7/22 - Brake-action initiating means for initiation not subject to will of driver or passenger initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle
B60T 8/174 - Using electrical or electronic regulation means to control braking characterised by using special control logic, e.g. fuzzy logic
B60T 13/66 - Electrical control in fluid-pressure brake systems
B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
B60T 17/20 - Safety devices operable by passengers other than the driver
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B27G 19/02 - Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
F16P 3/14 - Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
B27G 19/00 - Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
The invention relates to a portable circular saw (10) comprising a sawblade holder (33) which is designed to secure a sawblade (30) and which can be rotated about a drive axis (34) by means of a drive assembly (20). A protective cover (24) is provided which surrounds a chip-guiding area (24.11), within which a sawblade receiving region (24.12) is formed which is arranged and designed to receive the sawblade (30) in a working position, wherein the protective cover (24) has a lateral outer wall (24.6) which delimits the chip-guiding area (24.11) on the face facing away from the drive assembly (20), and a lighting assembly (70) with at least one lighting element (71) is provided in order to illuminate the cutting region of the portable circular saw (10) at least in some regions. The lighting element (71) is arranged behind the sawblade receiving region (24.12) in the advancing direction (V) of the portable circular saw (10). In order to improve the operating comfort, the invention proposes that the lighting assembly (70) is arranged and designed such that light emitted by the lighting element (71) is emitted largely in the advancing direction (V) of the portable circular saw (10), in particular without producing glare for a user of the portable circular saw (10), and light emitted by the lighting element (71) runs in a light-guiding region (24.13) at least in some regions, preferably completely in the light-guiding region, said light-guiding region being separated from the dust-guiding region of the chip-guiding area (24.11).
The invention relates to a light module (70) for a circular hand saw (10), the light module comprising a lamp housing (75) within which a voltage supply is accommodated, a lighting element (71) being electrically connected to the voltage supply. The lighting element (71) is arranged so as to emit light in an emission region on one side of the lamp housing (75) toward a working region of the circular hand saw (10), and the lamp housing (75) comprises a fastening portion (76) which forms a fastening side with a contact surface (72) which is arranged and oriented so as to be removably fastened to a fastening surface of the circular hand saw (10). By means of such an arrangement, a user is provided with the opportunity to suitably illuminate the working region next to the circular hand saw depending on their individual requirements.
The invention relates to a connector (76) for mechanically fastening a first component (12) to a second component (14). The first component (12) has at least one first coupling groove (34) with a first undercut (44) effective along a groove depth direction (38). The second component (14) has at least one second coupling groove (52) with a second undercut (62) effective along a groove depth direction (56). The connector (76) is plate-like or flat-bar-like. Furthermore, the connector (76) comprises a first engagement element (78) for anchoring in the first undercut (44) and a second engagement element (80) for anchoring in the second undercut (62). In addition, the connector (76) has an urging member (86) for positioning at least a portion of the first engagement element (78) in the first undercut (44) and at least a portion of the second engagement element (80) in the second undercut (62), the urging member (86) being kinematically coupled to the first engagement element (78) and to the second engagement element (80). A component connection (10) is also presented, comprising the first component (12), the second component (14) and a connector (76) of this type.
F16B 12/20 - Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like
F16B 12/12 - Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics
F16B 21/00 - Means without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding it; Stud-and-socket releasable fastenings without screw-thread
The invention relates to a hand-held connector milling machine (10, 20) for producing a recess (1) in a workpiece (2), the recess (1) having a connector hole (45) for receiving at least part of a connector (53). The connector milling machine (10, 20) comprises: an electrical positioning device (26) which is designed to move the milling tool (17) along at least two positioning degrees of freedom (31, 32, 33), that are in particular linear, relative to the bearing structure (8); and an electronic control unit (37) which is designed to control the electrical positioning device (26) according to movement information so that the electrical positioning device (26) displaces the milling tool (17) in a movement sequence defined by the movement information along the at least two positioning degrees of freedom (31, 32, 33), while the milling tool (17) performs a rotational removal movement in order to produce the recess (1) which has the connector hole (45) and a predefined recess geometry.
The invention relates to a tool device (1), in particular a saw device, comprising a stationary part (3), in particular a support part for supporting a workpiece, and a shifting part (7) which has a tool (4), in particular a saw blade, and which can be shifted relative to the stationary part (3) and in the process carries out a shifting movement (8) in order to set a position, in particular an angular position, of the tool (4) relative to the stationary part (3), further comprising a guide means (16) which is designed to guide the shifting part (7) relative to the stationary part (3) during the shifting movement (8), wherein the guide means (16) comprises a guide structure (18) that defines a movement path (17), and a guide part (20) that rests on a guide contour (19) of the guide structure (18) and that can be moved along the movement path (17) relative to the guide structure (18) in order to carry out the shifting movement (8). The tool device (1) comprises a pressing mechanism (21) which has a spring element (22) and which is designed to press, on the basis of a spring force (23) provided by the spring element (22), the guide part (20) against the guide structure (18) with a pressing force (24), in order to reduce or eliminate play between the guide part (20) and the guide structure (18) along the movement path (17).
B23D 47/02 - Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of guiding arrangements for work-table or saw-carrier
B23D 45/06 - Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade arranged underneath a stationary work-table
The invention relates to a hand-held milling device (10, 20) for producing a recess (1) in a workpiece (2). The milling device (10, 20) has a bearing means (6) having a bearing structure (8), which comprises a first structure portion (9) and a second structure portion (11) for simultaneously bearing against the workpiece (2) in a stationary manner during the production of the recess (1), the first structure portion (9) defining a first bearing plane and the second structure portion (11) defining a second bearing plane, and the second structure portion (11) being pivotably mounted relative to the first structure portion (9). The milling device also comprises: an electrical positioning device (26) which is designed to displace the milling tool (17) along at least two positioning degrees of freedom (31, 32, 33), that are in particular linear, relative to the bearing structure (8); and an electronic control unit (37) which is designed to control the electrical positioning device (26) according to movement information so that the electrical positioning device (26) displaces the milling tool (17) in a movement sequence, that is defined by the movement information, along the at least two positioning degrees of freedom (31, 32, 33).
The invention relates to a saw device (10) comprising a frame, a circular disc-shaped sawblade (12) which is rotatably mounted with respect to the frame, and an emergency brake unit (24). The emergency brake unit (24) comprises a blocking element (26), an actuator unit (32), and a control unit (34). The blocking element (26) has a bearing section (38) and a head section (42) which is designed to selectively engage into the sawblade (12) in order to brake same. The actuator unit (32) is coupled to the blocking element (26) at least in a normal position of the blocking element (26) such that the blocking element (26) can selectively be brought into engagement with the sawblade (12) by means of the actuator unit (32). Additionally, the blocking element (26) can be uninstalled from the frame separately from the actuator unit (32) and/or separately from the control unit (34) in a selective manner. The invention additionally relates to a method for preparing a triggered emergency brake unit (24) of a saw device (10) for operation. In this context, a blocking element (26) is uninstalled separately from the actuator unit (32) and/or separately from the control unit (34) and an unused blocking element (26) is installed.
The invention relates to a blocking element (26) for an emergency brake unit (24) of a saw device (10) with a circular disc-shaped sawblade (12). The blocking element (26) comprises a bearing section (38) via which the blocking element (26) can be supported on the saw device (10), a head section (42) which is designed to selectively engage into the sawblade (12) in order to brake same, and a deformation section (64). The deformation section (64) lies between the bearing section (38) and the head section (42) and/or connects the bearing section (38) and the head section (42) together. The deformation section (64) is arc-shaped and is designed to plastically shorten along an arc circumferential direction (66) in order to brake the sawblade (12). Furthermore, a saw device (10) is provided with a circular disc-shaped sawblade (12) and an emergency brake unit (24). The emergency brake unit (24) comprises such a blocking element (26), and the blocking element (26) is mounted on the saw device (10) such that the blocking device can selectively engage into the sawblade (12) in order to brake the sawblade (12).
The invention relates to a working apparatus (1) having a trestle (2) which, for the use thereof as intended, can assume a working configuration, and for the transport thereof can assume a transport configuration. The trestle (2) has a support body (4) suitable for objects to be placed thereon, and standing leg structures (8, 9) arranged in a positionally variable manner on the support body (4). A transport container (3) having a carrying handle (13) is used for transport of the trestle (2), which transport container can be a component separate to the trestle (2), or a component of the trestle (2) directly forming the support body (4).
The invention relates to a hand grinding machine comprising: a disc tool (40) having a machining face (44) for machining a workpiece (WST); a machine housing (50) in which a drive motor (11) for driving a tool holder (14) is arranged, on which holder the disc tool (40) is arranged; a dust removal port (30) for removing dust produced during machining of the workpiece (WST) by the disc tool (40); and an energy-storage-device interface (80) for detachably connecting, by means of a connection interface (90A) of an energy storage device (90) for supplying electrical energy to the hand grinding machine (10), in particular to the drive motor (11), the electrical energy storage device (90), wherein: the electrical energy storage device (90) comprises an energy-storage-device housing (91) which extends along an energy-storage-device longitudinal central plane (EE); the machine housing (50) has a machine longitudinal central plane (EM) which extends transversely, in particular perpendicularly, to the machining face (44); the hand grinding machine (10) comprises a handle portion (60) at which the hand grinding machine (10) can be grasped by an operator and can be guided forwards along the workpiece (WST) in a working direction (AR) parallel to the machine longitudinal central plane (EM). The energy-storage-device interface (80) of the hand grinding machine is arranged with respect to the machine longitudinal central plane (EM) and/or the connection interface (90A) of the energy storage device (90) is arranged with respect to the energy-storage-device longitudinal central plane (EE) such that the energy-storage-device longitudinal central plane (EE) has a transverse distance (QE) from the machine longitudinal central plane (EM) when the energy storage device (90) is held on the energy-storage-device interface (80).
B25F 5/02 - Construction of casings, bodies or handles
B24B 23/02 - Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
B24B 23/03 - Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor the tool being driven in a combined movement
B24B 55/10 - Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
15.
HAND GRINDING MACHINE HAVING A MOTOR HOUSING AND AN ENERGY-STORAGE-DEVICE INTERFACE
The invention relates to a hand grinding machine comprising: a disc tool (40) having a machining face (44) for machining a workpiece (WST); and a machine housing (50) in which a drive motor (11) for driving a tool holder (14) is arranged, on which holder the disc tool (40) is arranged, wherein: the machine housing (50) comprises a drive portion (51) having a motor housing (52), which comprises a motor-accommodating space (55) in which the drive motor (11) is accommodated; and the motor housing (52) comprises a single-piece peripheral wall (53) which annularly surrounds the motor-accommodating space (55). According to the invention, a connection protrusion (62) which extends along a machine longitudinal axis (LM) of the machine housing (50) and which is in particular formed in a single piece with the machine housing (50) is arranged on the peripheral wall (53), on which connection protrusion an energy-storage-device interface (80) is arranged for detachably connecting an electrical energy storage device (90) for supplying electrical energy to the hand grinding machine (10).
B25F 5/02 - Construction of casings, bodies or handles
B24B 23/02 - Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
B24B 23/03 - Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor the tool being driven in a combined movement
B24B 55/10 - Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
16.
HANDHELD POWER TOOLS WITH KICKBACK DETECTION AND METHODS OF DETECTING A KICKBACK CONDITION OF A HANDHELD POWER TOOL
Handheld power tools (8) with kickback detection and methods of detecting a kickback condition of a handheld power tool (8) are disclosed herein. The methods include moving an implement of the handheld power tool (8) within an implement motion plane and detecting motion of the handheld power tool (8). The methods also include determining that the kickback condition exists based, at least in part, on the motion of the handheld power tool (8). In some embodiments, the handheld power tool (8) is a circular saw (10) that includes a user-actuated assembly. The user-actuated assembly includes a motion sensor (110), a controller (120), and a motor (150). The circular saw (10) also includes a workpiece support (40) and a pivot (50). The motion sensor (110) is configured to detect acceleration along an acceleration detection axis (206) that extends a threshold pivot (50) axis-acceleration axis distance (56, 57, 59) of at most 4 cm from a pivot axis (52) of the pivot (50).
The invention relates to a portable worktable (1) having: a support structure (13) with a table operating assembly (13.2), by means of which the portable worktable (1) can be positioned on a stand surface (80), and a support (10), which extends along a longitudinal direction (LR) and a width direction (BR), wherein the support (10) comprises a first support (11), which is secured to the support structure (13), and the support structure (13) can be moved into a first working configuration (21) for using the portable worktable (1) as a table and a second working configuration (22) for using the portable worktable (1) as an underlying surface at a height near the floor. The portable worktable (1) can be moved into a transport configuration (23) for transporting the portable worktable (1), in particular together with the semi-stationary power tool (101) and/or the transport box (150), in which the portable worktable (1) can be manually moved into a tilting position and can be moved, in particular driven, relative to the stand surface (80). The portable worktable (1) has a second support (12), which can be moved into a first support position (12.1), in particular a workpiece support position, or a second support position (12.2), in particular a workpiece stabilizing position.
The invention relates to a transport box (10) having an interior (28) for accommodating goods to be transported (20), in particular a tool, and a wall structure (1) which provides a horizontally oriented transport-box upper face (26) and a horizontally oriented transport-box lower face (25), wherein: the transport box (10) comprises a coupling interface (5) for detachable, vertical coupling, guaranteeing tensile strength, with an upper system box (30B) which can be placed onto the transport-box upper face (26), and with a lower system box (30A) which can be positioned underneath the transport-box lower face (25), in order for the transport box to form a vertical stack with the upper system box (30B) and the lower system box (30A); the transport box (10) has an access opening (4) to the interior (28), which access opening is located on a vertically oriented transport-box peripheral face; the transport box (10) has a cover structure (2) which is attached to the wall structure (1) and which closes the access opening (4) in a closed position; and the cover structure (2) is movable to an open position without changes to the coupling interface (5) and/or without movement of the transport-box upper face (26) and/or the transport-box lower face (25), in which open position the cover structure (2) exposes the access opening (4) to the interior (28).
The invention relates to a stop unit (10) for guiding a workpiece (8), comprising: a stop body (1) extending in the longitudinal direction of the stop unit (10); and a fastening device having a first fastening mechanism (11) and a second fastening mechanism (12), which can be shifted into a relevant fastening position, for fastening the stop unit (10) to an electric tool (20), in particular a saw unit, and which are arranged spaced apart from one another in the longitudinal direction; further comprising: an operating element, which is coupled to the first fastening mechanism (11) and the second fastening mechanism (12) and can be made to perform a first operating-element movement, by means of which the fastening device can be sequentially shifted first into a first fastening state and then into a second fastening state, wherein in the first fastening state the first fastening mechanism (11) is in its fastening position and the second fastening mechanism is in a release position, and wherein in the second fastening state the first and the second fastening mechanism (11, 12) are in the relevant fastening position.
B27B 27/02 - Guide fences or stops for timber in saw mills or sawing machines; Measuring equipment thereon arranged laterally and parallel with respect to the plane of the saw blade
B23Q 3/00 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine
The invention relates to a sawing device (10), in particular a circular saw bench, having a saw blade (1), a riving knife receptacle (2) and a riving knife (3), which can be inserted into the riving knife receptacle (2) in order to assume a work position behind the saw blade (1). The sawing device (10) has a locking mechanism which can be set into a locking state by an insertion movement, directed in an insertion direction, of the riving knife (3) into the riving knife receptacle (2), in which locking state the riving knife (3) is locked by the locking mechanism in the riving knife receptacle (2) with respect to a removal direction opposite to the insertion direction.
The invention relates to a sawing device (10), in particular a circular saw bench or crosscut saw, comprising a workpiece support (2) for supporting a workpiece (1), a saw blade (3), and an electrical actuator device (11) for setting a saw blade position of the saw blade (3) relative to the workpiece support (2), wherein the electrical actuator device (11) has a first electrical actuator (21) which comprises a first rotor (31) and serves to set the saw blade position in a first degree of freedom (41), in particular a saw blade angle, and the sawing device (10) is designed to detect a current saw blade position of the saw blade (3) on the basis of a first rotor movement of the first rotor (31).
B23D 59/00 - Accessories specially designed for sawing machines or sawing devices
B23D 45/06 - Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade arranged underneath a stationary work-table
B27B 5/20 - Saw benches with feedable circular saw blade, e.g. arranged on a carriage the saw blade being adjustable according to depth or angle of cut; Radial saws, i.e. sawing machines with a pivoted radial arm for guiding the movable carriage
The invention relates to an electric tool (20), in particular a sawing device, comprising a tool (8), in particular a saw blade, for machining a workpiece (9), wherein the electric tool (20) has an operator-control device (2) via which there can be input a parameter value of at least one parameter relating to an operation of the tool (8), for example a cutting depth and/or a cutting angle, wherein the operator-control device (2) has a setting element (3), which is configured as a turn/push switch, for inputting the parameter value, and a display unit (4) for displaying the at least one parameter value.
The invention relates to an exoskeleton (20) comprising: a base portion (1) for mounting on a torso (2) of a human body; a support portion (3), which is movably coupled to the base portion (1), for supporting an arm (4) of the human body; an actuator device (5), in particular a pneumatic actuator device, that acts on the support portion (3) in order to provide a supporting force for the arm (4), the base portion (1) comprising a back part (8), a waist belt (16), as well as a force transmission assembly that extends from the back part (8) to the waist belt (16) and provides a force transmission path from the back part (8) to the waist belt (16) in order to transmit a reaction force transmitted from the support portion (3) to the back part (8) further to the waist belt (16). The force transmission assembly comprises a joint assembly for providing at least one rotational and/or translational degree of freedom between the back part (8) and the waist belt (16). The force transmission assembly also comprises a rigid force transmission element (18) which extends from the back part (8) to the waist belt (16) and via which the force transmission path passes.
The invention relates to an exoskeleton device (10), comprising: an exoskeleton (20) having: a base portion (1) for mounting on a body portion, in particular the torso (2), of the human body; an assistance portion (3) coupled movably to the base portion (1) and intended for assisting a body part, preferably a limb, in particular an arm (4), of the human body; and an, in particular pneumatic, actuator device (5) which acts on the assistance portion (3) and is intended to provide an assistance force for the body part, wherein the exoskeleton device (10) further comprises: a light-outputting device (171) and a control device (7) which is designed to control the light-outputting device (171) in order to set an orientation of a light bundle (172) provided by the light-outputting device (171) and/or to set a light intensity of the light-outputting device (171) and/or to project an item of auxiliary information (173) into the surroundings of the exoskeleton device (10).
The invention relates to a carrying device (50) which is in the form of an exoskeleton (20) and/or comprises a tool, for carrying on the human body, comprising a shoulder strap (19) with a shoulder strap support section (107) for supporting on a user's shoulder, wherein the shoulder strap support section (107) has a predetermined bending structure (109) extending in the shoulder strap longitudinal direction (108) and intended for reducing the flexural rigidity of the shoulder support section (107) in a bending direction (111) transversely with respect to the shoulder strap longitudinal direction (108) of the shoulder strap (19) such that, in a state resting on the user's shoulder, the shoulder support section (107) can be bent by means of an elevation movement of the user's arm (4) and a resultant formation of a shoulder depression (112) of the user in the bending direction (111) in order to assume a bent shape corresponding to the shoulder depression (112) and thus to lie flat against the user in the shoulder depression (112).
The invention relates to an electrically operable apparatus (70), which more particularly is in the form of an exoskeleton (20) or a suctioning apparatus (80), comprising a base portion (1) for attaching to a body portion, more particularly the torso (2), of the human body, an actuation and/or drive device (501), a control device (7) for controlling the actuation and/or drive device (501), and an operating element (14), which is used for user input into the control device (7) and which can be manually operated by the user of the electrically operable apparatus (70) during the use of the electrically operable apparatus (70).
The invention relates to an exoskeleton device, comprising an exoskeleton (20) having a base section (1) for attaching to a body section, in particular the torso (2), of the human body, having a support section (3) which is moveably coupled to the base section (1) for supporting a body part, preferably a limb, in particular an arm (4), of the human body, and having a, in particular pneumatic, actuator unit (5) acting on the support section (3) for providing a supporting force for the body part. The exoskeleton device (10) also comprises a control unit (7) which is provided with at least two manually and/or automatically selectable presets, each having at least one preset characteristic, which specifies a supporting force specification according to at least one input variable, in particular a position of the support section (3), wherein the at least two presets differ in terms of their preset characteristics, and wherein the control unit (7) is designed such that, using a preset selected from the at least two presets, it determines the supporting force specification according to the input variable and it adjusts the supporting force based on the supporting force specification.
The invention relates to an exoskeleton (20) comprising: a base portion (1) for mounting on a torso (2) of a human body; a support portion (3) for supporting an arm (4) of the human body; an actuator device (5), in particular a pneumatic actuator device, which acts on the support section (3) in order to provide a supporting force for the arm (4); and a shoulder joint assembly (9) via which the support portion (3) is movably coupled to the base portion (1). The shoulder joint assembly (9) comprises a lifting pivot bearing (34) via which the support portion (3) is mounted on the shoulder joint assembly (9) so as to be pivotable about a horizontal lifting axis (36). The shoulder joint assembly (9) also comprises a link chain (201) which defines a curved path of movement (202) for the lifting pivot bearing (34) relative to the base portion (1), which path of movement lies in a plane, in particular a horizontal plane.
The invention relates to an exoskeleton device (10) comprising an exoskeleton (20) having a base portion (1), a support portion (3), movably coupled to the base portion (1), for supporting a body part, in particular a limb, of the human body, and an in particular pneumatic actuator means (5), acting on the support portion (3), for providing a supporting force for the body part, the exoskeleton device (10) further comprising: a sensor means (6) for acquiring a risk parameter comprising a movement, in particular an angular speed and/or an angular acceleration, of the support portion (3) and/or a force and/or a pressure between the support portion (3) and the body part; and a control means (7) for activating the actuator means (5), wherein the control means (7) is designed to detect, on the basis of the acquired risk parameter, a risk condition at which there is the risk of a health impairment and/or an injury, and in response to the detection of the risk condition, to initiate a safety measure comprising the emission of a warning signal and/or a counteraction against the risk condition.
The invention relates to an exoskeleton (20), comprising a base section (1) for attaching to a body section, in particular the torso (2), of the human body, a support section (3) which is moveably coupled to the base section (1) for supporting a body part, preferably a limb, in particular an arm (4), of the human body, and a, in particular pneumatic, actuator unit (5) acting on the support section (3) for providing a supporting force for the body part. The base section (1) has a main section and a textile carrier system, with which the base section (1) can be attached to the body section. Alternatively, the support section (3) has a main section and a textile carrier system, with which the support section (3) can be attached to the body part, in particular to the back of the human body. The exoskeleton (20) also has a carrier system securing interface, with which the textile carrier system is detachably secured to the main section.
The invention relates to an exoskeleton apparatus (10) comprising: a sensor device (6) for detecting positional information indicating a position of an exoskeleton (20) in relation to the surroundings, in particular in relation to the force of gravity; and a control device (7) for actuating an actuator device (5) in order to provide a supporting force for a body part, the control device (7) being designed to adapt the provision of the support force on the basis of the detected positional information and/or to adapt a shape of a base portion (1) and/or a mounting of the base portion (1) on the human body on the basis of the detected positional information.
The invention relates to a vacuum cleaner (10), in particular an industrial vacuum cleaner, having a housing (1) which has a housing body (2) and a cover (3), which is arranged on the housing body (2), wherein a dust-collecting container (4), in particular a dust-collecting bag, which is accessible via the cover (3), is arranged in the housing body (2), and also comprising an inlet connection piece (5), which is movably mounted relative to the housing body (2) and can be displaced relative to the housing body (2) optionally into an operating position or into a release position, wherein, in the operating position, the inlet connection piece (5) projects into the dust-collecting container (4) through an aperture (6) in the housing body (2) and, in the release position, it does not project into the dust-collecting container (4), and wherein the inlet connection piece (5) can be pulled out of the dust-collecting container (4), by a pulling-out movement (7) taking place relative to the housing body (2), in order for the inlet connection piece (5) to be displaced from the operating position into the release position.
The invention relates to a jigsaw (1), comprising a saw blade (2) for sawing a workpiece (8) and a drive device (3) which is designed to set the saw blade (2) into a sawing movement with a plurality of consecutive movement cycles, wherein each movement cycle has an extension phase, in which the drive device (3) extends the saw blade (2), and a retraction phase, in which the drive device (3) retracts the saw blade (2), and the drive device (3) is designed to incline the saw blade (2) during the extension phase, with its first saw-blade end (6) facing the drive device (3), further in the advancing direction (9) of the jigsaw (1) than during the retraction phase.
B23D 49/16 - Hand-held or hand-operated sawing devices with straight saw blades actuated by electric or magnetic power or prime movers
B23D 51/16 - Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows
The invention relates to a system comprising at least one guide rail (21, 22) which is provided for guiding a hand-held power tool (11), has an elongate shape and extends along a longitudinal axis, wherein the guide rail (21, 22) has, on mutually opposite sides, a contact face (24) for the guide rail (21, 22) to rest on a workpiece (W), and has a guide face (23), in front of which a longitudinal guide face (31), extending along the respective longitudinal axis (L1, L2), for guiding the hand-held power tool (11) protrudes parallel to the longitudinal axis (L1, L2). The system comprises a carrying device (200) having a carrying body (201, 202) and a carrying handle (120), arranged on the carrying body (201, 202), to be grasped by an operator (BE), wherein the guide rail (21, 22) has, for connecting to the carrying device (200), form-fitting contours (34) which are able to be brought into engagement with mating form-fitting contours (124) of the carrying device (200) such that the guide rail (21, 22) is able to be carried by a user (BE) using the carrying handle (120).
The invention relates to a connector arrangement (60) for connecting two guide rails (21, 22) of a guide rail arrangement (20) for guiding a handheld power tool (11), wherein the guide rails (21, 22) extend along longitudinal axes (L1, L2) and are able to be releasably connected to one another by the connector arrangement (60) on mutually opposite end sides (27, 28), wherein the connector arrangement (60) has at least one connector element (61) which has plug-in portions (65) which are provided for plugging into plug-in receptacles (45, 55) on the mutually opposite end sides (27, 28) of the guide rails (21, 22) and on which there are arranged clamping devices (63, 64) for clamping in the respective plug-in receptacle (45, 55). There is provision that the clamping devices (63, 64) of the connector arrangement (60) are configured for sequential clamping with at first a parallel clamping force (F) which is substantially or exactly parallel to the guide surface (23), with the result that the longitudinal guide surfaces (23) of the guide rails (21, 22) are aligned with one another, and then with a perpendicular clamping force component (SFK) which is perpendicular to the guide surface (23).
B25H 1/00 - Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
36.
CIRCULAR SAWS HAVING A BLADE THAT MOVES RELATIVE TO A STATIONARY BASE STRUCTURE DURING OPERATIVE USE OF THE CIRCULAR SAWS TO CUT A WORKPIECE AND METHODS OF DETECTING A KICKBACK CONDITION OF SUCH CIRCULAR SAWS
Circular saws having a blade that moves relative to a stationary base structure during operative use of the circular saws to cut a workpiece and methods of detecting a kickback condition of such circular saws. The circular saws include a base structure, a user-actuated assembly, an attachment structure, and a controller. The attachment structure is configured to permit constrained relative motion between the base structure and the user-actuated assembly in a motion direction and during operative use of the circular saw to cut the workpiece. A motion sensor is configured to generate a motion signal indicative of motion of the user-actuated assembly along the motion direction. The controller is programmed to initiate a kickback response of the circular saw responsive to the motion signal being indicative of a kickback condition of the circular saw.
Handheld power tools with kickback detection and methods of detecting a kickback condition of a handheld power tool are disclosed herein. The methods include moving an implement of the handheld power tool within an implement motion plane and detecting motion of the handheld power tool. The methods also include determining that the kickback condition exists based, at least in part, on the motion of the handheld power tool. In some embodiments, the handheld power tool is a circular saw that includes a user-actuated assembly. The user-actuated assembly includes a motion sensor, a controller, and a motor. The circular saw also includes a workpiece support and a pivot. The motion sensor is configured to detect acceleration along an acceleration detection axis that extends a threshold pivot axis-acceleration axis distance of at most 4 cm from a pivot axis of the pivot.
The invention relates to a machine tool (11) in the form of a hand-held power tool (11) or a semi-stationary machine tool, the machine tool having a tool holder (19) for holding a work tool (AW), a drive motor (16) for driving the tool holder (19) and at least one electrical function unit (FE1, FE2), the machine tool having a control device (20) for actuating the at least one electrical function unit (FE1, FE2) using at least one actuation function (AF1-AF4), the at least one electrical function unit (FE1, FE2) being designed to perform an output function depending on the actuation by the at least one actuation function (AF1-AF4), and the machine tool having at least one operation element (33), which can be moved by an operator of the machine tool between a first operation element position (B331, B332) and at least one second operation element position (B331, B332) to actuate the control device (20). According to the invention, the machine tool has a parameterizing interface (28), via which at least one allocation parameter (ZP1, ZP2) can be parameterized for allocation of the at least one operation element (33) and the first operation element position (B331, B332) and/or the at least one second operation element position (B331, B332) to the at least one actuation function (AF1-AF4), such that, when the at least one operation element (33) is moved into the first or at least one second operation element position (B331, B332), the control device (20) actuates the at least one electrical function unit (FE1, FE2) using the at least one actuation function (AF1-AF4).
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
39.
PORTABLE ENERGY STATION, STACKED ARRANGEMENT AND METHOD FOR PRODUCING A PORTABLE ENERGY STATION
The invention relates to a portable energy station (1), comprising: a box-shaped housing (2); an energy storage apparatus (3) which is arranged in the housing (2) and is designed to provide an alternating voltage; an alternating voltage connection arrangement (4) at which the alternating voltage for an external consumer (6), in particular an electric tool and/or a vacuum cleaner (8), can be tapped; and a coupling interface (9) for coupling the portable energy station (1) to at least one coupling object (5) which is designed as a system box (7, 7A, 7B) or vacuum cleaner (8), in order to form a vertically high-tensile stack (10, 20) together with the at least one coupling object (5).
Electric power tools with safety brakes that include impulse solenoids and methods of operating the electric power tools. The electric power tools include an implement holder configured to hold an implement, which is configured to perform an operation on a workpiece. The electric power tools also include a motor, which is configured to actuate the implement holder to move the implement, and a safety brake. The safety brake includes a brake assembly configured to be transitioned between a disengaged configuration, in which the brake assembly permits motion of the implement, and an engaged configuration, in which the brake assembly resists motion of the implement. The safety brake also includes an actuator assembly configured to selectively provide a motive force to transition the brake assembly from the disengaged configuration to the engaged configuration. The actuator assembly includes an impulse solenoid and solenoid drive circuitry.
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
F16D 43/14 - Internally controlled automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses themselves being the clutching members
The invention relates to an electric tool (1), in particular a hand-held electric tool, e.g. a polisher (1A), a grinder and/or a saw (1B), comprising a tool (2), an electric motor (3) for driving the tool (2), and a control unit (4) for controlling the electric motor (3), the electric tool (1) being designed to be connected to a mains voltage (V1) and comprising a rectifier assembly (12) with a DC link (15) for supplying a DC link voltage (V2) on the basis of the mains voltage (V1), wherein the DC link voltage (V2) includes a plurality of successive voltage half-waves (16), and the control unit (4) is configured to provide, for each voltage half-wave (16), a torque half-wave (36) for controlling the electric motor (3), the shape of the torque half-wave (36) being flatter than the shape of the voltage half-wave (16).
H02P 21/22 - Current control, e.g. using a current control loop
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
42.
ELECTRIC TOOL, METHOD, ASSEMBLY, COMPUTER PROGRAM PRODUCT, AND COMPUTER-READABLE MEDIUM
The invention relates to an electric tool (1), in particular a hand-held electric tool, e.g. a polisher (1A), a grinder and/or a saw (1B), comprising a tool (2), an electric motor (3) for driving the tool (2), and a control unit (4) for controlling the electric motor (3), the electric tool (1) being designed to be connected to a mains voltage (V1) and comprising a rectifier assembly (12) with a DC link (15) for supplying a DC link voltage (V2) on the basis of the mains voltage (V1), wherein the DC link voltage (V2) includes a plurality of successive voltage half-waves (16), the control unit (4) is configured to provide a torque curve (28) for controlling the electric motor (3), said torque curve (28) comprising a torque half-wave (36) for each voltage half-wave (16), and the control unit (4) is configured to ascertain a back electromotive force (34) induced in the electric motor (3), and if the back electromotive force (34) is greater than or equal to the DC link voltage (V2), to reduce a current torque value of the torque curve (28).
H02P 21/22 - Current control, e.g. using a current control loop
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
43.
SUCTION DEVICE AND HANDHELD POWER SAW EQUIPPED THEREWITH
The invention relates to a suction device for a portable handheld power saw (10), wherein: the handheld power saw has a housing (17) in which a drive motor (11) is arranged and has a tool holder (14), which can be driven to linearly oscillate along a movement axis (SO) by the drive motor (11), for a sawing tool (15) having an elongate design and extending along a longitudinal axis for making a saw cut in a workpiece (W); the handheld power saw has a guide body (22) having a guide surface (23) facing away from the housing (17), in front of which guide surface the sawing tool (15) protrudes when mounted on the handheld power saw, for guiding the handheld power saw on the workpiece (W); the suction device (30) has fastening means (60) for detachable fastening on the handheld power saw and has a suction connection (31) for connecting a suction hose (91) such that particles produced when the workpiece is being machined can be suctioned away from the guide body (22) through the suction connection. The suction device (30) has at least one guide contour (55) which, when the suction device is mounted on the handheld power saw, protrudes in front of the guide surface (23) such that the handheld power saw can be guided on the workpiece by means of the at least one guide contour (55) instead of the guide surface.
The invention relates to a holding device (10) for arrangement on a battery pack (100) of a machine tool, in particular a hand-held machine tool, comprising at least one receptacle (12, 60) for holding a tool (14), an accessory or a consumable for the machine tool.
B25F 5/02 - Construction of casings, bodies or handles
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
The invention relates to a power tool (2), in particular a handheld power tool, for example a grinding machine, comprising a tool (5), an electric motor (6) for driving the tool (5), and a control unit (7) for actuating the electric motor (6) using a motor current (MI), wherein the control unit (7) has a start-up mode in which the control unit (7) actuates the electric motor (6) in such a way that the electric motor (6) during the start-up mode traverses a rotational speed ramp (DR), at which the rotational speed of the electric motor (6) is increased continuously up to an operating rotational speed (ADZ), wherein the control unit (7) is designed to adjust the gradient of the rotational speed ramp (DR) on the basis of an acquired temperature for the start-up mode and/or to adjust the intensity of the motor current (MI) on the basis of a/the acquired temperature for the start-up mode.
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
H02P 1/46 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor
The power tools (10) include a motor (20), and a sensor assembly (100) configured to generate a differential voltage signal (102) that is indicative of a distance between an individual and a cutting tool (60) being less than a threshold distance. The sensor assembly also is configured to produce a sensor assembly output (104) that is based upon the differential voltage signal. The power tools further include an analysis circuit (300) configured to receive the sensor assembly output and to generate a trigger signal (302) responsive to the sensor assembly output being outside a nominal sensor assembly output range. The power tools also include a mechanical reaction mechanism (70) configured to insulate the individual from the cutting tool responsive to receipt of the trigger signal. Method for verifying operation of said sensor assembly.
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B26D 7/22 - Safety devices specially adapted for cutting machines
F16P 3/14 - Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
47.
POWER TOOLS INCLUDING ELECTRONIC SAFETY MECHANISMS WITH SUPERVISORY CIRCUITS
Power tools (10) including electronic safety mechanisms (100) with supervisory circuits (160). The power tools include a motor (20) configured to generate a motive force, an implement holder (28), and an electronic safety mechanism. The implement holder is configured to receive the motive force from the motor. Receipt of the motive force generates driven motion of the implement holder. The electronic safety mechanism defines a disengaged configuration and an engaged configuration. The electronic safety mechanism includes a detection circuit (110) configured to detect an actuation parameter (112) and to generate a primary trigger signal (114) based, at least in part, on the actuation parameter. The detection circuit also includes a detection circuit controller (130), which is programmed to control the operation of the detection circuit, and a supervisory circuit, which is configured to verify proper operation of the detection circuit controller.
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
48.
SAFETY BRAKES FOR CIRCULAR SAW BLADES, CIRCULAR SAWS THAT INCLUDE THE SAFETY BRAKES, AND METHODS OF OPERATING CIRCULAR SAWS
Safety brakes (100) for circular saw blades (40), circular saws (10) that include the safety brakes (100), and methods of operating circular saws (10) are disclosed herein. The safety brakes (100) include a sensor assembly (110), a brake assembly (120), and an actuator assembly (160). The sensor assembly (110) is configured to detect an actuation parameter and to generate a trigger signal responsive to detection of the actuation parameter. The brake assembly (120) includes a brake cam (130) and a brake pad (190). The brake cam (130) is configured to selectively transition between a disengaged configuration and an engaged configuration and is configured to operatively engage a planar side surface of the circular saw blade (40). The brake pad (190) includes a pad friction material (192) and is positioned such that the pad friction material (192) faces toward the brake cam (130). The actuator assembly (160) is configured to selectively transition the brake cam (130) from the disengaged configuration to the engaged configuration responsive to receipt of the trigger signal.
B27B 5/38 - Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing
F16D 55/46 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member with self-tightening action
F16D 65/18 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
49.
CIRCULAR SAW WITH A BLADE MOUNT FOR CIRCULAR SAW BLADES AND METHOD OF ATTACHING A CIRCULAR SAW BLADE TO A CIRCULAR SAW
Circular saws (10) that include blade mounts (108) for circular saw (10) blades and methods of attaching circular saw (10) blades to circular saws (10) are disclosed herein. The circular saws (10) include a motor (90), an arbor (100), and a blade mount (108). The motor (90) includes a motor shaft (92) configured to rotate about a shaft rotational axis. The arbor (100) is configured to receive a torque from the motor (90) when the motor shaft (92) rotates about the shaft rotational axis. The blade mount (108) is operatively attached to the arbor (100) and is configured to selectively and operatively attach a circular saw blade (200) to the arbor (100). The blade mount (108) includes an inner flange (112) that includes an inner flange (112) blade-contacting surface that faces away from the motor (90). The inner flange (112) is free from any structure that projects away from the motor (90) and also away from the inner flange (112) blade-contacting surface.
B27B 5/30 - Sawing machines working with circular saw blades; Components or equipment therefor - Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
B27B 9/00 - Portable power-driven circular saws for manual operation
B27B 5/32 - Devices for securing circular saw blades to the saw spindle
Circular saws (10) with lock assemblies (400) are disclosed herein. The circular saws (10) include a motor (90) including a motor shaft (92) configured to rotate about a shaft rotational axis. The circular saws (10) also include an arbor (100) configured to operatively attach a circular saw blade (200) to the circular saw (10). The circular saws (10) further include a switch (65) configured to selectively apply an electric current (69) to the motor (90) and a switch lever (486) configured to be selectively actuated, by a user of the circular saw (10) and via an actuation force (497), to actuate the switch (65) and direct the switch (65) to apply the electric current (69) to the motor (90). The lock assemblies (400) include a switch lock (404), which defines a switch-locked configuration, in which the switch lock (404) resists actuation of the switch lever (486) by the user, and a switch-unlocked configuration, in which the switch lever (486) is free to be actuated by the user.
B27B 5/30 - Sawing machines working with circular saw blades; Components or equipment therefor - Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
B27B 9/00 - Portable power-driven circular saws for manual operation
B27B 5/32 - Devices for securing circular saw blades to the saw spindle
B23D 47/12 - Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of drives for circular saw blades
B25F 5/02 - Construction of casings, bodies or handles
B27B 5/38 - Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing
51.
PLUNGE SAW WITH CUT INDICATORS AND METHOD OF OPERATING A PLUNGE SAW
Plunge saws (10) with cut indicators (500) and methods of operating plunge saws (10) are disclosed herein. The plunge saws (10) include a motor (90) and an arbor (100), which is configured to operatively attach a circular saw blade (200) to the plunge saw (10) and to receive a torque from the motor (90). The plunge saws (10) also include a base plate (304) and a base plate pivot (316). The plunge saws (10) further include a plunge mechanism (380), which is configured to be selectively actuated, by a user of the plunge saw (10) and during operative use of the plunge saw (10) to cut a workpiece (98), to transition (532) the plunge saw (10) from a retracted orientation (54) to a plunged orientation (52) and to plunge the circular saw blade (200) into the workpiece (98). The plunge saws (10) also include a cut indictor, which is configured to project a light line (516) onto the workpiece (98) to visually indicate, on the workpiece (98), a location (504) of an edge of the circular saw blade (200).
Bevel saws (10) configured to make a bevel cut in a workpiece are disclosed herein. The bevel saws include a motor (90) and an arbor (100) configured to operatively attach a circular saw blade (200) to the bevel saws (10) and to rotate the circular saw blade (200) within a blade plane. The bevel saws (10) further include a base plate (304) that defines an arbor-facing side and an arbor-opposed side. The arbor is operatively attached to the arbor-facing side of the base plate (304). The bevel saws (10) also include a bevel guide (600) configured to selectively vary a bevel angle between the blade plane and the arbor-opposed side of the base plate (304) within a bevel cut angular range-of-motion to selectively vary an angle of the bevel cut within the workpiece. The bevel saws (10) may include a bevel guide mount (700) configured to operatively attach the bevel guide (600) to the base plate (304).
B27B 9/00 - Portable power-driven circular saws for manual operation
B27B 9/02 - Arrangements for adjusting the cutting depth or the amount of tilting
B27G 19/04 - Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws for manually-operated power-driven circular saws
B23D 47/02 - Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of guiding arrangements for work-table or saw-carrier
53.
CIRCULAR SAWS INCLUDING TRANSPARENT WINDOWS THAT EXTEND WITHIN BLADE GUARD OPENINGS AND COVER FASTENING STRUCTURES
Circular saws with transparent windows that extend within blade guard openings and cover fastening structures. The circular saws include a motor and an arbor configured to operatively attach a circular saw blade to the circular saw. The circular saws also include a blade guard. The blade guard includes a blade guard opening, which is positioned to permit a user of the circular saw to view a leading edge of the circular saw blade as the circular saw cuts a workpiece. The circular saws also include a transparent window, which extends within the blade guard opening, and a cover fastening structure, which is configured to selectively attach a splinter guard to the blade guard while the transparent window extends within the blade guard opening.
Track saws (10) with self-adjusting rib-guide assemblies and methods of operating self-adjusting rib-guide assemblies of track saws (10) are disclosed herein. The track saws (10) include a motor (90), an arbor (100), and a base plate (304). The base plate (304) defines an arborfacing side and an arbor-opposed side. The base plate (304) includes a rib-receiving channel and a self-adjusting rib-guide assembly. The self-adjusting rib-guide assembly at least partially defines the ribreceiving channel and is configured to automatically accommodate a range of raised rib transverse widths (48). The methods include positioning a raised elongate rib (44) of the track (42) within a ribreceiving channel of a base plate (304) of the track saw (10). During the positioning, the methods also include establishing a contact force between the raised elongate rib (44) and the self-adjusting rib-guide assembly. Responsive to the contact force, the methods further include moving at least a portion of the self-adjusting rib-guide assembly relative to a remainder of the track saw (10).
Handheld circular saws with improved cutting capabilities are disclosed herein. The handheld circular saws include a motor and an arbor, which is configured to operatively attach a circular saw blade to the handheld circular saws. In some examples, the handheld circular saws include the circular saw blade, the circular saw blade has a blade diameter, the handheld circular saw has a maximum depth-of-cut, and a ratio of the maximum depth-of-cut to the blade diameter is at least 0.35 and at most 0.45. In some examples, the handheld circular saw includes a base plate that defines an arbor-facing side. In some such examples, at least 95% of the handheld circular saw is fully contained within a footprint of the handheld circular saw. In some such examples, an entirety of the handheld circular saw may be contained within a base plate width of the base plate.
Circular saws are disclosed herein. The circular saws include a cutting assembly, a base plate, a pivot assembly, and a pivot bias mechanism. The cutting assembly includes a motor and an arbor. The base plate defines an assembly-facing side and an assembly-opposed side. The pivot assembly operatively attaches the cutting assembly to the base plate. The cutting assembly and the base plate are configured to operatively rotate, relative to one another and about a pivot axis of the pivot assembly, to selectively vary a region of the circular saw blade that extends on the assembly- opposed side of the base plate. The pivot bias mechanism is configured to apply a linear force between the cutting assembly and the base plate in a linear bias direction that urges the cutting assembly and the base plate in opposed directions along the pivot axis.
The invention relates to a handle device (40) for releasable fastening on a hand-held power tool (10), wherein the handle device has a clamping ring (41) with a clamping mount (42) for receiving a fastening portion (20) of the hand-held power tool (10) and also has a handle (60), which projects from the clamping ring (41), wherein a clamping-actuation grip (78), which can be activated manually by the operator (BE), can be used to adjust the clamping mount (42) between a clamping position (K), in which the fastening portion of the hand-held power tool (10) is clamped and in which an inner circumferential surface (43) of the clamping mount (42) lies against the fastening portion of the hand-held power tool (10)with a clamping fit, and a release position (L), in which the fastening portion of the hand-held power tools (10) is freed and in which the fastening portion of the hand-held power tool (10) can be inserted into the clamping mount (42) along an insertion axis (S), and wherein the handle device has an axial-form-fitting body (80), which is mounted in a movable manner in relation to the clamping mount (42) and has an axial-form-fitting contour (81) for engagement in a mating axial-form-fitting contour (25) of the fastening portion of the hand-held power tool. Provision is made for the handle device to have a form-fitting-actuation grip (90), which is separate from the clamping-actuation grip (78), can be activated manually by the operator (BE), independently of the clamping-actuation grip, and is intended for adjusting the axial-form-fitting body (80) between an engagement position, in which the axial-form-fitting contour (81) is in engagement with the mating axial-form-fitting contour (25), and a freeing position, in which the axial-form-fitting contour is disengaged from the mating axial-form-fitting contour.
The invention relates to a power tool device (10), in particular a screwing and/or drilling device, comprising a drive unit (1) for driving a tool (2) in rotation, in particular a drill or a screwdriver blade, the power tool device (10) being designed to detect at least one drive variable (AG) as the tool (2) is being driven in rotation, the drive variable (AG) being the torque acting on the tool (2) and/or a drive variable related to this torque, for example an electric drive variable of the drive unit (1), and the power tool device (10) being designed to determine, on the basis of the at least one detected drive variable (AG), a changeover criterion as the tool (2) is being driven in rotation and to change the rotary drive of the tool (2) in response to the detected drive variable (AG) satisfying the changeover criterion.
B25F 1/00 - Combination or multi-purpose hand tools
B25B 23/147 - Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers
The invention relates to a fluid container press (10, 20), in particular a cartridge press and/or a tubular bag press, comprising a receiving means (1) for a fluid container (2), a press device (3) for pressing the fluid container (2) and for locking the fluid container (2) in the receiving means (1), a supporting handle (4) with which the fluid container press (10, 20) can be supported with a first hand of a user, and a stabilising handle (5) with which the fluid container press (10, 20) can be gripped and stabilised with a second hand of the user, while the user grips the supporting handle (4) with their first hand. The fluid container press (10, 20) comprises an actuation element (6) which can be actuated by the user in order to release the locking of the fluid container (2) in the receiving means (1), such that the fluid container (2) can be removed from the receiving means (1), wherein the stabilising handle (5) is the actuation element (6) or the actuation element (6) is arranged in the region of the stabilising handle (5), such that the user can actuate the actuation element (6) with their second hand while the user grips the stabilising handle (5) with their second hand.
B05C 17/01 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure with mechanically or electrically actuated piston or the like
The invention relates to a hand apparatus (10), in particular a caulking gun and/or tubular-bag press, for dispensing filler material (72) into a joint (71), comprising: a handle assembly (73) for manual gripping of the hand apparatus (10) and for moving the hand apparatus (10) along the course (74) of a joint; a dispensing device (75) for dispensing the filler material (72) into the joint (71); and a sensor device (76) which is designed to detect an influencing variable that influences the body geometry of a filling-material body (78) formed by the filling material (72) dispensed into the joint (71); wherein the hand apparatus (10) is designed to adjust, on the basis of the detected influencing variable, a dispensing rate (r) at which the dispensing device (75) dispenses the filling material (72).
B05C 17/01 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure with mechanically or electrically actuated piston or the like
The invention relates to an attachment device (8) for attaching to a drive device (26), in particular to a screwing and/or drilling device, comprising a receiving means (1) for a fluid container (2) and a press device (3) for pressing the fluid container (2), in order to cause the fluid contained in the fluid container (2) to be discharged, wherein the press device (3) also functions to lock the fluid container (2) in the receiving means (1), such that the fluid container (2) cannot be removed from the receiving means, as well as comprising a stabilising handle (5) with which the attachment device (8) can be gripped with one hand of the user and stabilised during the discharge of the fluid, wherein the attachment device (8) comprises an actuation element (6) which can be actuated by the user in order to release the locking of the fluid container (2) in the receiving means (1), such that the fluid container can be removed from the receiving means (1), and wherein the stabilising handle (5) is the actuation element (6) or the actuation element (6) is arranged in the region of the stabilising handle (5) such that the user can actuate the actuation element (6) with their hand while the user grips the stabilising handle (5) with this hand.
B05C 17/01 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure with mechanically or electrically actuated piston or the like
62.
DRIVE MOTOR FOR A VACUUM CLEANER OR A MACHINE TOOL
The invention relates to a drive motor (10) for a vacuum cleaner or a machine tool, wherein the drive motor (10) comprises a stator (20) having a stator coil arrangement (26) and a rotor (30) having a motor shaft (33), which is mounted on the stator so as to be able to rotate about an axis of rotation (D), wherein the rotor (30) comprises a magnet arrangement (37) having permanent magnets (38) arranged annularly about the axis of rotation (D), wherein a sensor arrangement (60) is arranged in a stationary manner with respect to the stator in order to detect a respective angle of rotation position of the rotor (30) with respect to the stator, said sensor arrangement comprising at least two sensors (67A, 67b, 67C), which are configured to generate, in particular, digital switching signals (SA, SB, SC) for an energization device for energizing the stator coil arrangement (26) such that the rotor (30) can be driven in rotation about the axis of rotation through energization of the stator coil arrangement. Provision is made for the at least two sensors to be configured to detect two waves of a magnetic rotating field (FB) of the rotor (30), said waves being phase-shifted about an angle of rotation, wherein the sensors generate the switching signals in a manner dependent on a wave of the magnetic rotating field (FB) exceeding or undershooting a switching threshold (SH, SL) of the sensor (67A, 67b, 67C), said wave respectively passing through the sensor, and the permanent magnets of the magnet arrangement (37) having angular spacings from one another with respect to the axis of rotation, with the result that the waves of the magnetic rotating field (FB) comprise at the location of the respective sensor (67A, 67b, 67C) continuous, in particular approximately sinusoidal, half-waves (HO, HU) with vertices between continuously rising and falling edges (AF, DF), wherein the waves comprise transition sections (UG) between respectively successive half-waves (HO, HU) of a different polarity, wherein the waves in the transition sections (UG) comprise at least one step (ST) or a jump or an unevenness and that the switching thresholds of the sensors are arranged in the region of the continuously rising or falling edges of the half-waves.
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
H02K 29/08 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates or magneto-resistors
63.
SANDING PAD HAVING A SEALING ELEMENT AND A RIB STRUCTURE, AND SANDING MACHINE
The invention relates to a sanding pad (40) for a sanding machine (15), comprising a drive holder (49), situated on the machine side (41) of the sanding pad, to be fastened in a non-rotatable manner to a drive (26) of the sanding machine (15), such that the sanding pad (40) can be driven by the sanding machine in an in particular rotational and/or eccentric sanding motion that is suitable for sanding a workpiece (W); wherein the sanding pad comprises a machining side (42), which is opposite the machine side (41) and has a machining face (45) on which a sanding means (90) for abrasive machining of a workpiece (W) can be arranged so as to be fixed or removable using an adhesive layer (66); wherein inflow openings (48) for dust-laden dirty air (S) to flow in are situated in the machining face (45), and outflow openings (43) fluidically connected to the inflow openings via through-channels (59) are situated on the machine side (41); wherein the outflow openings (43) are situated in a suction zone (44) within an annular sealing element (80) that is situated on the machine side (41) for sealingly contacting a counter-sealing element (36) of the sanding machine; wherein the sanding pad comprises a planar body (50) which has a supporting wall (54) provided for supporting the sanding means (90), which supporting wall is reinforced by a rib structure (55), the ribs (56) of which project beyond the supporting wall (54) towards the machine side (41); wherein the ribs (56) delimit cavities (57) which are closed by the supporting wall (54) with respect to the machining side (42) and are open with respect to the machine side (41). The invention also relates to a sanding machine which comprises a sanding pad of this type. According to the invention, the sealing element (80) covers at least some of the cavities (57) with respect to the machine side (41).
The invention relates to a guide rail for guiding a hand-held power tool (20), in particular a sawing machine (21), the hand-held power tool (20) comprising: a drive motor (23), a working tool (25), which is driven by the drive motor (23), and a protective cover (30) for the working tool, which protective cover can be moved between an open position (O) and a covering position (A), wherein a rail body (61) has, on opposite sides with respect to its center plane (MI), a resting surface (62) for laying onto a base surface and a guide surface (63) for guiding the hand-held power tool (20), on which guide surface a guide contour (50) for guiding the hand-held power tool (20) along a guide axis (F) is arranged such that the working tool (25) of the hand-held power tool (20), guided parallel to the guide axis (F), can cut into the workpiece (W) in a working direction (AR) adjacently to a longitudinal narrow side (65) of the rail body (61), and wherein the guide rail (60) has a stop assembly having at least one opening stop (81, 91) for moving the protective cover (30) into the open position (O) when the hand-held power tool (20) is moved along the guide axis (F). The at least one opening stop (81, 91) can be moved on the rail body (61) between a stop position (AS) for actuating the protective cover (30) toward the open position (O) and a release position (FS) for releasing the protective cover (30) for movement toward the covering position (A). The opening stop (81, 91) projects further from the longitudinal narrow side (65) of the rail body (61), with a direction component parallel to the center plane (MI) of the rail body (61), in the stop position (AS) than in the release position (FS).
The invention relates to a guide device (100), to a system comprising a guide device and a tool (111) for surface processing, to a method for surface processing with the guide device (100), and to a method for retrofitting a tool (111) with the guide device (100). The guide device (100) comprises at least one guide element (101), an angle-setting device (102) and a connecting arrangement (130) for connecting the guide device to the tool (111). Furthermore, by means of the angle-setting device (102) a predetermined angle between the plane (180) of the at least one guide element (101) and an acting plane (110) of the connectable tool (111) is set. The guide device (100) is also characterized in that it is able to be converted between at least one flexible operating state and a stiff operating state.
The invention relates to a mobile hand-held machine saw (10) with a saw assembly (11), which has a saw toolholder (14) for a sawing tool (15) and a saw drive motor (12) for driving the saw toolholder (14), and having a guide device (17), which has a guide body (18) with a guide face (19) for guiding the hand-held machine saw (10) along a working direction (AR) on a workpiece (W) and on the upper side (19A) of which opposite the guide face (19) the saw toolholder (14) is movably mounted by way of a saw depth setting mount (16) between an upper and a lower depth setting position (UT), in which the saw toolholder (14) is adjusted closer to the guide face (19) than in the upper depth setting position (OT). According to the invention, the saw comprises a scoring assembly (31) mounted in front of the saw assembly (11) in the working direction (AR) on the guide device (17), having a scoring attachment tool holder (34) for a scoring tool (35), more particularly a scoring saw blade, and having a scoring attachment drive (32A) for driving the scoring attachment tool holder (34). The tool holder is movably mounted on or relative to the guide device (17) by means of a scoring attachment depth setting mount (36), which is separate from the saw depth setting mount (16), between at least one active position (AP), in which the scoring tool (35) arranged on the scoring attachment tool holder (34) projects in front of the guide face (19) to make a score (RI), which is advanced in the working direction (AR), in respect of a cut (SAE) to be made in the workpiece (W), and an inactive position (IP), in which the scoring tool (35) is drawn back behind the guide face (19).
The invention relates to a portable handheld machine saw having a saw assembly (11) which has a saw tool receptacle (14) for a saw tool (15) and a saw drive motor (12) for driving the saw tool receptacle (14), and having a guide device (17) which has a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the handheld machine saw (10) in a working direction (AR) on a workpiece (W) or has a guide rail (200), wherein, on the basis of the saw tool (15) protruding in front of the guide surface (19) during a sawing operation of the handheld machine tool, a saw cut (SAE) can be introduced into the workpiece (W) in the working direction (AR), the handheld machine saw having a securing device (100) for securing the saw tool receptacle (14) for a tool change of the saw tool (15), the securing device (100) securing the saw tool receptacle (14) in relation to a driving by the saw drive motor (12) in a securing position (SG) and releasing it in a saw operating position (FS). According to the invention, the handheld machine saw (10) has a pre-scoring assembly (31), arranged in front of the saw assembly (11) on the guide device (17) in relation to the working direction (AR), having a pre-scoring tool receptacle (34) for a pre-scoring tool (35), in particular a pre-scoring saw blade, and having a pre-scoring drive (32A), in particular a pre-scoring drive motor (32), for driving the pre-scoring tool receptacle (34), wherein, on the basis of the pre-scoring tool (35) protruding in front of the guide surface (19) during pre-scoring operation of the handheld machine tool, a score (RI) can be introduced into the workpiece (W), in the working direction (AR), in front of the saw cut (SAE) to be introduced, and the securing device (100) secures the pre-scoring tool receptacle (34) in relation to a driving by the pre-scoring drive (32A) in a scoring position (SG) and releases it in the saw operating position (FS).
The invention relates to a prescoring tool (35) for a power saw, wherein the prescoring tool (35) is designed to be rotatably driven about an axis of rotation (DV) and has a disc-shaped blade body (310) having flat sides (311, 312) facing away from one another, said blade body having, in its centre (ZV) penetrated by the axis of rotation (DV), a machine holder (315) for releasable fastening to a prescorer tool holder (34) of the power saw (10) and having, at its radial outer circumference (313) in relation to the axis of rotation (DV), a scoring tooth arrangement (300) for introducing a score in a first workpiece surface (WO) of a workpiece (W), wherein the scoring tooth arrangement (300) has at least one main cutting edge (350) extending transverse to the flat sides (311, 312) for producing a score base (RB) of the score (RI) and secondary cutting edges (351) transverse to the main cutting edge (350) on sides opposite one another in relation to the at least one main cutting edge (350) for producing score side flanks (RF) of the score (RI), wherein radially inner, with regard to the axis of rotation (DV), end regions (355) of the secondary cutting edges (351) provided for cutting the score into the workpiece have such a radial distance (RD) to the radial outer circumference (313) of the prescoring tool (35) that scores of a different depth, up to a maximum depth (Rmax) limited by the radial distance (RD), can be produced using the prescoring tool (35) and the power saw (10) can, with the aid of a sawing tool (15), introduce into the workpiece a saw cut (SAE) aligned with the score from a second workpiece surface (WU) of the workpiece opposite the first workpiece surface (WO) with a saw cut width (SBB) of the saw cut (SAE) that is smaller than the score width (RBB) of the score, introduction of the saw cut being such that the workpiece (W) does not fray at the score side edges (RF). The scoring tooth arrangement (300) has only a single scoring tooth (301-304) or at least two scoring teeth (301-304), which have an angular distance (WA) to one another of at least 20° in relation to the axis of rotation (DV).
The invention relates to a mobile hand-held sawing machine having: a sawing assembly (11), which has a sawing tool holder (14) for a sawing tool (15) and a saw drive motor (12) for driving the sawing tool holder (14); and a guide device (17), which has a guide body (18) having a guide face (19), extending along a longitudinal axis (L), for guiding the hand-held sawing machine (10) in a working direction (AR) on a workpiece (W); the hand-held sawing machine (10) having a pre-cutting assembly (31), which is arranged on the guide device (17) in front of the sawing assembly (11) in relation to the working direction (AR) in a longitudinal position in relation to the longitudinal axis (L) and has a pre-cutter tool holder (34) for a pre-cutting tool (35) and a pre-cutter drive (32A) for driving the pre-cutter tool holder (34), which is mounted movably on or relative to the guide device (17) using a pre-cutter depth adjustment bearing (36) along a depth adjustment movement path (BB) between at least one active position (AP), in which the pre-cutting tool (35) mounted on the pre-cutter tool holder (34) protrudes from the guide face (19) in order to make a score (RI) in the workpiece (W) in front of a saw cut (SAE) to be made, in the working direction (AR), and an inactive position (IR), in which the pre-cutting tool (35) is retracted behind the guide face (19). According to the invention, it has a pre-cutter grip element (37) which is associated with the pre-cutting assembly (31) and has a grip face (37A) for a user for guiding the hand-held power tool and is arranged on an upper face (19A), opposite the guide face (19), of the guide device (17) when the pre-cutter tool holder (34) or the pre-cutter assembly (31) is in the longitudinal position.
The invention relates to a mobile hand-held machine saw having a saw assembly (11), which comprises a saw toolholder (14) for a sawing tool (15), more particularly a saw blade, and a saw drive motor (12) for driving the saw toolholder (14), and having a guide device (17), which has a guide body (18) with guide face (19) extending along a longitudinal axis (L) for guiding the hand-held machine saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), wherein a cut (SAE) can be made in the workpiece (W) along the working direction (AR) by means of the sawing tool (15) projecting in front of the guide face (19) in sawing operation of the hand-held machine tool, wherein the hand-held machine saw (10) comprises a scoring assembly (31) which is arranged on the guide device (17) in front of the saw assembly (11) in the working direction (AR) and which has a scoring attachment tool holder (34) for a scoring tool (35), more particularly a scoring saw blade, and has a scoring attachment drive (32A) for driving the scoring attachment tool holder (34), wherein a score (RI) can be made in the workpiece (W) using the scoring tool (35), which projects in front of the guide face (19) in scoring operation of the hand-held machine tool, in advance, in the working direction (AR), of the intended saw cut (SAE). According to the invention, the scoring assembly (31) comprises a scoring attachment dust extraction device for extracting the particles created by the scoring tool (35) making the score (RI) in the workpiece (W).
The invention relates to a handheld sawing machine (10) having a sawing unit (11) which has a saw tool receptacle (14) for a sawing tool (15) and a saw drive motor (12) for driving the saw tool receptacle (14), and having a guide device (17) which has a guide body (18) with a guide face (19), extending along a longitudinal axis (L), for guiding the handheld sawing machine (10) in a working direction (AR) along a workpiece (W) or a guide rail (200), wherein, using the sawing tool (15) that protrudes in front of the guide face (19) during sawing operation of the portable power tool, a sawing cut (SAE) is able to be introduced into the workpiece (W) in the working direction (AR), wherein the handheld sawing machine (10) has a scoring unit (31), arranged on the guide device (17) in front of the sawing unit (11) with respect to the working direction (AR), with a scorer tool receptacle (34) for a scoring tool (35) and with a scorer drive (32A) for driving the scorer tool receptacle (34), wherein, using the scoring tool (35) that protrudes in front of the guide face (19), a score (RI) that is located in front, in the working direction (AR), of the sawing cut (SAE) to be introduced is able to be introduced into the workpiece (W). Provision is made for the saw tool receptacle (14) and the scorer tool receptacle (34) to be arranged on a top side (19A), located on the opposite side from the guide face (19), of the guide body (18) immediately next to a free longitudinal side (18A), extending parallel to the longitudinal axis (L) of the guide body (18), of the guide body (18), such that the sawing tool (15) arranged on the saw tool receptacle (14) and the scoring tool (35) arranged on the scorer tool receptacle (34) extend past the longitudinal side (18A) of the guide body (18) and protrude in front of the guide face (19).
The invention relates to a hand-held machine tool (10), in particular a surface-treating machine (10), comprising a machining head (12), a handle part (14) and a connecting arrangement (16) that connects the machining head (12) to the handle part (14), wherein a hose outlet (22) for connecting a hose (24) is formed on the connecting arrangement (16) or on the handle part (14), wherein a hose holding device (32) for holding the hose (24) is provided on the handle part (14) at a distance from the hose outlet (22).
The invention relates to a connection arrangement (10) for connecting a processing head (202) and another machine module (204) of a machine tool (200), in particular a surface processing machine (200), wherein the connection arrangement (10) comprises at least two connection parts (14, 16, 19) arranged successively along a longitudinal axis (12), each having a connection section (20, 22), via which the connection parts (14, 16, 18) can be connected to one another, wherein the connection sections (20, 22) outwardly border a respective inner cross-section (24, 26), wherein, in terms of facilitating the handling with simple constructive means, the connection arrangement is designed and developed in such a way that an electrical plug connector (28, 30), a mechanical clamping element (32, 34) and a connection opening (38, 38) to a flow channel (40, 42) formed in the respective connection part (14, 16, 18) are provided within the respective cross-section (24, 26) in such a way that, when putting together the connection sections (20, 22), the clamping elements (32, 34) engage behind one another and the plug connectors (28, 30) and/or the connection openings (36, 38) are each connected to one another. The invention also relates to machine tool (200) comprising a connection arrangement (10) of this type and an extension piece (16) for a connection arrangement of this type.
The invention relates to a connecting arrangement (10) for connecting a machining head (202) and a further machine module (204) of a hand-guided machine tool (200), in particular a surface machining machine (200), the connecting arrangement (10) having at least two connecting parts (14, 16, 18) which are arranged one after the other along a longitudinal axis (12) and each has a connecting section (20, 22) by means of which the connecting parts (14, 16, 18) can be connected to one another, the connecting sections (20, 22) in each case delimiting an inner cross-section (24, 26) towards the outside. Said hand-guided machine tool is designed with a view to simplify handling by simple constructive means in a hand-guided machine tool and further designed in that a mechanical clamping element (34) is arranged within the cross-section (26) of the connecting section (22) of one of the connecting parts (16, 18) and a mechanical counter-element (32) is arranged within the cross-section (28) of the connecting section (20) of the other connecting part (14, 16), an actuable clamping device (82) being provided on the connecting section (22) of the first connecting part (16, 18), which acts on the clamping element (34), the clamping element (34) and the counter-element (32) being designed in such a way that they can be brought into engagement with one another when the connecting sections (20, 22) are plugged together, and by actuating the clamping device (82), the connecting parts (14, 16, 18) can be braced against one another when the clamping element (34) engages with the counter-element (32). The invention also relates to a hand-guided tool machine (200) with such a connecting arrangement and to a corresponding extension element.
The invention relates to an assistance device (3) for a handheld tool device (2), in particular a screwing and/or drilling device, the assistance device (3) comprising: a fastening unit (27) for detachably fastening the assistance device (3) to the tool device (2); and an electrical assistance system (30), which is designed to provide an assistance function for assisting a processing operation of the tool device (2), the electrical assistance system (30) comprising an assistance-device communication unit (32) for communication with the tool device (2).
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B25F 5/02 - Construction of casings, bodies or handles
76.
METHOD FOR DETERMINING A ROTOR POSITION OF AN ELECTRIC MOTOR OF A POWER TOOL, AND POWER TOOL
The invention relates to a method for determining a rotor position of an electric motor (2) of a power tool (10), in particular of a screwdriving power tool, comprising the steps: testing (S4) whether a first electric motor current (I1) is below a threshold value (SW), and, in response to the testing showing that the first electric motor current (I1) is below the threshold value (SW), determining a rotor position of the electric motor (2) on the basis of the first electric motor current (I1) and/or a second electric motor current.
The invention relates to a tool device (10), in particular a saw device, having a tool (1) for machining a workpiece (4) located in a working region, the tool device comprising: a tool braking apparatus (5) for braking a tool rotational motion (9) of the tool (1); and a multi-bar linkage (6), by means of which the tool (1) can be pivoted selectively into the working region (3) in a feeding direction (7) or out of the working region in a lead-away direction (8). The multi-bar linkage (6) is designed to absorb and/or deflect forces occurring during braking of the tool rotational motion (9), while maintaining the pivotability of the tool (1), such that the tool (1) is not pivoted in the feeding direction (7) by the forces occurring during braking of the tool rotational motion (9) or is pivoted in the lead-away direction (8) by the forces occurring during braking of the tool rotational motion (9).
B27G 19/02 - Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
B27B 5/18 - Saw benches with feedable circular saw blade, e.g. arranged on a carriage
B27B 5/20 - Saw benches with feedable circular saw blade, e.g. arranged on a carriage the saw blade being adjustable according to depth or angle of cut; Radial saws, i.e. sawing machines with a pivoted radial arm for guiding the movable carriage
B27B 5/38 - Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing
B23D 59/00 - Accessories specially designed for sawing machines or sawing devices
B23D 45/04 - Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade or the stock carried by a pivoted lever
B23D 45/02 - Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade or the stock mounted on a carriage
B23D 45/06 - Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade arranged underneath a stationary work-table
The invention relates to a tool device (10), comprising: a shaft (2); and a braking apparatus (12), which has at least one braking element (3), in particular in the form of a brake disk, and a braking portion (14). The tool device (10) is designed to transfer the braking apparatus (12) from a released state, via a feeding state, into a braking state in a braking process, to provide coupling between the at least one braking element (3) and the shaft (2) for conjoint rotation in the released state such that the at least one braking element (3) corotates with the shaft (2) in the released state, to provide relative rotational motion between the at least one braking element (3) and the shaft (2) and to convert the relative rotational motion into an axial motion (31) of the at least one braking element (3) toward the braking portion (14) in the feeding state, and to apply a braking force to the shaft (2) by means of contact of the at least one braking element (3) with the braking portion (14) in the braking state such that the shaft (2) is braked.
The invention relates to a switch (30) for a hand-held power tool (10) or as a component of a hand-held power tool (10), which has an electric drive motor (16) that can be switched by the switch (30). The switch (30) has a switch housing (33) with a switch chamber (35) in which a switch actuator (75) that can be moved between at least two switch positions (ML, MR) is arranged in order to actuate an electric switch element, said switch actuator being kinetically coupled, by means of a transmission element (70), to a switch (30) actuation element (32), which is arranged outside the switch housing (33) and can be moved between at least two actuation positions (R, L), wherein the transmission element (70) passes through a through-opening (54) on a wall of the switch housing (33) such that the switch actuator (75) can be moved by moving the actuation element (32) in order to actuate the switch element (24). A rotary bearing (77) is arranged in the through-opening (54), the transmission element (70) being rotatably mounted on the rotary bearing about a rotational axis (D).
H01H 9/06 - Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
H01H 15/22 - Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch having a single operating part protruding from different sides of switch casing for alternate actuation from opposite ends
H01H 19/06 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
H01H 3/42 - Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
H01H 3/20 - Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling
80.
ATTACHMENT AND PORTABLE POWER TOOL HAVING AN ATTACHMENT
The invention relates to an attachment for a portable power tool (200), in particular a screwdriver machine or drilling machine, wherein the attachment (10; 110; 310) has a drive part (14) with a drive element (11) and an output part (15) with an output element (21) for driving a work tool (9), wherein the drive element (11) is able to be coupled to a machine output element (221) of the portable power tool (200) in order to drive the attachment (10; 110; 310) and is connected or coupled to the output element (21) via a transmission (60) for driving the output element (21), and wherein the drive part (14) has, on a drive side, a fastening device (30, 130, 330) for releasably fastening the attachment (10; 110; 310) to the portable power tool (200) for conjoint rotation with respect to an angular positioning axis (W). Provision is made for the output part (15) to be rotatable about the angular positioning axis (W) relative to the drive part (14) into at least two mutually different angular positions (W1, W2) and for each angular position (W1, W2) to be fixable by way of an angle fixing device (70, 170, 370) that has a drive angle fixing body (71, 171, 371) and an output angle fixing body (72, 172, 372), wherein at least one of the angle fixing bodies (72, 172, 372) is adjustable along an adjustment path (VB1, VB2, VB3) relative to the other angle fixing body (71, 171, 371) by an actuating element (91, 191, 391) of an actuating device (90, 190, 390) of the attachment (10; 110; 310) between an angle fixing position (V), in which the angle fixing bodies (71, 72; 171, 172; 371, 372) fix the output part (15) with respect to the drive part (14) for conjoint rotation, and an angle adjustment position (E), in which the angle fixing bodies (71, 72; 171, 172; 371, 372) release the output part (15) for rotation about the angular positioning axis (W) with respect to the drive part (14).
The invention relates to a hand-held machine tool (10), in particular an electrically operated hand-held machine tool, comprising: a housing (12); a machining axis (17) along which a tool (16) is arranged or can be arranged; an illumination device (24) which has at least one illuminant (26) that can be activated, wherein the illumination device (24) provides working light (28) within a beam angle (38) with a light intensity (40) which is increased or at a maximum along a main radiation direction (36) in order to illuminate a working area (30) during operation; and at least one light sensor (44) for measuring the light intensity. The invention is characterised in that: the light sensor (44) detects the light intensity of the working light (28) reflected on the working area (30) during operation and generates a sensor signal representing the light intensity; an adjusting unit (52) is provided for setting and/or adjusting the working light (28) generated by the illumination device (24); and a control unit (50) is provided which, during operation, actuates the adjusting unit (52) in accordance with the sensor signals.
The invention relates to an attachment (110) for a hand-held power tool (200), in particular a screwdriver machine or drill. The attachment (110) has an attachment housing (113) and a drive element (123) on a drive side (111), wherein the drive element can be coupled to a machine output element (221) of the hand-held power tool (200) in order to drive the attachment (110), and the drive element is rigidly connected to an output element (120A) of the attachment (110) or is coupled to same via a transmission (530) so as to transmit a movement in order to drive a working tool (242). The attachment (110) has a securing device (105) on the drive side (111) for releasably securing to the hand-held power tool (200). The securing device (105) has at least one support surface (232) which is stationary relative to the attachment housing (113) for supporting on the hand-held power tool (200) in the direction of a support axis (ST) and at least one latch body (150) which can be moved between a locking position and an unlocking position and which is loaded into the locking position by a spring assembly (157), said latch body comprising at least one locking contour (155) which is in engagement with a mating locking contour (235; 135) of the hand-held power tool (200) in the locking position when the at least one support surface (232) is supported against the hand-held power tool (200) and which is not in engagement with the mating locking contour (235; 135) in the unlocking position in order to release the attachment (110) from the hand-held power tool (200). The latch body (150) is rotatably mounted about the support axis (ST) in order to move the latch body between the locking position and the unlocking position.
The invention relates to a system comprising a first drive motor (120) and a second drive motor (20). The drive motors (20, 120) are provided for a suction device (400) or a machine tool in the form of a hand-held power tool (200, 300) or a semi-stationary machine tool or form components of the suction device (400) or the machine tool. Each of the drive motors (20, 120) has a stator (80) with an excitation coil assembly (86) and a rotor (40, 140) with a motor shaft (30, 130) which is rotatably mounted about a rotational axis on the stator or relative to the stator (80) using a bearing assembly (24A) and which passes through a shaft through-opening (42, 142) of a laminated core (41, 141) held on a holding portion (33) of the respective motor shaft (30, 130). The holding portions (33) of the motor shafts (30, 130) of the drive motors (20, 120) have identical outer circumferential geometries in the region of the laminated cores (41, 141), wherein the laminated core (141) of the first drive motor (120) is supported directly on the outer circumference of the holding portion (33) of the motor shaft (30, 130) supporting the laminated core (141), and the laminated core (41) of the second drive motor (20) is supported on the holding portion (33) of the motor shaft (30, 130) supporting the laminated core (41) via an electrically insulating insulation element (60A).
The invention relates to a drive motor for a suction device (400) or a machine tool in the form of a hand-held power tool (200, 300) or a semi-stationary machine tool. The drive motor (20, 120) has a stator (80) with an excitation coil assembly (86) and a rotor (40, 140) with a motor shaft (30, 130) which is rotatably mounted about a rotational axis (D) on the stator or relative to the stator (80) by means of a bearing assembly (24A) and which passes through a shaft through-opening (42, 142) of a laminated core (41, 141) held on the motor shaft (30, 130). The rotor (40, 140) has a magnet assembly (50) with at least one permanent magnet such that the rotor (40, 140) can be rotated about the rotational axis (D) by energizing the excitation coil assembly (86). According to the invention, the laminated core (41, 141) has at least one balancing section (55) produced by removing material from or notching the laminated core (41, 141), and/or the at least one permanent magnet is formed by a magnet body (52) which is magnetized when arranged on the laminated core (41, 141). The invention additionally relates to a method for producing such a drive motor.
The invention relates to a drive motor for a suction tool (400) or a machine tool in the form of a hand-held power tool (200, 300) or a semi-stationary machine tool. The drive motor (20, 120) has a stator (80) with an excitation coil assembly (86) and a rotor (40, 140) with a motor shaft (30, 130) which is rotatably mounted on the stator or relative to the stator (80) about a rotational axis (D) by means of a bearing assembly (24A), and the drive motor (20, 120) has a connection device (100) for electrically connecting the drive motor to an energizing device (206, 306) for energizing the excitation coil assembly (86). The connection device (100) has a main part (103) for securing to the stator (80) and a receiving arm (108) which protrudes from the main part (103), a conductor receiving area (107) being formed between the main part and the receiving arm for at least one electric coil conductor (88) of an excitation coil (87) of the excitation coil assembly (86). The connection device (100) has a connection contact region (101) for electrically connecting a connection line (15) for connecting to the energizing device (206, 306). The receiving arm (108) and the main part (103) are connected together by means of two electrically conductive connection regions (118, 119) and form a receiving eyelet (119A) which encircles the conductor receiving area (107) such that the conductor receiving area (107) has a closed state, and a welding current can flow past the conductor receiving area (107) between the main part (103) and the receiving area (108) via the electric connection regions (118, 119).
The invention relates to a drive motor for a suction tool (400) or a machine tool in the form of a hand-held power tool (200, 300) or a semi-stationary machine tool. The drive motor has a stator (80) with an excitation coil assembly (86) and a rotor (40, 140) with a motor shaft (30, 130) which is rotatably mounted on the stator or relative to the stator (80) about a rotational axis (D) by means of a bearing assembly (24A). The rotor (40, 140) is received in a rotor receiving area (82) of the stator (80), the inner circumference of said receiving area having grooves (89) which extend along longitudinal axes (L9) that run parallel to the rotational axis (D) in particular, and the receiving area has insertion openings (89D) which are open towards the rotational axis (D), are provided for inserting excitation coils (87) of the excitation coil assembly (86), and are closed by groove covers (180). The groove covers (180) are in engagement with rear-engagement contours (89E) of the grooves (89) at opposite groove cover longitudinal sides (195), each of which extends along the longitudinal axis (L9) of the respective groove (89), said longitudinal axis (L9) being transverse to a transverse spacing (Q) between the longitudinal sides, and the groove covers have a wall section (184) for covering the groove (89) between the longitudinal sides (195), wherein the rear-engagement contours (89E) support the groove cover (180) towards the rotational axis (D) and hold the groove cover in the respective groove (89). The transverse spacing (Q) between the longitudinal sides (195) of at least one groove cover (180) can be modified such that the groove cover (180) can be introduced into the groove (89) past the rear-engagement contours (89E) of the groove (89) in a movement direction radial to the rotational axis (D) of the rotor (40, 140) and can be brought into rear engagement with the rear-engagement contours (89E) of the groove (89) at the longitudinal sides (195) of the cover.
H02K 15/02 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
The invention relates to a drive motor for a vacuum device (400), or a machine tool in the form of a hand-held machine tool (200, 300) or a semi-stationary machine tool, the drive motor (20, 120) having a stator (80) with an excitation coil assembly (86) and a rotor (40, 140) with a motor shaft (30, 130) which is rotatably mounted, with the aid of a bearing assembly (24A), on the stator or in relation to the stator (80), about an axis of rotation (D), and which passes through a shaft passage (42, 142) of a lamination stack (41, 141) that is held on the motor shaft (30, 130) and is electrically insulated from the motor shaft (30, 130). According to the invention, an insulating sleeve (60) is provided between the motor shaft (30, 130) and the lamination stack (41, 141), said sleeve being plugged into the shaft passage (42, 142) and having a plug socket (64) with a plug-in opening (64A), through which the motor shaft (30, 130) can be plugged into the plug socket along a plug-in axis (S).
H02K 1/30 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
H02K 15/02 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
The invention relates to a tool device (10) having a drivable tool (1), comprising a shaft (2) coupled to the tool (1), also comprising one or more braking elements (3) that are arranged in a manner distributed in particular in the circumferential direction (4) about the shaft, wherein the tool device (10) is configured, as part of a braking operation, to move the one or more braking elements (3) from a released state into a braking state, wherein, in the braking state, the one or more braking elements (3) are in contact with the shaft and as a result exert a braking force on the shaft (2) such that the shaft (2) and as a result also the tool (1) are braked, and wherein, in the released state, the one or more braking elements (3) are not in contact with the shaft (2).
B27B 5/38 - Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
F16D 41/07 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags between two cylindrical surfaces
The invention relates to a machine tool, in particular a semi-stationary or mobile machine tool (10) and/or sawing machine, for machining workpieces (W) using a work tool (36), in particular a cutting tool or a sawing tool, wherein the machine tool (10) has a machine base (11) provided for placement on a surface and a drive assembly (30) that is arranged on the machine base and comprises a drive motor (32) and a tool receptacle (31) for the work tool (36), in particular for a cutting tool, which tool receptacle can be driven by the drive motor (32), wherein the machine base (11) has a support surface (14, 17) for supporting the workpiece (W) and at least one lateral contact body (40, 41) having a lateral contact surface (42) that is at an angle, in particular at a right angle, to the support surface (14, 17) and extends along a longitudinal axis (L), and wherein the machine tool (10) has at least one abutment body (70, 170) having an abutment surface (79) that can be secured, using a holding device (60), to the machine tool (10) so as to be opposite the support surface (14, 17), such that the workpiece (W) is supported between the support surface (14, 17) and the abutment surface (79) so as to rest against the lateral contact surface (42) for being machined by the work tool (36), in particular in order to produce a crown molding cut. According to the invention, the abutment body (70, 170) can be releasably secured, by means of the holding device (60), to the machine base (11) in at least two different longitudinal positions (L1, L2) with respect to the longitudinal axis (L).
B23D 47/04 - Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work
B23Q 3/00 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine
The invention relates to a fastening apparatus (10, 20) for a functional unit (1), in particular for a tool, a tool accessory and/or a lighting apparatus, comprising: a housing (2), a suction region (3), which is arranged on the housing (2) and with which the fastening apparatus (10, 20) can be fastened releasably to a substrate, and an electrically operated negative-pressure unit, which is arranged in the housing (2) and is configured to provide a negative pressure in the suction region (3). The fastening apparatus (10, 20) also comprises at least one fastening interface (5) for fastening the functional unit (1). Alternatively or additionally, the fastening apparatus (10, 20) comprises the functional unit (1). The functional unit (1) comprises a guide device, in particular a guide rail, a router guide, a routing template, a rolling guide rail, a drilling apparatus, a lamp and/or a grazing light.
The invention relates to a machine tool (10), specifically a hand-held machine tool or semi-stationary machine tool, having a drivetrain (108), which comprises: a tool shaft (23) mounted rotatably on a drive carrier (80) by means of a bearing assembly (27); and a tool receptacle (35), arranged on the tool shaft (23), for an in particular plate-like working tool (40). The tool shaft (23) is rotatably driveable about a rotational axis by a drive motor of the machine tool, and a balancing device (50) is arranged on the tool shaft (23) which comprises a guide body (51) having at least one orbital path (52) extending around the rotational axis and at least one balancing body (54, 55) movably mounted in the orbital path (52). In this machine tool, according to the invention, the at least one orbital path (52) arranged on the guide body (51) comprises a first orbital path (52), which is at a first radial distance from the rotational axis, and at least a second orbital path (53), which is longitudinally spaced apart from the first orbital path (52) with respect to the rotational axis and is at a second radial distance from the rotational axis, which second distance is greater than the first radial distance, and is separate from the first orbital path (52) such that the balancing bodies (54, 55) arranged in each orbital path (52, 53) are held between the orbital paths (52, 53) so as to be non-adjustable and/or in a cage-like manner in the relevant orbital path (52, 53) thereof.
B24B 23/02 - Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
B24B 23/04 - Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
B24B 41/04 - Headstocks; Working-spindles; Features relating thereto
B24B 47/12 - Drives or gearings for grinding machines or devices; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
F16F 15/28 - Counterweights; Attaching or mounting same
F16F 15/36 - Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically
The invention relates to a machine tool, specifically a hand-held machine tool (10) or semi-stationary machine tool, having a drivetrain (108), which comprises: a tool shaft (23) mounted rotatably on a drive carrier (80) on the basis of a bearing assembly (27); and a tool receptacle (35), arranged on the tool shaft (23), for a working tool (40) which in particular is plate-like, wherein the tool shaft (23) is rotatably driveable about a rotation axis by a drive motor of the machine tool (10), and wherein a balancing device (50) is arranged on the tool shaft (23) and comprises a guide body (51) having at least one orbital path (52) running around the rotation axis and at least one balancing body (54, 55) mounted movably in the orbital path (52). In the machine tool, the drive carrier (80) is mounted movably on a holder (95) of the machine tool, wherein a position of the drive carrier (80) relative to the holder (95) is adjustable by the balancing device (50).
B24B 23/02 - Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
F16F 15/28 - Counterweights; Attaching or mounting same
F16F 15/36 - Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically
B24B 23/04 - Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
B24B 41/04 - Headstocks; Working-spindles; Features relating thereto
The invention relates to a saw blade cover (40) for a table saw (10), an angle stop (50) for a table saw, and a table saw (10, 20, 30). The saw blade cover (40) comprises a cover body (41) made of a first material and a contact region (47) which has a sliding portion (48) made of a second material and along which the workpiece (11) can slide upon contact with the contact region (47). The stop unit (50) comprises a stop arm (55) having a main portion (51) made of a first material and an end portion (52) made of a second material. The table saw comprises a cover flap (87) which covers a gap which is formed between the housing assembly (80) and an underside (14) of a support portion when a housing assembly is pivoted.
The invention relates to a stop unit (50), in particular an angled stop, for guiding and/or feeding a workpiece to a saw blade (2) of a table saw (20), comprising a stop arm (55) extending in the longitudinal direction (54) for stopping the workpiece, wherein the stop arm (55) has a main section (51) which is made of a first material and which extends over more than half the longitudinal extent of the stop arm (55), and at least one second end section (52) which is located at an end of the main section (51) in the longitudinal direction (54) and which can come into contact with the saw blade (2) when a workpiece is fed towards the saw blade (2), the at least one end section (52) being made of a second material.
The invention relates to a table saw (30) comprising: a support structure (12) having a rest portion (1) which provides a rest surface (8) on which a workpiece (11) can rest; a saw blade (2) which engages through an opening of the rest portion (1) so that at least one part of the saw blade (2) is located below the rest-portion underside (14); and a housing assembly (80) which is located below the rest-portion underside (14) and surrounds the part of the saw blade (2) located below the rest-portion underside (14), wherein the saw blade (2) together with the housing assembly (80) can be pivoted relative to the rest portion (1) in order to set an angle between a cutting plane of the saw blade (2) and the rest surface (8). The table saw also comprises a cover flap (87), which covers a gap formed between the housing assembly (80) and the rest-portion underside (14) when the housing assembly (80) is pivoted, in order to prevent a user of the table saw from reaching through the gap towards the saw blade.
The invention relates to a connection device (1A, 1B) for fluidically connecting a suction hose (2) to a functional unit (3A, 3B), in particular a suction device (4), a tool (5), and/or a nozzle. The connection device (1A, 1B) has a first hollow cylindrical connection section (6) and a second hollow cylindrical connection section (7), wherein one of the connection sections (6) is connected to or can be connected to the suction hose (2), and the other connection section (7) is connected to a can be connected to the functional unit (3A, 3B). One of the connection sections (6) is located at least partly within the other connection section (7), and the outer circumference (15) of the connection section (6) contacts the inner circumference (14) of the other connection section (7). The two connection sections (6, 7) are rotatably mounted relative to each other in order to provide a rotational compensation for the suction hose (2), and an electric connection is provided between the two connection sections (6, 7) in order to provide an anti-static function. The invention is characterized in that the first connection section (6) comprises an elastic section (8) which can be deformed in the radial direction and by means of which the contact with the second connection section (7) is carried out.
F16L 25/01 - Construction or details of pipe joints not provided for in, or of interest apart from, groups specially adapted for realising electrical conduction between the two pipe ends of the joint or between parts thereof
F16L 27/08 - Adjustable joints; Joints allowing movement allowing adjustment or movement only about the axis of one pipe
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
F16L 25/00 - Construction or details of pipe joints not provided for in, or of interest apart from, groups
A47L 7/00 - Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
The invention relates to a power tool (10), in particular a hand-held power tool, comprising a support section (1) for setting down the power tool (10) on a substrate (2), in particular on a workpiece and/or a guide element. The power tool (10) has a support detection device (3) and is designed to detect, by means of the support detection device (3), a first support state, in which the power tool (10) is supported on the substrate (2) by way of at least one first region (5) of the support surface (1), and/or a second support state, in which the power tool (10) is not resting on the substrate (2) by way of at least the first region (5), and to determine an operating state of the power tool (10) on the basis of the detected support state.
B23D 59/00 - Accessories specially designed for sawing machines or sawing devices
B27G 19/00 - Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
B27G 19/04 - Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws for manually-operated power-driven circular saws
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
98.
HANDHELD MACHINE TOOL, IN PARTICULAR IMPACT DRIVER
The invention relates to a handheld machine tool, in particular an impact driver, having a drive train (20) for driving a tool receptacle (90), provided for receiving a tool (19), in particular a screwdriver tool, about a rotation axis (D), wherein the drive train (20) comprises a drive motor (21), an output shaft element (80), on which the tool receptacle (90) is arranged, and a drive shaft (48), which is drivable by the drive motor (21), for driving the output shaft element (80), wherein the output shaft element (80) is rotatably mounted by means of an output pivot bearing (83) and the drive shaft (48) is rotatably mounted by means of a drive pivot bearing (50) about the rotation axis (D) in respect of a machine housing (11), and wherein the output shaft element (80) is rotatably mounted by means of a shaft bearing arrangement (49) on the drive shaft (48) about the rotation axis (D). According to the invention, the shaft bearing arrangement (49) has at least two shaft bearings (49A, 49B), which are arranged adjacent to each other in relation to the rotation axis (D) and differ by at least one mechanical property.
B25B 21/02 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
99.
DEVICE FOR SUPPORTING AND/OR GUIDING A MACHINE TOOL
The invention relates to a device for supporting and/or guiding a machine tool (20) or a workpiece (W). The device has a contact body (40) with a contact surface (42) for placing on a support surface (H) of a workpiece (W) or a wall. The contact body (40) has a holding element (60, 860, 960) with an adhesive (70) for adhering to the working surface (H), wherein when the contact surface (42) of the contact body (40) is resting against the working surface (H), the adhesive (70) can be brought from a positioning state (PZ), in which the adhesive (70) is not in contact with the working surface (H) and the contact surface (42) can be positioned relative to the working surface (H), into an adhesive state (HZ), in which the adhesive (70) adheres to the working surface (H) and the contact body (40) is fixed to the working surface (H).
The invention relates to a holding element (60) for a device for supporting and/or guiding a machine tool (20) or a workpiece (W). The device has a contact body (40) with a contact surface (42) for placing on a working surface (H) of a workpiece (W) or a wall. The holding element (60) has an adhesive (70) for adhering to the working surface (H) and a securing means for a releasable hold on the contact body (40), wherein the securing means comprises at least one formfitting contour (90) for a formfitting hold on a holding element receiving area (55) of the contact body (40).
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