A concrete surface processing machine (100) for processing a concrete surface, wherein the concrete surface processing machine is arranged to be supported on the concrete surface by one or more support elements (150) extending in a base plane (101) of the machine parallel to the concrete surface, wherein the concrete surface processing machine comprises a control unit (110) connected to at least one linear photo sensor (130) extending transversally to the base plane (101), and wherein the control unit (110) is arranged to detect a height (h) of an incoming laser beam (H) relative to the base plane (101), based on a point of incidence of the incoming laser beam (H) on the linear photo sensor (130).
G05D 1/648 - Performing a task within a working area or space, e.g. cleaning
B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
E04F 21/24 - Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
The present disclosure relates to a charger 1 for a battery-operated system, configured to charge a battery pack 21, the charger comprising a housing 3 and a charging socket 5 in the housing for receiving a battery pack. Charging electronics provide a direct current to electric connectors 7 associated with the charging socket for charging the battery pack. A fan arrangement 9 is provided, force cooling the battery pack during charging. The housing 3 comprises a fan compartment 11, enclosing the fan 9, and an electronics compartment 13, enclosing the charging electronics. The fan compartment 11 and the electronics compartment 13 are separated at least by a wall 15.
The present disclosure relates to a battery-operated system comprising a tool (1), a battery pack (3) configured to power the tool by being inserted in a tool socket (5) of the tool, and a charger (7), comprising a charger socket (9) for charging the cooling channel (13) extending from a first (15) to a second (17) opening in the housing. The tool (1) comprises a fan arrangement (19) for cooling the battery pack (3) during use by forcing air from battery pack (3). The battery pack (3) has a housing (11) and a the first (15) to the second (17) opening in the battery pack housing (11), and the charger (7) comprising a fan arrangement (21) for cooling the battery pack (3) during charging but instead forcing air housing (11). This means that a battery cell that may become the hottest during discharging is cooled at ambient temperature during charging meaning that full charging can be attained faster.
The present disclosure relates to method for a robotic work tool system (220), where the method comprises controlling (S200) the movement of an outdoor robotic work tool (100) using a user terminal (205), acquiring (S300) position data for the robotic work tool (100), and providing (S400) boundary installation points (202a, 202b, 202c, 202d) during a setup phase as the robotic work tool (100) is controlled to move within an operation area (203). A boundary (201) that defines the operation area (203) is defined by means of the boundary installation points (202a, 202b, 202c, 202d). The method further comprises presenting (S600) data to a user about the position of at least one boundary installation point (202b) that is closest to a current position (P) of the robotic work tool (100), where the data is presented via a user terminal display (206) of the user terminal (205), and moving (S700), or inserting, at least one boundary installation point (202b′) in response to a user's instruction via the user terminal such that a boundary (201) that defines the operation area (203) is altered (201).
A floor grinder (100), comprising at least one motor (110, 120) arranged to rotatably drive one or more abrasive grinding tool holders (130), and a control unit (140) arranged to monitor an operating characteristic of the floor grinder, wherein the control unit is arranged to compare the monitored operating characteristic to a pre-determined set of operating characteristics indicative of a tool glazing condition, and to trigger an action in case the monitored operating characteristic is indicative of a tool glazing condition, wherein the control unit is arranged to monitor the operating characteristic of the floor grinder using a machine learning technique and a glazing model configured using a plurality of examples of floor grinders which have experienced various degrees of glazing.
B24B 49/10 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
B24B 7/18 - Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
B24B 49/00 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
B24B 49/16 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
B24B 55/02 - Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
B24B 55/10 - Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
A handheld power tool (1) is disclosed comprising a handle (20) and a trigger element (30) extending along a curved portion of the handle (20) and being movably arranged relative to the handle (20). The power tool (1) further comprises a spring assembly (8) configured to bias the trigger element (30) towards an unactuated position relative to the handle (20) and a switch (10) configured to switch from a first state to a second state when the trigger element (30) is moved from the unactuated position. The spring assembly (8) comprises a follower (9) and a spring member (13) configured to bias the follower (9) in a first direction (d1) against a sliding surface (18) of one of the handle (20) and the trigger element (30) to bias the trigger element (30) towards the unactuated position. The follower (9) is slidably arranged relative to the sliding surface (18) along a second direction (d2) being perpendicular to the first direction (d1).
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
B25F 5/02 - Construction of casings, bodies or handles
A pressure reducer assembly (100) includes a pressure reducer body (110) defining at least one pressure reducer chamber (120) along a central axis (X-X′). The pressure reducer chamber (120) includes an inlet section (122) and an outlet section (124) fluidly coupled with the inlet section (122). The pressure reducer assembly (100) further includes a spring-operated hollow piston rod (121) having a center (X) along the central axis (X-X′), a cylindrical inner peripheral surface comprising an inner diameter (A), and a cylindrical outer peripheral surface comprising an outer diameter (B). A diaphragm (128) made of elastic material is adapted to be operatively coupled with the piston rod (121). The diaphragm (128) includes a central hole (150) having a center (Y) along a central axis (W-W′) and a diameter (C). The pressure reducer assembly (100) is characterized in that, in an unmounted state, the outer diameter (B) of the piston rod (121) is greater than the diameter (C) of the central hole (150) of the diaphragm (128), whereas in a mounted state, the outer diameter (B) of the piston rod (121) is the same as the diameter (C) of the central hole (150) of the diaphragm (128), and the diaphragm (128) is assembled over the piston rod (121) so that the central axis (X-X′) of the piston rod (121) coincides with the central axis (W-W′) of the diaphragm (128).
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
A hose nozzle for spraying fluids is disclosed. The hose nozzle comprises a faceplate rotatable about a central pivot axis to two or more user-selectable rotational orientations. The faceplate comprises an upstream sealing surface and two or more entry openings. A seal member defines a seal opening that comprises a portion of a fluid flow pathway within the hose nozzle. The seal member may comprise a downstream sealing surface.
B05B 1/16 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with strainers in or outside the outlet opening having selectively-effective outlets
A water socket (110) couplable with a water system, the water socket (110) comprising: a base body (112) defining an annular surface and having a longitudinal axis (LL1); a coupling nipple (114) defined with the base body (112) along the longitudinal axis (LL1), and one or more coupling pins (116) operatively coupled on the annular surface of the base body (112), wherein the one or more coupling pins (116) is movable with respect to the base body (112) along the longitudinal axis (LL1), to an open position and a closed position, and wherein coupling of the hose connector (150) and the water socket (110) is such that the one or more coupling pins (116) at least partially moves to the open position within the base body (112), based on engagement of the coupling pin (116) with the at least one indent (162).
F16L 37/40 - Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of two pipe-end fittings with a lift valve being opened automatically when the coupling is applied
12.
SHOCK AND VIBRATION RESILIENT BATTERIES FOR POWER TOOLS
A battery (400) for a power tool, the battery comprising a central housing (310) terminated by a first gable (320) and a second gable (330), the first gable (320) being arranged opposite to the second gable (330) and facing in an insertion direction (D) of the battery, wherein the gables (320, 330) mate with the central housing (310) along respective gable rims (325, 335), thereby defining a volume (V) delimited by the gables (320, 330) and the central housing (310), the battery further comprising a battery cell pack (410) comprising a plurality of elongated battery cells extending in an elongation direction transversal to the insertion direction (D), wherein the battery cell pack (410) is arranged suspended in the volume (V) by at least three resilient members, wherein the resilient members extend in a direction diagonally away from a mass center of the battery cell pack and transversal to the elongation direction, towards a supporting location on one of the gable portion rims (325, 335).
H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
H01M 50/247 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/262 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
H01M 50/291 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
13.
CONCRETE SURFACE MAPPING ROBOTS, SYSTEMS, AND METHODS FOR PROCESSING CONCRETE SURFACES
A concrete surface processing machine (100) for processing a concrete surface, wherein the machine comprises means for self-locomotion and a control unit (110) arranged to control the means for self-locomotion, wherein the machine comprises one or more surface quality sensors connected to the control unit (110) and arranged to determine a local surface quality of the concrete surface, and wherein the control unit (110) is arranged to control a self-locomotion of the machine to determine a plurality of local surface quality values associated with respective different locations on the concrete surface.
G01N 21/88 - Investigating the presence of flaws, defects or contamination
G01N 3/56 - Investigating resistance to wear or abrasion
E01C 23/01 - Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
A hand-held power tool (1) is disclosed comprising a tool (2) and a motor assembly (3). The power tool (1) further comprises an actuator (5), a light emitting device (7) arranged on or adjacent to the actuator (5), and a control arrangement (21). The control arrangement (21) is configured to enable or disable operation of the motor assembly (3) based on input from the actuator (5). The control arrangement (21) is configured to obtain fault data indicative of an at least potential operational fault of the power tool (1). The control arrangement (21) is further configured to cause the light emitting device (7) to output a first type of signal when no fault data is obtained, and to cause the light emitting device (7) to output a second type of signal, being distinguishable from the first type of signal, when fault data is obtained.
A concrete surface processing machine (100) for processing a concrete surface, wherein the concrete surface processing machine is arranged to be supported on the concrete surface by one or more support elements (150) extending in a base plane (101) of the machine parallel to the concrete surface, wherein the concrete surface processing machine is arranged to rotate (R) about an axis (C) normal to the base plane (101) by the one or more support elements (150), wherein the concrete surface processing machine comprises control unit (110) connected to at least one laser range finder (120) arranged pointing in a fixed direction from the concrete surface processing machine, and wherein the control unit (110) is arranged to determine a boundary geometry of the concrete surface based on a sequence of ranges obtained by the laser range finder (120).
G05D 1/02 - Control of position or course in two dimensions
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
B24B 55/06 - Dust extraction equipment on grinding or polishing machines
B24B 7/18 - Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
E04F 21/24 - Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
A method performed in a control unit of a power tool driven by an electric motor, for detecting a fault state in the power tool, wherein the electric motor is associated with a motor current drawn over a motor interface, the method comprising monitoring a parameter of the electric motor during operation of the power tool, wherein the parameter is indicative of the motor current, obtaining a fault model, wherein the fault model is configured to classify a state of the power tool into a pre-determined number of states comprising one or more fault states, based on a series of electric motor parameter values, classifying a state of the power tool into the pre-determined number of states based on the fault model and on one or more values of the monitored electric motor parameter, and triggering an action by the power tool in case the state of the power tool is classified as a fault state.
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
A fluid distributor assembly (100) includes a body (110). The body (110) defines a fluid inlet (120) adapted to receive a fluid supply from a fluid source (200). The body (110) further defines at least one fluid outlet (130) fluidly coupled with the fluid inlet (120). The at least one fluid outlet (130) is provided with a threaded portion (132) to allow fluid coupling with the fluid distribution component (500), The fluid distributor assembly (100) further includes one or more stabilizer arms (702, 800) that extend away from the body (110). The fluid distributor assembly (100) is characterized in that a first end (802) of the one or more stabilizer arm (702, 800) is removably coupled with the threaded portion (132).
A robotic work tool system (200) comprising a server (230), a user device (240) and one or more robotic work tools (100, 100-1, 100-2), the server comprising a controller (231), the controller (231) being configured to: define (510) an extent of a work area (205); define (520) features of the work area; receive at least one user requirement from the user device (240); define (540) requirements based on the extent of the work area, the features of the work area and the user requirement; select (550) one or more of the one or more robotic work tools (100) based on capabilities of the robotic work tools (100) by matching the requirements to the capabilities of the robotic work tools; generate (560) operating instructions for the selected robotic work tools (100); and to transmit (570) the operating instructions to the selected robotic work tools (100).
A machine (100) for processing a concrete surface, the machine comprising a control unit (101) and at least three tool carriers (110) arranged to rotate about respective tool carrier axes, wherein at least one of the tool carriers (110) is arranged to generate a variable force acting on the machine, relative to the concrete surface, in response to a control signal generated by the control unit (101), wherein the control signal is configured to provide locomotion by the machine relative to the surface.
E04F 21/24 - Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
B24B 7/18 - Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
B24B 47/10 - Drives or gearings for grinding machines or devices; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
A liquid reservoir (100) includes a body (102) defining a base (104) and a plurality of sides (106). The plurality of sides (106) and the base (104) define a volume (116) to store the liquid (101) therein. The liquid reservoir (100) also includes a pump (122) operatively mounted with the liquid reservoir (100). The liquid reservoir (100) is characterized in that the body (102) includes one or more mounting features (138), (140), (338) such that the one or more mounting features (138), (140), (338) allow removable mounting of the pump (122) towards the base (104) of the liquid reservoir (100).
A control device for controlling one or more actuators (110, 120, 130, 140) on a construction machine (100), the control device comprising a control input arrangement configured to receive a manual control command from an operator for controlling the one or more actuators, and to output a coordinate indicative of the manual control command as function of time, the control device further comprising a processing unit arranged to determine a first time derivative of the coordinate, and a transmitter arranged to transmit the coordinate and the first time derivative of the coordinate to an actuator control unit of the construction machine, thereby enabling compensation for time delay between the control device and the construction machine by the actuator control unit, wherein the time delay T to be compensated for is based on a pre-determined calibration setting.
A hand-held electrically powered cut-off tool (100) for cutting concrete and stone by a rotatable cutting disc (105), the cut-off tool (100) comprising an electric motor (130) arranged to be controlled by a control unit (110) via a motor control interface (120), wherein the control unit (110) is arranged to obtain data indicative of an angular velocity of the cutting disc (105), and to detect a kickback condition based on a decrease in angular velocity, wherein the control unit (110) is arranged to control an electromagnetic braking of the electric motor (130) in response to detecting a kickback condition, wherein the control unit (110) is arranged to determine an angular acceleration associated with the electric motor (130), and to detect the kickback condition based on a comparison between the determined angular acceleration and a configurable detection threshold.
B28D 7/00 - Accessories specially adapted for use with machines or devices of the other groups of this subclass
B28D 1/04 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular saw blades or saw discs
H02P 3/22 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by short-circuit or resistive braking
H02P 21/14 - Estimation or adaptation of machine parameters, e.g. flux, current or voltage
26.
FLOOR SAWING EQUIPMENT WITH CONTROLLABLE SUPPORTING WHEELS
A floor saw (100) for sawing in a concrete surface segment (160), the floor saw comprising a circular cutting blade (110), at least two drive wheels (120) arranged to support the floor saw on the concrete surface segment (160), a sensor arrangement (140) configured to determine a current yaw motion of the floor saw, and a control unit (130) configured to receive a desired yaw motion setting, wherein the at least two drive wheels (120) are arranged to be driven at respective first and second wheel speeds, and wherein the control unit (130) is arranged to control a difference between the first and second wheel speeds to reduce a difference between the current yaw motion of the floor saw and the desired yaw motion setting.
B28D 1/04 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular saw blades or saw discs
B28D 7/00 - Accessories specially adapted for use with machines or devices of the other groups of this subclass
E01C 23/09 - Devices or arrangements for working the finished surface; Devices for repairing the surface of damaged paving for trimming paving edges
A hand-held electrically powered cut-off tool (100) for cutting concrete and stone by a rotatable cutting disc (105), the cut-off tool (100) comprising an electric motor (130) arranged to be controlled by a control unit (110) via a motor control interface (120), wherein the control unit (110) is arranged to obtain data indicative of an angular velocity of the cutting disc (105), and to detect a kickback condition based on a decrease in angular velocity, wherein the control unit (110) is arranged to determine an angular acceleration associated with the electric motor (130), and to detect the kickback condition based on a comparison between the determined angular acceleration and a detection threshold, wherein the detection threshold is configured at an angular acceleration between 5000 rad/s2 and 35000 rad/s2, and preferably between 10000 rad/s2 and 30000 rad/s2, and more preferably between 20000 rad/s2 and 30000 rad/s2.
B28D 7/00 - Accessories specially adapted for use with machines or devices of the other groups of this subclass
B28D 1/04 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular saw blades or saw discs
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 3/22 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by short-circuit or resistive braking
H02P 21/14 - Estimation or adaptation of machine parameters, e.g. flux, current or voltage
A watering system (100) includes a watering robot (102). The watering robot (102) further includes an irrigation controller (110) configured to operate within a region (114). A connector portion (106) is coupled to the body (104), and is adapted to couple with the one or more water supplying units (116) to receive water therefrom. The watering system (100) is characterized in that a sensor (130) of the watering robot (102) detects the one more water supplying units (116) to selectively integrates therewith. An actuator (140) of the watering robot (102) at least partially lifts up the watering robot (102) with respect to a ground surface (120) of the region (114). The watering robot (102) automatically couples with the one or more water supplying units (116) through the connector portion (106), and the actuator (140) at least partially lifts up the watering robot (102) with respect to the ground surface (120).
A01G 25/09 - Watering arrangements making use of movable installations on wheels or the like
A01D 43/14 - Mowers combined with apparatus performing additional operations while mowing with dispensing apparatus, e.g. for fertilisers, herbicides or preservatives
A hand-held electrically powered cut-off tool (100) for cutting concrete and stone by a rotatable cutting disc (105), the cut-off tool (100) comprising an electric motor (130) arranged to be controlled by a control unit (110) via a motor control interface (120), wherein the control unit (110) is arranged to obtain data indicative of an angular velocity of the cutting disc (105), and to detect a kickback condition based on a decrease in angular velocity, and wherein the control unit (110) is arranged to electromagnetically brake the electric motor (130) in response to detecting a kickback condition.
H02H 7/085 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for dynamo-electric motors against excessive load
H02P 6/182 - Circuit arrangements for detecting position without separate position detecting elements using back-emf in windings
H02P 3/22 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by short-circuit or resistive braking
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
A concrete processing system (200) for determining an onset of a first time window (301) for a concrete processing operation in a first area (A), the system (200) comprising one or more concrete sensors (220), a data processing system (240) and a timing support tool (250), wherein the one or more concrete sensors (220) are configured to determine a temperature and/or a moisture level of a maturing concrete slab in the first area (A), and to transmit sensor data indicating the temperature and/or moisture level via respective first communication links (230) to the data processing system (240), the data processing system (240) comprising a database (243) and processing circuitry (242) configured to determine a concrete maturity level for the first area (A) based on the sensor data, to estimate the onset of the first time window based on the concrete maturity level and on data associated with the concrete processing operation stored in the database (243), and to transmit timing data indicating the onset of the first time window to the timing support tool via a second communication link (260), wherein the timing support tool (250) is arranged to support timing of the concrete processing operation in the first area (A) based on the timing data.
E01C 23/01 - Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
E04F 21/24 - Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
A mobile hose reel assembly (100) includes a housing (110). The housing (110) includes a first wall (112), a second wall (114) coupled with and disposed opposite to the first wall (112) and a handle portion (116) coupled with the first wall (112) and the second wall (114). The housing (110) further includes a hose reel module (120) housed within the housing (110). The hose reel module (120) includes a hose reel (122), a drive motor (124) operatively coupled to the hose reel (122) and a transmission mechanism (126) adapted to transmit the motion of the drive motor (124) to the hose reel (122). The mobile hose reel assembly (100) is characterized in that the hose reel module (120) is adapted to exhibit a rocking motion relative to the housing (110). Further, the drive motor (124) is selectively activated and deactivated based on the rocking motion of the hose reel module (120) relative to the housing (110).
B65H 75/40 - Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable
A robotic work tool system, comprising a charging station and a robotic work tool, said robotic work tool comprising two charging connectors arranged on an upper side of the robotic work tool and said charging station comprising two charging connectors and a supporting structure arranged to carry said charging connectors and to extend over and above said robotic work tool as the robotic work tool enters the charging station for establishing electrical contact between the charging connectors of the robotic work tool and the charging connectors of the charging station from above, wherein said supporting structure is arranged to allow the robotic work tool exit the charging station by driving through the charging station without reversing.
B60L 53/30 - Constructional details of charging stations
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
A01D 34/00 - Mowers; Mowing apparatus of harvesters
B60L 50/52 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by DC-motors
B60L 53/16 - Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
B60L 50/16 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
A pressure reducer (100) for reducing a fluid pressure includes a pressure reducer body (110) defining at least one pressure reducer chamber (120). The pressure reducer chamber (120) includes an inlet section (122) and an outlet section (124) fluidly coupled with the inlet section (122). The pressure reducer chamber (120) further includes a spring-operated piston rod (121) and a sealing element (128) operatively coupled with the piston rod (121). A flange (132) is sealing coupled with the pressure reducer body (110). The pressure reducer body (110) defines a pressure compensation hole (114). The pressure reducer (100) is characterized in that the pressure reducer body (110) has a first threaded portion (112), and the flange (132) has a second threaded portion (134) such that the pressure reducer body (110) and the flange (132) are threadedly coupled. The pressure compensation hole (114) is disposed in the first threaded portion (112) of the pressure reducer body (110) such that the flange (132) is adapted to enclose the pressure compensation hole (114) when the flange (132) is coupled to the pressure reducer body (110).
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
37.
A BATTERY AND A MODULAR BATTERY SYSTEM FOR A POWER TOOL
A battery (300) for a power tool, the battery comprising: a central housing (310) with at least one side (301) terminated by a first gable portion (320), and by a second gable portion (330) opposite to the first gable portion, wherein the gable portions (320, 330) face in an insertion direction (D) of the battery, one or more guiding members (340a, 340b) arranged on the central housing (310) to guide the battery along the insertion direction (D1) into mating position with attachment means of the power tool (100), one or more electrical connectors (810) arranged in respective elongated slots (350) formed in the central housing (310), wherein the slots extend in the insertion direction (D2), where the one or more guiding members (340a, 340b) and the one or more slots (350) extend in a plane (P) tangential to the side (301) of the central housing (310), wherein the battery further comprises a handle (360) arranged on the second gable portion (330), where the handle is offset (O) from a center of the second gable portion (330) towards the plane (P).
H01M 50/247 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/262 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
A robotic lawnmower (14) comprises a chassis (18), and an outer shell (20) defining an exterior face of the robotic lawnmower (14), the outer shell (20) comprising a skirt enclosing the chassis (18) at a distance therefrom. A sensor module (30; 34) comprises a chassis connection interface for mechanically connecting the sensor module (30; 34) to a module connection interface on the chassis (18). The sensor module (30; 34) holds the sensor outside a vertical projection of the chassis (18), between the chassis (18) and the skirt. The module connection interface is located on a top face of the chassis (18), and the sensor module housing extends downwards to a position vertically lower than the module connection interface. A cantilever member holds a main housing body of the sensor module (30; 34) with a horizontal gap between the main housing body and the chassis (18).
A method for use in a robotic work tool system (200) comprising a first robotic work tool (100:1) and a second robotic work tool (100:1) arranged to operate in an operational area (205) comprising a transport area (TA), the method comprising determining (310) that a transport is upcoming, and in response thereto moving (320) to a start area (SA); waiting (330) for the second robotic work tool (100:2) to reach the start area (SA); and then determining (340) that it is time to enter the transport area (TA), and in response thereto moving (350) through the transport area (TA) as a group.
A method for use in a robotic work tool system (200) comprising a charging station (210), a wire (220) leading to/from the charging station (210) and a robotic work tool (100) arranged to operate in an operational area (205), the robotic work tool (100) comprising one or more magnetic sensors (170), and a satellite navigation sensor (175), wherein the method comprises: exiting the charging station (210); following the wire (220) navigating based on the one or more magnetic sensors (170); determining that a release point (RP) has been reached, and in response thereto navigating in the operational area (205) based on the satellite navigation sensor (175).
A skid plate for a robotic lawnmower, comprises an approximately circular plate with a central opening (13), for a hub (6b), and means of attachment (14, 15). The skid plate (2b) is attachable to the robotic lawnmower. An edge portion (7) of the circular plate is bent to extend transversally to a main plane (8) of the circular plate. An outer peripheral edge (11) thereof extends in a single plane.
A skid plate for a robotic lawnmower, comprises an approximately circular plate with a central opening (13), for a hub (6b), and means of attachment (14, 15). The skid plate (2b) is attachable to the robotic lawnmower. An edge portion (7) of the circular plate is bent to extend transversally to a main plane (8) of the circular plate. An outer peripheral edge (11) thereof extends in a single plane.
A robotic lawn mower comprises an electric motor connected to a rotatable cutting head (1b). The cutting head is connected to a cutting disk (3b) with at least one knife (4b) at its periphery. A skid plate (2b) as above is arranged below the cutting disk (3b).
The present disclosure relates to a lawn mower cutter unit (102) comprising a cutter propulsion unit (165) with a transmission axle (169) that is adapted to be rotated around a common rotation axis (Ax), a hub (166) that is rotatably connected to the transmission axle (169), a cutting disc (160), and a knob (120). The knob is rotatably connected to the hub (166) such that the knob (120) is adapted to rotate with the hub (166) and the transmission axle (169). The cutting disc (160) is displaceable along the common rotation axis (Ax), against a spring force of a spring element (130). The cutting disc (160) and the knob (120) are comprised in a coupling interface (140) that is comprised in the lawn mower cutter unit (102) and adapted to transfer a rotational torque transferred from the hub (166) to the cutting disc (160). The coupling interface (140) is adapted to releasably lock the cutting disc (160) in mutually separated positions along the common rotation axis (Ax) by means of the spring force, conferring an associated certain grass cutting height for each locked position.
A robotic work tool (1) is disclosed configured to operate in an area in an autonomous manner. The robotic work tool (1) comprises one or more rechargeable batteries (5) and a contact plate (3) configured to transfer electricity from a contact (4) of a docking station (8) to the one or more rechargeable batteries (5). The contact plate (3) comprises an edge surface (3′) configured to abut against the contact (4) of the docking station (8) upon movement of the robotic work tool (1) relative to the docking station (8) along a docking direction (d1). The contact plate (3) comprises a number of sections (s1-s5, b1-b4) each being angled relative to the docking direction (dl). The present disclosure further relates to a robotic tool system (10) comprising a robotic work tool (1) and a docking station (8).
B60L 53/38 - Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
A mobile signal generator (315) arranged to provide a supplemental control signal (325) through a supplemental wire (320) for establishing a supplemental work area (320) for a robotic working tool (100), said mobile signal generator (315) being arranged without a charging unit for the robotic working tool (100).
A floor saw for sawing in a concrete surface segment (160), the floor saw comprising a circular cutting blade (110) arranged transversally offset from a centrum line (C), which centrum line (C) is aligned with a forward direction (F) of the floor saw, the floor saw further comprising at least two supporting wheels (120) arranged to support the floor saw on the concrete surface segment (160), out of which supporting wheels at least one is a drive wheel, a sensor arrangement (140) configured to determine a current yaw motion of the floor saw, and a control unit (130) configured to obtain a desired yaw motion setting, wherein the drive wheel is arranged on an opposite side of the centrum line (C) compared to the circular cutting blade (110) and arranged to generate a respective variable wheel force by a respective first electric machine controlled by the control unit (130), and wherein the control unit (130) is arranged to control the first electric machine to reduce a difference between the current yaw motion of the floor saw and the desired yaw motion setting.
B28D 1/04 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular saw blades or saw discs
B28D 7/00 - Accessories specially adapted for use with machines or devices of the other groups of this subclass
47.
A DRIVESHAFT AND AN OUTDOOR POWER EQUIPMENT COMPRISING SUCH DRIVESHAFT
A driveshaft (130, 330) for outdoor power equipment (300) may include a power head interface assembly (340) configured to operably couple the driveshaft (130, 330) to a power head (110, 310) of the outdoor power equipment (300), an attachment interface assembly (342) configured to operably couple the driveshaft (130, 330) to a cutting attachment (120, 320) of the outdoor power equipment (300), an external casing rigidly coupling the power head interface assembly (340) to the attachment interface assembly (342), and a segmented internal drive assembly (360) configured to provide mechanical communication of mechanical power from the power head (110, 310) to the cutting attachment (120, 320). The segmented internal drive assembly (360) may include individually electrically insulated segments.
A riding yard maintenance vehicle includes a frame to which front wheels and rear wheels of the riding yard maintenance vehicle are attachable, a steering assembly configured to receive steering inputs by an operator of the riding yard maintenance vehicle, and a mounting assembly disposed at a front end of the riding yard maintenance vehicle to which a working assembly is attachable. The working assembly receives electrical power via a plug assembly and is configured to transition between a working position and a maintenance position while operably coupled to the mounting assembly. The mounting assembly includes a locking assembly configured to prevent the transition from the working position to the maintenance position while the plug assembly provides power to the working assembly.
A01D 34/66 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
A01D 34/78 - Driving mechanisms for the cutters electric
A metering console (100) includes a housing (110) adapted to allow flow of a liquid (F) therethrough. The housing (110) is adapted to attach with one or more gardening devices (132, 152). The metering console (100) includes a display (170) associated with the housing (110). The metering console (100) is characterized in that the display (170) is rotatably engaged with the housing (110) of the metering console (100) such that the display (170) rotates along a central axis (A-A′) of the housing (110).
G01F 1/12 - Adjusting, correcting, or compensating means therefor
G01F 1/075 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission with magnetic or electromagnetic coupling to the indicating device
A motor drive system (300) for controlling an operation of an electric machine (330) on construction equipment (100), the system comprising a frequency converter (320) and a control unit (340),
where the frequency converter (320) is arranged to receive electrical power from electrical mains (310) over a first electrical interface (160) at a first AC frequency and to convert the first AC frequency into a second AC frequency for output on a second electrical interface (326) to the electric machine (330),
where the control unit (340) is arranged to control (360) the frequency converter (320) to generate the second AC frequency in dependence of a configurable maximum current to be drawn over the first electrical interface (160).
H02P 23/00 - Arrangements or methods for the control of AC motors characterised by a control method other than vector control
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
A DUST EXTRACTOR COMPRISING A FINE FILTER SECTION ATTACHED TO A MOBILITY SECTION WHEREIN A DUST CYCLONE CONTAINER IS ATTACHED TO THE FINE FILTER SECTION
A dust extractor (1) comprising—a dust cyclone container (3) with an air inlet (2) for connecting to a hose, the dust cyclone container (3) having a contaminated portion downstream the air inlet (2) and a clean portion downstream the contaminated portion, where a dust separating part (9) is adapted to be provided between the contaminated portion and the clean portion, the dust separating part (9) comprising at least one cyclone and/or a coarse filter part (9), where the contaminated portion of the dust cyclone container (3) is adapted to be provided with a dust container (59), such as a flexible dust bag or a rigid box for collecting relatively coarse dust, —a fine filter section (12) arranged adjacent to the dust cyclone container (3) and having a contaminated section and a clean section downstream the contaminated section, and a fine filter part (15) is adapted to be provided between the contaminated section and the clean section, —a mobility section (66) comprising wheels (7, 8a, 8b) and a frame (6), —an air channel (47), between a clean side of the dust cyclone container (3) and a contaminated side of the fine filter part (15), —a blower/fan motor (10), preferably mounted to the fine filter section (12), for drawing air from the air inlet (2) through the dust separating part (9), through the air channel (47) and through the fine filter part (15), and allowing air to exit to the ambient after having passed the fine filter part (15), wherein the dust cyclone container (3) has a center axis (48) along its longitudinal extension, and the fine filter part (15) is provided at a radial distance from the dust cyclone container (3) along a plane (P) perpendicular to the center axis (48) of the dust cyclone container (3), the plane (P) coinciding with the dust cyclone container (3) and a portion of the fine filter part (15), wherein the fine filter section (12) is attached to the mobility section (66), and wherein the dust cyclone container (3) is attached to the fine filter section (12), so as to be suspended from the fine filter section (12).
A47L 9/16 - Arrangement or disposition of cyclones or other devices with centrifugal action
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
A cutting segment (110) for mounting onto a saw blade to provide an abrasive operation by the saw blade, the cutting segment comprising a body (200) having a cutting surface (210) facing in a cutting direction (C), and side surfaces (220) facing laterally (L) with respect to the cutting direction (C), wherein a plurality of protrusions (230) extend laterally from the sides (220), and wherein the cutting segment (110, 410, 510) constituted by the body (200) and the protrusions (230) is formed by a homogenous mixture of metal powder and diamond granules.
B28D 1/12 - Saw blades specially adapted for working stone
B23D 61/18 - Sawing tools of special type, e.g. wire saw strands, saw blades or saw wire equipped with diamonds or other abrasive particles in selected individual positions
A self-propelled robotic work tool (1) is disclosed comprising a tool chassis (3) and a number of tool support members (61, 62, 63) attached to the tool chassis (3) and being configured to abut against a ground surface (27) in a first plane (P1) during operation of the work tool (1). The work tool (1) further comprises a number of snap fit assemblies (s1-s4) and a tool body (5) attachable to the tool chassis (3) via the number of snap fit assemblies (s1-s4). The number of snap fit assemblies (s1-s4) is configured to allow movement of at least a portion (5′) the tool body (5) relative to the tool chassis (3) between a lowered and a raised position in directions (d1, d2) substantially perpendicular to the first plane (P1) when the tool body (5) is attached to the tool chassis (3) via the number of snap fit assemblies (s1-s4).
A selectively operable door (50) for a robotic vehicle (10) may include a door frame disposable in a barrier dividing two areas in which the robotic vehicle (10) is enabled to travel, a door body (54) hingedly connected to the door frame (52), and a latching assembly configured to alternately allow movement of the door body (54) such that the robotic vehicle (10) to enabled to pass through the selectively operable door (50) via displacement of the door body (54) and prevent movement of the door body (54) such that the door body (54) is retained in a closed state. The latching assembly may include an automatic lock configured to define a release position in which movement of the door body (54) from the closed state is allowed, and a capture position in which movement of the door body to the closed state is allowed and movement of the door body from the closed state is prevented.
A riding lawn care vehicle may include a frame to which wheels of the riding lawn care vehicle are attachable, a seat from which an operator of the riding lawn care vehicle is enabled to access steering controls for the riding lawn care vehicle, a seat mounting structure to which the seat is mounted, an isolation assembly providing vibration isolation between the frame and the seat mounting structure, and a hinge assembly configured to enable the seat to be pivoted via the seat mounting structure from an operating position to a pivoted position in which an area under the seat is exposed or accessible. The hinge assembly and at least a portion of the isolation assembly may be integrated to isolate the seat from vibrations at the frame.
B60N 2/38 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles specially constructed for use on tractors or like off-road vehicles
B60N 2/10 - Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable tiltable
A robotic vehicle (10) may include a chassis supporting a storage tank (14) in which an aqueous solution is contained, a mobility assembly operably coupled to the chassis to provide mobility for the robotic vehicle (10) about a service area, a positioning module configured to provide guidance for the robotic vehicle (10) during transit of the robotic vehicle (10) over the service area, a spray assembly and control circuitry. The spray assembly may be operably coupled to the storage tank to spray the aqueous solution via a nozzle and a pump during the transit of the robotic vehicle (10) over the service area. The control circuitry (12) may be operably coupled to the spray assembly. The control circuitry (12) may be configured to determine characteristics of the nozzle to control an amount of the aqueous solution applied to the service area based on the characteristics of the nozzle.
B05B 12/08 - Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
B05B 13/00 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups
B05B 9/00 - Spraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour
B05B 9/03 - Spraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
E01H 10/00 - Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials
A floor saw for sawing in a concrete surface segment (160), the floor saw comprising a circular cutting blade (110) arranged transversally offset from a centrum line (C), which centrum line (C) is aligned with a forward direction (F) of the floor saw, the floor saw further comprising at least two supporting wheels (120) arranged to support the floor saw on the concrete surface segment (160), out of which supporting wheels at least one is a drive wheel, a sensor arrangement (140) configured to determine a current yaw motion of the floor saw, and a control unit (130) configured to obtain a desired yaw motion setting, wherein the drive wheel is arranged on an opposite side of the centrum line (C) compared to the circular cutting blade (110) and arranged to generate a respective variable wheel force by a respective first electric machine controlled by the control unit (130), and wherein the control unit (130) is arranged to control the first electric machine to reduce a difference between the current yaw motion of the floor saw and the desired yaw motion setting.
B28D 1/04 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular saw blades or saw discs
A filter arrangement (200, 300, 400, 450) for a heavy duty dust extractor (100), the filter arrangement comprising a filter holder (180), an essential filter (150), a filter inlet (250), a filter outlet (260), a first air pressure sensor (310) and a second air pressure sensor (320), wherein the first air pressure sensor (310) is arranged to indicate an inlet air pressure (P3) associated with the filter inlet (250) and the second air pressure sensor (320) is arranged to indicate an outlet air pressure (P4) associated with the filter outlet (260), the filter arrangement further comprising a control unit (170) arranged to detect a state of the essential filter (150) based on a pressure difference between the inlet air pressure (P3) and the outlet air pressure (P4).
The present disclosure relates to fine filter part kit (63), comprising a replacement fine filter part (15) that is adapted to be mounted to a fine filter section (12) for a dust extractor (1). The fine filter part kit (63) further comprises a filter lid (16) that is adapted to be mounted to a corresponding used fine filter part (15) to be replaced, already mounted to the fine filter section (12), and thereby seal an opening (28) of a particle containing space inside the used fine filter part (15) before removing the used fine filter part (15). In this way, release of particles contained in the particle containing space into the ambient air is prevented and a secure disposal of the used fine filter part (15) is enabled.
B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B01D 46/42 - Auxiliary equipment or operation thereof
F16J 15/3284 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
A robotic vehicle (10) may include a chassis supporting a storage tank in which an aqueous solution is contained, a mobility assembly operably coupled to the chassis to provide mobility for the robotic vehicle about a service area (20), a positioning module (60) configured to provide guidance for the robotic vehicle (10) during transit of the robotic vehicle (10) over the service area (20), a spray assembly (90) and control circuitry (12).
E01H 10/00 - Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials
B05B 13/00 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups
B05B 12/08 - Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
B05B 12/00 - Arrangements for controlling delivery; Arrangements for controlling the spray area
B05B 15/652 - Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the jet can be oriented
G05D 1/02 - Control of position or course in two dimensions
G01W 1/10 - Devices for predicting weather conditions
67.
YARD MAINTENANCE VEHICLE WITH ADVANCED TILT MONITORING CAPABILITIES
A tilt monitoring assembly (200) for a yard maintenance vehicle (10) may include processing circuitry (210) configured to receive speed information indicative of a current speed of the vehicle (500), receive orientation information indicative of a three dimensional orientation of the vehicle (510), receive weight information indicative of operator weight associated with a driver of the vehicle (530), determine a tilt status based on the speed information, the orientation information and the weight information (540), and provide an output associated with operation of the vehicle based on the tilt status (550).
A01D 75/28 - Control mechanisms for harvesters or mowers when moving on slopes; Devices preventing lateral pull
A01D 34/64 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
68.
Multi-function key-operated ignition switch for outdoor power equipment for selecting different operating speeds
A powered device may include an engine, a mobility assembly operably coupled to the engine to provide mobility of the powered device responsive at least in part to operation of the engine, a working assembly operably coupled to the engine to perform a working function responsive at least in part to operation of the engine, and a key-operated combination ignition and speed control assembly including switch circuitry configured to control both starting the engine and selection of different selectable positions corresponding to respective different operating speeds for the engine.
F02D 31/00 - Use of non-electrical speed-sensing governors to control combustion engines, not otherwise provided for
F02N 11/08 - Circuits specially adapted for starting of engines
H01H 27/06 - Key inserted and then turned to effect operation of the switch
E01H 5/08 - Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying elements, e.g. conveying pneumatically dislodging essentially by driven elements
69.
SYSTEM AND REFILLING STATION FOR AN AUTONOMOUS SPRAYING ROBOT
A robotic vehicle (10) charging station (40) may include a charge interface configured to charge a battery (210) of a robotic vehicle (10) responsive to docking of the robotic vehicle (10) at the charging station (40), and a mixing assembly (240) configured to facilitate mixing a solid material and a liquid to form an aqueous solution for provision to a storage tank (14) of the robotic vehicle.
A snow removal device may include a chassis supporting a power unit, a mobility assembly operably coupled to the chassis to provide mobility for the snow removal device responsive to power provision from the power unit, a working assembly configured to move snow to an ejection path responsive to power provision from the power unit, and a chute assembly forming a portion of the ejection path, the chute assembly comprising a chute and a deflector. The chute may be rotatable via a chute rotator configured to provide at least 360 degree automated rotation of the chute. An orientation of the deflector may be changeable via automated pivoting of the deflector via an electrically operable deflector adjuster.
E01H 5/04 - Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying elements, e.g. conveying pneumatically
E01H 5/08 - Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying elements, e.g. conveying pneumatically dislodging essentially by driven elements
71.
ROBOTIC LAWNMOWER CUTTER ASSEMBLY, ROBOTIC LAWNMOWER, AND METHOD OF ATTACHING A LAWNMOWER CUTTER ASSEMBLY TO A LAWNMOWER
A lawnmower cutter assembly (22) comprises a knife carrier arrangement (26) and a skid plate arrangement (30), which are axially held between an axial stop shoulder (60) of the cutter drive shaft (34) and an end piece (54) rigidly connected to the cutter drive shaft (34), the end piece (54) thereby vertically carrying the skid plate arrangement (30) and the knife carrier arrangement (26). The cutter assembly (22) may be attached to a lawnmower, which may be a robotic lawnmower, by positioning the knife carrier arrangement (26) and the skid plate arrangement (30) on the cutter drive shaft (34); and thereafter, axially locking the axial position of the knife carrier arrangement (26) and the skid plate arrangement (30) in relation to the cutter drive shaft (34).
The present disclosure relates to a dust extractor (1) comprising a dust cyclone container (3) comprising a dust inlet (2) leading into the dust cyclone container (3), the dust extractor (1) further comprising a fine filter section (12) adapted to receive at least one fine filter part (15) downstream the dust cyclone container (3). A contaminated side of the fine filter part (15) is adapted to be fluidly connected to the dust cyclone container (3) via an air channel (47) that at least partly is comprised in a lid arrangement (13,14) and runs between a cyclone channel connecting rim (23) and a first fine filter section channel connecting rim (40), when the lid arrangement (13, 14) is positioned over the dust cyclone container (3) and the fine filter section (12). A first lid part (13) is releasably attachable to the dust cyclone container (3) and a second lid part (14) is releasably attachable to the fine filter section (12).
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
A47L 9/16 - Arrangement or disposition of cyclones or other devices with centrifugal action
A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
B01D 50/40 - Combinations of devices covered by groups and
B01D 45/16 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream
B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
B01D 46/42 - Auxiliary equipment or operation thereof
B01D 46/58 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
[Problem] To provide a carburettor assembly which suppresses dripping of fuel from a nozzle to an air-fuel mixing passage during idling.
[Problem] To provide a carburettor assembly which suppresses dripping of fuel from a nozzle to an air-fuel mixing passage during idling.
[Solution] The carburettor assembly comprises: a fuel chamber 12 for storing a fuel for supply to an air-fuel mixing passage 11; a nozzle 13 which comprises a check valve 13a and discharges the fuel to the air-fuel mixing passage 11, the nozzle 13 being arranged at a position in the air-fuel mixing passage 11 in which the fuel drops naturally; a plurality of holes 14 for discharging the fuel to the air-fuel mixing passage 11 during idling, at a position in an air-fuel mixture flow downstream from a position of the nozzle 13 in the air-fuel mixing passage 11; a fuel passage 15 for connecting the fuel chamber 12 and the nozzle 13 and also connecting the fuel chamber 12 and the plurality of holes 14; and a resistor 25 which is arranged in the fuel passage 15 between the fuel chamber 12 and the nozzle 13, and thereby forms resistance against a fuel flow directed to the nozzle 13.
The present disclosure relates to dust extractor (1) comprising a dust cyclone container (3) having a contaminated portion downstream an air inlet (2) and a clean portion downstream the contaminated portion, and a dust separating part (9) there between. The contaminated portion is provided with a dust container (59). The dust extractor (1) comprises a fine filter section (12) arranged adjacent to the dust cyclone container (3) and having a contaminated section and a clean section downstream the contaminated section, and a fine filter part (15) is adapted to be provided between the contaminated section and the clean section. An air channel (47) runs between a clean side of the dust cyclone container (3) and a contaminated side of the fine filter part (15). The dust extractor also comprises a mobility section (66) comprising wheels and a blower/fan motor (10) for drawing air from the air inlet (2) through the dust extractor. The dust cyclone container (3) has a center axis (48) along its longitudinal extension, and the fine filter part (15) is provided at a radial distance from the dust cyclone container (3) along a plane (P) perpendicular to the center axis (48) of the dust cyclone container (3), the plane (P) coinciding with the dust cyclone container (3) and a portion of the fine filter part (15). The blower/fan motor (10) is adapted to be powered at least partly by at least one onboard battery (61), and preferably two batteries (61), wherein the at least one battery (61) is arranged to be received in at least one battery slot (62) provided in the fine filter section (12) or in the mobility section (66).
A47L 9/16 - Arrangement or disposition of cyclones or other devices with centrifugal action
A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
75.
LAWN MOWER PROVIDED WITH A DIVIDER PLATE DIVIDING AN ENCLOSED SPACE INTO AN UPPER SPACE AND A CUTTING SPACE
The present disclosure relates to a lawnmower for processing lawn surface. The lawn mower comprises a chassis, at least partially carried by a set of wheels adapted to rest on the lawn surface, and one or more cutting devices suspended by the chassis. An outer cover, enclosing the chassis and is open towards the lawn surface to form an enclosed space between the outer cover and the lawn surface. A divider plate divides the enclosed space into an upper space and a cutting space, the divider plate generally extending along a plane that is approximately parallel with the lawn surface. The cutting device projects through an opening in the divider plate and edges of the divider plate are connected to the outer cover.
The present disclosure relates to a method for controlling an autonomous robotic tool using a modular autonomy control unit. The control unit includes an interface with the autonomous robotic tool and comprises a processor, configured to control the autonomous robotic tool during operation. The modular autonomy control unit transfers a set of test instructions to the autonomous robotic tool, triggering the latter to carry out a set of test actions in response to the test instructions—The modular autonomy control unit detects sensor input in response to the test actions, and computes a corresponding error vector, based on which calibration data is updated. Then, the modular autonomy control unit controls the robotic tool based on the calibration data. This allows a general control unit to be used in connections with several types of robotic work tools.
Irrigation controllers, methods, and computer readable media for altering a watering schedule for an irrigation controller in accordance with determined drought conditions are disclosed. A drought category for a watering zone may be determined. An adjusted landscape evapotranspiration rate may be calculated based on the drought category. The watering schedule for the watering zone may be altered in accordance with the adjusted landscape evapotranspiration rate.
A robotic work tool system (200) comprising a robotic work tool (100) comprising a controller (110), the controller (110) being configured to determine an area locality (310) associated with a hindrance; determine a classifier (C) associated with the area locality (310); and determine an action for the robotic work tool (100), wherein the action is based on the classifier (C).
A valve arrangement (900) for generating a pulse of air (1100) to clean an air filter (125) of a pre-separator (120), the arrangement (900) comprising: a main valve closure body (950) arranged to seal a passage (951) between a high pressure (P2) side and a low pressure (P3) side of the valve arrangement (900), a control body (940), connected to the main valve closure body (950), such that a position of the main valve closure body (950) Is determined by a position of the control body (940), a control chamber (930), partially defined by the control body (940), whereby a volume of the control chamber (930) Is variable In relation to the position of the control body (940), and a control chamber valve (920) having an open state and a closed state for regulating a pressure (P1) In the control chamber, wherein the control chamber (930) Is fluidly connected to the low pressure (P3) side via a connecting channel (935) configured with a connecting channel aperture (936), wherein the control chamber valve (920) Is configured with an aperture larger than the connecting channel aperture (936) such that the control chamber valve (920) Is arranged to overcome the connecting channel (935), and wherein the state of the control chamber valve (920) Is determined by a trigger device (910, 980). The arrangement also comprises a resilient trigger membrane (980) arranged between the high-pressure (P2) side and the low pressure (P3) side wherein the state of the control chamber valve (920) is determined by the position of the resilient trigger membrane (980).
B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
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 present disclosure relates to an outdoor robotic work tool interaction station (200) having a longitudinal extension (E) along which the interaction station (200) is adapted to receive an oncoming outdoor robotic work tool (100), and a vertical extension (V) that is perpendicular to the longitudinal extension (E). The interaction station (200) further comprises at least one radar reflective target (211, 212, 213).
The present disclosure relates to a power tool (1) driven by an internal combustion engine and comprising a housing (9) and having a service access interface (11) for connecting to an internal control unit of the engine during service. The access interface (11) comprises a connector (21) and an access interface cable, connecting the connector (21) to the control unit. The housing comprises an opening (15), and a grommet (13) is provided configured to clamp the access interface cable or the connector (21). The grommet (13) is configured to be moved between an operating position and a service position. In the operating position, the grommet (13) is located in the opening (15), the access interface cable and connector (21) being fully enclosed in the housing (9), and in the service position, the grommet (13) is located in said notch, the access interface cable or connector (21) extending through the opening inside the grommet (13).
The present disclosure relates to a robotic working tool system comprising a robotic working tool (1), and navigation means enabling the robotic working tool to navigate within a working area (3) defined by a working area boundary (13). The navigation means comprising a base RTK unit (9), adapted to be stationary during operation of the robotic working tool (1), a mobile RTK unit (11), adapted to move with and provide positioning data to the robotic working tool (1), and a recording RTK unit (11, 9, 17) which is separate from or separable from the robotic working tool (1) to be moved along a path (15) to record position data corresponding to the working area boundary (13) independently of the robotic working tool (1), and to transfer the position data to the robotic working tool (1).
G01S 19/04 - Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing carrier phase data
G05D 1/02 - Control of position or course in two dimensions
G01S 19/43 - Determining position using long or short baseline interferometry
A01D 34/00 - Mowers; Mowing apparatus of harvesters
83.
A HATCH MECHANISM FOR A PRE-SEPARATOR OR DUST EXTRACTOR FILTER TANK AND A DUST CONTAINER HOLDER FOR MATING WITH SUCH A HATCH
A hatch mechanism for a pre-separator 120, the mechanism comprising an aperture having a perimeter arranged in a plane, and at least three elongated obturator elements pivotably attached along the perimeter at respective hinge ends, each obturator element comprising a distal end arranged opposite to the hinge end along the extension direction of the obturator element, wherein adjacent obturator elements arranged along the perimeter are connected by foldable joining members arranged to guide the distal ends to a common intersection point distanced from the plane, whereby the obturator elements are arranged to fold about respective hinge ends to a position of mutual support to close the hatch mechanism.
A drilling machine (120) for a core drill (100), the drilling machine comprises a motor arranged to power a spindle, the spindle comprising a drill bit interface (121 ) arranged to hold a drill bit (110) and to rotate the drill bit (110) about an axle of rotation (101 ), the drilling machine (120) comprising a tag reader (125) connected to a reader coil, wherein the reader coil is arranged at the drill bit interface (121 ) and surrounding the spindle to inductively couple to a tag coil arranged on the drill bit, the drilling machine (120) further comprising a drilling machine control unit (140) connected to the tag reader (125), wherein the drilling machine control unit is arranged to read data associated with the drill bit (110) via the inductively coupled reader and tag coils, thereby obtaining information about the drill bit.
B23B 35/00 - Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
B23B 51/04 - Tools for drilling machines for trepanning
A trimmer head (1) comprises a rotatable housing (12) connectable to a trimmer line spool (13) rotatably supported by said housing (12) and a locking mechanism (14) for locking the trimmer line spool (13) to the housing (12) with a locking force (FL). The locking mechanism (14) is arranged to be moved from a locked to an unlocked position when a rotation speed of the trimmer head (1) is increased above an operating speed. The increased rotation speed causes a releasing force (FR) greater than the locking force (FL). In the unlocked position, the locking mechanism (14) releases the trimmer line spool (13) from the housing (12) such that the trimmer line spool (13) is movable and a trimmer line (3) spooled around the spool (13) is released and pulled out by a centrifugal force (Fc) caused by the rotation of the trimmer head (1), allowing feed of the trimmer line (3).
A robotic work tool system (200) for defining a working area (105) in which at least one robotic work tool (100) subsequently is intended to operate. The system (200) comprises at least one controller (210) being configured to receive sensor data for pose estimation and event data relating to a plurality of events of at least one robotic work tool (100) moving within the working area (105). The received sensor and event data are associated with each other in time. The controller (210) is configured to determine positions for the events based on the received sensor data associated with the respective event data and to determine features reflecting the working area (105) by relating positions associated with corresponding events with each other. The controller (210) is configured to adjust the determined positions based on the determined features by, for each feature, comparing the respective determined positions with each other; and determine, based on the adjusted positions, a map defining the working area (105).
A throttle control mechanism for a surfacing machine, the control mechanism comprising a control member (310) arranged movable (M, D) in a support structure (320), wherein the control member (310) is arranged to be tensely attached to a throttle actuator (330) of the surfacing machine via a tensile engagement member (340), wherein the control member (310) is arranged to be held fixed in the support structure in at least a first throttle position (350), where the control member is arranged biased towards an idle throttle position (370) when released from the first throttle position (350), and wherein the first throttle position (350) and the idle throttle position (370) are configurable to provide an engine speed margin with respect to a clutch engagement engine speed range of the surfacing machine.
F02D 11/02 - Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by hand, foot, or like operator controlled initiation means
G05G 1/04 - Controlling members for hand-actuation by pivoting movement, e.g. levers
F02B 63/02 - Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools
F02D 11/04 - Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by mechanical control linkages
G05G 5/06 - Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
A01D 34/68 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
G05G 5/00 - Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
G05G 5/18 - Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a member with respect to a fixed quadrant, rod, or the like by positive interengagement, e.g. by a pawl
F02D 1/00 - Controlling fuel-injection pumps, e.g. of high-pressure injection type
90.
MULTI-LAYER ABRASIVE TOOLS FOR CONCRETE SURFACE PROCESSING
An abrasive tool for a floor grinder, wherein the tool extends along a wear direction (D) from a grinding surface (G) to a mounting surface (M), wherein the abrasive tool comprises at least two sections (410, 420, 430) separated by a surface (P) transversal to the wear direction (D), where the at least two sections comprise respective abrasive materials associated with different grit sizes, where the section located closer to the grinding surface (G) is associated with a larger grit size compared to the section located closer to the mounting surface (M).
G06Q 10/0631 - Resource planning, allocation, distributing or scheduling for enterprises or organisations
G05B 19/18 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
G06Q 10/0875 - Itemisation or classification of parts, supplies or services, e.g. bill of materials
A method of manufacturing a chain link (8) of an abrasion cutting chain comprises: providing a metal blank with outer contours of the chain link (8) and rivet holes (14); and providing a ring (15) of a seal material by injection-molding of seal material around at least one rivet hole (14). The method further comprises providing a transfer channel (16) in the metal blank adjacent to at least one of the rivet holes (14). The seal material flows via the transfer channel (16) into at least one cavity portion of an injection mold assembly to form at least one rings (15) of seal material. An abrasion chain link comprises at least one rivet hole (14). A transfer channel (16) is provided next to the rivet hole (14).
B23D 65/00 - Making tools for sawing machines or sawing devices for use in cutting any kind of material
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
The present disclosure relates to a robotic working tool system comprising a robotic working tool (1), and a navigation arrangement enabling the robotic working tool to navigate within a working area (3) defined by a working area boundary (13). A recording unit (62) is used to establish at least first and second sub-areas (21-47), defined by closed perimeters. A mapping unit (60) is used to provide the working area to the robotic working tool (1) as a composite area (49, 51) with a closed perimeter, which is defined by the union of said first and second sub-areas (21-47).
A crankshaft (1) for a crankcase scavenged two stroke piston engine (2) is disclosed. The crankshaft (1) is configured to rotate around a rotation axis (ax) during operation. The crankshaft (1) comprises a crankpin (3) configured to move in a crank plane (cp) during operation, and a first and a second counterweight (5, 7) arranged on either side (S1, S2) of the crank plane (cp). The first counterweight (5) has a first outer radius (r1) measured from the rotation axis (ax) and the second counterweight (7) has a second outer radius (r2) measured from the rotation axis (ax). The first outer radius (r1) is smaller than the second outer radius (r2). The present disclosure further relates to a power unit (10), a crankcase scavenged two stroke piston engine (2), and a hand-held power tool (20).
F02B 33/04 - Engines with reciprocating-piston pumps; Engines with crankcase pumps with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase
F02F 3/24 - Pistons having means for guiding gases in cylinders, e.g. for guiding scavenging charge in two-stroke engines
F16C 3/20 - Shape of crankshafts or eccentric-shafts having regard to balancing
94.
SYSTEM AND METHOD FOR IMPROVED NAVIGATION OF A ROBOTIC WORK TOOL
A robotic work tool system (200) comprising a boundary (230) enclosing a work area (205) and a robotic work tool (100) comprising a proximity sensor (180) arranged to sense an obstacle (S1, S2, O, B), the robotic work tool (100) being arranged to operate within the work area (205) and the robotic work tool (100) being configured to determine (610) a sensed obstacle (S1, S2, O, B); determine (620) a distance (d); determine (630) whether the distance (d) is inside a threshold distance (D), and if so disregard (640) the proximity sensor (180); and, if not, take (650) evasive action to avoid the sensed obstacle (S1, S2, O, B).
The present disclosure relates to a starter pulley arrangement for an internal combustion engine. The arrangement comprises a cord drum (1) configured to house a starting rope wound thereon, a driver (3) configured to interact with a flywheel (5) or other part connected to an engine crankshaft, and a torsion spring (7) connecting the cord drum (1) to the driver (3), such that the cord drum can resiliently urge the engine crankshaft via the driver. The torsion spring (7) is tensioned in a resting position where the driver does not influence the crankshaft. This provides an improved resistance against wear on the parts of the starter pulley arrangement.
A robotic working tool system (200) comprising a robotic working tool (100) comprising a work tool (160), an attachment receiver (310) arranged to receive an attachment (320) and a controller (110), the controller (110) being configured to receive information regarding an attachment (320) being received, and in response thereto adapt change the operation of the robotic working tool (100) to operate in an attachment operating mode, and to determine an aspect of the attachment (320) and adapt the operation in the attachment operating mode to accommodate for the determined aspect.
A crimp sleeve (200) for joining two wire ends, wherein the crimp sleeve is arranged to receive (245) the wire ends from opposite sides along an axial direction (240) of the sleeve, the crimp sleeve having an outer circumferential surface (210) and an inner circumferential surface (220), wherein the outer circumferential surface (210) comprises a guiding structure (230) arranged to guide a crimping tool to crimp the sleeve at one or more pre- determined axial rotation angles (260).
B21F 15/06 - Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire with additional connecting elements or material
B28D 1/12 - Saw blades specially adapted for working stone
A robotic work tool arranged to operate in an operational area bounded by a boundary wire, the operational area encompassing a first charging station and a second charging station, each charging station comprising a base station wire, the robotic work tool comprising a controller, wherein the controller is configured to: operate in the operational area according to a first control signal, the first control signal comprising a first boundary signal being transmitted through the boundary wire and a first base station signal being transmitted through the base station wire of the first charging station; navigate the robotic work tool to locate and move the robotic work tool to the first charging station based on the first control signal; navigate the robotic work tool to distance the robotic work tool from the first charging station in a predetermined manner; synchronize to a second control signal comprising a first boundary signal and a second base station signal both being transmitted through the base station wire of the second charging station; and navigate the robotic work tool to enter the second charging station based on the second control signal.
A cutting tool (100) includes a top blade (102) and a bottom blade (104). The bottom blade (104) is pivotally coupled to the top blade (102). The top blade (102) and the bottom blade (104) together perform a cutting action on an object place between them. A first handle (108) is operatively coupled with the top blade (102). The first handle (108) defines a front portion (109) and a back portion (111). A second handle (110) is operatively coupled with the bottom blade (104). The cutting tool (100) is characterized in that in closed position of the cutting tool (100), at least a part of the second handle (110) at least partially encloses the back portion (111) of the first handle (108).
A hand operated cutting tool (200) for pipes or tubes includes a housing (202). The housing (202) defining at least one first opening (204) to receive an object (210) to perform a first cutting action, and a second opening (206) which is adapted to perform a second cutting action. The first opening (204) includes a longitudinal axis (A-A1) and the second opening (206) include a longitudinal axis (X-X′). The longitudinal axis (A-A1) and the longitudinal axis (X-X′) include an angle (Z) therebetween that is unequal to 0 degree. And, one or more cutting blades (208, 502) are operatively coupled to the first opening (204) and the second opening (206). The one or more cutting blades (208) is arranged such that it is performing both the first cutting action and the second cutting action.
patents
