Abstract

Provided is a hydraulic cylinder (100) wherein: a cylinder tube (10) comprises a circular main body part (12), a circular coupling part (13) to which a cylinder head (40) is coupled, and a circular connection part (14) which is formed between the main body part (12) and the coupling part (13); the coupling part (13) is formed such that the thickness (T2) thereof in the radius direction is greater than those of the main body part (12) and the connection part (14); the boundary between the main body part (12) and the connection part (14) and the boundary between the connection part (14) and the coupling part (13) are each formed so as to be tapered; the connection part (14) is formed such that the inclination angle thereof with respect to the main body part (12) is smaller than the inclination angle (α) of the boundary between the main body part (12) and the connection part (14) and the inclination angle (β) of the boundary between the connection part (14) and the coupling part (13); and an end part of the connection part (14) which is located on the coupling part (13) side is formed such that the thickness (T3) thereof in the radius direction is greater than that of the main body part (12) and not more than twice that of the main body part (12).

IPC Classes  ?

• F15B 15/14 - Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type

Abstract

This fluid pressure control device (100) comprises a main valve block (1) and a sub valve block (50) attached to the main valve block (1). The main valve block (1) includes an actuator passage (21) through which flows a working fluid supplied to and discharged from an actuator, a main spool (2) which switches the supply and discharge direction of the working fluid supplied to and discharged from the actuator through the actuator passage (21), and a first pressure detection passage (41) which connects to the actuator passage (21). The sub valve block (50) includes a second pressure detection passage (51) which connects to the first pressure detection passage (41), and a pressure detection port (52) which connects to the second pressure detection passage (51) and has a pressure sensor (60) attached thereto.

IPC Classes  ?

• F15B 11/00 - Servomotor systems without provision for follow-up action

Abstract

A valve device 100 comprises a housing 10 provided with a load pressure passage 15 for guiding a load pressure Pls to a variable displacement pump having a discharge capacity controlled in accordance with a self-pressure Pps that is discharged by itself and the supplied load pressure Pls. The housing 10 is further provided with a pump passage 11 for guiding a hydraulic oil that is sucked from a tank and discharged by the pump, a tank passage 12 for returning the hydraulic oil discharged from the pump to the tank, and a communication passage 17 with both ends communicating with the tank passage 12. At least a portion of the communication passage 17 is adjacent to the load pressure passage 15 while being spaced apart only by a wall of the housing 10, without another passage for guiding the hydraulic oil interposed therebetween.

IPC Classes  ?

• F15B 21/0427 - Heating
• F15B 11/02 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member

Abstract

This cylinder device (A) comprises: a cylinder (2); a piston (3) that partitions the inside of the cylinder (2) into two working chambers (R1, R2); a first flow path (4) and a second flow path (5) that connect the working chambers (R1, R2) in parallel; a first variable throttle valve (6) provided in the first flow path (4); a hydraulic cylinder (1) having a second variable throttle valve (7) provided in series in the second flow path (5) and a bidirectional discharge type pump (9) driven by a motor (8); and a controller (11) that controls the first variable throttle valve (6), the second variable throttle valve (7), and the motor (8). The controller (11) determines a target aperture coefficient of the second variable throttle valve (7) at which the operating point of the motor (8) is placed on a straight line of maximum regeneration efficiency on the basis of the rotation speed of the motor (8) and the thrust of the hydraulic cylinder (1), and the controller controls the second variable throttle valve (7).

IPC Classes  ?

• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements
• F15B 21/14 - Energy-recuperation means

Abstract

This cylinder device (1) comprises: a cylinder (2); a rod (3); a piston (4) that demarcates the inside of the cylinder (2) into a rod-side room (R1) and a piston-side room (R2); a reservoir room (R) that stores a liquid; an attenuation passage (5) that communicates the rod-side room (R1) and the piston-side room (R2), and applies resistance to a flow of liquid passing therethrough; a pressure-side attenuation path (6) that applies resistance to the flow of liquid from the piston-side room (R2) to the reservoir room (R); an extension-side suction passage (7) that allows only a flow of liquid from the reservoir room (R) to the rod-side room (R1); a pressure-side suction passage (8) that allows only a flow of liquid from the reservoir room (R) to the piston-side room (R2); a pump flow path (9) communicating the rod-side room (R1) and the piston-side room (R2) in parallel with the attenuation passage (5); a pump (10) midway on the pump flow path (9); and a motor (11) that drives the pump (10).

IPC Classes  ?

• F16F 9/34 - Special valve constructions; Shape or construction of throttling passages
• F16F 9/50 - Special means providing automatic damping adjustment

Abstract

To provide a lubricant composition for shock absorbers, a shock absorber, and a method for adjusting the friction of a lubricant composition for shock absorbers, each capable of satisfying both operational stability and ride comfort particularly at the time of a minute amplitude. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent, wherein the friction adjusting agent contains a pentaerythritol ester, the pentaerythritol ester contains a pentaerythritol tetraester at the highest proportion or in an amount of 50 mass % or more, and the pentaerythritol ester content is 0.5 mass % or more.

IPC Classes  ?

• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• C10M 125/24 - Compounds containing phosphorus, arsenic or antimony
• C10M 129/74 - Esters of polyhydroxy compounds

Abstract

A spool displacement detection device (100) detects the displacement amount of a spool (53) of a fluid pressure valve device (50) that includes: an access hole (52) formed in a housing (51); and a spool (53) housed slidably in the access hole (52). The spool displacement detection device comprises: a rod (60) one end of which is supported by the spool (53); a cap (70) that is mounted in an opening of the access hole (52) with respect to an end surface (51a) of the housing (51); a magnet (65) provided to the rod (60); and a detection unit (80) that detects a change in a magnetic field accompanying the displacement of the magnet (65). The cap (70) has formed therein an insertion hole (71) into which the rod (60) is inserted in a displacement direction so as to freely reciprocate and through which a fluid for energizing the spool (53) is guided. A detection unit (80) is attached to an outer peripheral surface (70c) of the cap (70).

IPC Classes  ?

• G01B 7/00 - Measuring arrangements characterised by the use of electric or magnetic techniques
• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given

Goods & Services

Synthetic materials for absorbing oil; chemical preparations for use in industry; industrial chemicals; fluids for hydraulic circuits; liquids for hydraulic circuits; hydraulic oils; hydraulic fluids; power steering fluid; brake fluid; transmission fluid; transmission oil. Solid lubricants; fuel; lubricating grease; lubricating oil; shock absorber oil; gear oils; penetrating oils; moistening oil; mineral oils and greases for industrial purposes [not for fuel]; industrial oil; automotive lubricants; lubricants; non-mineral oils for industrial purposes; non-mineral greases for industrial purposes. Cutter loaders; coal-cutting machines; coal loaders; rock drills; diggers [machines]; extractors for mines; mining machines and apparatus; mechanical shovels; excavating machines; truck cranes; concrete mixers; cranes; conveyors [machines]; belts for conveyors; cargo handling machines; mobile cranes; hydraulic jacks; pneumatic jacks; jacks [machines]; winches; cranes [lifting and hoisting apparatus]; loading and unloading machines; car lifts; lifting apparatus; electric welding machines; electric welding apparatus; electric arc welding apparatus; impact wrenches; buffers [power driven, hand-held]; metalworking machines; molds [parts of machines]; grinding machines; metal cutting machines; foundry machines; mixing machines; agitators; crushing machines; disintegrators; reapers; cultivators [machines]; harvesting machines; sowers [machines]; raking machines; painting machines; colour-washing machines; cylinders for machines; grease rings [parts of machines]; piston rings; piston segments; pistons [parts of machines or engines]; connecting rods for machines, motors and engines; hydraulic controls for motors and engines; sealing joints [parts of engines]; cylinders for motors and engines; motors other than for land vehicles; engine cylinders for land vehicles; pumps for land vehicle engines; fuel pumps for land vehicle engines; rotary pumps; hydraulic pumps; oil pumps with electric motors; oil pumps; pumps [machines]; pumps [parts of machines, engines or motors]; pumps; compressors [machines]; ball joints [machine elements], other than for land vehicles; axles for machines; journals [parts of machines]; transmission shafts, other than for land vehicles; bearings [parts of machines]; bearings for transmission; shaft couplings [machines]; hydraulic actuators, other than for land vehicles; hydraulic cylinders [parts of machines]; hydraulic motors; electric cylinders, other than for land vehicles; reduction gears, other than for land vehicles; speed change gears, other than for land vehicles; gear boxes, other than for land vehicles; gears, other than for land vehicles; torque converters, other than for land vehicles; pulleys; transmissions for machines; transmission mechanisms, other than for land vehicles; machine wheelwork; hydraulic torque converters, other than for land vehicles; pneumatic or hydraulic linear actuators, other than for land vehicles; machine couplings and transmission components for machines; shock absorbers for machines; shock absorber plungers [parts of machines]; springs [parts of machines]; springs, machine elements not for land vehicles; brake pads, other than for vehicles; brakes for machines; valves [parts of pumps]; valves [parts of machines]; hydraulic valves being parts of machines; pneumatic door openers; pneumatic door closers; electric door openers; electric door closers; hydraulic door openers; hydraulic door closers; electric motors and parts thereof, other than for land vehicles. Electric motors for land vehicles; engines for land vehicles; motors for land vehicles; pneumatic or hydraulic linear actuators for land vehicles; reduction gears for land vehicles; speed change gears for land vehicles; hydraulic cylinders for land vehicles; hydraulic motors for land vehicles; electric cylinders for land vehicles; steering units for land vehicles; power steering apparatus and their parts for automobiles; steering drives for railway rolling stock; pumps for power steering apparatus; parts of steering units for land vehicles; rack ends; tie rod ends; stabilizer links; ball joints; pitman arms; idler arms; center links; cross rods; side rods; inner shafts; drag links; transmission mechanisms for land vehicles; transmissions for land vehicles; gearing for land vehicles; shift actuators for vehicle transfer cases; motors for vehicle transfer-cases; transmission components for land vehicles; hydraulic circuits for vehicles; transmission shafts for land vehicles; connecting rods for land vehicles, other than parts of motors and engines; drive chains for two-wheeled vehicles; suspension systems for vehicles; shock absorbers for vehicles; suspension shock absorbers for vehicles; vehicle suspension springs; shock absorbing springs for vehicles; suspension systems for land vehicles; shock absorbers for land vehicles; suspension shock absorbers for land vehicles; suspension springs for land vehicles; shock absorbing springs for land vehicles; suspension systems for automobiles; shock absorbers for automobiles; suspension shock absorbers for automobiles; suspension springs for automobiles; shock absorbing springs for automobiles; electronic control suspension systems for two wheeled motor vehicles; electronic control suspension systems for snowmobiles; electronic control suspension systems for vehicles; buffers for railway rolling stock; shock absorbers for motorcycles; shock absorbers for bicycles; shock absorbing springs for motorcycles and bicycles; leveling valves for railway rolling stock; leveling valves for automobiles; leveling valves for land vehicles; axles for vehicles; axle journals; axle bearings for land vehicles; wheel bearings for land vehicles; shaft couplings for land vehicles; brake valves for vehicles; brake valves; disc brakes for vehicles; brake discs for vehicles; brake pads for vehicles; brake cylinders for vehicles; brakes for vehicles; brake cylinders for land vehicles; parachutes; anti-theft alarms for vehicles; anti-theft devices for vehicles; wheelchairs; hatch covers for ships; ships; water vehicles; boats; structural parts for boats; davits for boats; aeroplanes; landing gear for aircraft; landing gear wheels for aircraft; oil hydraulic system components for aircraft; flight control gears; structural parts for helicopters; structural parts for aircraft; rolling stock for railways; railway coupling; structural parts for trains; automobiles; camping cars; lorries; luggage truck; trucks; dump trucks; concrete mixing vehicles; snowmobiles; tractors; elevating tailgates [parts of land vehicles]; tailboard lifts [parts of land vehicles]; structural parts for automobiles; structural parts for buses; structural parts for trucks; clutches for land vehicles; two-wheeled motor vehicles; bicycles; front forks for two-wheeled vehicles and their parts; bicycle forks and their parts; tricycle.

Abstract

A fluid state detection sensor includes: an electrical conductivity calculation unit having an electrical conductivity calculation part configured to calculate an electrical conductivity of a fluid from a voltage value acquired in a first voltage acquisition part; and a relative dielectric constant calculation unit having a relative dielectric constant calculation part configured to calculate a relative dielectric constant of the fluid from a voltage value acquired in a second voltage acquisition part, wherein the first voltage acquisition part acquires an inter-electrode voltage value after a predetermined time period after a switching part above a connection target of a pair of electrodes to the electrical conductivity calculation unit, and the second voltage acquisition part acquires the inter-electrode voltage value after the predetermined time period after the switching part switched the connection target of the pair of electrodes to the relative dielectric constant calculation unit.

IPC Classes  ?

• G01N 27/07 - Construction of measuring vessels; Electrodes therefor
• G01N 27/08 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid which is flowing continuously
• G01N 33/28 - Oils

Abstract

A liquid state detection sensor includes: an electrode part, the electrode part having a pair of electrodes provided so as to be opposed to each other; a voltage value acquisition time period setting unit configured to set a voltage value acquisition time period, the voltage value acquisition time period being a length of a time period during which an inter-electrode voltage value of the pair of electrodes of the electrode part is acquired; a voltage value acquisition unit configured to acquire the inter-electrode voltage value in the voltage value acquisition time period; and an electrical conductivity calculation unit configured to calculate an electrical conductivity of the liquid on the basis of, among the inter-electrode voltage value acquired by the voltage value acquisition unit, the inter-electrode voltage value acquired after a predetermined time period has elapsed since a start of the voltage value acquisition time period.

IPC Classes  ?

• G01N 27/07 - Construction of measuring vessels; Electrodes therefor

Abstract

A shock absorber according to the present invention includes: a cylinder, a rod movably inserted into the cylinder, and a partition member having a disk shape and inserted into the cylinder to partition an inside of the cylinder into two working chambers, in which the partition member includes a plurality of ports that communicates the working chambers with each other, and a choke passage having a portion communicating the working chambers with each other and passing through an inner peripheral side or an outer peripheral side of each port along a circumferential direction.

IPC Classes  ?

• F16F 9/34 - Special valve constructions; Shape or construction of throttling passages

Abstract

A valve of the present invention includes: a valve seat member that has a port, an annular window which communicates with an outlet end of the port, an inner-circumferential valve seat provided on an inner-circumferential side of the annular window, and an outer-circumferential valve seat of the annular window; a first valve body that are stacked on a valve seat member, that can seat on or come off the outer-circumferential valve seat to open or close the annular window, and that has a hole; a second valve body that is contained in the annular window so as to be movable in an axial direction and that closes the hole when abutting on a valve seat member side surface of the first valve body; a second valve body biasing member that is contained in the annular window and that biases the second valve body toward the first valve body; a regulating portion that restricts a movement of the second valve body in a direction in which the second valve body moves away from the first valve body; and a communication passage that secures communication between the hole and the port even when the second valve body abuts on the regulating portion.

IPC Classes  ?

• F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
• F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
• F16K 15/14 - Check valves with flexible valve members

Abstract

A manufacturing method of a resin molded member includes: an insert member molding step of building an insert member by stacking layers of a base resin containing continuous fibers by using a 3D printer; an aligning step of aligning the insert member in a cavity of an injection molding mold; and a resin portion molding step of molding a resin portion integrated with the insert member by filling an injection molding resin into the cavity, wherein the insert member is arranged on a surface of a weld portion by the resin portion molding step, and the continuous fibers in the insert member are oriented in direction crossing over the weld portion, the weld portion being formed in the resin portion.

IPC Classes  ?

• 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

Abstract

A front fork (1) according to the present invention includes: a fork main body (2) including a vehicle body side tube (3) and an axle side tube (4); a cap body (5) attached to a vehicle body side tube (3); a cylinder (6) provided in the axle side tube (4); a cylindrical rod (7) axially movably inserted into the cylinder (6); an electric device (8) housed in the cylinder (6); and a wire (9) that is inserted into the rod (7), passes through the cap (C), and is drawn out from the fork main body (2) and is connected to the electric device (8), in which the connection tube (13b) and the rod (7) in the cap (C) are connected by a connection nut (27) that is rotatably mounted on an outer circumference of one of the connection tube (13b) and the rod (7) and is restricted in movement in the axial direction toward the other, and screwed to the other.

IPC Classes  ?

• B62K 25/08 - Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms for front wheel
• F16F 13/00 - Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
• F16B 7/18 - Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements

Abstract

11) that is formed by a detection electrode (21) and a ground electrode immersed in a fluid are electrically connected to each other, an excitation signal oscillation unit (3102) that excites the resonance circuit (8) with an excitation signal having a prescribed oscillation frequency, and a control unit (3112) that controls the oscillation frequency so that the phase difference between the excitation signal and the output signal of the resonance circuit (8) maintains a prescribed phase difference, and the present invention detects a characteristic of a fluid from a change in the oscillation frequency.

IPC Classes  ?

• G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
• G01N 27/00 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
• G01N 27/06 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid

Abstract

This shock absorber (1) comprises: a shock absorber body (2) having a cylinder (6) that is connected to an unsprung member (W) of a vehicle (V), and a rod (8) that is connected to a sprung member (B) of the vehicle (V), the rod (8) being capable of moving relative to the cylinder (6) by exiting and entering the cylinder (6); a damping force adjustment device (3) that is capable of adjusting damping force generated when the shock absorber body (2) expands and contracts in accordance with the amount of current supplied; and a current control unit (5) that is attached to the cylinder (6), the current control unit (5) supplying a current to the damping force adjustment device (3) on the basis of a control command received from a control device (4) installed in the vehicle (V), the current control unit (5) being provided with an unsprung acceleration rate sensor (5c).

IPC Classes  ?

• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• F16F 9/46 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details such means combined with temperature correction allowing control from a distance

Abstract

The present invention maintains the normal operation of a vehicle even if noise is superimposed on a power supply voltage and suppresses the increase in the size of a device. A power supply control circuit 1a includes: input terminals T21, T22 to which a DC power supply can be connected; a power supply line that supplies power from the input terminals to a next-stage circuit; a coil L400 provided in the power supply line; a first capacitor C400 connected between the input terminal side of the coil L400 and the ground line for the power supply line; a second capacitor C401 connected between the next-stage circuit side of the coil L400 and the ground line; a switch element Q303 that is connected in series with the power supply line and turns on or off the supply of power to the next-stage circuit; a monitoring circuit U310 that turns off the switch element Q303 when the voltage or current of the power supply line exceeds a threshold value; and a semiconductor element including a diode connected in parallel with the coil such that the cathode faces the previous-stage side of the coil L400 and the anode faces the next-stage side of the coil.

IPC Classes  ?

• H02J 1/00 - Circuit arrangements for dc mains or dc distribution networks
• H02H 3/10 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current additionally responsive to some other abnormal electrical conditions
• H02H 3/20 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess voltage
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

A vane pump (100) is provided with a body-side side plate (30) and a cover-side side plate (40). The body-side side plate (30) comprises a plurality of first back pressure grooves (34) each of which is opened on a first slide-contact surface (30a), with which a rotor (2) is brought into slide contact, and is in communication with a back pressure chamber (5), the plurality of first back pressure grooves (34) being provided spaced apart from each other in a circumferential direction of the rotor (2). The cover-side side plate (40) comprises: a plurality of second back pressure grooves (44) each of which is opened on a second slide-contact surface (40a), with which the rotor (2) is brought into slide contact, and is in communication with the back pressure chamber, the number of the plurality of second back pressure grooves (44) being the same as the plurality of first back pressure grooves (34); and a communication groove (45) providing communication between a plurality of the second back pressure grooves (44) that are provided opened on the second slide-contact surface (40a) and that are adjacent to each other in the circumferential direction. The opening of each of the plurality of first back pressure grooves (34) that are opened on the first slide-contact surface (30a) has a larger opening area than the opening of each of the plurality of second back pressure grooves (44) that are opened on the second slide-contact surface (40a).

IPC Classes  ?

• F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
• F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

A stroke sensor for detecting a stroke quantity of a front fork (F) having a tube member (10) that has an outer tube (1) and an inner tube (2) inserted into the outer tube (1) and capable of moving in the axial direction of the outer tube (1), and is mounted between the vehicle body (B) and a wheel (W) of a vehicle (V), said stroke sensor comprising: a body to be detected (3) that is provided to the outer circumference of the outer tube (1); and a sensor body (4) that is provided outward from the tube member (10), can move together with the inner tube (2) in the axial direction relative to the outer tube (1), and senses the body to be detected (3).

IPC Classes  ?

• B62J 45/423 - Sensor arrangements; Mounting thereof characterised by mounting on or besides the wheel
• B62K 25/08 - Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms for front wheel

Abstract

A damping valve (1) according to the present invention includes: a valve seat member (2) provided with an annular recess portion (2d), a port (2c) that opens to a bottom portion (2d1) of the recess portion (2d), an annular valve seat (2e) that rises from the outer circumferential of the recess portion (2d), and an opposing portion (2f) that is annular and has an inner circumferential surface facing the recessed portion (2d); a sub-valve (3) that is disposed within the recess portion (2d) so as to be separated from the bottom portion (2d1) of the recess portion (2d), forms an annular gap (P) between the outer circumferential surface and the opposing portion (2f), and, with the outer circumferential side serving as a free end, is allowed to deflect in a direction away from the valve seat member (2) within the recess portion (2d); and an annular leaf valve (4) that is layered so as to be separated in an axial direction on the side, of the sub-valve (3), opposite to the valve seat member), and, with the outer circumferential side serving as a free end, is allowed to deflect so as to be seated in or separated from the valve seat (2e).

IPC Classes  ?

• F16F 9/34 - Special valve constructions; Shape or construction of throttling passages
• F16F 9/508 - Means responsive to the velocity of movement of the piston

Abstract

A vane pump (100) is provided with a cam ring (4) and a body-side lateral plate (30) that is provided in contact with one lateral surface of the cam ring (4). The body-side lateral plate (30) has a first back pressure groove (34) that is in communication with a back pressure room (5) in suction regions (42a, 42c) in which the capacity of a pump room (6) expands. The first back pressure groove (34) has a high-pressure groove (34a) that guides a working fluid to the back pressure room (5), and a low-pressure groove (34b) that guides a working fluid having a pressure lower than that of the working fluid guided by the high-pressure groove (34a) to the back pressure room (5) while guiding the working fluid to the back pressure room (5) on a side closer to a front side in a rotating direction of a rotor (2) than the back pressure room (5) to which the high-pressure groove (34a) guides the working fluid. The working fluid is selectively guided to the back pressure chamber (5) from the high-pressure groove (34a) or the low-pressure groove (34b) as the rotor (2) rotates.

IPC Classes  ?

• F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
• F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member

Abstract

A front fork (1) of the present invention includes: a fork main body (2) having a vehicle body side tube (3) and an axle side tube (4); a cap (5) placed in the vehicle body side tube (3); a cylinder (6) provided inside the axle side tube (4); a rod (7) inserted into the cylinder (6) so as to be movable in an axial direction; an electric device (6) mounted inside the cylinder (6); an electric wire (9) connected to the electric device (8); a suspension spring (10) biasing the fork main body (2) in an extending direction, and an adjuster (11) capable of adjusting a support position of a spring seat (12). The electric wire (9) is drawn from the cap (5) at a position misaligned from an axial center line of the fork main body (2) to an outside of the fork main body (2). An operational portion (17) of the adjuster (11) is provided in the cap (5) at a position misaligned from the axial center line (A).

IPC Classes  ?

• B62K 25/08 - Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms for front wheel
• F16F 13/00 - Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs

Abstract

An electrical component unit (1) comprises: an electrical component (2); and a bracket (10) having a seat section (11) that is attached to a shock absorber (D) serving as an installation target of the electrical component (2), and a retention section (12) that stands upright from the seat section (11) and retains the electrical component (2). The retention section (12) has a recess (15) that accommodates at least a section of the electrical component (2), and a first retention piece (13) and a second retention piece (14) that are facing with the recess (15) interposed therebetween. The electrical component (2) has a first anchor piece (4) that is anchored to the first retention piece (13), and a second anchor piece (5) that is anchored to the second retention piece (14).

IPC Classes  ?

• H05K 5/02 - Casings, cabinets or drawers for electric apparatus - Details
• B60G 17/08 - Characteristics of fluid dampers

Abstract

An electronic component unit (1) comprises: a substrate (2) on which an electronic component (3) is mounted; a bracket (10) which includes a base (11), two or more holder sections (12a, 12b) one end of which is continuous with the base (11) and which hold the substrate (2) at the other end thereof to dispose the substrate (2) in a spaced-apart position with respect to the base (11), the bracket (10) further including a front mounting section (13) and a rear mounting section (14) respectively protruding from the front and rear of the base (11) forwardly and rearwardly of the base (11); and a resin case (17) encapsulating the substrate (2), the base (11), and the holder sections (12a, 12b). The front mounting section (13) and the rear mounting section (14) protrude outside the resin case (17).

IPC Classes  ?

• H05K 5/00 - Casings, cabinets or drawers for electric apparatus
• B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric
• H05K 7/14 - Mounting supporting structure in casing or on frame or rack

Abstract

A control valve (101) comprises a solenoid proportional valve-equipped cap (100) that has a pilot cap (10) including: a primary pressure passage (41) that guides a working fluid at a primary pressure to the solenoid proportional valve; a secondary pressure passage that guides the working fluid, which has been pressure-reduced to a secondary pressure by the solenoid proportional valve, to a pilot chamber; and a drain passage that discharges the working fluid discharged from the solenoid proportional valve (50). A valve housing (102) of the control valve (101) has: a primary pressure confluence passage (30) that establishes mutual communication with the primary pressure passage (41) in the cap (100) fitted with solenoid proportional valve; and a drain confluence passage that establishes mutual communication with the drain passage in the cap (100) fitted with solenoid proportional valve. The primary pressure confluence passage (30) supplies hydraulic fluid of a pump through a supply port (21) provided to the valve housing (102). A discharge port, which is provided to the valve housing (102) and which communicates with a tank, communicates with the drain passage.

IPC Classes  ?

• F16K 27/00 - Construction of housings; Use of materials therefor
• F15B 11/00 - Servomotor systems without provision for follow-up action
• F16K 11/07 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
• F16K 27/04 - Construction of housings; Use of materials therefor of sliding valves
• F16K 31/42 - Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor

Abstract

A sealing device for hydraulic equipment according to the invention includes an outer member having an annular shape, an inner member inserted into the outer member, and a seal ring housed in an annular groove disposed in the outer circumference of the inner member and abutting on the outer member to prevent a liquid from passing through a gap between the outer member and the inner member. The annular groove of the inner member has a bottom portion including a recess for restraining axial displacement of the seal ring relative to the annular groove.

IPC Classes  ?

• F16F 9/36 - Special sealings, including sealings or guides for piston-rods
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
• F16F 9/512 - Means responsive to load action on the damper or fluid pressure in the damper
• F16J 15/16 - Sealings between relatively-moving surfaces
• F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

Abstract

A cylindrical linear motor (1) of the present invention is provided with: a core (7) having a cylindrical yoke (7a) and a plurality of salient poles (7b) and formed of a magnetic body, said salient poles (7b) being annular and provided by being arranged along the axial direction on either the inner circumference or the outer circumference of the yoke (7a); and a plurality of permanent magnets (6a, 6b) that are annular and attached to the core (7) such that N-pole and S-pole alternately appear in the axial direction. The cylindrical linear motor (1) also comprises: a core assembly body (5) in which a section-with-magnet (S1) in which the permanent magnets (6a, 6b) are installed and a section-without-magnet (S2, S3) in which the salient poles (7b, 7b) are provided but the permanent magnets (6a, 6b) are not installed are provided; and an armature (2) having a plurality of windings (4) that are disposed on the salient pole (7b) side of the inner circumference or the outer circumference of the core assembly body (5), relatively movable with respect to the core assembly body (5) in the axial direction, provided side by side in the axial direction of the core assembly body (5), and face the core assembly body (5) in the radial direction.

IPC Classes  ?

• H02K 41/03 - Synchronous motors; Motors moving step by step; Reluctance motors

Abstract

A shock absorber in the present invention includes: a cylinder; a rod guide fitted to the inner circumference of an end portion of the cylinder; a piston rod movably inserted into the cylinder; a piston connected to the piston rod; and a seal member stacked on the rod guide and through which the piston rod is inserted, wherein the seal member includes: an annular seal case having an annular concave portion on the inner circumference; a seal ring including a base portion and a lip and accommodated in the annular concave portion; an annular seal holder stacked on the rod guide side of the base portion, accommodated in the annular concave portion, and supporting the outer circumference of the seal ring to suppress the diameter enlargement of the lip; and a stopper mounted on the seal case and preventing the seal holder and the seal ring from falling off.

IPC Classes  ?

• F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder
• F16F 9/36 - Special sealings, including sealings or guides for piston-rods
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details

Abstract

An arithmetic device includes a communication unit that communicates with another instrument, a first activation unit to which a first address is set, and a second activation unit to which a second address is set and at which a computer program can be updated by the first activation unit. When having determined that information of update that can be performed by the first activation unit is included in information acquired by the communication unit, the second activation unit transmits the second address to the first activation unit. When having received the second address from the second activation unit, the first activation unit changes the first address to the second address, establishes communication with the other instrument based on the second address, and performs update at the second activation unit based on update information transmitted from the other instrument.

IPC Classes  ?

• G06F 9/4401 - Bootstrapping

Abstract

An object of the present invention is to provide a shock absorber that can use a single bracket regardless of difference in thickness of a knuckle bracket. A shock absorber according to the present invention includes: a shock absorber main body having an outer shell and a rod movably inserted into the outer shell; a knuckle bracket attached to an outer circumference on a bottom end side of the outer shell; and a bracket including a curved piece curved along a circumferential direction of an outer circumference of the outer shell and an attachment piece extending from the curved piece and to which a mounting component is attached, the curved piece including a bracket attached to the outer shell by being welded to the outer circumference of the outer shell and within a range from a top end to a bottom end of the knuckle bracket in an axial direction of the outer shell.

IPC Classes  ?

• B60G 13/00 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers
• B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic

Abstract

A neutral return mechanism includes an interlocking shaft to be pushed and pulled in an axial direction in conjunction with a swinging operation of an operation member; a housing member to support the interlocking shaft such that the interlocking shaft is movable in the axial direction and accommodate the interlocking shaft such that one of opposite end portions thereof protrudes; a neutral return spring to return the interlocking shaft from a post-movement position to an initial position, the neutral return spring being accommodated in the housing member such that the neutral return spring extends in the axial direction of the interlocking shaft, wherein the housing member includes a supported portion between a spring accommodation portion in which the neutral return spring is accommodated and a protrusion opening through which the interlocking shaft protrudes, the supported portion being supported at a bracket member.

IPC Classes  ?

• 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
• G05G 5/05 - Means for returning or tending to return controlling members to an inoperative or neutral position, e.g. by providing return springs or resilient end-stops

Abstract

Provided are a lubricant composition for shock absorbers, a lubricant additive, and a method of adjusting frictional property of a lubricant composition for shock absorbers, each capable of satisfying both the steering stability and ride comfort. The lubricant composition for shock absorbers contains a base oil and pentaerythritol esters and having frictional property represented by the following formula (1): Provided are a lubricant composition for shock absorbers, a lubricant additive, and a method of adjusting frictional property of a lubricant composition for shock absorbers, each capable of satisfying both the steering stability and ride comfort. The lubricant composition for shock absorbers contains a base oil and pentaerythritol esters and having frictional property represented by the following formula (1): RI > 1 .75 × F ave -   0 .05 ­­­(1) Provided are a lubricant composition for shock absorbers, a lubricant additive, and a method of adjusting frictional property of a lubricant composition for shock absorbers, each capable of satisfying both the steering stability and ride comfort. The lubricant composition for shock absorbers contains a base oil and pentaerythritol esters and having frictional property represented by the following formula (1): RI > 1 .75 × F ave -   0 .05 ­­­(1) supposing that a ratio ({Fsa - Fave} / Fave) of a difference, at the time of minute amplitude, between a peak frictional force Fsa in transition from a stationary state to a sliding state and an average frictional force Fave to the average frictional force Fave at the time of minute amplitude is responsiveness RI.

IPC Classes  ?

• C10M 129/74 - Esters of polyhydroxy compounds
• C10M 169/04 - Mixtures of base-materials and additives
• C10M 129/76 - Esters containing free hydroxy or carboxyl groups

Abstract

A valve includes: a seat member having a supply passage through which working fluid is supplied; a valve body configured to be seated onto an annular seat portion of the seat member, the valve body being configured to close the supply passage; and a spring serving as a biasing member configured to bias the valve body towards the seat portion, wherein the valve body receives a biasing force from the spring, the biasing force containing a force component in the direction perpendicular to the center axis of the seat portion.

IPC Classes  ?

• F16K 29/00 - Arrangements for movement of valve members other than for opening or closing the valve, e.g. for grinding-in, for preventing sticking
• F16K 1/38 - Valve members of conical shape

Abstract

An internal gear pump (1) according to the present invention is equipped with: a case (2); an outer rotor (3) which is ring-shaped, has internal teeth (3a) provided along the inner circumference thereof and external teeth (3b) provided along the outer circumference thereof, and is housed inside the case (2) so as to be capable of rotating in the circumferential direction; an inner rotor (4) which is housed inside the case (2), is inserted on the inner-circumferential side of the outer rotor (3), and comprises an external gear which meshes with the outer rotor (3); a drive gear (5) which meshes with the external teeth (3b) of the outer rotor (3); and a motor (6) which drives the drive gear (5). This internal gear pump (1) is characterized in that there are fewer teeth on the drive gear (5) than there are external teeth (3b) on the outer rotor (3).

IPC Classes  ?

• F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
• F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
• F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein

Abstract

This internal gear pump (1) comprises: a case (2) that has a pump chamber (7a1); an outer rotor (3) that is ring-shaped, has internal teeth (3a) on the inner circumference thereof, and is accommodated in the pump chamber (7a1); an inner rotor (4) that is accommodated in the pump chamber (7a1), is inserted on the inner circumferential side of the outer rotor (3), and has external teeth (4a) that engage with the outer rotor (3); and a motor (5) that drives the inner rotor (4) to revolve and rotate inside of the outer rotor (3).

IPC Classes  ?

• F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
• F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
• F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein

Abstract

An inspection equipment condition monitoring system (100) comprises: a fluid property sensor (10) for detecting a property of an inspection fluid, the fluid property sensor (10) being provided in inspection equipment (5) which performs an inspection by supplying and discharging the inspection fluid to and from a hydraulic cylinder (1) that is being inspected and that is sequentially replaced, thereby causing the hydraulic cylinder (1) to operate; a replacement timing acquisition unit (33) for acquiring a timing at which the hydraulic cylinder (1) was replaced; and an identifying unit (34) which, if a detected value from the fluid property sensor (10) has changed so as to exceed a prescribed value, identifies the hydraulic cylinder (1) corresponding to the time of the change on the basis of a result acquired by the replacement timing acquisition unit (33).

IPC Classes  ?

• G01N 27/00 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
• G01N 1/00 - Sampling; Preparing specimens for investigation
• G01N 27/06 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
• G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
• G05B 23/02 - Electric testing or monitoring

Abstract

Provided is a fluid properties monitoring system (100) comprising an information processing unit (30) that receives input of a detection value of a fluid properties sensor (10), which is attached to a fluid compressor (1) and detects the properties of fluid, and maintenance information input by an operator and including the state of the fluid compressor (1), wherein the information processing unit (30) detects an abnormal detection value by comparing the detection value with an abnormality determination value set on the basis of the maintenance information.

IPC Classes  ?

• G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
• G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
• G01N 27/06 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid

Abstract

The present invention minutely ascertains the road surface condition on a per-position basis. This computation device includes: a position information acquisition unit that acquires position information regarding a position sensor (10A) installed in a vehicle (10) traveling on a road, said position information having been detected by the position sensor (10A); a relationship information acquisition unit that acquires relationship information indicating the positional relationship between the position of the position sensor (10A) of the vehicle (10) and the position of a vehicle wheel (TR) of the vehicle (10); and a vehicle wheel position calculation unit that, on the basis of the position information regarding the position sensor (10A) and the relationship information, calculates position information regarding the vehicle wheel (TR).

IPC Classes  ?

• 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
• G06N 20/00 - Machine learning
• G06N 3/02 - Neural networks

Abstract

An electric pump system (100) equipped with a pump (10), the discharge flow of which is controlled according to the aperture of a solenoid valve (40), the operation of which is controlled by the conduction of electricity thereto, an electric motor (50) for driving the pump (10), and a control device (60) for controlling operation of the electric motor (50) and the solenoid valve (40) for the pump (10) on the basis of the requested pump (10) discharge flow or a command signal which expresses discharge pressure, wherein the control device (60) adjusts operation of the solenoid valve (40) and the electric motor (50) when determination conditions are satisfied for determining whether or not prescribed vibrations are produced in the electric pump system (100) or in a CVT (2).

IPC Classes  ?

• F04B 49/10 - Other safety measures
• F04B 49/22 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by means of valves

Abstract

This shock absorber (SA) with a vehicle height-adjusting function comprises: a shock absorber body (D) having a cylinder (30), a piston (31) that is inserted into the cylinder (30) so as to be movable in the axial direction and divides the inside of the cylinder (30) into an extension-side chamber (R1) and a compression-side chamber (R2), a piston rod (32) that is inserted into the extension-side chamber (R1), is movable in the axial direction relative to the cylinder (30), and is connected to the piston (31), and an outer tube (33) that covers the cylinder (30); a pump (1); and a partitioning member (2) dividing an annular gap between the cylinder (30) and the outer tube (33) into a tank (T) that contains a fluid, and a reservoir chamber (R) that is in communication with the compression-side chamber (R2) and compensates for the volume of the piston rod (32) going in and out within the cylinder (30). The pump (1) is installed on the partitioning member (2), and the pump (1) allows the fluid to be supplied to and discharged from within the cylinder (30) via the reservoir chamber (R).

IPC Classes  ?

• B60G 17/08 - Characteristics of fluid dampers
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• F16F 9/56 - Means for adjusting the length of, or for locking, the spring or damper, e.g. at the end of the stroke

Abstract

Provided is a manufacturing method for a sliding member that includes a sliding component (10) and a non-sliding component (20), wherein the method comprises: a step for forming a film on the sliding component (10) by carrying out salt-bath soft nitriding on the surface thereof; a step for removing the film on a welding section (11) of the sliding component (10); and a step for welding the non-sliding component (20) which was not subjected to salt-bath soft nitriding and the welding section (11) of the sliding component (10).

IPC Classes  ?

• B23K 11/14 - Projection welding
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• F16F 9/54 - Arrangements for attachment

Abstract

The present invention provides a method for producing a trivalent chromium plated component (100) that is obtained by forming a trivalent chromium plating film (3) on a sliding component of a device in which a fluid is sealed, the method comprising: a step in which a trivalent chromium plating film (3) is formed on a steel base material (1) or on a base plating film (2) that is formed on the surface of the steel base material (1); a step in which an external force is applied to the trivalent chromium plating film (3); and a step in which the trivalent chromium plating film (3) is subjected to baking after the application of the external force.

IPC Classes  ?

• C25D 5/48 - After-treatment of electroplated surfaces
• C25D 3/06 - Electroplating; Baths therefor from solutions of chromium from solutions of trivalent chromium
• C25D 5/26 - Electroplating of metal surfaces to which a coating cannot readily be applied of iron or steel surfaces
• C25D 7/00 - Electroplating characterised by the article coated

Abstract

In the present invention, a positional relationship to a subject visible in an image is easily detected. This position estimation device 10 includes an area detection unit 21 that detects a target area including a subject from captured image data, a distance detection unit 22 that detects depth information pertaining to a range visible in a captured image, and an area distance acquisition unit 23 that acquires information pertaining to the distance to the target area on the basis of the depth information, wherein: the area detection unit 21 detects a first target area including a first subject and a second target area including a second subject; and the position estimation device 10 further includes an assessment unit 24 that assesses whether the first target area and the second target area are on the same perpendicular in the image and whether the difference between the depth of the first target area and the depth of the second target area is included in a prescribed range in the depth information.

IPC Classes  ?

• G06T 7/00 - Image analysis
• G06T 7/11 - Region-based segmentation
• G01B 11/00 - Measuring arrangements characterised by the use of optical techniques

Abstract

Provided is a shift actuator (100) comprising a first speed reduction mechanism (31) and a second speed reduction mechanism (32) which reduce the speed of the rotation of a rotation shaft (1a) and output the rotation reduced in speed and an angle detection mechanism (4) which detects the rotation angle of an output shaft 2. The first speed reduction mechanism (31) includes a worm gear (31a) fixed to the rotation shaft (1a) and a worm wheel (31b) which meshes with the worm gear (31a) and is supported by a shaft (5). The angle detection mechanism (4) includes a spur gear (41) which rotates integrally with the output shaft (2), a spur gear (42) which meshes with the spur gear (41) and is supported by the shaft (5), a magnet (43) which rotates integrally with the spur gear (42), and an angle sensor (44) which is provided so as to oppose the magnet (43).

IPC Classes  ?

• B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
• F16H 1/06 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
• F16H 1/16 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel

Abstract

A second case (20) is produced using: a first core (51) that is for forming valve ports (P1, P2) of a counterbalance valve (C) and a first accommodation hole (21) that is to accommodate a spool of the counterbalance valve (C); and a second core (52) that is for forming first and second supply/exhaust ports (23, 24) that are to connect to the valve ports (P1, P2) of the counterbalance valve (C) and open at a flat surface (25) that is opposite a cylinder block (3).

IPC Classes  ?

• B22C 9/10 - Cores; Manufacture or installation of cores
• B22C 9/24 - Moulds for peculiarly-shaped castings for hollow articles
• F03C 1/253 - Reciprocating-piston liquid engines with movable cylinders in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders with cylinder axes generally coaxial with, or parallel to, main shaft axis

Abstract

The present invention minutely ascertains the road surface condition on a per-position basis. This computation device includes: a road surface information acquisition unit that acquires, per road surface position on a road R, road surface height information indicating the height position of the road surface of the road R in the vertical direction; an IRI calculation unit that, on the basis of the road surface height information per road surface position, calculates the IRI in a first section (S1) of a unit distance on the road (R), and the IRI in a second section (S2) of a length longer than said unit distance but less than twice said unit distance; and a road surface condition calculation unit that, on the basis of the IRI in the first section (S1) and the IRI in the second section (S2), calculates the IRI in a non-overlapping section (S3) that is in the second section (S2) and does not overlap with the first section (S1).

IPC Classes  ?

• 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
• G06N 20/00 - Machine learning
• G06N 3/02 - Neural networks

Abstract

Provided is a shock absorber comprising: a protruding part (3) which is provided on a side portion of an outer shell (1) of a shock absorber body (D) interposed between a vehicle body and a wheel (W) in a vehicle and protrudes radially outward; and a bracket (B) attached to an outer periphery of the outer shell (1), an insertion hole (8) through which the protruding part (3) is inserted is formed in one side portion of a tubular part (4) of the bracket (B), and the tubular part (4) has a protection wall (40) standing up along an edge of the insertion hole (8) located on at least one mounting part (5) side of an axis (F) of the outer shell (1) as viewed from the one side portion side of the tubular part (4) or a protection wall (40) standing up from an entire edge of the insertion hole (8) located on at least the one mounting part (5) side of a plane (H) passing through an axis (E) of the tubular part (4) and an axis (G) of the protruding part (3).

IPC Classes  ?

• B60G 3/28 - Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram at least one of the arms itself being resilient, e.g. leaf spring
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• F16F 9/54 - Arrangements for attachment

Abstract

This fluid characteristic sensor (100) comprises: a cylindrical outer electrode (52); an inner electrode (62) for detecting a first characteristic value pertaining to a fluid being detected, the inner electrode (62) being provided inside the outer electrode (52); a relay substrate (86) by which the outer electrode (52) and the inner electrode (62) are electrically connected; and a temperature sensor (102) for detecting a second characteristic value pertaining to the fluid being detected, the temperature sensor (102) being connected to a lead line (70) that is inserted through a through-hole (87) in the relay electrode (86) and being inserted into a hollow section (62a) in the inner electrode (62). The through-hole (87) has: a communication section (87a) provided in communication with the hollow section (62a) in the inner electrode (62); and a slit (87b) provided in succession to the communication section (87a), the slit (87b) not communicating with the hollow section (62a) in the inner electrode (62).

IPC Classes  ?

• G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
• G01N 27/06 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid

Abstract

This damping valve (V1) comprises: a partition wall (2) that is annular and has an annular outer peripheral valve seat (2c) inserted into a cylinder (1) to be radially positioned only by the cylinder, and protruding in the axial direction from one axial end (2b), and a port (2d) provided to the inner peripheral side of the outer peripheral valve seat (2c); a valve stopper (3) having an annular inner peripheral valve seat (3c) opposing the one end (2b) of the partition wall (2) and having a smaller outer diameter than the outer peripheral valve seat (2c); and an annular leaf valve (4) which is interposed between the outer peripheral valve seat (2c) and the inner peripheral valve seat (3c), and for which is set an inward and outward double swing door for opening/closing the port (2d), wherein the partition wall (2) includes an alignment part (2e) that aligns the leaf valve (4) relative to the outer peripheral valve seat (2c).

IPC Classes  ?

• F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
• F16F 9/508 - Means responsive to the velocity of movement of the piston

Abstract

A load holding mechanism 20 has a switch valve (22) that switches operation of an operation check valve (21). The switch valve (22) is provided in a first drain passage (76a) connected to a pilot chamber (23), and has a gas release valve (80) for discharging gas from the pilot chamber (23) to the drain side. The gas release valve (80) has a valve body (82) that opens and closes a passage (81). When a pilot pressure supply source (5) is stopped, the valve body (82) is brought into contact with a first seat portion (81b) by a bias force of a biasing member (83), and blocks the passage (81). When the pilot pressure supply source (5) is driven and a pilot pressure of the pilot chamber (23) is less than a predetermined pressure lower than a pilot pressure at which a spool (56) moves, the valve body (82) moves against the bias force of the biasing member (83) and separates from the first seat portion (81b) to allow a flow of fluid from the pilot chamber (23) to the drain side.

IPC Classes  ?

• F15B 11/08 - Servomotor systems without provision for follow-up action with only one servomotor

Abstract

According to the present invention, a road surface condition is appropriately estimated. A computing device (14) comprises: an image acquiring unit (30) for acquiring a captured image of a road, captured by means of a camera provided in a vehicle traveling along the road; an unevenness information acquiring unit (32) for acquiring unevenness information representing an uneven condition of the road, detected by a sensor provided in the vehicle; a position calculating unit (34) for calculating position information of a region of interest on the road, appearing in the captured image; an unevenness information extracting unit (36) for extracting the unevenness information for the region of interest from the unevenness information on the basis of the position information of the region of interest; and a processing unit (38) for executing processing to associate image data for the region of interest in the captured image with the unevenness information for the region of interest.

IPC Classes  ?

• G08G 1/00 - Traffic control systems for road vehicles
• G06T 7/00 - Image analysis
• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
• G01B 11/30 - Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces

Abstract

A damping valve includes: a disk with a port and a valve seat surrounding the port; a leaf valve that opens and closes the port by causing the front side to sit on and leave the valve seat; a tubular housing provided on the back side of the leaf valve; an annular spool that abuts on the back of the leaf valve and is slidably inserted into the inner circumference of the housing to form a back pressure chamber that causes back pressure to act on the leaf valve inwardly together with the housing; an annular spring support portion that is located on the back side of the leaf valve, faces the inside of the back pressure chamber, and has a smaller outer diameter than an inner diameter of the spool; and an annular leaf spring that is interposed between one end of the spool that is an opposite side end of the leaf valve and the spring support portion and presses the spool in a direction of abutting on the leaf valve.

IPC Classes  ?

• F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
• F16K 17/04 - Safety valves; Equalising valves closing on insufficient pressure on one side spring-loaded

Abstract

An electromagnetic relief valve system (100) comprises an electromagnetic relief valve (90), and a control unit (91) that controls the electromagnetic relief valve (90). The control unit (90) has a dither generation unit (93) that generates a dither on a plunger (72) by applying one of a first dither signal and a second dither signal having an amplitude or a frequency different from the first dither signal to a current supplied to a coil (75). The dither generation unit (93) applies the first dither signal to the current supplied from the drive control unit (91) to the coil (75) during an adjustment of a set value for changing the current supplied from the drive control unit (91) to the coil (75), and applies the second dither signal to the current supplied from the drive control unit (91) to the coil (75) in a state in which the adjustment of the set value is not performed.

IPC Classes  ?

• F16K 17/06 - Safety valves; Equalising valves closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure

Abstract

A hydraulic cylinder (100) includes a rod member (60) and a rod head (75). The rod member (60) includes a first in-rod channel (63) that guides a hydraulic fluid to one of a rod-side chamber (1) and an opposite rod-side chamber (5), and an annular second in-rod channel (64) that guides the hydraulic fluid to the other of the rod-side chamber (1) and the opposite rod-side chamber (5). The rod head (75) includes a first channel (80) that connects outside of the rod head (75) to the first in-rod channel (63), and a second channel (81) that connects outside the rod head (75) to the second in-rod channel (64). The second channel (81) includes a main channel (81a) that opens to an outer surface of the rod head (75) and a plurality of branching channels (81b) that are provided branching from the main channel (81a) and that each connect to the second in-rod channel (64).

IPC Classes  ?

• F15B 15/14 - Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
• F15B 15/16 - Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type

Abstract

A load retention mechanism (20) has a switching valve (22) for switching the operation of an operation check valve (21). The switching valve (22) has a piston (50) that, upon reception of pilot pressure, imparts thrust to a spool (56); and a gas releasing valve (80) that is provided to the piston (50) and that discharges gas from the pilot chamber (23) to a drain side. The gas releasing valve (80) has a valve body (82) for opening/closing a passage (81). The valve body (82) comes into contact with a first sheet part (81b) by a biasing force of a biasing member (83) and blocks the passage (81) during stoppage of a pilot pressure supply source (5), and moves against the biasing force of the biasing member (83) to be separated from the first sheet part (81b) and allows a fluid to flow from the pilot chamber (23) to a drain chamber (51) while the pilot pressure supply source (5) is driving and when the pilot pressure of the pilot chamber (23) is less than a prescribed pressure level which is lower than the pilot pressure for moving the spool (56).

IPC Classes  ?

• F15B 11/08 - Servomotor systems without provision for follow-up action with only one servomotor

Abstract

This fluid pressure buffer (100) comprises: a damping valve (20) the damping characteristic of which can be changed according to a pilot pressure; and a pilot valve (30) which supplies, as a pilot pressure, a working fluid in a bottom-side chamber (1) or a rod-side chamber (2) to a pilot chamber (27) of the damping valve (20). The pilot valve (30) has: a first pilot chamber (31) to which the working fluid is guided from the bottom-side chamber (1); and a second pilot chamber (32) to which the working fluid is guided from the rod-side chamber (2), wherein during a non-extension/contraction operation of the fluid pressure buffer (100), the pilot valve (30) supplies a pilot pressure to the pilot chamber (27) of the damping valve (20), and during an extension/contraction operation of the fluid pressure buffer (100), the pilot valve (30) maintains a pilot pressure of the pilot chamber (27) of the damping valve (20) during the non-extension/contraction operation of the fluid pressure buffer (100).

IPC Classes  ?

• B60G 17/08 - Characteristics of fluid dampers
• F16F 9/512 - Means responsive to load action on the damper or fluid pressure in the damper

Abstract

The inner peripheral surface of an accommodation hole (71) in which a spool (75) is accommodated is formed with: a first annular groove (81) connected to a first actuator port (51); a second annular groove (82) connected to a second actuator port (52); a third annular groove (83) connected to a first motor port (53); a fourth annular groove (84) connected to a second motor port (54); a fifth annular groove (85) connected to a first drain port (55); and a sixth annular groove (86) connected to a second drain port (56). The first annular groove (81) is located between the third annular groove (83) and the fifth annular groove (85). The second annular groove (82) is located between the fourth annular groove (84) and the sixth annular groove (86). With respect to the center O between the first annular groove (81) and the second annular groove (82), the third annular groove (83) and the fourth annular groove (84) are symmetrically located, and the fifth annular groove (85) and the sixth annular groove (86) are symmetrically located.

IPC Classes  ?

• F16K 11/07 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
• F03C 2/00 - Rotary-piston engines

Abstract

A fluid pressure shock absorber (100) mounted in a vehicle comprises: a cylinder tube (10); a rod (12) that is inserted into the cylinder tube (10) so as to be movable forward and backward; a piston (14) that is connected to the rod (12) and divides the interior of the cylinder tube (10) into a bottom side chamber (1) and a rod side chamber (2); a damping valve (20) that imparts resistance to the flow of working fluid between the bottom side chamber (1) and the rod side chamber (2) and has variable damping characteristics according to pilot pressure; and a solenoid valve (30) that switches between supply and cutoff of pilot pressure to the damping valve (20). The working fluid from the bottom side chamber (1) or the rod side chamber (2) is used as the pilot pressure.

IPC Classes  ?

• F16F 9/512 - Means responsive to load action on the damper or fluid pressure in the damper

Goods & Services

Synthetic materials for absorbing oil; chemical preparations for use in industry; industrial chemicals; fluids for hydraulic circuits; liquids for hydraulic circuits; hydraulic oils; hydraulic fluids; power steering fluid; brake fluid; transmission fluid; transmission oil Solid lubricants; fuel; lubricating grease; lubricating oil; shock absorber oil; gear oils; penetrating oils; moistening oil; mineral oils and greases for industrial purposes [not for fuel]; industrial oil; automotive lubricants; lubricants; non-mineral oils for industrial purposes; non-mineral greases for industrial purposes Cutter loaders; coal-cutting machines; coal loaders; rock drills; diggers [machines]; extractors for mines; mining machines and apparatus; mechanical shovels; excavating machines; truck cranes; concrete mixers; cranes; conveyors [machines]; belts for conveyors; cargo handling machines; mobile cranes; hydraulic jacks; pneumatic jacks; jacks [machines]; winches; cranes [lifting and hoisting apparatus]; loading and unloading machines; car lifts; lifting apparatus; electric welding machines; electric welding apparatus; electric arc welding apparatus; impact wrenches; buffers [power driven, hand-held]; metalworking machines; molds [parts of machines]; grinding machines; metal cutting machines; foundry machines; mixing machines; agitators; crushing machines; disintegrators; reapers; cultivators [machines]; harvesting machines; sowers [machines]; raking machines; painting machines; colour-washing machines; cylinders for machines; grease rings [parts of machines]; piston rings; piston segments; pistons [parts of machines or engines]; connecting rods for machines, motors and engines; hydraulic controls for motors and engines; sealing joints [parts of engines]; cylinders for motors and engines; motors other than for land vehicles; engine cylinders for land vehicles; pumps for land vehicle engines; fuel pumps for land vehicle engines; rotary pumps; hydraulic pumps; oil pumps with electric motors; oil pumps; pumps [machines]; pumps [parts of machines, engines or motors]; pumps; compressors [machines]; ball joints [machine elements], other than for land vehicles; axles for machines; journals [parts of machines]; transmission shafts, other than for land vehicles; bearings [parts of machines]; bearings for transmission; shaft couplings [machines]; hydraulic actuators, other than for land vehicles; hydraulic cylinders [parts of machines]; hydraulic motors; electric cylinders, other than for land vehicles; reduction gears, other than for land vehicles; speed change gears, other than for land vehicles; gear boxes, other than for land vehicles; gears, other than for land vehicles; torque converters, other than for land vehicles; pulleys; transmissions for machines; transmission mechanisms, other than for land vehicles; machine wheelwork; hydraulic torque converters, other than for land vehicles; pneumatic or hydraulic linear actuators, other than for land vehicles; machine couplings and transmission components for machines; shock absorbers for machines; shock absorber plungers [parts of machines]; springs [parts of machines]; springs, machine elements not for land vehicles; brake pads, other than for vehicles; brakes for machines; valves [parts of pumps]; valves [parts of machines]; hydraulic valves being parts of machines; pneumatic door openers; pneumatic door closers; electric door openers; electric door closers; hydraulic door openers; hydraulic door closers; electric motors and parts thereof, other than for land vehicles Electric motors for land vehicles; engines for land vehicles; motors for land vehicles; pneumatic or hydraulic linear actuators for land vehicles; reduction gears for land vehicles; speed change gears for land vehicles; hydraulic cylinders for land vehicles; hydraulic motors for land vehicles; electric cylinders for land vehicles; steering units for land vehicles; power steering apparatus and their parts for automobiles; steering drives for railway rolling stock; pumps for power steering apparatus; parts of steering units for land vehicles; rack ends; tie rod ends; stabilizer links; ball joints; pitman arms; idler arms; center links; cross rods; side rods; inner shafts; drag links; transmission mechanisms for land vehicles; transmissions for land vehicles; gearing for land vehicles; shift actuators for vehicle transfer cases; motors for vehicle transfer-cases; transmission components for land vehicles; hydraulic circuits for vehicles; transmission shafts for land vehicles; connecting rods for land vehicles, other than parts of motors and engines; drive chains for two-wheeled vehicles; suspension systems for vehicles; shock absorbers for vehicles; suspension shock absorbers for vehicles; vehicle suspension springs; shock absorbing springs for vehicles; suspension systems for land vehicles; shock absorbers for land vehicles; suspension shock absorbers for land vehicles; suspension springs for land vehicles; shock absorbing springs for land vehicles; suspension systems for automobiles; shock absorbers for automobiles; suspension shock absorbers for automobiles; suspension springs for automobiles; shock absorbing springs for automobiles; electronic control suspension systems for two wheeled motor vehicles; electronic control suspension systems for snowmobiles; electronic control suspension systems for vehicles; buffers for railway rolling stock; shock absorbers for motorcycles; shock absorbers for bicycles; shock absorbing springs for motorcycles and bicycles; leveling valves for railway rolling stock; leveling valves for automobiles; leveling valves for land vehicles; axles for vehicles; axle journals; axle bearings for land vehicles; wheel bearings for land vehicles; shaft couplings for land vehicles; brake valves for vehicles; brake valves; disc brakes for vehicles; brake discs for vehicles; brake pads for vehicles; brake cylinders for vehicles; brakes for vehicles; brake cylinders for land vehicles; parachutes; anti-theft alarms for vehicles; anti-theft devices for vehicles; wheelchairs; hatch covers for ships; ships; water vehicles; boats; structural parts for boats; davits for boats; aeroplanes; landing gear for aircraft; landing gear wheels for aircraft; oil hydraulic system components for aircraft; flight control gears; structural parts for helicopters; structural parts for aircraft; rolling stock for railways; railway coupling; structural parts for trains; automobiles; camping cars; lorries; luggage truck; trucks; dump trucks; concrete mixing vehicles; snowmobiles; tractors; elevating tailgates [parts of land vehicles]; tailboard lifts [parts of land vehicles]; structural parts for automobiles; structural parts for buses; structural parts for trucks; clutches for land vehicles; two-wheeled motor vehicles; bicycles; front forks for two-wheeled vehicles and their parts; bicycle forks and their parts; tricycle

Abstract

A solenoid includes: a coil; a first fixed iron core disposed on an axial first-end side of the coil; a second fixed iron core disposed on an axial second-end side of the coil with a gap from the first fixed iron core; a tubular first movable iron core disposed between the first fixed iron core and the second fixed iron core: a second movable iron core having a tubular shape with a bottom, slidably inserted into the first movable iron core, disposed between the first fixed iron core and the second fixed iron core with a bottom portion facing the second fixed iron core; and a spring interposed between the first movable iron core and the first fixed iron core, and pressing the first movable iron core to the second fixed iron core side.

IPC Classes  ?

• H01F 7/16 - Rectilinearly-movable armatures
• F16K 31/06 - Operating means; Releasing devices magnetic using a magnet
• F16F 9/46 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details such means combined with temperature correction allowing control from a distance
• F16F 9/516 - Special means providing automatic damping adjustment resulting in the damping effects during contraction being different from the damping effects during extension
• H01F 7/08 - Electromagnets; Actuators including electromagnets with armatures

Abstract

A motor control device according to the present disclosure is a motor control device configured to control voltage signals of a plurality of phases, the voltage signals being applied to an alternating-current motor, the motor control device including: a differential-value calculation unit configured to calculate the time differential value of a virtual line connecting peak values of each of phase voltage signals that are the voltage signals of the respective phases, the voltage signals being input to the alternating-current motor; a wavelength calculation unit configured to calculate the wavelength of each phase voltage signal input to the alternating-current motor from the time differential value; and a switching-signal generation unit configured to generate, based on the calculated wavelength, a signal that switches the phase of the alternating-current motor to which alternating-current voltage is applied.

IPC Classes  ?

• H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation

Abstract

This hydraulic device has: a cylindrical outer shell (4); a rod (3) that is movably inserted into the outer shell (4) in the axial direction thereof; an annular rod guide (5) that is fitted on an inner circumference at an end of the outer shell (4), and that has an inner circumference into which the rod (3) is inserted and an outer circumference having a tapered surface (t) on the atmosphere side thereof; and a sealing member (6) that is inserted into the inner circumference of the outer shell (4) and that has an annular insert metal (7) which is layered on the rod guide (5) and an annular outer circumference seal (8) which is provided on the outer circumference of the insert metal (7) and is pressed against the tapered surface (t) to be firmly attached to the inner circumference of the outer shell (4). The outer circumference seal (8) has, at the outer circumference thereof, an annular first lip (8b) that abuts the inner circumference of the outer shell (4) when the outer circumference seal (8) abuts the tapered surface (t). The first lip (8b) does not abut the inner circumference of the outer shell (4) when the outer circumference seal (8) is not abutting the tapered surface (t).

IPC Classes  ?

• F16F 9/36 - Special sealings, including sealings or guides for piston-rods
• F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
• F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
• F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip

Abstract

A shock absorber (D) according to the present invention comprises: a cylinder (1); a piston (2) slidably inserted in the cylinder (1); a piston rod (3) movably inserted into the cylinder (1); a rebound spring (4) having a coil spring (5) disposed on the outer periphery of a piston rod (3) and an annular lower collar (6) attached to the coil spring (5); and an annular support (8) that opposes the lower collar (6) in the axial direction and that supports the piston-side end of the lower collar (6), wherein the support (8) comprises a cylindrical part (8a) mounted on the outer periphery of the piston rod (3), and a receiving part (8b) which has an annular shape, the inner periphery of which is connected to the end side of the cylindrical part (8a) opposite the piston and which faces, in the axial direction, the piston-side end of the lower collar (6) and can come into contact with the lower collar (6), and a restriction part that restricts the eccentricity of the lower collar (6) with respect to the receiving part (8b) is provided.

IPC Classes  ?

• F16F 1/12 - Attachments or mountings
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• F16F 9/58 - Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder

Abstract

In a transmission-equipped motor, a spline portion is formed at an end portion of a drive shaft of a transmission, and a spline hole with which the spline portion is engaged is formed on an end surface of a motor shaft of a hydraulic motor. A snap ring which contacts an end surface of the motor shaft having the spline hole is provided on an outer periphery of the drive shaft having the spline portion so that the snap ring positions the motor shaft and the drive shaft.

IPC Classes  ?

• H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
• F16H 1/46 - Systems consisting of a plurality of gear trains, each with orbital gears
• F16D 1/02 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like

Abstract

A transmission (100) comprises: a transmission mechanism (40); a cylindrical rotary housing (15); a cover (50) which is provided at an open end part (15a), of the rotary housing (15), that opens to the side, of the transmission mechanism (40), opposite to a hydraulic motor (20), and which blocks the open end part (15a); a carrier plate (47) which is provided on an end surface, of the transmission mechanism (40), facing the cover (50); and a plug (54a) which is provided to the cover (50) so as to be detachable from the side thereof opposite to the carrier plate (47). The plug (54a) protrudes toward the carrier plate (47) from the cover (50), and is capable of supporting a thrust load acting on the carrier plate (47) from the transmission mechanism (40).

IPC Classes  ?

• F16H 57/031 - Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes

Abstract

A damper (D) according to the present embodiment comprises: a damper main body (1) having a cylindrical outer shell (2), and a rod (3) inserted so as to be freely movable inside the outer shell (2); and a knuckle bracket (4) attached to the lower end outer periphery of the outer shell (2). The knuckle bracket (4) includes: a pair of clamping pieces (5, 6) that are formed by bending one metal sheet as a base material, curve along the outer periphery of the outer shell (2), and clamp the outer shell (2) therebetween; a pair of attachment pieces (7, 8) that each extend from the circumferential ends of the respective clamping pieces (5, 6) in the radial direction of the outer shell (2), and face each other; a connecting piece (9) connecting the upper ends of the attachment pieces (7, 8) together; and a pair of notches (10, 11) that excise a three-plane intersection where the clamping pieces (5, 6), attachment pieces (7, 8), and connecting piece (9) intersect.

IPC Classes  ?

• B60G 7/00 - Pivoted suspension arms; Accessories thereof
• B60G 13/06 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• F16F 9/54 - Arrangements for attachment

Abstract

A shock absorber (D) according to the present embodiment comprises: a shock absorber body (1) having a cylindrical outer shell (2) and a rod (3) inserted into the outer shell (2) so as to be free to move; and a knuckle bracket (4) mounted to the lower circumferential end of the outer shell (2), wherein: the knuckle bracket (4) comprises a pair of clamping pieces (5, 6) curving along the periphery of the outer shell (2) and clamping the outer shell (2), a pair of mounting pieces (7, 8) extending in the radial direction of the outer shell (2) from the circumferential ends of each of the clamping pieces (5, 6) and facing each other, and a coupling piece (9) coupling the upper end of the mounting pieces (7, 8) to each other; the width between the circumferential tips of the inner surface of each of the clamping pieces (5, 6) is greater than the outer diameter of the outer shell (2); and the base ends rather than the circumferential tips of the inner surface of each of the clamping pieces (5, 6) are in contact with the outer circumference of the outer shell (2).

IPC Classes  ?

• B60G 7/00 - Pivoted suspension arms; Accessories thereof
• B60G 13/06 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• F16F 9/54 - Arrangements for attachment
• B23K 9/00 - Arc welding or cutting

Abstract

A piston pump includes: a tilting mechanism configured to bias a swash plate in accordance with a control pressure; a support spring configured to support the swash plate; and a regulator configured to control a control pressure guided to the tilting mechanism in accordance with a self-pressure of the piston pump. The regulator has an outer spring and an inner spring configured to be extended and compressed by following tilting of the swash plate; and a control spool configured to be moved in accordance with a biasing force from the outer spring and the inner spring, the control spool being configured to regulate the control pressure, and the outer spring and the inner spring and the support spring are provided adjacent to each other and in parallel with respect to the swash plate.

IPC Classes  ?

• F04B 1/2078 - Swash plates
• F04B 1/32 - Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
• F04B 1/306 - Control of machines or pumps with rotary cylinder blocks by turning the swash plate, e.g. with fixed inclination

Abstract

Provided is a control valve (V) with which air can be discharged stably.　The control valve (V) is provided with: a valve body (46); a spool hole (47) formed in the valve body (46); a spool (45) assembled into the spool hole (47) so as to be slidable; a pilot chamber (57) into which a pilot oil for actuating the spool (45) is introduced; a discharge channel (51) for discharging a working oil to the outside of the valve body (46); a spiral groove (67) that is formed in a spiral shape in the outer periphery of the spool (45) and communicates with the discharge channel (51); and at least one axial direction groove (72) that is formed in the inner surface of the spool hole (47) along the axial direction of the spool (45) and makes the pilot chamber (57) communicate with the spiral groove (67).

IPC Classes  ?

• F16K 3/24 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
• F15B 11/08 - Servomotor systems without provision for follow-up action with only one servomotor
• F16K 11/07 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides

Abstract

A shock absorber includes: a shock absorber main body that has an outer tube and a rod movably inserted into the outer tube and can extend and contract; a main passage and a sub passage that communicate in parallel two working chambers provided in the shock absorber main body; a main damping force generation element provided in the main passage; and a sub damping force generation element provided in the sub passage. The main damping force generation element has only a main valve that opens and closes the main passage. The sub damping force generation element has an orifice provided in series with the sub passage, and a sub valve that opens and closes the sub passage and has a valve opening pressure lower than that of the main valve.

IPC Classes  ?

• F16F 9/512 - Means responsive to load action on the damper or fluid pressure in the damper
• F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
• F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder

Abstract

An electric fluid pressure cylinder is provided with: a driving unit integrally provided with an electric motor, a pump configured to discharge working oil by being driven by the electric motor, and a tank; a hydraulic cylinder configured to be extended and contracted by the working oil supplied from the driving unit; and a first hose pipe and a second hose pipe configured to guide the working oil between the driving unit and the hydraulic cylinder. The driving unit is further provided with: a valve block configured to control the flow of working fluid between the fluid pressure cylinder and the pump; and a connecting plate attached to the valve block and formed with a connecting port to which the pipe member is connected, the connecting port being configured such that the working fluid supplied to and discharged from the fluid pressure cylinder passes through the connecting port.

IPC Classes  ?

• F15B 11/10 - Servomotor systems without provision for follow-up action with only one servomotor in which the servomotor position is a function of the pressure
• F15B 13/00 - SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR - Details of servomotor systems
• F15B 15/14 - Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
• F04B 17/03 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors

Abstract

A spring guide (100) formed from a fiber reinforced resin comprises a disc-shaped base portion (110) that supports a coil spring (4) that elastically supports a vehicle body and a cylindrical portion (112) into which a cylinder (1b) of a shock absorber (1) is inserted. In the cylindrical portion (112), the fiber reinforced resin is oriented in the circumferential direction.

IPC Classes  ?

• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• B29C 33/42 - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING - Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
• B29C 45/26 - Moulds
• F16F 1/12 - Attachments or mountings

Abstract

In a straight traveling control valve 30: a spool 50 moves between a neutral position 30A and a straight traveling position 30B, said neutral position 30A being for making a third inlet port 45 communicate with a first outlet port 43 to make an upstream-side parallel channel 13a communicate with a downstream-side parallel channel 13b and for making a second inlet port 42 communicate with a second outlet port 44 to make an upstream-side neutral channel 21a communicate with a downstream-side neutral channel 21b, said straight traveling position 30B being for making a first inlet port 41 communicate with the second outlet port 44 to make the upstream-side parallel channel 13a communicate with the downstream-side neutral channel 21b and for making the second inlet port 42 communicate with the first outlet port 43 to make the upstream-side neutral channel 21a communicate with the downstream-side parallel channel 13b; and when the spool 50 is at the neutral position 30A, a hydraulic oil is allowed to flow from the first inlet port 41 to the first outlet port 43 through a bypass channel 65.

IPC Classes  ?

• F15B 11/02 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member
• F16K 11/07 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides

Abstract

A shock absorber according to the present invention includes: a shock absorber main body having an outer shell and a rod; and a knuckle bracket attached to an outer circumference of the bottom end of the outer shell. The knuckle bracket includes: a holding portion having a cylindrical shape with a C-shaped cross section, and that holds the outer circumference of the outer shell; a pair of attachment portions extending radially outwards, and in parallel with each other, from respective circumferential ends of the holding portion; and reinforcing portions formed by bending top ends of the attachment portions in directions approaching each other; and a C-shaped welded portion having a C-shaped surface that is formed by top ends of the reinforcing portions and a top end of the holding portion, the C-shaped welded portion being formed by welding the C-shaped surface to the outer shell, across a range from a position spaced from one circumferential end of the C-shaped surface, traversing across an upper part of a rear side of the holding portion, to the other circumferential end of the C-shaped surface.

IPC Classes  ?

• B60G 13/00 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers

Abstract

A valve device (100) comprises: a main spool (170) having supply passages (195, 196, 197) and a supply-side land part (171); and a valve block (10) having an outward guiding passage (123). The supply passage (195) connects the outward guiding passage (123) and a supply port (121a) during a process of a movement of the main spool (170) from a neutral position toward one of stroke ends in the axial direction. The supply passage (196) connects the outward guiding passage (123) and a supply port (121b) during a process of a movement of the main spool (170) from the neutral position toward the other stroke end in the axial direction. The supply passage (197) connects the outward guiding passage (123) and the supply port (121b) during a process of a movement of the main spool (170) toward said one stroke end, and connects the outward guiding passage (123) and the supply port (121a) during a process of a movement of the main spool (170) toward the other stroke end.

IPC Classes  ?

• F16K 11/07 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides

Abstract

A lubricating oil composition according to the present embodiment is a lubricating oil composition to be used in a sliding member coated with hydrogen-containing diamond-like carbon, and contains a base oil and a friction modifier. The friction modifier contains a fatty acid ester of pentaerythritol.

IPC Classes  ?

• C10M 129/74 - Esters of polyhydroxy compounds
• C10M 129/76 - Esters containing free hydroxy or carboxyl groups
• C10M 169/04 - Mixtures of base-materials and additives
• F16F 7/09 - Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other in dampers of the cylinder-and-piston type

Abstract

In the present invention, a seal device (S) for a hydraulic apparatus comprises: an annular main piston split body (outer member) (4); a sub piston split body (inner member) (5) inserted into the main piston split body (outer member) (4); and a seal ring (12) which is accommodated in an annular groove (50) provided in the outer circumference of the sub piston split body (inner member) (5), abuts the main piston split body (outer member) (4), and suppresses a liquid from passing between the main piston split body (outer member) (4) and the sub piston split body (inner member) (5), wherein the seal ring (12) has a self-lubrication property, and has, on an inner circumferential surface (bottom section-facing surface) (13) facing a bottom section (51) of the annular groove (50), a cylindrical surface (13a) centered on an axial line (A).

IPC Classes  ?

• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• F16F 9/508 - Means responsive to the velocity of movement of the piston
• F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings

Abstract

This valve (V1, V2, V3, V4) comprises: a valve seat member (2, 5) equipped with a port (2a, 2b, 5d, 5e) and a sheet section (2d, 2g, 5g, 5j) surrounding the outlet end of the port (2a, 2b, 5d, 5e); and an annular leaf valve (10, 12, 22) in which the inner circumference immovably overlaps the valve seat member (2, 5) and the outer circumference is detachably seated on the sheet section (2d, 2g, 5g, 5j). The outer shape of the leaf valve (10, 12, 20a, 22) is larger than the inner shape of the sheet surface (2d1, 5g1) of the sheet section (2d, 5g) or than a virtual circle passing through the inner circumference of the sheet surface (2g1) of each of arcuate parts P in the sheet section (2g), and smaller than the outer shape of the sheet surface (2d1, 5g1) or than a virtual circle passing through the outer circumference of the sheet surface (2g1, 5j1) of each of the arcuate parts P.

IPC Classes  ?

• F16K 25/00 - VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING - Details relating to contact between valve members and seats
• F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions

Abstract

Provided are a lubricant composition for shock absorbers, a lubricant additive, and a method of adjusting friction characteristics of a lubricant composition for shock absorbers, each capable of satisfying both the operational stability and ride comfort. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent, the friction adjusting agent contains pentaerythritol esters, and the pentaerythritol esters contain a pentaerythritol tetraester and a pentaerythritol ester other than the pentaerythritol tetraester.

IPC Classes  ?

• C10M 129/74 - Esters of polyhydroxy compounds
• C10M 169/04 - Mixtures of base-materials and additives
• C10M 129/76 - Esters containing free hydroxy or carboxyl groups
• B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details

Abstract

A piston pump 100 comprises a first biasing part 20 that biases a swashplate 8 in accordance with a supplied control pressure, a second biasing part 30 that biases the swashplate 8 against the first biasing part 20, and a regulator 50 that controls the control pressure directed to the first biasing part 20 in accordance with the pressure of the piston pump 100, the regulator 50 having: an external spring 51a and an internal spring 51b that extend and contract in conformity with the tilt of the swashplate 8; a control spool 52 that moves in accordance with the biasing force of the external spring 51a and the internal spring 51b and adjusts the control pressure; an auxiliary spring 61 that exerts, on the control spool 52, a biasing force against the biasing force of the external spring 51a and the internal spring 51b; and a housing chamber 65 that houses the auxiliary spring 61, a signal pressure that exerts thrust against the control spool 52 being directed to the housing chamber 65.

IPC Classes  ?

• F04B 1/324 - Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
• F04B 1/2078 - Swash plates

Abstract

A technique involves outputting not only the condition of hydraulic oil but also information on failure prediction of equipment by processing in real time. Such a technique utilizes an oil condition sensor attached to the equipment, a parameter calculator that calculates the values of a plurality of parameters indicating the state of the hydraulic oil based on the sensor output of the oil condition sensor and correlation information between the sensor output and the values of a plurality of parameters indicating the state of the hydraulic oil, and failure prediction determiner that predicts equipment failures based on parameter values and identifies and outputs parameters that are inferred as the cause of the failure prediction, and outputs not only the condition of hydraulic oil but also information on failure prediction of the equipment by processing in real time.

IPC Classes  ?

• G01N 27/06 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
• G01N 33/28 - Oils
• G05B 23/02 - Electric testing or monitoring

Abstract

[Problem] To provide a lubricant additive, a method for adjusting the friction characteristics of a shock absorber lubricant composition, and a shock absorber lubricant composition whereby it is possible to balance operation stability and ride comfort. [Solution] A shock absorber lubricant composition characterized by containing a base oil and a friction modifier, wherein the friction modifier contains pentaerythritol ester, and the base oil has an ester oil as a main component.

IPC Classes  ?

• C10M 169/04 - Mixtures of base-materials and additives
• C10N 10/04 - Groups 2 or 12
• C10N 30/00 - Specified physical or chemical property which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
• C10N 40/06 - Instruments or other precision apparatus, e.g. damping fluids
• C10M 105/32 - Esters
• C10M 129/74 - Esters of polyhydroxy compounds
• C10M 137/10 - Thio derivatives
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details

Abstract

Problem: To provide a method for manufacturing a sliding member, a method for manufacturing a damper, a sliding member, a damper, and a method for adjusting ride comfort that improve retention of lubricant oil between sliding members while increasing operability, thereby allowing to sustain smooth sliding of the sliding members. Solution: A method for manufacturing a sliding member that carries out a sliding operation in the presence of lubricant oil, the method comprising: a first polishing step of polishing the surface of the sliding member by using a polishing tape with a first whetstone in a circumferential direction of the sliding member to form a plurality of grooves circling around in the peripheral direction on the sliding member; and a second polishing step of polishing the sliding member after the first polishing step to form a plateau-shaped surface cross-section in a longitudinal direction of the sliding member.

IPC Classes  ?

• B24B 21/00 - Machines or devices using grinding or polishing belts; Accessories therefor
• B24B 21/02 - Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details

Abstract

The present invention improves accuracy in machine learning and reduce running costs by updating to a new learning model generated by selecting data, etc. The present invention improves accuracy in machine learning and reduce running costs by updating to a new learning model generated by selecting data, etc. The data collector collects data to perform machine learning. The data storage stores the collected data. The data selector selects data for updating existing learning models used for machine learning from the data stored in the data storage. The learning model generator generates a new learning model by machine learning based on the selected data, and the updater updates at least the existing learning model to the new learning model generated in the learning model generator.

IPC Classes  ?

• G06N 20/00 - Machine learning

Abstract

A sensor device 100 comprises a board 1 that is electrically connected to a sensor portion, a battery 10 for supplying power to the board 1, a first connector 16 attached to the board 1, a second connector 2 which is attached to the battery 10 and which detachably engages with the first connector 16, and a case 20 for accommodating the board 1 and the battery 10, wherein: the case 20 includes a main body portion 21 forming an accommodating space S for accommodating the board 1 and the battery 10, and a cap portion 30 which is attached to the main body portion 21 so as to seal the accommodating space S; and the cap portion 30 is provided with a stopper portion 31 which faces the second connector 17, and which restricts disengagement between the first connector 16 and the second connector 17 by coming into contact with the second connector 17 moving in a direction disengaging from the first connector 16.

IPC Classes  ?

• G01L 19/14 - Housings
• H05K 7/14 - Mounting supporting structure in casing or on frame or rack

Abstract

A piston pump includes: a first biasing mechanism configured to bias a swash plate in accordance with control pressure supplied; a second biasing mechanism configured to bias the swash plate against the first biasing mechanism; and a regulator configured to control the control pressure in accordance with self-pressure of the piston pump. The regulator has: an outer spring and an inner spring configured to be extended and compressed by following tilting of the swash plate; a control spool configured to be moved in accordance with biasing forces exerted by the outer spring and the inner spring, the control spool being configured to adjust the control pressure; an auxiliary spring configured to exert biasing force to the control spool against the biasing forces exerted by the outer spring and the inner spring; and an adjusting mechanism configured to adjust the biasing force exerted by the auxiliary spring.

IPC Classes  ?

• F04B 1/324 - Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
• F04B 1/2078 - Swash plates

Abstract

A valve 93 includes: a leaf valve element 931; an opposing surface 932 that opposes the leaf valve element 931 and forbids passage of a working fluid in a liquid passage 91 in which the leaf valve element 931 is disposed; and a seating surface 933 that, if the leaf valve element 931 has been deformed by a predetermined amount, contacts the leaf valve element 931 and forbids passage of the working fluid in the liquid passage 91 on which the leaf valve element 931 is disposed. In an allowance process for allowing the passage of the working fluid, the leaf valve element 931 elastically deforms in a direction away from the seating surface 933 such that the working fluid can pass. The predetermined amount is set such that, in a restricting process, the relief valve element 931 contacts the seating surface 933 if the speed of a piston 3 exceeds a predetermined upper limit value of a regular use range.

IPC Classes  ?

• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
• F16F 9/46 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details such means combined with temperature correction allowing control from a distance
• F16F 9/508 - Means responsive to the velocity of movement of the piston

Abstract

A shock absorber includes a hard-side damping element for applying resistance to a flow of liquid from a compression side chamber to an extension side chamber, a solenoid valve capable of changing an opening area of a compression side bypass passage for communicating the compression side chamber and the extension side chamber by bypassing the hard-side damping element, and a soft-side damping element provided in the compression side bypass passage in series with the solenoid valve. The hard-side damping element has an orifice and a leaf valve provided in parallel with the orifice. The soft-side damping element has an orifice having an opening area larger than that of the orifice.

IPC Classes  ?

• F16F 9/516 - Special means providing automatic damping adjustment resulting in the damping effects during contraction being different from the damping effects during extension
• F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
• F16F 9/44 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details such means combined with temperature correction

Abstract

A shock absorber is provided with a cylinder, a piston inserted into the cylinder and demarcating an interior of the cylinder into an extension side chamber and a compression side chamber, a piston rod joined to the piston, a damping passage, provided in the piston rod, that communicates with the extension side chamber and the compression side chamber, and a damping force adjustment valve provided in the damping passage. The damping force adjustment valve includes a damping force adjustment unit and a solenoid that drives the damping force adjustment unit to adjust a flow channel resistance. The piston rod includes a yoke into which the damping force adjustment valve is inserted, and a piston holding member mounted on the yoke. The yoke includes a through-hole opening from a side of the yoke and leading to the interior, and a groove provided on a perimeter of the yoke, extending from an anti-piston end, and leading to the through-hole.

IPC Classes  ?

• F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• F16F 9/516 - Special means providing automatic damping adjustment resulting in the damping effects during contraction being different from the damping effects during extension

Goods & Services

Steering units for land vehicles; parts of steering units for land vehicles; power steering apparatus and their parts for automobiles; electronic control suspension systems for vehicles; suspension systems for vehicles; electronic control shock absorbers for vehicles; shock absorbers for vehicles; suspension shock absorbers for vehicles; vehicle suspension springs; shock absorbing springs for vehicles; suspension systems for land vehicles; shock absorbers for land vehicles; suspension shock absorbers for land vehicles; suspension springs for land vehicles; shock absorbing springs for land vehicles; electronic control suspension systems for automobiles; suspension systems for automobiles; shock absorbers for automobiles; suspension shock absorbers for automobiles; suspension springs for automobiles; shock absorbing springs for automobiles; buffers for railway rolling stock; shock absorbers for motorcycles; shock absorbers for bicycles; parts and fittings for shock absorbers [for land vehicles]; shock absorbing springs for motorcycles and bicycles; automobiles and their parts and fittings; front forks for two-wheeled vehicles; bicycle forks; two-wheeled motor vehicles, bicycles and their parts and fittings.

Abstract

A spring guide includes: a main body portion of which a coil spring is placed on a vehicle side, the main body portion being formed of a resin material; and a covering portion that covers an anti-spring side of the main body portion opposite to the coil spring. The covering portion is formed of a material having a physical property different from that of the resin material forming the main body portion.

IPC Classes  ?

• B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper

Abstract

A vane pump includes: a suction port configured to guide working oil to a pump chambers; a discharge port configured to guide the working oil discharged from the pump chambers; and a notch formed from an opening edge portion of the suction port towards a reversing direction of a rotation direction of a rotor, wherein the pump chambers each communicates with the suction port through the notch during a course of the transition from the state, in which the pump chamber is in communication with the discharge port, to the state, in which the communication with the discharge port is shut off, as the rotor is rotated.

IPC Classes  ?

• F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member

Abstract

A gear manufacturing method, the gear including an annular gear portion including teeth on an outer periphery, an annular support portion provided on an inner peripheral surface of the gear portion and supporting the gear portion, and a core portion provided inside the support portion, the method includes: a support portion molding step of molding the support portion by disposing the gear portion and the core portion in an annular mold and filling a resin between the gear portion and the core portion; and a support portion cooling step of cooling the support portion molded in the support portion molding step, a radial gap between the teeth of the gear portion and the mold before the support portion molding step is set to be smaller than a radial shrinkage amount of the support portion in the support portion cooling step.

IPC Classes  ?

• F16H 55/06 - Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
• B29D 15/00 - Producing gear wheels or similar articles with grooves or projections, e.g. control knobs
• F16H 55/22 - Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears

Abstract

A load holding mechanism 20 comprises: a switching valve 22 that switches the operation of an operation check valve 21; and a relief valve 41 that opens when the pressure in a load-side pressure chamber 2a reaches a predetermined pressure. The switching valve 22 comprises: a drain chamber 51 provided on the opposite side to a spring chamber 54 across a spool 56; a drain passage 76 connected to the relief valve 41 and connected to at least one of the drain chamber 51 and the spring chamber 54; a pressure conduit passage 90 that connects the drain passage 76 and the downstream side of the spool 56 to each other; and a check valve 91 which is provided to the pressure conduit passage 90 and which allows only the flow of a working fluid from the drain passage 76 to the downstream side of the spool 56.

IPC Classes  ?

• F15B 11/00 - Servomotor systems without provision for follow-up action
• F15B 11/08 - Servomotor systems without provision for follow-up action with only one servomotor

Abstract

A shock absorber (D1) with a vehicle height adjustment function in the present invention includes: a shock absorber body (1) having a cylinder (2) filled with liquid, a piston (3) dividing the inside of the cylinder (2) into an expansion-side chamber (R1) and a compression-side chamber (R2), and a piston rod (4) coupled to the piston (3); a suspension spring (S) that urges the shock absorber body (1) in the expansion direction; a reservoir (R) storing a liquid; a damper circuit (C1) that is connected to the expansion-side chamber (R1), the compression-side chamber (R2) and the reservoir (R) to generate a damping force in the shock absorber body (1) when the shock absorber body (1) expands and contracts; a pump (P) capable of sucking and discharging the liquid from the reservoir (R); and a switching valve (V1) that is installed between the shock absorber body (1) and the damper circuit (C1) and the pump (P) and is capable of switching between a damper mode in which the shock absorber body (1) is connected to the damper circuit (C1) to generate the damping force to the shock absorber body (1), and a vehicle height adjustment mode in which the shock absorber body (1) is connected to the pump (P).

IPC Classes  ?

• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements
• F16F 9/46 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details such means combined with temperature correction allowing control from a distance

Abstract

The purpose of the present invention is to provide a calculation program, a calculation method, and a three-phase motor system which can appropriately detect, even with one shunt resistance, the current flowing in each phase of a three-phase AC motor. A calculation program according to the present disclosure causes a computer to execute: a step for detecting a total current, which is the total value of alternating current flowing in each of the three phases of a three-phase AC motor (110); and a step for calculating, on the basis of the total current and the duty ratio of each phase, a phase current for each phase, i.e. the alternating current flowing in each of the three phases of the three-phase AC motor (110).

IPC Classes  ?

• H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation

Abstract

According to the present invention, undershoot is suppressed while a computational load is restricted. This motor control device controls a motor (10), and includes: a comparing unit (20) for comparing a measured rotational speed, which is a measured value of the rotational speed of the motor (10), and a target rotational speed, which is a target value of the rotational speed of the motor (10); and a current control unit (26) for controlling a current value applied to the motor (10), on the basis of the comparison result obtained by the comparing unit (20). If the measured rotational speed is lower than the target rotational speed, the current control unit (26) causes a current having a current value with which the rotational speed of the motor (10) can reach the target rotational speed to be applied to the motor (10), and if the measured rotational speed is equal to or greater than the target rotational speed, the current control unit (26) stops the application of the current to the motor (10).

IPC Classes  ?

• H02P 6/08 - Arrangements for controlling the speed or torque of a single motor

Abstract

In the present invention, an electric power steering device (100) comprises: a first urging mechanism (60); and a second urging mechanism (70). The first urging mechanism (60) includes a first yoke (61) that abuts against a rack shaft (12) and is movable within a first accommodation section (17d) following the movement of the rack shaft (12). The second urging mechanism (70) includes a second yoke (71) that abuts against the rack shaft (12) and is movable within a second accommodating section (17e) following the movement of the rack shaft (12). Movement of the first yoke (61) and the second yoke (71) is restricted by the rack housing (17) as the amount of movement of the rack shaft (12), which steers wheels (2), increases, making it impossible to follow the rack shaft (12). The timings at which the first yoke (61) and the second yoke (71) start to slide on the rack shaft (12) differ from each other.

IPC Classes  ?

• B62D 3/12 - Steering gears mechanical of rack-and-pinion type
• B62D 5/22 - Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for rack-and-pinion type

Abstract

[Problem] To provide a valve and a shock absorber that are inexpensive and provide satisfactory assembling properties. [Solution] A valve (V) according to the present invention comprises: an annular valve body (14); spacers (16, 17) each of which is laminated on the annular valve body (14) and serves as a bending fulcrum for the free end of the annular valve body (14); and valve stoppers (13, 15) each of which faces the spacer (16, 17) side of the annular valve body (14) in the axial direction and regulates the bending of the annular valve body (14) when the annular valve body (14) is bent to abut against the valve stopper (13, 15). The valve stoppers (13, 15) comprise: rings (131, 151) each of which has an axial thickness smaller than that of the spacer (16, 17) and is disposed in the inner periphery or outer periphery of the spacer (16, 17); and laminated annular plates (132, 152) laminated to the spacers (16, 17), respectively.

IPC Classes  ?

• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details
• F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
• F16F 9/508 - Means responsive to the velocity of movement of the piston

Abstract

The present invention inhibits a decrease in inference accuracy of a road surface condition. This calculation device comprises: a first determination unit (34) that, on the basis of behavior information detected in a predetermined position and first reference behavior information detected in a first region overlapping the predetermined position, determines whether the behavior information detected in the predetermined position corresponds to the first reference behavior information; a second determination unit (36) that, if the behavior information detected in the predetermined position is determined not to correspond to the first reference behavior information, on the basis of behavior information detected in a second region encompassing the entire first region and broader than the first region and second reference behavior information detected in the second region, determines whether the behavior information detected in the second region corresponds to the second reference behavior information; and a learning unit (30) that causes an AI model to machine-learn. If the behavior information detected in the second region is determined not to correspond to the second reference behavior information, the learning unit (30) updates the AI model with the behavior information detected in the second region as teacher data.

IPC Classes  ?

• G08G 1/00 - Traffic control systems for road vehicles
• G06N 20/00 - Machine learning