| SHOWA CORPORATION Patent applications |
| Patent application number | Title | Published |
|---|
| 20120073961 | Electric Corrosion Preventing Structure of Marine Vessel Propelling Machine - In a electric corrosion preventing structure of a marine vessel propelling machine, a cylinder is integrally formed in a cylinder block, an electric connection portion is provided in a portion in which a rod guide is fixed to the cylinder, an electric connection portion is provided in a portion in which a piston is fixed to a rod in an inner portion of the cylinder, and the piston fixed to the rod strikes against the rod guide in an electrically connected state, at a maximum extension when the rod protrudes out of the cylinder. | 03-29-2012 |
| 20120043156 | ELECTRIC POWER STEERING DEVICE - An electric power steering device including an input shaft to which a steering wheel is connected, an output shaft connected to a wheel side, a torsion bar provided between the input shaft and the output shaft, and a torque sensor that detects steering torque input from the steering wheel. An electric motor is driven in accordance with the torque detected by the torque sensor. A worm wheel is provided on the output shaft to transmit rotation of the electric motor to the output shaft in a housing, wherein a boss of the worm wheel is fitted into an outer circumference of the output shaft, and a bearing fitted into the outer circumference of the boss is supported on the housing. | 02-23-2012 |
| 20110274841 | COIL SPRING COATING PORTION FORMING METHOD AND APPARATUS - In a coating portion forming method of a coil spring, the method includes steps of heating the coil spring, dipping the heated coil spring in a thermosetting resin solution, and reheating the coil spring which is pulled up from the thermosetting resin solution. | 11-10-2011 |
| 20110227301 | Vehicle Height Adjusting Apparatus - A vehicle height adjusting apparatus of a hydraulic shock absorber has a hydraulic pump carrying out a pumping action by an extending and retracting motion of a piston rod with respect to a damper tube so as to feed a working fluid to a jack chamber of a hydraulic jack, and a blow valve releasing a jack pressure of the jack chamber which is pressurized by a plunger of the hydraulic jack exposed to a spring load on a suspension spring. | 09-22-2011 |
| 20110187027 | MANUFACTURING METHOD OF POWER TRANSMISSION SYSTEM MOLDED PRODUCT AND APPARATUS THEREOF - A manufacturing method of a power transmission system molded product by infusing resin constituents prepared by adding an additive composed of a magnetic material to a molten resin into a cavity of a metallic mold and solidifying the resin constituents, wherein the additive composed of the magnetic material is oriented in a fixed direction by applying a magnetic field to a resin molded product infused into the metallic mold before solidification by a magnetic field orientation structure provided in the metallic mold. | 08-04-2011 |
| 20110176909 | VEHICLE HYDRAULIC CONTROL UNIT - A vehicle hydraulic control unit capable of preventing a vane from being pulled into a vane groove when a vane pump driven by an engine stops. The present hydraulic control unit supplies discharge oil in an external pump to a vane back pressure chamber of a vane pump, when an engine stops. | 07-21-2011 |
| 20110133413 | PROPELLER SHAFT APPARATUS - In a propeller shaft apparatus in which a propeller shaft is supported by a support mechanism via a bearing, and the bearing is sealed from an external environment by a dust seal attached to an inner periphery of the support mechanism and coming into sliding contact with an outer periphery of the propeller shaft, the dust seal includes at least first and second lips extending to both sides in an axial direction, an inner diameter of a leading end of one lip of the first and second lips is made smaller than an inner diameter of a leading end of the other lip, and a cross sectional area of the one lip is made larger than a cross sectional area of the other lip. | 06-09-2011 |
| 20110077091 | SHOCK ABSORBING PROPELLER SHAFT APPARATUS FOR MOTOR VEHICLE - In a shock absorbing propeller shaft apparatus for a motor vehicle, a stop ring is fitted to an annular groove provided in an outer periphery of a shaft-like inner close to a base end with respect to a portion to which an inner race of a constant velocity joint in the shaft-like inner is fitted, a collar main body of a collar is inserted to an outer periphery between a portion to which the inner race of the constant velocity joint in the shaft-like inner is fitted and a portion to which the stop ring is fitted, in the outer periphery of the shaft-like inner, and a flange portion protruding out in an axial direction from an outer diameter side of one end of the collar main body is attached to cover an outer periphery of the stop ring. | 03-31-2011 |
| 20110024957 | VEHICLE HEIGHT ADJUSTING APPARATUS - A vehicle height adjusting apparatus of a hydraulic shock absorber has a hydraulic pump carrying out a pumping action by an extending and retracting motion of a piston rod with respect to a damper tube so as to feed a working fluid to a jack chamber of a hydraulic jack, and a blow valve releasing a jack pressure of the jack chamber which is pressurized by a plunger of the hydraulic jack exposed to a spring load on a suspension spring. | 02-03-2011 |
| 20100326780 | Hydraulic Shock Absorber - In a hydraulic shock absorber, a damping force generating device is provided between a piston side oil chamber and a rod side oil chamber of a cylinder, and in a compression stroke, a compression side flow path for circulating oil in the piston side oil chamber of the cylinder through an outside flow path of the cylinder toward the rod side oil chamber is provided in the damping force generating device, while in an extension stroke, an extension side flow path for circulating the oil in the rod side oil chamber of the cylinder through the outside flow path of the cylinder toward the piston side oil chamber is provided in the damping force generating device. | 12-30-2010 |
| 20100242244 | PROCESSING METHOD OF SLOTTED HOLE - In a processing method of a slotted hole for processing a hole in a processed subject and further processing a slot intersecting the hole, a process for generating a compressive residual stress c is applied to an inner diameter portion of the hole before the slot is processed. | 09-30-2010 |
| 20100181139 | ELECTRIC POWER STEERING APPARATUS - In an electric power steering apparatus, a worm gear is structured such that a leading end of a leading end shaft of the worm gear is always pressed and supported by a part in a peripheral direction of a diameter enlarged inner diameter portion of a collar which is urged by an elastically urging body, and is always urged toward a side coming close to a center shaft of a worm wheel. | 07-22-2010 |
| 20100148412 | HYDRAULIC SHOCK ABSORBER - In a hydraulic shock absorber, a second washer, which is assembled around a lower end projection of a lower spring receiver and is retained to enlarged portions provided at the tip end of the lower end projection so that the enlarged portions are prevented from falling, is attached to a step portion of an axle bracket, and the tip end of an inner tube, which is threadedly engaged with the axle bracket, is supported by the second washer. | 06-17-2010 |
| 20100105261 | POWER STEERING APPARATUS OF WATERCRAFT WITH PROPELLER - In a power steering apparatus of a watercraft | 04-29-2010 |
| 20100101472 | POWER STEERING APPARATUS OF WATERCRAFT WITH PROPELLER - In a power steering apparatus of a watercraft with propeller applying an assist torque of an assist motor driven in correspondence to a steering direction and a steering force of a steering handle to a steering force transmission path to the propeller, an output side of the assist motor is provided with an inverse input interrupting apparatus transmitting an assist torque of the assist motor to the steering force transmission path, and interrupting an inverse input torque applied to the steering force transmission path from a side of the propeller caused by a rotational reaction force of a screw provided in the propeller with respect to the assist. | 04-29-2010 |
| 20090301804 | MOTOR-DRIVEN STEERING APPARATUS - In a motor-driven steering apparatus in which a handle stay provided with a steering handle is fixed to a steering shaft, and a motor-driven steering assist unit is interposed between the steering shaft and a tire wheel side steering member, and a taper coupling portion provided in the handle stay is coupled and fixed to a taper support portion provided in the steering shaft. | 12-10-2009 |
| 20090266657 | HYDRAULIC SHOCK ABSORBER - There is provided a hydraulic shock absorber including a spring receiver that is supported so as to be not rotatable with respect to the axle bracket. The spring receiver is divided into a spring receiver base portion that has an outer diameter smaller than an inner periphery of an axle-side tube, and a spring receiver cylindrical portion that is inserted into an inner periphery of the axle-side tube and a suspension spring is seated thereon. A lower end engagement portion provided at a lower end of the spring receiver cylindrical portion is seated on an upper end engagement portion provided at an upper end of the spring receiver base portion, so that the spring receiver cylindrical portion is concentrically set to the axle-side tube. | 10-29-2009 |
| 20090266656 | HYDRAULIC SHOCK ABSORBER - There is provided a hydraulic shock absorber in which fall prevention means, which is moored at a mooring portion provided to a spring receiver (spring receiver base portion) having been previously assembled to the axle bracket and prevents the fall of the spring receiver (spring receiver base portion), is provided at the axle bracket in an assembled state in which upper and lower ends of an axle-side tube are vertically inverted and an axle bracket is assembled to a lower end of the axle-side tube from above. | 10-29-2009 |
| 20090189367 | OUTER TUBE FOR FRONT FORK - An outer tube for a front fork having an FRP pipe body which is subjected to braiding processing using a braider, wherein the FRP pipe comprises a combination of braids interlacing with each other at an interlacing angle ±θ° with respect to a center axis of the pipe and warp fibers having an angle 0° with respect to the pipe center axis, rigidity of the plurality of warp fibers disposed at positions in a circumferential direction of the pipe is varied depending upon the positions in the circumferential direction of the pipe, and bending rigidity of the FRP pipe in the longitudinal direction is varied in the circumferential direction of the pipe. | 07-30-2009 |
| 20090189366 | OUTER TUBE FOR FRONT FORK - An outer tube for a front fork having an FRP pipe body which is subjected to braiding processing using a braider, wherein the FRP pipe comprises a combination of braids interlacing with each other at interlacing angle ±θ° with respect to a pipe center axis, a value of an interlacing angle ±θ° of the braids during the braiding processing period is varied, and bending rigidity in a longitudinal direction of the FRP pipe is varied in along longitudinal extent. | 07-30-2009 |
| 20090167121 | POSITIONING MECHANISM OF RESOLVER AND ELECTRICALLY -DRIVEN POWER STEERING APPARATUS - In the power steering apparatus, of the present invention, bobbins and a bus ring holder are coupled and fixed to a stator so as to be positioned at constant circumferential positions with respect to the stator, and a resolver stator is held by a groove portion of a bus ring holder so as to be positioned at a constant circumferential position with respect to the stator. A resolver rotor is positioned at a constant circumferential position with respect to a rotor. | 07-02-2009 |
| 20090152065 | TUBE EXPANDING METHOD AND APPARATUS OF DAMPER TUBE - In a tube expanding apparatus of a damper tube supporting a thrust force of a punch applied to the damper tube by a stopper at a time of retaining one end of the damper tube by the stopper, inserting the other end of the damper tube to a die, inserting the punch to the other end of the damper tube so as to propel, and expand the other end of the damper tube while carrying out an ironing operation, the apparatus is provided with a stopper releasing means for releasing the stopper at a time when a load in an axial direction applied to the damper tube due to an elongation by the ironing work of the damper tube increases over a critical load which is previously determined to be a smaller load than an expected buckling load in the damper tube. | 06-18-2009 |
| 20090136374 | Vane Pump - Provided is a vane pump. In the vane pump, a high-hardness main coating layer is provided on a distal end portion of each vane, and an intermediate coating layer having an intermediate hardness between a hardness of a base material of the vane and a hardness of the main coating layer is provided between the base material of the vane and the main coating layer. | 05-28-2009 |
| 20090130319 | COIL SPRING COATING PORTION FORMING METHOD AND APPARATUS - In a coating portion forming method of a coil spring, the method includes steps of heating the coil spring, dipping the heated coil spring in a thermosetting resin solution, and reheating the coil spring which is pulled up from the thermosetting resin solution. | 05-21-2009 |
| 20090107785 | HYDRAULIC SHOCK ABSORBER - In a hydraulic shock absorber, an outer operating oil chamber within an inner tube is communicated with a piston rod side oil chamber within a cylinder, an annular oil chamber is compartmentalized between an inner periphery of an outer tube and an outer periphery of the inner tube, the annular oil chamber is communicated with the outer operating oil chamber within the inner tube via an oil hole provided in the inner tube, a cross sectional area of the annular oil chamber is formed larger than a cross sectional area of a piston rod, and the hydraulic shock absorber has a volume compensating flow path which circulates the oil in an inner operating oil chamber or the outer operating oil chamber to an oil reservoir chamber in an expansion aside stroke in which the piston rod outgoes from the inner operating oil chamber, and a check valve which prevents the oil flow from the inner operating oil chamber or the outer operating oil chamber to the oil reservoir chamber in the expansion side stroke. | 04-30-2009 |
| 20090084644 | Hydraulic Shock Absorber - In a hydraulic shock absorber structured such that a vehicle body side tube and an axle side tube are slidably fitted, and a plurality of adjusting portions are provided in a cap sealed to an upper end opening portion of the vehicle body side tube, a plurality of adjusting portions are arranged side by side in a plan view of the cap. | 04-02-2009 |
| 20090062023 | Propeller Shaft - In the case that a paper damper comes into contact with a dynamic damper, an outer paper portion of the paper damper first comes into contact with an outer ring member of a dynamic damper. At this time, the outer paper portion and an inner paper portion of the paper damper do not come into contact with an inner weight of the dynamic damper. | 03-05-2009 |
| 20090056104 | Manufacturing Method of Electric Motor - In a manufacturing method of an electric motor, at a time of in-sequence arc welding each of one end of a plurality of lined-up connector terminals to each of a plurality of lined-up detection signal output terminals by a welding rod provided in a torch of an arc welding machine, the method connects each of the other ends corresponding to the respective one end of a plurality of connector terminals to each of earth terminals of the arc welding machine in sequence. | 03-05-2009 |
| 20090001683 | Steering Damping Apparatus of Two-Wheeled Vehicle - In a steering damping apparatus of a motorcycle in which a steering shaft is pivoted to a head pipe in a front end of a vehicle body frame, and a handlebar is attached to a steering bracket attached to the steering shaft, a casing of a rotary damper is fixed to a front surface lacing to a front side in a vehicle forward moving direction of the head pipe, and the steering damping apparatus has a rotation transmitting means for rotating a rotor shaft of the rotary damper from a neutral position on the basis of a rotation of the steering bracket from a neutral steering position. | 01-01-2009 |
| 20090001637 | Hydraulic Shock Absorber - In a front fork in which a partition wall member is provided in an inner periphery of an inner tube, a working fluid chamber is comparted under the partition wall member and an oil reservoir chamber is comparted over the partition wall member, a main suspension spring is interposed between an upper spring bearing in a piston rod side attached to an outer tube side and a lower spring bearing in a bottom portion side of the inner tube, within the working fluid chamber of the inner tube, and a sub suspension spring is interposed between an upper spring bearing in an upper end portion side of the outer tube side and a lower spring bearing in the partition wall member provided in an inner periphery of the inner tube, within the oil reservoir chamber of the inner tube. | 01-01-2009 |
| 20080315457 | Joint in Fluid Device and Method of Manufacture - In a manufacturing method of a joint in a fluid device, in which the joint is provided with an attaching portion attached to a connection port of the fluid device and a hose installation portion to which one end of a hose is installed, and the hose installation portion is provided with an outer diameter bulge portion in an intermediate portion in a range to which the hose is installed, an outer surface of a leading end side portion including the bulge portion of the hose installation portion is formed by an annular outer mold. | 12-25-2008 |
| 20080297010 | BRUSHLESS MOTOR - A brushless motor has a stator, a rotor rotatably disposed in an inner circumferential portion of the stator, and a resolver configured to detect a rotational position of the rotor with respect to the stator. The resolver has a resolver stator disposed at a fixed circumferential position with respect to the stator, and a resolver rotor disposed at a fixed circumferential position with respect to the rotor. | 12-04-2008 |
| 20080267550 | Propeller Shaft for Motor Vehicle - In a propeller shaft for a motor vehicle, an outer periphery of an outer end of an annular support member is formed as an expanded poison. | 10-30-2008 |
| 20080267549 | Propeller Shaft for Motor Vehicle - In a propeller shaft for a motor vehicle, a cover is provided in an outer end of an annular support member, the cover extends to an inner side in a radial direction from an outer end of the annular support member, and the extended end sets a gap formed with respect to an outer shell of a stopper means so as to be open in an axial direction to an inlet of a labyrinth seal. | 10-30-2008 |
| 20080243338 | Motor-Driven Power Steering Apparatus - A motor-driven power steering apparatus is provided with a sub control system including a map memory means storing a first window time setting map M | 10-02-2008 |
| 20080230302 | Motor-Driven Power Steering Apparatus - The invention provides a motor-driven power steering apparatus provided with a fault diagnosing means diagnosing a fault of a board temperature detecting apparatus on the basis of an armature current Im detected by a motor current detecting means and a board temperature Tb of the control board detected by the board temperature detecting apparatus, and a target current suppressing means suppressing a target current Iq at a time when the fault diagnosing means diagnoses that the board temperature detecting apparatus is out of order | 09-25-2008 |
| 20080210477 | Leg Joint Assist Device of Legged Mobile Robot - An assist device | 09-04-2008 |
