Kabushiki Kaisha Daikin Seisakusho

Exedy Corporation

Daikin Clutch Corporation

Minoru Abe

Heiji Fukutake

Yasuhiko Eguchi

Naoki Tomiyama

Koji Kajitani

Toru Fujii

Akira Takeuchi

Kyousuke Kitazawa

Ryouji Wakizaka

Atsushi Ueda

Kouji Kajitani

Koji Hiramoto

Tetsuji Takano

Tetuji Takano

Shinpei Fujiwara

Tetuo Rikitake

A suspension fork 10 for a bicycle is provided with a fork portion 40 for supporting a front wheel 12, a sleeve-like first fork stem 41, a sleeve-like second fork stem 42, a coil spring 43, an adjustment bolt 44, and a coupling portion 45. The first fork stem 41 is rotatably supported by a head portion 21, and the second fork stem 42 extends from the fork portion into an interior of the first fork stem 41. The coil spring 43 biases the first fork stem 41 and the second fork stem 42 away from each other. The coupling portion 45 includes a rotation preventing key 51 and an oblong slit 52 for coupling the first fork stem 41 and the second fork stem 42, and allows the first and second fork stems to be movable in an axial direction relative to each other but unrotatable relative to each other.

Bicycle suspension fork

A bicycle is provided with a frame and a drive portion. The frame is at least partially hollow, and at least part of the drive portion is disposed in an interior of the frame. The drive portion includes a crank and a plurality of transmission means, in which one of the transmission means rotates another transmission means at a rotational speed higher than a rotational speed of the crank, which in turn rotates the rear wheel of the bicycle.

Bicycle

A vehicle which goes up and down stairs includes a vehicle body (101), front and rear wheels (102) and (103) provided at the front and rear of the vehicle body (101), respectively, front and rear auxiliary wheels (105) and (107) for lifting up or down the front and rear wheels (102) and (103) by one step of stairs, respectively, a driving unit for driving each wheel, a pivoting unit for pivoting the front and rear auxiliary wheels (105) and (107), sensors (121) to (124) for detecting a riser portion of stairs, and a control unit (120) for controlling the driving unit and the rotating unit in accordance with results of the sensors (121) to (124). Since the vehicle goes up and down stairs by rotation of the auxiliary wheels (105) and (107), a corner portion of the step of stairs is not damaged while the vehicle goes up and down stairs.

Stair climbing vehicle

A main tire body, mounted to the rim (3) of a wheel, includes in one embodiment, an annular tire material (6) and a fiat wound spring ring (8) disposed within the annular tire material (6). The annular tire material (6) is a material with a cross section that can form in a semi-circular annular space (7) between the rim (3). The flat wound spring ring (8) a is annularly arranged within the annular space (7). In another embodiment, the main tire body includes an annular first tire material (10), a second tire material (11), and a plurality of airtight chambers (15) which help to absorb impacts. The first tire material (10) is mounted to the rim (3). The second tire material (11) is an annular material with an elastic body attached to the outer peripheral side of the first tire material. The airtight chambers portion (15) are formed in the second tire material between the first tire material. In another embodiment, the main tire body includes an annular first tire material (20), and a second tire material (21). The second tire material (21) is an annular material with an elastic body attached to the outer peripheral side of the first tire material. An airtight annular chamber (22) is formed between the first tire material (20) and second tire material (21). A flat spring ring (24) disposed within the annular chamber (22) to absorb impacts.

Puncture proof tire

The shock absorber mechanism for a bicycle (10) is a device mounted between the handlebar stem (4) and fork stem (5) of a bicycle and includes a sleeve case (11), a spring (18), and a free cushion bushing (20). The sleeve case (11) is mounted to the lower edge of the handlebar stem (4) and joins when the upper portion of said fork stem (5) slides freely and does not rotate. The spring (18) is arranged between the sleeve case (11) and the fork stem (5). The free cushion bushing (20) is mounted to the lower edge of the sleeve case (11) and can be freely installed and removed as well as slide on the outer peripheral surface of the fork stem (5) controls relative movement of the handlebar stem (4) and the fork stem (5) caused by friction on the outer peripheral surface of the fork stem (5). One purpose of the present invention is to allow for easy adjustment of the dampening characteristics of a dampener depending on bicycle riding conditions and rider requirements.

Shock absorber for a bicycle front fork

A vehicle which goes up and down stairs includes a vehicle body 101, front and rear wheels 102 and 103 provided at the front and rear of the vehicle body 101, respectively, front and rear auxiliary wheels 105 and 107 for lifting up or down the front and rear wheels 102 and 103 by one step of stairs, respectively, a driving unit for driving each wheel, a pivoting unit for pivoting the front and rear auxiliary wheels 105 and 107, sensors 121 to 124 for detecting a riser portion of stairs, and a control unit 120 for controlling the driving unit and the rotating unit in accordance with results of the sensors 121 to 124. Since the vehicle goes up and down stairs by rotation of the auxiliary wheels 105 and 107, a corner portion of the step of stairs is not damaged while the vehicle goes up and down stairs.

A clutch unit in which a facing (9) of a clutch disc (5) is disposed between a flywheel (1) and a pressure plate (6) so as to engage and disengage the clutch unit by moving the pressure plate (6) in its axial direction; a projection (6a) extending to an axis side is formed integrally on the pressure plate (6), a release bearing (20) is made directly engage with the projection (6a), and a release sleeve (24) supporting the release bearing (20) is made movable in the axial direction by a hydraulic cylinder (23).

Spring applied-hydraulically released clutch disc assembly

A release assembly to a pull-type clutch releases the clutch by extracting the radially inward portion of a diaphragm spring in the direction toward an associated transmission. The release assembly comprises a release bearing and its retainer. The release bearing includes an outer race fixed onto the radially inward margin of the diaphragm spring and an inner race grooved by a concavity along its radially inward portion the focus of which coincides with the pivotal deviation center of the release assembly. A complementarily convex surface along the retainer slidably mates with the concavity of the inner race, allowing the retainer in this release assembly to be slidable along inner race of the release bearing. Accordingly, if the clutch and the transmission come into misalignment, the resultant slide of the retainer on the inner race of the release bearing compensates.

Release assembly for a pull-type clutch

Release mechanism for pull-type clutch

Pipe joint

Release device for a clutch

A cylindrical cylinder chamber formed by a casing and having inlet and outlet ports for pressure liquid at its both axial ends is installed in a liquid passage communicating a liquid chamber of the master cylinder device with a liquid chamber of the slave cylinder device. A cylindrical friction member divided circumferentially into plural pieces contacting with a peripheral wall of the cylinder chamber, a moving body carrying the friction member, plural first urging members fitted to the moving body for pressing the friction member onto the peripheral wall of the cylinder chamber, and a second urging member for urging the moving body in its axial direction in order to locate the moving body at a prescribed axial position of the cylinder chamber, are installed in the cylinder chamber. An orifice is formed on the moving body or the friction member in the axial direction.

Hydraulic clutch releasing means

A fastening method of a casing etc., wherein a slit having an inclined surface extending substantially in a circumferential direction and coming up to a first flange side with an approach from a central portion to either side of the circumferential direction, is formed on a cylindrical part at an outer peripheral end of a second casing member, a part of the cylindrical part having said inclined surface is pressed in a casing inner side after fitting the second flange in the cylindrical part, thereby pressing the second flange on a first flange side by means of the inclined surface.

Fastening method for a casing

This invention relates to the clutch clearance uniforming device having the piston 21 fitted freely slidingly in the slave cylinder 1, the annular holder plate 22 contacting with the open end surface of said slave cylinder 1, the sleeve 23 fitted in the central hole of said holder plate 22 and slidable relatively to the slave cylinder 1 by the fixed distance in the axial direction, the first release rod 27 fitted into said sleeve 23 and one end thereof pressing on said piston 21, the second release rod 28 fitted likewise into said sleeve 23 and slidable relatively to said first release rod 27 by the fixed distance, the compression spring 30 interposed between the pair of said release rods 27, 28, and the lock ball 29 integrating the sleeve 23 and the pair of release rods 27, 28 by means of elastic force of said spring 30 at the time when said compression spring 30 stretches; characterized by that the stopper (31) for preventing the lock ball 29 from slipping out of the sleeve 23 is provided on said first release rod 27, and at the same time, the spring 33 for holding the position of the holder plate 22 is provided on the second release rod 28.

Growing community of inventors

Neyagawa, Japan

Minoru Abe