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1. 发明专利

JPH11141579A FLOAT TYPE CALLIPER BRAKE DEVICE 失效
公开(公告)号：JPH11141579A
公开(公告)日：1999-05-25
申请号：JP30292397
申请日：1997-11-05
申请人： KAYABA INDUSTRY CO LTD
发明人： SUZUKI TSUTOMU , OGAWARA YOSHIYUKI
IPC分类号： B61H5/00 , F16D55/224 , F16D65/02
摘要： PROBLEM TO BE SOLVED: To stabilize the follow-up performance of callipers, to suppress eccentric wear of a brake shoe resulting from uneven contacting, and to lessen fine vibration transmitted to a vehicle body. SOLUTION: A float type calliper brake device in which callipers are movable relative to a supporting frame, is equipped with two sleeves 18 and 18' where two parallel supporting pins 6 and 6' to couple the callipers with the supporting frame are fitted slidably and a vibration-proof rubber piece 21 furnished on the peripheries of the sleeves 18 and 18', wherein the supporting frame is furnished with mounting holes 22 and 22' in which the sleeves 18 and 18' are supported through the rubber piece 21. Thereby the follow-up performance of the callipers is stabilized, and eccentric wear of each brake shoe is suppressed, and fine vibration at the time of brake application is not likely transmitted to a vehicle body.

2. 发明专利

JP2002235780A DISC BRAKE DEVICE 失效
公开(公告)号：JP2002235780A
公开(公告)日：2002-08-23
申请号：JP2001034254
申请日：2001-02-09
申请人： KAYABA INDUSTRY CO LTD
发明人： OGAWARA YOSHIYUKI , SUZUKI TSUTOMU
IPC分类号： F16D65/18 , F16D55/224
摘要： PROBLEM TO BE SOLVED: To facilitate the attachment of a disc brake device having a parking brake mechanism, and to miniaturize the disc brake device. SOLUTION: The disc brake device comprises a brake disc 3 which rotates integrally with a wheel 2, a pair of brake shoes 5, 6 for applying frictional force across the brake disc 3, a brake caliper 1 for supporting the brake shoes 5, 6 on a vehicle body, arms 30, 40 rotatably supported by the brake caliper 1, and a parking brake mechanism 20 for urging the brakes shoes 5, 6 against the brake disc 3 by turning the arms 30, 40 on the principle of a lever. The brake caliper 1 of the disc brake device and a brake release actuator 21 are integrated into a unit.

3. 发明专利

JP2000291703A DISC BRAKE DEVICE 失效
公开(公告)号：JP2000291703A
公开(公告)日：2000-10-20
申请号：JP9871199
申请日：1999-04-06
申请人： KAYABA INDUSTRY CO LTD
发明人： OGAWARA YOSHIYUKI , SUZUKI TSUTOMU
IPC分类号： B61H5/00 , F16D65/18 , F16D65/20
摘要： PROBLEM TO BE SOLVED: To exceedingly facilitate the checking, repair and exchange of components of a disc brake device to shorten working time required for them by providing a caliper with an attaching hole for fitting the small diameter part of a hydraulic piston, and abutting a stepped part formed in the hydraulic piston part against an end face on the side of a brake disc of the caliper to make the hydraulic piston removable from the caliper. SOLUTION: An attaching method of a piston to a caliper is altered in the fillowing way. Namely, in a disc brake device, a fitting hole 9 is bored in the caliper 2, and hydraulic piston parts 33, 34 are provided with a small diameter part 23 to fit in the fitting hole 9 of the caliper 2 and a stepped part 24 to abut against an end face 25 on the side of the brake disc of the caliper 2. The hydraulic piston parts 33, 34 can thereby attach and detach on the side of the brake disc of the caliper 2.

4. 发明专利

JPH11270599A BRAKE SHOE STRUCTURE OF RAILWAY BRAKE 失效
公开(公告)号：JPH11270599A
公开(公告)日：1999-10-05
申请号：JP6877698
申请日：1998-03-18
申请人： KAYABA INDUSTRY CO LTD
发明人： OGAWARA YOSHIYUKI , KIRIHARA AKIRA
IPC分类号： F16D65/092 , F16D66/02 , F16D69/00 , F16D69/04
摘要： PROBLEM TO BE SOLVED: To prevent the partial wear, and to increase the service life by reducing the camber of a pad. SOLUTION: At least one slit 11 to split a pad into a plurality of parts in the longitudinal direction of a brake shoe 1 is provided. The slit 11 pierces the pad 2 from a face side to a back side leaving a part thereof, a wear detection groove 13 is provided on the extension of the slit 11 in a connection part 12 to connect the pads 2 on both sides left on one part of the slit 11, and the depth of the detection groove 13 corresponds to the wear limit from the surface of the pad 2.

5. 发明专利

JP2002195317A DISC BRAKE DEVICE 失效
公开(公告)号：JP2002195317A
公开(公告)日：2002-07-10
申请号：JP2000401104
申请日：2000-12-28
申请人： KAYABA INDUSTRY CO LTD
发明人： OGAWARA YOSHIYUKI , SUZUKI TSUTOMU
IPC分类号： B61H5/00 , F16D65/095 , F16D65/18 , F16D65/20
摘要： PROBLEM TO BE SOLVED: To secure proper and smooth follow-up performance of a pad to the rocking of a disc by enhancing the degree of freedom of setting a rocking range of the pad, in a disc brake device that is so composed as to always press the pad against the disc in parallel with each other. SOLUTION: This disc brake device is provided with a housing hole 38 formed in a caliper 30 as a support mechanism for the pad 33a (33b) so as to extend in a pressing direction of the pad 33a (33b), and a support member 40 having a part housed in the hole 38. A space (m) for permitting the support member 40 to rock in a predetermined region around a fulcrum P imagined on the pad 33a (33b) side on the same axis as that of the support member 40 is formed between the outer periphery of the support member 40 and the inner periphery of the hole 38. A spherical contact part 39 having a radius R of curvature centering the rocking fulcrum P of the support member 40 is formed between the bottom face of the hole 38 and the rear end of the support member 40.

6. 发明专利

JP2001317572A DISC BRAKE DEVICE 失效
公开(公告)号：JP2001317572A
公开(公告)日：2001-11-16
申请号：JP2000138150
申请日：2000-05-11
申请人： KAYABA INDUSTRY CO LTD
发明人： OGAWARA YOSHIYUKI , SUZUKI TSUTOMU
IPC分类号： F16D65/097 , F16D55/224
摘要： PROBLEM TO BE SOLVED: To provide a disc brake device having a structure capable of securely separating a brake shoe from a disc in releasing a brake and making the brake shoe follow to displacement of the disc in operating the brake. SOLUTION: The disc brake device supports a torque receiving pin 1 so as to float and displace in an axial direction of a wheel, and includes an inner spring 15 and an outer spring 16 of a coil shape for energizing the torque receiving pin 1 in a direction for separating from the disc 5, and a housing 17 for serially connecting the inner spring 15 and the outer spring 16. The torque receiving pin 1 is formed in a hollow tube shape. The inner spring 15 and the outer spring 16 are arranged inside the torque receiving pin 1 side by side so that the inner spring 15 is arranged on an inner side and the outer spring 16 is arranged on an outer side.

7. 发明专利

JP2001315516A LEVELING VALVE 失效
公开(公告)号：JP2001315516A
公开(公告)日：2001-11-13
申请号：JP2000137914
申请日：2000-05-11
申请人： KAYABA INDUSTRY CO LTD
发明人： OGAWARA YOSHIYUKI , SUZUKI TSUTOMU
IPC分类号： B60G17/056 , B60G17/052 , B61F5/10 , F16F9/02 , F16F9/34 , F16F15/04
摘要： PROBLEM TO BE SOLVED: To provide a leveling valve having a simple structure and superior assemblability, economic performance and maintenability and capable of independently adjusting the flow characteristic in air supplying and exhausting. SOLUTION: A piston 37 defines an exhaust side valve hole 32 into a high- pressure chamber 38 communicated with an air supply path 35 and a low pressure chamber 39 communicated with an exhaust port 36, and comprises a communication port 40 connecting two chambers, and a first valve 41 for selectively opening and closing the high-pressure chamber 38 to the air supply side valve hole 33 and the communication port of the piston 37, a second valve 42 for opening and closing the air supply port 34 to the air supply side valve hole 33, and a spring 43 for energizing the first and second valves in the directions opposite to each other, are inserted into the air supply side valve hole 33.

8. 发明专利

JPH11268649A BRAKING DEVICE FOR RAILWAY 失效
公开(公告)号：JPH11268649A
公开(公告)日：1999-10-05
申请号：JP7227798
申请日：1998-03-20
申请人： KAYABA INDUSTRY CO LTD
发明人： OGAWARA YOSHIYUKI
IPC分类号： B61H5/00 , F16D65/095 , F16D65/847
摘要： PROBLEM TO BE SOLVED: To avoid uneven wear of a pad so as to enhance durability and heat resistance of a piston portion, by attaching a reinforcement member on a reverse face of a back plate stretching along the longitudinal direction thereof and pressing the reverse face of the reinforcement member by the piston. SOLUTION: A brake block 1 is pressed by a piston 4 through a reinforcement member 11 at braking. The brake block 1 tries to warp due to the difference between coefficients of linear thermal expansion of a back plate 3 and a pad 2 by the frictional heat generated at this time. However, the strength and rigidity of the brake block 1 is enhanced by a reinforcement member 11 provided along the longitudinal direction of the back plate 3, inhibiting deformation of the brake block 1. Accordingly, uneven wear of the pad 2 due to braking is prevented. A portion of frictional heat at braking is conducted to the back plate 3 from the pad 2, transmitted to the piston 4 via the reinforcement member 11, and heat is radiated during this process. Temperature rise of the piston 4, and moreover the temperature rise of hydraulic fluid is prevented, and the durability of a piston seal member is increased.

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