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1. 发明专利

JPH09240469A BRAKING DEVICE FOR ROLLING STOCK 失效
公开(公告)号：JPH09240469A
公开(公告)日：1997-09-16
申请号：JP4906996
申请日：1996-03-06
申请人： KAYABA INDUSTRY CO LTD , RAILWAY TECHNICAL RES INST
发明人： ABE YUKIO , SUZUKI TSUTOMU , KUMAGAI NORIMICHI , YASUDA HIDEYUKI
IPC分类号： B61H5/00 , F16D65/847
摘要： PROBLEM TO BE SOLVED: To enhance cooling properties for a rotating shaft, a rotor, a stator and the like, and also enhance braking performance. SOLUTION: A braking device for a rolling stock is provided with an air conducting passage 25 which is formed in a rotating shaft 5 so that air taken in out of an introducing port 21 opened to the side face of the boss part 9 of the rotating shaft 5 is so designed as to be exhausted to a spline part 13 at the outer circumference of the boss part, an inclined groove 24 which is formed in the groove bottom of the spline part 13 communicated with the air conducting passage 25 in such a way as to be gradually shallow as it goes far in the axial direction, and with an exhaust passage 28 which is partitioned so as to be formed among the inclined groove 24, a rotor 10 and the inner circumference of a stator 11. Air sucked in from an intake air introducing port as the rotating shaft 5 is rotated, is forwarded to the spline part 13 by centrifugal force received by the air conducting passage 25, and it is moved while being accelerated by centrifugal force in the exhaust passage 28 interspaced from the inclined groove, so that the rotating shaft 5, the rotor 10 and the stator 11 are thereby forcibly cooled.

2. 发明专利

JP2000095081A BRAKING TORQUE DETECTING DEVICE 失效
公开(公告)号：JP2000095081A
公开(公告)日：2000-04-04
申请号：JP27083698
申请日：1998-09-25
申请人： KAYABA INDUSTRY CO LTD , RAILWAY TECHNICAL RES INST
发明人： OIZUMI KENICHI , HASEGAWA IZUMI , YASUDA HIDEYUKI , YAMAZAKI DAISEI
IPC分类号： B60T8/00 , B61H5/00 , F16D66/00
摘要： PROBLEM TO BE SOLVED: To easily compute correct braking torque from the output of a strain gauge. SOLUTION: In a disc brake device with a brake caliper 1 supported to a brake fitting part 20 by support pins 13, 14 accommodated in pinholes 11a, 12a of a pair of brackets 11, 12, a strain gauge is fitted into an area on the outer peripheral surface of the bracket 11 or 12 on the opposite side to the rotating direction of a disc rotor and in an area within a range of 90 deg. on both sides around the axes of the support pins 13, 14 from the passing points P1, P2 of tangents of circular arcs R1, R2 passing intersection points Q2 between the pinholes 11a, 12a and the circular arcs R1, R2 passing the center of the support pins 13, 14 respectively with the center axes of the support pins 14, 13 as the center. Braking torque is computed on the basis of output from the strain gauge.

3. 发明专利

JPH10230850A DISK BRAKE OF RAILWAY ROLLING STOCK 失效
公开(公告)号：JPH10230850A
公开(公告)日：1998-09-02
申请号：JP3505097
申请日：1997-02-19
申请人： KAYABA INDUSTRY CO LTD , RAILWAY TECHNICAL RES INST
发明人： SUZUKI TSUTOMU , ABE YUKIO , YASUDA HIDEYUKI , KUMAGAI NORIMICHI , NAKANO MASASHI
IPC分类号： B61H5/00 , B61H13/38 , F16D55/224 , F16D65/02
摘要： PROBLEM TO BE SOLVED: To omit troublesome work in which the attaching position of a brake caliper is changed when a railway rolling stock travels on a route in which the rail distance is difference, in a railway rolling stock capable of changing the wheel distance. SOLUTION: In a railway rolling stock capable of changing the wheel distance, pins 7 for movably supporting a brake caliper 3 for pinching a disk rotor of a wheel 2 in the wheel distance variable range are provided to the vehicle side in the axle direction. At least two pins 7 are arranged in parallel with each other. The pins for floating and supporting the brake caliper are used. The brake caliper 3 is supported to the pins 7 through a bearing. Flexible dust seals 10 for covering the outer peripheries of the pins 7 are provided on both sides of the brake caliper 3.

4. 发明专利

JP2000095080A BRAKING TORQUE DETECTING DEVICE 失效
公开(公告)号：JP2000095080A
公开(公告)日：2000-04-04
申请号：JP27083598
申请日：1998-09-25
申请人： KAYABA INDUSTRY CO LTD , RAILWAY TECHNICAL RES INST
发明人： OIZUMI KENICHI , HASEGAWA IZUMI , YASUDA HIDEYUKI , YAMAZAKI DAISEI
IPC分类号： B60T8/00 , B61H5/00 , F16D66/00
摘要： PROBLEM TO BE SOLVED: To detect braking torque more accurately in a disc brake device for rolling stock. SOLUTION: A strain gauge 30 is fitted to a brake caliper of a disc brake device. In a braking torque computing means 40, a detection signal from the strain gauge 30 is multiplied by a proportional coefficient to compute brake torque, and the proportional coefficient is corrected by a proportional coefficient correcting means 41 according to the grade of braking pressure. A correcting strain gauge 35 is provided on the curved part inner peripheral side of the base end of an arm of the brake caliper, and the detection signal from the strain gauge 30 is corrected on the basis of a detection signal from the correcting strain gauge 35 so as to eliminate the influence of strain to the direction to tend to open the arm.

5. 发明专利

JPH10203366A BRAKE FORCE DETECTION DEVICE 失效
公开(公告)号：JPH10203366A
公开(公告)日：1998-08-04
申请号：JP1546597
申请日：1997-01-29
申请人： RAILWAY TECHNICAL RES INST , KAYABA INDUSTRY CO LTD
发明人： SUZUKI TSUTOMU , YASUDA HIDEYUKI , HASEGAWA IZUMI , YAMAZAKI DAISEI , KUMAGAI NORIMICHI
IPC分类号： G01L5/28 , B61H5/00
摘要： PROBLEM TO BE SOLVED: To detect an accurate brake force by installing at least a pair of strain detection means to a nearly symmetrical position for the basic plane of a brake caliper main body or support member and detecting the brake force by which the brake caliper brakes respective wheels by the detection signal. SOLUTION: At least one side of a brake caliper main body 2 and a brake shoe support, member 4a is constituted so as to include a position nearly symmetrical for one basic plane perpendicular to the rotation surface of a disc 1 and including the rotation shaft of the disc 1. Strain gauges 62a, 62b, 64a, 64b, 66a, 66b, 67a, 67b are provided to a position nearly symmetrical for a basic plane 11 while pairing for a support frame 5 or bent parts of an arm 4 32a, 32b, 34a, 34b, 36a, 36b, 37a, 37b respectively. These strain gauges are connected to a bridge circuit and the pressure difference of respective middle point voltage of two resistances is extracted as an output and utilized to the detection of a brake force.

6. 发明专利

JPH09240468A BRAKING DEVICE FOR ROLLING STOCK 失效
公开(公告)号：JPH09240468A
公开(公告)日：1997-09-16
申请号：JP4907096
申请日：1996-03-06
申请人： KAYABA INDUSTRY CO LTD , RAILWAY TECHNICAL RES INST
发明人： ABE YUKIO , SUZUKI TSUTOMU , KUMAGAI NORIMICHI , YASUDA HIDEYUKI
IPC分类号： B61H5/00 , F16D65/847
摘要： PROBLEM TO BE SOLVED: To try to cool rotors, stators and the like, and to prevent the occurrence of their abrasion. SOLUTION: A braking device for a rolling stock is provided with ducts 41a and 41b through which compressed air is introduced into a housing 6 in the vicinity of the circumference of a rotating shaft 5, an air conducting passage 25 which is formed in the rotating shaft 5 so that compressed air taken in out of an air introducing port at the side face of a boss part 9 is fed into a spline part 13, an injection passage which is formed so that air out of the air conducting passage is taken in out of the inner circumference of a rotor so as to be introduced to the side face of the rotor, and with an air exhaust duct 42 which guides air exhausted out of a gap between the rotor 10 and a stator 11 to the outside. Cooling air fed with pressure is led to the rotor 10 from the rotating shaft 5 while being accelerated by rotating centrifugal force so as to allow these to be forcibly cooled. By air injected out of the rotor 10 against the surface opposite to the stator 11, the rotor 10 when no brake is applied is prevented from being brought into contact with the stator 11, and the occurrence of their abrasion is thereby reduced.

7. 发明专利

JP2000092607A RAILROAD VEHICLE EDDY CURRENT DECELERATOR 失效
公开(公告)号：JP2000092607A
公开(公告)日：2000-03-31
申请号：JP26447298
申请日：1998-09-18
申请人： RAILWAY TECHNICAL RES INST , SUMITOMO METAL IND
发明人： KUMAGAI NORIMICHI , YASUDA HIDEYUKI , UCHIDA SEIGO , ARAKI KENJI
IPC分类号： B61H5/00 , B60L7/28
摘要： PROBLEM TO BE SOLVED: To provide a railroad vehicle eddy current decelerator which can solve the problems of a conventional ECB brake. SOLUTION: A disc 12 is attached to an axle 1 with a boss 11 therebetween. Bearing units 16a and 16b are attached to the axle 1 on both the sides of the boss 11. A semi-circular stator assembly 17 is detachably attached to the bearing units 16a and 16b so as to cover the disc 12 partially. The stator assembly 17 has pole pieces 17a which are fixed on both the sides of the stator assembly 17 so as to face both the sides of the disc 12 and to be arranged on the respective same circles with predetermined intervals, a row of inside permanent magnets 17b which are fixed to positions facing the inner circumferential parts of the pole pieces 17a on the opposite side of the disc 12 so as to have their N-poles and S-poles arranged alternately, a row of outside permanent magnets 17c which are fixed to positions facing the outer circumferential parts of the pole pieces 17a so as to have their N-poles and S-poles arranged alternately and to have them able to be turned by one pitch of the pole pieces 17a, and a hydraulic cylinder 17k which turns the row of the outside permanent magnets 17c.

8. 发明专利

JPH10267055A BRAKING TORQUE SENSING METHOD AND DEVICE 失效
公开(公告)号：JPH10267055A
公开(公告)日：1998-10-06
申请号：JP6981297
申请日：1997-03-24
申请人： AKEBONO BRAKE IND , RAILWAY TECHNICAL RES INST
发明人： YOSHIZAWA SHIGERU , FURUKAWA HITOSHI , SUWA ICHIRO , YASUDA HIDEYUKI , HASEGAWA IZUMI , YAMAZAKI DAISEI , KUMAGAI NORIMICHI
IPC分类号： G01L5/28 , B61H5/00 , F16D65/00 , F16D66/00 , G01M17/007
摘要： PROBLEM TO BE SOLVED: To secure high reliability and durability with a simple structure of a brake device by sensing strain rates generated on specified positions due to braking torque as electric rates, and inversely operating the torque required for generating the electric rates as braking torque. SOLUTION: Two specified positions are sensed in their strain rates by means of a strain gage 33a, and their temperatures by means of a temperature sensor 35. The strain rates are thermally corrected by means of a thermally correction circuit 38. The strain rates after thermal correction are converted into torque by means of a strain-torque conversion circuit 39. The torque to generate the strain is calculated in each specified positions. Torque values are meanized by means of a statistical treatment circuit 40. The meanized value is evaluated through other statistical value treatments. After reducing an erroneous ratio, it is output as braking torque. The output from such a computation device 37 is fed back to an automatic controlling circuit of the brake device, and adapted to deceleration controlling. It is thus possible to secure high reliability and durability with a simple structure.

9. 发明专利

JPH09221028A BRAKE EQUIPMENT 失效
公开(公告)号：JPH09221028A
公开(公告)日：1997-08-26
申请号：JP2799896
申请日：1996-02-15
申请人： RAILWAY TECHNICAL RES INST , MITSUBISHI HEAVY IND LTD
发明人： HASEGAWA IZUMI , YASUDA HIDEYUKI , YAMAZAKI DAISEI , KUMAGAI NORIMICHI , TOYOFUKU TOSHIHIRO , OKESAWA KUNIAKI , SETO TOSHITAKA , NISHIMURA MASAAKI , YABU HIROAKI
IPC分类号： B60T8/00 , B61H1/00
摘要： PROBLEM TO BE SOLVED: To obtain a braking equipment capable of accurately measuring the actual braking force and convenient for facilely controlling the braking force. SOLUTION: A braking equipment is provided with a push rod 6 pivoted by a shoe head through a horizontal pivot 20, hangers 8a, 8b for suspending the pivot 20 and the push rod 6, and an air cylinder connected to the push rod 6 through a vertical lever. The push rod 6 and the pivot 20 have their shaft center lines crossing each other and connected together in the condition of not abling the pivot 20 to make a relative turning movement in the shaft turning direction. A plural number of detecting units, a pair of strain gauge as one group, are arranged, in linear symmetrically to the pivot 20 shaft line, on the surface of the pivot 20 crossing the surface including the shaft centers of the push rod 6 and the pivot 20 by positioning in a plural number of places away from the axial direction and the strain gauges are stuck on the pivot 20 surface in a posture of crossing each other and electrically connected together forming a bridge.

10. 发明专利

JPH0891180A VEHICULAR DISC BRAKE DEVICE 失效
公开(公告)号：JPH0891180A
公开(公告)日：1996-04-09
申请号：JP23105894
申请日：1994-09-27
申请人： RAILWAY TECHNICAL RES INST , TOYO ELECTRIC MFG CO LTD
发明人： KUMAGAI NORIMICHI , YASUDA HIDEYUKI , OKAZAKI KAZUHIKO
IPC分类号： B61H1/00 , B60T1/06 , B61H5/00 , F16D55/224
摘要： PURPOSE: To provide a vehicular disc brake device by which a vehicle traveling at high speed can be stopped without damaging pads of brake blocks by a fire. CONSTITUTION: At least two or more brake blocks 7 are installed on a holding metal fitting 4a, and brake levers 2 and 22 are installed in a central part of the holding metal fitting 4a. A driving mechanism composed of a cylinder 5 and a return spring 6 is arranged on the other end of the brake levers 2 and 22. When the cylinder 5 is driven, the brake levers 2 and 22 rotate with brake lever fulcrum parts 2d and 22d as the axis, and the brake blocks 7 are brought into pressure contact with a disc surface 9b of a wheel 9, and braking force is applied to the wheel. Since the brake blocks 7 are arranged by two or more pieces, a quantity of braking heat borne by a pad of a single braking block can be reduced, and damage of the pad by a fire can be reduced. Since the brake blocks 7 are installed so as to be movable to the brake levers 2 and 22, the brake blocks can be contacted under uniform pressure with the disc surface of the wheel.

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