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1. 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.

2. 发明专利

JPH06107175A BRAKE SHOE FOR MAGNETIC LEVITATION TYPE VEHICLE 失效
公开(公告)号：JPH06107175A
公开(公告)日：1994-04-19
申请号：JP28221292
申请日：1992-09-29
申请人： RAILWAY TECHNICAL RES INST , AKEBONO BRAKE IND
发明人： KUMAGAI NORIMICHI , YASUDA HIDEYUKI , DEMURA KANAME , SHINDO EIJI
IPC分类号： B61B13/08 , B61H7/12 , F16D65/06
摘要： PURPOSE:To make it lighter in weight and prevent any deformation from occurring by making up a support member body with a nonmagnetic metal of low temperature conductivity, forming a main contact part at both ends in the sliding frictional direction and a sub contact part in an intermediate part, respectively, and setting up each shoe block, consisting of carbon fiber reinforced carbon composite materials made in both orienting and sliding frictional directions of a carbon fiber, in each space between these contact parts. CONSTITUTION:A platelike support member 1 is formed with a nonmagnetic metal of low temperature conductivity, while each of main contact parts 1b, 1c is installed at both ends in a sliding frictional direction A of its support body 1a, and sub contact parts 1d, 1e are installed in the intermediate part. In succession, those of opposed surfaces of the adjacent main contact parts 1b, 1c and sub contact parts 1d, 1e are formed into each of inclines 2g, 2f expanding inward, and each shoe block 2 is set up in each space between these opposed surfaces. This shoe block 2 uses carbon fiber reinforced carbon composite materials being lighter in weight and excellent in heat resistance as the main components, and it is constituted after according the orienting direction of a carbon fiber with the sliding frictional direction A.

3. 发明专利

JPH06278607A METHOD FOR USING BRAKE FOR VEHICLE AND ITS BRAKING DEVICE 失效
公开(公告)号：JPH06278607A
公开(公告)日：1994-10-04
申请号：JP8782093
申请日：1993-03-24
申请人： RAILWAY TECHNICAL RES INST , AKEBONO BRAKE IND
发明人： KUMAGAI NORIMICHI , YASUDA HIDEYUKI , DEMURA KANAME
IPC分类号： B60L7/24 , B61H11/14
摘要： PURPOSE:To improve the life of a brake for a vehicle by using the brake for the vehicle when the electric braking power by a main electric motor is attenuated in the low speed traveling range where the regular brake is used, and using the multi-plate type braking device in supplementing the braking power of the regular brake in the emergency braking case, or by using it in an emergency when the braking power by the main electric motor becomes invalid. CONSTITUTION:A brake 16 for wheels where metallic friction plates 15a, 15b are used on the sliding surface with the wheels 3 is used as a supplement to a regular brake when the electric braking power by a main electric motor 5 is attenuated in the low speed traveling range where the regular brake is used. On the other hand, a multi-plate type braking device 10 which is connected to a main electric motor shaft 6 through a coupling 9 and consists of a plurality of rotors and stators, and a C/D composite friction material is used when the braking power of the regular brake is supplemented when being used as the emergency brake, when the electric braking power by the main electric motor 5 becomes invalid, and when the emergency brake is applied in the traveling range at full speed.

4. 发明专利

JPH04143152A BRAKE SHOE FOR MAGNETIC LEVITATION TYPE VEHICLE 失效
公开(公告)号：JPH04143152A
公开(公告)日：1992-05-18
申请号：JP26733690
申请日：1990-10-04
申请人： RAILWAY TECHNICAL RES INST , AKEBONO BRAKE IND
发明人： KUMAGAI NORIMICHI , YASUDA HIDEYUKI , SHINDO EIJI , DEMURA KANAME
IPC分类号： B61B13/08 , B60T1/14 , F16D65/04
摘要： PURPOSE:To enhance reliability and durability by specifying respective material to be used for end support members which are fixedly provided for the both ends of each back plate in the longer direction, and main friction members interposed at the intermediate section of each back plate in the longer direction, and thereby interposing a heat insulating shock absorbing member between each main friction member and each back plate. CONSTITUTION:At the braking time of emergency landing for a magnetic levitation type vehicle, braking force is produced by sliding friction between each one of end support members 2 and main friction members 1 and the surface of a concrete track 14. And a shoe backing member 11 is subjected to moment due to friction force around a mounting pin 15 for a longitudinal support member 12 and a vertical support member 13, so that the end support member 2 at the front side position in the running direction and the main friction members 1 are subjected to theoretically great bearing pressure P. In this case, each end support member 2 is made of Mo, Mo alloys or stainless steel, it is thereby hardly damaged by cracking and the like, and the end support members and the action of heat insulating shock absorbing members 3b therefore combine to effectively prevent the main friction members 1 from being damaged. And the main friction members 1 made of C/C composites hardly reduce their own strength and frictional coefficient even at high temperature, thereby making it possible to effectively apply the brake for the vehicle.

5. 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.

6. 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.

7. 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.

8. 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.

9. 发明专利

JPH10184749A CONCRETE SLIDING MATERIAL AND ITS MANUFACTURE 失效
公开(公告)号：JPH10184749A
公开(公告)日：1998-07-14
申请号：JP35014996
申请日：1996-12-27
申请人： NIPPON OIL CO LTD , RAILWAY TECHNICAL RES INST
发明人： HAYATA YOSHIHO , UCHIDA DAISUKE , ISHII MITSUHIRO , KONO TAKESHI , YASUDA HIDEYUKI , NAKANO MASASHI , KUMAGAI NORIMICHI
IPC分类号： B61H7/12 , F16D69/02
摘要： PROBLEM TO BE SOLVED: To stabilize a sliding characteristic by making a fiber reinforcing composite material formed of an inorganic fiber and an inorganic matrix and orientating a specified percentage of the volume content of the inorganic fiber to the outside of a sliding surface. SOLUTION: A fiber reinforcing composite material is formed by using an inorganic fiber such as a carbon fiber or a ceramic fiber and an inorganic matrix such as carbon or ceramics as constituting elements. By using this fiber reinforcing composite material, a concrete sliding material is made. In this case, at least 1% of the volume content of the inorganic fiber is orientated to the outside of a sliding surface. Normally, a range of 1% to about 30% is preferable. Surface outside orientation means that a fiber is orientated above about 5 deg. and lower than 90 deg. and above -90 deg. and lower than -5 deg.. If this surface outside orientated fiber is lower than 1% range, not stable sliding characteristic is provided. If it is more than this range, no satisfactory strength is provided for the sliding material.

10. 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.

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