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51. 发明专利

JP2001001882A HYDRAULIC BOOSTER BRAKE DEVICE 失效
公开(公告)号：JP2001001882A
公开(公告)日：2001-01-09
申请号：JP17491999
申请日：1999-06-22
申请人： NISSIN KOGYO KK
发明人： MATSUNO ISAO
IPC分类号： B60T11/28
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic booster brake device capable of suppressing a useless consumption of power by reducing a load on a pump to the utmost. SOLUTION: This device comprises a pump body 10, a movable cylinder 12 fitted slidably to the pump body 10 and defining a pressure regulating chamber 17 and a discharge chamber 18 opposed to each other, a plunger 23 fitted slidably to the movable cylinder 12 and defining a pump chamber 26, a camshaft 30 reciprocating the plunger 23, and a pressure regulating spring 20 installed in the pressure regulating chamber 17 and energizing the movable cylinder 12 to the discharge chamber 18 side. Also, an intake port 27 opened and closed according to the reciprocating motion of the plunger 23 is provided in the movable cylinder 12. An unloader pump 5 is formed so that, when the movable cylinder 12 moves to the pressure regulating chamber 17 side in accompany with a pressure rise in the discharge chamber 18, the intake port 27 is brought into the open state. A proportional booster valve V extracting a booster hydraulic pressure in proportion to an output hydraulic pressure from a master cylinder M1 from the discharge chamber 18 to the booster port is connected to the discharge chamber 18, and a wheel brake B is operated by the booster hydraulic pressure extracted to the booster port 52.

52. 发明专利

JP2000337408A CALIPER BODY FOR DISC BRAKE FOR VEHICLE 失效
公开(公告)号：JP2000337408A
公开(公告)日：2000-12-05
申请号：JP14825699
申请日：1999-05-27
申请人： NISSIN KOGYO KK
发明人： KOBAYASHI NAOKI
IPC分类号： F16D55/228 , F16D65/02 , F16D65/18
摘要： PROBLEM TO BE SOLVED: To improve productivity and assemblability of a caliper body and to reduce the number of machining man-hours after formation of a caliper body. SOLUTION: A pair of caliper half-bodies 4 and 4 molded in the same shape by a single mold are used in a caliper body 3. A union hole 23 and a bleeder hole are after-formed in the same shape in the caliper half-bodies 4 and 4 after molding, and the caliper half-bodies 4 and 4 in the same finishing shape are integrally coupled together through coupling bolts 14 and 14.

53. 发明专利

JP2000335400A HYDRAULIC BOOSTER DEVICE FOR BRAKE 失效
公开(公告)号：JP2000335400A
公开(公告)日：2000-12-05
申请号：JP14918099
申请日：1999-05-28
申请人： NISSIN KOGYO KK
发明人： MATSUNO ISAO
IPC分类号： B60T8/34 , B60T13/12
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic booster device for a brake which can freely dispose components, and be easily installed in a limited narrow space. SOLUTION: A proportional booster valve Vf to introduce the boosted hydraulic pressure proportional to the output hydraulic pressure of a master cylinder from a hydraulic pressure source for operating a wheel brake is provided, and this proportional booster valve Vf comprises a control piston 18 to demarcate the inside of a first cylinder hole 17 of a casing 13 into a controlled hydraulic chamber 20 to be communicated with the master cylinder and an atmospheric pressure chamber 19, a valve piston 22 which is fitted to a second cylinder hole 21 of the casing 13 and continuously connected to the control piston 18, a boosted hydraulic chamber 30 adjacent to the second cylinder hole 21, a reaction piston 31 connected to the valve piston 22 and whose end face is opposite to the boosted hydraulic chamber 30, an inlet valve 33 which is interposed in a first communication oil passage 39 to connect the boosted hydraulic chamber 30 to the hydraulic pressure source, and opened/closed in an interlocking manner with the advancing/retraction of the reaction piston 31, and an outlet valve 40 which is interposed in a second communication oil passage 41 to connect the boosted hydraulic chamber 30 to the atmospheric pressure chamber 19, and opened/closed in an interlocking manner with advancing/retraction of the value position.

54. 发明专利

JP2000335398A HYDRAULIC BOOSTER DEVICE FOR BRAKE 失效
公开(公告)号：JP2000335398A
公开(公告)日：2000-12-05
申请号：JP14918199
申请日：1999-05-28
申请人： NISSIN KOGYO KK
发明人： MATSUNO ISAO
IPC分类号： B60T13/12
摘要： PROBLEM TO BE SOLVED: To easily stabilize the braking force of a wheel at a desired constant value by dulling the responsiveness of a proportional booster valve when the output hydraulic pressure of a primary master cylinder is reduced. SOLUTION: This hydraulic booster device for a brake comprises a primary master cylinder, a hydraulic source, a controlled hydraulic chamber 20 to be communicated with an output port of the primary master cylinder, and a booster hydraulic chamber 30 to be communicated with a wheel brake, proportional booster valves Vf, Vr to introduce the boosted hydraulic pressure proportional to the hydraulic pressure of a controlled hydraulic chamber 20 into the boosted hydraulic chamber 30 from the hydraulic source are provided, and a uni-directional throttle valve 85 to give the resistance to the working fluid flow only in one direction from the controlled hydraulic chamber 20 to the proportional booster valves is interposed in oil passages 2f, 2r between the output ports of the primary master cylinder and the controlled hydraulic chamber 20 of the proportional booster valves Vf, Vr.

55. 发明专利

JP2000287416A MOTOR FOR PUMP OF ANTILOCK BRAKE DEVICE FOR VEHICLE 失效
公开(公告)号：JP2000287416A
公开(公告)日：2000-10-13
申请号：JP9167799
申请日：1999-03-31
申请人： NISSIN KOGYO KK
发明人： SHIMIZU MUTSUMI , MARUO TAKUYA , YAMASHITA ATSUSHI
IPC分类号： B60T17/02 , H02K13/00
摘要： PROBLEM TO BE SOLVED: To provide a motor for a pump of an antilock brake device for a vehicle resistant to vibration by preventing rattling of a brush holder by surely aligning it in the radial direction and the axial direction, and using no elastic members in alignment parts. SOLUTION: A brush holder 70 has a first protrusion 88 formed on the outer periphery, a fitting wall 70a wherein the protrusion 88 is flattened and fitted in a small diameter part 54b of a yoke 54, an abutting part 70b abutting against a step-difference part 56 between the small diameter part 54b and a large diameter part 54a of the yoke 54, and a second protrusion 86 protruding on the side of a device main body 32. A housing 72 is fitted in the inner wall of the large diameter part 54a of the yoke 54, the second protrusion 86 is crushed on the wall surface of the housing 72, and the brush holder 70 is forcibly clamped and held between the step-difference wall 56 and the wall surface of the housing 72.

56. 发明专利

JP2000280886A HYDRAULIC TYPE BAR HANDLE BRAKE DEVICE FOR VEHICLE 失效
公开(公告)号：JP2000280886A
公开(公告)日：2000-10-10
申请号：JP9140199
申请日：1999-03-31
申请人： NISSIN KOGYO KK
发明人： KOBAYASHI NAOKI
IPC分类号： B60T8/26 , B60T11/24 , B62L3/00
摘要： PROBLEM TO BE SOLVED: To let the caliper body of a current structure be used as is by reducing pipelines by half in number, keeping the structure simple with an exception of only interposing an interlocking valve to an existing brake device composed of two independent systems, and combining both the interlocking systems together, or combining each single system with the interlocking system together. SOLUTION: An interlocking valve 26 is formed of a stepped cylinder bores 31 equipped with large diameter cylinder bores 31a and 31a, and with a small cylinder bore 31b, and stepped pistons 32 and 32 having both a large diameter axial part 32a and a small diameter axial part 32b are housed in face-to-face so as to be slid. A first oil feeding chamber 33 is interposed between the small diameter axial parts 32b and 32b of the small diameter cylinder bore 31b, and a first oil feeding pipe 24 is connected with the first oil feeding chamber 33. A second oil feeding chamber 36 and a third oil feeding chamber 37 are partitioned in a space between a stepping part 35 and the large diameter axial part 32a so as to let a second oil feeding pipe 25 be connected with both the chambers 36 and 37. A first hydraulic pressure chamber 39 and a second hydraulic pressure chamber are partitioned in a space between the large diameter axial part 32a and a detent plug 38 so as to let the first oil feeding pipe 11 be connected with the first hydraulic pressure chamber 39, and a second oil feeding pipe 17 is connected with a second hydraulic pressure chamber 40.

57. 发明专利

JP2000280885A VEHICLE HYDRAULIC MASTER CYLINDER 失效
公开(公告)号：JP2000280885A
公开(公告)日：2000-10-10
申请号：JP8916899
申请日：1999-03-30
申请人： NISSIN KOGYO KK
发明人： KURODA KAZUHIRO
IPC分类号： B60T11/20 , B60T11/22
摘要： PROBLEM TO BE SOLVED: To prevent a push rod or pedal within a cabin from being returned to a driver's side as much as possible by providing a circumferential cut groove ruptured by an external force from the body front direction on at least the body lower part on the outside of the oil filling chamber of a cylinder body. SOLUTION: A cylinder body 11 has a V-shaped sectional cut groove 34 formed on the body lower position of a first oil filling chamber 23. This cut groove 34 ensures a sufficient strength necessary for the cylinder body 11 on the body lower side of the first oil filling chamber 23 while the inside thickness of the cut groove 34 is reduced to suppress the strength low by circularly cutting the circumferential surface of the cylinder body 11 in the same depth from the circumferential surface extending over the length of about 1/3 of the whole circumference thereof. Accordingly, when an excessive external force acts on the body front part as the collision of the body front part, the external force is transmitted to the cylinder body 11 of a hydraulic master cylinder 10 through an engine.

58. 发明专利

JP2000278905A FIXING STRUCTURE OF MOTOR FOR PUMP OPERATION OF ANTILOCK BRAKE DEVICE FOR VEHICLE 失效
公开(公告)号：JP2000278905A
公开(公告)日：2000-10-06
申请号：JP8357999
申请日：1999-03-26
申请人： NISSIN KOGYO KK
发明人： SHIMIZU MUTSUMI , MARUO TAKUYA
IPC分类号： B60T17/02 , H02K5/00 , H02K7/08
摘要： PROBLEM TO BE SOLVED: To provide a fixing structure of a motor for pump operation of an antilock brake device for a vehicle which can fix a motor easily to a device body of an antilock brake device for a vehicle, and reduce the number of components. SOLUTION: A closed-end cylinder type yoke 54 in which an aperture part 31 is formed is equipped with a flange part 55 stretching outward from the aperture part 31. A motor 7 for pump operation is fixed to a device body 32 via the flange part 55 of the yoke 54. A sealing member 80 sealing a part between the motor 7 and the device body 32 is interposed between the flange part 54 and the device body 32, at the position outside a part position where a housing 72 engages with the yoke 54.

59. 发明专利

JP2000266090A FRICTION PAD FOR DISC BRAKE 失效
公开(公告)号：JP2000266090A
公开(公告)日：2000-09-26
申请号：JP7565299
申请日：1999-03-19
申请人： NISSIN KOGYO KK
发明人： SHIMIZU ICHIRO
IPC分类号： F16D65/092
摘要： PROBLEM TO BE SOLVED: To enhance braking heat radiating performance of a friction pad, to improve force of rigidity of a back board, and to enhance sticking strength of the back board to a lining. SOLUTION: A back board 11 is formed into a two-plate structure that a material metal tube 20 cut into a desired dimension is crushed, and a hanging piece 11c is integrally formed from the material metal tube 20. One plate part 11a of the back board 11 is formed into a wavelike form, and the other plate part 11b thereof is formed into a flat plate shape. Both the plate parts 11a, 11b are mutually overlapped, and a plurality of ventilating holes 21 is formed between both the plate parts 11a, 11b. A lining is stuck to the peripheral surface of the one plate part 11a.

60. 发明专利

JP2000257650A HYDRAULIC CLUTCH RELEASE DEVICE 失效
公开(公告)号：JP2000257650A
公开(公告)日：2000-09-19
申请号：JP6232199
申请日：1999-03-09
申请人： NISSIN KOGYO KK
发明人： HIGUCHI NORIHISA
IPC分类号： F16D25/0635
摘要： PROBLEM TO BE SOLVED: To secure waterproof and dustproof propeties of a cylinder chamber and slidability of a ring piston for a hydraulic clutch release, while maintaining the tentatively assembled simple structure of the clutch release device until the clutch release is put together with a vehicle body. SOLUTION: A bellows-like rubber boot 20 projected over a return spring 10 is placed between a large diameter part 4a of a cylinder housing 4 and a flat part 8b of a bearing support member 8. Peritonea 20d adjacent to the bellows-like part 20c are coupled together via a thin film 20e. In setting, the return spring 10 is allowed to expand by tearing off the thin film 20e with pulling force of a ring piston 6.

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