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1. 发明专利

JP2001341628A BRAKE FLUID PRESSURE BOOSTER 失效
公开(公告)号：JP2001341628A
公开(公告)日：2001-12-11
申请号：JP2000164756
申请日：2000-05-30
申请人： NISSIN KOGYO KK
发明人： MATSUNO ISAO
IPC分类号： B60T13/12
摘要： PROBLEM TO BE SOLVED: To stably provide fluid pressure characteristics to gently boost the output fluid pressure of a secondary master cylinder after jumping an output from the secondary master cylinder at the start of a brake operation in a brake fluid pressure booster where a brake fluid pressure according to a boosted fluid pressure outputted from a proportional boosting valve acts on a wheel brake. SOLUTION: An auxiliary piston 69 moved forward by receiving the fluid pressure in a boosting liquid pressure chamber 29 and capable of working forward pressing force on an operating piston 48 until the operating piston 48 moves forward by a specified stroke from backward limit after fully reducing the volume of an input liquid pressure chamber 51 is fitted slidably to a second cylinder body 66 formed integrally with or formed separately from a first cylinder body 45 of a secondary master cylinder M2F.

2. 发明专利

JP2001334925A BRAKE HYDRAULIC SERVO UNIT 失效
公开(公告)号：JP2001334925A
公开(公告)日：2001-12-04
申请号：JP2000157971
申请日：2000-05-24
申请人： NISSIN KOGYO KK
发明人： MATSUNO ISAO
IPC分类号： B60T13/12
摘要： PROBLEM TO BE SOLVED: To stably provide a hydraulic characteristic of jumping the output of a secondary master cylinder in the initial stage of brake operation and then gently increasing the output hydraulic pressure of the secondary master cylinder in a brake hydraulic servo unit comprising a primary master cylinder for outputting a hydraulic pressure according to a brake operating input, a hydraulic pressure source, a proportional pressure intensifying valve for drawing and outputting the assisting hydraulic pressure according to the output hydraulic pressure of the primary master cylinder from the hydraulic pressure source, and the secondary master cylinder for operating a wheel brake with the brake hydraulic pressure according to the assisting hydraulic pressure outputted from the proportional pressure intensifying valve. SOLUTION: In this brake hydraulic servo unit, a proportional pressure reducing valve 8F for proportionally reducing the output hydraulic pressure of the proportional pressure intensifying valve 4F when the output hydraulic pressure of the valve 4F is a set pressure or more is provided between the proportional pressure intensifying valve 4F and the input hydraulic chamber 51 of the secondary master cylinder M2F.

3. 发明专利

JP2001328521A BRAKE FLUID PRESSURE BOOSTER 失效
公开(公告)号：JP2001328521A
公开(公告)日：2001-11-27
申请号：JP2000149839
申请日：2000-05-17
申请人： NISSIN KOGYO KK
发明人： MATSUNO ISAO
IPC分类号： B60T13/12
摘要： PROBLEM TO BE SOLVED: To enhance responsiveness of a proportional booster valve in a brake fluid pressure booster enabling to boost a wheel brake. SOLUTION: This brake fluid pressure booster is provided with a first master cylinder outputting fluid pressure according to the input of a brake operation, the proportional booster valve outputting the fluid pressure proportional to the output fluid pressure of the primary master cylinder by drawing it from a high pressure fluid pressure, a secondary master cylinder outputting the fluid pressure proportional to the output fluid pressure of the proportional booster valve to the wheel brake, and a cut valve 65 cutting off between the primary cylinder and the wheel brake according to increase in the output fluid pressure of the proportional booster valve. An orifice is interposed between the primary master cylinder and the cut valve, and the brake fluid flowing from the primary master cylinder to the wheel brake via the cut valve is suppressed by the orifice in the operation initial stage of the primary master cylinder so that the brake fluid is priory made to flow to the proportional booster valve.

4. 发明专利

JP2001180473A HYDRAULIC BOOSTER FOR BRAKE 失效
公开(公告)号：JP2001180473A
公开(公告)日：2001-07-03
申请号：JP37273199
申请日：1999-12-28
申请人： NISSIN KOGYO KK
发明人： MATSUNO ISAO
IPC分类号： B60T13/12
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic booster for brake having first and second secondary master cylinders capable of outputting a brake hydraulic pressure simultaneously even if a variation in sliding resistance is present between front and rear proportional booster valves. SOLUTION: This hydraulic booster for brake comprises a front proportional booster valve Vf outputting a boosted hydraulic pressure according to an output hydraulic pressure at a front output port 1f of a primary master cylinder M1, a rear proportional booster valve Vr outputting a boosted hydraulic pressure according to an output hydraulic pressure at a rear output port 1r of the primary master cylinder M1, a front secondary master cylinder M2f operated by a boosted hydraulic pressure output by the front proportional booster valve Vf to operate front wheel brakes Bfa and Bfb, and a rear secondary master cylinder M2r operated by a boosted hydraulic pressure output by the rear proportional booster valve Vr to operate the rear brakes Bra and Brb. Then, a hydraulic equalizer E equalizing the hydraulic pressures in both output hydraulic chambers 54 and 54 with each other is disposed between the output hydraulic chambers 54 and 54 of the front and rear secondary master cylinders M1f and M2r.

5. 发明专利

JP2001146932A VEHICULAR DISK BRAKE DEVICE 失效
公开(公告)号：JP2001146932A
公开(公告)日：2001-05-29
申请号：JP33125299
申请日：1999-11-22
申请人： NISSIN KOGYO KK
发明人： NAKANO JOICHI , MATSUNO ISAO
IPC分类号： F16D65/18 , F16D55/224
摘要： PROBLEM TO BE SOLVED: To reduce power consumption and the load of an electric motor, in a vehicular disk brake device provided with the electric motor for acting driving force of the axial direction on a push-press piston capable of push- pressing one side of a pair of frictional pad to a disk rotor side. SOLUTION: A spring 11 for energizing the push-press piston 8 to one frictional pad 6A side by spring force for obtaining the maximum brake force which is supposed in a normal traveling condition of the vehicle, is disposed between a caliper body 7 and the push-press piston 8, rotation of a rotary shaft 23 of the electric motor 9 is obstructed in a non-current carrying condition of a solenoid clutch 12, and is also allowed in a current carrying condition of a brake operating member 39, and the electric motor 9 and the solenoid clutch 12 are controlled by a control unit 38 according to a signal detected by operating physical force detector 40 for detecting operating physical force of the brake operating member 39.

6. 发明专利

JP2001146160A HYDRAULIC SERVO UNIT FOR BRAKE 失效
公开(公告)号：JP2001146160A
公开(公告)日：2001-05-29
申请号：JP33048199
申请日：1999-11-19
申请人： NISSIN KOGYO KK
发明人： MATSUNO ISAO
IPC分类号： B60T13/12
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic servo unit for brake allowing disposing of components easily even in a limited narrow space, and exerting ideal servo characteristics. SOLUTION: This hydraulic servo unit for brake is provided with proportional booster valves Vf, Vr consisting of valve means 33, 40 which are activated by the movement of a control piston 18, draw out hydraulic pressure proportional to that of a control hydraulic chamber 20 from a hydraulic source 5, and introduce it into a servo hydraulic chamber 30, and a reaction means 32 for feeding back reaction corresponding to the introduced hydraulic pressure of the servo hydraulic chamber 30 to a control piston 18, wherein the reaction means 32 comprises a reaction piston 31 consisting of a large diameter piston 31a connected to the control piston 18, and a small piston 31b linked to the front end of the piston 31a through an annular stepped part 31c and faces the servo hydraulic chamber 30, and an elastic member 67 fitted onto the outer periphery of the small piston 31b oil-tightly and slidably, with one end surface 67a faced with the servo hydraulic chamber 30, and the other end surface 67b faced with the annular stepped part 31c. When the hydraulic pressure of the servo hydraulic chamber 30 becomes higher than or equal to a prescribed value, the elastic member 67 is deformed to press the other end surface 67b against the annular stepped part 31c.

7. 发明专利

JPH11105770A BRAKE DEVICE FOR BAR HANDLE VEHICLE 失效
公开(公告)号：JPH11105770A
公开(公告)日：1999-04-20
申请号：JP27176597
申请日：1997-10-03
申请人： NISSIN KOGYO KK
发明人： MATSUNO ISAO
IPC分类号： B62L3/00 , B62L3/02 , B62L3/08
摘要： PROBLEM TO BE SOLVED: To provide preferable braking force for the body condition, performance, and intended purpose of a bar handle vehicle in each of both brakes by increasing or decreasing a total of output load much more than the input load of a brake operating element while distributing the input load of the brake operating element as the output load to the respective brakes at the time of interlocking the hydraulic pressure type brake with a mechanical brake. SOLUTION: This device is provided with a master cylinder unit 7 constituted of a hydraulic pressure master cylinder 40, an operating force conversion means 60, and an output distribution means 70. The first rotating lever 62 and a knocker 63 are formed at the operating force conversion means 60. The piston pressing part 63a of the knocker 63 is brought into contact with the outer end of a piston. The second rotating lever 71 and an equalizer lever 72 are formed at the output distribution means 70. The intermediate part of the second rotating lever 71 is pivoted by a fixed support 73, and one end of the equalizer lever 72 is pivoted on its one end with a floating support point 74, and the other end 71b is brought into contact with the piston pressing part 63a.

8. 发明专利

JPH1178844A ANTI LOCK BRAKE CONTROL DEVICE FOR VEHICLE 失效
公开(公告)号：JPH1178844A
公开(公告)日：1999-03-23
申请号：JP25055397
申请日：1997-09-16
申请人： NISSIN KOGYO KK , NIPPON DENKI HOME ELECTRONICS
发明人： MATSUNO ISAO , ISHIKAWA TERUYASU
IPC分类号： B60T8/66 , B60T8/1761
摘要： PROBLEM TO BE SOLVED: To prevent generation of unnecessary decompression control and a control disturbance caused by the vibration of a suspension system, by deciding the vibration of the suspension system without a means directly detecting acceleration/deceleration of the wheels, in an anti lock brake control device of the vehicle which controls the action of a brake fluid pressure regulating means according to the deviation of the slip rate from the target slip rate set based on the estimated vehicle velocity. SOLUTION: In a suspension system vibration decision means 32, a wheel velocity vibration state of high acceleration/deceleration and high-frequency is decided according to the wheel acceleration/deceleration calculated by a wheel acceleration/deceleration calculating means 21F, and the suspension system is decided as vibrating by the fact that the wheel velocity obtained by a wheel velocity detecting means 19F goes beyond the estimated vehicle velocity obtained by a vehicle velocity estimating means 24 is in the wheel velocity vibrating state. In the vibrating state of the suspension system, the wheel velocity used for a slip rate calculation by a slip rate calculating means 28 is corrected in the increasing side by a correcting means 33.

9. 发明专利

JPH1159549A BRAKE DEVICE FOR BAR HANDLE VEHICLE 失效
公开(公告)号：JPH1159549A
公开(公告)日：1999-03-02
申请号：JP23091097
申请日：1997-08-27
申请人： NISSIN KOGYO KK
发明人： MATSUNO ISAO
IPC分类号： B62L3/00 , B62L3/08
摘要： PROBLEM TO BE SOLVED: To dispense with a secondary hydraulic master cylinder and a double- system caliper body, simplify the assembly work, reduce the cost, reduce the weight of the whole vehicle body, and reduce the unsprung weight in a bar handle vehicle provided with a front and rear wheel interlocking brake and a rear wheel single brake. SOLUTION: The second hydraulic piping 31 of an interlocking brake system 6 is connected to a first hydraulic master cylinder 3 and a second hydraulic master cylinder 8. A hydraulic control valve 32 is interposed in the second hydraulic piping 31 to control the hydraulic pressure from a first hydraulic master cylinder 3 to a second hydraulic master cylinder 8. A piston is inserted in a cylinder hole of the second hydraulic master cylinder 8 across a small diameter hole and a large diameter hole, an input hydraulic chamber is demarcated between the piston and a stepped part of the cylinder hole, and an output hydraulic chamber is demarcated between the piston and a bottom wall of the cylinder hole. A hydraulic piping 33 for a rear wheel brake is connected to the output hydraulic chamber, and the second hydraulic piping 31 is connected to the input hydraulic chamber. A piston pusher 13 is arranged between the piston and a second brake operator 7.

10. 发明专利

JPH10329779A BRAKE DEVICE FOR VEHICLE 失效
公开(公告)号：JPH10329779A
公开(公告)日：1998-12-15
申请号：JP13978597
申请日：1997-05-29
申请人： NISSIN KOGYO KK
发明人： MATSUNO ISAO
IPC分类号： B60T11/20 , B62L1/00 , B62L3/00 , B62L3/08
摘要： PROBLEM TO BE SOLVED: To reduce the weight of a spring lower side and prevent the occurrence of cavitation in a second master cylinder to the utmost by absorbing the relative positional change between the spring upper side and spring lower side of a suspension with the deflection of a brake cable, and arranging the second master cylinder on the spring upper side. SOLUTION: The braking torque generated by a first wheel brake 11 is transmitted to the second master cylinder 13 side via a brake cable 31. The relative positional change between the spring upper side and spring lower side in a front suspension 2 is absorbed by the deflection of the brake cable 31. The second master cylinder 13 can be arranged on the spring upper side of the front suspension 2, e.g. on a lower bracket 16, and the weight of the spring lower side can be reduced. The vibration on the spring upper side in the front suspension 2 is smaller than that on the spring lower side, and the occurrence of cavitation in the second master cylinder 13 can be prevented to the utmost.

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