JPS5741247A - Master cylinder of brake apparatus for vehicle - Google Patents

Master cylinder of brake apparatus for vehicle

Info

Publication number
JPS5741247A
JPS5741247A JP11501180A JP11501180A JPS5741247A JP S5741247 A JPS5741247 A JP S5741247A JP 11501180 A JP11501180 A JP 11501180A JP 11501180 A JP11501180 A JP 11501180A JP S5741247 A JPS5741247 A JP S5741247A
Authority
JP
Japan
Prior art keywords
spring
liquid
piston
chamber
shoe clearance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11501180A
Other languages
Japanese (ja)
Other versions
JPS632824B2 (en
Inventor
Kensuke Ioku
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nabco Ltd
Original Assignee
Nabco Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nabco Ltd filed Critical Nabco Ltd
Priority to JP11501180A priority Critical patent/JPS5741247A/en
Publication of JPS5741247A publication Critical patent/JPS5741247A/en
Publication of JPS632824B2 publication Critical patent/JPS632824B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/228—Pressure-maintaining arrangements, e.g. for replenishing the master cylinder chamber with fluid from a reservoir

Abstract

PURPOSE:To maintain the shoe clearance at a constant value and the stroke constant, by supplying a hydraulic liquid to a wheel cylinder when the shoe clearance has become above a preset value. CONSTITUTION:Springs 7, 8 push respective pistons 3, 4 rearward. The spring 7 is greater than the spring 8 when the shoe clearance is adjusted in a prescribed range, and on the other hand when the shoe clearance exceeds the prescribed value, the spring 8 is made greater than the spring 7 by that increment. In a bore 16 of the piston 3, a check valve 12 is slidably fitted. The valve 12 is pushed rearward by a spring 14, but when the piston is restored, the valve 12 abuts on a stopper 17 and is opened. In a passage 25 connecting a liquid tank 21 and an auxiliry chamber 6 is provided a check valve 23 so that a liquid can flow only from the liquid tank 21 to the chamber 6. When the brake is applied in the state where the clearance has exceeded the prescribed value, the tension of the spring 8 becomes greater than that of the spring 7, and therefore when the brake is released, the piston 4 is quickly restored, a negative pressure is produced in the chamber 6, and the liquid is supplied from the tank 21.
JP11501180A 1980-08-20 1980-08-20 Master cylinder of brake apparatus for vehicle Granted JPS5741247A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11501180A JPS5741247A (en) 1980-08-20 1980-08-20 Master cylinder of brake apparatus for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11501180A JPS5741247A (en) 1980-08-20 1980-08-20 Master cylinder of brake apparatus for vehicle

Publications (2)

Publication Number Publication Date
JPS5741247A true JPS5741247A (en) 1982-03-08
JPS632824B2 JPS632824B2 (en) 1988-01-20

Family

ID=14652056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11501180A Granted JPS5741247A (en) 1980-08-20 1980-08-20 Master cylinder of brake apparatus for vehicle

Country Status (1)

Country Link
JP (1) JPS5741247A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0219834A2 (en) * 1985-10-18 1987-04-29 Toyota Jidosha Kabushiki Kaisha Portless type master cylinder device with non return valve and restricted passage in parallel between pressure chamber and fluid reservoir
US8101922B2 (en) 2007-07-06 2012-01-24 ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH Modular gas ion source

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0219834A2 (en) * 1985-10-18 1987-04-29 Toyota Jidosha Kabushiki Kaisha Portless type master cylinder device with non return valve and restricted passage in parallel between pressure chamber and fluid reservoir
EP0219834A3 (en) * 1985-10-18 1988-07-20 Toyota Jidosha Kabushiki Kaisha Portless type master cylinder device with non return valve and restricted passage in parallel between pressure chamber and fluid reservoir
US4773224A (en) * 1985-10-18 1988-09-27 Toyota Jidosha Kabushiki Kaisha Portless type master cylinder device with non return valve and restricted passage in parallel between pressure chamber and fluid reservoir
US8101922B2 (en) 2007-07-06 2012-01-24 ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH Modular gas ion source

Also Published As

Publication number Publication date
JPS632824B2 (en) 1988-01-20

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