JPS61171663U

JPS61171663U -

Info

Publication number: JPS61171663U
Application number: JP5493285U
Authority: JP
Priority date: 1985-04-13
Filing date: 1985-04-13
Publication date: 1986-10-24

Description

[Brief explanation of the drawing]

第１図は、この考案の一実施例である液圧制御
弁付きタンデムマスタシリンダの側断面図である
。１……液圧制御弁付きタンデムマスタシリンダ
、４……従ピストン、５……主ピストン、６……
従圧力室、７……主圧力室、１１……ボルト、１
４……制限部材、３３……第１の液圧制御弁、３
４……プランジヤ、５０……第２の液圧制御弁、
５１……ピストン。 FIG. 1 is a side sectional view of a tandem master cylinder with a hydraulic pressure control valve, which is an embodiment of this invention. 1...Tandem master cylinder with hydraulic pressure control valve, 4...Slave piston, 5...Main piston, 6...
Sub-pressure chamber, 7...Main pressure chamber, 11...Bolt, 1
4... Limiting member, 33... First hydraulic control valve, 3
4...Plunger, 50...Second hydraulic pressure control valve,
51... Piston.

Claims

[Scope of utility model registration request]

A cylinder body having a cylinder hole, a slave piston and a main piston slidably inserted into the cylinder hole, a main pressure chamber formed between these two pistons, and a bottom of the slave piston and the cylinder hole. a first hydraulic pressure control valve that is provided on the slave piston and controls the hydraulic pressure from the slave pressure chamber to be reduced within a range exceeding a predetermined pressure; A first piping connection section that connects the main pressure chamber to the other of the left and right front wheel brakes; a second piping connection section that connects the main pressure chamber to the other of the left and right front wheel brakes; a third piping connection part that communicates with either one of the left and right rear wheel brakes via a control valve; a fourth piping connection part that connects the main pressure chamber with the other of the left and right rear wheel brakes; a second hydraulic pressure control valve that is provided at the piping connection part of the main pressure chamber and controls the hydraulic pressure from the main pressure chamber to be reduced within a range exceeding a predetermined pressure; In the tandem master cylinder with a hydraulic pressure control valve, the tandem master cylinder has a plunger that is movable against an elastic body and a valve device that is opened and closed according to the movement of the plunger. The plunger of the valve can come into contact with the main piston or a member that moves integrally with the main piston when the main piston and the slave piston approach each other by a predetermined value or more, and the plunger of the second hydraulic pressure control valve The plunger is a tandem master cylinder with a hydraulic pressure control valve that can come into contact with the slave piston or a member that moves integrally with the slave piston in response to movement of the slave piston beyond a predetermined amount.