JPH01161167U

JPH01161167U -

Info

Publication number: JPH01161167U
Application number: JP5890888U
Authority: JP
Priority date: 1988-04-30
Filing date: 1988-04-30
Publication date: 1989-11-09

Description

[Brief explanation of the drawing]

図は本考案の要部を示す断面図である。１０…マスタシリンダ、１１…シリンダボデイ
、１１ａ…内孔、１２…ピストン、１３…リター
ンスプリング、１４ａ，１４ｂ…ピストンカツプ
、１５…サークリツプ、１６…シリンダカラー、
１７…ストツパピン、１９…スナツプリング、２
０…弁体、２１…バルブロツド、２２…スプリン
グ、Ｖ…バルブ機構、Ｒ１…補給室、Ｒ２…圧力
室。 The figure is a sectional view showing the main parts of the present invention. 10... Master cylinder, 11... Cylinder body, 11a... Inner hole, 12... Piston, 13... Return spring, 14a, 14b... Piston cup, 15... Circlip, 16... Cylinder collar,
17...stopper pin, 19...snattu spring, 2
0...Valve body, 21...Valve rod, 22...Spring, V...Valve mechanism, R1...Replenishment chamber, R2...Pressure chamber.

Claims

[Scope of utility model registration request]

A pressure chamber and a reservoir that are fluid-tightly and slidably inserted in the axial direction via a piston cup into the inner hole of the cylinder body that accommodates the hydraulic fluid are constantly connected to the hydraulic pressure pipe in the same inner hole. a piston that forms a communicating replenishment chamber and has a communication hole that communicates the pressure chamber and the replenishment chamber; a return spring that is housed in the pressure chamber and biases the piston toward a non-operating position; A valve rod that can be seated on the bottom surface of a recess of the piston in which one end of the communication hole is open is fitted at one end, and the other end is loosely fitted into the communication hole and urges the valve rod and the valve disk in the seating direction. When the piston is in a non-operating position, the other end of the valve rod comes into contact with a stopper attached to the piston so as to be relatively movable by a predetermined amount in the axial direction, thereby opening the communication hole; A master cylinder is provided with a valve mechanism that causes the other end of the valve rod to move away from the stopper when the piston is in the operating position to close the communication hole and generate hydraulic pressure in the pressure chamber. A cylinder collar is fixed to the cylinder body, the cylinder collar being formed with a step having a small diameter on the chamber side and fluid-tightly fitted between the small diameter portion and the inner hole, and when the piston is in a non-operating position, the stopper is fixed to the cylinder body. A master cylinder, wherein the cylinder collar is in contact with the cylinder collar.