JPH0168971U

JPH0168971U -

Info

Publication number: JPH0168971U
Application number: JP1987162558U
Authority: JP
Priority date: 1987-10-26
Filing date: 1987-10-26
Publication date: 1989-05-08

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す縦断面図、第２
図ａは上記実施例における―矢視断面図、第
２図ｂは上記実施例におけるガイド部材の平面図
である。１…シリンダ本体、２…シリンダ孔、８…従ピ
ストン、１１…主ピストン、１２…頭部、１３…
軸部、１６…ガイド部、２４，３８…弁体、２９
，４４…戻しばね、３０…従圧力室、３３…主圧
力室、３４…孔、３７…弁孔、３８…弁体、３９
…弁軸、４０…開弁部材、４２…ガイド部材、４
２Ａ…長孔、４２Ｂ…突起、３２，３５…液補給
室、４３…ウエーブワツシヤ。 Fig. 1 is a vertical sectional view showing an embodiment of the present invention;
Figure a is a sectional view taken in the direction of the arrow in the above embodiment, and Figure 2b is a plan view of the guide member in the above embodiment. DESCRIPTION OF SYMBOLS 1...Cylinder body, 2...Cylinder hole, 8...Slave piston, 11...Main piston, 12...Head, 13...
Shaft portion, 16... Guide portion, 24, 38... Valve body, 29
, 44... Return spring, 30... Sub pressure chamber, 33... Main pressure chamber, 34... Hole, 37... Valve hole, 38... Valve body, 39
...Valve shaft, 40...Valve opening member, 42...Guide member, 4
2A...Long hole, 42B...Protrusion, 32, 35...Liquid supply chamber, 43...Wave washer.

Claims

[Scope of utility model registration request]

A cylinder main body having a cylinder hole formed therein, a main piston whose head part is slidably fitted into the cylinder hole and whose shaft part projects outside the cylinder through a guide part provided in the cylinder hole opening; A pressure chamber formed in the cylinder hole, a radial hole formed near the head of the shaft, a valve hole formed by connecting the hole to the pressure chamber, and the pressure chamber side of the valve hole closed. a valve body, a valve stem formed on the valve body and extending to the hole, a valve opening member inserted into the hole and capable of engaging with the guide part and the valve stem, and between the head and the guide part. a fluid chamber formed therein and communicating with the hole and a hydraulic fluid reservoir, the valve opening member engaging the guide portion and the valve stem to move the valve body from a position where the valve hole is not closed; The master cylinder is movable within the hole to a position where the valve body is removed and the valve hole is allowed to close, and the master cylinder is provided with a guide member on the shaft portion to guide movement of the valve opening member in the axial direction.