JPS6213757U

JPS6213757U -

Info

Publication number: JPS6213757U
Application number: JP10524085U
Authority: JP
Priority date: 1985-07-10
Filing date: 1985-07-10
Publication date: 1987-01-27

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例に係るマスタシリ
ンダの縦断面図、第２図は同マスタシリンダの要
部拡大断面図、第３図は本考案の第２実施例に係
るマスタシリンダの縦断面図である。符号の説明、１１……シリンダボデー、１２…
…ストツパケース、１３ａ，１３ｂ……リターン
スプリング、１４，１５，１４Ａ，１５Ａ……ピ
ストン、２０，３０……バルブ機構、２２，３２
，２２Ａ，３２Ａ……弁体、２３，３３……圧縮
スプリング、２４，３４，２４Ａ，３４Ａ……バ
ルブリテーナ、４１，４３，４４……リテーナ、
４２，４５……コネクテイングロツド、４８，４
９……ストツパピン。 FIG. 1 is a vertical cross-sectional view of a master cylinder according to a first embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of essential parts of the same master cylinder, and FIG. 3 is a longitudinal cross-sectional view of a master cylinder according to a second embodiment of the present invention. FIG. Explanation of symbols, 11... Cylinder body, 12...
... Stopper case, 13a, 13b ... Return spring, 14, 15, 14A, 15A ... Piston, 20, 30 ... Valve mechanism, 22, 32
, 22A, 32A... valve body, 23, 33... compression spring, 24, 34, 24A, 34A... valve retainer, 41, 43, 44... retainer,
42, 45... Connecting rod, 48, 4
9...Stotsupapin.

Claims

[Scope of utility model registration request]

A piston that is fluid-tightly and slidably fitted into an inner hole of a cylinder body and forms a pressure chamber that is in constant communication with a hydraulic pressure line and a supply chamber that is always in communication with a reservoir tank. A valve support is assembled to be movable in the sliding direction of the piston in a recess provided at the tip and opens toward the pressure chamber, and the valve support is fitted and fixed to the outer periphery of a locking portion provided on the valve support. an elastic cylindrical valve body that is attached to and detached from a valve seat provided at the bottom of the recess to connect and disconnect communication between the pressure chamber and the reservoir tank, and the valve support that is interposed in the recess of the piston. a first compression spring that biases the valve body toward the valve seat via the valve body, and a valve body regulating means that separates the valve body from the valve seat for a predetermined period when the piston is in an inoperative position. What is claimed is: 1. A master cylinder comprising: a cylindrical valve retainer that surrounds the outer periphery of a fitting and fixing portion of the valve body;