JPH0345362U

JPH0345362U -

Info

Publication number: JPH0345362U
Application number: JP10658889U
Authority: JP
Priority date: 1989-09-11
Filing date: 1989-09-11
Publication date: 1991-04-26

Description

[Brief explanation of drawings]

第１図は本考案の一実施例によるマスタシリン
ダの側断面図、第２図は第１図の要部を拡大して
示す断面図、第３図は第１図で示した環状部材の
拡大断面図、第４図ａ，ｂは第１図に示したばね
受けの拡大断面図およびその側面図、第５図は第
１図のシリンダ孔本体の底壁部近傍の拡大断面図
、第６図は本考案の他の実施例を示す要部断面図
、第７図はさらに他の実施例を示す要部拡大断面
図である。なお、図において、２１……マスタシリンダ、
２２……シリンダ本体、２３……シリンダ孔、２
９……従ピストン、６８……弁棒、６９……従圧
力室、７０……軸部、７１……弁体、８０，９８
，１００……リテーナ、Ｅ，Ｈ，Ｊ……保持機構
、Ｆ，Ｇ……通路。 Fig. 1 is a side sectional view of a master cylinder according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part of Fig. 1, and Fig. 3 is an enlarged view of the annular member shown in Fig. 1. 4a and 4b are enlarged sectional views and side views of the spring receiver shown in FIG. 1, FIG. 5 is an enlarged sectional view of the vicinity of the bottom wall of the cylinder hole body shown in FIG. 1, and FIG. 7 is a sectional view of a main part showing another embodiment of the present invention, and FIG. 7 is an enlarged sectional view of a main part showing still another embodiment. In addition, in the figure, 21...master cylinder,
22... Cylinder body, 23... Cylinder hole, 2
9... Slave piston, 68... Valve stem, 69 ... Slave pressure chamber, 70... Shaft, 71... Valve body, 80, 98
, 100... retainer, E, H, J... holding mechanism, F, G... passage.

Claims

[Scope of utility model registration request]

a cylinder body having a cylinder hole formed therein; a piston that is slidably inserted into the cylinder hole and partitions a pressure chamber; a valve body disposed opposite to the opening of the passageway on the pressure chamber side and biased by a valve spring so as to close the opening; and a valve body extending from the valve body toward the pressure chamber side. a valve stem having a shaft portion whose body side end portion is engageable with the piston; a retainer through which the shaft portion movably passes and which is engageable with the other end portion of the shaft portion; What is claimed is: 1. A master cylinder having a spring disposed between the piston and the retainer, the master cylinder having a retaining mechanism for retaining the retainer at a fixed position.