JPH049361U

JPH049361U -

Info

Publication number: JPH049361U
Application number: JP5068090U
Authority: JP
Priority date: 1990-05-15
Filing date: 1990-05-15
Publication date: 1992-01-28
Anticipated expiration: 2005-05-15
Also published as: JPH086662Y2

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例であるマスタシリ
ンダを真空倍力装置に取り付けた状態を示す側断
面図である。また、第２図、第３図は、それぞれ
本考案の変形実施例であるマスタシリンダの側断
面図である。そして、第４図は、従来のマスタシ
リンダの側断面図である。４……プライマリピストン（ピストン）、４ａ
……軸部、２１……出力ロツド、３０，４５，５
０……マスタシリンダ、３１……軸受部材、３２
……シリンダ、３２ｂ……開口部、３３……軸受
保持部材、３４……段部、４０……真空倍力装置
、４１……リターンスプリング。 FIG. 1 is a side sectional view showing a state in which a master cylinder according to an embodiment of the present invention is attached to a vacuum booster. 2 and 3 are side sectional views of master cylinders that are modified embodiments of the present invention, respectively. FIG. 4 is a side sectional view of a conventional master cylinder. 4...Primary piston (piston), 4a
...shaft part, 21 ... output rod, 30, 45, 5
0... Master cylinder, 31... Bearing member, 32
... cylinder, 32b ... opening, 33 ... bearing holding member, 34 ... step, 40 ... vacuum booster, 41 ... return spring.

Claims

[Claims for Utility Model Registration] A cylindrical cylinder with a bottom, a bearing member provided at an opening of the cylinder and slidably supporting a shaft of a piston protruding from the opening, a bearing holding member that is attached to cover a peripheral edge and prevents the bearing member from coming off by coming into contact with the bearing member; the opening side is inserted and attached to the output side of the vacuum booster; A master cylinder whose shaft portion is operated by being pushed by an output rod of a vacuum booster, and one end of a return spring provided on the output side of the vacuum booster by the bearing member or the bearing holding member. A master cylinder characterized in that a stepped portion into which the cylinder is fitted is formed inside an outer diameter of an opening side end of the cylinder.