JPS58149252U

JPS58149252U - master cylinder

Info

Publication number: JPS58149252U
Application number: JP4585682U
Authority: JP
Inventors: 竹内　博生; 荒川　清
Original assignee: 日信工業株式会社
Priority date: 1982-03-31
Filing date: 1982-03-31
Publication date: 1983-10-06

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案の実施例を示すもので、第１図はタンデム
型マスクシリンダの一部断面正面図、第２図はシングル
型マスクシリンダの一部断面正面図である。１はシリンダ本体、２はシリンダ孔、３はプライマリピ
ストン、４はセコンダリピストン、９゜１０は無圧力液
室、１１．１２は圧力液室、ｌａ。ＩＣは無圧力液室を画成するシリシダ部、１ｂ。１ｄは圧力液室を画成するシリンダ部、３１はシリンダ
本体、３３はシリンダ孔、３４はピストン、３５は無圧
力液室、３６は圧力液室、３１ａは無圧力液室を画成す
るシリンダ部、３１ｂは圧力液室を画成するシリンダ部
である。The drawings show an embodiment of the present invention; FIG. 1 is a partially sectional front view of a tandem type mask cylinder, and FIG. 2 is a partially sectional front view of a single type mask cylinder. 1 is the cylinder body, 2 is the cylinder hole, 3 is the primary piston, 4 is the secondary piston, 9°10 is the non-pressure liquid chamber, 11.12 is the pressure liquid chamber, la. IC is a cylindrical part 1b that defines a pressureless liquid chamber. 1d is a cylinder portion that defines a pressure liquid chamber, 31 is a cylinder body, 33 is a cylinder hole, 34 is a piston, 35 is a non-pressure liquid chamber, 36 is a pressure liquid chamber, and 31a is a cylinder that defines a non-pressure liquid chamber. The part 31b is a cylinder part defining a pressure liquid chamber.

Claims

[Scope of utility model registration request]

A pressure liquid chamber and a non-pressure liquid chamber are defined by a piston that slides into a cylinder hole of a cylinder body provided with a reservoir, and when the piston moves forward, communication between the pressure liquid chamber and the reservoir is cut off, and liquid pressure is generated. 1. A mask cylinder, wherein the thickness of the outer periphery of the cylinder portion defining the pressureless liquid chamber of the cylinder body is made thinner than the thickness of the outer periphery of the cylinder portion defining the pressure liquid chamber.