JPS5935744U

JPS5935744U - Vehicle brake wheel cylinder

Info

Publication number: JPS5935744U
Application number: JP13170082U
Authority: JP
Inventors: 福沢　源一郎
Original assignee: 日信工業株式会社
Priority date: 1982-08-31
Filing date: 1982-08-31
Publication date: 1984-03-06
Also published as: JPS6325388Y2

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 the drawing]

図は本考案の一実施例を示す縦断正面図である。１はシリンダボディ、２はシリンダ孔、３．３′はピス
トン、４．　４’は外部ピストン部材、４１．４１’は
シリンダ孔摺動部、４２．４２′はシーニー当接部、４
３．　４３’はブーツ装着部、４４．４４’は結合孔、
５．５′は内部ピストン部材、５１．５１’はカップ装
着部、５２．５２′は結合突起、５３．　５３’は鍔部
、５４．５４′は液圧室形成用凹部、１０．１０’はカ
ップ室、１４は液圧室、１５．１５’は通路、１６は液
供給孔、１７は排出孔である。The figure is a longitudinal sectional front view showing an embodiment of the present invention. 1 is the cylinder body, 2 is the cylinder hole, 3.3' is the piston, 4. 4' is the external piston member, 41.41' is the cylinder hole sliding part, 42.42' is the seaney contact part, 4
3. 43' is the boot attachment part, 44.44' is the coupling hole,
5.5' is an internal piston member, 51.51' is a cup attachment part, 52.52' is a coupling protrusion, 53. 53' is a flange, 54.54' is a recess for forming a hydraulic chamber, 10.10' is a cup chamber, 14 is a hydraulic chamber, 15.15' is a passage, 16 is a liquid supply hole, and 17 is a discharge hole. be.

Claims

[Scope of utility model registration request]

A cylinder body having a cylinder hole with openings at both ends, two pistons slidably inserted into both sides of the cylinder hole, and a hydraulic chamber defined between the two pistons;
In a wheel cylinder for a vehicle brake, which includes a spring that presses each piston stretched between the two pistons toward the outside of the cylinder hole, the piston has a front external piston member and a rear external piston member. An internal piston member is integrally connected to the cylinder hole, the rear end of the external piston member, a cup mounting portion of the internal piston member, and a flange that extends rearward from the cup mounting portion and slides into contact with the inner wall of the cylinder hole. A cup chamber is defined by the cylinder hole, a flange at the rear end of the internal piston member, and a recess formed in the center of the flange define a hydraulic chamber in which the spring is accommodated. , a passage communicating between the hydraulic pressure chamber and each cup chamber is provided in the internal piston member, and a liquid supply hole communicating between one cup chamber and the mask cylinder and a discharge hole communicating between the other cup chamber and the brüder, respectively. A vehicle brake wheel cylinder characterized by being provided in a cylinder body.