JPS62202469U

JPS62202469U -

Info

Publication number: JPS62202469U
Application number: JP9167486U
Authority: JP
Priority date: 1986-06-16
Filing date: 1986-06-16
Publication date: 1987-12-24

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す液圧マスタシ
リンダの要部の断面図、第２図は同じく従来例の
要部断面図である。１……シリンダボデイ、２……シリンダ、２ａ
……開口部、３……ピストン、３ａ……凹部、５
……プツシユロツド、５ａ……頭部、５ｂ……突
条、５ｃ……軸部、５ｄ……後端、６……液圧室
、８，９……ストツパプレート、９ｂ……覆い部
、９ｃ……大径孔、９ｄ……内側縁、１０……弾
性材、１０ａ……ダンパ部、１０ｂ……挿通孔、
１０ｃ……スライドシール部、１２……ブレーキ
ペダル、１３……ペダルリターンスプリング。 FIG. 1 is a sectional view of a main part of a hydraulic master cylinder showing an embodiment of the present invention, and FIG. 2 is a sectional view of a main part of a conventional example. 1... Cylinder body, 2... Cylinder, 2a
...opening, 3...piston, 3a...recess, 5
... Push rod, 5a ... Head, 5b ... Projection, 5c ... Shaft, 5d ... Rear end, 6 ... Hydraulic pressure chamber, 8, 9 ... Stopper plate, 9b ... Cover part, 9c...large diameter hole, 9d...inner edge, 10...elastic material, 10a...damper part, 10b...insertion hole,
10c...Slide seal portion, 12...Brake pedal, 13...Pedal return spring.

Claims

[Scope of utility model registration request]

A stopper plate with an insertion hole through which the push rod is inserted is provided in the opening of the cylinder into which the piston is inserted, and the tip of the push rod protrudes into the cylinder from the insertion hole, so that the push rod touches the insertion hole when not in operation. A hydraulic master cylinder that contacts the push rod to limit the retraction limit of the push rod, wherein the insertion hole of the stopper plate is equipped with an elastic material that covers the gap with the push rod and buffers the push rod during retraction. Pressure master cylinder.