JPS6032163U

JPS6032163U - Control valve for vehicle hydraulic brake system

Info

Publication number: JPS6032163U
Application number: JP12484983U
Authority: JP
Inventors: 中塚　博; 尊冨原
Original assignee: マツダ株式会社; 辰栄工業株式会社
Priority date: 1983-08-11
Filing date: 1983-08-11
Publication date: 1985-03-05
Also published as: JPS639470Y2

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]

第１図は本考案のコントロールバルブが設けられる油圧
ブレーキ装置の制御系統図、第２図は本考案の１実施例
を示す一部破断立面図、第３図は第２図の■−■線断面
図、第４図は本考案の他の実施例の一部を示す断面図で
ある。４・・・・・・マスターシリンダ、６．６’　、８．８
’・・・・・・油圧ｉｆｆ、１０Ｆ、　　１０Ｒ・・・
・・・コントロールバルブ、１２ａ、１２ｂ、１４ａ、
１４ｂ＝ホイールシリンダ、２４・・・・・・連結部材
、２６・・・・・・カム軸、３０・・・・・・シリンダ
ブロック、３２・・・・・・シリンダ部材、３６・・・
・・・第１オイルポート、４２．４２′・・・・・・第
２オイルポート、４４・・・・・・連通孔、４６・・・
・・・バルブシート、４８・・・・・・カップ開口、５
０・・・・・・環状カップ、５０ａ・・・・・・カップ
周壁、５６゜５６′・・・・・・リフトロッド、６０・
・・・・・カム、６２・・・・・・弁座、６４・・・・
・・スプリング、６６．６６’・・・・・・ボール体。Fig. 1 is a control system diagram of a hydraulic brake device equipped with the control valve of the present invention, Fig. 2 is a partially cutaway elevational view showing one embodiment of the present invention, and Fig. 3 is a diagram of ■-■ in Fig. 2. FIG. 4 is a cross-sectional view showing a part of another embodiment of the present invention. 4...Master cylinder, 6.6', 8.8
'...Hydraulic pressure iff, 10F, 10R...
...control valve, 12a, 12b, 14a,
14b=Wheel cylinder, 24...Connecting member, 26...Camshaft, 30...Cylinder block, 32...Cylinder member, 36...
...First oil port, 42.42'...Second oil port, 44...Communication hole, 46...
... Valve seat, 48 ... Cup opening, 5
0...Annular cup, 50a...Cup peripheral wall, 56°56'...Lift rod, 60.
...Cam, 62...Valve seat, 64...
...Spring, 66.66'...Ball body.

Claims

[Scope of utility model registration request]

This control valve is installed in a hydraulic circuit between a master cylinder and a wheel cylinder that receives hydraulic pressure generated by the master cylinder and operates a service brake, and controls the hydraulic pressure, and one end communicates with the master cylinder. A first oil port is provided at the other end with a second oil port that communicates with the wheel cylinder, and the inside of this cylinder is partitioned into two chambers that communicate with the first oil port and the second oil port, respectively. a valve seat that allows pressure oil to flow between the surface and the inner wall of the cylinder, is provided with a communication hole that communicates the two chambers, and further has a valve seat formed around the communication hole on the surface on the first oil port side; The ball body is biased toward the valve seat by a spring compressed in the cylinder chamber on the first oil port side, and the ball body is connected to the service brake operating lever, and when the lever is not operated, the ball body is attached with a spring. a ball operating member that presses the ball body against the force to separate it from the valve seat, and releases the pressure when the lever is operated to seat the ball body against the valve seat; and a second oil port side surface of the valve seat. Above, a control valve for a hydraulic brake system for a vehicle is comprised of an annular cup made of an elastic material and arranged such that the male knob opening faces the second oil port and the peripheral wall contacts the inner wall of the cylinder.