JPS58130860U

JPS58130860U - Deceleration-sensitive brake fluid pressure control device for vehicles

Info

Publication number: JPS58130860U
Application number: JP2865782U
Authority: JP
Inventors: 安藤　昌基; 永島　卓; 柴谷　寿一; 中洲　啓
Original assignee: アイシン精機株式会社; トヨタ自動車株式会社
Priority date: 1982-03-01
Filing date: 1982-03-01
Publication date: 1983-09-03

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]

第１図は従来装置を示す図、第２図は第１図の装置の性
能を示す図、第３図は本考案の一実施例を示す図、第４
図は第３図のＩＶ−ＩＶ線に沿う断面図、第５図は第３
図及び第４図に示した装置の性能を示す図である。符号の説明、４０・・・・・・ハウジング、４２・・・
・・・段付内孔、４８・・・・・−流人ポート、５２・
・・・・・ブレーキマスクシリンダ、５４・・・・・・
流出ポート、５８・・・・・・後輪ホイールシリンダ、
６４・・・・・・Ｐバルブ（液圧制御バルブ）、６６・
・・・・・差動ピストン、７０・・・・・・コイルスプ
リング、７４・・・・・・減速度感応バルブ、８２・・
・・・・制御ビス１−ン、８４・・・・・・内孔、８５
・・・・・・スプリング、９６・・・・・・液室（内孔
の一部）、１００・・・・・・連通孔、１０２・・・・
・・環状通路、１０６・・・・・・アキュムレータ。FIG. 1 is a diagram showing a conventional device, FIG. 2 is a diagram showing the performance of the device in FIG. 1, FIG. 3 is a diagram showing an embodiment of the present invention, and FIG.
The figure is a sectional view taken along the IV-IV line in Figure 3, and Figure 5 is a cross-sectional view along the line IV-IV in Figure 3.
FIG. 5 is a diagram showing the performance of the apparatus shown in FIGS. Explanation of symbols, 40...Housing, 42...
...Stepped inner hole, 48...-Drifter port, 52.
...Brake mask cylinder, 54...
Outflow port, 58... Rear wheel cylinder,
64...P valve (hydraulic pressure control valve), 66.
... Differential piston, 70 ... Coil spring, 74 ... Deceleration sensitive valve, 82 ...
... Control screw 1-pin, 84 ... Inner hole, 85
... Spring, 96 ... Liquid chamber (part of inner hole), 100 ... Communication hole, 102 ...
...Annular passage, 106...Accumulator.

Claims

[Scope of utility model registration request]

A housing having an inflow port connected to a brake mask cylinder and an outflow port connected to a rear wheel cylinder, and provided therein with a stepped inner hole that communicates with both ports, and the stepped inner hole of the housing. a hydraulic pressure control valve that controls hydraulic pressure applied to the rear wheel cylinder through the outflow port in cooperation with a spring-biased differential piston provided in the inner bore; and a hydraulic pressure control valve that is coaxial with the stepped inner bore. a spring-biased control piston that is slidably disposed within a bore provided in the differential piston and abuts the differential piston at the other end when hydraulic pressure acting on one end thereof reaches a predetermined value; A deceleration that is interposed in a communication path provided between a portion of the inner hole where one end of the control piston is exposed and the inflow port, and interrupts hydraulic pressure applied to the inner hole when a predetermined deceleration is detected. In the deceleration-sensitive braking hydraulic pressure control device for a vehicle, the deceleration-sensitive valve has an inertia ball and a valve seat made of a rubber material. A deceleration sensitive type for a vehicle, comprising a communication hole that communicates with a part of the inner hole whose one end is exposed, and an accumulator that stores therein hydraulic pressure applied through the communication hole and is attached to the outer wall of the housing. Braking fluid pressure control device.