JPS60151767U

JPS60151767U - Vehicle brake device

Info

Publication number: JPS60151767U
Application number: JP3988584U
Authority: JP
Inventors: 利男高山
Original assignee: トキコ株式会社
Priority date: 1984-03-19
Filing date: 1984-03-19
Publication date: 1985-10-08
Also published as: JPH0340683Y2

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図は本考案の一実施例を示すタンデムブースタの側
断面図に配管図及び電気回路図を付加した図、第２図は
そのコントロールバルブとコント　　　′ローラとの関
係を示す空圧回路図に電気回路図を付加した図、第３図
はそのブースタの室Ｃと室りとの差圧に対する室Ａと室
Ｂとの差圧の関係を示す圧力差特性図、第４図はそのブ
ースタの入出力特性図、第５図乃至第７図は本考案の他
の実施例を示すもので、第５図は第２図同様の図、第６
図は第３図同様の図、第７図は第４図同様の図である。２……フロントシエル、３・・…・リアシェル、４・・
・・・・フロントパワーピストン、６・・・・・・リア
パワーピストン、７．１８・・・・・・ダイアフラム、
１３・・・・・・出力軸、２２・・・・・・プランジャ
、２４・・・・・・ブツシュロッド、２７・・・−・・
ポペットバルブ、４９．６６・・・・・・コントロール
バルブ（制御弁機構）、５０．６７・・・・・・コント
ローラ、Ａ・・・・・・室（フロント室）、Ｂ・・・・
・・室（リア室）、Ｃ・・・・・・室（フロント室）、
Ｄ・・・・・・室（リア室）。Figure 1 is a side cross-sectional view of a tandem booster showing an embodiment of the present invention, with piping diagrams and electric circuit diagrams added, and Figure 2 is a pneumatic circuit diagram showing the relationship between its control valve and controller. Figure 3 is a pressure difference characteristic diagram showing the relationship between the differential pressure between chambers A and B with respect to the differential pressure between chamber C and chamber B of the booster, and Figure 4 is a diagram of the booster. The input/output characteristic diagrams of FIGS. 5 to 7 show other embodiments of the present invention, and FIG. 5 is similar to FIG. 2, and FIG.
The figures are similar to FIG. 3, and FIG. 7 is similar to FIG. 4. 2...Front shell, 3...Rear shell, 4...
...Front power piston, 6...Rear power piston, 7.18...Diaphragm,
13... Output shaft, 22... Plunger, 24... Bush rod, 27...-...
Poppet valve, 49.66... Control valve (control valve mechanism), 50.67... Controller, A... Chamber (front chamber), B...
... room (rear room), C... room (front room),
D... Room (rear room).

Claims

[Scope of utility model registration request]

A front power piston, which has a diaphragm and is provided in the shell body via the diaphragm, moves the inside of the shell body into four chambers, a front chamber and a rear chamber, of the front power piston and rear power piston, respectively. Definition 1-1 A valve mechanism is provided in the rear power piston to control pressure between a front chamber and a rear chamber of the rear power piston in conjunction with an input member, and when the input member is actuated, the rear power piston is operated. A pneumatic type that transmits the thrust that acts on the power piston to the output shaft when a pressure difference is created between the front chamber and the rear chamber of the piston, and transmits the reaction force that acts on the output shaft to the input member. In a vehicle brake system using a booster, a control valve mechanism for controlling a differential pressure between a front chamber and a rear chamber of the rear power piston is connected to a rear chamber of the rear power piston, and the control valve mechanism controls the rear power A vehicle brake device characterized in that fluid introduced into a rear chamber of the front power piston is controlled based on a pressure difference between a front chamber and a rear chamber of the piston.