JPS60137666U

JPS60137666U - Tandem booster

Info

Publication number: JPS60137666U
Application number: JP2646784U
Authority: JP
Inventors: 薫坪内; 弓弦杉浦
Original assignee: アイシン精機株式会社
Priority date: 1984-02-24
Filing date: 1984-02-24
Publication date: 1985-09-12

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図は従来のタンデム型倍力装置を示す断面図、第２
図は本考案に係るタンデム型倍力装置の一実施例を示す
断面図、第３図は第２図の■−■線に沿う断面図、第４
図は第２図のＩＶ−ＩＶ線に沿う断面図、第５図はタン
デム型倍力装置の特性線　　図である。符号の説明、２０・・・・・・ハウジング、２３・・・
・・・隔壁、３０・・・・・・前方可動壁、４０・・・
・・・後方可動壁、５０・・・・・・弁手段、５１・・
・・・・バルブプランジャ、６０・・・・・・ブツシュ
ロッド、７０・・・・・・ケース、７０Ａ・・・・・・
第１部材、７０Ｂ・・・・・・第２部材、７１・・・・
・・リアクションゴムディスク、７２・・・・・・オペ
レーションロッド、Ｐｌ・・・・・・第１連通路、Ｐ２
・・・・・・第２連通路、ｒａｉ、ｒｂｌ・・・・・・
変圧室、ｒａ２．ｒｂ２・・・・・・定圧室、Ｓ・・・
・・・間隙。Figure 1 is a sectional view showing a conventional tandem booster, Figure 2
The figure is a sectional view showing an embodiment of the tandem booster according to the present invention, FIG. 3 is a sectional view taken along the line ■-■ in FIG. 2, and FIG.
The figure is a sectional view taken along the line IV--IV in Fig. 2, and Fig. 5 is a characteristic line diagram of the tandem type booster. Explanation of symbols, 20...Housing, 23...
... Bulkhead, 30... Front movable wall, 40...
... Rear movable wall, 50 ... Valve means, 51 ...
... Valve plunger, 60 ... Bush rod, 70 ... Case, 70A ...
First member, 70B... Second member, 71...
...Reaction rubber disc, 72...Operation rod, Pl...1st communication path, P2
...Second communication path, rai, rbl...
Transformer room, ra2. rb2... Constant pressure chamber, S...
···gap.

Claims

[Scope of utility model registration request]

The inside of the housing is divided into four chambers by one partition wall and a pair of front and rear movable walls that pass through the approximate center of the partition wall and are connected to each other, and the front and rear variable pressure chambers formed behind each of the movable walls are divided into four chambers. The front and rear constant pressure chambers formed in front of each movable wall are communicated with each other through a communication passage, and the front and rear constant pressure chambers formed in front of each of the movable walls are communicated with each other through a second communication passage. A pressure difference is created between the two pressure chambers to move the two movable walls forward, and this forward pushing force causes the two movable walls to be assembled with their large diameter portions forward. The operation rod is acted on through a stepped cylindrical case and a reaction rubber disk assembled into the stepped portion of the case, and the reaction force is slidable into the small diameter portion of the case via the reaction rubber disk. In the tandem type booster, the case is fitted into the rear movable wall to restrict forward movement of the case, in which the case is fitted into the rear movable wall and acts on a valve plunger that constitutes the valve means and is connected to a brake pedal. a first member having a small diameter cylindrical shape and whose rotation is restricted while being rotated; and a second member having a stepped cylindrical shape which is screwed onto the first member and can move forward and backward with respect to the first member in the direction of movement of the two movable walls. A tandem type booster characterized by comprising: