JPS6364566U - - Google Patents
Info
- Publication number
- JPS6364566U JPS6364566U JP16023186U JP16023186U JPS6364566U JP S6364566 U JPS6364566 U JP S6364566U JP 16023186 U JP16023186 U JP 16023186U JP 16023186 U JP16023186 U JP 16023186U JP S6364566 U JPS6364566 U JP S6364566U
- Authority
- JP
- Japan
- Prior art keywords
- power piston
- valve body
- recess
- engaging
- engagement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Braking Systems And Boosters (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図は第１図の―線に沿う断面図、第３図は第
２図の―線に沿う断面図、第４図は本考案の
他の実施例を示す要部の断面図である。
６……バルブボデイ、６ａ……フランジ部、６
ｂ……第１係合凹部、６ｃ……第１係合凸部、６
ｄ……段部端面、９ｂ……環状凹部、９……フロ
ントパワーピストン、９ｃ……後方側壁、９ｄ…
…当接部、９ｅ……前方側壁、９ｆ……第２係合
凸部、９ｇ……第２係合凹部、３７……シール部
材。
Fig. 1 is a sectional view showing one embodiment of the present invention;
1, FIG. 3 is a sectional view taken along the line ``-'' in FIG. 2, and FIG. 4 is a sectional view of main parts showing another embodiment of the present invention. 6...Valve body, 6a...Flange part, 6
b...First engagement recess, 6c...First engagement convexity, 6
d... Step end surface, 9b... Annular recess, 9... Front power piston, 9c... Rear side wall, 9d...
...Abutting portion, 9e...Front side wall, 9f...Second engagement convex portion, 9g...Second engagement recess, 37...Seal member.
Claims (1)
を円周方向に設け、またパワーピストンに第２係
合凸部と第２係合凹部とを円周方向に設け、それ
らバルブボデイとパワーピストンを所要回転角度
に位置させるとともに、両者を軸方向に移動させ
て上記第１係合凸部を第２係合凹部に、第２係合
凸部を第１係合凹部にそれぞれ通過させ、かつ両
者を相対回転させて上記第１係合凸部と第２係合
凸部とを相互に係合させて上記バルブボデイとパ
ワーピストンとを連結したブレーキ倍力装置のパ
ワーピストン組立体において、 上記バルブボデイの外周にフランジ部を形成し
てこのフランジ部に上記第１係合凸部と第１係合
凹部とを形成するとともに、上記パワーピストン
の内周部に上記フランジ部を収容可能な環状凹部
を形成してこの環状凹部を形成する前方側壁に上
記第２係合凸部と第２係合凹部とを形成し、さら
に上記環状凹部の後方側壁と上記フランジ部の後
方端面との間にシール部材を介在させてパワーピ
ストンとバルブボデイとの間の気密を保持すると
ともに、上記シール部材よりも半径方向内側に位
置する後方側壁を上記バルブボデイに形成した段
部端面に当接させ、上記パワーピストンに加わる
推力をその当接部を介してバルブボデイに伝達さ
せることを特徴とするブレーキ倍力装置のパワー
ピストン組立体。[Claims for Utility Model Registration] A first engaging protrusion and a first engaging recess are provided on the valve body in the circumferential direction, and a second engaging protrusion and a second engaging recess are provided on the power piston in the circumferential direction. position the valve body and power piston at a required rotation angle, and move them both in the axial direction so that the first engagement protrusion becomes the second engagement recess and the second engagement protrusion becomes the first engagement protrusion. A brake booster in which the valve body and the power piston are coupled to each other by passing through the engagement recesses and relatively rotating the two so that the first engagement protrusion and the second engagement protrusion are engaged with each other. In the power piston assembly, a flange portion is formed on the outer periphery of the valve body, the first engaging convex portion and the first engaging recess are formed on the flange portion, and the above-mentioned first engaging convex portion and the first engaging recess are formed on the inner periphery of the power piston. An annular recess capable of accommodating the flange portion is formed, the second engagement protrusion and the second engagement recess are formed on the front side wall forming the annular recess, and further the rear side wall of the annular recess and the flange portion are formed. A seal member is interposed between the power piston and the valve body to maintain airtightness between the power piston and the valve body, and a rear side wall located radially inward than the seal member is attached to the stepped end face of the valve body. A power piston assembly for a brake booster, characterized in that the power piston is brought into contact with the power piston and the thrust force applied to the power piston is transmitted to the valve body through the contact portion.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986160231U JPH0411898Y2 (en) | 1986-10-20 | 1986-10-20 | |
| US07/097,803 US4787292A (en) | 1986-09-29 | 1987-09-16 | Brake booster |
| AU78846/87A AU583748B2 (en) | 1986-09-29 | 1987-09-21 | Brake booster |
| KR2019870016306U KR900007162Y1 (en) | 1986-09-29 | 1987-09-25 | Brake booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986160231U JPH0411898Y2 (en) | 1986-10-20 | 1986-10-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6364566U true JPS6364566U (en) | 1988-04-28 |
| JPH0411898Y2 JPH0411898Y2 (en) | 1992-03-24 |
Family
ID=31085416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986160231U Expired JPH0411898Y2 (en) | 1986-09-29 | 1986-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0411898Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57198158A (en) * | 1981-05-28 | 1982-12-04 | Sumitomo Electric Ind Ltd | Booster |
| JPS593006U (en) * | 1982-06-29 | 1984-01-10 | 株式会社本宏製作所 | Telescopic pipe device |
-
1986
- 1986-10-20 JP JP1986160231U patent/JPH0411898Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57198158A (en) * | 1981-05-28 | 1982-12-04 | Sumitomo Electric Ind Ltd | Booster |
| JPS593006U (en) * | 1982-06-29 | 1984-01-10 | 株式会社本宏製作所 | Telescopic pipe device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0411898Y2 (en) | 1992-03-24 |