JPH035556U - - Google Patents
Info
- Publication number
- JPH035556U JPH035556U JP6522989U JP6522989U JPH035556U JP H035556 U JPH035556 U JP H035556U JP 6522989 U JP6522989 U JP 6522989U JP 6522989 U JP6522989 U JP 6522989U JP H035556 U JPH035556 U JP H035556U
- Authority
- JP
- Japan
- Prior art keywords
- output shaft
- valve body
- protrusion
- large diameter
- diameter portion
- 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図は本考案によるタンデム型負圧倍力装置
をブレーキ倍力装置に適用した一実施例を示す縦
断面図、第２図はその実施例に用いられるリテー
ナの斜視図である。
１……ブレーキ倍力装置（負圧倍力装置）、２
……フロントシエル、３……リヤシエル、４……
バルブボデイ、５……定圧室、６……定圧室、１
８……弁プランジヤ、１９……入力軸、２２……
制御弁、２７……出力軸、２７ａ……後端大径部
、２８……リアクシヨンデイスク、３０……リテ
ーナ、３０ｃ……膨出部（押圧部）。
FIG. 1 is a longitudinal sectional view showing an embodiment in which a tandem-type negative pressure booster according to the present invention is applied to a brake booster, and FIG. 2 is a perspective view of a retainer used in the embodiment. 1... Brake booster (negative pressure booster), 2
...Front shell, 3...Rear shell, 4...
Valve body, 5... Constant pressure chamber, 6... Constant pressure chamber, 1
8... Valve plunger, 19... Input shaft, 22...
Control valve, 27...Output shaft, 27a...Rear end large diameter portion, 28...Reaction disk, 30...Retainer, 30c...Bulging portion (pressing portion).
Claims (1)
れた空間内に対して進退自在に配設され、前記リ
ヤシエルを気密にかつ摺動自在に貫通するバルブ
ボデイと、このバルブボデイに連結されるととも
に、前記空間内を負圧が導入される定圧室と作動
時大気圧の空気が導入される変圧室とに区画する
パワーピストンと、前記バルブボデイに摺動自在
に配設された弁プランジヤと、この弁プランジヤ
に連結され、前記バルブボデイ内に進退自在に配
設された入力軸と、前記バルブボデイ内に設けら
れ、前記弁プランジヤによつて作動されて前記変
圧室を大気または前記定圧室に選択的に連通させ
るべく切り換え制御する制御弁と、前記バルブボ
デイの前記定圧室に面する前端部に形成された軸
方向前方に突出する突出部と、後端大径部がこの
突出部に摺動可能に嵌合される出力軸と、この出
力軸と前記突出部との間に配設されたリアクシヨ
ンデイスクと、前記出力軸の後端大径部が前記突
出部から抜け出ることを阻止するリテーナとを備
えた負圧倍力装置において、 更に、前記リテーナには、前記出力軸の後端大
径部外周面に係合してその出力軸を前記突出部に
向けて押圧する押圧部が形成されていることを特
徴とする負圧倍力装置。[Claims for Utility Model Registration] A valve body that is arranged to be movable forward and backward in a space formed by a front shell and a rear shell, and that penetrates the rear shell in an airtight and slidable manner, and is connected to this valve body. and a power piston that divides the space into a constant pressure chamber into which negative pressure is introduced and a variable pressure chamber into which air at atmospheric pressure is introduced during operation, and a valve plunger slidably disposed on the valve body. an input shaft connected to the valve plunger and disposed in the valve body so as to be able to move forward and backward; a control valve that performs switching control to selectively communicate; a protrusion that protrudes forward in the axial direction formed at the front end of the valve body facing the constant pressure chamber; and a large diameter portion of the rear end that slides into the protrusion. an output shaft that can be fitted into the output shaft, a reaction disk disposed between the output shaft and the protrusion, and a retainer that prevents the large diameter portion of the rear end of the output shaft from coming out of the protrusion. In the negative pressure booster, the retainer further includes a pressing portion that engages with the outer circumferential surface of the rear end large diameter portion of the output shaft and presses the output shaft toward the protruding portion. A negative pressure booster characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989065229U JPH0611843Y2 (en) | 1989-06-03 | 1989-06-03 | Negative pressure booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989065229U JPH0611843Y2 (en) | 1989-06-03 | 1989-06-03 | Negative pressure booster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH035556U true JPH035556U (en) | 1991-01-21 |
| JPH0611843Y2 JPH0611843Y2 (en) | 1994-03-30 |
Family
ID=31596871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989065229U Expired - Lifetime JPH0611843Y2 (en) | 1989-06-03 | 1989-06-03 | Negative pressure booster |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0611843Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6337468U (en) * | 1986-08-29 | 1988-03-10 | ||
| JPS6370465U (en) * | 1986-10-29 | 1988-05-11 |
-
1989
- 1989-06-03 JP JP1989065229U patent/JPH0611843Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6337468U (en) * | 1986-08-29 | 1988-03-10 | ||
| JPS6370465U (en) * | 1986-10-29 | 1988-05-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0611843Y2 (en) | 1994-03-30 |
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