JPH0335864U - - Google Patents
Info
- Publication number
- JPH0335864U JPH0335864U JP9363489U JP9363489U JPH0335864U JP H0335864 U JPH0335864 U JP H0335864U JP 9363489 U JP9363489 U JP 9363489U JP 9363489 U JP9363489 U JP 9363489U JP H0335864 U JPH0335864 U JP H0335864U
- Authority
- JP
- Japan
- Prior art keywords
- input shaft
- movable
- pressure chamber
- movable body
- negative pressure
- 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.)
- Pending
Links
Landscapes
- Braking Systems And Boosters (AREA)
Description
第１図は本考案に係わる負圧式倍力装置の側断
面図、第２図は当該装置に備えられた可動筒部材
の正面図、第３図はその可動筒部材の側断面図、
第４図は当該装置で採用された緩衝材製カバーの
正面図、第５図は第４図のＡ−Ａ線方向の拡大断
面図、第６図は第１図における可撓性弁部材の拡
大断面図、第７図は可撓性弁部材の他の例を示す
断面図、第８図は従来の負圧式倍力装置の側断面
図である。
なお図において、１…負圧式倍力装置、３…前
方シエル、５…後方シエル、８…可動体、１０…
定圧室、１１…変圧室、２７…出力軸、３１…入
力軸、３８…第２の突起、５０…筒部、６５…可
動筒部材、６６ａ，６６ｂ…第１の突起、１２５
…弁装置、１２６…緩衝材製カバー。
Fig. 1 is a side sectional view of a negative pressure booster according to the present invention, Fig. 2 is a front view of a movable cylindrical member provided in the device, and Fig. 3 is a side sectional view of the movable cylindrical member.
Fig. 4 is a front view of the cushioning material cover adopted in the device, Fig. 5 is an enlarged sectional view taken along line A-A in Fig. 4, and Fig. 6 is a view of the flexible valve member in Fig. 1. FIG. 7 is an enlarged sectional view showing another example of a flexible valve member, and FIG. 8 is a side sectional view of a conventional negative pressure booster. In the figure, 1... negative pressure booster, 3... front shell, 5... rear shell, 8... movable body, 10 ...
Constant pressure chamber, 11 ... Variable pressure chamber, 27... Output shaft, 31... Input shaft, 38... Second protrusion, 50... Cylinder part, 65... Movable cylinder member, 66a, 66b... First protrusion, 125
...Valve device, 126...Cover made of cushioning material.
Claims (1)
ばねにより後方に付勢される可動体と、該可動体
の前方側に区画され負圧源に連絡される定圧室と
、前記可動体の後方側に区画される変圧室と、前
記可動体の後方側に延出形成された筒部と、該筒
部に相対移動可能に組付けられ前記シエルを貫通
して外部に突出する可動筒部材と、該可動筒部材
を貫通して前記筒部に嵌合する入力軸と、該入力
軸と連動し前記変圧室の前記定圧室及び大気との
連通、遮断を前記筒部に対する前記入力軸の前後
方向位置に応じて制御する弁装置と、前記可動体
の前方側に配設された出力軸とを備え、前記可動
筒部材に、不作動時に前記シエルに当接する第１
の突起と、前記入力軸に当接する第２の突起とを
形成してある負圧式倍力装置において、前記第１
の突起に緩衝材製カバーを取付けた負圧式倍力装
置。 a movable body that is movably inserted into the internal space of the shell and biased backward by a return spring; a constant pressure chamber that is partitioned on the front side of the movable body and connected to a negative pressure source; and a rear side of the movable body. a variable pressure chamber partitioned into a variable pressure chamber, a cylindrical portion extending to the rear side of the movable body, and a movable cylindrical member that is assembled to the cylindrical portion so as to be relatively movable and protrudes to the outside through the shell; an input shaft that penetrates the movable cylindrical member and fits into the cylindrical portion; and an input shaft that interlocks with the input shaft to connect and disconnect the variable pressure chamber with the constant pressure chamber and the atmosphere in the front-rear direction of the input shaft with respect to the cylindrical portion. A first valve device is provided in the movable cylindrical member, and includes a valve device that is controlled according to the position, and an output shaft disposed on the front side of the movable body.
In the negative pressure booster, the negative pressure booster includes a projection and a second projection that abuts the input shaft.
A negative pressure booster with a cushioning material cover attached to the protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9363489U JPH0335864U (en) | 1989-08-09 | 1989-08-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9363489U JPH0335864U (en) | 1989-08-09 | 1989-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0335864U true JPH0335864U (en) | 1991-04-08 |
Family
ID=31643002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9363489U Pending JPH0335864U (en) | 1989-08-09 | 1989-08-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0335864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013203306A (en) * | 2012-03-29 | 2013-10-07 | Advics Co Ltd | Negative pressure type booster device |
-
1989
- 1989-08-09 JP JP9363489U patent/JPH0335864U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013203306A (en) * | 2012-03-29 | 2013-10-07 | Advics Co Ltd | Negative pressure type booster device |
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