JPH0173458U - - Google Patents
Info
- Publication number
- JPH0173458U JPH0173458U JP1987169865U JP16986587U JPH0173458U JP H0173458 U JPH0173458 U JP H0173458U JP 1987169865 U JP1987169865 U JP 1987169865U JP 16986587 U JP16986587 U JP 16986587U JP H0173458 U JPH0173458 U JP H0173458U
- Authority
- JP
- Japan
- Prior art keywords
- booster
- piston
- negative pressure
- clamped
- shell
- 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
- 239000002184 metal Substances 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 description 1
Landscapes
- Braking Systems And Boosters (AREA)
Description
図面は本考案の一実施例を示すもので、第1図
はタンデム型負圧ブースタの休止状態での縦断側
面図、第2図及び第3図は第1図の―線及び
―線断面図、第4図は同負圧ブースタが作動
を終えて休止状態に戻る直前の状態を示す部分縦
断側面図である。
B…負圧ブースタ、1…ブースタシエル、3a
…負圧室、3b…作動室、6…ブースタピストン
、6a…被挾止部、6b…直角屈曲部、6c…円
筒部、14…押え部材としての押え板、25…弁
筒、32…制御弁、35…入力杆。
The drawings show one embodiment of the present invention, and FIG. 1 is a vertical sectional side view of a tandem negative pressure booster in a rest state, and FIGS. 2 and 3 are sectional views taken along lines - and - in FIG. 1. , and FIG. 4 is a partial longitudinal sectional side view showing the negative pressure booster in a state immediately before returning to the rest state after completing its operation. B...Negative pressure booster, 1...Booster shell, 3a
...Negative pressure chamber, 3b... Working chamber, 6... Booster piston, 6a... Clamped part, 6b... Right angle bending part, 6c... Cylindrical part, 14... Holding plate as holding member, 25... Valve cylinder, 32... Control Valve, 35...input rod.
Claims (1)
に摺動自在に支承される弁筒を備えてブースタシ
エル内に収容される合成樹脂製ピストンボスと、
このピストンボスの後端面及びそれに固着される
押え部材間に挾止されてブースタシエル内を前部
の負圧室と後部の作動室とに区画する金属板製ブ
ースタピストンと、前記弁筒内に先端を突入させ
る入力杆と、この入力杆の前後動に応じて作動室
を大気及び負圧室に選択的に連通させるよう前記
弁筒に設けられる制御弁とを備えた負圧ブースタ
において、ブースタピストンには、ピストンボス
及び押え部材間に挾止されるブースタピストンの
被挾止部に直角屈曲部を介し連設されてピストン
ボス外周面を近接状態で囲繞する円筒部を設けた
ことを特徴とする、負圧ブースタ。 a booster shell; a synthetic resin piston boss housed within the booster shell and having a valve cylinder slidably supported on the rear wall of the booster shell;
A booster piston made of a metal plate is clamped between the rear end surface of the piston boss and a holding member fixed thereto to partition the interior of the booster shell into a negative pressure chamber at the front and an operating chamber at the rear; A negative pressure booster comprising an input rod into which the tip enters, and a control valve provided in the valve cylinder to selectively communicate the working chamber with the atmosphere and the negative pressure chamber according to the forward and backward movement of the input rod. The piston is characterized by being provided with a cylindrical part that is connected to the clamped part of the booster piston, which is clamped between the piston boss and the holding member, through a right-angled bent part and closely surrounds the outer peripheral surface of the piston boss. A negative pressure booster.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987169865U JPH0173458U (en) | 1987-11-06 | 1987-11-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987169865U JPH0173458U (en) | 1987-11-06 | 1987-11-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0173458U true JPH0173458U (en) | 1989-05-17 |
Family
ID=31460301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987169865U Pending JPH0173458U (en) | 1987-11-06 | 1987-11-06 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0173458U (en) |
-
1987
- 1987-11-06 JP JP1987169865U patent/JPH0173458U/ja active Pending
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