JPH03102366U - - Google Patents
Info
- Publication number
- JPH03102366U JPH03102366U JP1076590U JP1076590U JPH03102366U JP H03102366 U JPH03102366 U JP H03102366U JP 1076590 U JP1076590 U JP 1076590U JP 1076590 U JP1076590 U JP 1076590U JP H03102366 U JPH03102366 U JP H03102366U
- Authority
- JP
- Japan
- Prior art keywords
- booster
- negative pressure
- limit position
- pistons
- input rod
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 6
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
は負圧ブースタの縦断側面図、第２図は第１図の
−線拡大断面図である。
１……ブースタシエル、２ａ，３ａ……負圧室
、２ｂ，３ｂ……作動室、１０，１２……ブース
タピストン、１７……戻しばね、２５……制御弁
、２８……入力杆、４１……出力杆、４４……後
退限位置規制手段、４５……規制ブースタ、４６
……可動ストツパ部材、Ｂ……負圧ブースタ。
The drawings show an embodiment of the present invention, in which FIG. 1 is a vertical side view of a negative pressure booster, and FIG. 2 is an enlarged cross-sectional view taken along the - line in FIG. 1. DESCRIPTION OF SYMBOLS 1... Booster shell, 2a, 3a... Negative pressure chamber, 2b, 3b... Working chamber, 10, 12... Booster piston, 17... Return spring, 25... Control valve, 28... Input rod, 41 ...Output rod, 44...Reverse limit position regulating means, 45...Regulation booster, 46
...Movable stopper member, B...Negative pressure booster.
Claims (1)
結されながら戻しばね１７により後退方向に付勢
されるブースタピストン１０，１２が収容される
とともに、該ブースタピストン１０，１２の前側
で負圧源に常時連通する負圧室２ａ，３ａと、ブ
ースタピストン１０，１２の後側の作動室２ｂ，
３ｂとが形成され、ブースタピストン１０，１２
と、該ブースタピストン１０，１２に進退自在に
連結される入力杆２８との間には、前記作動室２
ｂ，３ｂの前記負圧室２ａ，３ａおよび大気との
連通状態を切換える制御弁２５が設けられ、ブー
スタシエル１および入力杆２８間には、入力杆２
８の後退限位置を規制する後退限位置規制手段４
４が設けられる負圧ブースタにおいて、後退限位
置規制手段４４は、ブースタシエル１に設けられ
た規制部４５と、該規制部４５に前方側から当接
すべく前記入力杆２８に対する後退方向の段階的
移動のみを可能として該入力杆２８にラチエツト
係合される可動ストツパ部材４６とから成ること
を特徴とする負圧ブースタ。 Booster pistons 10 and 12 are housed in the booster shell 1 and are urged in the backward direction by a return spring 17 while being connected to an output rod 41 at the front thereof, and a negative pressure source is provided in front of the booster pistons 10 and 12 Negative pressure chambers 2a, 3a are always in communication with the booster pistons 10, 12, and working chambers 2b,
3b is formed, and the booster pistons 10, 12
The working chamber 2 is located between the
A control valve 25 is provided between the booster shell 1 and the input rod 28 to switch the state of communication with the negative pressure chambers 2a, 3a and the atmosphere.
Reverse limit position regulating means 4 for regulating the reverse limit position of 8.
4, the backward limit position regulating means 44 includes a regulating section 45 provided in the booster shell 1, and a step in the retreating direction relative to the input rod 28 in order to abut the regulating section 45 from the front side. A negative pressure booster comprising a movable stopper member 46 that is ratcheted to the input rod 28 so as to allow only targeted movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1076590U JPH0523432Y2 (en) | 1990-02-06 | 1990-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1076590U JPH0523432Y2 (en) | 1990-02-06 | 1990-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03102366U true JPH03102366U (en) | 1991-10-24 |
| JPH0523432Y2 JPH0523432Y2 (en) | 1993-06-15 |
Family
ID=31514318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1076590U Expired - Lifetime JPH0523432Y2 (en) | 1990-02-06 | 1990-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0523432Y2 (en) |
-
1990
- 1990-02-06 JP JP1076590U patent/JPH0523432Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0523432Y2 (en) | 1993-06-15 |