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 |