JPH03102365U - - Google Patents
Info
- Publication number
- JPH03102365U JPH03102365U JP1076490U JP1076490U JPH03102365U JP H03102365 U JPH03102365 U JP H03102365U JP 1076490 U JP1076490 U JP 1076490U JP 1076490 U JP1076490 U JP 1076490U JP H03102365 U JPH03102365 U JP H03102365U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- valve piston
- piston
- booster
- connecting 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.)
- Pending
Links
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Braking Systems And Boosters (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Braking Arrangements (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
要部拡大図である。
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、１４……ピストンボス、２４……制
御弁、２６……入力杆、２６ａ……球状連結部、
２７……ブレーキペダル、２８……弁ピストン、
４１……出力杆、４５……挿入穴、４６……押圧
面、４７……抜止め部材、４８……ばね、Ｂ……
負圧ブースタ。
The drawings show one embodiment of the present invention, and FIG. 1 is a vertical sectional side view of a negative pressure booster, and FIG. 2 is an enlarged view of the main part of FIG. 1. 1... Booster shell, 2a, 3a... Negative pressure chamber, 2b, 3b... Working chamber, 10, 12... Booster piston, 14... Piston boss, 24... Control valve, 26... Input rod, 26a ... Spherical connection part,
27...brake pedal, 28...valve piston,
41... Output rod, 45... Insertion hole, 46... Pressing surface, 47... Removal prevention member, 48... Spring, B...
Negative pressure booster.
Claims (1)
負圧室２ａ，３ａに前面を臨ませるとともに作動
室２ｂ，３ｂに背面を臨ませるブースタピストン
１０，１２が収容され、該ブースタピストン１０
，１２の中央部に設けられるピストンボス１４の
前部には前方に延びる出力杆４１が連結され、前
記作動室２ｂ，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２４を切換
作動せしめるための弁ピストン２８が前記ピスト
ンボス１４に摺動自在に嵌合され、ブレーキペダ
ル２７に連結された入力杆２６の前端に設けられ
る球状連結部２６ａが、前記弁ピストン２８の後
部に揺動可能に連結される負圧ブースタにおいて
、弁ピストン２８の後部には入力杆２６の球状連
結部２６ａを挿入する有底の挿入穴４５がその閉
塞端を前端として設けられ、球状連結部２６ａの
後部外面に摺接する押圧面４６を先端に有する抜
止め部材４７が球状連結部２６ａに対する近接・
離反移動を可能として弁ピストン２８に配設され
、該抜止め部材４７および弁ピストン２８間には
抜止め部材４７を球状連結部２６ａ側に弾発付勢
するばね４８が介設され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 have their front faces facing negative pressure chambers 2a and 3a that are constantly in communication with a negative pressure source, and their back faces facing working chambers 2b and 3b.
, 12, an output rod 41 extending forward is connected to the front part of the piston boss 14 provided at the center of the piston boss 14, and a control valve for switching the communication state of the working chambers 2b, 3b with the negative pressure chambers 2a, 3a and the atmosphere. A valve piston 28 for switching and operating the valve piston 24 is slidably fitted into the piston boss 14, and a spherical connecting portion 26a provided at the front end of the input rod 26 connected to the brake pedal 27 is connected to the valve piston 28. In the negative pressure booster that is swingably connected to the rear part, a bottomed insertion hole 45 into which the spherical connection part 26a of the input rod 26 is inserted is provided at the rear part of the valve piston 28, with its closed end as the front end, and the spherical connection A retaining member 47, which has a pressing surface 46 at its tip that slides against the rear outer surface of the portion 26a, is attached to the spherical connecting portion 26a.
A spring 48 is disposed on the valve piston 28 to enable separation movement, and a spring 48 is interposed between the retaining member 47 and the valve piston 28 to bias the retaining member 47 toward the spherical connecting portion 26a. Negative pressure booster with special features.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1076490U JPH03102365U (en) | 1990-02-06 | 1990-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1076490U JPH03102365U (en) | 1990-02-06 | 1990-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03102365U true JPH03102365U (en) | 1991-10-24 |
Family
ID=31514317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1076490U Pending JPH03102365U (en) | 1990-02-06 | 1990-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03102365U (en) |
-
1990
- 1990-02-06 JP JP1076490U patent/JPH03102365U/ja active Pending