JPH0182972U - - Google Patents
Info
- Publication number
- JPH0182972U JPH0182972U JP1987178234U JP17823487U JPH0182972U JP H0182972 U JPH0182972 U JP H0182972U JP 1987178234 U JP1987178234 U JP 1987178234U JP 17823487 U JP17823487 U JP 17823487U JP H0182972 U JPH0182972 U JP H0182972U
- Authority
- JP
- Japan
- Prior art keywords
- stepped piston
- pressure chamber
- small hole
- stepped
- hole 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
Landscapes
- Braking Systems And Boosters (AREA)
- Vibration Prevention Devices (AREA)
Description
第1図は本考案の実施例を示す縦断面図、第2
図および第3図は本考案の他の実施例の要部を示
す断面図である。
3,7……シリンダ孔、4……エアシリンダ本
体、5……液圧シリンダ本体、6……ブースタ本
体、12……ピストンの軸部、13……ピストン
のピストン部、14……戻しばね、15……無圧
室、16……空圧室、23……ストツパピン、2
5……弁本体、27B……弾性緩衝体であるゴム
リング、60……弾性緩衝体であるキヤツプ部材
、70……弾性緩衝体であるコイルばね。
Fig. 1 is a vertical sectional view showing an embodiment of the present invention;
3 and 3 are sectional views showing essential parts of another embodiment of the present invention. 3, 7...Cylinder hole, 4...Air cylinder body, 5...Hydraulic cylinder body, 6...Booster body, 12...Piston shaft part, 13...Piston part, 14...Return spring , 15...No-pressure chamber, 16...Pneumatic chamber, 23...Stoppa pin, 2
5... Valve body, 27B... Rubber ring serving as an elastic buffer, 60... Cap member serving as an elastic buffer, 70... Coil spring serving as an elastic buffer.
Claims (1)
体と、小径部を前記小孔部に、大径部を前記大孔
部に各々摺動自在に挿入した段付状ピストンと、
該段付状ピストンにより前記小孔部内に区画され
る液圧室と、前記段付状ピストンにより前記大孔
部内の前記小孔部側に区画される無圧室と反対側
に区画される空圧室と、前記段付状ピストンを前
記空圧室側に付勢する戻しばねと、前記段付状ピ
ストンと係合して戻り位置を規定するストツパと
を有するブレーキブースタにおいて、前記本体と
前記段付状ピストンとの間に、前記段付状ピスト
ンと前記ストツパとが係合する直前に作用する弾
性緩衝体を設けたブレーキブースタ。 a main body formed with a stepped hole having a small hole portion and a large hole portion; a stepped piston having a small diameter portion slidably inserted into the small hole portion and a large diameter portion slidably inserted into the large hole portion;
A hydraulic chamber defined within the small hole by the stepped piston, and a space defined on the opposite side of the non-pressure chamber defined on the small hole side of the large hole by the stepped piston. A brake booster comprising a pressure chamber, a return spring that biases the stepped piston toward the air pressure chamber, and a stopper that engages with the stepped piston to define a return position, wherein the main body and the A brake booster comprising an elastic buffer provided between a stepped piston and an elastic buffer that acts immediately before the stepped piston and the stopper engage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987178234U JPH0182972U (en) | 1987-11-25 | 1987-11-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987178234U JPH0182972U (en) | 1987-11-25 | 1987-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0182972U true JPH0182972U (en) | 1989-06-02 |
Family
ID=31469858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987178234U Pending JPH0182972U (en) | 1987-11-25 | 1987-11-25 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0182972U (en) |
-
1987
- 1987-11-25 JP JP1987178234U patent/JPH0182972U/ja active Pending