JPS61205858U - - Google Patents
Info
- Publication number
- JPS61205858U JPS61205858U JP9079185U JP9079185U JPS61205858U JP S61205858 U JPS61205858 U JP S61205858U JP 9079185 U JP9079185 U JP 9079185U JP 9079185 U JP9079185 U JP 9079185U JP S61205858 U JPS61205858 U JP S61205858U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- housing
- brake booster
- rod
- end 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.)
- Granted
Links
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
Landscapes
- Braking Systems And Boosters (AREA)
Description
第１図は本考案の一実施例に係るブレーキブー
スタの断面図、第２図は同ブレーキブースタの要
部拡大断面図、第３図は同ブレーキブースタにお
ける踏力と反力の関係の一例を示すグラフ、第４
図はブレーキフイーリングの良好な状態における
踏力と制動力との関係を示すグラフである。
符号の説明、１０……ハウジング、２０……パ
ワーピストン、２１……ピストン本体、２２，２
３……ダイアフラム、３１……オペレーシヨンロ
ツド、３２……リアクシヨンゴム、３３……プラ
ンジヤ、３４……プツシユロツド、３８……スリ
ーブ、３９……圧縮スプリング、４０……バルブ
機構。
Fig. 1 is a sectional view of a brake booster according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view of essential parts of the brake booster, and Fig. 3 shows an example of the relationship between pedal force and reaction force in the brake booster. graph, 4th
The figure is a graph showing the relationship between pedal force and braking force when the brake feeling is in good condition. Explanation of symbols, 10...Housing, 20...Power piston, 21...Piston body, 22,2
3... Diaphragm, 31... Operation rod, 32... Reaction rubber, 33... Plunger, 34... Push rod, 38... Sleeve, 39... Compression spring, 40... Valve mechanism.
Claims (1)
て前記ハウジング内を定圧室と変圧室とに区画す
るパワーピストンと、このパワーピストンのピス
トン本体に設けた段付孔の大径部内に弾性のリア
クシヨン部材を介してその後端部を軸方向へ移動
可能に嵌挿されて前記ハウジングの前部を気密的
かつ摺動可能に突出するロツド状の出力部材と、
前記段付孔の小径部内に軸方向へ移動可能に嵌挿
されて前記リアクシヨン部材に対向するプランジ
ヤと、このプランジヤの後端部にその前端部を係
合されて前記ハウジングの後部を突出し前方への
移動時に前記両室間の差圧を制御するバルブを作
動させるロツド状の入力部材を備えてなるブレー
キブースタにおいて、前記段付孔の小径部内周と
前記プランジヤの外周間に前方への移動時には同
プランジヤの所定の部位に係合してそれ以上の前
方への移動を規制されかつ後方への移動時には前
記小径部内周の所定の部位に係合してそれ以上の
後方への移動を規制されるスリーブを組付けると
ともに、このスリーブと前記プランジヤ間に同ス
リーブを付勢して前記プランジヤの所定の部位に
弾撥的に係合させる圧縮スプリングを介装させた
ことを特徴とするブレーキブースタ。 A power piston is disposed within a housing and uses its diaphragm to divide the inside of the housing into a constant pressure chamber and a variable pressure chamber, and an elastic reaction member is disposed within a large diameter portion of a stepped hole provided in the piston body of the power piston. a rod-shaped output member whose rear end portion is fitted so as to be movable in the axial direction through the rod-shaped output member and protrudes from the front portion of the housing in an airtight and slidable manner;
a plunger that is fitted into the small diameter portion of the stepped hole so as to be movable in the axial direction and faces the reaction member; and a front end portion of the plunger that is engaged with the rear end portion of the plunger to project the rear portion of the housing and move forward. In the brake booster, the brake booster is provided with a rod-shaped input member that operates a valve for controlling the differential pressure between the two chambers when the plunger moves forward. The plunger engages with a predetermined portion of the plunger to restrict further forward movement, and when moving rearward, engages with a predetermined portion of the inner periphery of the small diameter portion to restrict further rearward movement. 1. A brake booster comprising: a compression spring which is assembled between the sleeve and the plunger, and which urges the sleeve to elastically engage a predetermined portion of the plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985090791U JPH0357568Y2 (en) | 1985-06-14 | 1985-06-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985090791U JPH0357568Y2 (en) | 1985-06-14 | 1985-06-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61205858U true JPS61205858U (en) | 1986-12-25 |
| JPH0357568Y2 JPH0357568Y2 (en) | 1991-12-27 |
Family
ID=30646099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985090791U Expired JPH0357568Y2 (en) | 1985-06-14 | 1985-06-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0357568Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0325368U (en) * | 1989-07-20 | 1991-03-15 | ||
| JP2001187568A (en) * | 1999-12-28 | 2001-07-10 | Tokico Ltd | Air pressure type booster |
-
1985
- 1985-06-14 JP JP1985090791U patent/JPH0357568Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0325368U (en) * | 1989-07-20 | 1991-03-15 | ||
| JP2001187568A (en) * | 1999-12-28 | 2001-07-10 | Tokico Ltd | Air pressure type booster |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0357568Y2 (en) | 1991-12-27 |
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