JPS6419564U - - Google Patents
Info
- Publication number
- JPS6419564U JPS6419564U JP11553687U JP11553687U JPS6419564U JP S6419564 U JPS6419564 U JP S6419564U JP 11553687 U JP11553687 U JP 11553687U JP 11553687 U JP11553687 U JP 11553687U JP S6419564 U JPS6419564 U JP S6419564U
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- power piston
- pressure chamber
- valve
- filter
- 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
- 239000013013 elastic material Substances 0.000 claims 1
Landscapes
- Braking Systems And Boosters (AREA)
Description
第1図は本考案に従つた負圧式倍力装置の一実
施例を示す断面図、第2図は本考案の変形実施例
を示す要部断面図である。
10……負圧式倍力装置、11,12……ハウ
ジング、13……パワーピストン、13g……シ
ート部、14……ダイアフラム、17……定圧室
、18……変圧室、19……オペレーテイングロ
ツド、20……バルブプランジヤ、21……コン
トロールバルブ、22……フイルタ、34……出
力ロツド、V……制御弁。
FIG. 1 is a sectional view showing an embodiment of a negative pressure booster according to the present invention, and FIG. 2 is a sectional view of essential parts showing a modified embodiment of the present invention. 10... Negative pressure booster, 11, 12... Housing, 13... Power piston, 13g... Seat portion, 14... Diaphragm, 17... Constant pressure chamber, 18... Variable pressure chamber, 19... Operating unit 20... Valve plunger, 21... Control valve, 22... Filter, 34... Output rod, V... Control valve.
Claims (1)
圧室とに区画するパワーピストン及びダイアフラ
ムと、該パワーピストンに摺動可能に嵌合されブ
レーキペダルにプツシユロツドを介して連動する
バルブプランジヤ及び該バルブプランジヤの後端
に通常時当接するコントロールバルブから成る制
御弁と、該制御弁の前記コントロールバルブを前
方に付勢する付勢手段とを備え、前記制御弁の前
記コントロールバルブが前記バルブプランジヤと
共にブレーキペダルに連動し、前記パワーピスト
ンのシート面に当接して前記定圧室と前記変圧室
の連通を遮断し、前記バルブプランジヤと前記コ
ントロールバルブが離間して前記変圧室内に前記
パワーピストン内に収容されたフイルタを介して
大気を導入し前記両室に圧力差を生じさせ、前記
パワーピストンに連動する出力ロツドに作動力を
発生させる負圧式倍力装置において、前記フイル
タを発泡弾性体から構成し、該フイルタにより前
記付勢手段を構成させたことを特徴とする負圧式
倍力装置。 A power piston and a diaphragm that divide the inside of the housing into a variable pressure chamber and a constant pressure chamber where negative pressure always acts; a valve plunger that is slidably fitted into the power piston and interlocks with a brake pedal via a push rod; and the valve plunger. A control valve comprising a control valve normally in contact with a rear end thereof, and urging means for urging the control valve of the control valve forward, the control valve of the control valve being pressed together with the valve plunger to the brake pedal. The control valve contacts the seat surface of the power piston to cut off communication between the constant pressure chamber and the variable pressure chamber, and the valve plunger and the control valve are separated and housed in the power piston within the variable pressure chamber. In a negative pressure booster that introduces atmospheric air through a filter to create a pressure difference between the two chambers and generate an operating force in an output rod that is linked to the power piston, the filter is made of a foamed elastic material, and A negative pressure booster characterized in that the biasing means is constituted by a filter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11553687U JPS6419564U (en) | 1987-07-28 | 1987-07-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11553687U JPS6419564U (en) | 1987-07-28 | 1987-07-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6419564U true JPS6419564U (en) | 1989-01-31 |
Family
ID=31357285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11553687U Pending JPS6419564U (en) | 1987-07-28 | 1987-07-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6419564U (en) |
-
1987
- 1987-07-28 JP JP11553687U patent/JPS6419564U/ja active Pending
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