JPS6347974U - - Google Patents
Info
- Publication number
- JPS6347974U JPS6347974U JP14236686U JP14236686U JPS6347974U JP S6347974 U JPS6347974 U JP S6347974U JP 14236686 U JP14236686 U JP 14236686U JP 14236686 U JP14236686 U JP 14236686U JP S6347974 U JPS6347974 U JP S6347974U
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- valve
- operating rod
- plunger
- power piston
- 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)
Description
図は本考案に従つた負圧式倍力装置の一実施例
を示す断面図である。
１０……負圧式倍力装置、１１……フロントシ
エル、１２……リヤシエル、１３……パワーピス
トン、１３ａ……内孔、１３ｂ……内孔段部、１
３ｄ……小径孔、１５……ダイアフラム、１７…
…定圧室、１８……変圧室、２６……バルブオペ
レーテイングロツド、２７……バルブプランジヤ
、２７ａ……シート面、２８……コントロールバ
ルブ、２８ａ……大径段部、２８ｂ……小径段部
、２８ｃ……シール面、２９……第１コニカルス
プリング、３２……第２コニカルスプリング、Ｖ
……制御弁機構。
The figure is a sectional view showing an embodiment of a negative pressure booster according to the present invention. 10... Negative pressure booster, 11... Front shell, 12... Rear shell, 13... Power piston, 13a... Inner hole, 13b... Inner hole step, 1
3d...Small diameter hole, 15...Diaphragm, 17...
... Constant pressure chamber, 18 ... Variable pressure chamber, 26 ... Valve operating rod, 27 ... Valve plunger, 27a ... Seat surface, 28 ... Control valve, 28a ... Large diameter step, 28b ... Small diameter step , 28c... Seal surface, 29... First conical spring, 32... Second conical spring, V
...Control valve mechanism.
Claims (1)
るパワーピストン及びダイアフラムと、該パワー
ピストンに形成される小径孔内に摺動可能に嵌合
されるバルブプランジヤと、該バルブプランジヤ
にその端部が固定され、ペダルに連動し前記バル
ブプランジヤを前記小径孔内を摺動させるバルブ
オペーテイングロツドと、前記パワーピストンの
大径孔内に配されその端面を前記バルブプランジ
ヤの後端部シート面及び前記パワーピストンのシ
ート面に当接可能なコントロールバルブと、該コ
ントロールバルブ内に前記オペレーテイングロツ
ドに同心に配され、前記コントロールバルブの端
面を前記バルブプランジヤの後端部シート面に向
けて付勢する第１スプリング及び前記コントロー
ルバルブ内に前記バルブオペレーテイングロツド
を同心に配され前記バルブプランジヤを前記バル
ブオペレーテイングロツドを介して前記コントロ
ールバルブに向けて付勢する第２スプリングとを
有した負圧式倍力装置に於いて、前記第１スプリ
ングを前記コントロールバルブの外周段部に一端
を係止し前記コントロールバルブの端面を前記バ
ルブプランジヤのシート面に向けて付勢するよう
に前記コントロールバルブの外周に配したことを
特徴とする負圧式倍力装置。 A power piston and a diaphragm defining a constant pressure chamber and a variable pressure chamber in a housing; a valve plunger slidably fitted into a small diameter hole formed in the power piston; a valve operating rod that is fixed and interlocked with a pedal and slides the valve plunger in the small diameter hole; and a control valve that can come into contact with the seat surface of the power piston, and a control valve that is disposed within the control valve concentrically with the operating rod and that is attached with an end surface of the control valve facing the rear end seat surface of the valve plunger. a first spring biasing the valve operating rod within the control valve; and a second spring disposed concentrically within the control valve biasing the valve plunger toward the control valve via the valve operating rod. In the pressure type booster, one end of the first spring is locked to an outer circumferential step of the control valve, and the control valve is configured to bias an end surface of the control valve toward a seat surface of the valve plunger. A negative pressure booster characterized by being placed around the outer periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14236686U JPS6347974U (en) | 1986-09-17 | 1986-09-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14236686U JPS6347974U (en) | 1986-09-17 | 1986-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6347974U true JPS6347974U (en) | 1988-03-31 |
Family
ID=31051035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14236686U Pending JPS6347974U (en) | 1986-09-17 | 1986-09-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6347974U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010234958A (en) * | 2009-03-31 | 2010-10-21 | Advics Co Ltd | Vacuum booster |
-
1986
- 1986-09-17 JP JP14236686U patent/JPS6347974U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010234958A (en) * | 2009-03-31 | 2010-10-21 | Advics Co Ltd | Vacuum booster |
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