JPS6337464U - - Google Patents
Info
- Publication number
- JPS6337464U JPS6337464U JP13111386U JP13111386U JPS6337464U JP S6337464 U JPS6337464 U JP S6337464U JP 13111386 U JP13111386 U JP 13111386U JP 13111386 U JP13111386 U JP 13111386U JP S6337464 U JPS6337464 U JP S6337464U
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- negative pressure
- key
- piston
- plate
- 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
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Braking Systems And Boosters (AREA)
Description
第１図は本考案の実施例を示す負圧式倍力装置
の側断面図、第２図は第１図のＡ〜Ａ断面図であ
る。
図の主要部分の説明、１，２……ハウジング、
４……ダイアフラム、４ａ……プレート、５……
ピストン、６……負圧室、７……変圧室、１０…
…プツシユロツド、１１……バルブプランジヤ、
１２……コントロールバルブ、１４……スプリン
グ、１５……シート、１６，１７……通孔、１８
……復帰用スプリング、１９……環状溝、２０…
…キー、２０ａ……二又部、２０ｂ……腕部、２
０ｃ……突起、２１……孔、２６……円筒部、２
７……屈曲部、２９……突出部。
FIG. 1 is a side sectional view of a negative pressure booster showing an embodiment of the present invention, and FIG. 2 is a sectional view taken from A to A in FIG. 1. Explanation of the main parts of the diagram, 1, 2...housing,
4...Diaphragm, 4a...Plate, 5...
Piston, 6... negative pressure chamber, 7... variable pressure chamber, 10...
...Push rod, 11...Valve plunger,
12...Control valve, 14...Spring, 15...Seat, 16, 17...Through hole, 18
...Returning spring, 19...Annular groove, 20...
...key, 20a...forked part, 20b...arm part, 2
0c...Protrusion, 21...Hole, 26...Cylindrical part, 2
7...Bending portion, 29...Protruding portion.
Claims (1)
動により左右動するバルブプランジヤを設け、該
プランジヤを内蔵するピストンに設けられた孔に
半径方向から挿入されると共に、前記バルブプラ
ンジヤの環状溝に中央部の二又部が該プランジヤ
を挾むように挿入されるキーを有し、作動休止時
にはハウジングに該キーの基部が当接して、前記
プランジヤが前記パワーピストンに対し所定量以
上後退しないようにした負圧式倍力装置において
、該倍力装置を負圧室と変圧室に区画するダイア
フラムの中央部に連結されたプレートの中央開孔
部を、前記ピストンの大径部に気密状に固定する
と共に、該プレートの開口端部に突出部を設け、
前記キーの二又部を上方に延長して該延長部で前
記プレートの突出部を挾むと共に、該延長部の先
端内側に該突出部に係合する突起を設けて前記キ
ーの抜け落ちを防止することを特徴とする負圧式
倍力装置。 A valve plunger is provided which moves left and right by the movement of a push rod in conjunction with the brake pedal, and is inserted from the radial direction into a hole provided in a piston containing the plunger, and a fork in the center is inserted into an annular groove of the valve plunger. In a negative pressure booster, the negative pressure booster has a key inserted so as to sandwich the plunger, and the base of the key comes into contact with the housing when the operation is stopped to prevent the plunger from retracting more than a predetermined amount with respect to the power piston. , the central opening of a plate connected to the central part of the diaphragm that divides the booster into a negative pressure chamber and a variable pressure chamber is airtightly fixed to the large diameter portion of the piston, and the open end of the plate is A protruding part is provided in the part,
The forked portion of the key is extended upward to sandwich the protruding portion of the plate with the extended portion, and a protrusion that engages with the protruding portion is provided inside the tip of the extended portion to prevent the key from falling out. A negative pressure booster characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13111386U JPS6337464U (en) | 1986-08-29 | 1986-08-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13111386U JPS6337464U (en) | 1986-08-29 | 1986-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6337464U true JPS6337464U (en) | 1988-03-10 |
Family
ID=31029254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13111386U Pending JPS6337464U (en) | 1986-08-29 | 1986-08-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6337464U (en) |
-
1986
- 1986-08-29 JP JP13111386U patent/JPS6337464U/ja active Pending