JPS6422669U - - Google Patents
Info
- Publication number
- JPS6422669U JPS6422669U JP11895187U JP11895187U JPS6422669U JP S6422669 U JPS6422669 U JP S6422669U JP 11895187 U JP11895187 U JP 11895187U JP 11895187 U JP11895187 U JP 11895187U JP S6422669 U JPS6422669 U JP S6422669U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- hole
- cylinder
- valve seat
- guide
- 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
- 239000007788 liquid Substances 0.000 description 1
Landscapes
- Transmission Of Braking Force In Braking Systems (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Description
図は本考案の一実施例を示すもので、第１図は
センタバルブ型液圧マスタシリンダの非作動時の
要部拡大断面図、第２図は同じく断面正面図、第
３図及び第４図はそれぞれ作動状態を示す要部拡
大断面図である。
１……センタバルブ型の液圧マスタシリンダ、
２……シリンダボデイ、３……シリンダ孔、４…
…プツシユロツド、５……ピストン、６……リザ
ーバ、８……液圧室、９……突出口、１０……連
通孔、１１……ガイド孔、１１ａ……底壁、１２
……ステムガイド穴、１３……バルブステム、１
３ａ……基端頭部、１３ｂ……ガイド軸部、１３
ｅ……ベース支持面、１５……センタバルブとな
る弁体、１５ａ……弁頭、１５ｂ……ベース部、
１５ｃ……リツプ部、１５ｄ……凹部、１５ｅ…
…後端面、１６……バルブガイド、１７……リタ
ーンスプリング、１９……液通路、１９ａ……軸
孔、１９ｂ……小孔、２０……弁座、２０ａ……
テーパ面、ｌ１……弁頭１５ａと弁座２０との間
に設定される無効ストローク、ｌ２……非作動時
のバルブステム１３のガイド軸部１３ｂの先端と
ガイド孔１１の底壁１１ａとの間の間隙。
The figures show one embodiment of the present invention, in which Fig. 1 is an enlarged sectional view of the main part of a center valve type hydraulic master cylinder when it is not in operation, Fig. 2 is a sectional front view of the same, and Figs. Each figure is an enlarged sectional view of a main part showing an operating state. 1...Center valve type hydraulic master cylinder,
2...Cylinder body, 3...Cylinder hole, 4...
... Push rod, 5 ... Piston, 6 ... Reservoir, 8 ... Hydraulic pressure chamber, 9 ... Projection port, 10 ... Communication hole, 11 ... Guide hole, 11a ... Bottom wall, 12
... Stem guide hole, 13 ... Valve stem, 1
3a... Proximal head, 13b... Guide shaft portion, 13
e... Base support surface, 15... Valve body serving as a center valve, 15a... Valve head, 15b... Base part,
15c...Rip part, 15d...Concave part, 15e...
... Rear end surface, 16 ... Valve guide, 17 ... Return spring, 19 ... Liquid passage, 19a ... Shaft hole, 19b ... Small hole, 20 ... Valve seat, 20a ...
Tapered surface, l 1 ... Ineffective stroke set between the valve head 15a and the valve seat 20, l 2 ... The tip of the guide shaft portion 13b of the valve stem 13 and the bottom wall 11a of the guide hole 11 when inactive the gap between.
Claims (1)
ンに、シリンダ孔底部の液圧室に突出するバルブ
ステムを支持し、該バルブステムの先端に、シリ
ンダ孔の底壁に当接して、液圧室とリザーバとを
連通する連通孔を閉塞する弁体を嵌着したセンタ
バルブ型液圧マスタシリンダにおいて、前記シリ
ンダ孔の底壁に、前記連通孔よりも大径のガイド
孔を連通孔に連続形成すると共に、シリンダ孔の
底壁に開口するガイド孔の外周に、前記弁体方向
へ先細り状に突出する弁座を周設し、一方前記バ
ルブステムの先端には、前記ガイド孔を摺動する
ガイド軸部を突出して設け、前記弁座と当接する
弁体の弁頭外周には、弁座を抱持するリツプ部を
周状に突設したことを特徴とするセンタバルブ型
液圧マスタシリンダ。 A valve stem that protrudes into the hydraulic pressure chamber at the bottom of the cylinder hole is supported on the piston that slides through the cylinder hole of the cylinder body. In a center valve type hydraulic master cylinder fitted with a valve body that closes a communication hole that communicates with A valve seat is provided around the outer periphery of a guide hole that opens in the bottom wall of the cylinder hole and projects in a tapered manner toward the valve body, while a guide shaft that slides in the guide hole is provided at the tip of the valve stem. 1. A center valve type hydraulic master cylinder, characterized in that a lip portion for holding the valve seat is provided in a circumferential manner on the outer periphery of the valve head of the valve body that comes into contact with the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11895187U JPH0340682Y2 (en) | 1987-08-03 | 1987-08-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11895187U JPH0340682Y2 (en) | 1987-08-03 | 1987-08-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6422669U true JPS6422669U (en) | 1989-02-06 |
| JPH0340682Y2 JPH0340682Y2 (en) | 1991-08-27 |
Family
ID=31363752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11895187U Expired JPH0340682Y2 (en) | 1987-08-03 | 1987-08-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0340682Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011027693A1 (en) * | 2009-09-03 | 2011-03-10 | 株式会社エクセディ | Clutch operation device |
-
1987
- 1987-08-03 JP JP11895187U patent/JPH0340682Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011027693A1 (en) * | 2009-09-03 | 2011-03-10 | 株式会社エクセディ | Clutch operation device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0340682Y2 (en) | 1991-08-27 |