JPH0296249U - - Google Patents
Info
- Publication number
- JPH0296249U JPH0296249U JP12346388U JP12346388U JPH0296249U JP H0296249 U JPH0296249 U JP H0296249U JP 12346388 U JP12346388 U JP 12346388U JP 12346388 U JP12346388 U JP 12346388U JP H0296249 U JPH0296249 U JP H0296249U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder hole
- increased diameter
- groove
- cylinder
- hole
- 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
- 238000007789 sealing Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 1
Landscapes
- Transmission Of Braking Force In Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
Description
第１図は本考案の実施例を示す断面図、第２図
は上記実施例の環状部材き片面を示す図、第３図
ａは上記実施例における抜止めの平面、第３図ｂ
は第３図ａにおける―矢視図である。
１……シリンダ本体、２……シリンダ孔、３，
４……ボス部、５……作動液リザーバ、１２……
段部、１３……増径部、１５……ピストン、１５
Ａ……軸部、３５……密封部材、３６……環状部
材、３８……抜止め、４０……周方向の溝、４２
……径方向の溝、４３……基部、４４……係合部
、４４……係合片部。
Fig. 1 is a sectional view showing an embodiment of the present invention, Fig. 2 is a view showing one side of the annular member of the above embodiment, Fig. 3a is a plane of the retainer in the above embodiment, Fig. 3b
is a view taken along the - arrow in FIG. 3a. 1...Cylinder body, 2...Cylinder hole, 3,
4...Boss part, 5...Hydraulic fluid reservoir, 12...
Stepped part, 13... Increased diameter part, 15... Piston, 15
A... Shaft portion, 35... Sealing member, 36... Annular member, 38... Retainer, 40... Circumferential groove, 42
...Radial groove, 43...Base, 44...Engaging portion, 44...Engaging piece.
Claims (1)
ダ孔を有するシリンダ本体と、前記シリンダ孔に
摺動自在に嵌合する頭部と増径部を貫通してシリ
ンダ孔外部に突出する軸部とを有するピストンと
、ピストンによりシリンダ孔に画成された圧力室
と、ピストンの軸部と増径部との間に配置される
密封装置と、該密封装置と段部との間を作動液リ
ザーバに連絡されるボス部との内孔に連通する通
路と、ピストンの動きに応じてボス部の内孔と圧
力室との連通・遮断を行う弁装置とを備え、前記
密封装置が、軸部と増径部との間を密封する密封
部材と、密封部材の段部とは反対側に配置され軸
部と増径部との間に嵌合して軸部の摺動を案内す
る内周面を持つ環状部材と、該環状部材のシリン
ダ孔外部側に設けた抜止めとを有するマスタシリ
ンダにおいて、前記環状部材は、シリンダ孔外部
側に内周部と外周部との間の周方向の溝とこの溝
から外周部に向つて延びる径方向の溝とを有し、
前記抜止めは、周方向の溝に嵌り込む基部とこの
基部から径方向の溝内で伸びシリンダ孔に係合す
る係合部とを有しているマスタシリンダ。 A cylinder body having a cylinder hole with an increased diameter portion formed in the opening via a step, a head that slidably fits into the cylinder hole, and a shaft that penetrates the increased diameter portion and projects to the outside of the cylinder hole. a pressure chamber defined in the cylinder hole by the piston, a sealing device disposed between the shaft portion of the piston and the increased diameter portion, and actuating between the sealing device and the stepped portion. The sealing device includes a passageway communicating with the inner hole of the boss portion and communicating with the liquid reservoir, and a valve device that communicates and shuts off the inner hole of the boss portion and the pressure chamber according to the movement of the piston. A sealing member that seals between the shaft portion and the increased diameter portion; and a sealing member that is disposed on the opposite side of the stepped portion of the sealing member and fits between the shaft portion and the increased diameter portion to guide sliding of the shaft portion. In a master cylinder having an annular member having an inner circumferential surface and a retainer provided on the outside of the cylinder hole of the annular member, the annular member has a circumference between the inner circumference and the outer circumference on the outside of the cylinder hole. a groove in the direction and a groove in the radial direction extending from the groove toward the outer circumference,
The retainer is a master cylinder having a base portion that fits into the circumferential groove and an engaging portion that extends from the base portion within the radial groove and engages with the cylinder hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988123463U JPH0515180Y2 (en) | 1988-09-22 | 1988-09-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988123463U JPH0515180Y2 (en) | 1988-09-22 | 1988-09-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0296249U true JPH0296249U (en) | 1990-07-31 |
| JPH0515180Y2 JPH0515180Y2 (en) | 1993-04-21 |
Family
ID=31372338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988123463U Expired - Lifetime JPH0515180Y2 (en) | 1988-09-22 | 1988-09-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0515180Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61183767U (en) * | 1985-05-10 | 1986-11-15 | ||
| JPS62178266U (en) * | 1986-05-06 | 1987-11-12 |
-
1988
- 1988-09-22 JP JP1988123463U patent/JPH0515180Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61183767U (en) * | 1985-05-10 | 1986-11-15 | ||
| JPS62178266U (en) * | 1986-05-06 | 1987-11-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0515180Y2 (en) | 1993-04-21 |