JPH03122973U - - Google Patents
Info
- Publication number
- JPH03122973U JPH03122973U JP3349290U JP3349290U JPH03122973U JP H03122973 U JPH03122973 U JP H03122973U JP 3349290 U JP3349290 U JP 3349290U JP 3349290 U JP3349290 U JP 3349290U JP H03122973 U JPH03122973 U JP H03122973U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pressure
- small diameter
- piston
- pressure chamber
- system hydraulic
- 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
- 239000012530 fluid Substances 0.000 claims 1
Landscapes
- Hydraulic Control Valves For Brake Systems (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Description
第１図は本考案に従つた制動液圧制御装置の一
実施例を示す断面図、第２図は第１図に示す一実
施例におけるフロント系液圧回路が失陥した状態
を示す一部断面図である。
１０……タンデムマスタシリンダ、１１……ボ
デイ、１３……シリンダ内孔、１５……セカンダ
リピストン（ピストン）、１６……フロント系液
圧室、１７……リヤ系液圧室、１８……段付内孔
、１９……小径部、２２……ピストン、Ｐ……プ
ロポーシヨニングバルブ、Ｈ……所定量、ｈ……
間隙、Ａ……制動液圧制御装置。
FIG. 1 is a sectional view showing an embodiment of a brake hydraulic pressure control device according to the present invention, and FIG. 2 is a partial view showing a state in which the front hydraulic pressure circuit in the embodiment shown in FIG. 1 has failed. FIG. 10...Tandem master cylinder, 11...Body, 13...Cylinder inner hole, 15...Secondary piston (piston), 16...Front system hydraulic pressure chamber, 17...Rear system hydraulic pressure chamber, 18...Stage Inner hole with attached, 19... Small diameter part, 22... Piston, P... Proportioning valve, H... Predetermined amount, h...
Gap, A...braking fluid pressure control device.
Claims (1)
液圧室が形成されるタンデムマスタシリンダのボ
デイに前記シリンダ内孔の軸心に交わつて互いに
連通すると共に、前記シリンダ内孔側のその小径
部開口が前記フロント系液圧室を区画形成するピ
ストンにより前記フロント系液圧室の液圧失陥時
に閉塞される段付内孔と、該段付内孔内に軸方向
へ液密的に摺動可能に嵌挿されるピストンを有し
該ピストンが前記小径部開口側へ所定量摺動する
ことにより前記リヤ系液圧回路とリヤ系液圧回路
間の連通を遮断して前記リヤ系液圧回路に付与さ
れる液圧を減圧制御するプロポーシヨニングバル
ブとを備えてなり、前記小径部に嵌挿される前記
ピストンの端面と前記小径部の開口との間に前記
所定量よりも小さい間隙を設けてなる制動液圧制
御装置。 A body of a tandem master cylinder in which a front system hydraulic pressure chamber and a rear system hydraulic pressure chamber are formed in the cylinder internal hole, intersect with the axis of the cylinder internal hole and communicate with each other, and a small diameter portion thereof on the cylinder internal hole side. a stepped inner hole whose opening is closed when hydraulic pressure in the front hydraulic pressure chamber is lost by a piston defining the front hydraulic pressure chamber; It has a piston that is movably inserted, and when the piston slides a predetermined amount toward the opening side of the small diameter portion, communication between the rear system hydraulic pressure circuit and the rear system hydraulic pressure circuit is cut off, and the rear system hydraulic pressure is reduced. a proportioning valve that controls the pressure reduction of the hydraulic pressure applied to the circuit, and a gap smaller than the predetermined amount is provided between the end face of the piston that is inserted into the small diameter part and the opening of the small diameter part. A brake fluid pressure control device is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3349290U JPH03122973U (en) | 1990-03-29 | 1990-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3349290U JPH03122973U (en) | 1990-03-29 | 1990-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03122973U true JPH03122973U (en) | 1991-12-13 |
Family
ID=31537195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3349290U Pending JPH03122973U (en) | 1990-03-29 | 1990-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03122973U (en) |
-
1990
- 1990-03-29 JP JP3349290U patent/JPH03122973U/ja active Pending
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