JPS6326473U - - Google Patents
Info
- Publication number
- JPS6326473U JPS6326473U JP12024986U JP12024986U JPS6326473U JP S6326473 U JPS6326473 U JP S6326473U JP 12024986 U JP12024986 U JP 12024986U JP 12024986 U JP12024986 U JP 12024986U JP S6326473 U JPS6326473 U JP S6326473U
- Authority
- JP
- Japan
- Prior art keywords
- port
- hydraulic pressure
- maintains
- housing
- liquid passage
- 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
- 239000007788 liquid Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Hydraulic Control Valves For Brake Systems (AREA)
Description
第１〜３図は本考案に係るブレーキ制御装置の
一実施例を示す図であり、第１図はその断面図、
第２図はその作用を説明する一部断面図、第３図
はその作用を説明するグラフである。
１……ブレーキ制御装置、２……マスタシリン
ダ、２ａ……先端、３……リザーバタンク、５…
…減圧制御室、５ａ……一端部、５ｂ……他端部
、７……ハウジング、８，９，２１……ポート、
１０……フロントホイール用のセカンダリピスト
ン、１１……リヤホイール用のプライマリピスト
ン、１３，１４……リターンスプリング、１５…
…フロント用圧力室、１６……リヤ用圧力室、１
７……補給孔、１８……環状溝、１９，２８……
シール部材、２１……ポート、２１ａ……開口部
、２２……段差ピストン、２３……ポペツトバル
ブ、２５，２６……液通路、２６ａ……開口端、
２７……無圧室。
1 to 3 are diagrams showing an embodiment of the brake control device according to the present invention, and FIG. 1 is a sectional view thereof;
FIG. 2 is a partial cross-sectional view for explaining the effect, and FIG. 3 is a graph for explaining the effect. DESCRIPTION OF SYMBOLS 1...Brake control device, 2...Master cylinder, 2a...Tip, 3...Reservoir tank, 5...
...Decompression control chamber, 5a... One end, 5b... Other end, 7... Housing, 8, 9, 21... Port,
10... Secondary piston for front wheel, 11... Primary piston for rear wheel, 13, 14... Return spring, 15...
...Front pressure chamber, 16...Rear pressure chamber, 1
7... Supply hole, 18... Annular groove, 19, 28...
Seal member, 21...port, 21a...opening, 22...step piston, 23...poppet valve, 25, 26...liquid passage, 26a...opening end,
27...No-pressure room.
Claims (1)
トをその先端部に有するブレーキマスタシリンダ
と、ブレーキマスタシリンダの先端側および後端
側にそれぞれ位置するセカンダリピストンとプラ
イマリピストンとの間で液圧制御弁に開口するよ
うハウジングに形成された第２ポートと、前記液
圧制御弁の無圧室に通じセカンダリピストンのフ
ロント用圧力室の液圧を保持するシール部材とリ
ヤ用圧力室の液圧を保持するシール部材との間に
形成されリザーバタンクへ連通する環状溝に開口
するよう前記ハウジングに形成された液通路と、
を備え、フロントホイールシリンダ系の失陥時に
、前記セカンダリピストンのプライマリピストン
側に設けられた、リヤ用圧力室の液圧を保持する
前記シール部材が液通路の開口端を越えて前記第
１ポート側に移動し前記第２ポートと液通路の開
口端とを連通させるようにしたことを特徴とする
ブレーキ制御装置。 A brake master cylinder having a first port communicating with a front wheel cylinder at its tip, and a secondary piston and a primary piston located at the tip and rear ends of the brake master cylinder, respectively, open to a hydraulic pressure control valve. a second port formed in the housing, a seal member that communicates with the pressureless chamber of the hydraulic pressure control valve and that maintains the hydraulic pressure in the front pressure chamber of the secondary piston, and a seal member that maintains the hydraulic pressure in the rear pressure chamber. a liquid passage formed in the housing so as to open into an annular groove formed between the housing and the annular groove communicating with the reservoir tank;
and when the front wheel cylinder system fails, the sealing member that maintains the hydraulic pressure in the rear pressure chamber provided on the primary piston side of the secondary piston extends beyond the open end of the liquid passage to the first port. A brake control device characterized in that the second port is moved to the side so that the second port and the opening end of the liquid passage communicate with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12024986U JPS6326473U (en) | 1986-08-05 | 1986-08-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12024986U JPS6326473U (en) | 1986-08-05 | 1986-08-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6326473U true JPS6326473U (en) | 1988-02-20 |
Family
ID=31008389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12024986U Pending JPS6326473U (en) | 1986-08-05 | 1986-08-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6326473U (en) |
-
1986
- 1986-08-05 JP JP12024986U patent/JPS6326473U/ja active Pending
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