JPS6429064U - - Google Patents
Info
- Publication number
- JPS6429064U JPS6429064U JP12479287U JP12479287U JPS6429064U JP S6429064 U JPS6429064 U JP S6429064U JP 12479287 U JP12479287 U JP 12479287U JP 12479287 U JP12479287 U JP 12479287U JP S6429064 U JPS6429064 U JP S6429064U
- Authority
- JP
- Japan
- Prior art keywords
- brake
- pressure
- release valve
- brake release
- servo pump
- 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
- 238000009825 accumulation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Braking Systems And Boosters (AREA)
Description
第１図は本考案一実施例の構成説明図、第２図
は従来の車両のブレーキ操作装置の構成説明図で
ある。
１はサーボポンプ、４はブレーキシリンダ、６
はブレーキ操作バルブ、９は第１のブレーキ解除
弁、１６は第２のブレーキ解除弁、１９はアキユ
ームエータ。
FIG. 1 is an explanatory diagram of the configuration of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of the configuration of a conventional vehicle brake operating device. 1 is the servo pump, 4 is the brake cylinder, 6
1 is a brake operating valve, 9 is a first brake release valve, 16 is a second brake release valve, and 19 is an accumulator.
Claims (1)
ダ４に給排するブレーキ操作バルブ６と、サーボ
ポンプ１からの吐出圧が設定値以上に達するとこ
の吐出圧をパイロツト圧として切換作動して前記
ブレーキシリンダ４への供給圧をブロツクする第
１のブレーキ解除弁９と、サーボポンプ１の吐出
圧を蓄圧するアキユームエータ１９と、切換作動
によりアキユームエータ１９の圧油を第１のブレ
ーキ解除弁９にパイロツト圧として供給すると共
にアキユームエータ１９の圧油をブレーキシリン
ダ４に供給する第２のブレーキ解除弁１６とを備
えたことを特徴とする車両のブレーキ操作装置。 A brake operation valve 6 supplies and discharges oil discharged from the servo pump 1 to the brake cylinder 4, and when the discharge pressure from the servo pump 1 reaches a set value or more, the discharge pressure is operated as a pilot pressure to operate the brake cylinder 4. The first brake release valve 9 blocks the supply pressure to the first brake release valve 9, and the accumulator 19 accumulates the discharge pressure of the servo pump 1. Pressure oil in the accumulation evaporator 19 is supplied as pilot pressure to the first brake release valve 9 by switching operation. and a second brake release valve 16 for supplying pressurized oil from the accumulator 19 to the brake cylinder 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12479287U JPS6429064U (en) | 1987-08-18 | 1987-08-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12479287U JPS6429064U (en) | 1987-08-18 | 1987-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6429064U true JPS6429064U (en) | 1989-02-21 |
Family
ID=31374828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12479287U Pending JPS6429064U (en) | 1987-08-18 | 1987-08-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6429064U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002020320A1 (en) * | 2000-09-08 | 2002-03-14 | Hitachi Construction Machinery Co., Ltd | Parking brake device of working vehicle |
| KR20160133696A (en) * | 2015-05-13 | 2016-11-23 | 두산인프라코어 주식회사 | Transmission system |
-
1987
- 1987-08-18 JP JP12479287U patent/JPS6429064U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002020320A1 (en) * | 2000-09-08 | 2002-03-14 | Hitachi Construction Machinery Co., Ltd | Parking brake device of working vehicle |
| US6802571B2 (en) | 2000-09-08 | 2004-10-12 | Hitachi Construction Machinery Co., Ltd. | Parking brake unit for work vehicle |
| KR20160133696A (en) * | 2015-05-13 | 2016-11-23 | 두산인프라코어 주식회사 | Transmission system |
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