JPS5820705U - counterbalance valve - Google Patents
counterbalance valveInfo
- Publication number
- JPS5820705U JPS5820705U JP11494581U JP11494581U JPS5820705U JP S5820705 U JPS5820705 U JP S5820705U JP 11494581 U JP11494581 U JP 11494581U JP 11494581 U JP11494581 U JP 11494581U JP S5820705 U JPS5820705 U JP S5820705U
- Authority
- JP
- Japan
- Prior art keywords
- port
- supply
- brake
- actuator
- discharge
- 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
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
−第１図はこの考案のカウンタバランス弁の一実施例を
、それが組込まれる圧力流体回路と共に示す断面図であ
る。
１・・・・・・弁本体、２・・・・・・スプール、３・
・・・・・ネガティブブレーキ、４・・・・・・アクチ
ュエータ、５，６・・・・・・アクチュエータポート、
７・・・・・・方向切換弁、８゜９・・・・・・給排ポ
ート、１０・・・・・・ブレーキポート、１１・・・・
・・タンク、１２・・・・・・タンクポート、２０゜２
１・・・・・・ばね、３９・・・・・・第１切換部、３
９・・・・・・第２切換部。- FIG. 1 is a sectional view showing an embodiment of the counterbalance valve of this invention together with a pressure fluid circuit in which it is incorporated. 1... Valve body, 2... Spool, 3...
...Negative brake, 4...Actuator, 5,6...Actuator port,
7... Directional switching valve, 8゜9... Supply/discharge port, 10... Brake port, 11...
... Tank, 12 ... Tank port, 20゜2
1... Spring, 39... First switching section, 3
9...Second switching section.
Claims (1)
排ポート、アクチュエータのネガティブブレーキを接続
するブレーキポート及びタンクポートを夫々形成した弁
本体と、長手方向両側から対向して作用する各給排ポニ
トの圧力により両側のばねに抗して長手方向に摺動しう
るよう上記弁本体に内蔵したスプールとから成り、この
スプールは、アクチュエータボートと給排ポートを遮断
する中立位置においてブレーキポートとタンクポートを
連通させ且つ給排ポートからの圧力により摺動してアク
チュエータポートと給排ポートを連通させる作動位置に
おいてブレーキポートとタンクポートを遮断する第１切
換部と、該第１切換部がブレーキポートとタンクポート
を遮断するときに給排用ポートのいずれか一方とブレー
キポートを連通させる第２切換部とを備えていることを
特、徴とするカウンタバランス弁。The valve body has an actuator port, two supply/discharge ports that connect the directional control valve, a brake port that connects the negative brake of the actuator, and a tank port, and each supply/discharge port that faces each other from both sides in the longitudinal direction. It consists of a spool built into the valve body that can be slid in the longitudinal direction against springs on both sides due to pressure, and this spool connects the brake port and tank port in a neutral position that blocks the actuator boat and the supply/discharge port. a first switching part that cuts off the brake port and the tank port in an operating position where the actuator port and the supply/discharge port are communicated by sliding due to pressure from the supply/discharge port; A counterbalance valve characterized by comprising a second switching part that communicates one of the supply/discharge ports with the brake port when the port is shut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11494581U JPS5820705U (en) | 1981-07-31 | 1981-07-31 | counterbalance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11494581U JPS5820705U (en) | 1981-07-31 | 1981-07-31 | counterbalance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5820705U true JPS5820705U (en) | 1983-02-08 |
Family
ID=29909223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11494581U Pending JPS5820705U (en) | 1981-07-31 | 1981-07-31 | counterbalance valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5820705U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62276135A (en) * | 1986-05-22 | 1987-12-01 | 田中 忠徳 | Flash toilet bowl with smell sucking hole |
| JPS6355228A (en) * | 1986-08-26 | 1988-03-09 | 遠菱アルミホイ−ル株式会社 | Deodorizing apparatus for flash toilet |
| WO1990010757A1 (en) * | 1989-03-16 | 1990-09-20 | Kabushiki Kaisha Komatsu Seisakusho | Parking brake circuit of hydraulically driven vehicle |
| JP2017155763A (en) * | 2016-02-29 | 2017-09-07 | 日立建機株式会社 | Hydraulic motor control device |
-
1981
- 1981-07-31 JP JP11494581U patent/JPS5820705U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62276135A (en) * | 1986-05-22 | 1987-12-01 | 田中 忠徳 | Flash toilet bowl with smell sucking hole |
| JPS6355228A (en) * | 1986-08-26 | 1988-03-09 | 遠菱アルミホイ−ル株式会社 | Deodorizing apparatus for flash toilet |
| WO1990010757A1 (en) * | 1989-03-16 | 1990-09-20 | Kabushiki Kaisha Komatsu Seisakusho | Parking brake circuit of hydraulically driven vehicle |
| JP2017155763A (en) * | 2016-02-29 | 2017-09-07 | 日立建機株式会社 | Hydraulic motor control device |
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