JPS6386404U - - Google Patents
Info
- Publication number
- JPS6386404U JPS6386404U JP18084786U JP18084786U JPS6386404U JP S6386404 U JPS6386404 U JP S6386404U JP 18084786 U JP18084786 U JP 18084786U JP 18084786 U JP18084786 U JP 18084786U JP S6386404 U JPS6386404 U JP S6386404U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- hydraulic actuator
- valve
- hydraulic
- tank
- 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
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fluid-Pressure Circuits (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
第１図は本考案の実施例を示す油圧式ジヤツキ
の駆動回路図、第２図は従来例を示油圧式ジヤツ
キの駆動回路図である。
１…ジヤツキ、３…油圧ポンプ、６…タンク、
７…パイロツト回路、８…チエツク弁、１０…流
量制御弁、Ａ，Ｂ…切換弁。
FIG. 1 is a drive circuit diagram of a hydraulic jack showing an embodiment of the present invention, and FIG. 2 is a drive circuit diagram of a hydraulic jack showing a conventional example. 1...Jacket, 3...Hydraulic pump, 6...Tank,
7...Pilot circuit, 8...Check valve, 10...Flow control valve, A, B...Switching valve.
Claims (1)
弁Ａを介して選択的に接続し、油圧アクチユエー
タからタンクへの作動油流出を信号圧力入力時に
のみ許容するパイロツト回路付きのチエツク弁と
、この流出量を制御する流量制御弁とを油圧アク
チユエータと切換弁Ａとの間に直列に介装すると
ともに、前記パイロツト回路への信号圧力の入力
と解放を行なう切換弁Ｂを前記切換弁Ａから独立
して備えたことを特徴とする油圧アクチユエータ
の駆動回路。 A check valve with a pilot circuit that selectively connects a hydraulic source and a tank to a hydraulic actuator via a switching valve A, and allows hydraulic oil to flow from the hydraulic actuator to the tank only when a signal pressure is input, and a check valve that controls the flow amount. A flow rate control valve to be controlled is interposed in series between the hydraulic actuator and the switching valve A, and a switching valve B is provided independently from the switching valve A for inputting and releasing signal pressure to the pilot circuit. A hydraulic actuator drive circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18084786U JPS6386404U (en) | 1986-11-25 | 1986-11-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18084786U JPS6386404U (en) | 1986-11-25 | 1986-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6386404U true JPS6386404U (en) | 1988-06-06 |
Family
ID=31125178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18084786U Pending JPS6386404U (en) | 1986-11-25 | 1986-11-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6386404U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009138938A (en) * | 2007-12-10 | 2009-06-25 | Volvo Construction Equipment Ab | Hydraulic circuit having external pilot pressure operated holding valve |
| WO2013114980A1 (en) * | 2012-02-03 | 2013-08-08 | カヤバ工業株式会社 | Fluid pressure control device |
| JP2016016982A (en) * | 2014-07-11 | 2016-02-01 | 太平電業株式会社 | Hydraulic circuit structure for jack device |
-
1986
- 1986-11-25 JP JP18084786U patent/JPS6386404U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009138938A (en) * | 2007-12-10 | 2009-06-25 | Volvo Construction Equipment Ab | Hydraulic circuit having external pilot pressure operated holding valve |
| WO2013114980A1 (en) * | 2012-02-03 | 2013-08-08 | カヤバ工業株式会社 | Fluid pressure control device |
| US9683587B2 (en) | 2012-02-03 | 2017-06-20 | Kyb Corporation | Fluid pressure control device |
| JP2016016982A (en) * | 2014-07-11 | 2016-02-01 | 太平電業株式会社 | Hydraulic circuit structure for jack device |
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