JPS5594003A - Selecting device for hydraulic cylinder - Google Patents
Selecting device for hydraulic cylinderInfo
- Publication number
- JPS5594003A JPS5594003A JP169079A JP169079A JPS5594003A JP S5594003 A JPS5594003 A JP S5594003A JP 169079 A JP169079 A JP 169079A JP 169079 A JP169079 A JP 169079A JP S5594003 A JPS5594003 A JP S5594003A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic cylinder
- valve
- ports
- electromagnetic
- selector valve
- 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
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To improve the performance of a hydraulic cylinder by connecting both ports of the hydraulic cylinder with a short circuit passage having a shut valve to synchronously operate an electromagnetic valve and an electromagnetic selector valve.
CONSTITUTION: When an electromagnetic selector valve 3 is actuated, the pressure oil is supplied to one of the ports of a hydraulic cylinder 2 through the selector valve 3 and the pressure oil exhausted from the other port is returned to a drain tank 17 through the selectof valve 3 while an operating lever 5 is shifted to either A or B position by the piston rod 4. In this state, the signal pressure of a oil pressure pump 1 to pilot check valves 11 and 12 is stopped by an electromagnetic valve 3 and the short circuit 8 connecting the ports of the hydraulic cylinder 2 is intercepted.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP169079A JPS5594003A (en) | 1979-01-09 | 1979-01-09 | Selecting device for hydraulic cylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP169079A JPS5594003A (en) | 1979-01-09 | 1979-01-09 | Selecting device for hydraulic cylinder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5594003A true JPS5594003A (en) | 1980-07-17 |
Family
ID=11508507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP169079A Pending JPS5594003A (en) | 1979-01-09 | 1979-01-09 | Selecting device for hydraulic cylinder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5594003A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5117950A (en) * | 1988-11-14 | 1992-06-02 | Kabushiki Kaisha Kobe Seiko Sho | Hydraulic shock absorber controller for a wheel crane |
US5251705A (en) * | 1992-03-19 | 1993-10-12 | Deere & Company | Electrical trigger for quick drop valve |
US5351601A (en) * | 1992-05-04 | 1994-10-04 | Control Concepts, Inc. | Hydraulic control system |
-
1979
- 1979-01-09 JP JP169079A patent/JPS5594003A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5117950A (en) * | 1988-11-14 | 1992-06-02 | Kabushiki Kaisha Kobe Seiko Sho | Hydraulic shock absorber controller for a wheel crane |
US5251705A (en) * | 1992-03-19 | 1993-10-12 | Deere & Company | Electrical trigger for quick drop valve |
US5351601A (en) * | 1992-05-04 | 1994-10-04 | Control Concepts, Inc. | Hydraulic control system |
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