JPS54121378A - Hydraulic cylinder drive circuit - Google Patents
Hydraulic cylinder drive circuitInfo
- Publication number
- JPS54121378A JPS54121378A JP3020678A JP3020678A JPS54121378A JP S54121378 A JPS54121378 A JP S54121378A JP 3020678 A JP3020678 A JP 3020678A JP 3020678 A JP3020678 A JP 3020678A JP S54121378 A JPS54121378 A JP S54121378A
- Authority
- JP
- Japan
- Prior art keywords
- port
- cylinder
- hydraulic pressure
- supplied
- hydraulic cylinder
- 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.)
- Granted
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To reduce the area of a cylinder by applying hydraulic pressure only to one port of the cylinder at normal time and hydraulic pressure from a pressure accumulating tank to the other port of the cylinder when supplied hydraulic pressure is lost.
CONSTITUTION: When hydraulic fluid is normally supplied from a supply port D, a valve is operated as shown in Figure to supply hydraulic pressure only to the port 1a of a cylinder so as to retain the piston 6 at one stroke end. If hydraulic fluid is not supplied to the supply port D due to some reason, an exhaust valve 2 is switched to the position 2b and a trip valve 3 is switched to the position 3b. Thus, hydraulic pressure in a pressure accumulating tank 5 is supplied to the port 1b of the cylinder to move the piston 6 rightwardly. Limit switches 14, 14' are then opened to switch the valves 7, 8 so as to open a conduit B with the atmosphere.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3020678A JPS54121378A (en) | 1978-03-15 | 1978-03-15 | Hydraulic cylinder drive circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3020678A JPS54121378A (en) | 1978-03-15 | 1978-03-15 | Hydraulic cylinder drive circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54121378A true JPS54121378A (en) | 1979-09-20 |
JPS5653647B2 JPS5653647B2 (en) | 1981-12-21 |
Family
ID=12297252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3020678A Granted JPS54121378A (en) | 1978-03-15 | 1978-03-15 | Hydraulic cylinder drive circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54121378A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4646518A (en) * | 1983-07-15 | 1987-03-03 | Mannesmann Rexroth Gmbh | Driving unit for a feed pump |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5932526U (en) * | 1982-08-27 | 1984-02-29 | 新明和工業株式会社 | Dump truck rear door automatic opening/closing device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4914877A (en) * | 1972-06-07 | 1974-02-08 | ||
JPS4996314A (en) * | 1973-01-18 | 1974-09-12 | ||
JPS515464A (en) * | 1974-07-01 | 1976-01-17 | Kobe Steel Ltd | YUATSUSEIGYOSOCHINIOKERU SHIRINDACHURITSUICHIFUTSUKISOCHI |
JPS5279186A (en) * | 1975-12-26 | 1977-07-04 | Nippon Kousou Kk | Emergency shuttoff method of hydropneumatic driving device |
-
1978
- 1978-03-15 JP JP3020678A patent/JPS54121378A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4914877A (en) * | 1972-06-07 | 1974-02-08 | ||
JPS4996314A (en) * | 1973-01-18 | 1974-09-12 | ||
JPS515464A (en) * | 1974-07-01 | 1976-01-17 | Kobe Steel Ltd | YUATSUSEIGYOSOCHINIOKERU SHIRINDACHURITSUICHIFUTSUKISOCHI |
JPS5279186A (en) * | 1975-12-26 | 1977-07-04 | Nippon Kousou Kk | Emergency shuttoff method of hydropneumatic driving device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4646518A (en) * | 1983-07-15 | 1987-03-03 | Mannesmann Rexroth Gmbh | Driving unit for a feed pump |
Also Published As
Publication number | Publication date |
---|---|
JPS5653647B2 (en) | 1981-12-21 |
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