JPS54121378A - Hydraulic cylinder drive circuit - Google Patents

Hydraulic cylinder drive circuit

Info

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
Application number
JP3020678A
Other languages
Japanese (ja)
Other versions
JPS5653647B2 (en
Inventor
Susumu Higuchi
Hisanori Yokote
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Steel Works Ltd
Original Assignee
Japan Steel Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Japan Steel Works Ltd filed Critical Japan Steel Works Ltd
Priority to JP3020678A priority Critical patent/JPS54121378A/en
Publication of JPS54121378A publication Critical patent/JPS54121378A/en
Publication of JPS5653647B2 publication Critical patent/JPS5653647B2/ja
Granted legal-status Critical Current

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
JP3020678A 1978-03-15 1978-03-15 Hydraulic cylinder drive circuit Granted JPS54121378A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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