JPS5482573A - Control circuit of actuator - Google Patents

Control circuit of actuator

Info

Publication number
JPS5482573A
JPS5482573A JP15033177A JP15033177A JPS5482573A JP S5482573 A JPS5482573 A JP S5482573A JP 15033177 A JP15033177 A JP 15033177A JP 15033177 A JP15033177 A JP 15033177A JP S5482573 A JPS5482573 A JP S5482573A
Authority
JP
Japan
Prior art keywords
lever
rises
check valves
motor
revolution
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
JP15033177A
Other languages
Japanese (ja)
Other versions
JPS5740921B2 (en
Inventor
Satoru Torii
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP15033177A priority Critical patent/JPS5482573A/en
Publication of JPS5482573A publication Critical patent/JPS5482573A/en
Publication of JPS5740921B2 publication Critical patent/JPS5740921B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To simply control the direction, speed, etc. of an actuator by operating a lever at a time and to easily operate a crane in a turning flowing condition, by combining check valves and variable reducing valves.
CONSTITUTION: When tilting a lever 12 in the A direction the secondary pressure of a reducing valve 8 rises in response to the operating angle, pushing force to check valves 42, 44 rises and pressure discharged from a port 22 rises in response to the rise of pushing force. Thus, the speed of the revolution and acceleration of a motor 3 can freely be controlled by operating the lever. When returning the lever 12 to a neutral location, check valves 41, 42, 43, 44 become free, the motor 3 continuously rotates by the inertia force of a body of revolution and so-called flowing operation in the turning of a crane can be performed. When tilting the lever 12 in the B direction,the secondary pressure of a reducing valve 11 rises, the check valves 41, 43 are pushed, fluid returned from the motor 3 is blocked and said revolution stops.
COPYRIGHT: (C)1979,JPO&Japio
JP15033177A 1977-12-13 1977-12-13 Control circuit of actuator Granted JPS5482573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15033177A JPS5482573A (en) 1977-12-13 1977-12-13 Control circuit of actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15033177A JPS5482573A (en) 1977-12-13 1977-12-13 Control circuit of actuator

Publications (2)

Publication Number Publication Date
JPS5482573A true JPS5482573A (en) 1979-06-30
JPS5740921B2 JPS5740921B2 (en) 1982-08-31

Family

ID=15494668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15033177A Granted JPS5482573A (en) 1977-12-13 1977-12-13 Control circuit of actuator

Country Status (1)

Country Link
JP (1) JPS5482573A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751003A (en) * 1980-09-10 1982-03-25 Kobe Steel Ltd Control circuit for actuator
JPS63199971A (en) * 1987-02-15 1988-08-18 Tabai Esupetsuku Kk Directional switching valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3078947B2 (en) * 1993-03-30 2000-08-21 株式会社神戸製鋼所 Drive control device for fluid pressure actuator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4872574A (en) * 1971-09-23 1973-09-29
JPS497677A (en) * 1972-05-27 1974-01-23

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4872574A (en) * 1971-09-23 1973-09-29
JPS497677A (en) * 1972-05-27 1974-01-23

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751003A (en) * 1980-09-10 1982-03-25 Kobe Steel Ltd Control circuit for actuator
JPS63199971A (en) * 1987-02-15 1988-08-18 Tabai Esupetsuku Kk Directional switching valve

Also Published As

Publication number Publication date
JPS5740921B2 (en) 1982-08-31

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