JPS5642704A - Controller in hydraulic circuit - Google Patents

Controller in hydraulic circuit

Info

Publication number
JPS5642704A
JPS5642704A JP11735779A JP11735779A JPS5642704A JP S5642704 A JPS5642704 A JP S5642704A JP 11735779 A JP11735779 A JP 11735779A JP 11735779 A JP11735779 A JP 11735779A JP S5642704 A JPS5642704 A JP S5642704A
Authority
JP
Japan
Prior art keywords
electromagnetic valve
actuator
output
signals
electromagnetic
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
JP11735779A
Other languages
Japanese (ja)
Other versions
JPS591884B2 (en
Inventor
Hiroshi Watanabe
Kazuo Honma
Yoshio Nakajima
Eiki Izumi
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP54117357A priority Critical patent/JPS591884B2/en
Publication of JPS5642704A publication Critical patent/JPS5642704A/en
Publication of JPS591884B2 publication Critical patent/JPS591884B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To prevent an actuator from sudden action in such a way that a dead time generator to output the signals to open the electromagnetic valves with delay for a settled time when an actuator is changed over is connected to each electromagnetic valve.
CONSTITUTION: A dead time generator 20 to output the signals to open electromagnetic valves 6a, 7a with delay for a settled time when an actuator is changed over is connected to the electromagnetic valves 6a, 7a. Thus, for example, in the condition that the electromagnetic valve 6a is opened and the electromagnetic valve 7a is closed, when a control lever 17 is controlled, closing signals for the electromagnetic valve 6a are output at the same time with the control of the control lever 17, and opening signals for the electromagnetic valve 7a are output after the lapse of a settled time. In consequence, since after the electromagnetic valve 6a is closed, the electromagnetic valve 7a is opened, actuators can be eliminated the possibility of being connected together, so that the actuator can be prevented from sudden action.
COPYRIGHT: (C)1981,JPO&Japio
JP54117357A 1979-09-14 1979-09-14 Hydraulic circuit control device Expired JPS591884B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54117357A JPS591884B2 (en) 1979-09-14 1979-09-14 Hydraulic circuit control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54117357A JPS591884B2 (en) 1979-09-14 1979-09-14 Hydraulic circuit control device

Publications (2)

Publication Number Publication Date
JPS5642704A true JPS5642704A (en) 1981-04-21
JPS591884B2 JPS591884B2 (en) 1984-01-14

Family

ID=14709675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54117357A Expired JPS591884B2 (en) 1979-09-14 1979-09-14 Hydraulic circuit control device

Country Status (1)

Country Link
JP (1) JPS591884B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821005A (en) * 1981-07-27 1983-02-07 Hitachi Constr Mach Co Ltd Controller for hydraulic circuit
JPS60501171A (en) * 1983-03-28 1985-07-25 レキサ　コ−ポレ−シヨン Control valves and hydraulic equipment using them
JP2011241952A (en) * 2010-05-20 2011-12-01 Komatsu Ltd Control device for electric actuator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821005A (en) * 1981-07-27 1983-02-07 Hitachi Constr Mach Co Ltd Controller for hydraulic circuit
JPS60501171A (en) * 1983-03-28 1985-07-25 レキサ　コ−ポレ−シヨン Control valves and hydraulic equipment using them
JPH0445711B2 (en) * 1983-03-28 1992-07-27 Rekisa Corp
JP2011241952A (en) * 2010-05-20 2011-12-01 Komatsu Ltd Control device for electric actuator
US9617713B2 (en) 2010-05-20 2017-04-11 Komatsu Ltd. Control device for an electric actuator

Also Published As

Publication number Publication date
JPS591884B2 (en) 1984-01-14

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