JPS5546041A - Position set maintaining device of piston - Google Patents

Position set maintaining device of piston

Info

Publication number
JPS5546041A
JPS5546041A JP11906878A JP11906878A JPS5546041A JP S5546041 A JPS5546041 A JP S5546041A JP 11906878 A JP11906878 A JP 11906878A JP 11906878 A JP11906878 A JP 11906878A JP S5546041 A JPS5546041 A JP S5546041A
Authority
JP
Japan
Prior art keywords
oil
valve
piston
position set
permit
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
JP11906878A
Other languages
Japanese (ja)
Other versions
JPS5810562B2 (en
Inventor
Tomoyuki Nakatsuka
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 Ltd
Hitachi Kizai Inc
Original Assignee
Hitachi Ltd
Hitachi Kizai Inc
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 Ltd, Hitachi Kizai Inc filed Critical Hitachi Ltd
Priority to JP11906878A priority Critical patent/JPS5810562B2/en
Publication of JPS5546041A publication Critical patent/JPS5546041A/en
Publication of JPS5810562B2 publication Critical patent/JPS5810562B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To provide a position set maintaining device to permit for controlling full range of the operation of a device to be driven and for turning on or off.
CONSTITUTION: For example, in operating to open a valve 2, magnet valves 22 and 23 are switched as shown by diagram (white: open, black: close.), turning a handle 32, sliding a clutch 27 against a frame 41 to turn a pinion 26, causting to depress a valve rod 20 of a pilit valve P by means of a rack 19. Ports a, b, f are, then, opened to permit an oil supplied from a oil supply tube 24 to push up a piston 7. In closing a port b by a control rand 20b, oil feed to the cylinder 8 is discontinued, causing the valve 2 to maintain at an intermediate opening. Besides, in opening under the connected condition, oil stream i, c is opened, closing oil stream j, allowing to apply oil pressure to the top of a piston 20d.
COPYRIGHT: (C)1980,JPO&Japio
JP11906878A 1978-09-29 1978-09-29 Piston position setting maintenance device Expired JPS5810562B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11906878A JPS5810562B2 (en) 1978-09-29 1978-09-29 Piston position setting maintenance device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11906878A JPS5810562B2 (en) 1978-09-29 1978-09-29 Piston position setting maintenance device

Publications (2)

Publication Number Publication Date
JPS5546041A true JPS5546041A (en) 1980-03-31
JPS5810562B2 JPS5810562B2 (en) 1983-02-26

Family

ID=14752089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11906878A Expired JPS5810562B2 (en) 1978-09-29 1978-09-29 Piston position setting maintenance device

Country Status (1)

Country Link
JP (1) JPS5810562B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017213160A1 (en) * 2016-06-10 2017-12-14 株式会社荏原エリオット Main stop valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017213160A1 (en) * 2016-06-10 2017-12-14 株式会社荏原エリオット Main stop valve

Also Published As

Publication number Publication date
JPS5810562B2 (en) 1983-02-26

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