JPS55119263A - Fluid shut-off device - Google Patents

Fluid shut-off device

Info

Publication number
JPS55119263A
JPS55119263A JP2533979A JP2533979A JPS55119263A JP S55119263 A JPS55119263 A JP S55119263A JP 2533979 A JP2533979 A JP 2533979A JP 2533979 A JP2533979 A JP 2533979A JP S55119263 A JPS55119263 A JP S55119263A
Authority
JP
Japan
Prior art keywords
valve
movable
magnetic member
spring
movable member
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
JP2533979A
Other languages
Japanese (ja)
Other versions
JPS6225906B2 (en
Inventor
Kunio Shimizu
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP2533979A priority Critical patent/JPS55119263A/en
Publication of JPS55119263A publication Critical patent/JPS55119263A/en
Publication of JPS6225906B2 publication Critical patent/JPS6225906B2/ja
Granted legal-status Critical Current

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  • Safety Valves (AREA)

Abstract

PURPOSE: To simplify constitution and enhance reliability, by providing a movable magnetic member interlocked with a valve, a spring for urging the movable magnetic member in a direction to open the valve, a stationary magnetic member which is magnetically joined with the movable member so as to urge the valve toward its closed position.
CONSTITUTION: In a standing state or open state, the valve 1 of a fluid shut-off device is pulled to a rear position together with a movable member 2 by a spring 3 and kept stable in said position, which is remote from a valve seat 1a because the resilient force of the spring 3 exceeds a magnetic force acting between the movable member 2 and a stationary magnetic member 4. When an electrical driving current is supplied to an exciter 5 at an earthquake or the like, the valve 1 is moved leftward together with the movable member 2. When the valve is displaced into a region d2 where the magnetic force exceeds the resilient force, the valve is quickly attracted onto the valve seat 1a, namely, closed. The closure of the valve is maintained by the magnetic member 4.
COPYRIGHT: (C)1980,JPO&Japio
JP2533979A 1979-03-05 1979-03-05 Fluid shut-off device Granted JPS55119263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2533979A JPS55119263A (en) 1979-03-05 1979-03-05 Fluid shut-off device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2533979A JPS55119263A (en) 1979-03-05 1979-03-05 Fluid shut-off device

Publications (2)

Publication Number Publication Date
JPS55119263A true JPS55119263A (en) 1980-09-12
JPS6225906B2 JPS6225906B2 (en) 1987-06-05

Family

ID=12163142

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2533979A Granted JPS55119263A (en) 1979-03-05 1979-03-05 Fluid shut-off device

Country Status (1)

Country Link
JP (1) JPS55119263A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002340021A (en) * 2001-05-22 2002-11-27 Yanmar Agricult Equip Co Ltd Rice planting machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5235625U (en) * 1975-09-05 1977-03-14
JPS534212A (en) * 1976-07-02 1978-01-14 Miyata Ind Automatic emergency closure means for highhpressure gas feed valves

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5235625U (en) * 1975-09-05 1977-03-14
JPS534212A (en) * 1976-07-02 1978-01-14 Miyata Ind Automatic emergency closure means for highhpressure gas feed valves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002340021A (en) * 2001-05-22 2002-11-27 Yanmar Agricult Equip Co Ltd Rice planting machine

Also Published As

Publication number Publication date
JPS6225906B2 (en) 1987-06-05

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