JPH03107602A - Actuator for fluid control device - Google Patents

Actuator for fluid control device

Info

Publication number
JPH03107602A
JPH03107602A JP24474189A JP24474189A JPH03107602A JP H03107602 A JPH03107602 A JP H03107602A JP 24474189 A JP24474189 A JP 24474189A JP 24474189 A JP24474189 A JP 24474189A JP H03107602 A JPH03107602 A JP H03107602A
Authority
JP
Japan
Prior art keywords
piston
stem
abuts
lever arm
thrust force
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
JP24474189A
Other languages
Japanese (ja)
Other versions
JP3239123B2 (en
Inventor
Shigeru Itoi
Original Assignee
Kiyohara Masako
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 Kiyohara Masako filed Critical Kiyohara Masako
Priority to JP24474189A priority Critical patent/JP3239123B2/en
Publication of JPH03107602A publication Critical patent/JPH03107602A/en
Application granted granted Critical
Publication of JP3239123B2 publication Critical patent/JP3239123B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To obtain compactness of a device by providing a lever arm, whose one end abuts against the second piston of a tandem piston provided for adding each thrust force through mounting each piston on a stem and another end abuts against the stem, and by transmitting the sum of the thrust force of each piston to the stem with the force intensified.
CONSTITUTION: A stem 3 penetrates a cylinder case 5 and has axial flexibility due to elastic bodies 6 and a spring seat 12. A first piston 7 and a second piston 8 are mounted airtightly on the stem 3 so that a sleeve 7a of the first piston 7 abuts against the second piston 8. One end of a lever arm 9 arranged radially abuts against the second piston 3 by means of a lever support axis 10, and another end of the lever arm 9 abuts against a lever arm engage collar 16 mounted on the stem 3 via a support roller 11. Consequently, the thrust force on the first piston 7 and that on the second piston 8 are added and transmitted to the stem 3 with its magnitude intensified by means of the lever arm 9. Therefore, it ia possible to obtain large thrust force without enlargement of the actuator, and also to get compactness of the device.
COPYRIGHT: (C)1991,JPO&Japio
JP24474189A 1989-09-20 1989-09-20 Actuator for fluid control device Expired - Lifetime JP3239123B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24474189A JP3239123B2 (en) 1989-09-20 1989-09-20 Actuator for fluid control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24474189A JP3239123B2 (en) 1989-09-20 1989-09-20 Actuator for fluid control device

Publications (2)

Publication Number Publication Date
JPH03107602A true JPH03107602A (en) 1991-05-08
JP3239123B2 JP3239123B2 (en) 2001-12-17

Family

ID=17123203

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24474189A Expired - Lifetime JP3239123B2 (en) 1989-09-20 1989-09-20 Actuator for fluid control device

Country Status (1)

Country Link
JP (1) JP3239123B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002053945A1 (en) * 2000-12-28 2002-07-11 Toyota Jidosha Kabushiki Kaisha Toroidal continuously variable transmission
WO2014010412A1 (en) * 2012-07-13 2014-01-16 株式会社フジキン Fluid controller actuator
WO2020017449A1 (en) * 2018-07-17 2020-01-23 株式会社ショ-ワ Valve device
CN111051754A (en) * 2017-09-28 2020-04-21 株式会社富士金 Actuator, valve, and fluid control device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002053945A1 (en) * 2000-12-28 2002-07-11 Toyota Jidosha Kabushiki Kaisha Toroidal continuously variable transmission
WO2014010412A1 (en) * 2012-07-13 2014-01-16 株式会社フジキン Fluid controller actuator
JP2014020398A (en) * 2012-07-13 2014-02-03 Fujikin Inc Actuator for fluid controller
KR20150014993A (en) * 2012-07-13 2015-02-09 가부시키가이샤 후지킨 Fluid controller actuator
US9416893B2 (en) 2012-07-13 2016-08-16 Fujikin Incorporated Fluid controller actuator
CN111051754A (en) * 2017-09-28 2020-04-21 株式会社富士金 Actuator, valve, and fluid control device
WO2020017449A1 (en) * 2018-07-17 2020-01-23 株式会社ショ-ワ Valve device
WO2020016917A1 (en) * 2018-07-17 2020-01-23 株式会社ショ-ワ Valve device

Also Published As

Publication number Publication date
JP3239123B2 (en) 2001-12-17

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