JPS64369A - Reciprocating motion switching device for pump - Google Patents

Reciprocating motion switching device for pump

Info

Publication number
JPS64369A
JPS64369A JP62152938A JP15293887A JPS64369A JP S64369 A JPS64369 A JP S64369A JP 62152938 A JP62152938 A JP 62152938A JP 15293887 A JP15293887 A JP 15293887A JP S64369 A JPS64369 A JP S64369A
Authority
JP
Japan
Prior art keywords
operating
transfer
operating fluid
valve chamber
section
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
JP62152938A
Other languages
Japanese (ja)
Other versions
JPH0781550B2 (en
JPH01369A (en
Inventor
Minoru Murata
Kazumasa Yamada
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.)
Yamada Yuki Seizo Co Ltd
Original Assignee
Yamada Yuki Seizo 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 Yamada Yuki Seizo Co Ltd filed Critical Yamada Yuki Seizo Co Ltd
Priority to JP62152938A priority Critical patent/JPH0781550B2/en
Priority to EP92202051A priority patent/EP0509616B1/en
Priority to EP88904643A priority patent/EP0321573B1/en
Priority to DE3855779T priority patent/DE3855779T2/en
Priority to DE88904643T priority patent/DE3882949T2/en
Priority to PCT/JP1988/000512 priority patent/WO1988009440A1/en
Priority to EP92202050A priority patent/EP0508555B1/en
Priority to US07/306,454 priority patent/US5002468A/en
Priority to DE3855689T priority patent/DE3855689T2/en
Publication of JPS64369A publication Critical patent/JPS64369A/en
Publication of JPH01369A publication Critical patent/JPH01369A/en
Priority to US07/493,004 priority patent/US5002469A/en
Priority to US07/547,913 priority patent/US5120202A/en
Publication of JPH0781550B2 publication Critical patent/JPH0781550B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Reciprocating Pumps (AREA)

Abstract

PURPOSE: To reduce the number of components and facilitate the assembling by forming a spring holding a transfer operating body switching the feed and discharge of an operating fluid into a C-shape with a wire rod and rotatably coupling its upper end section with the transfer operating body and its lower end section with a receiving body respectively.
CONSTITUTION: An operating rod 13 reciprocated by the operating fluid fed and discharged from two operating fluid chambers 18, 19 in turn is inserted into a selector valve chamber 22 provided in a switching device main body 11. A switching piece 27 is operated by a transfer operating body 23 freely coupled with the operating rod 13, and the feed and discharge of the operating fluid to the operating fluid chambers 18, 19 can be switched. A spring 64 holding the transfer operating body 23 at one side or the other side of the selector valve chamber 22 is formed into a C-shape with a bent wire rod. Both end sections at the upper section of the spring are rotatably fitted to the transfer operating body 23, and the straight line section at the lower section is rotatably fitted to a receiving body 63 provided on the selector valve chamber 22.
COPYRIGHT: (C)1989,JPO&Japio
JP62152938A 1987-05-28 1987-06-19 Reciprocating motion switching device for pump Expired - Lifetime JPH0781550B2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
JP62152938A JPH0781550B2 (en) 1987-06-19 1987-06-19 Reciprocating motion switching device for pump
US07/306,454 US5002468A (en) 1987-05-28 1988-05-27 Switching device for reciprocating pumps
DE3855689T DE3855689T2 (en) 1987-05-28 1988-05-27 Floating circuit structure for pumps
DE3855779T DE3855779T2 (en) 1987-05-28 1988-05-27 Floating circuit structure for pump
DE88904643T DE3882949T2 (en) 1987-05-28 1988-05-27 FLOATING CIRCUIT STRUCTURE FOR PUMP.
PCT/JP1988/000512 WO1988009440A1 (en) 1987-05-28 1988-05-27 Reciprocation switching structure for pumps
EP92202050A EP0508555B1 (en) 1987-05-28 1988-05-27 Switching device for reciprocating pumps
EP92202051A EP0509616B1 (en) 1987-05-28 1988-05-27 Switching device for reciprocating pumps
EP88904643A EP0321573B1 (en) 1987-05-28 1988-05-27 Reciprocation switching structure for pumps
US07/493,004 US5002469A (en) 1987-05-28 1990-03-13 Switching device for reciprocating pumps
US07/547,913 US5120202A (en) 1987-05-28 1990-07-03 Switching device for reciprocating pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62152938A JPH0781550B2 (en) 1987-06-19 1987-06-19 Reciprocating motion switching device for pump

Publications (3)

Publication Number Publication Date
JPS64369A true JPS64369A (en) 1989-01-05
JPH01369A JPH01369A (en) 1989-01-05
JPH0781550B2 JPH0781550B2 (en) 1995-08-30

Family

ID=15551431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62152938A Expired - Lifetime JPH0781550B2 (en) 1987-05-28 1987-06-19 Reciprocating motion switching device for pump

Country Status (1)

Country Link
JP (1) JPH0781550B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS451787Y1 (en) * 1965-09-14 1970-01-26
JPS60256571A (en) * 1984-05-16 1985-12-18 フロージエツト・コーポレーシヨン Fluid drive pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS451787Y1 (en) * 1965-09-14 1970-01-26
JPS60256571A (en) * 1984-05-16 1985-12-18 フロージエツト・コーポレーシヨン Fluid drive pump

Also Published As

Publication number Publication date
JPH0781550B2 (en) 1995-08-30

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