JPS64369A - Reciprocating motion switching device for pump - Google Patents
Reciprocating motion switching device for pumpInfo
- 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
Links
Landscapes
- Reciprocating Pumps (AREA)
- Fluid-Pressure Circuits (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
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 |
PCT/JP1988/000512 WO1988009440A1 (en) | 1987-05-28 | 1988-05-27 | Reciprocation switching structure for pumps |
US07/306,454 US5002468A (en) | 1987-05-28 | 1988-05-27 | Switching device for reciprocating pumps |
DE3855779T DE3855779T2 (en) | 1987-05-28 | 1988-05-27 | Floating circuit structure for pump |
DE3855689T DE3855689T2 (en) | 1987-05-28 | 1988-05-27 | Floating circuit structure for pumps |
EP92202051A EP0509616B1 (en) | 1987-05-28 | 1988-05-27 | Switching device for reciprocating pumps |
DE88904643T DE3882949T2 (en) | 1987-05-28 | 1988-05-27 | FLOATING CIRCUIT STRUCTURE FOR PUMP. |
EP88904643A EP0321573B1 (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 |
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)
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 |
-
1987
- 1987-06-19 JP JP62152938A patent/JPH0781550B2/en not_active Expired - Lifetime
Patent Citations (2)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |