JPS5797903A - Double-acting cylinder - Google Patents
Double-acting cylinderInfo
- Publication number
- JPS5797903A JPS5797903A JP17232080A JP17232080A JPS5797903A JP S5797903 A JPS5797903 A JP S5797903A JP 17232080 A JP17232080 A JP 17232080A JP 17232080 A JP17232080 A JP 17232080A JP S5797903 A JPS5797903 A JP S5797903A
- Authority
- JP
- Japan
- Prior art keywords
- oil flow
- valve
- oil
- cylinder
- chamber
- 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
Abstract
PURPOSE: To enable the sequential action of a double-acting three-stage cylinder itself, by providing valves in the cylinder to change over fluid passages at the greatest elongation of the first and the second stage cylinder units.
CONSTITUTION: Valves 22, 23 are provided at the end 7 of a hollow member 5 to control sequential action. The valve 22 is always energized by a spring 24 to disconnect oil chambers 25, 26 from each other but functions also as a check valve which allows the oil flow from the chamber 26 to the other 25 but stops the reverse oil flow. At the extreme end of elongation of a first cylinder unit 4, the end 22a of the valve 22 is engaged with a piston 2 to allow the oil flow from the oil chamber 25 to the other 26. The valve 23 has a check valve mechanism which allows the oil flow from an oil chamber 33 to another 32 but stops the reverse oil flow. At the extreme end of contraction of a second cylinder unit 10, the end 23a of the valve 23 is engaged with the piston 8 of the second cylinder unit to allow the oil flow from the oil chamber 32 to the other 33.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17232080A JPS5797903A (en) | 1980-12-06 | 1980-12-06 | Double-acting cylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17232080A JPS5797903A (en) | 1980-12-06 | 1980-12-06 | Double-acting cylinder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5797903A true JPS5797903A (en) | 1982-06-17 |
JPH028162B2 JPH028162B2 (en) | 1990-02-22 |
Family
ID=15939721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17232080A Granted JPS5797903A (en) | 1980-12-06 | 1980-12-06 | Double-acting cylinder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5797903A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3823225A1 (en) * | 1988-07-08 | 1990-01-11 | Montan Hydraulik Gmbh & Co Kg | Multi-stage hydraulic telescopic cylinder with positive control for the extension and retraction sequence of the telescopic members |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4831185A (en) * | 1971-08-26 | 1973-04-24 | ||
JPS4841194A (en) * | 1971-09-28 | 1973-06-16 |
-
1980
- 1980-12-06 JP JP17232080A patent/JPS5797903A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4831185A (en) * | 1971-08-26 | 1973-04-24 | ||
JPS4841194A (en) * | 1971-09-28 | 1973-06-16 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3823225A1 (en) * | 1988-07-08 | 1990-01-11 | Montan Hydraulik Gmbh & Co Kg | Multi-stage hydraulic telescopic cylinder with positive control for the extension and retraction sequence of the telescopic members |
Also Published As
Publication number | Publication date |
---|---|
JPH028162B2 (en) | 1990-02-22 |
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