JPS56131809A - Oil hydraulic cylinder for locking - Google Patents
Oil hydraulic cylinder for lockingInfo
- Publication number
- JPS56131809A JPS56131809A JP3460280A JP3460280A JPS56131809A JP S56131809 A JPS56131809 A JP S56131809A JP 3460280 A JP3460280 A JP 3460280A JP 3460280 A JP3460280 A JP 3460280A JP S56131809 A JPS56131809 A JP S56131809A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- locking
- pin
- oil hydraulic
- time
- 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
- Actuator (AREA)
Abstract
PURPOSE: To carry out locking of high reliability through spring pressure by using an intermediate piston and a spring in a locking oil hydraulic cylinder used when a machine or an equipment is to be fixed at a certain place.
CONSTITUTION: When a directional control valve 15 is switched and port A is connected with a pressure side, the oil from an oil hydraulic source 16 is supplied to the port A of a tube 1, the intermediate piston 13 forces in a pin 3 against a spring 7 and stops at the stroke end 11. At this time, the compressive force of the spring 7 reaches the maximum, the pin 3 is forced into the groove or hole 6 of a matter 5 to be fixed and locking is finished. If the directional control valve 15 is brought to an intermediate position at this time, the hydraulic circuit system of the lock cylinder is put into a locked state, the intermediate piston 13 comes to a standstill inspite of the reaction of the spring 7 and this reaction acts is this time as a holding force of the pin 3.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3460280A JPS602525B2 (en) | 1980-03-18 | 1980-03-18 | Hydraulic cylinder for lock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3460280A JPS602525B2 (en) | 1980-03-18 | 1980-03-18 | Hydraulic cylinder for lock |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56131809A true JPS56131809A (en) | 1981-10-15 |
JPS602525B2 JPS602525B2 (en) | 1985-01-22 |
Family
ID=12418893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3460280A Expired JPS602525B2 (en) | 1980-03-18 | 1980-03-18 | Hydraulic cylinder for lock |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS602525B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102943801A (en) * | 2012-11-28 | 2013-02-27 | 苏州蓝王机床工具科技有限公司 | Cantilever crane locking mechanism |
CN103742482A (en) * | 2014-01-15 | 2014-04-23 | 鞍钢股份有限公司 | Crystallizer hydraulic cylinder pneumatic locking mechanism and application method thereof |
CN104454780A (en) * | 2014-10-23 | 2015-03-25 | 长沙中联重科环卫机械有限公司 | Oil cylinder with mechanical locking function and hydraulic system |
CN104454781A (en) * | 2014-11-04 | 2015-03-25 | 长沙中联消防机械有限公司 | Locking oil cylinder, oil cylinder control system and climbing fire-fighting truck or fire-fighting operation vehicle |
-
1980
- 1980-03-18 JP JP3460280A patent/JPS602525B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102943801A (en) * | 2012-11-28 | 2013-02-27 | 苏州蓝王机床工具科技有限公司 | Cantilever crane locking mechanism |
CN103742482A (en) * | 2014-01-15 | 2014-04-23 | 鞍钢股份有限公司 | Crystallizer hydraulic cylinder pneumatic locking mechanism and application method thereof |
CN104454780A (en) * | 2014-10-23 | 2015-03-25 | 长沙中联重科环卫机械有限公司 | Oil cylinder with mechanical locking function and hydraulic system |
CN104454781A (en) * | 2014-11-04 | 2015-03-25 | 长沙中联消防机械有限公司 | Locking oil cylinder, oil cylinder control system and climbing fire-fighting truck or fire-fighting operation vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPS602525B2 (en) | 1985-01-22 |
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