JPS56116937A - Gas spring equipped with locking mechanism - Google Patents
Gas spring equipped with locking mechanismInfo
- Publication number
- JPS56116937A JPS56116937A JP2006480A JP2006480A JPS56116937A JP S56116937 A JPS56116937 A JP S56116937A JP 2006480 A JP2006480 A JP 2006480A JP 2006480 A JP2006480 A JP 2006480A JP S56116937 A JPS56116937 A JP S56116937A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- passage
- chamber
- upper chamber
- lock valve
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/56—Means for adjusting the length of, or for locking, the spring or damper, e.g. at the end of the stroke
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
PURPOSE:To perfectly lock the movement of a piston even if a force is applied to the piston in its locked state by perfectly shutting-off a pressure applying means and isolating the upper and lower chambers of the piston by means of a lock valve and a check valve. CONSTITUTION:When a lock valve 36 is moved in D direction and a passage 35 is opened, a piston 25 is moved in C direction and a check valve 42 operates, followed by opening of a passage 41 and oil flows into the lower chamber 31 from an auxiliary chamber 32, and into the auxiliary chamber 32 from a passage 29, and into the passage 29 from the upper chamber 30 respectively. Accordingly, a free piston 28 moves in C direction, and a gas chamber 33 is expanded. When the operation of the lock valve 36 is stopped, the lock valve is shifted in the direction of arrow C by the oil pressure in the upper chamber 30, and the passage 35 is closed. In this state, even if the force which tends to move the piston 25 in D direction is applied, and the pressure in the upper chamber 30 becomes high, the shift of the piston is suppressed, since the passages 35 and 39 are in closed, state and the oil in the upper chamber 30 can not 60 discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006480A JPS56116937A (en) | 1980-02-20 | 1980-02-20 | Gas spring equipped with locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006480A JPS56116937A (en) | 1980-02-20 | 1980-02-20 | Gas spring equipped with locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56116937A true JPS56116937A (en) | 1981-09-14 |
Family
ID=12016653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006480A Pending JPS56116937A (en) | 1980-02-20 | 1980-02-20 | Gas spring equipped with locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56116937A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH037543U (en) * | 1989-06-12 | 1991-01-24 | ||
| JPH0522655Y2 (en) * | 1987-10-30 | 1993-06-10 | ||
| CN108930749A (en) * | 2018-07-04 | 2018-12-04 | 深圳鑫安满金融服务有限公司 | A kind of overload self-locking device for gas spring |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52154972A (en) * | 1976-06-19 | 1977-12-23 | Tokico Ltd | Gas spring |
| JPS559921B2 (en) * | 1973-02-09 | 1980-03-13 |
-
1980
- 1980-02-20 JP JP2006480A patent/JPS56116937A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS559921B2 (en) * | 1973-02-09 | 1980-03-13 | ||
| JPS52154972A (en) * | 1976-06-19 | 1977-12-23 | Tokico Ltd | Gas spring |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0522655Y2 (en) * | 1987-10-30 | 1993-06-10 | ||
| JPH037543U (en) * | 1989-06-12 | 1991-01-24 | ||
| CN108930749A (en) * | 2018-07-04 | 2018-12-04 | 深圳鑫安满金融服务有限公司 | A kind of overload self-locking device for gas spring |
| CN108930749B (en) * | 2018-07-04 | 2020-05-05 | 安徽英杰精工机械有限公司 | Overload self-locking device for gas spring |
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