JPS5776339A - Hydraulic shock absorber - Google Patents
Hydraulic shock absorberInfo
- Publication number
- JPS5776339A JPS5776339A JP15249780A JP15249780A JPS5776339A JP S5776339 A JPS5776339 A JP S5776339A JP 15249780 A JP15249780 A JP 15249780A JP 15249780 A JP15249780 A JP 15249780A JP S5776339 A JPS5776339 A JP S5776339A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- flow path
- valve
- hole
- expand
- 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
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
PURPOSE:To expand the adjustment range for damping force characteristic by providing a relatively rotatable sleeve and a control valve in a pipeline connecting an oil sump for the hydraulic oil to an oil chamber and arranging the pipeline to expand and contract a flow path in accordance with the connection area between an orifice and a control hole which are respectively mounted on the sleeve and the valve. CONSTITUTION:A valve device 12 is mounted between an oil sump 7 and an oil chamber 11 through connecting pathes 28, 8, 3. The device 12 includes a control valve 30 slidably mounted on a sleeve 37. The valve 30 has a control hole 35. The peripheral wall of the sleeve 37 are provided with orifices 38A, 38B... opposed to the hole 35, so that the orifice 38 and the hole 35 form a throttle flow path 51. The rotation of an adjuster 44 forces the end portion 42 of an operating rod 39 to advance and retreat, that causes a change in deformation of a spring 43 so as to change a set load on the spring 43. In addition to this, the adjuster 39 is moved to rotate the sleeve 37 and selectively change orifices 38A, 38B... to accord with the control hole 35, whereby an effective sectional area of the throttle flow path 51 can be changed. As described the above, since a set load on the spring 43 and the maximum effective sectional area of the throttle flow path 51 can be expanded or contracted, it is possible to expand the adjustment range for damping force characteristic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15249780A JPS5776339A (en) | 1980-10-30 | 1980-10-30 | Hydraulic shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15249780A JPS5776339A (en) | 1980-10-30 | 1980-10-30 | Hydraulic shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5776339A true JPS5776339A (en) | 1982-05-13 |
Family
ID=15541752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15249780A Pending JPS5776339A (en) | 1980-10-30 | 1980-10-30 | Hydraulic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5776339A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59142187U (en) * | 1983-03-14 | 1984-09-22 | 株式会社昭和製作所 | Front fork oil lock piece |
| US7913823B2 (en) * | 2007-06-27 | 2011-03-29 | Showa Corporation | Hydraulic shock absorber |
-
1980
- 1980-10-30 JP JP15249780A patent/JPS5776339A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59142187U (en) * | 1983-03-14 | 1984-09-22 | 株式会社昭和製作所 | Front fork oil lock piece |
| US7913823B2 (en) * | 2007-06-27 | 2011-03-29 | Showa Corporation | Hydraulic shock absorber |
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