GB2086004A - Shock absorber with rotatable coil spring seat - Google Patents
Shock absorber with rotatable coil spring seat Download PDFInfo
- Publication number
- GB2086004A GB2086004A GB8026860A GB8026860A GB2086004A GB 2086004 A GB2086004 A GB 2086004A GB 8026860 A GB8026860 A GB 8026860A GB 8026860 A GB8026860 A GB 8026860A GB 2086004 A GB2086004 A GB 2086004A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spring
- coil spring
- shock absorber
- seat
- low friction
- 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.)
- Withdrawn
Links
- 230000035939 shock Effects 0.000 title claims abstract description 26
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 24
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000002411 adverse Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 238000004904 shortening Methods 0.000 claims description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
-
- 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
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/12—Attachments or mountings
- F16F1/127—Attachments or mountings allowing rotation about axis of spring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
Abstract
A spring seat 5 for receiving the end of a coil spring 1 in a shock absorber is made rotatable by the inclusion of a low friction member located between the seat 5 and a plate 9 and comprising a ring-shaped frame 7 formed with holes containing ball bearings 6. <IMAGE>
Description
SPECIFICATION
Shock absorber
This invention relates to shock absorbers including coiled compression springs.
In such shock absorbers, in which a piston is slidably fitted in a cylinder and a coil spring surrounding the rod of the piston acts against the cylinder, the spring seat of the coil spring is normally fixed. Especially when the spring seat is fixed to an end member screwed into the end of a tube, the screwed portion of the end member is so constructed that it is made more secure by the torsion established when the coil spring is compressed. As a result, metal chips are generated by the friction between the curled end of the coil spring and the spring seat due to the relative movement caused by the torsion resulting from the compression and these chips clog the oil ports, thereby reducing the shock absorbing effect.
In addition the coil spring and the inner surface of the tube of the shock absorber contact each other, when the former bulges outwardly under the compression, thereby adversely affecting the operating characteristics and performance of the shock absorber and shortening its life.
According to the present invention, these disadvantages are overcome by making at least one of the spring seats for the ends of the coil spring rotatable by means of a low friction member.
An example of a shock absorber according to the present invention will now be described, with reference to the accompanying drawing which is a longitudinal section.
In the shock absorber illustrated a coiled compression spring 1 is interposed between an end member 3 supporting one end of a piston rod 2 and the corresponding cylinder portion (not shown) which is located at the other end of the piston rod 2. The spring 1 is enclosed by a tube 4 and end of the spring is retained by a spring seat 5 which is arranged to rotate through a number of low friction members 6 at the rear of the pressure receiving surface and which are shown as supported by a seat plate 9, which may not be necessary in all constructions.
The low friction members 6 have the function of reducing the rolling friction, being, for example, in the forum of ball bearings or rollers, which are fitted to rotate in holes or recesses 8 formed in a ring-shaped supporting frame or cage 7. As a result, the spring seat 5 engaging with these low friction members is allowed to rotate with the end of the coil spring 1 by the rolling friction resulting from the low friction members 6, in accordance with the torsion which is established when the coil spring 1 is compressed.
A similar spring receiving structure can also be applied to the spring seat at the other end (i.e. the cylinder end) of the coil spring. Thus, the spring seats at one or both ends of the coil spring are constructed as described.
As a result of the reduction of friction between the coil spring and the seat or seats the generation of metal chips and the deformation of the spring to engage the tube are prevented so that the performance of the shock absorber can be maintained at a high level.
1. A shock absorber including a piston slidably fitted in a cylinder and a coiled compression spring surrounding the rod of the piston and acting against the cylinder, and in which one end of the coil spring is received by a seat capable of rotation through a low friction member.
2. A shock absorber according to claim 1 in which both ends of the coil spring are received by such rotary seats.
3. A shock absorber according to claim 1 or claim 2 in which the or each low friction member includes a ring-shaped supporting frame formed with holes or recesses enclosing ball bearings or rollers.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (3)
1. A shock absorber including a piston slidably fitted in a cylinder and a coiled compression spring surrounding the rod of the piston and acting against the cylinder, and in which one end of the coil spring is received by a seat capable of rotation through a low friction member.
2. A shock absorber according to claim 1 in which both ends of the coil spring are received by such rotary seats.
3. A shock absorber according to claim 1 or claim 2 in which the or each low friction member includes a ring-shaped supporting frame formed with holes or recesses enclosing ball bearings or rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8026860A GB2086004A (en) | 1980-08-18 | 1980-08-18 | Shock absorber with rotatable coil spring seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8026860A GB2086004A (en) | 1980-08-18 | 1980-08-18 | Shock absorber with rotatable coil spring seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2086004A true GB2086004A (en) | 1982-05-06 |
Family
ID=10515518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8026860A Withdrawn GB2086004A (en) | 1980-08-18 | 1980-08-18 | Shock absorber with rotatable coil spring seat |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2086004A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4236685A1 (en) * | 1992-10-30 | 1994-05-05 | Schaeffler Waelzlager Kg | Ball indent device with freedom to move axially and rotationally - is provided by mounting ball in bearing located guide that is also supported in linear bearing |
| CN112447200A (en) * | 2020-11-25 | 2021-03-05 | 西安鼎蓝通信技术有限公司 | Data unit storage array easy to assemble and disassemble |
| CN113847372A (en) * | 2021-09-21 | 2021-12-28 | 中国航空工业集团公司西安飞机设计研究所 | Anti-loosening and anti-breaking undercarriage tension spring |
| US11293509B2 (en) * | 2016-10-31 | 2022-04-05 | Hitachi Astemo, Ltd. | Rebound spring structure |
-
1980
- 1980-08-18 GB GB8026860A patent/GB2086004A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4236685A1 (en) * | 1992-10-30 | 1994-05-05 | Schaeffler Waelzlager Kg | Ball indent device with freedom to move axially and rotationally - is provided by mounting ball in bearing located guide that is also supported in linear bearing |
| US11293509B2 (en) * | 2016-10-31 | 2022-04-05 | Hitachi Astemo, Ltd. | Rebound spring structure |
| CN112447200A (en) * | 2020-11-25 | 2021-03-05 | 西安鼎蓝通信技术有限公司 | Data unit storage array easy to assemble and disassemble |
| CN112447200B (en) * | 2020-11-25 | 2023-11-28 | 鼎蓝惠民信息技术(西安)有限公司 | Data unit storage array easy to assemble and disassemble |
| CN113847372A (en) * | 2021-09-21 | 2021-12-28 | 中国航空工业集团公司西安飞机设计研究所 | Anti-loosening and anti-breaking undercarriage tension spring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2225306C2 (en) | Railway car large-stroke draft gear | |
| US5257680A (en) | Surface effect dampers having both hysteresis and a frictional component | |
| US3866724A (en) | Variable two-way shock absorber | |
| US4513990A (en) | Bushing structure in a vehicle suspension system | |
| US3332523A (en) | Telescopic frictional shock absorber | |
| US3953010A (en) | Resilient mounting for a shock absorber | |
| US3232390A (en) | Shock absorber including spring loaded valve in piston | |
| US4591030A (en) | Elastomeric damped shock absorber | |
| US4389045A (en) | Liquid energy absorber device | |
| US3948497A (en) | Energy absorber | |
| US4140304A (en) | Resilient vehicle ride strut | |
| GB2086004A (en) | Shock absorber with rotatable coil spring seat | |
| US6485008B1 (en) | Jounce bumper | |
| DE102011084665A1 (en) | Elastic air spring piston bearing | |
| US4966257A (en) | Shock absorbing or oscillation damper device | |
| GB2312659A (en) | Buffers | |
| US2948529A (en) | Buffer device | |
| US3893550A (en) | Hydraulic shock absorber of the telescopic type | |
| US3713666A (en) | Ride cylinder | |
| JP2002039252A (en) | Rebound stopper structure of damper | |
| US5186439A (en) | Friction compensating automotive suspension strut | |
| US3799531A (en) | Buffering device | |
| US5746394A (en) | Method and apparatus for damping high frequency vibrations generated by landing gear brake applications | |
| JPS5822426Y2 (en) | suspension spring device | |
| GB2059005A (en) | Improvement to shock absorbers for automatic coupling devices for railway vehicles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |