GB1451646A - - Google Patents
Info
- Publication number
- GB1451646A GB1451646A GB5941073A GB5941073A GB1451646A GB 1451646 A GB1451646 A GB 1451646A GB 5941073 A GB5941073 A GB 5941073A GB 5941073 A GB5941073 A GB 5941073A GB 1451646 A GB1451646 A GB 1451646A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- piston rod
- interior
- shock absorber
- piston
- 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.)
- Expired
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
- F16F9/486—Arrangements for providing different damping effects at different parts of the stroke comprising a pin or stem co-operating with an aperture, e.g. a cylinder-mounted stem co-operating with a hollow piston rod
-
- 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
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/362—Combination of sealing and guide arrangements for piston rods
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
1451646 Hydropneumatic shock absorber TOKICO Ltd 21 Dec 1973 [27 Dec 1972] 59410/73 Heading F2S A hydropneumatic shock absorber comprises a cylinder 16 containing hydraulic liquid; a hollow piston rod 1 reciprocable with respect to and extending out of an open end of the cylinder; a free piston 6 within the piston rod 1 and partitioning the interior 2 into a liquid chamber 4, which communicates through a resisting-force generating means 18, 11 with the interior 24 of the cylinder 16, and a gas chamber 8; first and second pistons 10, 14, mounted rigidly on the piston rod 2, the second piston 14 having a seal member 15 for sealing the interior 24 of the cylinder 16 from the atmosphere; and a relief opening 19 in the inner surface of the cylinder 16 and having one end thereof open in the vicinity of the seal member 15 at the atmosphere side thereof when the piston rod 1 is fully extended and having the other end thereof open at the open end of the cylinder 16 to atmosphere. During assembly of the shock absorber, the relief opening 19 allows a maximum amount of oil to escape before the sealing member 15 becomes effective, and final insertion is made of the piston rod 1 to allow a circlip 20 to be inserted. The effect is to maximise the working stroke of the free piston 6. The relief opening 19 may be an axial groove, Fig. 1(a), an enlarged diameter 19", Fig. 2 (not shown) or a combination of both, Figs. 3(a) and 3(b) (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58373A JPS533477B2 (en) | 1972-12-27 | 1972-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1451646A true GB1451646A (en) | 1976-10-06 |
Family
ID=11477722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5941073A Expired GB1451646A (en) | 1972-12-27 | 1973-12-21 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS533477B2 (en) |
| DE (1) | DE2364800C3 (en) |
| FR (1) | FR2212504B1 (en) |
| GB (1) | GB1451646A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108498062A (en) * | 2018-04-26 | 2018-09-07 | 郑由周 | Colonoscopy sacculus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5525785A (en) * | 1978-08-16 | 1980-02-23 | Babcock Hitachi Kk | Passage opening/closing apparatus for combustion exhaust gas duct |
-
1972
- 1972-12-27 JP JP58373A patent/JPS533477B2/ja not_active Expired
-
1973
- 1973-12-21 GB GB5941073A patent/GB1451646A/en not_active Expired
- 1973-12-26 FR FR7346365A patent/FR2212504B1/fr not_active Expired
- 1973-12-27 DE DE19732364800 patent/DE2364800C3/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108498062A (en) * | 2018-04-26 | 2018-09-07 | 郑由周 | Colonoscopy sacculus |
| CN108498062B (en) * | 2018-04-26 | 2024-03-22 | 郑由周 | Enteroscope saccule |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2212504A1 (en) | 1974-07-26 |
| JPS4987969A (en) | 1974-08-22 |
| DE2364800A1 (en) | 1974-07-18 |
| FR2212504B1 (en) | 1976-10-08 |
| DE2364800C3 (en) | 1980-08-07 |
| DE2364800B2 (en) | 1979-11-29 |
| JPS533477B2 (en) | 1978-02-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19931220 |