GB1231670A - - Google Patents
Info
- Publication number
- GB1231670A GB1231670A GB1231670DA GB1231670A GB 1231670 A GB1231670 A GB 1231670A GB 1231670D A GB1231670D A GB 1231670DA GB 1231670 A GB1231670 A GB 1231670A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- cylinder
- mechanically
- locked
- operating
- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B9/00—Tables with tops of variable height
- A47B9/10—Tables with tops of variable height with vertically-acting fluid cylinder
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder
Landscapes
- Fluid-Damping Devices (AREA)
- Actuator (AREA)
- Clamps And Clips (AREA)
- Chairs Characterized By Structure (AREA)
Abstract
1,231,670. Fluid pressure jacks. FICHTEL & SACHS A.G. 5 May, 1969 [7 May, 1968], No. 22702/69. Heading B8J. [Also in Division F2] A pneumatic or hydropneumatic piston-andcylinder spring may be mechanically locked in any relative position of piston and cylinder by operating a device 6 inside the cylinder 1 in the vicinity of the pisron 2 which jams part 7 of the piston against the cylinder wall. As shown, the piston is both mechanically and fluidically locked relative to the cylinder, because of the position of the operating device 6, which both causes clamp pins 10 to press a clamp ring 7 against the wall of the cylinder, and closes the through-piston fluid passages 11. To unlock, an operating bar is pressed in and the device 6 moves down, thus releasing both locks. The piston 2 will then rise owing to the lower surface of the piston having a larger area, or can be pushed further into the cylinder if required, and then relocked by releasing the operating bar 5, the operating device 6 then rising into its locking position because of the excess pressure. In Fig. 2 (not shown), the piston may be mechanically locked only. As the piston-rod is rotated relative to the cylinder, it screws into or out of the piston, thus raising or lowering the operating device relative to the piston. In Fig. 3 (not shown), the piston may be both mechanically and fluidically locked and is provided with slits.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681750482 DE1750482B2 (en) | 1968-05-07 | 1968-05-07 | PNEUMATIC OR HYDROPNEUMATIC SHOCK ABSORBER WITH MECHANICAL LOCKING |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1231670A true GB1231670A (en) | 1971-05-12 |
Family
ID=5691845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1231670D Expired GB1231670A (en) | 1968-05-07 | 1969-05-05 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1750482B2 (en) |
FR (1) | FR2007955A1 (en) |
GB (1) | GB1231670A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2332791A1 (en) | 1973-06-28 | 1975-01-16 | Stabilus Gmbh | GAS SPRING AS ELECTRIC CONDUCTOR |
DE2366252C3 (en) * | 1973-06-28 | 1984-09-27 | Stabilus Gmbh, 5400 Koblenz | Electric power supply for a consumer mounted on a movable support |
US4779845A (en) * | 1981-12-23 | 1988-10-25 | Daimler-Benz Ag | Gas spring for motor vehicle with retaining drive for preventing piston rod return toward its operational, outermost position after accident |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2345503C2 (en) * | 1973-09-08 | 1983-04-14 | Stabilus Gmbh, 5400 Koblenz | Opening device for swiveling flaps |
DE2830906C2 (en) * | 1978-07-13 | 1985-03-28 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | Screwing device for screwing in and tightening screws with a high torque |
DE2848903C2 (en) * | 1978-11-10 | 1982-07-01 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | Device for screwing in and tightening screws |
DE2855560A1 (en) * | 1978-12-22 | 1980-07-03 | Stabilus Gmbh | GAS SPRING WITH MECHANICAL BLOCKING DEVICE |
DE2901066C2 (en) * | 1979-01-12 | 1981-03-19 | TOX-Dübel-Werk Richard W. Heckhausen KG, 7762 Bodmann-Ludwigshafen | Expansion anchor |
DE3529422A1 (en) * | 1985-08-16 | 1987-02-26 | Stabilus Gmbh | GASKET FOR PNEUMATIC, HYDRAULIC OR HYDROPNEUMATIC AGGREGATE |
DE3615688A1 (en) * | 1986-05-09 | 1987-11-12 | Bauer Fritz & Soehne Ohg | LENGTH ADJUSTABLE GAS SPRINGS AND ACTUATING DEVICE HERE |
DE3911245A1 (en) * | 1989-04-07 | 1990-10-11 | Stabilus Gmbh | GAS SPRING WITH RELEASE TESTLET PROTECTED FROM CORROSION |
DE8909051U1 (en) * | 1989-07-26 | 1989-09-07 | Fritz Bauer + Söhne oHG, 8503 Altdorf | Length-adjustable adjustment device |
DE4000245C1 (en) * | 1990-01-06 | 1991-02-28 | Guenther 7307 Aichwald De Hahn | Pressurised gas spring with cylinder - has annular groove in piston rod collar, whose depth permits retaining extra O=ring |
-
1968
- 1968-05-07 DE DE19681750482 patent/DE1750482B2/en not_active Withdrawn
-
1969
- 1969-05-02 FR FR6912368A patent/FR2007955A1/fr not_active Withdrawn
- 1969-05-05 GB GB1231670D patent/GB1231670A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2332791A1 (en) | 1973-06-28 | 1975-01-16 | Stabilus Gmbh | GAS SPRING AS ELECTRIC CONDUCTOR |
DE2366252C3 (en) * | 1973-06-28 | 1984-09-27 | Stabilus Gmbh, 5400 Koblenz | Electric power supply for a consumer mounted on a movable support |
US4779845A (en) * | 1981-12-23 | 1988-10-25 | Daimler-Benz Ag | Gas spring for motor vehicle with retaining drive for preventing piston rod return toward its operational, outermost position after accident |
Also Published As
Publication number | Publication date |
---|---|
DE1750482A1 (en) | 1971-10-07 |
FR2007955A1 (en) | 1970-01-16 |
DE1750482B2 (en) | 1972-04-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |