EP0745341B1 - Längenverstellbare Säule für Stühle, Tische od. dgl. und Standrohr hierfür - Google Patents
Längenverstellbare Säule für Stühle, Tische od. dgl. und Standrohr hierfür Download PDFInfo
- Publication number
- EP0745341B1 EP0745341B1 EP96105026A EP96105026A EP0745341B1 EP 0745341 B1 EP0745341 B1 EP 0745341B1 EP 96105026 A EP96105026 A EP 96105026A EP 96105026 A EP96105026 A EP 96105026A EP 0745341 B1 EP0745341 B1 EP 0745341B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- upright tube
- groove
- annular section
- piston rod
- length
- 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 - Lifetime
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
Definitions
- the invention relates to a length-adjustable column according to the preamble of claim 1 and a standpipe therefor according to the preamble of the claim 4th
- EP-B-0 366 889 is a length-adjustable column for chairs, tables or the like.
- the base plate is supported on the end face of the edge.
- the end face is spaced from the inner wall of the standpipe.
- the bottom plate is to the upper end of the standpipe through a bead, indentation or the like. Held in the standpipe. This solution has been found in the Practice extremely proven.
- the standpipe is double-walled and the about concentrically nested tube walls by means of radial webs connected and stiffened.
- the entire standpipe is molded from plastic and can only be made in this way become.
- At the lower end it has a ring-like bottom that is attached to the is formed on the lower end of the standpipe.
- An axial roller bearing is supported, which in turn is supported by the piston rod of the Length adjustment element is penetrated.
- the invention has for its object a column or a standpipe each of the generic type so that the standpipe at high strength is particularly simple in construction and particularly easy to manufacture is.
- this object is achieved with a length-adjustable column of the generic type by the features in the labeling part of the Claim 1 and in a standpipe according to the preamble of the claim 5 solved by the features in its labeling part.
- the chair column shown in the drawing has a standpipe 1, in which a length-adjustable gas spring 2 as a pneumatic or hydropneumatic Piston-cylinder adjusting element is arranged.
- the standpipe 1 and the gas spring 2 have a common central longitudinal axis 3.
- An outer housing 4 of the gas spring 2 is displaceable in the direction of the axis 3 supported in a guide bush 5, which on one - in the Drawing upper - end 6 of the standpipe 1 is arranged.
- this outer housing 4 of the gas spring 2 can be the housing itself act or a protective tube surrounding this outside.
- a piston rod 7 protrudes from the housing 4 of the gas spring 2 via an axial roller bearing 8 opposite a bottom 9 of the standpipe 1 in Direction of the axis 3 is supported.
- the bottom 9 is on the one end 6 opposite the other - in the drawing below shown - end 10 of the standpipe 1.
- a the axial roller bearing 8th penetrating pin 11 of the piston rod 7 extends through a Axis 3 concentrically formed opening 12 in the bottom 9. It is against the bottom of the bottom 9 by means of a washer 13 and one Spring retaining ring 14 secured against pulling out.
- the diameter the opening 12 is larger than the diameter of the pin 11.
- the standpipe 1 has an end adjacent to the end 10 slightly tapered cone section 17, by means of which a Attachment of the standpipe 1 in a corresponding conical sleeve Chair cross or the like is possible.
- the entire base 9 of the standpipe 1 is formed in one piece with it, is therefore from the actual standpipe by deformation of the same designed.
- the cone section 17 is adjacent to it constricted lower section 18 on which the bottom 9 is formed is. This has an open towards the inside of the standpipe 1 Channel 19, which in turn in the direction of axis 3 in ring section 20 which is substantially flat and runs radially to the axis 3 connects, which serves as a bearing surface for the axial rolling bearing 8 and the is penetrated by the opening 12.
- the channel 19 is approximately part-circular trained and has no sharp edges.
- the transition 21 from the groove 19 to the ring section 20 is also rounded, i.e. Not sharp-edged.
- the inclined towards the ring portion 20 Flank 22 of the channel 19 deviates significantly from the pitch circle cross section Ring section 20 may be inclined.
- the inner diameter D of section 18 of the standpipe 1 is like that Drawing can be seen - many times larger than the diameter d of the piston rod 7.
- the diameter d 'of the roller bearing 8 is also significantly smaller than the inner diameter D.
- the average width a of Channel 19 radial to axis 3 is in the range of 4 to 6 mm.
- the inside diameter D is in the range of 30 to 50 mm.
- the diameter d of the Piston rod 7 is in the range of 10 mm. The following applies to the diameter d ' a range of 20 to 30 mm.
- the one that projects under the floor 9 is Area of the pin 11 with the washer 13 and the spring retaining ring 14 equally sunk in the bottom 9 because the gutter 19 protrudes downward over the ring section 20.
- the spring circlip 14 is therefore protected within the channel 19. He can not be pulled off by high-flour carpets and the risk of injury is excluded if a user has the bottom of the foot Area of the standpipe 1 touched.
Landscapes
- Chairs Characterized By Structure (AREA)
- Fluid-Damping Devices (AREA)
- Tables And Desks Characterized By Structural Shape (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Description
- Fig. 1
- eine Längsansicht einer teilweise aufgebrochen dargestellten Säule nach der Erfindung und
- Fig. 2
- einen Längsschnitt durch eine Teildarstellung eines Standrohres der Säule.
Claims (6)
- Längenverstellbare Säule für Stühle, Tische oder dgl., mit einem einwandigen Standrohr (1) und einem konzentrisch zu einer gemeinsamen Mittel-Längs-Achse (3) hierin angeordneten, pneumatischen oder hydropneumatischen Längenverstellelement, dessen Gehäuse (4) im Standrohr (1) radial abgestützt in Richtung der Achse (3) verschiebbar geführt ist und dessen Kolbenstange (7) im Bereich ihres freien Endes an einem Boden (9) des Standrohres (1) in Richtung der Achse (3) festgelegt ist, wobei der Boden (9) im Bereich des dem Austritt des Gehäuses (4) aus dem Standrohr (1) abgewandten Endes (10) des Standrohres (1) eine radial nach innen in das Standrohr (1) ragende, in das Standrohr (1) hinein offene Rinne (19) und einen mit der Rinne (19) gekoppelten Ringabschnitt (20) aufweist, an dem die Kolbenstange (7) festgelegt ist, wobei sich die Kolbenstange (7) über ein Axial-Wälzlager (8) auf dem Boden (9) abstützt und wobei der Durchmesser (D') des Ringabschnitts (20) größer ist als der Durchmesser (d') des Wälzlagers (8),
dadurch gekennzeichnet,
daß die Rinne (19) und der Ringabschnitt (20) einstückig aus dem Standrohr (1) durch Verformen desselben ausgeformt sind. - Säule nach Anspruch 1, dadurch gekennzeichnet,
daß die Rinne (19) eine zum Ringabschnitt (20) hin geneigte Flanke (22) aufweist. - Säule nach Anspruch loder 2, dadurch gekennzeichnet,
daß der Übergang (21) von der Rinne (19) in den Ringabschnitt (20) abgerundet ist. - Einwandiges Standrohr für eine längenverstellbare Säule für Stühle, Tische oder dgl., in dem konzentrisch zu einer gemeinsamen Mittel-Längs-Achse (3) ein pneumatisches oder hydropneumatisches Längenverstellelement angeordnet werden kann, dessen Gehäuse (4) im Standrohr (1) radial abgestützt und in Richtung der Achse (3) verschiebbar geführt und dessen Kolbenstange (7) im Bereich ihres freien Endes an einem Boden (9) des Standrohres (1) in Richtung der Achse festlegbar ist, wobei der Boden (9) im Bereich des dem Austritt des Gehäuses (4) aus dem Standrohr (1) abgewandten Endes (10) des Standrohres (1) eine radial nach innen in das Standrohr (1) ragende, in das Standrohr (1) hinein offene Rinne (19) und einen mit der Rinne (19) gekoppelten Ringabschnitt (20) aufweist, an dem die Kolbenstange (7) festgelegt ist, wobei sich die Kolbenstange (7) über ein Axial-Wälzlager (8) auf dem Boden (9) abstützt und wobei der Durchmesser (D') des Ringabschnitts (20) größer ist als der Durchmesser (d') des Wälzlagers (8),
dadurch gekennzeichnet,
daß die Rinne (19) und der Ringabschnitt (20) einstückig aus dem Standrohr (1) durch Verformen desselben ausgeformt sind. - Standrohr nach Anspruch 4, dadurch gekennzeichnet,
daß die Rinne (19) eine zum Ringabschnitt (20) hin geneigte Flanke (22) aufweist. - Standrohr nach Anspruch 4 oder 5, dadurch gekennzeichnet,
daß der Übergang (21) von der Rinne (19) in den Ringabschnitt (20) abgerundet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29508915U | 1995-05-30 | ||
DE29508915U DE29508915U1 (de) | 1995-05-30 | 1995-05-30 | Längenverstellbare Säule für Stühle, Tische o.dgl. und Standrohr hierfür |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0745341A1 EP0745341A1 (de) | 1996-12-04 |
EP0745341B1 true EP0745341B1 (de) | 2001-06-13 |
Family
ID=8008732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96105026A Expired - Lifetime EP0745341B1 (de) | 1995-05-30 | 1996-03-29 | Längenverstellbare Säule für Stühle, Tische od. dgl. und Standrohr hierfür |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0745341B1 (de) |
JP (1) | JP3848400B2 (de) |
KR (1) | KR100374068B1 (de) |
CN (1) | CN1109527C (de) |
DE (2) | DE29508915U1 (de) |
TW (1) | TW300426U (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101135095B (zh) * | 2006-08-31 | 2011-02-02 | 海尔集团公司 | 一种全自动洗衣机及其洗涤方法 |
US10244861B1 (en) | 2015-01-24 | 2019-04-02 | Nathan Mark Poniatowski | Desktop workspace that adjusts vertically |
US10893748B1 (en) | 2017-07-08 | 2021-01-19 | Office Kick, Inc. | Height adjustable desktop |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH105302A (fr) * | 1923-02-19 | 1924-07-01 | Carel Olland Willem | Amortisseur réglable à liquide. |
DE1529723B2 (de) * | 1966-12-02 | 1977-03-10 | Stabilus Gmbh, 5400 Koblenz | Federbein fuer hoehenverstellbare moebelteile |
DE7623283U1 (de) * | 1976-07-23 | 1977-01-13 | Stabilus Gmbh, 5400 Koblenz | Fuehrungssaeule zur stufenlosen hoeheneinstellung von stuhlsitzen |
US4640484A (en) * | 1985-05-06 | 1987-02-03 | Fichtel & Sachs Industries | Support column with gravity dependent retention means |
DE3833959A1 (de) * | 1988-10-06 | 1990-04-12 | Bauer Fritz & Soehne Ohg | Laengenverstellbare saeule fuer stuehle, tische oder dergleichen |
IL98036A0 (en) * | 1991-05-02 | 1992-06-21 | Yoav Cohen | Plastic stand pipe support for load-bearing adjustable piston |
DE4129089A1 (de) * | 1991-09-02 | 1993-03-04 | Suspa Compart Ag | Laengenverstellbare saeule fuer stuehle, tische oder dergleichen |
DE4129513A1 (de) * | 1991-09-05 | 1993-03-11 | Schaeffler Waelzlager Kg | Federbeinlager |
DE4200786A1 (de) * | 1992-01-14 | 1993-07-15 | Suspa Compart Ag | Laengenverstellbare saeule fuer tische, stuehle o. dgl. |
DE4209218C2 (de) * | 1992-03-21 | 1995-03-16 | Fichtel & Sachs Ag | Schwingungsdämpfer oder Federung in teleskopartiger Baufom |
DE9208620U1 (de) * | 1992-06-26 | 1992-09-03 | Fichtel & Sachs Ag, 8720 Schweinfurt | Stiftgelenk für einen Schwingungsdämpfer |
DE4227553A1 (de) * | 1992-08-20 | 1994-02-24 | Stabilus Gmbh | Höhenverstellbare Stützvorrichtung, insbesondere für die Sitzfläche eines Stuhles |
US5511759A (en) * | 1994-05-26 | 1996-04-30 | Steelcase, Inc. | Hydraulic chair height adjustment mechanism |
-
1995
- 1995-05-30 DE DE29508915U patent/DE29508915U1/de not_active Expired - Lifetime
- 1995-10-05 TW TW084214324U patent/TW300426U/zh unknown
-
1996
- 1996-03-29 EP EP96105026A patent/EP0745341B1/de not_active Expired - Lifetime
- 1996-03-29 DE DE59607065T patent/DE59607065D1/de not_active Expired - Lifetime
- 1996-04-26 JP JP10800996A patent/JP3848400B2/ja not_active Expired - Fee Related
- 1996-05-22 CN CN96105489A patent/CN1109527C/zh not_active Expired - Fee Related
- 1996-05-28 KR KR1019960018169A patent/KR100374068B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE29508915U1 (de) | 1996-10-02 |
TW300426U (en) | 1997-03-11 |
KR100374068B1 (ko) | 2003-09-22 |
CN1142343A (zh) | 1997-02-12 |
JP3848400B2 (ja) | 2006-11-22 |
JPH09151977A (ja) | 1997-06-10 |
KR960040258A (ko) | 1996-12-17 |
CN1109527C (zh) | 2003-05-28 |
EP0745341A1 (de) | 1996-12-04 |
DE59607065D1 (de) | 2001-07-19 |
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