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EP0745341A1 - A length adjustable column for chairs, tables or the like, and supporting tube therefor - Google Patents

A length adjustable column for chairs, tables or the like, and supporting tube therefor Download PDF

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Publication number
EP0745341A1
EP0745341A1 EP96105026A EP96105026A EP0745341A1 EP 0745341 A1 EP0745341 A1 EP 0745341A1 EP 96105026 A EP96105026 A EP 96105026A EP 96105026 A EP96105026 A EP 96105026A EP 0745341 A1 EP0745341 A1 EP 0745341A1
Authority
EP
European Patent Office
Prior art keywords
standpipe
ring section
piston rod
axis
groove
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.)
Granted
Application number
EP96105026A
Other languages
German (de)
French (fr)
Other versions
EP0745341B1 (en
Inventor
Herbert Wolf
Peter Lang
Georg Bamler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suspa Holding GmbH
Original Assignee
Suspa Compart AG
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Filing date
Publication date
Application filed by Suspa Compart AG filed Critical Suspa Compart AG
Publication of EP0745341A1 publication Critical patent/EP0745341A1/en
Application granted granted Critical
Publication of EP0745341B1 publication Critical patent/EP0745341B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 claim 5.
  • Such length-adjustable columns are known from EP 0 366 889 B1 (corresponding to US Pat. No. 4,969,619).
  • the lower edge of the standpipe is bent approximately in a semicircular cross-section to form a channel which is open in the direction of the central longitudinal axis and into the standpipe.
  • 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 towards the upper end of the standpipe through a bead, indentation or the like. held in the standpipe.
  • the invention has for its object to design a column or a standpipe of the generic type so that the standpipe high strength is particularly simple and is particularly easy to manufacture.
  • the measures according to the invention a separate base plate, or the like in a further separate operation by means of a bead. to be determined is completely saved.
  • the stability of the floor design is extremely high, so that even if the standpipe in the area of the floor is large compared to the piston rod or a bearing to be attached to it, the piston rod of the length adjustment element is reliably held.
  • the chair column shown in the drawing has a standpipe 1, in which a length-adjustable gas spring 2 is arranged as a pneumatic or hydropneumatic piston-cylinder adjusting element.
  • 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 displaceably supported in the direction of the axis 3 in a guide bush 5, which is arranged at one end 6 of the standpipe 1, which is upper in the drawing.
  • this outer housing 4 of the gas spring 2 can be the housing itself or a protective tube surrounding it.
  • a piston rod 7 protrudes from the housing 4 of the gas spring 2 and is supported via an axial roller bearing 8 in relation to a base 9 of the standpipe 1 in the direction of the axis 3.
  • the bottom 9 is located at the one end 6 opposite the other end 10 of the standpipe 1, shown in the drawing below.
  • a pin 11 of the piston rod 7 passing through the axial roller bearing 8 extends through an opening 12 in the opening 3 which is concentric with the axis 3 Bottom 9. It is secured against being pulled out against the underside of the bottom 9 by means of a washer 13 and a spring retaining ring 14.
  • the diameter of the opening 12 is larger than the diameter of the pin 11.
  • the standpipe 1 has, adjacent to the end 10, a slightly conical tapered section 17, by means of which the standpipe 1 is fastened in a corresponding cone bushing of a chair cross or the like. is possible.
  • the entire base 9 of the standpipe 1 is formed in one piece with it, that is to say it is formed from the actual standpipe by deformation thereof.
  • the cone section 17 is followed by a lower section 18 constricted with respect to the latter, on which the bottom 9 is formed.
  • This has a channel 19 which is open towards the inside of the standpipe 1 and which is connected in turn in the direction of the axis 3 to a substantially flat and radially extending to the axis 3 ring portion 20, which serves as a bearing surface for the axial roller bearing 8 and the is penetrated by the opening 12.
  • the channel 19 is approximately part-circular and has no sharp edges.
  • the transition 21 from the channel 19 to the ring section 20 is also rounded, i.e. not sharp-edged.
  • the flank 22 of the channel 19 which is inclined towards the ring section 20 can be clearly inclined towards the ring section 20, deviating from the pitch circle cross section.
  • the inner diameter D of the section 18 of the standpipe 1 is - as the drawing shows - several times larger than the diameter d of the piston rod 7. Also the diameter d 'of the roller bearing 8 is 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 inner diameter D is in the range from 30 to 50 mm.
  • the diameter d of the piston rod 7 is in the range of 10 mm. A range of 20 to 30 mm applies to the diameter d '.
  • the area of the pin 11 projecting below the base 9 with the washer 13 and the spring retaining ring 14 is likewise arranged sunk in the base 9, since the groove 19 protrudes downward over the ring section 20.
  • the spring retaining ring 14 is thus protected within the groove 19. It cannot be pulled off from high-flour carpets and the risk of injury is excluded if a user touches the lower area of the standpipe 1 with his foot.

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)

Abstract

The support comprises a stand pipe (1) with a pneumatically or hydro-pneumatically adjustable element positioned concentrically inside it. The housing (4) of this element is radially supported by the pipe and guided along in the direction of its axis (3). The element's piston rod (7) is attached to its free end, at the bottom (9) of the stand pipe. The bottom of the pipe is rolled over to form an inwards facing flange (20) with an extended groove which forms a ring ridge (19). The bottom of the piston rod is attached to the flanged base of the pipe.

Description

Die Erfindung betrifft eine längenverstellbare Säule nach dem Oberbegriff des Anspruches 1 und ein Standrohr hierfür nach dem Oberbegriff des Anspruches 5.The invention relates to a length-adjustable column according to the preamble of claim 1 and a standpipe therefor according to the preamble of claim 5.

Derartige längenverstellbare Säulen sind aus der EP 0 366 889 B1 (entsprechend US-PS 4 969 619) bekannt. Bei diesen bekannten Säulen ist der untere Rand des Standrohres im Querschnitt etwa halbkreisförmig unter Bildung einer in Richtung der Mittel-Längs-Achse und in das Standrohr hinein offenen Rinne nach innen gebogen. Die Bodenplatte ist auf der Stirnfläche des Randes abgestützt. Die Stirnfläche ist zur Innenwand des Standrohres beabstandet. Die Bodenplatte wird zum oberen Ende des Standrohres hin durch eine Sicke, Eindrückung od.dgl. im Standrohr gehalten. Diese Lösung hat sich in der Praxis außerordentlich bewährt.Such length-adjustable columns are known from EP 0 366 889 B1 (corresponding to US Pat. No. 4,969,619). In the case of these known columns, the lower edge of the standpipe is bent approximately in a semicircular cross-section to form a channel which is open in the direction of the central longitudinal axis and into the standpipe. 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 towards the upper end of the standpipe through a bead, indentation or the like. held in the standpipe. This solution has proven extremely useful in practice.

Aus der US-PS 4 245 826 (entsprechend DE-U 76 23 238) sind weiterhin im Prinzip gleiche längenverstellbare Säulen bekannt, bei denen der untere Rand des Standrohres radial nach innen umgebördelt ist, so daß die Bodenplatte auf diesen Rand aufgelegt werden kann. Zur Oberseite der Bodenplatte erfolgt eine Sicherung durch eine in das Standrohr eingeformte Sicke.From US-PS 4 245 826 (corresponding to DE-U 76 23 238) in principle the same length-adjustable columns are known in which the lower edge of the standpipe is flanged radially inwards so that the base plate can be placed on this edge. The top of the base plate is secured by a bead molded into the standpipe.

Der Erfindung liegt die Aufgabe zugrunde, eine Säule bzw. ein Standrohr der jeweils gattungsgemäßen Art so auszugestalten, daß das Standrohr bei hoher Festigkeit besonders einfach aufgebaut und besonders einfach herstellbar ist.The invention has for its object to design a column or a standpipe of the generic type so that the standpipe high strength is particularly simple and is particularly easy to manufacture.

Diese Aufgabe wird erfindungsgemäß bei einer längenverstellbaren Säule der gattungsgemäßen Art durch die Merkmale im Kennzeichnungsteil des Anspruches 1 und bei einem Standrohr nach dem Oberbegriff des Anspruches 5 durch die Merkmale in dessen Kennzeichnungsteil gelöst.This object is achieved according to the invention in a length-adjustable column of the generic type by the features in the characterizing part of claim 1 and in a standpipe according to the preamble of claim 5 by the features in its characterizing part.

Durch die erfindungsgemäßen Maßnahmen wird eine gesonderte Bodenplatte, die in einem weiteren gesonderten Arbeitsgang mittels einer Sicke od.dgl. festzulegen ist, vollständig eingespart. Die Stabilität der Bodengestaltung ist außerordentlich hoch, so daß auch dann, wenn das Standrohr im Bereich des Bodens im Vergleich zur Kolbenstange oder einem an diesem anzubringenden Lager groß ist, eine zuverlässige Halterung der Kolbenstange des Längerverstellelementes gegeben ist.The measures according to the invention a separate base plate, or the like in a further separate operation by means of a bead. to be determined is completely saved. The stability of the floor design is extremely high, so that even if the standpipe in the area of the floor is large compared to the piston rod or a bearing to be attached to it, the piston rod of the length adjustment element is reliably held.

Weitere vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.Further advantageous embodiments result from the subclaims.

Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels anhand der Zeichnung. Es zeigen

Fig. 1
eine Längsansicht einer teilweise aufgebrochen dargestellten Säule nach der Erfindung und
Fig. 2
einen Längsschnitt durch eine Teildarstellung eines Standrohres der Säule.
Details of the invention emerge from the following description of an exemplary embodiment with reference to the drawing. Show it
Fig. 1
a longitudinal view of a partially broken column according to the invention and
Fig. 2
a longitudinal section through a partial view of a standpipe of the column.

Die in der Zeichnung dargestellte Stuhl-Säule weist ein Standrohr 1 auf, in dem eine längenverstellbare Gasfeder 2 als pneumatisches oder hydropneumatisches Kolben-Zylinder-Verstellelement angeordnet ist. Das Standrohr 1 und die Gasfeder 2 haben eine gemeinsame Mittel-Längs-Achse 3.The chair column shown in the drawing has a standpipe 1, in which a length-adjustable gas spring 2 is arranged as a pneumatic or hydropneumatic piston-cylinder adjusting element. The standpipe 1 and the gas spring 2 have a common central longitudinal axis 3.

Ein äußeres Gehäuse 4 der Gasfeder 2 ist in Richtung der Achse 3 verschiebbar in einer Führungsbüchse 5 abgestützt, die an einem - in der Zeichnung oberen - Ende 6 des Standrohres 1 angeordnet ist. Bei diesem äußeren Gehäuse 4 der Gasfeder 2 kann es sich um deren Gehäuse selber handeln oder um ein dieses außen umgebendes Schutzrohr.An outer housing 4 of the gas spring 2 is displaceably supported in the direction of the axis 3 in a guide bush 5, which is arranged at one end 6 of the standpipe 1, which is upper in the drawing. With this outer housing 4 of the gas spring 2 can be the housing itself or a protective tube surrounding it.

Aus dem Gehäuse 4 der Gasfeder 2 ragt eine Kolbenstange 7 heraus, die über ein Axial-Wälzlager 8 gegenüber einem Boden 9 des Standrohres 1 in Richtung der Achse 3 abgestützt ist. Der Boden 9 befindet sich an dem dem einen Ende 6 entgegengesetzten anderen - in der Zeichnung unten dargestellten - Ende 10 des Standrohres 1. Ein das Axial-Wälzlager 8 durchsetzender Zapfen 11 der Kolbenstange 7 erstreckt sich durch eine zur Achse 3 konzentrisch ausgebildete Öffnung 12 im Boden 9. Er ist gegen die Unterseite des Bodens 9 mittels einer Beilagscheibe 13 und eines Feder-Sicherungsrings 14 gegen ein Herausziehen gesichert. Der Durchmesser der Öffnung 12 ist größer als der Durchmesser des Zapfens 11. Durch diese geschilderte Befestigung ist die Gasfeder 2 gegenüber dem Standrohr 1 drehbar. Sie ist aufgrund des radialen Spiels 15 zwischen Zapfen 11 und Öffnung 12 in geringem Maße gegenüber dem Standrohr 1 neigbar, also verkantungsfrei in der Führungsbüchse 5 geführt. Sie ist schließlich mit Ihrer Kolbenstange 7 in Richtung der Achse 3 gegenüber dem Standrohr 1 festgelegt, so daß bei Längenverstellungen der Gasfeder 2 durch Betätigung eines Betätigungsstiftes 16 das Gehäuse 4 der Gasfeder 2 aus dem Standrohr 1 herausgefahren oder in dieses hineingeschoben wird. Der Betätigungsstift 16 befindet sich an dem der Kolbenstange 7 entgegengesetzten Ende des Gehäuses 4 der Gasfeder 2. Hier wird auch ein Stuhlsitz oder eine Tischplatte befestigt.A piston rod 7 protrudes from the housing 4 of the gas spring 2 and is supported via an axial roller bearing 8 in relation to a base 9 of the standpipe 1 in the direction of the axis 3. The bottom 9 is located at the one end 6 opposite the other end 10 of the standpipe 1, shown in the drawing below. A pin 11 of the piston rod 7 passing through the axial roller bearing 8 extends through an opening 12 in the opening 3 which is concentric with the axis 3 Bottom 9. It is secured against being pulled out against the underside of the bottom 9 by means of a washer 13 and a spring retaining ring 14. The diameter of the opening 12 is larger than the diameter of the pin 11. The fastening described allows the gas spring 2 to be rotated relative to the standpipe 1. Due to the radial play 15 between the pin 11 and the opening 12, it can be inclined to a small extent with respect to the standpipe 1, that is to say it is guided in the guide bush 5 without tilting. Finally, it is fixed with its piston rod 7 in the direction of the axis 3 relative to the standpipe 1, so that when the gas spring 2 is adjusted in length, the housing 4 of the gas spring 2 is moved out of the standpipe 1 or pushed into it by actuating an actuating pin 16. The actuating pin 16 is located on the end of the housing 4 of the gas spring 2 opposite the piston rod 7. A chair seat or a table top is also fastened here.

Das Standrohr 1 weist benachbart zum Ende 10 einen sich zu diesem hin leicht konisch verjüngenden Konusabschnitt 17 auf, mittels dessen eine Befestigung des Standrohres 1 in einer entsprechenden Konusbüchse eines Stuhlkreuzes od.dgl. möglich ist.The standpipe 1 has, adjacent to the end 10, a slightly conical tapered section 17, by means of which the standpipe 1 is fastened in a corresponding cone bushing of a chair cross or the like. is possible.

Soweit die primär als Stuhl-Säule, aber auch als Säule für Tische od.dgl. dienende Säule bisher beschrieben ist, ist sie allgemein bekannt, handelsüblich und beispielsweise in der DE-PS 19 31 012 (entsprechend US-PS 3 711 054) und der EP 0 133 524 B1 (entsprechend US-PS 4 979 718) oder der EP 0 366 889 B1 (entsprechend US-PS 4 969 619) beschrieben und dargestellt.So far the primarily as a chair column, but also as a column for tables or the like. serving column has been described so far, it is generally known, commercially available and for example in DE-PS 19 31 012 (corresponding to US Pat. No. 3,711,054) and EP 0 133 524 B1 (corresponding to US Pat. No. 4,979,718) or EP 0 366 889 B1 (corresponding to US Pat. No. 4,969,619).

Der gesamte Boden 9 des Standrohres 1 ist einstückig mit diesem ausgebildet, ist also aus dem eigentlichen Standrohr durch Verformung desselben gestaltet. An den Konusabschnitt 17 schließt sich ein gegenüber diesem eingeschnürter unterer Abschnitt 18 an, an dem der Boden 9 ausgebildet ist. Dieser weist eine zum Inneren des Standrohres 1 hin offene Rinne 19 auf, an die sich wiederum in Richtung zur Achse 3 hin ein im wesentlichen ebener und radial zur Achse 3 verlaufender Ringabschnitt 20 anschließt, der als Auflagefläche für das Axial-Wälzlager 8 dient und der von der Öffnung 12 durchsetzt wird.The entire base 9 of the standpipe 1 is formed in one piece with it, that is to say it is formed from the actual standpipe by deformation thereof. The cone section 17 is followed by a lower section 18 constricted with respect to the latter, on which the bottom 9 is formed. This has a channel 19 which is open towards the inside of the standpipe 1 and which is connected in turn in the direction of the axis 3 to a substantially flat and radially extending to the axis 3 ring portion 20, which serves as a bearing surface for the axial roller bearing 8 and the is penetrated by the opening 12.

Wie aus der Zeichnung hervorgeht, ist die Rinne 19 etwa teilkreisförmig ausgebildet und weist keine scharfen Kanten auf. Der Übergang 21 von der Rinne 19 zum Ringabschnitt 20 ist ebenfalls abgerundet, d.h. nicht scharfkantig. Um einen weichen Übergang von der Rinne 19 in den Ringabschnitt 20 zu erreichen, kann die zum Ringabschnitt 20 hin geneigte Flanke 22 der Rinne 19 abweichend vom Teilkreisquerschnitt deutlich zum Ringabschnitt 20 hin geneigt sein.As can be seen from the drawing, the channel 19 is approximately part-circular and has no sharp edges. The transition 21 from the channel 19 to the ring section 20 is also rounded, i.e. not sharp-edged. In order to achieve a smooth transition from the channel 19 into the ring section 20, the flank 22 of the channel 19 which is inclined towards the ring section 20 can be clearly inclined towards the ring section 20, deviating from the pitch circle cross section.

Der Innendurchmesser D des Abschnittes 18 des Standrohres 1 ist- wie die Zeichnung erkennen läßt - um ein Mehrfaches größer als der Durchmesser d der Kolbenstange 7. Auch der Durchmesser d' des Wälzlagers 8 ist deutlich kleiner als der Innendurchmesser D. Die mittlere Breite a der Rinne 19 radial zur Achse 3 liegt im Bereich von 4 bis 6 mm. Der Innendurchmesser D liegt im Bereich von 30 bis 50 mm. Der Durchmesser d der Kolbenstange 7 ist im Bereich von 10 mm. Für den Durchmesser d' gilt ein Bereich von 20 bis 30 mm.The inner diameter D of the section 18 of the standpipe 1 is - as the drawing shows - several times larger than the diameter d of the piston rod 7. Also the diameter d 'of the roller bearing 8 is 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 inner diameter D is in the range from 30 to 50 mm. The diameter d of the piston rod 7 is in the range of 10 mm. A range of 20 to 30 mm applies to the diameter d '.

Wie anschaulich aus Fig. 1 hervorgeht, ist der unter den Boden 9 ragende Bereich des Zapfens 11 mit der Beilagscheibe 13 und dem Feder-Sicherungsring 14 gleichermaßen versenkt im Boden 9 angeordnet, da die Rinne 19 nach unten über den Ringabschnitt 20 vorsteht. Der Feder-Sicherungsring 14 ist also geschützt innerhalb der Rinne 19 angeordnet. Er kann von hochflourigen Teppichen nicht abgezogen werden und die Verletzungsgefahr ist ausgeschlossen, wenn ein Benutzer mit dem Fuß den unteren Bereich des Standrohres 1 berührt.As can be clearly seen from FIG. 1, the area of the pin 11 projecting below the base 9 with the washer 13 and the spring retaining ring 14 is likewise arranged sunk in the base 9, since the groove 19 protrudes downward over the ring section 20. The spring retaining ring 14 is thus protected within the groove 19. It cannot be pulled off from high-flour carpets and the risk of injury is excluded if a user touches the lower area of the standpipe 1 with his foot.

Claims (8)

Längenverstellbare Säule für Stühle, Tische od.dgl., mit einem Standrohr (1) und mit einem konzentrisch zu einer gemeinsamen Mittel-Längs-Achse (3) hierin angeordneten, pneumatischen oder hydropneumatischen Längenverstellelement, dessen Gehäuse (4) im Standrohr (1) radial abgestützt und 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, dadurch gekennzeichnet, daß die Rinne (19) und der Ringabschnitt (20) einstückig aus dem Standrohr (1) ausgeformt sind.Length-adjustable column for chairs, tables or the like, with a standpipe (1) and with a pneumatic or hydropneumatic length adjustment element arranged concentrically to a common central longitudinal axis (3), the housing (4) of which in the standpipe (1) is supported radially and is displaceable in the direction of the axis (3) and its piston rod (7) is fixed in the region of its free end on a base (9) of the standpipe (1) in the direction of the axis (3), the base (9 ) in the area of the end (10) of the standpipe (1) facing away from the outlet of the housing (4) from the standpipe (1), a groove (19) projecting radially inward into the standpipe (1) and into the standpipe (1) ) and a ring section (20) coupled to the channel (19), on which the piston rod (7) is fixed, characterized in that the channel (19) and the ring section (20) are formed in one piece from the standpipe (1) . Säule nach Anspruch 1, dadurch gekennzeichnet, daß die Rinne (19) eine zum Ringabschnitt (20) hin geneigte Flanke (22) aufweist.Column according to claim 1, characterized in that the channel (19) has a flank (22) inclined towards the ring section (20). Säule nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Übergang (21) von der Rinne (19) in den Ringabschnitt (20) abgerundet ist.Column according to claim 1 or 2, characterized in that the transition (21) from the groove (19) into the ring section (20) is rounded. Säule nach einem der Ansprüche 1 bis 3, wobei sich die Kolbenstange (7) über ein Axial-Wälzlager (8) auf dem Boden (9) abstützt, dadurch gekennzeichnet, daß der Durchmesser (D') des Ringabschnitts (20) größer ist als der Durchmesser (d') des Wälzlagers (8).Column according to one of claims 1 to 3, wherein the piston rod (7) is supported on the floor (9) via an axial roller bearing (8), characterized in that the diameter (D ') of the ring section (20) is greater than the diameter (d ') of the rolling bearing (8). Standrohr für eine längenverstellbare Säule für Stühle, Tische od.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 (3) 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, dadurch gekennzeichnet, daß die Rinne (19) und der Ringabschnitt (20) einstückig aus dem Standrohr (1) ausgeformt sind.Standpipe for a length-adjustable column for chairs, tables or the like. In the concentric to a common central longitudinal axis (3), a pneumatic or hydropneumatic length adjustment element can be arranged, the housing (4) in the standpipe (1) is supported radially and guided in the direction of the axis (3) and its piston rod (7) can be fixed in the region of its free end on a base (9) of the standpipe (1) in the direction of the axis (3), the base (9) in the region of the the outlet of the housing (4) facing away from the standpipe (1) End (10) of the standpipe (1) has a groove (19) projecting radially inward into the standpipe (1), open into the standpipe (1) and a ring section (20) coupled to the groove (19), on which the piston rod (7) is fixed, characterized in that the groove (19) and the ring section (20) are formed in one piece from the standpipe (1). Standrohr nach Anspruch 5, dadurch gekennzeichnet, daß die Rinne (19) eine zum Ringabschnitt (20) hin geneigte Flanke (22) aufweist.Standpipe according to claim 5, characterized in that the channel (19) has a flank (22) inclined towards the ring section (20). Standrohr nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß der Übergang (21) von der Rinne (19) in den Ringabschnitt (20) abgerundet ist.Standpipe according to claim 5 or 6, characterized in that the transition (21) from the groove (19) into the ring section (20) is rounded. Standrohr nach einem der Ansprüche 5 bis 7, für eine Säule, bei der sich die Kolbenstange (7) in ein Axial-Wälzlager (8) auf dem Boden (9) abstützt, dadurch gekennzeichnet, daß der Durchmesser (D') des Ringabschnitts (20) größer ist als der Durchmesser (d') des Wälzlagers (8).Standpipe according to one of claims 5 to 7, for a column in which the piston rod (7) is supported in an axial roller bearing (8) on the floor (9), characterized in that the diameter (D ') of the ring section ( 20) is larger than the diameter (d ') of the roller bearing (8).
EP96105026A 1995-05-30 1996-03-29 A length adjustable column for chairs, tables or the like, and supporting tube therefor Expired - Lifetime EP0745341B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29508915U DE29508915U1 (en) 1995-05-30 1995-05-30 Adjustable column for chairs, tables or the like. and standpipe for this
DE29508915U 1995-05-30

Publications (2)

Publication Number Publication Date
EP0745341A1 true EP0745341A1 (en) 1996-12-04
EP0745341B1 EP0745341B1 (en) 2001-06-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96105026A Expired - Lifetime EP0745341B1 (en) 1995-05-30 1996-03-29 A length adjustable column for chairs, tables or the like, and supporting tube therefor

Country Status (6)

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EP (1) EP0745341B1 (en)
JP (1) JP3848400B2 (en)
KR (1) KR100374068B1 (en)
CN (1) CN1109527C (en)
DE (2) DE29508915U1 (en)
TW (1) TW300426U (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101135095B (en) * 2006-08-31 2011-02-02 海尔集团公司 Full-automatic washing machine and washing method thereof
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0551604A1 (en) * 1992-01-14 1993-07-21 SUSPA COMPART Aktiengesellschaft Adjustable column for tables, chairs or the like
WO1995032872A1 (en) * 1994-05-26 1995-12-07 Steelcase Inc. Hydraulic chair height adjustment mechanism

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH105302A (en) * 1923-02-19 1924-07-01 Carel Olland Willem Adjustable liquid damper.
DE1529723B2 (en) * 1966-12-02 1977-03-10 Stabilus Gmbh, 5400 Koblenz SHOCK ABSORBER FOR HEIGHT-ADJUSTABLE FURNITURE PARTS
DE7623283U1 (en) * 1976-07-23 1977-01-13 Stabilus Gmbh, 5400 Koblenz GUIDE COLUMN FOR CONTINUOUSLY HEIGHT ADJUSTMENT OF CHAIR SEATS
US4640484A (en) * 1985-05-06 1987-02-03 Fichtel & Sachs Industries Support column with gravity dependent retention means
DE3833959A1 (en) * 1988-10-06 1990-04-12 Bauer Fritz & Soehne Ohg LENGTH ADJUSTABLE COLUMN FOR CHAIRS, TABLES OR THE LIKE
IL98036A0 (en) * 1991-05-02 1992-06-21 Yoav Cohen Plastic stand pipe support for load-bearing adjustable piston
DE4129089A1 (en) * 1991-09-02 1993-03-04 Suspa Compart Ag Support column for chair or tables adjustable in length - has tubular upright with concentric axle inside it, and length adjustment inside housing, with piston rod and bearing discs.
DE4129513A1 (en) * 1991-09-05 1993-03-11 Schaeffler Waelzlager Kg SPRING BEARING
DE4209218C2 (en) * 1992-03-21 1995-03-16 Fichtel & Sachs Ag Vibration damper or suspension in telescopic design
DE9208620U1 (en) * 1992-06-26 1992-09-03 Fichtel & Sachs Ag, 8720 Schweinfurt Pin joint for a vibration damper
DE4227553A1 (en) * 1992-08-20 1994-02-24 Stabilus Gmbh Height adjustable support esp. for chair seat - has foot, upright, guide surface, support in bottom of upright.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0551604A1 (en) * 1992-01-14 1993-07-21 SUSPA COMPART Aktiengesellschaft Adjustable column for tables, chairs or the like
WO1995032872A1 (en) * 1994-05-26 1995-12-07 Steelcase Inc. Hydraulic chair height adjustment mechanism

Also Published As

Publication number Publication date
KR960040258A (en) 1996-12-17
JPH09151977A (en) 1997-06-10
KR100374068B1 (en) 2003-09-22
CN1142343A (en) 1997-02-12
DE59607065D1 (en) 2001-07-19
CN1109527C (en) 2003-05-28
JP3848400B2 (en) 2006-11-22
TW300426U (en) 1997-03-11
DE29508915U1 (en) 1996-10-02
EP0745341B1 (en) 2001-06-13

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