[go: up one dir, main page]

EP0144577B1 - Supporting device for seating furniture with an adjustably inclinable backrest support and an adjustably inclinable seat - Google Patents

Supporting device for seating furniture with an adjustably inclinable backrest support and an adjustably inclinable seat Download PDF

Info

Publication number
EP0144577B1
EP0144577B1 EP84111276A EP84111276A EP0144577B1 EP 0144577 B1 EP0144577 B1 EP 0144577B1 EP 84111276 A EP84111276 A EP 84111276A EP 84111276 A EP84111276 A EP 84111276A EP 0144577 B1 EP0144577 B1 EP 0144577B1
Authority
EP
European Patent Office
Prior art keywords
gas spring
seat
lever
actuating
adjustable
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
Application number
EP84111276A
Other languages
German (de)
French (fr)
Other versions
EP0144577A1 (en
Inventor
Hans-Peter Bauer
Hans Jürgen Bauer
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.)
Fritz Bauer and Sohne OHG
Original Assignee
Fritz Bauer and Sohne OHG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fritz Bauer and Sohne OHG filed Critical Fritz Bauer and Sohne OHG
Priority to AT84111276T priority Critical patent/ATE24103T1/en
Publication of EP0144577A1 publication Critical patent/EP0144577A1/en
Application granted granted Critical
Publication of EP0144577B1 publication Critical patent/EP0144577B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/0244—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by fluid means

Definitions

  • the invention relates to a carrying device according to the preamble of claim 1.
  • a guide with various guideways is provided as the guideway, in which a positive guidance and a fixing of the actuating lever in a deflected position is possible.
  • the actuating lever can be pivoted horizontally in one guideway in one direction or the other, whereby an actuating pin of a gas spring is inserted into each of these. In this way, a change in the inclination of the seat or the backrest can be carried out separately.
  • the actuating lever In order to make the seat and the backrest freely rockable, that is to say to release the locking by means of the corresponding gas spring, the actuating lever can be pivoted upwards in a vertical guideway of the link and can be elastically engaged. In this position, the corresponding sections of a ring formed on the actuating lever and abutting the intermediate levers push the two intermediate levers apart like a scissors, as a result of which both actuating pins are pushed into the respective gas spring. Since the operating lever is locked in this position, the operating pins remain open so that the seat and backrest can rock freely against the gas pressure in the gas spring. Since the ring formed on the actuating lever surrounds the chair column, the chair column cannot be adjusted by means of this actuating lever. In a practical version, a separate operating lever is provided for this. Furthermore, it is not possible to lock the actuating pin in the inserted position only with the backrest gas spring or with the seat gas spring.
  • the invention has for its object to provide a support device of the generic type, in which the actuating pins of the backrest gas spring and seat gas spring can each be separately locked with a simplified structure.
  • the essence of the invention is that the actuating lever itself is not locked in the position in which one or the other actuating pin is locked.
  • the actuating lever is rather used only for pivoting the intermediate lever, which in its fully deflected position then latches itself in this deflected position by means of the respective latching lever, in which case the associated actuating pin of a gas spring is then engaged.
  • This configuration also makes it possible to use the actuating lever for adjusting the length of the chair column, since it is always available; Even if the backrest gas spring and / or seat gas spring are set to rocking operation, the actuating lever is available for further functions, for example the height adjustment of the chair column.
  • the measures according to claim 2 result in that for the length adjustment of the backrest gas spring or seat gas spring, the actuating lever is only deflected in the corresponding horizontal direction, the length adjustment not causing the deflection to take place as far as to lock the intermediate lever.
  • the latching is then released by a simple upward movement of the corresponding actuating section of the actuating lever against the latching lever or latches.
  • a support plate 2 for a seat 3 of an office chair is mounted on a housing-like support device 1 so that it can be tilted about a pivot axis 4.
  • a backrest support 5 is furthermore adjustable in its inclination about a pivot axis 6.
  • the pivot axes 4, 6 are arranged parallel to one another and run perpendicular to the main central plane of the office chair.
  • the support device 1 is supported on a height-adjustable chair column 7, which is essentially formed by a length-adjustable gas spring, which in turn is supported in a guide tube connected or connectable to a foot frame.
  • the structure and mode of operation of these commercially available gas springs is, for example, in DE-PS 1812282 (corresponding to US-PS 3656593) shown and described.
  • the design of such a commercially available chair column with guide tube is known for example from DE-PS 1931 012 (corresponding to US-PS 3711 054).
  • the gas spring serving as a chair column 7 is provided at its upper end with a conical holding section 8 which is held in a corresponding conical receptacle 9 of the carrying device 1.
  • the chair column 7 protrudes vertically downward from the support device 1.
  • the support plate 2 for the seat 3 can be pivoted about the pivot axis 4 by means of a seat gas spring 12.
  • the free end of the piston rod 13 of the seat gas spring 12 is connected by means of a swivel joint 14 to the support plate 2 in its front region, that is to say the region facing away from the backrest support 5.
  • the other end of the seat gas spring 12 is pivotally connected to the support device 1 by means of a ball joint 15, so that the essentially cylindrical housing 16 of the seat gas spring 12 can only be pivoted relative to the support device 1, but cannot be displaced in its own longitudinal direction.
  • the seat gas spring 12 is adjustable in length and of the same basic structure as the chair column 7, i.e.
  • DE-PS 1812282 corresponding to US-PS 3,656,593
  • An actuating pin 18 which can be displaced in the direction of the central longitudinal axis 17 of the seat gas spring 12 for triggering or ending a length adjustment of the seat gas spring 12 projects through the ball joint 15 into the carrying device 1.
  • a backrest gas spring 19 is provided, which corresponds in structure and function to the seat gas spring 12.
  • the backrest gas spring 19 is connected to the backrest support at a sufficient distance from the pivot axis 6 by means of a swivel joint 21 attached to the free end of its piston rod 20.
  • Its cylindrical housing 22 is pivotally connected to the support device 1 at the opposite end by means of a ball joint 23, but is non-displaceably connected in the direction of its central longitudinal axis 24.
  • An actuating pin 25 for the length adjustment of the backrest gas spring 19 projects into the carrying device.
  • the three central-longitudinal axes 10, 17, 24 rise in a common plane that coincides with the main central plane of the office chair, as already mentioned.
  • an actuating lever 26 is provided, the central longitudinal axis 27 of which is approximately perpendicular to the three axes 10, 17, 24, ie approximately perpendicular to the main symmetry plane of the Chair runs.
  • a handle 28 attached to the free outer end of the actuating lever 26 is thus arranged approximately laterally below the support plate 2 or the seat 3, so that the actuating lever 26 can be comfortably reached and operated by a person sitting on a chair.
  • the actuating lever 26 is pivotally supported in the carrying device 1 by means of a ball joint 29.
  • an actuating section 30 of the actuating lever 26 projects beyond the ball joint 29 into the carrying device 1.
  • the actuating lever 26 is thus mounted in the area between the actuating pins 11, 18, 25 and the outer end formed by the handle 28.
  • the actuating section 30 has at its free end a tapered guide section 31 which is guided on a guide track 32.
  • This guideway is essentially horizontal, as indicated in FIG. 2, and has a central track section 33, which is assigned to the actuating pin 11 of the chair column 7 and extends downward. If the actuating lever 26 is pivoted from its central position shown in the drawing in a vertical plane in such a way that the handle 28 is pulled up and thus the guide section 31 is inserted into the track section 33, then the actuating section 30 of the actuating lever 26 is pivoted downward, whereby the actuating pin 11 of the chair column 7 is pushed into the latter, whereby the internal actuating valve is opened.
  • the chair column 7 can now be lengthened or shortened in the usual known manner, as a result of which the support plate 2 with the seat 3 is adjusted in its height.
  • mirror levers 34, 35 are pivotably mounted about their lower semicircular ends 36, 37, namely to the actuating pins 18 and 25 of the seat gas spring 12 and the other Backrest gas spring 19 out.
  • Their actuating pins 18 and 25 rest on middle, relative to the actuating pins 18, 25 outwardly bent contact surfaces 38, 39 of the intermediate levers 34, 35.
  • the actuating pins 18 and 25 are also in different pivoting positions of the seat gas spring 12 or backrest gas spring 19 on the contact surfaces 38 and 39, without any displacement due to the different pivoting positions, ie actuation of the actuating pins 18 or 25 is effected.
  • the curvature of the contact surfaces 38, 39 thus runs approximately approximately concentrically with the respective ball joints 17 and 23, respectively.
  • the upper free ends of the intermediate lever 34, 35 are formed by the contact surfaces 38, 39 each cranked inward and upward latching sections 40, 41, which are arranged on both sides of the actuating section 30 of the actuating lever 26 in the rest position and opposite the latter in the rest position have little play. If the operating lever 26 about in the horizontal - relative to the support plate 2 of the seat 3 to the front or back - then either the intermediate lever 34 with appropriate actuation of the actuating pin 18 of the seat gas spring 12 or the intermediate lever 35 with the corresponding actuation of the actuating pin 25 of the backrest gas spring 19 from it Rest position swung outwards.
  • either the inclination of the support plate 2 with the seat 3 or the inclination of the backrest support 5 can be changed in each case about the pivot axes 4 or 6.
  • the handle 28 of the actuating lever 26 is released by the operator, it is shifted into its central position by the actuating pin 18 or 25 via the corresponding intermediate lever 34 or 35.
  • the valve of the corresponding gas spring actuated by the respective actuating pin 18 or 25 is then closed.
  • the support plate 2 or the backrest support 5 are again fixed in a new inclination position.
  • the horizontal pivoting movements of the actuating section 30 of the actuating lever 26 the latter is guided on track sections 42 and 43 of the guide track 32 formed on both sides of the track section 33 which is directed approximately vertically downward.
  • two crossed locking levers 44, 45 are arranged in the carrying device 1, which are pivotably supported in the carrying device 1 by means of their upper outer, curved ends 46, 47. They are pressed down by means of a compression spring 48 arranged concentrically to the central longitudinal axis 10, so that their lower, approximately horizontally arranged and slightly upwardly bent ends 49, 50 bear against the latching sections 40 and 41, respectively.
  • the crossing point of the two locking levers 44, 45 is located directly above the actuating section 30 of the actuating lever 26.
  • the actuating pin 18 is to be locked in its position pushed into the seat gas spring 12, that is to say if the inner valve of the seat gas spring 12 is to be constantly open, then the actuating lever 26 is pivoted horizontally so far that the latching section 40 of the intermediate lever engages with the cranked end 49 of the locking lever 44 is brought.
  • the locking lever 44 is pressed down by the compression spring 48 and sits with its cranked end 49 on and behind the locking section 40 of the intermediate lever 34.
  • the actuating pin 25 of the backrest gas spring 19 can only be inserted for an inclination adjustment of the backrest support 5 or alternatively be locked in the inserted position, in which the lower cranked end 50 of the locking lever 45 then sits on and behind the locking section 41 of the intermediate lever 35.
  • the handle 28 of the actuating lever 26 is pressed down in the central position, as a result of which its actuating section 30 is pushed upward against the crossing region of the latching levers 44, 45 is pressed.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Sliding-Contact Bearings (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

A height-adjustable office chair having an incline-adjustable seat and back includes a bearing device to which is connected a length-adjustable seat pneumatic spring connected by an articulated joint to the seat structure, a length-adjustable back-rest pneumatic spring connected to the back by an articulated joint, and a height-adjustable pneumatic spring. The actuating rods of all three of these pneumatic springs are in the bearing device and are controlled by an actuating lever movable both horizontally and vertically. Vertical movement of the actuating lever controls the height-adjustable pneumatic spring. Horizontal movement of the actuating lever serves to control one of two intermediate levers which are respectively arrestable and lockable by a detent lever located above the height-adjustable pneumatic spring.

Description

Die Erfindung betrifft eine Trageinrichtung nach dem Oberbegriff des Anspruches 1.The invention relates to a carrying device according to the preamble of claim 1.

Bei einer derartigen aus der DE-OS 29 29 428 (entsprechend EP-PS 0022933) bekannten Trageinrichtung ist als Führungsbahn eine Kulisse mit verschiedenen Führungsbahnen vorgesehen, in denen eine Zwangsführung und eine Festlegung des Betätigungshebels in einer ausgelenkten Stellung möglich ist. So kann der Betätigungshebel horizontal in einer Führungsbahn in der einen oder anderen Richtung verschwenkt werden, wodurch jeweils ein Betätigungsstift einer Gasfeder in diese eingeschoben wird. Hierdurch kann also jeweils gesondert eine Veränderung der Neigung des Sitzes bzw. der Rückenlehne durchgeführt werden. Um den Sitz und die Rückenlehne frei wippbar zu machen, um also die Arretierung durch die entsprechende Gasfeder aufzuheben, kann der Betätigungshebel in einer vertikalen Führungsbahn der Kulisse nach oben geschwenkt und elastisch eingerastet werden. In dieser Stellung schieben die entsprechenden Abschnitte eines am Betätigungshebel ausgebildeten und an den Zwischenhebeln anliegenden Ringes die beiden Zwischenhebel scherenartig auseinander, wodurch beide Betätigungsstifte in die jeweilige Gasfeder eingeschoben werden. Da der Betätigungshebel in dieser Stellung eingerastet wird, bleiben die Betätigungsstifte geöffnet, so dass Sitz und Rückenlehne frei - gegen den jeweiligen Gasdruck in der Gasfeder - wippen können. Da der am Betätigungshebel ausgebildete Ring die Stuhlsäule umgibt, kann die Stuhlsäule nicht mittels dieses Betätigungshebels verstellt werden. Bei einer praktischenAusführung ist hierfür ein gesonderter Betätigungshebel vorgesehen. Weiterhin ist es nicht möglich, wahlweise nur bei der Rückenlehnengasfeder oder bei der Sitzgasfeder den Betätigungsstift in der eingeschobenen Stellung zu arretieren.In such a support device known from DE-OS 29 29 428 (corresponding to EP-PS 0022933), a guide with various guideways is provided as the guideway, in which a positive guidance and a fixing of the actuating lever in a deflected position is possible. Thus, the actuating lever can be pivoted horizontally in one guideway in one direction or the other, whereby an actuating pin of a gas spring is inserted into each of these. In this way, a change in the inclination of the seat or the backrest can be carried out separately. In order to make the seat and the backrest freely rockable, that is to say to release the locking by means of the corresponding gas spring, the actuating lever can be pivoted upwards in a vertical guideway of the link and can be elastically engaged. In this position, the corresponding sections of a ring formed on the actuating lever and abutting the intermediate levers push the two intermediate levers apart like a scissors, as a result of which both actuating pins are pushed into the respective gas spring. Since the operating lever is locked in this position, the operating pins remain open so that the seat and backrest can rock freely against the gas pressure in the gas spring. Since the ring formed on the actuating lever surrounds the chair column, the chair column cannot be adjusted by means of this actuating lever. In a practical version, a separate operating lever is provided for this. Furthermore, it is not possible to lock the actuating pin in the inserted position only with the backrest gas spring or with the seat gas spring.

Aus der US-PS 3 837 704 ist es bei einem Stuhl mit einer durch eine längenverstellbare Gasfeder gebildeten Stuhlsäule und einer ebenfalls mittels einer Rückenlehnengasfeder neigungsverstellbaren Rückenlehne bekannt, mittels nur eines vertikal und horizontal verschwenkbaren Bedienungshebels wahlweise die Längenverstellung der Stuhlsäule oder die Längenverstellung der Rükkenlehnengasfeder und damit die Neigungsverstellung der Rückenlehne auszulösen. Der Sitz ist hierbei nicht in seiner Neigung verstellbar. Eine Arretierung des Betätigungsstiftes in seiner eingeschobenen Stellung ist nicht vorgesehen.From US-PS 3 837 704 it is known in a chair with a chair column formed by a length-adjustable gas spring and a backrest also inclinable by means of a backrest gas spring, by means of only one vertically and horizontally pivotable operating lever either the length adjustment of the chair column or the length adjustment of the backrest gas spring and thus triggering the inclination adjustment of the backrest. The inclination of the seat is not adjustable. A locking of the actuating pin in its inserted position is not provided.

Eine ähnliche Lösung ist aus der CH-PS 563 753 bekannt. Der Erfindung liegt die Aufgabe zugrunde, eine Trageinrichtung der gattungsgemässen Art zu schaffen, bei der bei vereinfachtem Aufbau die Betätigungsstifte von Rückenlehnengasfeder und Sitzgasfeder jeweils gesondert arretierbar sind.A similar solution is known from CH-PS 563 753. The invention has for its object to provide a support device of the generic type, in which the actuating pins of the backrest gas spring and seat gas spring can each be separately locked with a simplified structure.

Diese Aufgabe wird erfindungsgemäss durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.According to the invention, this object is achieved by the characterizing features of claim 1.

Der Kern der Erfindung liegt darin, dass nicht der Betätigungshebel selber in der Stellung arretiert wird, in der der eine oder andere Betätigungsstift arretiert ist. Der Betätigungshebel wird vielmehr nur zum Verschwenken der Zwischenhebel benutzt, die in ihrer völlig ausgelenkten Stellung dann selber mittels des jeweiligen Rasthebels in dieser ausgelenkten Stellung einrasten, in der also dann der zugeordnete Betätigungsstift einer Gasfeder eingerastet ist. Diese Ausgestaltung ermöglicht es auch, den Betätigungshebel zur Längenverstellung der Stuhlsäule einzusetzen, da er ja ständig zur Verfügung steht; auch wenn Rückenlehnengasfeder und/oder Sitzgasfeder auf Wipp-Betrieb gestellt sind, steht der Betätigungshebel für weitere Funktionen, beispielsweise die Höhenverstellung der Stuhlsäule zur Verfügung.The essence of the invention is that the actuating lever itself is not locked in the position in which one or the other actuating pin is locked. The actuating lever is rather used only for pivoting the intermediate lever, which in its fully deflected position then latches itself in this deflected position by means of the respective latching lever, in which case the associated actuating pin of a gas spring is then engaged. This configuration also makes it possible to use the actuating lever for adjusting the length of the chair column, since it is always available; Even if the backrest gas spring and / or seat gas spring are set to rocking operation, the actuating lever is available for further functions, for example the height adjustment of the chair column.

Besondere Ausführungsarten der Erfindung sind in den abhängigen Ansprüchen 2-5 angegeben.Particular embodiments of the invention are specified in dependent claims 2-5.

Die Massnahmen nach Anspruch 2 führen dazu, dass zur Längenverstellung von Rückenlehnengasfeder oder Sitzgasfeder der Betätigungshebel lediglich in der entsprechenden Horizontalen ausgelenkt wird, wobei zur Längenverstellung die Auslenkung nicht so weit erfolgt wie zur einrastenden Festlegung des Zwischenhebels. Die Lösung der Einrastung erfolgt dann durch eine einfache Aufwärtsbewegung des entsprechenden Betätigungsabschnittes des Betätigungshebels gegen den oder die Rasthebel.The measures according to claim 2 result in that for the length adjustment of the backrest gas spring or seat gas spring, the actuating lever is only deflected in the corresponding horizontal direction, the length adjustment not causing the deflection to take place as far as to lock the intermediate lever. The latching is then released by a simple upward movement of the corresponding actuating section of the actuating lever against the latching lever or latches.

Die erfindungsgemässen Massnahmen ermöglichen es, den Betätigungshebel selber in an sich bekannter Weise entsprechend Anspruch 3 auszugestalten.The measures according to the invention make it possible to design the actuating lever itself in a manner known per se in accordance with claim 3.

Weitere Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels anhand der Zeichnung. Es zeigt

  • Fig. 1 eine Trageinrichtung gemäss der Erfindung mit neigungsverstellbarer Stützplatte für einen Sitz und neigungsverstellbarer Rückenlehne,
  • Fig. 2 einen Teilausschnitt aus der Trageinrichtung in vergrössertem Massstab,
  • Fig. 3 einen Schnitt durch die Trageinrichtung gemäss der Schnittlinie 111-111 in Fig. 2 und
  • Fig. 4 einen Teilausschnitt aus der Trageinrichtung entsprechend der Darstellung in Fig. 2 in verstelltem Zustand.
Further advantages of the invention result from the following description of an exemplary embodiment with reference to the drawing. It shows
  • 1 is a support device according to the invention with an inclinable support plate for a seat and an inclinable backrest,
  • 2 is a partial section of the support device on an enlarged scale,
  • Fig. 3 shows a section through the support device according to section line 111-111 in Fig. 2 and
  • Fig. 4 is a partial section of the support device according to the illustration in Fig. 2 in the adjusted state.

Auf einer gehäuseartig ausgebildeten Trageinrichtung 1 ist eine Stützplatte 2 für einen Sitz 3 eines Bürostuhls um eine Schwenkachse 4 neigungsverstellbar gelagert. An der Trageinrichtung 1 ist weiterhin ein Rückenlehnenträger 5 um eine Schwenkachse 6 in seiner Neigung verstellbar gelagert. Die Schwenkachsen 4, 6 sind parallel zueinander angeordnet und verlaufen senkrecht zur Hauptmittelebene des Bürostuhls. Die Trageinrichtung 1 ist auf einer höhenverstellbaren Stuhlsäule 7 abgestützt, die im wesentlichen durch eine längenverstellbare Gasfeder gebildet ist, die wiederum in einem mit einem Fussgestellt verbundenen bzw. verbindbaren Führungsrohr abgestützt ist.A support plate 2 for a seat 3 of an office chair is mounted on a housing-like support device 1 so that it can be tilted about a pivot axis 4. On the support device 1, a backrest support 5 is furthermore adjustable in its inclination about a pivot axis 6. The pivot axes 4, 6 are arranged parallel to one another and run perpendicular to the main central plane of the office chair. The support device 1 is supported on a height-adjustable chair column 7, which is essentially formed by a length-adjustable gas spring, which in turn is supported in a guide tube connected or connectable to a foot frame.

Aufbau und Wirkungsweise dieser handelsüblichen Gasfedern ist beispielsweise in der DE-PS 1812282 (entsprechend US-PS 3656593) dargestellt und beschrieben. Die Ausgestaltung einer solchen ebenfalls handelsüblichen Stuhlsäule mit Führungsrohr ist beispielsweise aus der DE-PS 1931 012 (entsprechend US-PS 3711 054) bekannt. Die als Stuhlsäule 7 dienende Gasfeder ist an ihrem oberen Ende mit einem konusförmigen Halteabschnitt 8 versehen, der in einer entsprechenden konusförmigen Aufnahme 9 der Trageinrichtung 1 gehalten ist. Die Stuhlsäule 7 ragt senkrecht nach unten aus der Trageinrichtung 1 heraus. Aus dem Halteabschnitt 8 ragt koaxial zur Mittel-Längs-Achse 10 der Stuhlsäule 7 nach oben ein in Achsrichtung verschiebbarer Betätigungsstift 11 für die Längenverstellung der Stuhlsäule 7 heraus.The structure and mode of operation of these commercially available gas springs is, for example, in DE-PS 1812282 (corresponding to US-PS 3656593) shown and described. The design of such a commercially available chair column with guide tube is known for example from DE-PS 1931 012 (corresponding to US-PS 3711 054). The gas spring serving as a chair column 7 is provided at its upper end with a conical holding section 8 which is held in a corresponding conical receptacle 9 of the carrying device 1. The chair column 7 protrudes vertically downward from the support device 1. An actuating pin 11, which is displaceable in the axial direction and protrudes from the holding section 8, coaxially to the central longitudinal axis 10 of the chair column 7, for the length adjustment of the chair column 7.

Die Stützplatte 2 für den Sitz 3 ist mittels einer Sitzgasfeder 12 um die Schwenkachse 4 verschwenkbar. Das freie Ende der Kolbenstange 13 der Sitzgasfeder 12 ist hierzu mittels eines Schwenkgelenks 14 mit der Stützplatte 2 in deren vorderen, also dem Rückenlehnenträger 5 abgewandten Bereich verbunden. Das andere Ende der Sitzgasfeder 12 ist mittels eines Kugelgelenks 15 schwenkbar mit der Trageinrichtung 1 verbunden, so dass das im wesentlichen zylindrische Gehäuse 16 der Sitzgasfeder 12 gegenüber der Trageinrichtung 1 nur verschwenkbar, aber nicht in seiner eigenen Längsrichtung verschiebbar ist. Die Sitzgasfeder 12 ist längenverstellbar und vom gleichen Grundaufbau wie die Stuhlsäule 7, d.h. ihr Aufbau entspricht ebenfalls der DE-PS 1812282 (entsprechend US-PS 3 656 593). Ein in Richtung der Mittel-Längs-Achse 17 der Sitzgasfeder 12 verschiebbarer Betätigungsstift 18 zur Auslösung bzw. Beendigung einer Längenverstellung der Sitzgasfeder 12 ragt durch das Kugelgelenk 15 hindurch in die Trageinrichtung 1 hinein.The support plate 2 for the seat 3 can be pivoted about the pivot axis 4 by means of a seat gas spring 12. For this purpose, the free end of the piston rod 13 of the seat gas spring 12 is connected by means of a swivel joint 14 to the support plate 2 in its front region, that is to say the region facing away from the backrest support 5. The other end of the seat gas spring 12 is pivotally connected to the support device 1 by means of a ball joint 15, so that the essentially cylindrical housing 16 of the seat gas spring 12 can only be pivoted relative to the support device 1, but cannot be displaced in its own longitudinal direction. The seat gas spring 12 is adjustable in length and of the same basic structure as the chair column 7, i.e. their structure also corresponds to DE-PS 1812282 (corresponding to US-PS 3,656,593). An actuating pin 18 which can be displaced in the direction of the central longitudinal axis 17 of the seat gas spring 12 for triggering or ending a length adjustment of the seat gas spring 12 projects through the ball joint 15 into the carrying device 1.

Für die Neigungsverstellung des Rückenlehnenträgers 5 ist eine Rückenlehnengasfeder 19 vorgesehen, die in ihrem Aufbau und in ihrer Funktion der Sitzgasfeder 12 entspricht. Die Rückenlehnengasfeder 19 ist mittels eines am freien Ende ihrer Kolbenstange 20 angebrachten Schwenkgelenks 21 mit dem Rückenlehnenträger in ausreichendem Abstand von der Schwenkachse 6 verbunden. Ihr zylindrisches Gehäuse 22 ist am gegenüberliegenden Ende mittels eines Kugelgelenks 23 mit der Trageinrichtung 1 schwenkbar aber in Richtung ihrer Mittel-Längs-Achse 24 unverschiebbar verbunden. Ein Betätigungsstift 25 für die Längenverstellung der Rückenlehnengasfeder 19 ragt in die Trageinrichtung hinein. Die drei Mittel-Längs-Achsen 10,17,24 tiegen in einergemeinsamen Ebene, die mit der bereits erwähnten Haupt-Mittelebene des Bürostuhls zusammenfällt.For the inclination adjustment of the backrest support 5, a backrest gas spring 19 is provided, which corresponds in structure and function to the seat gas spring 12. The backrest gas spring 19 is connected to the backrest support at a sufficient distance from the pivot axis 6 by means of a swivel joint 21 attached to the free end of its piston rod 20. Its cylindrical housing 22 is pivotally connected to the support device 1 at the opposite end by means of a ball joint 23, but is non-displaceably connected in the direction of its central longitudinal axis 24. An actuating pin 25 for the length adjustment of the backrest gas spring 19 projects into the carrying device. The three central-longitudinal axes 10, 17, 24 rise in a common plane that coincides with the main central plane of the office chair, as already mentioned.

Zur mittelbaren bzw. unmittelbaren Betätigung der Betätigungsstifte 11, 18, 25 ist ein Betätigungshebel 26 vorgesehen, dessen Mittel-Längs-Achse 27 etwa senkrecht zu den drei Achsen 10, 17, 24, also etwa senkrecht zur mehrfach erwähnten Haupt-Symmetrie-Ebene des Stuhles verläuft. Ein am freien äusseren Ende des Betätigungshebels 26 angebrachter Griff 28 ist also etwa seitlich unterhalb der Stützplatte 2 bzw. des Sitzes 3 angeordnet, so dass der Betätigungshebel 26 von einer auf einem Stuhl sitzenden Person bequem erreicht und bedient werden kann. Der Betätigungshebel 26 ist mittels Kugelgelenks 29 allseitig schwenkbar in der Trageinrichtung 1 gelagert. Zur mittelbaren bzw. unmittelbaren Betätigung der Betätigungsstifte 11, 18, 25 ragt ein Betätigungsabschnitt 30 des Betätigungshebels 26 über das Kugelgelenk 29 hinaus in die Trageinrichtung 1 hinein. Der Betätigungshebel 26 ist also im Bereich zwischen den Betätigungsstiften 11, 18, 25 und dem durch den Griff 28 gebildeten äusseren Ende gelagert.For the indirect or direct actuation of the actuating pins 11, 18, 25, an actuating lever 26 is provided, the central longitudinal axis 27 of which is approximately perpendicular to the three axes 10, 17, 24, ie approximately perpendicular to the main symmetry plane of the Chair runs. A handle 28 attached to the free outer end of the actuating lever 26 is thus arranged approximately laterally below the support plate 2 or the seat 3, so that the actuating lever 26 can be comfortably reached and operated by a person sitting on a chair. The actuating lever 26 is pivotally supported in the carrying device 1 by means of a ball joint 29. For the indirect or direct actuation of the actuating pins 11, 18, 25, an actuating section 30 of the actuating lever 26 projects beyond the ball joint 29 into the carrying device 1. The actuating lever 26 is thus mounted in the area between the actuating pins 11, 18, 25 and the outer end formed by the handle 28.

Der Betätigungsabschnitt 30 weist an seinem freien Ende einen verjüngt ausgebildeten Führungsabschnitt31 auf, der auf einer Führungsbahn 32 geführt wird. Diese Führungsbahn ist im wesentlichen-wie in Fig. 2 angedeutet ist- horizontal ausgebildet und weist einen mittleren, dem Betätigungsstift 11 der Stuhlsäule 7 zugeordneten sich nach unten erstreckenden Bahnabschnitt 33 auf. Wenn der Betätigungshebel 26 aus seiner in der Zeichnung dargestellten Mittellage derart in einer Vertikalebene verschwenkt wird, dass der Griff 28 nach oben gezogen und damit der Führungsabschnitt 31 in den Bahnabschnitt 33 hineingeführt wird, dann wird also der Betätigungsabschnitt 30 des Betätigungshebels 26 nach unten geschwenkt, wodurch der Betätigungsstift 11 der Stuhlsäule 7 in letztere hineingeschoben wird, wodurch deren internes Betätigungsventil geöffnet wird. Die Stuhlsäule 7 kann jetzt in der üblichen bekannten Weise verlängert oder verkürzt werden, wodurch entsprechend die Stützplatte 2 mit dem Sitz 3 in ihrer Höhenlage verstellt wird.The actuating section 30 has at its free end a tapered guide section 31 which is guided on a guide track 32. This guideway is essentially horizontal, as indicated in FIG. 2, and has a central track section 33, which is assigned to the actuating pin 11 of the chair column 7 and extends downward. If the actuating lever 26 is pivoted from its central position shown in the drawing in a vertical plane in such a way that the handle 28 is pulled up and thus the guide section 31 is inserted into the track section 33, then the actuating section 30 of the actuating lever 26 is pivoted downward, whereby the actuating pin 11 of the chair column 7 is pushed into the latter, whereby the internal actuating valve is opened. The chair column 7 can now be lengthened or shortened in the usual known manner, as a result of which the support plate 2 with the seat 3 is adjusted in its height.

Im unteren Bereich der Trageinrichtung sind beiderseits der Aufnahme 9, also auch beiderseits der Stuhlsäule 7 spiegelsymmetrisch zueinander Zwischenhebel 34, 35 um ihre unteren halbkreisförmig gebogenen Enden 36, 37 schwenkbar gelagert, und zwar zu den Betätigungsstiften 18 bzw. 25 der Sitzgasfeder 12 bzw. der Rückenlehnengasfeder 19 hin. Deren Betätigungsstifte 18 bzw. 25 liegen an mittleren, bezogen auf die Betätigungsstifte 18, 25 nach aussen durchgebogenen Anlageflächen 38, 39 der Zwischenhebel 34, 35 an. Aufgrund der Durchbiegung der Anlageflächen 38, 39 liegen die Betätigungsstifte 18 bzw. 25 auch in unterschiedlichen Schwenkstellungen der Sitzgasfeder 12 bzw. Rückenlehnengasfeder 19 an den Anlageflächen 38 bzw. 39 an, ohne dass aufgrund der unterschiedlichen Schwenkstellungen eine Verschiebung also Betätigung der Betätigungsstifte 18 bzw. 25 bewirkt wird. Die Krümmung der Anlageflächen 38, 39 verläuft also etwa angenähert konzentrisch zu den jeweiligen Kugelgelenken 17 bzw. 23.In the lower area of the carrying device, on both sides of the receptacle 9, that is also on both sides of the chair column 7, mirror levers 34, 35 are pivotably mounted about their lower semicircular ends 36, 37, namely to the actuating pins 18 and 25 of the seat gas spring 12 and the other Backrest gas spring 19 out. Their actuating pins 18 and 25 rest on middle, relative to the actuating pins 18, 25 outwardly bent contact surfaces 38, 39 of the intermediate levers 34, 35. Due to the deflection of the contact surfaces 38, 39, the actuating pins 18 and 25 are also in different pivoting positions of the seat gas spring 12 or backrest gas spring 19 on the contact surfaces 38 and 39, without any displacement due to the different pivoting positions, ie actuation of the actuating pins 18 or 25 is effected. The curvature of the contact surfaces 38, 39 thus runs approximately approximately concentrically with the respective ball joints 17 and 23, respectively.

Die oberen freien Enden der Zwischen hebel 34, 35 werden durch von den Anlageflächen 38, 39 jeweils nach innen und oben gekröpften Rastabschnitte 40, 41 gebildet, die beiderseits des in der Ruhelage befindlichen Betätigungsabschnitts 30 des Betätigungshebels 26 angeordnet sind und gegenüber letzterem in der Ruhelage ein geringes Spiel aufweisen. Wenn der Betätigungshebel 26 etwa in der Horizontalen - relativ zur Stützplatte 2 des Sitzes 3 nach vorn oder hinten - verschwenkt wird, dann wird entweder der Zwischenhebel 34 unter entsprechendem Betätigen des Betätigungsstiftes 18 der Sitzgasfeder 12 oder der Zwischenhebel 35 unter entsprechendem Betätigen des Betätigungsstiftes 25 der Rückenlehnengasfeder 19 aus seiner Ruhelage nach aussen verschwenkt. Bei einer solchen entsprechenden Betätigung kann daher entweder die Neigung der Stützplatte 2 mit dem Sitz 3 oder die Neigung des Rückenlehnenträgers 5 jeweils um die Schwenkachsen 4 bzw. 6 verändert werden. Wenn der Griff 28 des Betätigungshebels 26 von der bedienenden Person losgelassen wird, wird er jeweils von dem Betätigungsstift 18 bzw. 25 über den entsprechenden Zwischenhebel 34 bzw. 35 in seine Mittellage verschoben. Das vom jeweiligen Betätigungsstift 18 bzw. 25 betätigte Ventil der entsprechenden Gasfeder ist dann geschlossen. Die Stützplatte 2 bzw. der Rückenlehnenträger 5 werden wieder in einer neuen Neigungslage fixiert. Bei den horizontalen Schwenkbewegungen des Betätigungsabschnittes 30 des Betätigungshebels 26 wird dieser auf beiderseits des etwa vertikal nach unten gerichteten Bahnabschnitts 33 ausgebildeten Bahnabschnitten 42 bzw. 43 der Führungsbahn 32 geführt.The upper free ends of the intermediate lever 34, 35 are formed by the contact surfaces 38, 39 each cranked inward and upward latching sections 40, 41, which are arranged on both sides of the actuating section 30 of the actuating lever 26 in the rest position and opposite the latter in the rest position have little play. If the operating lever 26 about in the horizontal - relative to the support plate 2 of the seat 3 to the front or back - then either the intermediate lever 34 with appropriate actuation of the actuating pin 18 of the seat gas spring 12 or the intermediate lever 35 with the corresponding actuation of the actuating pin 25 of the backrest gas spring 19 from it Rest position swung outwards. With such a corresponding actuation, either the inclination of the support plate 2 with the seat 3 or the inclination of the backrest support 5 can be changed in each case about the pivot axes 4 or 6. When the handle 28 of the actuating lever 26 is released by the operator, it is shifted into its central position by the actuating pin 18 or 25 via the corresponding intermediate lever 34 or 35. The valve of the corresponding gas spring actuated by the respective actuating pin 18 or 25 is then closed. The support plate 2 or the backrest support 5 are again fixed in a new inclination position. In the case of the horizontal pivoting movements of the actuating section 30 of the actuating lever 26, the latter is guided on track sections 42 and 43 of the guide track 32 formed on both sides of the track section 33 which is directed approximately vertically downward.

Oberhalb des Betätigungshebels sind zwei gekreuzt angeordnete Rasthebel 44, 45 in der Trageinrichtung 1 angeordnet, die mittels ihrer oberen äusseren, gebogen ausgebildeten Enden 46, 47 in der Trageinrichtung 1 schwenkbar abgestützt sind. Sie werden mittels einer konzentrisch zur Mittel-Längs-Achse 10 angeordneten Druckfeder 48 nach unten gedrückt, so dass ihre unteren, etwa horizontal angeordneten, und leicht nach oben gekröpften Enden 49, 50 gegen die Rastabschnitte 40 bzw. 41 anliegen. Die Kreuzungsstelle der beiden Rasthebel 44, 45 befindet sich unmittelbar oberhalb des Betätigungsabschnittes 30 des Betätigungshebels 26.Above the actuating lever, two crossed locking levers 44, 45 are arranged in the carrying device 1, which are pivotably supported in the carrying device 1 by means of their upper outer, curved ends 46, 47. They are pressed down by means of a compression spring 48 arranged concentrically to the central longitudinal axis 10, so that their lower, approximately horizontally arranged and slightly upwardly bent ends 49, 50 bear against the latching sections 40 and 41, respectively. The crossing point of the two locking levers 44, 45 is located directly above the actuating section 30 of the actuating lever 26.

Wenn der Betätigungshebel 26 in der Horizontalen so verschwenkt wird, dass der der Sitzgasfeder 12 zugeordnete Zwischenhebel 34 unter Betätigung des entsprechenden Betätigungsstiftes 18 verschwenkt wird, dann wird während dieser Verschwenkbewegung das freie Ende 49 des Rasthebels 44 auf dem Rastabschnitt 40 des Zwischenhebels angehoben und drückt gegen diesen, da der Rasthebel 44 durch die Verschwenkung des Zwischenhebels 34 gegen den Druck der Druckfeder 48 leicht nach oben ausgelenkt wird. Soll nur eine Längenverstellung der Sitzgasfeder 12, also eine Neigungsverstellung der Stützplatte 2 des Sitzes 3 erfolgen, bleibt es dabei. Wenn dagegen der Betätigungsstift 18 in seiner in die Sitzgasfeder 12 eingeschobenen Stellung arretiert weden soll, wenn also das innere Ventil der Sitzgasfeder 12 ständig geöffnet sein soll, dann wird der Betätigungshebel 26 so weit horizontal verschwenkt, dass der Rastabschnitt 40 des Zwischenhebels in Eingriff mit dem gekröpften Ende 49 des Rasthebels 44 gebracht wird. Der Rasthebel 44 wird hierbei durch die Druckfeder 48 nach unten gedrückt und setzt sich mit seinem gekröpften Ende 49 auf und hinter den Rastabschnitt 40 des Zwischenhebels 34. In gleicher Weise kann der Betätigungsstift 25 der Rückenlehnengasfeder 19 lediglich für eine Neigungsverstellung des Rückenlehnenträgers 5 eingeschoben oder wahlweise in der eingeschobenen Stellung arretiert werden, in der dann das untere gekröpfte Ende 50 des Rasthebels 45 auf und hinter dem Rastabschnitt 41 des Zwischenhebels 35 sitzt. Wie in Fig. 4 dargestellt ist. Zum Lösen der Arretierung eines oder beider Zwischenhebel 34 bzw. 35 und damit eines oder beider Betätigungsstifte 18 bzw. 25 wird der Griff 28 des Betätigungshebels 26 in der Mittellage nach unten gedrückt, wodurch sein Betätigungsabschnitt 30 nach oben gegen den Kreuzungsbereich der Rasthebel 44, 45 gedrückt wird. Hierdurch werden diese und damit deren gekröpfte Enden 49, 50 nach oben gehoben, so dass ein oder beide Betätigungsstifte 18 bzw. 29 den bzw. die Zwischenhebel 34 bzw. 35 wieder in ihre Ruhelage drücken können. Der Betätigungshebel 26 wird durch ein elastisches Kissen 51, beispielsweise aus geschäumten Polyurethan-Schaum, jeweils wieder in seine mittlere Ruhelage gebracht bzw. dort gehalten.If the actuating lever 26 is pivoted horizontally such that the intermediate lever 34 associated with the seat gas spring 12 is pivoted by actuating the corresponding actuating pin 18, then during this pivoting movement the free end 49 of the latching lever 44 is raised on the latching section 40 of the intermediate lever and presses against this, because the locking lever 44 is slightly deflected upwards by the pivoting of the intermediate lever 34 against the pressure of the compression spring 48. If only a length adjustment of the seat gas spring 12, that is to say an inclination adjustment of the support plate 2 of the seat 3, is to be made, it remains so. If, on the other hand, the actuating pin 18 is to be locked in its position pushed into the seat gas spring 12, that is to say if the inner valve of the seat gas spring 12 is to be constantly open, then the actuating lever 26 is pivoted horizontally so far that the latching section 40 of the intermediate lever engages with the cranked end 49 of the locking lever 44 is brought. The locking lever 44 is pressed down by the compression spring 48 and sits with its cranked end 49 on and behind the locking section 40 of the intermediate lever 34. In the same way, the actuating pin 25 of the backrest gas spring 19 can only be inserted for an inclination adjustment of the backrest support 5 or alternatively be locked in the inserted position, in which the lower cranked end 50 of the locking lever 45 then sits on and behind the locking section 41 of the intermediate lever 35. As shown in Fig. 4. To release the locking of one or both intermediate levers 34 and 35 and thus one or both actuating pins 18 and 25, the handle 28 of the actuating lever 26 is pressed down in the central position, as a result of which its actuating section 30 is pushed upward against the crossing region of the latching levers 44, 45 is pressed. As a result, these and thus their cranked ends 49, 50 are lifted upward, so that one or both actuating pins 18 and 29 can push the intermediate lever or levers 34 and 35 back into their rest position. The actuating lever 26 is brought back into its central rest position or held there by an elastic cushion 51, for example made of foamed polyurethane foam.

Claims (5)

1. Supporting device (1) of an angle-adjustable seat back support (5) and an angle-adjustable support plate (2) for a seat (3) of a height- adjustable seat-type piece of furniture, particularly an office chair, a length-adjustable seat gas spring (12) being articulated on the supporting device (1) and support plate (2) and a length-adjustable seat back gas spring (19) being articulated on the supporting device (1) and seat back support (5), a chair column (7) which is formed by a length-adjustable gas spring also being connected to the supporting device (1), actuating pins (18, 25) of the seat gas spring (12) and seat back gas spring (19) facing one another and bearing against respective intermediate levers (34, 35), these intermediate levers (34, 35) being deflectable by means of an operating lever (26) which can be operated in an approximately horizontal guideway (32) and being lockable in a deflected position in which the actuating pins (18, 25) are pushed into the seat gas spring (12) and seat back gas spring (19), respectively, and an actuating pin (11) for the chair column (7), which can be actuated bythe operating lever (26), being located between the two intermediate levers (34, 35), characterised in that each intermediate lever (34, 35) is associated with a locking lever (44,45) which bears resiliently against the intermediate lever and is situated above the chair column (7) and which, after deflection of each intermediate lever (34 or 35), is positioned behind the latter and fixes it with a snap-engaging action, and that the guide way (32) has a central vertical section (33) associated with the actuating pin (11) of the chair column (7).
2. Device according to Claim 1, characterised in that the locking levers (44, 45) are arranged so as to extend essentially horizontally above the operating lever (26).
3. Device according to Claim 1 or 2, characterised in that the operating lever (26) is rod- shaped in its operating section (30) associated with the intermediate levers (34, 35) and the actuating pin (11) of the chair column (7).
4. Device according to any one of Claims 1 to 3, characterised in that the locking levers (44,45) are mounted pivotably about their upper outer ends (46, 47) and arranged to intersect one another, and that their lower free ends (49, 50) are associated with the intermediate levers (34,35).
5. Device according to Claim 4, characterised in that a compression spring (48) acting in the direction of the intermediate levers (34,35) engages on the locking levers (44, 45).
EP84111276A 1983-09-30 1984-09-21 Supporting device for seating furniture with an adjustably inclinable backrest support and an adjustably inclinable seat Expired EP0144577B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84111276T ATE24103T1 (en) 1983-09-30 1984-09-21 SUPPORTING DEVICE FOR SEATING WITH AN INCLINED BACKREST SUPPORT AND AN INCLINED SEAT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3335463 1983-09-30
DE19833335463 DE3335463A1 (en) 1983-09-30 1983-09-30 CARRYING DEVICE FOR SEAT FURNITURE WITH ADJUSTABLE BACKREST SUPPORT AND ADJUSTABLE SEAT

Publications (2)

Publication Number Publication Date
EP0144577A1 EP0144577A1 (en) 1985-06-19
EP0144577B1 true EP0144577B1 (en) 1986-12-10

Family

ID=6210527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111276A Expired EP0144577B1 (en) 1983-09-30 1984-09-21 Supporting device for seating furniture with an adjustably inclinable backrest support and an adjustably inclinable seat

Country Status (5)

Country Link
US (1) US4589697A (en)
EP (1) EP0144577B1 (en)
AT (1) ATE24103T1 (en)
AU (1) AU565776B2 (en)
DE (2) DE3335463A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104791406A (en) * 2014-01-16 2015-07-22 岱宇国际股份有限公司 Air pressure reinforced telescopic rod and seat

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE453253B (en) * 1985-06-24 1988-01-25 Lars Ake Holstensson FITTING FOR SEPARATE OFFICE CHAIR
US4776633A (en) * 1986-04-10 1988-10-11 Steelcase Inc. Integrated chair and control
DE3616153C1 (en) * 1986-05-14 1987-06-11 Grammer Sitzsysteme Gmbh Seat, especially office chair
DE3617539C1 (en) * 1986-05-24 1987-07-23 Grammer Sitzsysteme Gmbh Seat with adjustable seat plate and reclining backrest
US4832407A (en) * 1987-11-27 1989-05-23 Hector Serber Variable posture chair and method
US5106157A (en) * 1989-03-01 1992-04-21 Herman Miller, Inc. Chair height and tilt adjustment mechanisms
ATE91396T1 (en) * 1989-09-21 1993-07-15 Sitag Ag CHAIR, ESPECIALLY WORK CHAIR.
DE9211244U1 (en) * 1992-08-21 1992-10-29 Friedrich W. Dauphin GmbH & Co, Entwicklungs- und Beteiligungs-KG, 8561 Offenhausen Chair
US5612718A (en) * 1992-11-24 1997-03-18 Bryan; Jed A. Variably adjustable chair having an adjustable ergonomic keyboard
US5577807A (en) * 1994-06-09 1996-11-26 Steelcase Inc. Adjustable chair actuator
DE19517658A1 (en) * 1995-05-13 1996-11-14 Link Wilhelm Kg Chair especially for office with seat surface on seat support on column
DE19528649C2 (en) * 1995-08-04 1997-05-22 Stabilus Gmbh Chair with backrest reset
US6149236A (en) * 1996-10-14 2000-11-21 Vitra Patents Ag Chair frame, control mechanism and upholstery
GB2340746B (en) 1998-07-27 2002-02-13 Ashfield Eng Co Wexford Ltd A chair
SE512936C2 (en) 1998-09-10 2000-06-05 Bertil Jonsson Chair
GB0013994D0 (en) * 2000-06-09 2000-08-02 Glaser Alan Control arrangement for a chair
US6513879B1 (en) * 2000-11-15 2003-02-04 Fulcrum Product Development Inc. Chair adjustment mechanism
MY134768A (en) * 2002-01-17 2007-12-31 Green Continental Furniture M Sdn Bhd A dining chair with reclining mechanism
US7234775B2 (en) * 2002-06-18 2007-06-26 Hector Serber Dynamically balanced seat assembly having independently and arcuately movable seat and backrest and method
US7014264B2 (en) * 2004-07-21 2006-03-21 Alderman Lee V Folding chair with pnuematically height adjustable seat
US7293833B2 (en) * 2005-02-02 2007-11-13 Itoki Corporation Chair and support mechanism unit thereof
DE102005008895A1 (en) * 2005-02-26 2006-09-07 Recaro Aircraft Seating Gmbh & Co. Kg Passenger seat, in particular passenger seat
US20100141002A1 (en) * 2008-06-04 2010-06-10 Kurrasch Andrew J Biasing mechanism
DE102008039263A1 (en) * 2008-08-22 2010-02-25 Zim Gmbh Seat, in particular aircraft seat
JP2010227314A (en) * 2009-03-27 2010-10-14 Oki Electric Ind Co Ltd Chair
US20120139318A1 (en) * 2010-12-07 2012-06-07 Chuen-Jong Tseng Chair
DE102013005861A1 (en) 2013-04-08 2014-10-09 Burkhard Schmitz Mechanism assembly for a chair and chair with such a mechanical assembly
DE102013005860A1 (en) 2013-04-08 2014-10-09 Burkhard Schmitz Mechanism assembly for a chair and chair with such a mechanical assembly
US9271573B2 (en) * 2014-04-10 2016-03-01 Dongguan Kentec Office Seating Co., Ltd. Multifunction control device
US9504327B2 (en) * 2015-02-09 2016-11-29 Harmony Lifestyle, LLC Reclinable chair having a locking gas spring reclining back rest
US11253077B2 (en) * 2016-12-21 2022-02-22 Kokuyo Co., Ltd. Chair with return force mechanism
SE542449C2 (en) * 2017-03-31 2020-05-05 Permobil Ab Tilt assembly for a powered wheelchair and a powered wheelchair comprising the same
GB202007082D0 (en) * 2020-05-13 2020-06-24 Gibson Aaron Assemblage for forming a treatment chair
US11717089B2 (en) * 2020-10-23 2023-08-08 Lost Luggage ID Limited Multiple sitting position chair

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929428C2 (en) * 1979-07-20 1983-10-20 Fa. Willibald Grammer, 8450 Amberg Seat, especially office chair
US4438898A (en) * 1980-05-01 1984-03-27 Steelcase Inc. Chain control locking assembly
US4408800A (en) * 1980-06-11 1983-10-11 American Seating Company Office chairs
AT367992B (en) * 1981-03-17 1982-08-25 Zuend & Co Ag K SEAT FURNITURE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104791406A (en) * 2014-01-16 2015-07-22 岱宇国际股份有限公司 Air pressure reinforced telescopic rod and seat

Also Published As

Publication number Publication date
DE3461591D1 (en) 1987-01-22
EP0144577A1 (en) 1985-06-19
ATE24103T1 (en) 1986-12-15
DE3335463A1 (en) 1985-04-11
US4589697A (en) 1986-05-20
AU565776B2 (en) 1987-09-24
AU3338284A (en) 1985-04-04

Similar Documents

Publication Publication Date Title
EP0144577B1 (en) Supporting device for seating furniture with an adjustably inclinable backrest support and an adjustably inclinable seat
EP0085670B1 (en) Chair
EP0022933B1 (en) Chair with reclining seat and reclining backrest
DE3616475C1 (en) Height-adjustable swivel chair equipped with gas pressure spring, in particular office chair or armchair
EP0179357B1 (en) Chair
DE3622272C2 (en)
EP0322400A2 (en) Chair frame with a reclining seat and a backrest support
DE69600161T2 (en) Improvements for systems with differential shaping of backrests of office chairs
DE2057980A1 (en) Tilting chair
DE2733322A1 (en) WORK CHAIR
DE3429186A1 (en) SEAT, IN PARTICULAR OFFICE CHAIR
EP0264029B1 (en) Chair
DE2541559A1 (en) Adjustable lumbar support for seat - has two arm linkage to seat frame for vertical and horizontal movement
DE1203929B (en) Seating furniture with torsion bar springs for swiveling the seat and backrest
EP0233974B1 (en) Tilting device for sitting-furniture
DE1135143B (en) Adjustable seat and reclining chair with swiveling backrest, seat and footrest
DE19724763C2 (en) Vehicle seat, in particular passenger seat
CH632153A5 (en) Erecting chair
DE69714910T2 (en) adjustment
DE1429413B2 (en) FITTING FOR AN ARMCHAIR ADJUSTABLE IN MULTIPLE POSITIONS
DE1159147B (en) Lever control device for the leg rest of an adjustable chair
EP0341344A2 (en) Sitting furniture
DE3635243A1 (en) Chair, in particular office chair
DE202009000731U1 (en) seating
DE1404652C3 (en) Reclining armchair with an extendable legrest

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19850413

17Q First examination report despatched

Effective date: 19860217

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 24103

Country of ref document: AT

Date of ref document: 19861215

Kind code of ref document: T

ITF It: translation for a ep patent filed
ET Fr: translation filed
REF Corresponds to:

Ref document number: 3461591

Country of ref document: DE

Date of ref document: 19870122

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910812

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19910819

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19910828

Year of fee payment: 8

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910930

Year of fee payment: 8

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19920911

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19920916

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19920921

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19920923

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920930

Ref country code: CH

Effective date: 19920930

Ref country code: BE

Effective date: 19920930

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19921121

Year of fee payment: 9

BERE Be: lapsed

Owner name: FRITZ BAUER + SOHNE OHG

Effective date: 19920930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19930401

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930921

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930922

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930921

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 84111276.6

Effective date: 19940410