EP0207916A2 - Mounting, particularly for office chairs - Google Patents

Mounting, particularly for office chairs Download PDF

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Publication number
EP0207916A2
EP0207916A2 EP86850233A EP86850233A EP0207916A2 EP 0207916 A2 EP0207916 A2 EP 0207916A2 EP 86850233 A EP86850233 A EP 86850233A EP 86850233 A EP86850233 A EP 86850233A EP 0207916 A2 EP0207916 A2 EP 0207916A2
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EP
European Patent Office
Prior art keywords
control
frame
axis
seat
backrest
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Granted
Application number
EP86850233A
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German (de)
French (fr)
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EP0207916A3 (en
EP0207916B1 (en
Inventor
Lars Ake Holstensson
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Individual
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Individual
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Publication of EP0207916A2 publication Critical patent/EP0207916A2/en
Publication of EP0207916A3 publication Critical patent/EP0207916A3/en
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Publication of EP0207916B1 publication Critical patent/EP0207916B1/en
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    • 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 present invention relates to a fitting, in particular for an office chair with foot, foot stand or the like, seat and backrest, comprising a frame with fastenings for attachment to the underside of the seat, pivotable holders in the frame for the backrest and the foot stand, a pivoting counteracting members between the frame and the holders, and a control member movable from a neutral position in at least three directions against a spring force, which is mounted in the frame to trigger one of the two members counteracting pivoting when moving in a first and a second direction, so that this allows the associated holder to be pivoted.
  • Office chairs usually consist of a seat that is mounted on a footed support stand that can be lengthened and shortened to adjust the seat height, a backrest that is adjustable in height and can be tilted backwards from an elastic, restrained front position, and one at the bottom of the seat attached fitting, through which the seat is connected to the support stand and the backrest via a backrest column attached to the backrest.
  • the control levers or the like are also in the fitting. stored for the various seat and backrest movements.
  • the invention has for its object to provide a simple fitting of the type mentioned, with the seat and backrest can be adjusted continuously, the actuators are simple and reliable, and in which the important adjustment of the seat angle can be done simultaneously with the adjustment of the backrest .
  • This task is achieved in that the control member triggers both members simultaneously when moving in the third direction.
  • the fitting according to the invention consists of a frame which is generally designated 10 and has two frame side pieces 11, 12 which are kept at a distance from one another by means of frame cross pieces 13, 15.
  • One cross piece 13 is arranged at a short end of the frame and consists of an L-profile, one flange of which bears against the upper side of the side pieces 11, 12 and the other flange of which has the same height as the side pieces 11, 12 and bears against the end edges thereof .
  • the cross piece 13 is welded to the side pieces 11, 12 and extends - as can be seen in FIG. 1 - at a considerable distance from the outer surfaces of the side pieces 11, 12 facing away from one another. Near each of its opposite ends, the cross piece has a bore 14.
  • the other cross piece 15 is in the form of a square tube which is fastened in flat recesses in the top of the side pieces 11, 12 and like the cross piece 13 with the side pieces 11, 12 at a right angle includes.
  • Fastening lugs 16 are welded to the square tube 15, each of which has a bore 17.
  • the square tube 15 has holes 18 near its opposite ends.
  • the cross pieces 13, 15 form fastenings for fixing the frame 10 to the underside of an office chair seat by screwing screws into the chair seat through the openings 14 and 17 and / or 18.
  • the frame 10 is attached to the underside of the chair seat such that its longitudinal center line coincides with the center line of the chair seat, the latter extending from the front to the rear edge of the seat, the crosspiece 15 being located near the rear edge of the seat.
  • a holder 19 is vertically pivoted by means of a bearing axis 20 (Fig. 2).
  • This holder 19 has a through hole 21 which is festge from a holder 19 welded pipe section can be formed.
  • the opening 21 serves to receive the upper end of a footed support stand in a conventional manner.
  • the support stand includes a gas spring that allows the support stand to be lengthened and shortened to adjust the height of the chair seat.
  • the control member of the gas spring is located slightly above the surface of the holder 19 and can be controlled by means of a lever 35 of conventional design.
  • another holder 22 is pivotally mounted by means of an axis 23. This holder is intended to receive the backrest column in an opening 24 and has a not shown, manually controllable link for holding the backrest column in the set height position.
  • the pivotable mounting of the two holders 19, 22 allows the frame 10 and thus the chair seat to be tilted in relation to the vertical support stand, while the backrest can be tilted in relation to the chair seat.
  • the holder 19 is connected to the frame 10 by means of a gas spring 25, while the holder 22 is connected to the frame 10 by means of a gas spring 48.
  • These gas springs 25, 48 are of conventional design, ie they have a control member 27 at one end (FIG. 1) which releases the gas spring when actuated and enables a relative movement of the two gas spring ends.
  • gas springs are extremely common and function perfectly.
  • the gas spring 25 has at one end a fastening lug 26 through which an axis 27 extends, which is mounted at one end of two fastening rods 28 (FIG. 2), the ent opposite end is connected to the holder 19.
  • the control member 47 of the gas spring 25 protrudes from the opposite side of the member 46, as shown in Fig. 1.
  • the gas spring 48 is pivotally connected to the holder 22 by means of a bearing axis 23, which is located at a distance from the bearing axis 58 of the holder 22 between the side pieces 11, 12.
  • the opposite end of the gas spring 48 which is movable in relation to the first-mentioned gas spring end, is mounted at 37 in the same way as the gas spring 25, and the control member 38 of the gas spring 48 protrudes from the side of the bearing point remote from the gas spring 48.
  • each axis has an arcuate nose 40 and 39, which are located directly on the control members 38 and 47 of the gas springs.
  • the gas spring ends provided with the control members and the axles 49, 50 in the frame 10 are arranged such that the control member 47 and 38 of the gas springs 25, 48, the axles 50, 49 by actuating the lugs 39, 40 of the axles 50, 49 in one Hold the first position in which the gas springs 25, 48 prevent the movement of the seat and backrest.
  • the axes 49, 50 In order to allow the seat and the backrest to tilt, the axes 49, 50 must be rotated in such a way that the parts 40, 39 press the control elements 38, 47.
  • the axes 49, 50 are rotated with the aid of angled parts 31 and 30 on these axes.
  • Arched lugs 33 and 34 abut against the angled parts 30, 31, which are fastened on an axle 32 mounted in the side pieces 11, 12 of the frame 10.
  • the angled parts 31, 30 of the axes 49, 50 are located on the outside of the one frame side piece, but can also be arranged inside the frame.
  • the axis 32 extends through a transverse slot, that is to say vertical in the position of use, in the frame side piece 11 and is rotatable at 45 and somewhat tiltably mounted in the frame side piece 12.
  • an actuating handle 41 is fastened, which follows mounting the fitting on the underside of the seat near which one side edge is located.
  • the arcuate lugs 33, 34 protrude on the axis 32 in opposite directions, and when the operating handle 41 is rotated counterclockwise, as indicated by the arrow 43, the lug 33 becomes the angled part 30 of the Swivel axis 50 upwards, whereby axis 50 is rotated and presses in the nose 39 of the actuating member 47, so that the gas spring 25 is unlocked and the seat can be pivoted in relation to the support stand.
  • the handle 41 is released and, under the action of the spring force, the control member 47 returns to the position shown in FIG. 2, and the set position is maintained by the locking of the gas spring 25.
  • the nose protruding from the axis 32 in the opposite direction is from the associated one Axle part 31 has been lifted, which has therefore not been actuated.
  • the operating handle 41 is turned counterclockwise, as indicated by the arrow 42, the latter axle part 31 is actuated, whereby the axle 49 is rotated and the spring 48 is released by the lug 40 pushing in the control member 38 of this gas spring, so that the holder 22 and thus the backrest can be tilted.
  • the axle part 30 is not actuated.
  • the gas spring 48 locks again when the handle 41 is released as in the previous case.
  • both axles 49, 50 are actuated by the lugs 33, 34 the angled axle parts 30, 31 push up.
  • both gas springs 25, 48 are unlocked and the seat inclination can be adjusted simultaneously with the inclination of the backrest, whereby the adjustment of the position desired for the seat and backrest is made considerably easier. Because both the seat and the backrest can be infinitely adjusted to the desired inclination, the user of the chair has the opportunity to choose the setting that best suits his needs.

Abstract

A frame (10) is secured to the seat underside. A swivel holder (22) for the backrest and a swivel holder (19) for the support stand have gas springs (25,48) fitted between the holders and frame. These springs are operated by a control member (32) which can rotate in opposite directions and can be raised vertically. On turning the control member in one direction, one gas spring (25) is released to swivel the associated swivel holder, while by turning it in the other direction releases the other gas spring (48) to swivel the backrest holder. Raising the control member vertically allows both gas springs to be released so that the seat and backrest can be swivelled at the same time.

Description

Die vorliegende Erfindung betrifft einen Beschlag, insbesondere für einen Bürostuhl mit Fuss, Fussständer od.dgl., Sitz und Rückenlehne, umfassend einen Rahmen mit Befestigungen zur Anbringung an der Unterseite des Sitzes, schwenkbaren Haltern im Rahmen für die Rückenlehne und den Fussständer, einer Schwenkung entgegenwirkenden Gliedern zwischen dem Rahmen und den Haltern, sowie einen aus einer Neutrallage in zumindest drei Richtungen entgegen einer Federkraft beweglichen Steuerglied, das im Rahmen gelagert ist, um bei Bewegung in einer ersten und einer zweiten Richtung eines der beiden einer Schwenkung entgegen­wirkenden Glieder auszulösen, so dass dieses eine Schwenkung des dazugehörigen Halters gestattet.The present invention relates to a fitting, in particular for an office chair with foot, foot stand or the like, seat and backrest, comprising a frame with fastenings for attachment to the underside of the seat, pivotable holders in the frame for the backrest and the foot stand, a pivoting counteracting members between the frame and the holders, and a control member movable from a neutral position in at least three directions against a spring force, which is mounted in the frame to trigger one of the two members counteracting pivoting when moving in a first and a second direction, so that this allows the associated holder to be pivoted.

Viele Menschen, vor allem Büroangestellte, ver­bringen einen grossen Teil ihrer Arbeitszeit in sitzen­der Stellung. Ärzte und Spezialisten der Ergonometrie haben festgestellt, dass schlechte Sitzstellungen in hohem Grade zu Rückenbeschwerden beitragen, und dass vor allem die Rückenmuskeln und -gewebe einer Person, die viele Stunden über einen Tisch gebeugt sitzt, beträchtlichen Beanspruchungen ausgesetzt sind. Aus diesem Grunde ist es wichtig, dass der Arbeitsstuhl richtig konstruiert und so einstellbar ist, dass er den Bedürfnissen der einzelnen Person genügt und in allen Sitzstellungen dem Gesäss und dem Rücken die bestmögliche Stütze bietet.Many people, especially office workers, spend a large part of their working hours in a seated position. Physicians and specialists in ergonomics have found that poor sitting positions are a major contributor to back problems, and that the back muscles and tissues of a person who is bent over a table for many hours are exposed to considerable stress. For this reason, it is important that the work chair is correctly constructed and adjustable so that it meets the needs of the individual person and offers the best possible support for the buttocks and the back in all seating positions.

Bürostühle bestehen normalerweise aus einem Sitz, der auf einem mit einem Fuss versehenen Tragständer montiert ist, welcher zur Einstellung der Sitzhöhe verlängert und verkürzt werden kann, einer Rückenlehne, welche höhenverstellbar ist und aus einer elastisch zurückhaltenden, vorderen Lage nach hinten gekippt werden kann, und einem an der Unterseite des Sitzes befestigten Beschlag, durch den der Sitz mit dem Trag­ständer und der Rückenlehne über eine an der Lehne befestigte Lehnensäule verbunden ist. Im Beschlag sind auch die Steuerhebel od.dgl. für die verschiedenen Sitz- und Rückenlehnenbewegungen gelagert.Office chairs usually consist of a seat that is mounted on a footed support stand that can be lengthened and shortened to adjust the seat height, a backrest that is adjustable in height and can be tilted backwards from an elastic, restrained front position, and one at the bottom of the seat attached fitting, through which the seat is connected to the support stand and the backrest via a backrest column attached to the backrest. The control levers or the like are also in the fitting. stored for the various seat and backrest movements.

Damit Sitz und Rückenlehne in bestmöglicher Weise eingestellt werden können, ist es wichtig, dass die Steuerhebel leicht bedienbar und erreichbar sind. Die heutigen Einstellvorrichtungen arbeiten oft stufen­weise, was unvorteilhaft ist, da hierdurch eine genaue, individuelle Anpassung des Sitzes und der Rückenlehne an die Bedürfnisse der einzelnen Person oft verhindert oder jedenfalls erschwert wird. Ausserdem sind die Einstellvorrichtungen gelegentlich unnötig kompliziert, so dass die Konstruktion teurer wird und ausserdem leichter beschädigt werden kann. Die Anordnung eines Steuerhebels für jede Sitz- und Rückenlehnenbewegung ist ungeeignet, da man hierdurch die Hebel abwechselnd betätigen muss, um die erwünschten Sitz- und Rücken­lehnenlagen zu erreichen, und dies führt dazu, dass die endgültige Lage oft ein Kompromiss wird.So that the seat and backrest can be adjusted in the best possible way, it is important that the control levers are easy to operate and reach. Today's adjustment devices often work in stages, which is disadvantageous, since this often prevents or at least complicates an exact, individual adjustment of the seat and backrest to the needs of the individual. In addition, the adjustment devices are sometimes unnecessarily complicated, so that the construction becomes more expensive and is more easily damaged. The placement of a control lever for each seat and backrest movement is unsuitable because it requires the levers to be operated alternately to achieve the desired seat and backrest positions, and this often results in the final position being a compromise.

Der Erfindung liegt die Aufgabe zugrunde, einen einfachen Beschlag des eingangs erwähnten Typs zu schaffen, mit dem Sitz und Rückenlehne stufenlos ein­gestellt werden können, dessen Betätigungsglieder einfach und zuverlässig sind, und bei dem die wichtige Einstellung der Sitzneigung gleichzeitig mit der Ein­stellung der Rückenlehne erfolgen kann. Diese Aufgabe wird dadurch erreicht, dass das Steuerglied bei Bewegung in der dritten Richtung beide Glieder gleichzeitig auslöst.The invention has for its object to provide a simple fitting of the type mentioned, with the seat and backrest can be adjusted continuously, the actuators are simple and reliable, and in which the important adjustment of the seat angle can be done simultaneously with the adjustment of the backrest . This task is achieved in that the control member triggers both members simultaneously when moving in the third direction.

Die Erfindung ist im folgenden anhand der Zeichnung näher erläutert. Es zeigen

  • Fig. 1 den erfindungsgemässen Beschlag von unten gesehen, und
  • Fig. 2 den Beschlag von der einen Seite gesehen.
The invention is explained below with reference to the drawing. Show it
  • Fig. 1 seen the fitting according to the invention from below, and
  • Fig. 2 seen the fitting from one side.

Der erfindungsgemässe Beschlag besteht aus einem Rahmen, der allgemein mit 10 bezeichnet ist und zwei Rahmenseitenstücke 11, 12 aufweist, die mit Hilfe von Rahmenquerstücken 13, 15 im Abstand voneinander gehalten sind. Das eine Querstück 13 ist am einen kurzen Ende des Rahmens angeordnet und besteht aus einem L-Profil, dessen einer Flansch gegen die Ober­seite der Seitenstücke 11, 12 anliegt und dessen anderer Flansch dieselbe Höhe wie die Seitenstücke 11, 12 hat und gegen deren Endkanten anliegt. Das Querstück 13 ist an den Seitenstücken 11, 12 festgeschweisst und erstreckt sich - wie aus Fig. 1 ersichtlich - in einem beträchtlichen Abstand von den voneinander abgewandten Aussenflächen der Seitenstücke 11, 12 weg. Nahe jedem seiner entgegengesetzten Enden hat das Querstück eine Bohrung 14. Das andere Querstück 15 ist in Form eines Vierkantrohres, das in flachen Ausnehmungen in der Oberseite der Seitenstücke 11, 12 befestigt ist und wie das Querstück 13 mit den Seitenstücken 11, 12 einen rechten Winkel einschliesst. Am Vierkantrohr 15 sind Befestigungsnasen 16 festge­schweisst, die je eine Bohrung 17 aufweisen. Das Vier­kantrohr 15 hat nahe seinen entgegengesetzten Enden Bohrungen 18. Die Querstücke 13, 15 bilden Befestigungen zur Fixierung des Rahmens 10 an der Unterseite eines Bürostuhlsitzes, indem in den Stuhlsitz durch die Öffnungen 14 und 17 und/oder 18 Schrauben eingeschraubt werden. Der Rahmen 10 wird derart an der Unterseite des Stuhlsitzes befestigt, dass seine Längsmittellinie mit der Mittellinie des Stuhlsitzes zusammenfällt, welche letztere sich von der vorderen bis zur hinteren Kante des Sitzes erstreckt, wobei das Querstück 15 nahe der hinteren Sitzkante angebracht ist.The fitting according to the invention consists of a frame which is generally designated 10 and has two frame side pieces 11, 12 which are kept at a distance from one another by means of frame cross pieces 13, 15. One cross piece 13 is arranged at a short end of the frame and consists of an L-profile, one flange of which bears against the upper side of the side pieces 11, 12 and the other flange of which has the same height as the side pieces 11, 12 and bears against the end edges thereof . The cross piece 13 is welded to the side pieces 11, 12 and extends - as can be seen in FIG. 1 - at a considerable distance from the outer surfaces of the side pieces 11, 12 facing away from one another. Near each of its opposite ends, the cross piece has a bore 14. The other cross piece 15 is in the form of a square tube which is fastened in flat recesses in the top of the side pieces 11, 12 and like the cross piece 13 with the side pieces 11, 12 at a right angle includes. Fastening lugs 16 are welded to the square tube 15, each of which has a bore 17. The square tube 15 has holes 18 near its opposite ends. The cross pieces 13, 15 form fastenings for fixing the frame 10 to the underside of an office chair seat by screwing screws into the chair seat through the openings 14 and 17 and / or 18. The frame 10 is attached to the underside of the chair seat such that its longitudinal center line coincides with the center line of the chair seat, the latter extending from the front to the rear edge of the seat, the crosspiece 15 being located near the rear edge of the seat.

Am vorderen Ende des Rahmens 10 ist ein Halter 19 vertikal schwenkbar mittels einer Lagerachse 20 montiert (Fig. 2). Dieser Halter 19 besitzt ein durch­gehendes Loch 21, das von einem im Halter 19 festge­ schweissten Rohrstück gebildet sein kann. Die Öffnung 21 dient dazu, das obere Ende eines mit einem Fuss versehenen Tragständers in herkömmlicher Weise aufzu­nehmen. Der Tragständer umfasst eine Gasfeder, die die Verlängerung und Verkürzung des Tragständers zur Einstellung der Höhe des Stuhlsitzes ermöglicht. Das Steuerglied der Gasfeder befindet sich etwas oberhalb der Oberfläche des Halters 19 und ist mittels eines Hebels 35 herkömmlicher Ausbildung steuerbar. Am ent­gegengesetzten Ende des Rahmens 10 ist ein anderer Halter 22 schwenkbar montiert mittels einer Achse 23. Dieser Halter soll in einer Öffnung 24 die Rücken­lehnensäule aufnehmen und besitzt ein nicht gezeigtes, von Hand steuerbares Glied zum Festhalten der Rücken­lehnensäule in der eingestellten Höhenlage.At the front end of the frame 10, a holder 19 is vertically pivoted by means of a bearing axis 20 (Fig. 2). This holder 19 has a through hole 21 which is festge from a holder 19 welded pipe section can be formed. The opening 21 serves to receive the upper end of a footed support stand in a conventional manner. The support stand includes a gas spring that allows the support stand to be lengthened and shortened to adjust the height of the chair seat. The control member of the gas spring is located slightly above the surface of the holder 19 and can be controlled by means of a lever 35 of conventional design. At the opposite end of the frame 10, another holder 22 is pivotally mounted by means of an axis 23. This holder is intended to receive the backrest column in an opening 24 and has a not shown, manually controllable link for holding the backrest column in the set height position.

Durch die schwenkbare Lagerung der beiden Halter 19, 22 kann der Rahmen 10 und somit der Stuhlsitz im Verhältnis zum senkrechten Tragständer gekippt werden, während die Rückenlehne im Verhältnis zum Stuhlsitz gekippt werden kann. Um Stuhlsitz und Rücken­lehne in der eingestellten Kipplage zu halten, ist der Halter 19 mittels einer Gasfeder 25 mit dem Rahmen 10 verbunden, während der Halter 22 mittels einer Gasfeder 48 mit dem Rahmen 10 verbunden ist. Diese Gasfedern 25, 48 sind herkömmlicher Ausbildung, d.h. sie besitzen an ihrem einen Ende ein Steuerglied 27 (Fig. 1), das bei Betätigung die Gasfeder freigibt und eine Relativbewegung der beiden Gasfederenden ermöglicht. Gasfedern sind in diesem Zusammenhang äusserst üblich und erfüllen einwandfrei ihre Funktion. Es sei jedoch betont, dass auch andere Mittel benutzt werden können, die der Schwenkbewegung der Halter 19, 22 entgegenwirken und zur Ausführung einer Schwenk­bewegung betätigbar sind. Die Gasfeder 25 hat am einen Ende eine Befestigungsnase 26, durch die sich eine Achse 27 erstreckt, die am einen Ende zweier Befes­tigungstangen 28 (Fig. 2) gelagert ist, deren ent­ gegengesetztes Ende mit dem Halter 19 verbunden ist. Das entgegengesetze und im Verhältnis zu dem mit Hilfe der Nase 26 befestigten Ende bewegliche Ende der Gas­feder 25 ist mit einem zwischen den Seitenstücken 11, 12 gelagerten Glied 46 verbunden. Das Steuerglied 47 der Gasfeder 25 ragt von der entgegengesetzten Seite des Gliedes 46 hervor, wie aus Fig. 1 ersicht­lich. Die Gasfeder 48 ist schwenkbar verbunden mit dem Halter 22 mittels einer Lagerachse 23, die im Abstand von der Lagerachse 58 des Halters 22 zwischen den Seitenstücken 11, 12 gelegen ist. Das entgegen­gesetzte, im Verhältnis zum erstgenannten Gasfeder­ende bewegliche Ende der Gasfeder 48 ist bei 37 in derselben Weise wie die Gasfeder 25 gelagert, und das Steuerglied 38 der Gasfeder 48 ragt von der von der Gasfeder 48 abgewandten Seite der Lagerstelle hervor.The pivotable mounting of the two holders 19, 22 allows the frame 10 and thus the chair seat to be tilted in relation to the vertical support stand, while the backrest can be tilted in relation to the chair seat. In order to keep the chair seat and backrest in the set tilt position, the holder 19 is connected to the frame 10 by means of a gas spring 25, while the holder 22 is connected to the frame 10 by means of a gas spring 48. These gas springs 25, 48 are of conventional design, ie they have a control member 27 at one end (FIG. 1) which releases the gas spring when actuated and enables a relative movement of the two gas spring ends. In this context, gas springs are extremely common and function perfectly. However, it should be emphasized that other means can also be used which counteract the pivoting movement of the holders 19, 22 and can be actuated to carry out a pivoting movement. The gas spring 25 has at one end a fastening lug 26 through which an axis 27 extends, which is mounted at one end of two fastening rods 28 (FIG. 2), the ent opposite end is connected to the holder 19. The opposite end of the gas spring 25, which is movable in relation to the end fastened with the aid of the nose 26, is connected to a link 46 mounted between the side pieces 11, 12. The control member 47 of the gas spring 25 protrudes from the opposite side of the member 46, as shown in Fig. 1. The gas spring 48 is pivotally connected to the holder 22 by means of a bearing axis 23, which is located at a distance from the bearing axis 58 of the holder 22 between the side pieces 11, 12. The opposite end of the gas spring 48, which is movable in relation to the first-mentioned gas spring end, is mounted at 37 in the same way as the gas spring 25, and the control member 38 of the gas spring 48 protrudes from the side of the bearing point remote from the gas spring 48.

Die einfache und bequeme Betätigung der beiden Gasfedern 25, 48, d.h. deren Entriegelung und erneute Verriegelung nachdem sie im erwünschten Ausmass ver­schoben worden sind, ist für die Funktion des Stuhls von wesentlicher Bedeutung. Zu diesem Zweck sind zwei sich quer zum Rahmen erstreckende Achsen 49, 50 dreh­bar gelagert in zwei einander gegenüberliegenden Öff­nungen in den Seitenstücken 11, 12. Wie am besten aus Fig. 2 ersichtlich, hat jede Achse eine bogen­förmige Nase 40 bzw. 39, die sich unmittelbar an den Steuergliedern 38 bzw. 47 der Gasfedern befinden. Die mit den Steuergliedern versehenen Gasfederenden und die Achsen 49, 50 im Rahmen 10 sind derart ange­ordnet, dass das Steuerglied 47 bzw. 38 der Gasfedern 25, 48 die Achsen 50, 49 durch Betätigung der Nasen 39, 40 der Achsen 50, 49 in einer ersten Lage halten, in der die Gasfedern 25, 48 die Bewegung von Sitz und Rückenlehne verhindern. Um ein Kippen des Sitzes und der Rückenlehne zu ermöglichen, müssen die Achsen 49, 50 gedreht werden, derart, dass die Teile 40, 39 die Steuerglieder 38, 47 eindrücken. Das Drehen der Achsen 49, 50 erfolgt mit Hilfe von abgewinkelten Teilen 31 bzw. 30 auf diesen Achsen. Gegen die abge­winkelten Teile 30, 31 liegen bogenförmige Nasen 33 bzw. 34 an, die auf einer in den Seitenstücken 11, 12 des Rahmens 10 gelagerten Achse 32 befestigt sind. In der dargestellten Ausführungsform befinden sich die abgewinkelten Teile 31, 30 der Achsen 49, 50 an der Aussenseite des einen Rahmenseitenstücks, können jedoch auch innen im Rahmen angeordnet sein. Die Achse 32 erstreckt sich durch einen querverlaufenden, d.h. in der Gebrauchslage senkrechten Schlitz im Rahmen­seitenstück 11 und ist bei 45 drehbar und etwas kippbar gelagert im Rahmenseitenstück 12. An dem vom Rahmen 10 abgewandten Ende der Achse 32 ist ein Betätigungs­griff 41 befestigt, der sich nach der Montage des Beschlags an der Unterseite des Sitzes nahe dessen einer Seitenkante befindet.The simple and convenient actuation of the two gas springs 25, 48, ie their unlocking and relocking after they have been moved to the desired extent, is essential for the function of the chair. For this purpose, two axes 49, 50 extending transversely to the frame are rotatably mounted in two mutually opposite openings in the side pieces 11, 12. As can best be seen from FIG. 2, each axis has an arcuate nose 40 and 39, which are are located directly on the control members 38 and 47 of the gas springs. The gas spring ends provided with the control members and the axles 49, 50 in the frame 10 are arranged such that the control member 47 and 38 of the gas springs 25, 48, the axles 50, 49 by actuating the lugs 39, 40 of the axles 50, 49 in one Hold the first position in which the gas springs 25, 48 prevent the movement of the seat and backrest. In order to allow the seat and the backrest to tilt, the axes 49, 50 must be rotated in such a way that the parts 40, 39 press the control elements 38, 47. The axes 49, 50 are rotated with the aid of angled parts 31 and 30 on these axes. Arched lugs 33 and 34 abut against the angled parts 30, 31, which are fastened on an axle 32 mounted in the side pieces 11, 12 of the frame 10. In the embodiment shown, the angled parts 31, 30 of the axes 49, 50 are located on the outside of the one frame side piece, but can also be arranged inside the frame. The axis 32 extends through a transverse slot, that is to say vertical in the position of use, in the frame side piece 11 and is rotatable at 45 and somewhat tiltably mounted in the frame side piece 12. At the end of the axis 32 facing away from the frame 10, an actuating handle 41 is fastened, which follows mounting the fitting on the underside of the seat near which one side edge is located.

Die oben beschriebene Einrichtung ermöglicht eine äusserst einfache und vorteilhafte Betätigung der Gasfedern. Wie aus Fig. 1 ersichtlich, ragen die bogenförmigen Nasen 33, 34 auf der Achse 32 in ent­gegengesetzten Richtungen hervor, und wenn der Be­tätigungsgriff 41 entgegen dem Uhrzeigersinn gedreht wird, wie durch den Pfeil 43 angedeutet, wird die Nase 33 den abgewinkelten Teil 30 der Achse 50 aufwärts schwenken, wodurch die Achse 50 gedreht wird und die Nase 39 des Betätigungsglied 47 eindrückt, so dass die Gasfeder 25 entriegelt wird und der Sitz im Ver­hältnis zum Tragständer geschwenkt werden kann. Beim Erreichen der für den Sitz erwünschten Neigungslage wird der Griff 41 losgelassen, und unter der Wirkung der Federkraft kehrt das Steuerglied 47 in die in Fig. 2 gezeigte Lage zurück, und die eingestellte Lage wird durch die Verriegelung der Gasfeder 25 auf­rechterhalten. Die in entgegensetzter Richtung von der Achse 32 vorstehende Nase ist dabei vom dazugehörigen Achsteil 31 abgehoben worden, welcher also nicht be­tätigt worden ist. Wenn man dagegen den Betätigungs­griff 41 entgegen dem Uhrzeigersinn dreht, wie durch den Pfeil 42 angedeutet, wird der letztgenannte Achs­teil 31 betätigt, wodurch die Achse 49 gedreht und die Feder 48 freigegeben wird, indem die Nase 40 das Steuerglied 38 dieser Gasfeder eindrückt, so dass der Halter 22 und somit die Rückenlehne gekippt werden können. Aus demselben Grunde wie oben wird der Achsteil 30 dabei nicht betätigt. Die Gasfeder 48 verriegelt erneut, wenn der Griff 41 wie im vorhergehenden Falle losgelassen wird. Da die Achse 32 in einem Schlitz im Seitenstück 11 gelagert ist, kann der Griff auch gehoben werden, wie durch den Pfeil 44 angedeutet, und bei dieser Gelegenheit werden beide Achsen 49, 50 betätigt, indem die Nasen 33, 34 die abgewinkelten Achsteile 30, 31 aufwärts drücken. Hierdurch werden beide Gasfedern 25, 48 entriegelt, und die Sitzneigung kann gleichzeitig mit der Neigung der Rückenlehne eingestellt werden, wodurch die Einstellung der für Sitz und Rückenlehne erwünschten Lage bedeutend er­leichtert wird. Dadurch dass sowohl der Sitz als auch die Rückenlehne stufenlos in die erwünschte Neigungslage eingestellt werden können, hat der Benutzer des Stuhls die Möglichkeit, genau die seinen Bedürfnissen ent­sprechende Einstellung zu wählen.The device described above enables extremely simple and advantageous actuation of the gas springs. 1, the arcuate lugs 33, 34 protrude on the axis 32 in opposite directions, and when the operating handle 41 is rotated counterclockwise, as indicated by the arrow 43, the lug 33 becomes the angled part 30 of the Swivel axis 50 upwards, whereby axis 50 is rotated and presses in the nose 39 of the actuating member 47, so that the gas spring 25 is unlocked and the seat can be pivoted in relation to the support stand. When the inclination position desired for the seat is reached, the handle 41 is released and, under the action of the spring force, the control member 47 returns to the position shown in FIG. 2, and the set position is maintained by the locking of the gas spring 25. The nose protruding from the axis 32 in the opposite direction is from the associated one Axle part 31 has been lifted, which has therefore not been actuated. If, on the other hand, the operating handle 41 is turned counterclockwise, as indicated by the arrow 42, the latter axle part 31 is actuated, whereby the axle 49 is rotated and the spring 48 is released by the lug 40 pushing in the control member 38 of this gas spring, so that the holder 22 and thus the backrest can be tilted. For the same reason as above, the axle part 30 is not actuated. The gas spring 48 locks again when the handle 41 is released as in the previous case. Since the axle 32 is mounted in a slot in the side piece 11, the handle can also be raised, as indicated by the arrow 44, and on this occasion both axles 49, 50 are actuated by the lugs 33, 34 the angled axle parts 30, 31 push up. As a result, both gas springs 25, 48 are unlocked and the seat inclination can be adjusted simultaneously with the inclination of the backrest, whereby the adjustment of the position desired for the seat and backrest is made considerably easier. Because both the seat and the backrest can be infinitely adjusted to the desired inclination, the user of the chair has the opportunity to choose the setting that best suits his needs.

Claims (5)

1. Beschlag, insbesondere für einen Bürostuhl mit Fuss, Fussständer od.dgl., Sitz und Rückenlehne, umfassend einen Rahmen (10) mit Befestigungen (13, 15) zur Anbringung an der Unterseite des Sitzes, schwenk­baren Haltern (19, 22) im Rahmen (10) für die Rücken­lehne und den Fussständer, einer Schwenkung entgegen­wirkenden Gliedern (25, 48) zwischen dem Rahmen (10) und den Haltern (19, 22), sowie einen aus einer Neu­trallage in zumindest drei Richtungen (42, 43, 44) entgegen einer Federkraft beweglichen Steuerglied (32, 41), das im Rahmen (10) gelagert ist, um bei Bewegung in einer ersten und einer zweiten Richtung (42 bzw. 43) eines der beiden einer Schwenkung entgegen­wirkenden Glieder (25, 48) auszulösen, so dass dieses eine Schwenkung des dazugehörigen Halters (19, 23) gestattet, dadurch gekennzeichnet, dass das Steuerglied (32, 41) bei Bewegung in der dritten Richtung (44) beide Glieder (25, 48) gleichzeitig auslöst.1. Fitting, in particular for an office chair with foot, foot stand or the like., Seat and backrest, comprising a frame (10) with fastenings (13, 15) for attachment to the underside of the seat, swiveling holders (19, 22) in Frame (10) for the backrest and the foot stand, links (25, 48) counteracting pivoting between the frame (10) and the holders (19, 22), and one from a neutral position in at least three directions (42, 43, 44 ) against a spring force movable control member (32, 41) which is mounted in the frame (10) to trigger one of the two members counteracting pivoting when moving in a first and a second direction (42 or 43) , so that this allows the associated holder (19, 23) to pivot, characterized in that the control member (32, 41) triggers both members (25, 48) simultaneously when moving in the third direction (44). 2. Beschlag nach Anspruch 1, dadurch gekenn­zeichnet, dass das Steuerglied in entgegenge­setzten Richtungen (42, 43) drehbar und aus der Neutral­lage senkrecht schwenkbar (44) ist.2. Fitting according to claim 1, characterized in that the control member is rotatable in opposite directions (42, 43) and vertically pivotable (44) from the neutral position. 3. Beschlag nach Anspruch 1 oder 2, dadurch ge­kennzeichnet, dass das Steuerglied (32, 41) aus einer Achse (32) besteht, deren eines Ende in der einen Rahmenseite (12) gelagert ist und die sich von dort durch einen senkrechten Schlitz in der entgegengesetzten Rahmenseite (11) zu einem Punkt hinauserstreckt, der sich nach der Montage des Beschlags an Unterseite des Sitzes unter der Sitzkante befindet, wo die Achse einen bequem erreichbaren Griff (41) besitzt.3. Fitting according to claim 1 or 2, characterized in that the control member (32, 41) consists of an axis (32), one end of which is mounted in one side of the frame (12) and which extends from there through a vertical slot the opposite side of the frame (11) extends to a point which, after the fitting has been mounted on the underside of the seat, is below the edge of the seat, where the axis has a handle (41) which is easily accessible. 4. Beschlag nach Anspruch 3, dadurch gekenn­zeichnet, dass die Achse (32) des Steuergliedes an der den Schlitz aufweisenden Rahmenseite (11) zwei Steuerteile (33, 34) besitzt, von denen der eine (33) mit einem Steuerteil (30) einer ersten Steuerachse (50) eingreift, die mit dem einen einer Schwenkung entgegenwirkenden Glied (25) zu dessen Betätigung beim Drehen des Griffs (41) in der einen Richtung (42) verbunden ist, während der andere Steuerteil (34) mit einem Steuerteil (31) an der zweiten Steuer­achse (49) eingreift, die mit dem anderen einer Schwen­kung entgegenwirkenden Glied (48) zu dessen Betätigung beim Drehen des Griffs (41) in der anderen Richtung (43) verbunden ist, wobei die Steuerteile (33, 34) bei Verschiebung der Achse (32) vom einen Schlitzende zum anderen die beiden Steuerteile (30, 31) betätigen.4. Fitting according to claim 3, characterized in that the axis (32) of the control member on the slot having the frame side (11) has two control parts (33, 34), one of which (33) with a control part (30) one engages first control axis (50), which is connected to the one counter-pivoting member (25) for actuating it when the handle (41) is rotated in one direction (42), while the other control part (34) is connected to a control part (31 ) engages on the second control axis (49), which is connected to the other counter-pivoting member (48) for actuating it when the handle (41) is rotated in the other direction (43), the control parts (33, 34) being connected Shifting the axis (32) from one slot end to the other actuate the two control parts (30, 31). 5. Beschlag nach Anspruch 4, bei der die beiden einer Schwenkung entgegenwirkenden Glieder (25, 48) Gasfedern sind, dadurch gekennzeichnet, dass die Steuerachsen (49, 50) parallel zur Steuer­achse (32) in Rahmen (10) gelagert sind und je einen senkrecht abgewinkelten Teil (30, 31) an den Steuer­teilen (33, 34) der Steuerachse (32) aufweisen, welche Steuerteile aus axial hintereinander befestigten, in je einer Richtung etwa radial von der Steuerachse (32) vorstehenden, kreisbogenförmigen Gliedern bestehen, und dass die Steuerachsen (49, 50) je eine Nase (39, 40) aufweisen, die radial vorsteht und beim Drehen der Achse (49, 50) einen Auslösezapfen (38, 47) der dazugehörigen Gasfeder (48, 25) eindrücken.5. Fitting according to claim 4, in which the two elements counteracting pivoting (25, 48) are gas springs, characterized in that the control axes (49, 50) are mounted parallel to the control axis (32) in frame (10) and one each have vertically angled part (30, 31) on the control parts (33, 34) of the control axis (32), which control parts consist of axially one behind the other, in each direction approximately radially from the control axis (32) projecting circular arc-shaped members, and that the control axes (49, 50) each have a nose (39, 40) which projects radially and, when the axis (49, 50) rotates, press in a release pin (38, 47) of the associated gas spring (48, 25).
EP86850233A 1985-06-24 1986-06-23 Mounting, particularly for office chairs Expired EP0207916B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8503122A SE453253B (en) 1985-06-24 1985-06-24 FITTING FOR SEPARATE OFFICE CHAIR
SE8503122 1985-06-24
CA000546997A CA1280959C (en) 1985-06-24 1987-09-16 Seat mounting for office chairs
US07/098,083 US4838510A (en) 1985-06-24 1987-09-21 Seat mounting for office chairs

Publications (3)

Publication Number Publication Date
EP0207916A2 true EP0207916A2 (en) 1987-01-07
EP0207916A3 EP0207916A3 (en) 1987-08-19
EP0207916B1 EP0207916B1 (en) 1989-08-16

Family

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EP86850233A Expired EP0207916B1 (en) 1985-06-24 1986-06-23 Mounting, particularly for office chairs

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US (1) US4838510A (en)
EP (1) EP0207916B1 (en)
CA (1) CA1280959C (en)
DE (1) DE3665010D1 (en)
NO (1) NO169693C (en)
SE (1) SE453253B (en)

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US5899530A (en) * 1995-08-23 1999-05-04 Global Upholstery Company Control mechanism for a chair
DE20003313U1 (en) * 2000-02-23 2001-07-05 Koenig & Neurath Ag Spring unit for weight adjustment of a chair
US6513879B1 (en) * 2000-11-15 2003-02-04 Fulcrum Product Development Inc. Chair adjustment mechanism
US6450577B1 (en) 2000-12-04 2002-09-17 Haworth, Inc. Multifunction tilt control with single actuator
US20070102979A1 (en) * 2005-10-25 2007-05-10 GLOBAL TOTAL OFFICE an Ontario limited partnership having GLOBAL UPHOLSTERY CO. Adjustment mechanism for a chair and method for replacing a telescoping cylinder in a reconfigurable chair
US9271573B2 (en) * 2014-04-10 2016-03-01 Dongguan Kentec Office Seating Co., Ltd. Multifunction control device

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DE3335463A1 (en) * 1983-09-30 1985-04-11 Fritz Bauer + Söhne oHG, 8503 Altdorf CARRYING DEVICE FOR SEAT FURNITURE WITH ADJUSTABLE BACKREST SUPPORT AND ADJUSTABLE SEAT

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FR2714804A1 (en) * 1994-01-10 1995-07-13 Goiset Paul Arm chair with adjustable seat and back

Also Published As

Publication number Publication date
SE8503122D0 (en) 1985-06-24
NO169693C (en) 1992-08-12
SE8503122L (en) 1986-12-25
US4838510A (en) 1989-06-13
NO862533D0 (en) 1986-06-24
EP0207916A3 (en) 1987-08-19
CA1280959C (en) 1991-03-05
NO169693B (en) 1992-04-21
DE3665010D1 (en) 1989-09-21
EP0207916B1 (en) 1989-08-16
SE453253B (en) 1988-01-25
NO862533L (en) 1986-12-29

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