EP0310544A1 - Office chair - Google Patents

Office chair Download PDF

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Publication number
EP0310544A1
EP0310544A1 EP88810510A EP88810510A EP0310544A1 EP 0310544 A1 EP0310544 A1 EP 0310544A1 EP 88810510 A EP88810510 A EP 88810510A EP 88810510 A EP88810510 A EP 88810510A EP 0310544 A1 EP0310544 A1 EP 0310544A1
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EP
European Patent Office
Prior art keywords
seat
chair
armrests
adjustment mechanism
casing
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
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EP88810510A
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German (de)
French (fr)
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EP0310544B1 (en
Inventor
Emil Eberle
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EQUUS MARKETING AG
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EQUUS MARKETING AG
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Publication date
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Priority to AT88810510T priority Critical patent/ATE62797T1/en
Publication of EP0310544A1 publication Critical patent/EP0310544A1/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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/002—Chair or stool bases
    • A47C7/004—Chair or stool bases for chairs or stools with central column, e.g. office chairs

Definitions

  • the present invention relates to a chair, in particular an office or work chair, with a base frame, a seat and a backrest, an adjustment mechanism which has a seat support and a backrest support and, when the inclination of the backrest changes, also causes a change in the inclination of the seat , and a cover for the adjustment mechanism attached to the underside of the seat.
  • CH-PS 524 982 shows a so-called synchronous chair.
  • This has an adjustment mechanism which, when the inclination of the backrest changes, also causes a change in the inclination of the seat and the distance of the seat from the backrest.
  • the adjustment mechanism is enclosed by a formwork, which also serves as a support for the seat.
  • the seat is hinged to the front of the shell by means of a bolt. It proves to be disadvantageous that a change in the inclination of the backrest between the seat and the formwork opens and closes. There is a risk of fingers getting caught.
  • the casing is connected to the seat. The disadvantage here is that a new formwork is necessary each time the chair shape is changed.
  • a chair construction should be found which is much more change-friendly than previous chair designs. The chair designer should no longer be restricted in his freedom of choice of shape by manufacturing constraints. Furthermore, the new chair design should make it possible to largely use the same parts for different chair types and chair families, so that these parts can be efficiently manufactured in large quantities and storage is possible with little space and capital requirements.
  • this is achieved in a chair of the type mentioned at the outset in that the casing only partially covers the seat below.
  • the casing therefore has a smaller diameter than the seat, so that an area around the seat remains practically uncovered.
  • the various seat shapes can also be quickly combined with a variety of different chair frames and different backrest shapes in accordance with fashion trends and / or comfort requirements and other needs.
  • the new chair construction therefore has a high degree of flexibility to adapt to the changing needs of the market.
  • the designer therefore has great freedom in the design of the seat and the backrest.
  • the great freedom of the designer even makes it possible to take the design requests of different customers into account "à la carte” to a certain extent. This is also the case if only small series are ordered. Later deliveries can also be made in small series, if necessary. It is therefore no longer necessary for the economically minded buyer to buy chairs off the shelf.
  • the seat can have a cover that also extends to the underside. This is advantageously done all around. This gives the seat a warmer and more pleasing appearance than is the case with known chairs.
  • the seat is advantageously padded, the padding also extending to the underside of the seat. This ensures that the seat feels soft on all sides and there is no longer any risk of hitting the seat hard with one leg.
  • the casing expediently has recesses running laterally outwards for receiving and fastening armrest supports. This makes it possible to provide the chair with or without armrests as desired.
  • a chair without armrests can also be easily retrofitted with armrests. Existing armrests can also be easily removed if necessary.
  • the invention further relates to a building system for the production of chairs, which is characterized by a plurality of seats with different shapes and colors, but always the same adjustment mechanism and the same formwork are used for the adjustment mechanism.
  • This construction system enables a large number of chairs to be assembled quickly by combining the various components. If armrests with armrests with different lengths are provided, chairs with different armrest distances can also be built.
  • Figure 1 shows a work chair from behind. It has a base frame 11, a seat 13, a backrest 15 and armrests 17.
  • the chair also has an adjustment mechanism 19 which is indicated in FIG. 1 but is not visible.
  • the adjustment mechanism 19 ensures that when the inclination of the backrest 15 changes, the inclination of the seat 13 is also effected.
  • the change in inclination angle of the seat 13 taking place is about half the size of that of the backrest 15.
  • Such an adjustment mechanism is described, for example, in German Utility Model 84 17 429.
  • seat support 21 and backrest support 23 represent parts of the adjustment mechanism 19.
  • the casing 25 of the adjustment mechanism 19 is fastened to the underside of the seat 13.
  • the casing 25 will now be described in more detail. It has a round shape, but could also have a polygonal or oval shape, for example.
  • the casing 25 is dimensioned such that it only partially covers the seat 13, 13 '.
  • the plate-shaped casing 25 has a protuberance 27 which accommodates the adjustment mechanism 19 serves.
  • the opening 29 serves to pass through the column 31 (FIG. 1).
  • the opening 33 serves to receive an adjustment button with which the spring force of the adjustment mechanism can be changed.
  • the holes 35 and 36 of the cover 25 serve to fasten the cover 25 by means of screws 39. These screws 39 pass through the holes 37, 38 of the seat support 21 (FIG. 4) and are screwed tightly to the core 41 of the seat 13, so that the casing 25, seat support 21 and seat 13 are firmly connected.
  • the core 41 can have insert nuts (not shown) for receiving the screws 39.
  • the seat 13 has a core 41, e.g. made of wood, upholstery 43, e.g. made of foam plastic, and a cover 45 made of textile material or leather.
  • the cover 45 or the padding 43 also extends at the edges to the underside of the core 41.
  • each armrest 17 has a front and a rear armrest support, but only the rear armrest support 51 is visible in FIG. 1.
  • the armrests are also attached using screws (not shown). These screws pass through holes 53, 54 in the casing 25 and holes 55, 56 in the seat support and are firmly screwed to the core 41.
  • the core 41 can have insert nuts for receiving these screws.
  • the construction described enables a chair without an armrest to be easily retrofitted with armrests by the buyer. It is also possible to retrofit a chair so that the distance between the two armrests 17 is greater. For this purpose, the standard armrests are replaced by armrests with longer armrest supports 51.

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  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

The seat (13, 13') with the adjusting mechanism (19) is always covered at the bottom by the same covering board (25) independently of the seat shape, which allows a great variety in shape of the seat. Said covering board is screwed to the seat (13, 13') or the seat support (21). Armrests can be fitted or exchanged easily. Indentations (47, 49), extending laterally outwards in the covering board, are provided for receiving said armrests. <IMAGE>

Description

Die vorliegende Erfindung betrifft einen Stuhl, insbesondere einen Büro- oder Arbeitsstuhl, mit einem Fussgestell, einem Sitz und einer Rückenlehne, einem Verstellmechanismus, welcher einen Sitzträger und einen Rückenlehnenträger auf­weist und bei einer Veränderung der Neigung der Rückenlehne auch eine Veränderung der Neigung des Sitzes bewirkt, und einer an der Unterseite des Sitzes befestigten Verschalung für den Verstellmechanismus.The present invention relates to a chair, in particular an office or work chair, with a base frame, a seat and a backrest, an adjustment mechanism which has a seat support and a backrest support and, when the inclination of the backrest changes, also causes a change in the inclination of the seat , and a cover for the adjustment mechanism attached to the underside of the seat.

In den letzten Jahren haben Modeströmungen immer weitere Ge­biete erfasst, die bisher praktisch frei von solchen Strö­mungen waren. Des weiteren finden immer häufigere und ra­schere Wechsel dieser Strömungen statt. Auch das Gebiet der Stühle ist davon nicht verschont geblieben und stellt die Stuhlhersteller vor erhebliche Probleme. Einerseits se­hen sich die Stuhlhersteller gezwungen, sich den Mode­strömungen anzupassen und Produkte zu fabrizieren, die vom Markt verlangt werden, andererseits müssen sie auch ver­suchen, die Herstellungskosten im Griff zu behalten, um nicht preislich aus dem Markt gedrängt zu werden. Diese Erfordernisse widersprechen sich. Um die Herstellungskosten möglichst tief zu halten, sind grosse Serien erforderlich, welche die Verwendung von Spritzformen ermöglichen. Spritz­formen sind Aber sehr teuer. Wenn somit ein Stuhlmodell schneller als erwartet aus der Mode gerät, so erweisen sich die hohen Investitionen für die Herstellung der Spritzformen als Fehlinvestitionen. Um die Gefahr solcher Fehlinvestitionen zu vermeiden, finden nun bei der Stuhl­fabrikation vielfach Tiefziehwerkzeuge statt Spritzformen Verwendung. Tiefziehwerkzeuge sind billiger als Spritz­formen, aber die damit hergestellten Teile kommen wesent­lich teurer zu stehen als in grossen Mengen gespritzte Teile.In recent years, fashion currents have covered more and more areas that were previously practically free of such currents. Furthermore, there are more and more frequent and rapid changes in these currents. The area of chairs has also not been spared and presents the chair manufacturers with considerable problems. On the one hand, the chair manufacturers are forced to adapt to the current trends and to manufacture products that are required by the market, on the other hand they also have to try to keep the manufacturing costs under control in order not to be forced out of the market in terms of price. These requirements contradict each other. In order to keep the manufacturing costs as low as possible, large series are required which enable the use of injection molds. Injection molds are very expensive. If a chair model goes out of style faster than expected, the high investments in the manufacture of injection molds will prove to be bad investments. In order to avoid the risk of such bad investments, deep drawing tools are now used instead of injection molds in the manufacture of chairs. Thermoformed tools are cheaper than injection molds, but the parts made with them are much more expensive than parts that are injection molded in large quantities.

Die CH-PS 524 982 zeigt einen sogenannten Synchronstuhl. Dieser weist einen Verstellmechanismus auf, welcher bei einer Veränderung der Neigung der Rückenlehne auch eine Veränderung der Neigung des Sitzes und des Abstandes des Sitzes von der Rückenlehne bewirkt. Der Verstellmechanismus wird von einer Verschalung umschlossen, die zugleich als Stütze für den Sitz dient. Der Sitz ist vorn an der Schale mittels eines Bolzens angelenkt. Nachteilig erweist sich dabei, dass bei einer Veränderung der Neigung der Rücken­lehne zwischen Sitz und Verschalung ein Spalt sich öffnet und schliesst. Dabei besteht die Gefahr eines Ein­klemmens der Finger. Bei neueren Stühlen ist die Verschalung mit dem Sitz verbunden. Nachteilig ist dabei, dass bei jeder Aenderung der Stuhlform eine neue Verschalung not­wendig wird. Durch diese Vielzahl von Verschalungen er­geben sich aber erhebliche Lager- und Ersatzteilprobleme. Es wird erwartet, dass der Stuhlhersteller auch für Stühle, die nicht mehr hergestellt werden, noch längere Zeit Er­satzteile für Reparaturen an Lager hält. Diese Lager nehmen daher stark zu. Nun erschweren aber grosse Lager mit vielen Teilpositionen die rationelle Lagerbewirtschaftung und blockieren auch viel Raum und Kapital, welche für andere Zwecke eingesetzt werden könnten.CH-PS 524 982 shows a so-called synchronous chair. This has an adjustment mechanism which, when the inclination of the backrest changes, also causes a change in the inclination of the seat and the distance of the seat from the backrest. The adjustment mechanism is enclosed by a formwork, which also serves as a support for the seat. The seat is hinged to the front of the shell by means of a bolt. It proves to be disadvantageous that a change in the inclination of the backrest between the seat and the formwork opens and closes. There is a risk of fingers getting caught. In newer chairs, the casing is connected to the seat. The disadvantage here is that a new formwork is necessary each time the chair shape is changed. However, due to this large number of cladding, considerable storage and spare parts problems arise. It is expected that the chair manufacturer will keep spare parts for repairs in stock for chairs that are no longer manufactured. These camps are therefore increasing rapidly. Now, however, large warehouses with many subitems make rational warehouse management difficult and also block a lot of space and capital that could be used for other purposes.

Es ist Aufgabe der vorliegenden Erfindung, bei einem Stuhl der eingangs erwähnten Art, die vorher angeführten Nach­teile mindestens teilweise zu vermeiden. Es sollte eine Stuhlkonstruktion gefunden werden, welche wesentlich änderungsfreundlicher als bisherige Stuhlkonstruktionen ist. Der Stuhldesigner sollte nicht mehr wie bisher durch fabri­katorische Zwänge in seiner Freiheit der Formenwahl be­schränkt sein. Ferner sollte die neue Stuhlkonstruktion es ermögLichen, für verschiedene Stuhlarten und Stuhl­familien weitgehend die gleichen Teile zu verwenden, damit diese Teile iN hohen Stückzahlen rationell gefertigt wer­den können und eine Lagerhaltung mit geringem Platz- und Kapitalbedarf möglich ist.It is an object of the present invention to at least partially avoid the aforementioned disadvantages in a chair of the type mentioned at the outset. A chair construction should be found which is much more change-friendly than previous chair designs. The chair designer should no longer be restricted in his freedom of choice of shape by manufacturing constraints. Furthermore, the new chair design should make it possible to largely use the same parts for different chair types and chair families, so that these parts can be efficiently manufactured in large quantities and storage is possible with little space and capital requirements.

Erfindungsgemäss wird dies bei einem Stuhl der eingangs er­wähnten Art dadurch erreicht, dass die Verschalung den Sitz unten nur teilweise abdeckt. Die Verschalung hat also einen kleineren Durchmesser als der Sitz, so dass am Sitz praktisch ringsum ein Bereich unabgedeckt bleibt.According to the invention, this is achieved in a chair of the type mentioned at the outset in that the casing only partially covers the seat below. The casing therefore has a smaller diameter than the seat, so that an area around the seat remains practically uncovered.

Dank der beschriebenen Formgebung der Verschalung sind eine Vielzahl von Sitzformen möglich, ohne dass die Verschalung abgeändert werden müsste. Die verschiedenen Sitzformen können auch entsprechend den Modeströmungen und/oder den Komforterfordernissen und anderen Bedürfnissen rasch mit einer Vielzahl von verschiedenen Stuhlgestellen und ver­schiedenen Rückenlehnenformen kombiniert werden. Die neue Stuhlkonstruktion besitzt also eine hohe Flexibilität zur Anpassung an die sich ändernden Wünsche des Marktes. Der Designer hat deshalb eine grosse Freiheit in der Ausgestal­tung des Sitzes und der Rückenlehne. Die grosse Freiheit des Designers ermöglicht es sogar, Designwünsche verschie­dener Kunden gewissermassen "à la carte" zu berücksichtigen. Dies ist auch dann der Fall, wenn nur kleine Serien bestellt werden. Es können gegebenenfalls auch später Nachlieferungen in kleinen Serien erfolgen. Es ist somit für den wirtschaft­lich denkenden Käufer nicht mehr nötig, Stühle von der Stange zu kaufen. Der Besteller hat es vielmehr in der Hand, ohne erheblichen Mehrpreis sich Stühle zu beschaffen, die sozu­sagen seine individuelle Handschrift tragen und das Image des Betriebes widerspiegeln, in welchem sie zur Anwendung gelangen. Trotz der grossen möglichen Formenvielfalt können bei allen Stühlen sehr viele gleiche Teile verwendet werden, was eine rationelle und billige Fertigung und Lager­haltung ermöglicht.Thanks to the shape of the formwork described, a large number of seat shapes are possible without having to change the formwork. The various seat shapes can also be quickly combined with a variety of different chair frames and different backrest shapes in accordance with fashion trends and / or comfort requirements and other needs. The new chair construction therefore has a high degree of flexibility to adapt to the changing needs of the market. The designer therefore has great freedom in the design of the seat and the backrest. The great freedom of the designer even makes it possible to take the design requests of different customers into account "à la carte" to a certain extent. This is also the case if only small series are ordered. Later deliveries can also be made in small series, if necessary. It is therefore no longer necessary for the economically minded buyer to buy chairs off the shelf. Rather, the customer has it in his hand to procure chairs without significant additional cost, which carry his individual signature, so to speak, and reflect the image of the company in which they are used. Despite the large possible variety of shapes, many identical parts can be used in all chairs, which enables rational and cheap production and storage.

Der Sitz kann einen Ueberzug aufweisen, der sich auch auf die Unterseite erstreckt. Dies erfolgt vorteilhaft ringsum. Dadurch erhält der Sitz ein wärmeres und gefälligeres Aus­sehen als dies bei bekannten Stühlen der Fall ist. Vorteil­haft ist dabei der Sitz gepolstert, wobei sich die Polsterung auch auf die Unterseite des Sitzes erstreckt. Dadurch wird bewirkt, dass sich der Sitz auf allen Seiten weich anfühlt und keine Gefahr mehr besteht, dass man mit einem Bein am Sitz hart anstösst.The seat can have a cover that also extends to the underside. This is advantageously done all around. This gives the seat a warmer and more pleasing appearance than is the case with known chairs. The seat is advantageously padded, the padding also extending to the underside of the seat. This ensures that the seat feels soft on all sides and there is no longer any risk of hitting the seat hard with one leg.

Zweckmässigerweise weist die Verschalung seitlich nach aussen laufende Vertiefungen zur Aufnahme und Befestigung von Armlehnenträgern auf. Dies ermöglicht es, nach Wunsch den Stuhl mit oder ohne Armlehnen zu versehen. Ein Stuhl ohne Armlehnen kann auch leicht mit Armlehnen nachgerüstet werden. Ferner können bestehende Armlehnen bei Bedarf auch leicht entfernt werden.The casing expediently has recesses running laterally outwards for receiving and fastening armrest supports. This makes it possible to provide the chair with or without armrests as desired. A chair without armrests can also be easily retrofitted with armrests. Existing armrests can also be easily removed if necessary.

Die Erfindung betrifft ferner ein Bausystem zur Herstellung von Stühlen, welches gekennzeichnet ist durch eine Vielzahl von Sitzen mit verschiedenen Formen und Farben, wobei je­doch immer der gleiche Verstellmechanismus und die gleiche Verschalung für den Verstellmechanismus Anwendung finden. Dieses Bausystem ermöglicht eine rasche Montage einer grossen Vielzahl von Stühlen durch Kombination der verschie­denen Bauteile. Wenn Armlehnen mit verschieden langen Arm­lehnenträgern vorgesehen werden, können auch Stühle mit verschiedenen Armlehnenabständen gebaut werden.The invention further relates to a building system for the production of chairs, which is characterized by a plurality of seats with different shapes and colors, but always the same adjustment mechanism and the same formwork are used for the adjustment mechanism. This construction system enables a large number of chairs to be assembled quickly by combining the various components. If armrests with armrests with different lengths are provided, chairs with different armrest distances can also be built.

Ausführungsbeispiele der Erfindung werden nun unter Bezug­nahme auf die Zeichnungen beschrieben. Es zeigt:

  • Figur 1 einen Arbeitsstuhl gemäss einem Ausführungs­beispiel der Erfindung von hinten gesehen,
  • Figur 2 eine Ansicht der Verschalung für den Ver­stellmechanismus von unten gesehen,
  • Figur 3 eine Ansicht der Verschalung von Figur 2, wobei zusätzlich noch der Sitz im Schnitt eingezeichnet ist,
  • Figur 4 und 5 je eine Ansicht auf den Verstellmechanismus und die Verschalung von oben, aber mit ver­schiedenen Sitzformen.
Embodiments of the invention will now be described with reference to the drawings. It shows:
  • FIG. 1 seen a work chair according to an embodiment of the invention from behind,
  • FIG. 2 shows a view of the casing for the adjustment mechanism from below,
  • FIG. 3 shows a view of the casing of FIG. 2, the seat also being shown in section,
  • Figures 4 and 5 each have a view of the adjustment mechanism and the formwork from above, but with different seat shapes.

Figur 1 zeigt einen Arbeitsstuhl von hinten. Er besitzt ein Fussgestell 11, einen Sitz 13, eine Rückenlehne 15 und Armlehnen 17. Der Stuhl weist ferner einen Verstell­mechanismus 19 auf, der in Figur 1 angedeutet aber nicht sichtbar ist. Der Verstellmechanismus 19 sorgt dafür, dass bei einer Veränderung der Neigung der Rückenlehne 15 auch eine Veränderung der Neigung des Sitzes 13 be­wirkt wird. Die dabei stattfindende Neigungswinkelver­änderung des Sitzes 13 ist etwa halb so gross wie jene der Rückenlehne 15. Ein solcher Verstellmechanismus wird beispielsweise im deutschen Gebrauchsmuster 84 17 429 beschrieben. Wie Figur 4 zeigt, stellen Sitzträger 21 und Rückenlehnenträger 23 Teile des Verstellmechanismus 19 dar. Die Verschalung 25 des Verstellmechanismus 19 ist an der Unterseite des Sitzes 13 befestigt.Figure 1 shows a work chair from behind. It has a base frame 11, a seat 13, a backrest 15 and armrests 17. The chair also has an adjustment mechanism 19 which is indicated in FIG. 1 but is not visible. The adjustment mechanism 19 ensures that when the inclination of the backrest 15 changes, the inclination of the seat 13 is also effected. The change in inclination angle of the seat 13 taking place is about half the size of that of the backrest 15. Such an adjustment mechanism is described, for example, in German Utility Model 84 17 429. As FIG. 4 shows, seat support 21 and backrest support 23 represent parts of the adjustment mechanism 19. The casing 25 of the adjustment mechanism 19 is fastened to the underside of the seat 13.

Unter Bezugnahme auf die Figuren 2 bis 4 wird nun die Ver­schalung 25 näher beschrieben. Sie hat eine runde Form, könnte aber auch beispielsweise eine vieleckige oder ovale Form besitzen. Wie die Figuren 4 und 5 zeigen, ist die Verschalung 25 so bemessen, dass sie den Sitz 13, 13′ nur teilweise abdeckt.Wie insbesondere aus Figur 3 ersichtlich ist, weist die tellerförmige Verschalung 25 eine Aus­stülpung 27 auf, die der Aufnahme des Verstellmechanismus 19 dient. Die Oeffnung 29 dient der Durchführung der Säule 31 (Fig. 1). Die Oeffnung 33 dient der Aufnahme eines Ver­stellknopfes, mit welchem die Federkraft des Verstellme­chanismus veränderbar ist. Die Löcher 35 und 36 der Ab­deckung 25 dienen der Befestigung der Abdeckung 25 mittels Schrauben 39. Diese Schrauben 39 führen dabei durch die Löcher 37, 38 des Sitzträgers 21 (Fig. 4) und sind fest mit dem Kern 41 des Sitzes 13 verschraubt, so dass Verschalung 25, Sitzträger 21 und Sitz 13 fest miteinander verbunden sind. Der Kern 41 kann zur Aufnahme der Schrauben 39 Ein­satzmuttern (nicht dargestellt) aufweisen.With reference to Figures 2 to 4, the casing 25 will now be described in more detail. It has a round shape, but could also have a polygonal or oval shape, for example. As FIGS. 4 and 5 show, the casing 25 is dimensioned such that it only partially covers the seat 13, 13 '. As can be seen in particular from FIG. 3, the plate-shaped casing 25 has a protuberance 27 which accommodates the adjustment mechanism 19 serves. The opening 29 serves to pass through the column 31 (FIG. 1). The opening 33 serves to receive an adjustment button with which the spring force of the adjustment mechanism can be changed. The holes 35 and 36 of the cover 25 serve to fasten the cover 25 by means of screws 39. These screws 39 pass through the holes 37, 38 of the seat support 21 (FIG. 4) and are screwed tightly to the core 41 of the seat 13, so that the casing 25, seat support 21 and seat 13 are firmly connected. The core 41 can have insert nuts (not shown) for receiving the screws 39.

Wie Figur 3 zeigt, weist der Sitz 13 einen Kern 41, z.B. aus Holz, eine Polsterung 43, z.B. aus Schaumkunststoff, und einen Ueberzug 45 aus Textilmaterial oder Leder auf. Der Ueberzug 45 bzw. die Polsterung 43 erstreckt sich auch an den Rändern auf die Unterseite des Kerns 41.As Figure 3 shows, the seat 13 has a core 41, e.g. made of wood, upholstery 43, e.g. made of foam plastic, and a cover 45 made of textile material or leather. The cover 45 or the padding 43 also extends at the edges to the underside of the core 41.

An der Verschalung 25 sind seitlich Vertiefungen 47, 49 zur Aufnahme und Befestigung der z.B. rohrförmigen Arm­lehnenträger 51 (Fig. 1) vorgesehen. Jede Armlehne 17 besitzt einen vorderen und einen hinteren Armlehnenträger, wobei jedoch in Figur 1 nur der hintere Armlehnenträger 51 sichtbar ist. Die Befestigung der Armlehnen erfolgt eben­falls mittels Schrauben (nicht eingezeichnet). Diese Schrauben führen durch Löcher 53, 54 in der Verschalung 25 und die Löcher 55, 56 im Sitzträger und sind fest mit dem Kern 41 verschraubt. Der Kern 41 kann zur Aufnahme dieser Schrauben Einsatzmuttern aufweisen.On the casing 25 there are recesses 47, 49 on the side for receiving and fastening the e.g. tubular armrest support 51 (Fig. 1) is provided. Each armrest 17 has a front and a rear armrest support, but only the rear armrest support 51 is visible in FIG. 1. The armrests are also attached using screws (not shown). These screws pass through holes 53, 54 in the casing 25 and holes 55, 56 in the seat support and are firmly screwed to the core 41. The core 41 can have insert nuts for receiving these screws.

Die beschriebene Konstruktion ermöglicht es, dass ein Stuhl ohne Armlehne nachträglich mit Leichtigkeit auch durch den Käufer mit Armlehnen nachgerüstet werden kann. Es ist auch möglich, nachträglich einen Stuhl so umzu­rüsten, dass der Abstand zwischen den beiden Armlehnen 17 grösser ist. Zu diesem Zweck werden die Standardarm­lehnen durch Armlehnen mit längeren Armlehnenträgern 51 ersetzt.The construction described enables a chair without an armrest to be easily retrofitted with armrests by the buyer. It is also possible to retrofit a chair so that the distance between the two armrests 17 is greater. For this purpose, the standard armrests are replaced by armrests with longer armrest supports 51.

Claims (6)

1. Stuhl, insbesondere Büro- oder Arbeitsstuhl, mit einem Fussgestell (11), einem Sitz (13, 13′), einer Rückenlehne (15), einem Verstellmechanismus (19), welcher einen Sitz­träger (21) und einen Rückenlehnenträger (23) aufweist und bei einer Veränderung der Neigung der Rückenlehne (15) auch eine Veränderung der Neigung des Sitzes (13, 13′) bewirkt, und einer an der Unterseite des Sitzes (13, 13′) befestigten Verschalung (25) für den Verstellmechanismus (19), dadurch gekennzeichnet, dass die Verschalung (25) den Sitz (13, 13′) unten nur teilweise abdeckt.1. Chair, in particular office or work chair, with a base frame (11), a seat (13, 13 '), a backrest (15), an adjustment mechanism (19) which has a seat support (21) and a backrest support (23) has and with a change in the inclination of the backrest (15) also causes a change in the inclination of the seat (13, 13 '), and on the underside of the seat (13, 13') attached formwork (25) for the adjustment mechanism (19th ), characterized in that the casing (25) only partially covers the seat (13, 13 ′) below. 2. Stuhl nach Anspruch 1, dadurch gekennzeichnet, dass der Sitz (13, 13′) einen Ueberzug (45) aufweist, der sich auch auf die Unterseite des Sitzes (13, 13′) erstreckt.2. Chair according to claim 1, characterized in that the seat (13, 13 ') has a cover (45) which also extends to the underside of the seat (13, 13'). 3. Stuhl nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Sitz (13, 13′) gepolstert ist und dass sich die Polsterung (43) auch auf die Unterseite des Sitzes (13) hin erstreckt.3. Chair according to claim 1 or 2, characterized in that the seat (13, 13 ') is upholstered and that the upholstery (43) also extends to the underside of the seat (13). 4. Stuhl nach einem der Ansprüche 1 bis 3, mit von Arm­lehnenträgern (51) getragenen Armlehnen (17), dadurch gekennzeichnet, dass die Verschalung (25) seitlich nach aussen laufende Vertiefungen (47, 49) zur Aufnahme und Befestigung der Armlehnenträger (51) aufweist.4. Chair according to one of claims 1 to 3, with armrests (17) carried armrests (17), characterized in that the casing (25) laterally outwardly extending recesses (47, 49) for receiving and fastening the armrest support (51 ) having. 5. Bausystem zur Herstellung von Stühlen, gekennzeichnet durch eine Vielzahl von Sitzen (13, 13′) mit verschiedenen Formen und Farben, wobei jedoch immer der gleiche Verstell­mechanismus (19) und die gleiche Verschalung (25) für den Verstellmechanismus (19) Anwendung findet.5. Building system for the manufacture of chairs, characterized by a plurality of seats (13, 13 ') with different shapes and colors, but always the same adjustment mechanism (19) and the same casing (25) for the adjustment mechanism (19) is used . 6. Bausystem nach Anspruch 5, gekennzeichnet durch Arm­lehnen (17) mit verschieden langen Armlehnenträgern (51) zum Bau von Stühlen mit verschiedenen Armlehnenabständen.6. Building system according to claim 5, characterized by armrests (17) with armrests of different lengths (51) for the construction of chairs with different armrest distances.
EP88810510A 1987-09-28 1988-07-25 Office chair Expired - Lifetime EP0310544B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810510T ATE62797T1 (en) 1987-09-28 1988-07-25 CHAIR, ESPECIALLY AN OFFICE OR WORK CHAIR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3741/87 1987-09-28
CH374187 1987-09-28

Publications (2)

Publication Number Publication Date
EP0310544A1 true EP0310544A1 (en) 1989-04-05
EP0310544B1 EP0310544B1 (en) 1991-04-24

Family

ID=4262500

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810510A Expired - Lifetime EP0310544B1 (en) 1987-09-28 1988-07-25 Office chair

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Country Link
EP (1) EP0310544B1 (en)
AT (1) ATE62797T1 (en)
DE (1) DE3862556D1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589772A (en) * 1969-01-23 1971-06-29 Steelcase Inc Chair
CH524982A (en) * 1970-05-20 1972-07-15 Stella Werke Ag Work chair
FR2489680A1 (en) * 1980-09-08 1982-03-12 Modern Tube Sa Height adjustment mechanism for seat - consists of hydraulic jack with seat mounted mobile part which is operated by two levers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589772A (en) * 1969-01-23 1971-06-29 Steelcase Inc Chair
CH524982A (en) * 1970-05-20 1972-07-15 Stella Werke Ag Work chair
FR2489680A1 (en) * 1980-09-08 1982-03-12 Modern Tube Sa Height adjustment mechanism for seat - consists of hydraulic jack with seat mounted mobile part which is operated by two levers

Also Published As

Publication number Publication date
ATE62797T1 (en) 1991-05-15
DE3862556D1 (en) 1991-05-29
EP0310544B1 (en) 1991-04-24

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