EP0671139B1 - Chair - Google Patents

Chair Download PDF

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Publication number
EP0671139B1
EP0671139B1 EP95103298A EP95103298A EP0671139B1 EP 0671139 B1 EP0671139 B1 EP 0671139B1 EP 95103298 A EP95103298 A EP 95103298A EP 95103298 A EP95103298 A EP 95103298A EP 0671139 B1 EP0671139 B1 EP 0671139B1
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EP
European Patent Office
Prior art keywords
chair
frame elements
frame
seat
pin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP95103298A
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German (de)
French (fr)
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EP0671139A1 (en
Inventor
Franz Rüther
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.)
Heinrich Spahn and Co KG Sitzmobelfabrik GmbH
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Heinrich Spahn and Co KG Sitzmobelfabrik GmbH
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Publication of EP0671139A1 publication Critical patent/EP0671139A1/en
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C3/00Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats

Definitions

  • the invention relates to a chair with a angular seat frame, which consists of several frames, which are connected to one another at their end regions and end in a pin arrangement, and with at the corners of the seat frame arranged studs with a Provide slot for receiving the pin assembly are.
  • EP-A-0 169 262 describes a chair of this type which each frame is an outward curved straight continuation and the continuations of abutting frames are interlocked and glued together.
  • the sequels point as projections at the corners of the seat frame located diagonally outward and its end a single one from the ends of two frames formed, circumferentially closed composite pin, the one in a matching slot of each Stollens is introduced.
  • Purpose of the sequels is the displacement of the studs from the contour area of the seat frame so that several chairs can be stacked on top of each other are.
  • the stability of the known chair is sufficient increased stresses, e.g. B. in restaurants, meeting and event rooms and other high-traffic Missions, not.
  • a chair is known from DE 37 12 524 A1, in which the studs are attached directly to the seat.
  • For Attachment are between the studs and the seat inserted essentially triangular corner parts that on the one hand with a tunnel and on the other hand with the Seat are connected.
  • the corner pieces are are separate items that are not in one another Connect. So this chair does not have one Frames joined together on the seat frame so that the Seat must be extremely stable. Therefore the seating options are strong limited.
  • chair in the present case also includes Stool, stool and armchair made up of a square seat frame and exist with this connected gallery.
  • the invention has for its object a chair create the overall through high resilience and durable durability of its joints.
  • each pin arrangement has at least two pins, which are spaced apart and that each pin in an associated single slot of the each gallery is recorded.
  • each frame is one at each end Pin with a vertically oriented rectangular cross-section equipped and the pair of pins adjacent Frames engage a pair of slots in the stud.
  • the end areas of the two side frames bent outwards and on the outer surface of the turn with a mating surface the front and rear frames are joined together and that the spaced pins of the assembled Frames parallel to each other in a horizontal plane lie.
  • the frames can be glued to the mating surface be.
  • the side frames are advantageous with the front and back frames using tabs connected, each bridging the corner and the Form the base of a right triangle. Every tab can be a reinforcement profile, preferably at least have a longitudinal bead.
  • Every tab can be a reinforcement profile, preferably at least have a longitudinal bead.
  • the tab can be made of steel exist and their ends can be in the frame surfaces be sunk. However, they are advantageously on the frame surfaces so that the lower surface of the Seat plate is held at a distance from the frames and a seat cover can be removed or put on can without having to disassemble the seat plate.
  • the side frames run in their central area preferably bent inwards. Everybody kinks Side frames can be in an angular range from 110 ° to 160 °, preferably 158 °.
  • the kink of the side frames stabilizes the seat frame because one elastic deformability results in the tenon joints relieved.
  • the pins of the frame pairings run axially to the main extension of the front and rear frames and the turns of the end portions of the side frames are guided so that the bent end area continuing pins of the side frame to the pin the abutting front or rear frame in parallel runs.
  • the buckling of the side frames also has the advantage that you can see the side frames in a side view of the chair does not see what makes it visually light wins and gets a delicate look. Also allowed the buckling of the side frames a stack of several chairs, which in view of the compact, practically protruding construction of the seating area of the Chair is remarkable.
  • the training according to the invention is for frames and Cleats made of any material. Especially it is advantageous for plywood frames and wooden studs, because of this material for decorative reasons and practically unlimited design options for the Making chairs is popular, however certain Can create stability problems.
  • a chair 1 consists essentially of a square Seat frame 15, at each of its two front corners short stud 7 is attached while on the two rear corners each a longer stud 8 attached is. Between the upper ends of the rear cleats 8 a plate-shaped back cushion 9 is attached. At the illustrated example provides that all Parts of the chair 1 are made of wood.
  • the seat frame 15 is made of plywood.
  • the seat frame 15 is composed essentially of one straight front frame 2 and one parallel to this, also essentially straight rear frame 3 and composed of two side frames 7 and 8.
  • the side frames 7 and 8 are once inward in their central region kinked.
  • the kink angle is preferably approximately 160 °.
  • an axially directed pin 6 is formed, has a rectangular cross-section and is vertical Level is oriented.
  • the pins 6 are to the Longitudinal central axis of the front frame 2 or rear frame 3 laterally offset.
  • the material thickness of the front or Rear frame 2.3 outside of the pin 6 is with a straight or slightly concave curved fitting surface 14 is provided.
  • each side frame 4, 5 are behind turned outside and wear at the end of turn 17 a pin 16, the same shape and size as that Has pin 6. If the outer surface of the turn 17 against the mating surface 14 of the front or rear frame 2,3 is present, the pins 6 and 16 run with mutual Distance parallel to each other. The cohesion the seat frame 15 is by gluing the outer surface the turn 17 reached with the mating surface 14. Furthermore serve four elongated metal tabs 11 of the additional Stabilization. The tabs 11 are so over the corners between the front and rear frames 2,3 and Side frames 4.5 set that they make the base more rectangular Form triangles. For attachment serve through Holes protruding wood screws. The middle of the tab 11 has a longitudinal bead 11 'that the Reinforcement serves. Located in the middle of the bead 11 ' a hole 10. This takes a screw, which connects a seat plate to the seat frame 15.
  • the two spaced-apart pins 6 and 16 are in matching individual slots 12, 13 of the studs 7 and 8 inserted and fastened in this by gluing. Since each peg 6, 16 has five faces with an appropriate number of faces each Slot 12,13 are glued, there is a large Glue surface that the cohesion of the seat frame 15 with increased the studs 7.8 and that in the distribution of Forces is effective.
  • the large-area gluing of the Divide with each other and bridge the corners the tabs 11 ensure high torsional rigidity with slight component training. A certain feather effect mediates the buckling of the side frames 4,5, so that the chair resilient to shocks and torsional forces reacts and the risk of breakage is reduced.
  • the grain of the plywood of the side frames 4,5 runs at the end of the turn 17 corresponding to the Direction of grain of the front frame 2 or Rear frame 3 and this also creates stability of the seat frame and the overall construction of the chair 1 increased.
  • the studs 7 and 8 have in the example shown triangular cross-sectional shape with rounded corners.
  • the Single slots 12, 13 are in the base of the triangle milled in. Because between the two single slots 12,13 a web of material remains, the stud is 7,8 not weakened and in combination with the two pins 6.16 the result is a stable, highly resilient chair structure.

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  • Chairs Characterized By Structure (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

The chair has an angular frame consisting of multiple edge pieces which are connected together bat their ends which have a tenon arrangement. At the corners of the angular frame legs with mortice slots to receive the tenons. Each tenon arrangement consists of at least two tenons (6, 16) fitting into a single slot (12, 13) in the supports (7, 8). The end of each frame-side (2-5) has at least one tenon. In the case of a rectangular seat frame (15), the ends of the two side frame-pieces (4, 5) are bent outwards and assembled on the outer surface of the bend with a matching surface of the front and back frame-pieces (2, 3). The side frame pieces are glued to the front and back frame pieces.

Description

Die Erfindung bezieht sich auf einen Stuhl mit einem eckigen Sitzrahmen, der aus mehreren Zargen besteht, die an ihren Endbereichen miteinander verbunden sind und in einer Zapfenanordnung enden, und mit an den Ecken des Sitzrahmens angeordneten Stollen, die mit einer Schlitzung zur Aufnahme der Zapfenanordnung versehen sind.The invention relates to a chair with a angular seat frame, which consists of several frames, which are connected to one another at their end regions and end in a pin arrangement, and with at the corners of the seat frame arranged studs with a Provide slot for receiving the pin assembly are.

EP-A-0 169 262 beschreibt einen Stuhl dieser Art, bei dem jede Zarge eine nach außen gebogene gerade Fortsetzung hat und die Fortsetzungen aneinanderstoßender Zargen verzahnt und miteinander verleimt sind. Die Fortsetzungen weisen als Vorsprünge an den Ecken des Sitzrahmens diagonal nach außen und ihrem Ende befindet sich jeweils ein einziger aus den Enden zweier Zargen gebildeter, umfangsmäßig geschlossener Verbundzapfen, der in einen einzigen dazu passenden Schlitz des jeweiligen Stollens eingeführt ist. Zweck der Fortsetzungen ist die Verlagerung der Stollen aus dem Konturenbereich des Sitzrahmens, damit mehrere Stühle übereinanderstapelbar sind. Die Stabilität des bekannten Stuhles genügt erhöhten Beanspruchungen, z. B. in Gaststätten, Versammlungs- und Veranstaltungsräumen und bei anderen hochfrequentierten Einsätzen, nicht. Dies ist darauf zurückzuführen, daß der aus jeweils zwei Zargenenden zusammengesetzte Verbundzapfen an jeder Ecke des Sitzrahmens zwar in sich recht kräftig ist, jedoch einen im Verhältnis zum Stollenquerschnitt großen Schlitz im Stollen benötigt, der die Stabilität des Stollens in diesem Bereich stark vermindert. Unter den hohen Belastungs- und Verformungskräften, denen ein Stuhl ausgesetzt ist, können die Stollen an der Verbindung mit dem Sitzrahmen ausbrechen und der Stuhl ist kaputt. Auch ist die nur auf den Umfang des einzigen Verbundzapfens beschränkte Verleimungsfläche an jeder Sitzrahmenecke klein und vermag nicht bei hohen Belastungen, z. B. durch Kippen des Stuhles, einen sicheren Zusammenhalt von Sitzrahmen und Stollen zu gewährleisten. Die Tatsache, daß der Sitzrahmen selbst infolge der Verleimung der Fortsätze an einer flächenvergrößernden Zinkenfräsung ganz kräftig ist, genügt nicht für die Schaffung eines stabilen Stuhles.EP-A-0 169 262 describes a chair of this type which each frame is an outward curved straight continuation and the continuations of abutting frames are interlocked and glued together. The sequels point as projections at the corners of the seat frame located diagonally outward and its end a single one from the ends of two frames formed, circumferentially closed composite pin, the one in a matching slot of each Stollens is introduced. Purpose of the sequels is the displacement of the studs from the contour area of the seat frame so that several chairs can be stacked on top of each other are. The stability of the known chair is sufficient increased stresses, e.g. B. in restaurants, meeting and event rooms and other high-traffic Missions, not. This is due to, that the two frame ends each composite pegs at each corner of the seat frame is quite strong in itself, but one in Relation to the large slot in the tunnel Studs needed, the stability of the stud in greatly reduced this area. Under the high load and deformation forces facing a chair exposed, the studs can be connected to the break out of the seat frame and the chair is broken. Also is only on the circumference of the single composite spigot limited gluing area at each seat frame corner small and cannot withstand high loads, e.g. B. by Tilting the chair, a secure cohesion of Ensure seat frames and studs. The fact, that the seat frame itself due to the gluing of the Extensions on an area-increasing tine milling is quite strong, is not enough to create one stable chair.

Ferner ist aus DE 37 12 524 A1 ein Stuhl bekannt, bei dem die Stollen direkt an der Sitzfläche befestigt sind. Zur Befestigung sind zwischen den Stollen und der Sitzfläche im wesentlichen dreieckförmige Eckteile eingefügt, die einerseits mit einem Stollen und andererseits mit der Sitzfläche verbunden sind. Bei den Eckteilen handelt es sich um separate Einzelteile, die untereinander nicht in Verbindung stehen. Somit weist dieser Stuhl keinen aus Zargen zusammengefügten Sitzrahmen auf, so daß die Sitzfläche äußerst stabil ausgebildet sein muß. Daher sind die Gestaltungsmöglichkeiten der Sitzfläche stark eingeschränkt.Furthermore, a chair is known from DE 37 12 524 A1, in which the studs are attached directly to the seat. For Attachment are between the studs and the seat inserted essentially triangular corner parts that on the one hand with a tunnel and on the other hand with the Seat are connected. The corner pieces are are separate items that are not in one another Connect. So this chair does not have one Frames joined together on the seat frame so that the Seat must be extremely stable. Therefore the seating options are strong limited.

Der Begriff "Stuhl" umfaßt im vorliegenden Falle auch Hocker, Schemel und Sessel, die aus einem eckigen Sitzrahmen und mit diesem verbundenen Stollen bestehen.The term "chair" in the present case also includes Stool, stool and armchair made up of a square seat frame and exist with this connected gallery.

Der Erfindung liegt die Aufgabe zugrunde, einen Stuhl zu schaffen, der sich insgesamt durch hohe Belastbarkeit und dauerhafte Haltbarkeit seiner Verbindungsstellen auszeichnet.The invention has for its object a chair create the overall through high resilience and durable durability of its joints.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß jede Zapfenanordnung mindestens zwei Zapfen aufweist, die mit gegenseitigem Abstand angeordnet sind und daß jeder Zapfen in einem zugeordneten Einzelschlitz des jeweiligen Stollens aufgenommen ist.This object is achieved in that each pin arrangement has at least two pins, which are spaced apart and that each pin in an associated single slot of the each gallery is recorded.

Die beabstandeten Zapfen an jeder Sitzrahmenecke, die in beabstandete Einzelschlitze des jeweiligen Stollens eingreifen, vergrößern die Verleimungsfläche im Stollen, so daß ein fester Zusammenhalt der Teile gewährleistet ist, der hohen Beanspruchungen standhält. Während der bekannte Stuhl zur Verwendung von Stollen mit kreisförmigem Querschnitt zwang, damit möglichst viel Stollenmaterial den Verbundzapfen im Schlitz umgab und durch Massivität ein Ausbruchschutz erreicht wurde, erlaubt der erfindungsgemäße Stuhl den Einsatz beliebiger Querschnittsformen von Stollen. Sogar dreieckige Stollenquerschnitte sind möglich, ohne daß Ausbruchgefahr besteht, weil die nebeneinander und/oder übereinander angeordneten Einzelschlitze durch Materialstege voneinander getrennt sind, die das Materialgefüge des Stollens erhalten, so daß er trotz Schlitzung praktisch ungeschwächt ist. Die Festigkeit der Sitzrahmen-Stollenverbindung erlaubt eine materialsparende Ausbildung eines stabilen Stuhls, so daß er nicht nur preiswert herstellbar, sondern durch leichtes Gewicht auch einfach handhabbar ist.The spaced pegs on each seat frame corner that in spaced-apart individual slots of the respective gallery intervene, enlarge the gluing area in the tunnel, so that a firm cohesion of the parts is guaranteed is able to withstand high loads. While the well-known chair for using studs with forced circular cross section, so as much as possible Stud material surrounded the composite peg in the slot and massive protection against breakouts has been achieved, the chair according to the invention allows the use of any Cross-sectional shapes of studs. Even triangular Stud cross-sections are possible without the risk of breakouts exists because of the side by side and / or on top of each other arranged individual slots through material webs are separated from each other, which is the material structure of the tunnel received, so that it is practical despite slotting is not weakened. The strength of the seat frame-stud connection allows material-saving training a sturdy chair so that it is not only inexpensive producible, but also by light weight is easy to use.

Vorzugsweise ist jede Zarge an jedem Ende mit einem Zapfen mit senkrecht orientiertem rechteckigem Querschnitt ausgestattet und das Zapfenpaar benachbarter Zargen greift in ein Schlitzpaar des Stollens ein.Preferably, each frame is one at each end Pin with a vertically oriented rectangular cross-section equipped and the pair of pins adjacent Frames engage a pair of slots in the stud.

In vorteilhafter Ausgestaltung der Erfindung ist vorgesehen, daß bei einem viereckigen Sitzrahmen die Endbereiche der beiden Seitenzargen nach außen abgebogen und an der Außenfläche der Abbiegung mit einer Paßfläche der Vorder- bzw. Hinterzarge zusammengefügt sind und daß die beabstandeten Zapfen der zusammengefügten Zargen in waagerechter Ebene parallel nebeneinander liegen. Die Zargen können an der Paßfläche verleimt sein. Zusätzlich sind vorteilhafterweise die Seitenzargen mit den Vorder- und Hinterzargen mittels Laschen verbunden, die jeweils die Ecke überbrücken und die Basis eines rechtwinkligen Dreiecks bilden. Jede Lasche kann eine Verstärkungsprofilierung, vorzugsweise mindestens eine längsverlaufende Sicke, aufweisen. Außerdem ist in der Lasche eine Lochung für eine Sitzplattenverschraubung vorgesehen. Die Lasche kann aus Stahl bestehen und ihre Enden können in den Zargenoberflächen versenkt sein. Vorteilhafterweise liegen sie jedoch auf den Zargenoberflächen auf, so daß die Unterfläche der Sitzplatte im Abstand zu den Zargen gehalten ist und ein Sitzplattenbezug abgezogen bzw. aufgezogen werden kann, ohne daß die Sitzplatte demontiert werden muß.In an advantageous embodiment of the invention, that with a square seat frame the end areas of the two side frames bent outwards and on the outer surface of the turn with a mating surface the front and rear frames are joined together and that the spaced pins of the assembled Frames parallel to each other in a horizontal plane lie. The frames can be glued to the mating surface be. In addition, the side frames are advantageous with the front and back frames using tabs connected, each bridging the corner and the Form the base of a right triangle. Every tab can be a reinforcement profile, preferably at least have a longitudinal bead. Furthermore there is a hole in the flap for a seat plate screw connection intended. The tab can be made of steel exist and their ends can be in the frame surfaces be sunk. However, they are advantageously on the frame surfaces so that the lower surface of the Seat plate is held at a distance from the frames and a seat cover can be removed or put on can without having to disassemble the seat plate.

Während die Vorder- und Hinterzargen im wesentlichen gerade sind, verlaufen die Seitenzargen in ihrem Mittelbereich bevorzugt einwärts geknickt. Der knick jeder Seitenzarge kann in einem Winkelbereich von 110° bis 160°, vorzugsweise 158°, verlaufen. Der Knick der Seitenzargen stabilisiert den Sitzrahmen, weil sich eine elastische Verformbarkeit ergibt, die die Zapfenverbindungen entlastet. Die Zapfen der Zargenpaarungen verlaufen axial zur Haupterstreckung der Vorder- und Hinterzarge und die Abbiegungen der Endbereiche der Seitenzargen sind so geführt, daß der den abgebogenen Endbereich fortsetzende Zapfen der Seitenzarge zu dem Zapfen der anstoßenden Vorder- bzw. Hinterzarge parallel verläuft. While the front and back frames essentially are straight, the side frames run in their central area preferably bent inwards. Everybody kinks Side frames can be in an angular range from 110 ° to 160 °, preferably 158 °. The kink of the side frames stabilizes the seat frame because one elastic deformability results in the tenon joints relieved. The pins of the frame pairings run axially to the main extension of the front and rear frames and the turns of the end portions of the side frames are guided so that the bent end area continuing pins of the side frame to the pin the abutting front or rear frame in parallel runs.

Die Einknickung der Seitenzargen hat außerdem den Vorteil, daß man in Seitenansicht des Stuhls die Seitenzargen nicht sieht, wodurch er optisch an Leichtigkeit gewinnt und ein graziles Aussehen erhält. Außerdem erlaubt die Einknickung der Seitenzargen ein Stapeln von mehreren Stühlen, was in Anbetracht des gedrungenen, praktisch vorsprunglosen Aufbaus des Sitzbereiches des Stuhles bemerkenswert ist.The buckling of the side frames also has the advantage that you can see the side frames in a side view of the chair does not see what makes it visually light wins and gets a delicate look. Also allowed the buckling of the side frames a stack of several chairs, which in view of the compact, practically protruding construction of the seating area of the Chair is remarkable.

Die erfindungsgemäße Ausbildung ist für Zargen und Stollen aus beliebigem Material geeignet. Besonders vorteilhaft ist sie für Schichtholzzargen und Holzstollen, weil dieses Material aus dekorativen Gründen und praktisch unbeschränkter Gestaltungsmöglichkeit für die Herstellung von Stühlen beliebt ist, jedoch gewisse Stabilitätsprobleme schaffen kann.The training according to the invention is for frames and Cleats made of any material. Especially it is advantageous for plywood frames and wooden studs, because of this material for decorative reasons and practically unlimited design options for the Making chairs is popular, however certain Can create stability problems.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. Es zeigt:

Fig. 1
einen Stuhl in Rückansicht,
Fig. 2
eine Seitenansicht des Stuhles,
Fig. 3
eine Draufsicht auf einen Sitzrahmen ohne Sitzplatte,
Fig. 4
eine Ecke des Sitzrahmens mit montiertem Stollen und
Fig. 5
eine perspektivische Ansicht eines Sitzrahmens mit vier Stollen, von denen einer separat veranschaulicht ist.
In the drawing, an embodiment of the invention is shown schematically. It shows:
Fig. 1
a chair in rear view,
Fig. 2
a side view of the chair,
Fig. 3
a plan view of a seat frame without a seat plate,
Fig. 4
a corner of the seat frame with mounted studs and
Fig. 5
a perspective view of a seat frame with four studs, one of which is illustrated separately.

Ein Stuhl 1 besteht im wesentlichen aus einem viereckigen Sitzrahmen 15, an dessen zwei vorderen Ecken je ein kurzer Stollen 7 befestigt ist, während an den beiden hinteren Ecken je ein längerer Stollen 8 angebracht ist. Zwischen den oberen Enden der hinteren Stollen 8 ist ein plattenförmiges Rückenpolster 9 befestigt. Bei dem gezeichneten Beispiel ist vorgesehen, daß sämtliche Teile des Stuhles 1 aus Holz bestehen. Der Sitzrahmen 15 ist aus Schichtholz gefertigt.A chair 1 consists essentially of a square Seat frame 15, at each of its two front corners short stud 7 is attached while on the two rear corners each a longer stud 8 attached is. Between the upper ends of the rear cleats 8 a plate-shaped back cushion 9 is attached. At the illustrated example provides that all Parts of the chair 1 are made of wood. The seat frame 15 is made of plywood.

Der Sitzrahmen 15 setzt sich aus einer im wesentlichen geraden Vorderzarge 2 und einer zu dieser parallelen, ebenfalls im wesentlichen geraden Hinterzarge 3 sowie aus zwei Seitenzargen 7 und 8 zusammen. Die Seitenzargen 7 und 8 sind in ihrem Mittelbereich einmal einwärts geknickt. Der Knickwinkel beträgt bevorzugt ca. 160°.The seat frame 15 is composed essentially of one straight front frame 2 and one parallel to this, also essentially straight rear frame 3 and composed of two side frames 7 and 8. The side frames 7 and 8 are once inward in their central region kinked. The kink angle is preferably approximately 160 °.

An den beiden Enden der Vorderzarge 2 und der Hinterzarge 3 ist je ein axial gerichteter Zapfen 6 ausgebildet, der rechteckigen Querschnitt hat und in senkrechter Ebene orientiert ist. Die Zapfen 6 sind zu der Längsmittelachse der Vorderzarge 2 bzw. Hinterzarge 3 seitlich versetzt. Die Materialstärke der Vorder- bzw. Hinterzarge 2,3 außerhalb des Zapfens 6 ist mit einer geraden oder leicht konkav gekrümmten Paßfläche 14 versehen.At the two ends of the front frame 2 and the rear frame 3 an axially directed pin 6 is formed, has a rectangular cross-section and is vertical Level is oriented. The pins 6 are to the Longitudinal central axis of the front frame 2 or rear frame 3 laterally offset. The material thickness of the front or Rear frame 2.3 outside of the pin 6 is with a straight or slightly concave curved fitting surface 14 is provided.

Die beiden Endbereiche jeder Seitenzarge 4,5 sind nach außen abgebogen und tragen am Ende der Abbiegung 17 einen Zapfen 16, der gleiche Form und Größe wie der Zapfen 6 aufweist. Wenn die Außenfläche der Abbiegung 17 gegen die Paßfläche 14 der Vorder- bzw. Hinterzarge 2,3 anliegt, verlaufen die Zapfen 6 und 16 mit gegenseitigem Abstand zueinander parallel. Der Zusammenhalt des Sitzrahmens 15 wird durch Verleimen der Außenfläche der Abbiegung 17 mit der Paßfläche 14 erreicht. Außerdem dienen vier längliche Laschen 11 aus Metall der zusätzlichen Stabilisierung. Die Laschen 11 sind so über die Ecken zwischen Vorder- bzw. Hinterzarge 2,3 und Seitenzargen 4,5 gesetzt, daß sie die Basis rechtwinkliger Dreiecke bilden. Zur Befestigung dienen durch Bohrungen ragende Holzschrauben. Die Mitte der Lasche 11 weist eine längsverlaufende Sicke 11' auf, die der Verstärkung dient. In der Mitte der Sicke 11' befindet sich eine Bohrung 10. Diese nimmt eine Schraube auf, die eine Sitzplatte mit dem Sitzrahmen 15 verbindet.The two end regions of each side frame 4, 5 are behind turned outside and wear at the end of turn 17 a pin 16, the same shape and size as that Has pin 6. If the outer surface of the turn 17 against the mating surface 14 of the front or rear frame 2,3 is present, the pins 6 and 16 run with mutual Distance parallel to each other. The cohesion the seat frame 15 is by gluing the outer surface the turn 17 reached with the mating surface 14. Furthermore serve four elongated metal tabs 11 of the additional Stabilization. The tabs 11 are so over the corners between the front and rear frames 2,3 and Side frames 4.5 set that they make the base more rectangular Form triangles. For attachment serve through Holes protruding wood screws. The middle of the tab 11 has a longitudinal bead 11 'that the Reinforcement serves. Located in the middle of the bead 11 ' a hole 10. This takes a screw, which connects a seat plate to the seat frame 15.

Die beiden voneinander beabstandeten Zapfen 6 und 16 sind in passende Einzelschlitze 12,13 der Stollen 7 und 8 hineingesteckt und in diesen durch Verleimung befestigt. Da jeder Zapfen 6,16 fünf Flächen aufweist, die mit einer entsprechenden Anzahl von Flächen jedes Schlitzes 12,13 verleimt sind, ergibt sich eine große Leimfläche, die den Zusammenhalt des Sitzrahmens 15 mit den Stollen 7,8 erhöht und die bei der Verteilung von Kräften wirksam ist. Die großflächige Verleimung der Teile miteinander und die Überbrückung der Ecken durch die Laschen 11 sorgen für hohe Verwindungssteifigkeit bei leichter Bauteilausbildung. Einen gewissen Federeffekt vermittelt die Einknickung der Seitenzargen 4,5, so daß der Stuhl auf Stöße und Verwindungskräfte nachgiebig reagiert und Bruchgefahr vermindert wird.The two spaced-apart pins 6 and 16 are in matching individual slots 12, 13 of the studs 7 and 8 inserted and fastened in this by gluing. Since each peg 6, 16 has five faces with an appropriate number of faces each Slot 12,13 are glued, there is a large Glue surface that the cohesion of the seat frame 15 with increased the studs 7.8 and that in the distribution of Forces is effective. The large-area gluing of the Divide with each other and bridge the corners the tabs 11 ensure high torsional rigidity with slight component training. A certain feather effect mediates the buckling of the side frames 4,5, so that the chair resilient to shocks and torsional forces reacts and the risk of breakage is reduced.

Die Maserung des Schichtholzes der Seitenzargen 4,5 verläuft am Ende der Abbiegung 17 entsprechend der Laufrichtung der Maserung der Vorderzarge 2 bzw. der Hinterzarge 3 und auch hierdurch wird die Stabilität des Sitzrahmens und der Gesamtkonstruktion des Stuhles 1 erhöht. The grain of the plywood of the side frames 4,5 runs at the end of the turn 17 corresponding to the Direction of grain of the front frame 2 or Rear frame 3 and this also creates stability of the seat frame and the overall construction of the chair 1 increased.

Die Stollen 7 und 8 haben bei dem gezeichneten Beispiel dreieckige Querschnittsform mit abgerundeten Ecken. Die Einzelschlitze 12,13 sind in die Basis des Dreiecks eingefräst. Da zwischen den beiden Einzelschlitzen 12,13 ein Materialsteg verbleibt, ist der Stollen 7,8 ungeschwächt und im Verbund mit den beiden Zapfen 6,16 ergibt sich ein stabiler hochbelastbarer Stuhlaufbau.The studs 7 and 8 have in the example shown triangular cross-sectional shape with rounded corners. The Single slots 12, 13 are in the base of the triangle milled in. Because between the two single slots 12,13 a web of material remains, the stud is 7,8 not weakened and in combination with the two pins 6.16 the result is a stable, highly resilient chair structure.

Claims (12)

  1. A chair with an polygonal seat frame (15) comprising a plurality of frame elements (2-5) interconnected at their end portions and terminating in a pin arrangement,
    and comprising posts (7, 8) arranged at the corners of the seat frame (15) and being provided with a slot for receiving the pin arrangement,
    characterized in
    that each pin arrangement comprises at least two pins (6, 16) spaced apart from each other,
    and that each pin (6, 16) is received in an associated single slot (12, 13) of the respective post (7, 8).
  2. The chair of claim 1, characterized in that each frame elements (2-5) has at least one pin (6, 16) at each end.
  3. The chair of claim 1 or 2, characterized in that with a quadrangular seat frame (15), the end portions of the two lateral frame elements (4, 5) are bent outward and, at the outer surface of the bend (17), are joined at a fitting surface (14) of the front and the rear frame element (2,3), respectively,
    and that the spaced pins (6, 16) of the joined frame elements (2-5) lie in parallel side by side in a horizontal plane.
  4. The chair of claim 3, characterized in that the lateral frame elements (4, 5) are glued to the front and rear frame elements (2, 3) at the fitting surfaces (14).
  5. The chair of one of claims 1 to 4, characterized in that the lateral frame elements (4, 5) are connected with the front and rear frame elements (2, 3) by brackets (11), each bridging the corner and forming the base of a rectangular triangle.
  6. The chair of claim 5, characterized in that each bracket (11) has a reinforcing profile, preferably at least one longitudinally extending bead (11'), and that the bracket (11) is provided with a hole (10) for seat plate screw means.
  7. The chair of one of claim 1 to 6, characterized in that the front and the rear frame elements (2, 3) are substantially straight, and that the lateral frame elements (4, 5) are kinked inward at their central portion.
  8. The chair of claim 7, characterized in that the kinking of each lateral frame element (4, 5) is in an angle range between 110° and 160°.
  9. The chair of one of claims 1 to 8, characterized in that the pins (6, 16) of the frame element pairs extend axial to the main extension of the front and rear frame elements (2, 3).
  10. The chair of one of claims 1 to 9, characterized in that the frame elements (2 - 5) are made of wood, preferably of laminated wood.
  11. The chair of one of claims 1 to 9, characterized in that the frame elements (2-5) are made of aluminium or aluminium alloys.
  12. The chair of one of claims 1 to 9, characterized in that the frame elements (2 - 5) are made of plastics material.
EP95103298A 1994-03-10 1995-03-08 Chair Expired - Lifetime EP0671139B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4407972 1994-03-10
DE4407972 1994-03-10

Publications (2)

Publication Number Publication Date
EP0671139A1 EP0671139A1 (en) 1995-09-13
EP0671139B1 true EP0671139B1 (en) 1998-08-12

Family

ID=6512340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95103298A Expired - Lifetime EP0671139B1 (en) 1994-03-10 1995-03-08 Chair

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Country Link
EP (1) EP0671139B1 (en)
AT (1) ATE169467T1 (en)
DE (1) DE59503104D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20210045U1 (en) * 2002-06-29 2002-09-05 Heinrich Spahn GmbH + Co. KG Sitzmöbelfabrik, 33142 Büren Support frame for furniture

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1613317A (en) * 1925-04-22 1927-01-04 Claude A Epps Chair seat
FR1300834A (en) * 1961-06-26 1962-08-10 Assembly of furniture legs
EP0169262B1 (en) * 1984-07-26 1988-05-18 Rolf Hiller Chair
DE3708991C1 (en) * 1987-03-19 1988-03-10 Kusch Co Sitzmoebel Frame for stacking chairs
DE3712524A1 (en) * 1987-04-13 1988-11-03 Kusch Co Sitzmoebel Piece of seating furniture
DE8716490U1 (en) * 1987-10-13 1988-02-18 Gebr. Thonet GmbH, 6000 Frankfurt Seating

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EP0671139A1 (en) 1995-09-13
DE59503104D1 (en) 1998-09-17
ATE169467T1 (en) 1998-08-15

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