EP1410740A1 - Component for a chair - Google Patents
Component for a chair Download PDFInfo
- Publication number
- EP1410740A1 EP1410740A1 EP02023145A EP02023145A EP1410740A1 EP 1410740 A1 EP1410740 A1 EP 1410740A1 EP 02023145 A EP02023145 A EP 02023145A EP 02023145 A EP02023145 A EP 02023145A EP 1410740 A1 EP1410740 A1 EP 1410740A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- component according
- legs
- link
- pawl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 3
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 229920006324 polyoxymethylene Polymers 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims 2
- 238000000465 moulding Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C5/00—Chairs of special materials
- A47C5/04—Metal chairs, e.g. tubular
- A47C5/06—Special adaptation of seat upholstery or fabric for attachment to tubular chairs
Definitions
- the invention relates to the field of furniture, in particular chairs in which one Seat shell fixed with a frame made of tubular legs connected is.
- the known chairs must have as few individual parts as possible include, and these items must be easy to produce, ship and be assembled. At the same time, the assembled chairs also have to be have an aesthetically pleasing appearance, and should not be too high own weight.
- individual parts can be produced, shipped, stored and cost-effectively can be assembled, but on the other hand the assembled chair also aesthetically appealing and stable.
- the essence of the invention is the idea of connecting the seat shell with the Leg frame to provide a component made of an elastic plastic is made, which is elastic enough that is correspondingly smaller Wall thickness for the legs and the handle for the Linking link can be opened or moved, but also one has sufficient strength to be suitable for a more constructive Design, in particular the wavy opening slot of the Leg attachment, a stable connection of the frame to the seat shell guarantee.
- Fig.1 the four tubular legs 1 of a chair frame are shown.
- Two Legs 1 each consist of a bent tube, and the two tubes are connected in the middle, preferably welded.
- the components have passages 2 through which at Assembly of the seat shell screws 3 are performed.
- the seat shell is there for example made of wood, and has embedded nuts on the underside, into which the screws 3 are screwed.
- the receptacles 4 have a non-straight, wavy slot 5 at the top, which overlaps the upper middle straight line of the leg tube 1 on both sides. As a result, the assembled seat shell presses the material of the component onto both Sides of the middle straight line on the leg tube.
- the stack guard 6 is attached to the underside of the receptacle 4. He points Grooves with an undercut in which the ribs 7 on the receptacle 4 engage.
- the rod-shaped are on the two outer sides of the chair frame Linking elements 8 shown.
- the two links 8 are in the Recesses 9 inserted.
- the left link 8 in the figure has one in the front Hook 13, the right one has a recess 14.
- When linked with a The neighboring chair then engages the hook 13 in the recess of the Linking link of the neighboring chair, or the hook of the Linking link of the neighboring chair into the recess 14.
- the wavy slot 5 of the left receptacle 4 is opened by bending down the left end of the component according to the invention.
- the material of the component is an elastic thermoplastic with an elastic modulus (elastic modulus) of maximum 3500 N / mm 2 .
- the lower limit for the modulus of elasticity is expediently 2000 N / mm 2 , the yield stress (tensile strength) should be greater than 50 N / mm 2 . (For the definition of the modulus of elasticity see DIN 53 457, the yield stress DIN 53 455).
- the receptacle 4 can be bent because of the suitably thin wall thickness, although the remaining part of the component, in particular also due to the ribbing, is highly stable.
- the tubular leg 1 can be inserted into the opened receptacle 4.
- Figure 4 is the interaction of the link 8 with the Component according to the invention shown. As can be seen, the recess 9 provided below a pawl 10. Their connection to the component is again included dimensioned so small that it is mobile.
- the link 8 can be moved in the recess 9 and in two Positions can be fixed.
- link 8 In one position, link 8 is fully inserted. Then it is invisible completely under the seat shell and is fixed in that the pawl 10 in the Locking opening 12 engages.
- the chaining When extended, the chaining can be done with a neighboring chair. In this position, the surface of the locking lug 11 lies against the surface 10. It is the dimensioning of the pawl 10 and the locking lug 11 such that the Withstand elements of the tensile force generated by the chain of chairs.
- the component and interlinking link are made of POM (polyoxymethylene) plastic with the above-mentioned values for modulus of elasticity and yield stress, i.e. modulus of elasticity ⁇ 3500 N / mm 2 and ⁇ 2000 N / mm 2 , and yield stress ⁇ 50 N / mm 2nd
- modulus of elasticity ⁇ 3500 N / mm 2 and ⁇ 2000 N / mm 2
- yield stress ⁇ 50 N / mm 2nd the elasticity and strength properties according to the invention are achieved, on the other hand, the component and interlinking element can simply be produced by the injection molding process.
- PP polypropylene
- a yield stress of greater than or equal to 30 N / mm 2 could also be used.
Landscapes
- Chairs Characterized By Structure (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Die Erfindung betrifft das Gebiet der Möbel, insbesondere Stühle bei denen eine Sitzschale fest mit einem aus rohrförmigen Beinen bestehenden Gestell verbunden ist.The invention relates to the field of furniture, in particular chairs in which one Seat shell fixed with a frame made of tubular legs connected is.
Stühle, bei denen die Sitzschale fest mit einem aus rohrförmigen Beinen bestehenden Gestell verbunden sind, sind seit langem bekannt. Es ist auch bekannt, solche Stühle zu Sitzreihen zu verketten, beispielsweise in Versammlungssälen.Chairs where the seat shell is fixed with a tubular legs existing frame are connected, have long been known. It is also known to chain such chairs to rows of seats, for example in Meeting halls.
Doch auch solche an sich konventionellen Produkte unterliegen fortlaufend dem Zwang, einerseits qualitativ verbessert zu werden, andererseits durch Senkung der Produktions-, Versand- und Montagekosten ständig verbilligt zu werden. Dies kann durch produktionsorientierte Vereinfachung der Konstruktion erreicht werden, aber auch und zusätzlich durch den Einsatz moderner Konstruktionsund Produktions-Hilfsmittel, z.B. Computer, und verbesserter Werkstoffe, z.B. Kunststoffe. But even such conventional products are continuously subject to this Forced to be qualitatively improved on the one hand, and by lowering on the other the production, shipping and assembly costs are constantly reduced. This can be achieved through production-oriented simplification of the design but also and additionally through the use of modern construction and Production aids, e.g. Computers, and improved materials, e.g. Plastics.
Im einzelnen müssen die bekannten Stühle möglichst wenige Einzelteile umfassen, und müssen diese Einzelteile einfach zu produzieren, zu versenden und zu montieren sein. Gleichzeitig müssen die montierten Stühle aber auch ein ästhetisch ansprechendes Erscheinungsbild haben, und sollten kein allzu hohes gewicht besitzen.In particular, the known chairs must have as few individual parts as possible include, and these items must be easy to produce, ship and be assembled. At the same time, the assembled chairs also have to be have an aesthetically pleasing appearance, and should not be too high own weight.
Die bisher bekannten Stühle erfüllen diese anspruchsvollen Anforderungen nur unvollkommen, und es ist daher noch immer ein großes Problem, Stühle dahingehend zu verbessern, dass sie den Anforderungen möglichst weitgehend gerecht werden.The chairs known so far only meet these demanding requirements imperfect, and therefore it is still a big problem, chairs to improve in that they meet the requirements as much as possible satisfy.
Es ist daher die Aufgabe der Erfindung, einen Stuhl mit einer an einem Rohrgestell befestigten Sitzschale dahingehend zu verbessern, dass seine Einzelteile einerseits kostengünstig produzierbar, versendbar, lagerbar und montierbar sind, andererseits aber der montierte Stuhl auch ästhetisch ansprechend und stabil ist.It is therefore the object of the invention to provide a chair with one on one Tubular frame attached seat shell to improve its On the one hand, individual parts can be produced, shipped, stored and cost-effectively can be assembled, but on the other hand the assembled chair also aesthetically appealing and stable.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 und der
Unteransprüche gelöst.This object is achieved by the features of
Der Kern der Erfindung ist die Idee, zur Verbindung der Sitzschale mit dem Beingestell ein Bauteil vorzusehen, das aus einem elastischen Kunststoff hergestellt ist, der zwar elastisch genug ist, dass bei entsprechend kleiner Wandstärke die Aufnahme für die Beine sowie die Klinke für das Verkettungsglied geöffnet bzw. bewegt werden können, der aber auch eine ausreichend hohe Festigkeit aufweist, um bei geeigneter konstruktiver Ausgestaltung, insbesondere dem wellenförmigen Öffnungsschlitz der Beinaufnahme, eine stabile Verbindung des Gestells mit der Sitzschale zu gewährleisten. The essence of the invention is the idea of connecting the seat shell with the Leg frame to provide a component made of an elastic plastic is made, which is elastic enough that is correspondingly smaller Wall thickness for the legs and the handle for the Linking link can be opened or moved, but also one has sufficient strength to be suitable for a more constructive Design, in particular the wavy opening slot of the Leg attachment, a stable connection of the frame to the seat shell guarantee.
Mit diesem Konzept wird erreicht, dass der Stuhl im wesentlichen nur die Einzelteile Sitzschale, Bauteil und Rohrgestell umfasst, die kostengünstig hergestellt, versandt, gelagert und montiert werden können. Dennoch ist der Stuhl im montierten Zustand ästhetisch annsprechend - das erfindungsgemäße Bauteil ist praktisch unsichtbar - und von höchster Stabilität, auch beim Stapeln.With this concept it is achieved that the chair essentially only the Individual parts seat shell, component and tubular frame, which is inexpensive manufactured, shipped, stored and assembled. Nevertheless, that is Chair in the assembled state aesthetically pleasing - the invention Component is practically invisible - and extremely stable, even when stacked.
Nachstehend wird die Erfindung anhand eines in Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Dabei zeigt:
- Fig. 1
- perspektivisch das Gestell eines Stuhls mit zwei aufgesetzten erfindungsgemäßen Bauteilen,
- Fig.2
- oben bei a) ein erfindungsgemäßes Bauteil mit geöffneter Aufnahme für das rohrförmige Bein, und unten bei b) dasselbe, jedoch mit geschlossener Bein-Aufnahme,
- Fig.3
- ein erfindungsgemäßes Bauteil in vergrößerter Darstellung, und
- Fig.4
- eine Schnitt durch ein erfindungsgemäßes Bauteil mit eingeschobenem Verkettungsglied.
- Fig. 1
- in perspective the frame of a chair with two attached components according to the invention,
- Fig.2
- at a) above, a component according to the invention with an open receptacle for the tubular leg, and below at b) the same, but with a closed leg receptacle,
- Figure 3
- an inventive component in an enlarged view, and
- Figure 4
- a section through an inventive component with inserted link.
In Fig.1 sind die vier rohrförmigen Beine 1 eines Stuhlgestells dargestellt. Zwei
Beine 1 bestehen jeweils aus einem gebogenen Rohr, und die beiden Rohre sind
in der Mitte miteinander verbunden, vorzugsweise verschweißt.In Fig.1, the four
Auf den vier Beinen 1 sind mittels der vier Aufnahmen 4 zwei erfindungsgemäße
Bauteile befestigt. Die Bauteile weisen Durchgänge 2 auf, durch welche bei der
Montage der Sitzschale Schrauben 3 geführt werden. Die Sitzschale besteht
beispielsweise aus Holz, und weist an ihrer Unterseite eingelassene Muttern auf,
in die die Schrauben 3 eingeschraubt werden. On the four
Die Aufnahmen 4 weisen oben einen nicht-geraden, wellenförmigen Schlitz 5 auf,
der die obere Mittelgerade des Bein-Rohres 1 auf beiden Seiten übergreift.
Dadurch presst die montierte Sitzschale das Material des Bauteils auf beiden
Seiten der Mittelgeraden auf das Bein-Rohr.The receptacles 4 have a non-straight,
Der Stapelschutz 6 wird an der Unterseite der Aufnahme 4 befestigt. Er weist Nuten mit Hinterschnitt auf, in welche die Rippen 7 an der Aufnahme 4 eingreifen.The stack guard 6 is attached to the underside of the receptacle 4. He points Grooves with an undercut in which the ribs 7 on the receptacle 4 engage.
Auf den beiden Außenseiten des Stuhl-Gestells sind die stabförmigen
Verkettungsglieder 8 dargestellt. Die beiden Verkettungsglieder 8 werden in die
Ausnehmungen 9 eingeschoben. Das in der Figur linke Glied 8 hat vorn einen
Haken 13, das rechte hat eine Aussparung 14. Bei Verkettung mit einem
Nachbar-Stuhl greift dann der Haken 13 in die Aussparung des
Verkettungsgliedes des Nachbar-Stuhles ein, bzw. der Haken des
Verkettungsgliedes des Nachbar-Stuhles in die Aussparung 14.The rod-shaped are on the two outer sides of the chair
In Fig.2 oben bei a) ist der wellenförmige Schlitz 5 der linken Aufnahme 4 durch
Herabbiegen des linken Endes des erfindungsgemäßen Bauteils geöffnet. Das ist
möglich, weil das Material des Bauteils ein elastischer Thermoplast mit einem
Elastizitäts-Modul (E-Modul) von maximal 3500 N/mm2 ist. Die untere Grenze für
den E-Modul ist zweckmäßigerweise 2000 N/mm2 , die Streckspannung
(Zugfestigkeit) sollte größer als 50 N/mm2 sein. (Zur Definition des E-Modul siehe
DIN 53 457, der Streckspannung DIN 53 455). Dadurch kann die Aufnahme 4
wegen der geeignet dünn dimensionierten Wandstärke verbogen werden, obwohl
der restliche Teil des Bauteils, insbesondere auch durch die Verrippung,
hochstabil ist. In die geöffnete Aufnahme 4 kann das rohrförmige Bein 1 eingelegt
werden.In FIG. 2 at a), the
In Fig.2 unten bei b) ist der wellenförmige Schlitz 5 geschlossen. In diesem
Zustand wird die Sitzschale mittels in die Durchgänge 2 eingeführter Schrauben 3
festgeschraubt. In Fig.2 below at b) the
In Fig.3 sind die zu den Figuren 1 und 2 beschriebenen Elemente nochmals größer und besser im Detail sichtbar dargestellt.In Figure 3, the elements described for Figures 1 and 2 are again shown larger and better in detail.
In Fig.4 ist das Zusammenspiel des Verkettungsgliedes 8 mit dem
erfindunsgemäßen Bauteil dargestellt. Wie ersichtlich ist an der Ausnehmung 9
unten eine Klinke 10 vorgesehen. Deren Anbindung an das Bauteil ist wieder mit
so geringer Wandstärke dimensioniert, dass sie beweglich ist.In Figure 4 is the interaction of the
Das Verkettungsglied 8 kann in der Ausnehmung 9 verschoben und in zwei
Positionen fest eingestellt werden.The
In der einen Position ist das Glied 8 ganz eingeschoben. Es liegt dann unsichtbar
ganz unter der Sitzzschale und ist dadurch fixiert, dass die Klinke 10 in die
Rastöffnung 12 einrastet.In one position,
Im ausgezogenen Zustand kan die Verkettung mit einem Nachbar-Stuhl erfolgen.
In dieser Position liegt die Fläche der Rastnase 11 an der Fläche 10 an. Dabei ist
die Dimensionierung der Klinke 10 und der Rastnase 11 derart, dass die
Elemente der durch die Stuhl-Verkettung erzeugten Zugkraft standhalten.When extended, the chaining can be done with a neighboring chair.
In this position, the surface of the locking
Vorteilhafterweise bestehen Bauteil und Verkettungsglied aus POM-(Polyoxymethylen-) Kunststoff mit den oben angegebenen Werten für E-Modul und Streckspannung, also E-Modul ≤ 3500 N/mm2 und ≥ 2000 N/mm2, und Streckspannung ≥ 50 N/mm2. Damit werden einerseits die erfindungsgemäßen Elastizitäts- und Festigkeits-Eigenschaften erzielt, andererseits können Bauteil und Verkettungsglied einfach im Spritzguss-Verfahren hergestellt werden.Advantageously, the component and interlinking link are made of POM (polyoxymethylene) plastic with the above-mentioned values for modulus of elasticity and yield stress, i.e. modulus of elasticity ≤ 3500 N / mm 2 and ≥ 2000 N / mm 2 , and yield stress ≥ 50 N / mm 2nd On the one hand, the elasticity and strength properties according to the invention are achieved, on the other hand, the component and interlinking element can simply be produced by the injection molding process.
Statt POM-Kunststoff könnte auch PP (Polypropylen) mit gleichem Bereich des E-Modul, aber einer Streckspannung von größer / gleich 30 N/mm2 verwendet werden. Instead of POM plastic, PP (polypropylene) with the same area of the modulus of elasticity but a yield stress of greater than or equal to 30 N / mm 2 could also be used.
- 11
- Beinelegs
- 22
- Durchgänge für SchraubenPassages for screws
- 33
- Schraubenscrew
- 44
- Aufnahme für BeineRecording for legs
- 55
- SchlizSchliz
- 66
- Stapelschutzstack protection
- 77
- Ripperib
- 88th
- Verkettungsgliedconcatenating part
- 99
- Ausnehmungrecess
- 1010
- Klinkepawl
- 1111
- Rastnaselocking lug
- 1212
- Rastöffnunglatching opening
- 1313
- Hakenhook
- 1414
- Aussparungrecess
Claims (8)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE50202063T DE50202063D1 (en) | 2002-10-15 | 2002-10-15 | Component for a chair |
| EP02023145A EP1410740B1 (en) | 2002-10-15 | 2002-10-15 | Component for a chair |
| AT02023145T ATE287230T1 (en) | 2002-10-15 | 2002-10-15 | COMPONENT FOR A CHAIR |
| ES02023145T ES2231632T3 (en) | 2002-10-15 | 2002-10-15 | COMPONENT FOR A CHAIR. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02023145A EP1410740B1 (en) | 2002-10-15 | 2002-10-15 | Component for a chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1410740A1 true EP1410740A1 (en) | 2004-04-21 |
| EP1410740B1 EP1410740B1 (en) | 2005-01-19 |
Family
ID=32039135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02023145A Expired - Lifetime EP1410740B1 (en) | 2002-10-15 | 2002-10-15 | Component for a chair |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1410740B1 (en) |
| AT (1) | ATE287230T1 (en) |
| DE (1) | DE50202063D1 (en) |
| ES (1) | ES2231632T3 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29510067U1 (en) * | 1995-06-27 | 1995-08-17 | Kusch & Co Sitzmöbelwerke KG, 59969 Hallenberg | Attachment for a seat plate on the frame of a stacking chair |
| US6116692A (en) * | 1998-05-15 | 2000-09-12 | Virco Mfg. Corporation | Chair construction |
-
2002
- 2002-10-15 DE DE50202063T patent/DE50202063D1/en not_active Expired - Lifetime
- 2002-10-15 EP EP02023145A patent/EP1410740B1/en not_active Expired - Lifetime
- 2002-10-15 ES ES02023145T patent/ES2231632T3/en not_active Expired - Lifetime
- 2002-10-15 AT AT02023145T patent/ATE287230T1/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29510067U1 (en) * | 1995-06-27 | 1995-08-17 | Kusch & Co Sitzmöbelwerke KG, 59969 Hallenberg | Attachment for a seat plate on the frame of a stacking chair |
| US6116692A (en) * | 1998-05-15 | 2000-09-12 | Virco Mfg. Corporation | Chair construction |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE287230T1 (en) | 2005-02-15 |
| DE50202063D1 (en) | 2005-02-24 |
| ES2231632T3 (en) | 2005-05-16 |
| EP1410740B1 (en) | 2005-01-19 |
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