EP1680981B1 - Chair, one-piece seat with backrest for such, and method for its manufacture - Google Patents
Chair, one-piece seat with backrest for such, and method for its manufacture Download PDFInfo
- Publication number
- EP1680981B1 EP1680981B1 EP05028594A EP05028594A EP1680981B1 EP 1680981 B1 EP1680981 B1 EP 1680981B1 EP 05028594 A EP05028594 A EP 05028594A EP 05028594 A EP05028594 A EP 05028594A EP 1680981 B1 EP1680981 B1 EP 1680981B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piece
- backrest
- chair
- support frame
- frame tube
- 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.)
- Not-in-force
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000004744 fabric Substances 0.000 claims description 45
- 239000002356 single layer Substances 0.000 claims description 2
- ZCFFYALKHPIRKJ-UHFFFAOYSA-N 3-[18-(2-carboxylatoethyl)-8,13-bis(ethenyl)-3,7,12,17-tetramethyl-22,23-dihydroporphyrin-21,24-diium-2-yl]propanoate Chemical compound N1C(C=C2C(=C(C)C(=CC=3C(C)=C(CCC(O)=O)C(N=3)=C3)N2)C=C)=C(C)C(C=C)=C1C=C1C(C)=C(CCC(O)=O)C3=N1 ZCFFYALKHPIRKJ-UHFFFAOYSA-N 0.000 claims 7
- 210000002414 leg Anatomy 0.000 description 21
- 230000000284 resting effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Images
Classifications
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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
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/02—Rocking chairs
- A47C3/021—Rocking chairs having elastic frames
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
- A47C31/02—Upholstery attaching means
-
- 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
-
- 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
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
Definitions
- the invention relates to a one-piece seat with backrest for a chair, a chair with such a one-piece seat with backrest and method for producing a one-piece seat with backrest for a chair and for producing a chair with such a one-piece seat with backrest.
- the seat and the backrest surface are each formed by a knit fabric.
- the knitted fabrics are stretched between separate tubular frames.
- the covered tubular frame for the backrest is connected in a suitable manner with the covered tubular frame for the seat. The production and covering of the seat and the backrest takes place separately, the seat and the backrest are then rigidly connected.
- the US 200310062756 A1 shows a backrest which consists of a frame which is formed of two C-shaped frame parts. These are inserted into a rim, which extends around the circumference of a cover.
- the edge seam has at least one opening.
- the connection between the two frame parts is achieved by connecting parts which additionally cover the at least one opening.
- the DE 1 729 980 shows a padded seat with seat and backrest, wherein the seat part consists of a self-contained and curved according to the desired outline shape frame consists of a profile bar made of resilient material. The area enclosed by the frame surface is covered with elastic padding material.
- the seat and backrest have a knit fabric and in which the number of required components and the manufacturing steps to be performed is reduced, and therefore can be made easier and cheaper. Furthermore, a method for simple and inexpensive production of such a chair is to be specified.
- a one-piece seat with backrest for a chair which has a bent shell frame tube, a tie rod and a one-piece knitted fabric.
- the bent shell frame tube defines the left and right sides of the seat and the backrest and the upper end of the backrest and has two ends, between which the tie rod is inserted.
- the left and right side of the seat and the backrest forming portions of the curved shell frame tube may also be referred to as side spars
- the upper end of the backrest defining portion of the curved shell frame tube may also be referred to as a transverse spar.
- the one-piece knitted fabric has an integrated circumferential welt hem in which the shell frame tube and the tension rod are threaded and run there. So that the shell frame tube and the tie rod can be threaded into the circumferential Kedersaum, at least one opening is provided on the underside of the one-piece knitted fabric at one edge.
- such a construction provides a one-piece seat with a seat surface and with a backrest, in which a single knit extends continuously over the seat surface and over the backrest, in the form that the circumferential welt seams in one front, later concealed bottom portion has at least one opening through which the entire shell frame tube and the tension rod are threaded. There is no need to provide separate knits for the seat and backrest.
- the circumferential Kedersaum on its underside on two openings in order to thread the shell frame tube and the tie rod advantageous.
- These two openings can be provided left and right in a front edge region of the underside of the one-piece knitted fabric. These are completely invisible when the one-piece seat with backrest is mounted on a chair frame.
- the one-piece knitted fabric can be formed in one layer. Its shape and dimensions are determined by the contour of the curved shell frame tube and the tie rod set. In general, the one-piece knit has a substantially rectangular shape.
- the invention also relates to a chair in which the above-described one-piece seat with backrest, in particular the side rails of the shell frame tube is attached to two frame legs of a chair frame arranged underneath.
- a support member is further arranged in a front region of the chair frame below the one-piece knitted fabric to prevent collapse of the knitted fabric and to increase the supporting force for resting in a front region of the seat thigh.
- This support member can in principle be made of any material.
- the seating comfort can be improved when the support member is made of a flexible material.
- a particularly stable and easy to manufacture construction of the chair is given when the support member between the frame legs attached, in particular screwed. Then even can be dispensed with a cross strut between the frame legs of the chair frame at this point.
- the invention also relates to a method for producing a one-piece seat with backrest for a chair. Initially, a bent shell frame tube already described above and a one-piece knit fabric already described above are provided. The bent shell frame tube is then fully threaded through at least one of the openings of the circumferential welt space in the welt space. Thereafter or at the same time, the bent shell frame tube is covered with the one-piece knit so that both the backrest and the seat surface are continuously stretched by the one-piece knitted fabric. Now, an already mentioned above tension rod is provided and also threaded through at least one of the openings of the circumferential Kedersaums in this. Finally, the tie rod is inserted between the two ends of the shell frame tube.
- the curved shell frame tube is fixed and fixed the entire shape of the one-piece seat with backrest.
- the step of covering the shell frame tube with the one-piece fabric can be performed by first the one-piece knitted fabric as a whole over which the upper end of the backrest defining cross member of the shell frame tube is shirred and then the one-piece knit fabric is stripped down parallel right and left on the side rails of the shell frame tube. This stripping continues to the front. As a result, the one-piece fabric is stretched particularly evenly taut. It is necessary that the one-piece knitted fabric is made of flexible material.
- the invention relates to a method for manufacturing a chair, in which first the method described above for producing a one-piece seat with backrest is carried out. Then a chair frame with two frame legs are provided and a particular flexible support member mounted on top of the chair frame between the two frame legs. Alternatively, the chair frame can already be made available with such a support member. Finally, the one-piece seat is fixed with backrest on the chair frame.
- the side uprights of the shell frame tube can be stretched apart, in particular with the aid of a corresponding device when fastening the one-piece seat with backrest on the chair frame.
- a particularly stable and inexpensive realizable attachment of the one-piece seat with backrest on the chair frame is given when the side rails of the shell frame tube are bolted to the frame legs.
- the invention is based on an embodiment with reference to the FIGS. 1 and 2 illustrated in more detail.
- FIG. 1 shows a perspective view of a shell frame chair from a side, slightly downwardly offset position according to an embodiment of the invention
- the in FIG. 1 shown cup frame chair has a chair frame 3, a support member 5 and a curved shell frame tube 1, which defines with its side rails the left and right side of the seat and the backrest and with its transverse spar the upper end of the backrest.
- the chair frame 3 comprises two mutually parallel frame legs 3a and 3b, each having a resting on the floor portion, a vertically upwardly extending portion and a bent shell frame tube 1 bearing portion.
- the bent shell frame tube 1 supporting portions of the frame legs 3a and 3b are connected at its end with a downwardly bent cross-brace.
- the resting on the floor portions of the frame legs 3a and 3b are connected at its end with a resting on the floor cross brace.
- the transitions between the resting on the floor sections, the vertically upwardly extending portions and the bent shell frame tube 1 bearing portions of the frame legs 3a and 3b are each rounded.
- a plate-shaped support member 5 slightly bent in the front direction, which follows the curvature of the frame legs 3a and 3b and which extends between the side rails 1b and 1c.
- the side rails 1b and 1c are bent upwards at the rear end of the seat surface and extend upwards in an S-shape as far as the cross member 1a connecting them.
- the shell frame chair is provided with a one-piece knitted fabric 4, which for purposes of illustration in FIG. 1 is shown only in an upper region of the backrest.
- the one-piece knitted fabric 4 extends between the side rails 1b and 1c and the upper cross member 1a of the bent shell frame pipe 1.
- FIG. 2 shows an exploded view of the shell frame chair.
- the components according to the invention of the shell frame chair namely the chair frame 3, the support member 5, the bent shell frame tube 1, the one-piece knitted fabric 4 and a tension rod 2 are in FIG. 2 shown separately from each other before their assembly to the shell frame chair.
- a further cross-brace In the chair frame 3 is between the frame legs 3a and 3b, a further cross-brace can be seen, which is located directly below the curved transition between the vertically upwardly extending portions and the bent shell frame tube 1 supporting portions of the frame legs 3a and 3b.
- This further cross-brace is positioned so that the support member 5 rests with its slightly downwardly facing front surface on her when the support member 5 is connected to be introduced laterally by the frame legs 3a and 3b screws with the chair frame 3.
- the tension rod 2 has at its ends smaller stepped sockets, which are inserted into the ends of the shell frame tube 1 and the curved shell frame tube 1 can fix so.
- the one-piece knitted fabric 4 has a circumferential Kedersaum 4a, which in FIG. 2 is shown by a dashed line and has on the underside of the one-piece knitted fabric 4 front left and right two openings 4b and 4c, through which the curved shell frame tube 1 and the tension rod 2 can be threaded into the welt space 4a.
- FIGS. 1 and 2 illustrated tray frame chair according to the invention is as follows from in FIG. 2 Assembled components are assembled:
- the bent shell frame tube 1 is threaded through one of the two openings 4b or 4c in the circumferential welt space 4a. Then, the entire one-piece knitted fabric 4 is gathered first as a whole pulled together over the cross member 1a of the shell frame tube 1. Subsequently, the one-piece knitted fabric 4 is pulled down in parallel right and left on the side rails 1b and 1c, with the one-piece fabric 4 taut on the curved shell frame tube 1. The stripping continues until the front. Then you introduce the tension rod 2 front through one of the openings 4b or 4c in the welt space 4a and spans the one-piece fabric 4 also forward taut. Due to the tension, the tension rod 2 pulls with their smaller set neck in the curved shell frame tube 1 and thus fixes the seat and the backrest.
- the support member 5 is placed on the top of the chair frame 3 between the two frame legs 3a and 3b on the further cross bracing and screwed laterally.
- the covered with the one-piece fabric 4 and fixed by the tie rod 2 shell frame tube 1 is now placed on the frame legs 3a and 3b and bolted to them from below.
- the tray frame chair according to the invention thus produced has an exceptionally delicate shape, because it is continuously covered with a single one-piece knitted fabric 4 and the support member 5 is hidden between the frame legs 3a and 3b.
- the openings 4b and 4c of the single layer knitted fabric 4 are not visible. Accordingly, it remains hidden to the user, in which way the curved shell frame tube 1 has entered the one-piece knit 4, which further improves the design of the shell frame chair.
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
- Chairs Characterized By Structure (AREA)
- Finger-Pressure Massage (AREA)
- Knitting Of Fabric (AREA)
Abstract
Description
Die Erfindung betrifft einen einteiligen Sitz mit Rückenlehne für einen Stuhl, einen Stuhl mit einem solchen einteiligen Sitz mit Rückenlehne sowie Verfahren zum Herstellen eines einteiligen Sitzes mit Rückenlehne für einen Stuhl und zum Herstellen eines Stuhls mit einem solchen einteiligen Sitz mit Rückenlehne.The invention relates to a one-piece seat with backrest for a chair, a chair with such a one-piece seat with backrest and method for producing a one-piece seat with backrest for a chair and for producing a chair with such a one-piece seat with backrest.
Im Stand der Technik sind Stühle bekannt, bei denen die Sitzfläche sowie die Rückenlehnenfläche jeweils von einem Gestrick gebildet sind. Dabei sind die Gestricke jeweils zwischen separaten Rohrrahmen gespannt. Der bespannte Rohrrahmen für die Rückenlehne wird dabei auf geeignete Weise mit dem bespannten Rohrrahmen für die Sitzfläche verbunden. Die Herstellung und Bespannung der Sitzfläche und der Rückenlehne erfolgt jeweils separat, die Sitzfläche und die Rückenlehne werden anschließend starr miteinander verbunden.In the prior art chairs are known in which the seat and the backrest surface are each formed by a knit fabric. The knitted fabrics are stretched between separate tubular frames. The covered tubular frame for the backrest is connected in a suitable manner with the covered tubular frame for the seat. The production and covering of the seat and the backrest takes place separately, the seat and the backrest are then rigidly connected.
Die
Die
Hierbei ist von Nachteil, dass die Anzahl der vorzusehenden Bauteile sowie die Anzahl der durchzuführenden Fertigungsschritte für einen derartigen Stuhl hoch sind, was die Herstellung eines solchen Stuhles aufwendig und teuer macht.It is disadvantageous that the number of components to be provided and the number of manufacturing steps to be performed for such a chair are high, which makes the manufacture of such a chair expensive and expensive.
Es ist daher die Aufgabe der vorliegenden Erfindung, einen Stuhl anzugeben, dessen Sitzfläche und Rückenlehne ein Gestrick aufweisen und bei dem die Anzahl der benötigten Bauteile und der durchzuführenden Fertigungsschritte verringert ist, und der daher einfacher und kostengünstiger hergestellt werden kann. Des Weiteren soll ein Verfahren zur einfachen und kostengünstigen Herstellung eines solchen Stuhls angegeben werden.It is therefore an object of the present invention to provide a chair, the seat and backrest have a knit fabric and in which the number of required components and the manufacturing steps to be performed is reduced, and therefore can be made easier and cheaper. Furthermore, a method for simple and inexpensive production of such a chair is to be specified.
Diese Aufgaben werden durch den Gegenstand der unabhängigen Patentansprüche gelöst. Vorteilhafte Weiterbildungen ergeben sich jeweils aus den abhängigen Ansprüchen.These objects are achieved by the subject matter of the independent claims. Advantageous developments emerge in each case from the dependent claims.
Gemäß der Erfindung ist ein einteiliger Sitz mit Rückenlehne für einen Stuhl vorgesehen, der ein gebogenes Schalenrahmen-Rohr, eine Spannstange sowie ein einteiliges Gestrick aufweist. Das gebogene Schalenrahmen-Rohr legt dabei die linke und die rechte Seite der Sitzfläche und der Rückenlehne sowie das obere Ende der Rückenlehne fest und weist zwei Enden auf, zwischen denen die Spannstange eingesetzt ist. Die die linke und die rechte Seite der Sitzfläche und der Rückenlehne bildenden Abschnitte des gebogenen Schalenrahmen-Rohrs können auch als Seiten holme, der das obere Ende der Rückenlehne festlegende Abschnitt des gebogenen Schalenrahmen-Rohrs kann auch als Querholm bezeichnet werden. Das einteilige Gestrick verfügt über einen integrierten umlaufenden Kedersaum, in dem das Schalenrahmen-Rohr und die Spannstange eingefädelt sind und dort verlaufen. Damit das Schalenrahmen-Rohr und die Spannstange in den umlaufenden Kedersaum eingefädelt werden können, ist an der Unterseite des einteiligen Gestricks an einem Rand wenigstens eine Öffnung vorgesehen.According to the invention, a one-piece seat with backrest for a chair is provided, which has a bent shell frame tube, a tie rod and a one-piece knitted fabric. The bent shell frame tube defines the left and right sides of the seat and the backrest and the upper end of the backrest and has two ends, between which the tie rod is inserted. The left and right side of the seat and the backrest forming portions of the curved shell frame tube may also be referred to as side spars, the upper end of the backrest defining portion of the curved shell frame tube may also be referred to as a transverse spar. The one-piece knitted fabric has an integrated circumferential welt hem in which the shell frame tube and the tension rod are threaded and run there. So that the shell frame tube and the tie rod can be threaded into the circumferential Kedersaum, at least one opening is provided on the underside of the one-piece knitted fabric at one edge.
Gemäß einem Grundgedanken der Erfindung wird durch eine derartige Konstruktion ein einteiliger Sitz mit einer Sitzfläche und mit einer Rückenlehne bereitgestellt, bei dem sich ein einziges Gestrick durchgängig über die Sitzfläche und über die Rückenlehne erstreckt, und zwar in der Form, dass der umlaufende Kedersaum in einem vorderen, später verdeckten Unterseiten-Bereich wenigstens eine Öffnung aufweist, durch welche das gesamte Schalenrahmen-Rohr und die Spannstange eingefädelt werden. Es brauchen keine separaten Gestricke mehr für Sitzfläche und Rückenlehne vorgesehen zu werden.According to a basic idea of the invention, such a construction provides a one-piece seat with a seat surface and with a backrest, in which a single knit extends continuously over the seat surface and over the backrest, in the form that the circumferential welt seams in one front, later concealed bottom portion has at least one opening through which the entire shell frame tube and the tension rod are threaded. There is no need to provide separate knits for the seat and backrest.
Des Weiteren weist ein derartiger einteiliger Sitz mit Rückenlehne eine außergewöhnlich zarte Gestalt und besondere Formschönheit auf. Dadurch, dass sowohl das gebogene Schalenrahmen-Rohr als auch die Spannstange in den umlaufenden Kedersaum durch dessen wenigstens eine Öffnung eingefädelt werden können, ergibt sich eine besonders einfache Herstellung des einteiligen Sitzes mit Rückenlehne, wobei ein zusätzliches Vernähen des einteiligen Gestrickes kostensparenderweise vermieden werden kann. Dadurch, dass die wenigstens eine Öffnung des Kedersaums an der Unterseite des einteiligen Gestricks angeordnet ist, bleibt diese für einen Benutzer unsichtbar. Dementsprechend bleibt dem Nutzer verborgen, auf welche Weise der Schalenrahmen in das einteilige Gestrick gelangt ist.Furthermore, such a one-piece seat with backrest on an exceptionally delicate shape and special beauty of form. The fact that both the curved shell frame tube and the tie rod can be threaded through the at least one opening in the circumferential Kedersaum, results in a particularly simple production of the one-piece seat with backrest, with additional sewing of the one-piece knitted fabric can be avoided cost-effectively. Characterized in that the at least one opening of the Kedersaums is arranged on the underside of the one-piece knitted fabric, this remains invisible to a user. Accordingly, it remains hidden to the user, in which way the shell frame has entered the one-piece knitted fabric.
Gemäß einer ersten Ausführungsform der Erfindung weist der umlaufende Kedersaum an seiner Unterseite zwei Öffnungen auf, um das Schalenrahmen-Rohr und die Spannstange vorteilhaft einfädeln zu können. Diese zwei Öffnungen können links und rechts in einem vorderen Randbereich der Unterseite des einteiligen Gestricks vorgesehen sein. Diese sind dann vollkommen unsichtbar, wenn der einteilige Sitz mit Rückenlehne auf ein Stuhlgestell montiert wird.According to a first embodiment of the invention, the circumferential Kedersaum on its underside on two openings in order to thread the shell frame tube and the tie rod advantageous. These two openings can be provided left and right in a front edge region of the underside of the one-piece knitted fabric. These are completely invisible when the one-piece seat with backrest is mounted on a chair frame.
Durch die erfindungsgemäße Konstruktion des einteiligen Sitzes mit Rückenlehne kann das einteilige Gestrick einlagig ausgebildet sein. Seine Form und seine Abmessungen werden durch die Kontur des gebogenen Schalenrahmen-Rohrs und der Spannstange festgelegt. In der Regel weist das einteilige Gestrick eine im Wesentlichen rechteckige Form auf.Due to the construction according to the invention of the one-piece seat with backrest, the one-piece knitted fabric can be formed in one layer. Its shape and dimensions are determined by the contour of the curved shell frame tube and the tie rod set. In general, the one-piece knit has a substantially rectangular shape.
Die Erfindung betrifft auch einen Stuhl, bei dem der vorstehend beschriebene einteilige Sitz mit Rückenlehne, insbesondere die Seitenholme dessen Schalenrahmen-Rohrs an zwei Gestellschenkeln eines darunter angeordneten Stuhlgestells befestigt ist. Dabei ist weiterhin ein Stützteil in einem vorderen Bereich des Stuhlgestells unterhalb des einteiligen Gestricks angeordnet, um ein Einfallen des Gestricks zu vermeiden und um die Stützkraft für die in einem vorderen Bereich der Sitzfläche aufliegenden Oberschenkel zu erhöhen. Dieses Stützteil kann grundsätzlich aus einem beliebigen Material hergestellt sein. Der Sitzkomfort kann verbessert werden, wenn das Stützteil aus einem flexiblen Material ist.The invention also relates to a chair in which the above-described one-piece seat with backrest, in particular the side rails of the shell frame tube is attached to two frame legs of a chair frame arranged underneath. In this case, a support member is further arranged in a front region of the chair frame below the one-piece knitted fabric to prevent collapse of the knitted fabric and to increase the supporting force for resting in a front region of the seat thigh. This support member can in principle be made of any material. The seating comfort can be improved when the support member is made of a flexible material.
Eine besonders stabile und einfach herzustellende Konstruktion des Stuhles ist dann gegeben, wenn das Stützteil zwischen den Gestellschenkeln befestigt, insbesondere verschraubt ist. Dann kann sogar auf eine Querstrebe zwischen den Gestellschenkeln des Stuhlgestells an dieser Stelle verzichtet werden.A particularly stable and easy to manufacture construction of the chair is given when the support member between the frame legs attached, in particular screwed. Then even can be dispensed with a cross strut between the frame legs of the chair frame at this point.
Die Erfindung betrifft auch ein Verfahren zum Herstellen eines einteiligen Sitzes mit Rückenlehne für einen Stuhl. Dabei werden zunächst ein bereits oben beschriebenes gebogenes Schalenrahmen-Rohr sowie ein bereits oben beschriebenes einteiliges Gestrick bereitgestellt. Das gebogene Schalenrahmen-Rohr wird dann durch wenigstens eine der Öffnungen des umlaufenden Kedersaums in den Kedersaum vollständig eingefädelt. Danach oder gleichzeitig wird das gebogene Schalenrahmen-Rohr mit dem einteiligen Gestrick bespannt, sodass sowohl die Rückenlehne als auch die Sitzfläche durchgängig von dem einteiligen Gestrick aufgespannt sind. Nun wird eine bereits oben erwähnte Spannstange bereitgestellt und ebenfalls durch wenigstens eine der Öffnungen des umlaufenden Kedersaums in diesen eingefädelt. Schließlich wird die Spannstange zwischen die zwei Enden des Schalenrahmen-Rohrs eingesetzt. Dafür kann es erforderlich sein, die Seitenholme des gebogenen Schalenrahmen-Rohrs auseinander zu spannen, weil sich das gebogene Schalenrahmen-Rohr durch die von dem einteiligen Gestrick ausgeübte Spannung rechts- und linksseitig nachgebend zusammenzieht. Durch die Spannstange wird das gebogene Schalenrahmen-Rohr fixiert und die gesamte Form des einteiligen Sitzes mit Rückenlehne festgelegt. Durch dieses Herstellungsverfahren kann ein einteiliger Sitz mit Rückenlehne schnell, einfach und auf kostengünstige Weise hergestellt werden.The invention also relates to a method for producing a one-piece seat with backrest for a chair. Initially, a bent shell frame tube already described above and a one-piece knit fabric already described above are provided. The bent shell frame tube is then fully threaded through at least one of the openings of the circumferential welt space in the welt space. Thereafter or at the same time, the bent shell frame tube is covered with the one-piece knit so that both the backrest and the seat surface are continuously stretched by the one-piece knitted fabric. Now, an already mentioned above tension rod is provided and also threaded through at least one of the openings of the circumferential Kedersaums in this. Finally, the tie rod is inserted between the two ends of the shell frame tube. For this it may be necessary to spread apart the side rails of the curved shell frame tube, because the bent shell frame tube contractively contracts due to the tension exerted by the one-piece fabric on the right and left side. By the tie rod, the curved shell frame tube is fixed and fixed the entire shape of the one-piece seat with backrest. By this manufacturing method, a one-piece seat with backrest can be made quickly, easily and inexpensively.
Um eine gleichmäßige Kräfteverteilung beim Herstellen des einteiligen Sitzes mit Rückenlehne zu gewährleisten, und um gleichzeitig ein Verbiegen des gebogenen Schalenrahmen-Rohrs zu verhindern, kann der Schritt des Bespannens des Schalenrahmen-Rohrs mit dem einteiligen Gestrick durchgeführt werden, indem zunächst das einteilige Gestrick als Ganzes über den das obere Ende der Rückenlehne festlegenden Querholm des Schalenrahmen-Rohrs gerafft wird und anschließend das einteilige Gestrick parallel rechts und links über die Seitenholme des Schalenrahmen-Rohrs heruntergestreift wird. Dieses Herunterstreifen wird bis nach vorne fortgesetzt. Dadurch wird das einteilige Gestrick besonders gleichmäßig straff gespannt. Dabei ist es erforderlich, dass das einteilige Gestrick aus flexiblem Material ist.In order to ensure a uniform distribution of forces in the production of the one-piece seat with backrest, and at the same time to prevent bending of the bent shell frame tube, the step of covering the shell frame tube with the one-piece fabric can be performed by first the one-piece knitted fabric as a whole over which the upper end of the backrest defining cross member of the shell frame tube is shirred and then the one-piece knit fabric is stripped down parallel right and left on the side rails of the shell frame tube. This stripping continues to the front. As a result, the one-piece fabric is stretched particularly evenly taut. It is necessary that the one-piece knitted fabric is made of flexible material.
Die Erfindung betrifft schließlich ein Verfahren zum Herstellen eines Stuhls, bei dem zunächst das oben beschriebene Verfahren zum Herstellen eines einteiligen Sitzes mit Rückenlehne durchgeführt wird. Dann werden ein Stuhlgestell mit zwei Gestellschenkeln bereitgestellt und ein insbesondere flexibles Stützteil auf der Oberseite des Stuhlgestells zwischen den zwei Gestellschenkeln angebracht. Alternativ dazu kann das Stuhlgestell schon mit einem solchen Stützteil zur Verfügung gestellt werden. Schließlich wird der einteilige Sitz mit Rückenlehne auf dem Stuhlgestell befestigt.Finally, the invention relates to a method for manufacturing a chair, in which first the method described above for producing a one-piece seat with backrest is carried out. Then a chair frame with two frame legs are provided and a particular flexible support member mounted on top of the chair frame between the two frame legs. Alternatively, the chair frame can already be made available with such a support member. Finally, the one-piece seat is fixed with backrest on the chair frame.
Mit diesem Herstellungsverfahren kann ein besonders formschöner und komfortabler Schalenrahmen-Stuhl kostengünstig, schnell und auf einfache Weise hergestellt werden.With this manufacturing method, a particularly shapely and comfortable shell frame chair can be produced inexpensively, quickly and easily.
Um den Schalenrahmen optimal zu spannen, können beim Befestigen des einteiligen Sitzes mit Rückenlehne auf dem Stuhlgestell die seitlichen Holme des Schalenrahmen-Rohrs insbesondere mit Hilfe einer entsprechenden Vorrichtung auseinander gespannt werden.In order to optimally tension the shell frame, the side uprights of the shell frame tube can be stretched apart, in particular with the aid of a corresponding device when fastening the one-piece seat with backrest on the chair frame.
Eine besonders stabile und kostengünstig realisierbare Befestigung des einteiligen Sitzes mit Rückenlehne auf dem Stuhlgestell ist dann gegeben, wenn die seitlichen Holme des Schalenrahmen-Rohrs mit den Gestellschenkeln verschraubt werden.A particularly stable and inexpensive realizable attachment of the one-piece seat with backrest on the chair frame is given when the side rails of the shell frame tube are bolted to the frame legs.
Die Erfindung ist nachfolgend anhand eines Ausführungsbeispiels mit Bezug auf die
Es zeigen:
Figur 1- eine Perspektivansicht eines Schalenrahmen-Stuhls aus einer seitlichen, etwas nach unten versetzten Position gemäß einem Ausführungsbeispiel der Erfindung;
Figur 2- eine Explosionszeichnung des Schalenrahmen-Stuhls aus
.Figur 1
- FIG. 1
- a perspective view of a shell frame chair from a lateral, slightly downwardly offset position according to an embodiment of the invention;
- FIG. 2
- an exploded view of the shell frame chair
FIG. 1 ,
Der in
Auf den das gebogene Schalenrahmen-Rohr 1 tragenden Abschnitten der Gestellschenkel 3a und 3b liegen die Seitenholme 1b und 1c des gebogenen Schalenrahmen-Rohrs 1 auf. Diese Seitenholme 1b und 1c sind dabei von unten mit den das gebogene Schalenrahmen-Rohr 1 tragenden Abschnitten der Gestellschenkel 3a und 3b verschraubt. Die Schraubenköpfe dieser Schraubverbindungen sind in
In einem vorderen Bereich der Sitzfläche ist ein plattenförmiges, in vorderer Richtung leicht nach unten gebogenes Stützteil 5 vorgesehen, das der Krümmung der Gestellschenkel 3a und 3b folgt und das sich zwischen den Seitenholmen 1b und 1c erstreckt.In a front portion of the seat, there is provided a plate-shaped
Die Seitenholme 1b und 1c sind am rückwärtigen Ende der Sitzfläche nach oben gebogen und verlaufen S-förmig bis zu dem Querholm 1a, der sie verbindet, nach oben.The side rails 1b and 1c are bent upwards at the rear end of the seat surface and extend upwards in an S-shape as far as the
Der Schalenrahmen-Stuhl ist mit einem einteiligen Gestrick 4 versehen, das aus Darstellungsgründen in
Bei dem Stuhlgestell 3 ist zwischen den Gestellschenkeln 3a und 3b eine weitere Querverstrebung zu sehen, die direkt unterhalb des gebogenen Übergangs zwischen den senkrecht nach oben verlaufenden Abschnitten und den das gebogene Schalenrahmen-Rohr 1 tragenden Abschnitten der Gestellschenkel 3a und 3b angeordnet ist. Diese weitere Querverstrebung ist so positioniert, dass das Stützteil 5 mit seiner leicht nach unten gerichteten Frontfläche auf ihr aufliegt, wenn das Stützteil 5 mit seitlich durch die Gestellschenkel 3a und 3b einzubringenden Schrauben mit dem Stuhlgestell 3 verbunden wird.In the
Die Spannstange 2 weist an ihren Enden kleiner abgesetzte Stutzen auf, die in die Enden des Schalenrahmen-Rohrs 1 eingesetzt werden und das gebogene Schalenrahmen-Rohr 1 so fixieren können.The
Das einteilige Gestrick 4 weist einen umlaufenden Kedersaum 4a auf, der in
Der in den
Zunächst wird das gebogene Schalenrahmen-Rohr 1 durch eine der beiden Öffnungen 4b oder 4c in den umlaufenden Kedersaum 4a eingefädelt. Dann wird das komplette einteilige Gestrick 4 gerafft zunächst als Ganzes über den Querholm 1a des Schalenrahmen-Rohrs 1 zusammengezogen. Anschließend wird das einteilige Gestrick 4 parallel rechts und links über die Seitenholme 1b und 1c heruntergestreift, wobei sich das einteilige Gestrick 4 auf dem gebogenen Schalenrahmen-Rohr 1 straff spannt. Das Herunterstreifen wird bis nach vorne fortgesetzt. Danach führt man die Spannstange 2 vorne durch eine der Öffnungen 4b oder 4c in den Kedersaum 4a ein und spannt das einteilige Gestrick 4 auch nach vorne straff. Durch die Spannung zieht sich die Spannstange 2 mit ihren kleiner abgesetzten Stutzen in das gebogene Schalen rahmen-Rohr 1 und fixiert so die Sitzfläche und die Rückenlehne.First, the bent
Anschließend wird das Stützteil 5 auf der Oberseite des Stuhlgestells 3 zwischen den zwei Gestellschenkeln 3a und 3b auf die weitere Querverstrebung aufgesetzt und seitlich verschraubt. Das mit dem einteiligen Gestrick 4 bespannte und von der Spannstange 2 fixierte Schalenrahmen-Rohr 1 wird nun auf die Gestellschenkel 3a und 3b aufgesetzt und mit diesen von unten verschraubt.Subsequently, the
Der so hergestellte erfindungsgemäße Schalenrahmen-Stuhl weist eine außergewöhnlich zarte Gestalt auf, denn er ist durchgängig mit einem einzigen einteiligen Gestrick 4 bespannt und das Stützteil 5 verbirgt sich zwischen den Gestellschenkeln 3a und 3b. Die Öffnungen 4b und 4c des einlagigen Gestricks 4 sind nicht sichtbar. Dementsprechend bleibt es dem Benutzer verborgen, auf welche Weise das gebogene Schalenrahmen-Rohr 1 in das einteilige Gestrick 4 gelangt ist, was das Design des Schalenrahmen-Stuhls weiter verbessert.The tray frame chair according to the invention thus produced has an exceptionally delicate shape, because it is continuously covered with a single one-piece
- 11
- gebogenes Schalenrahmen-Rohrcurved cup frame tube
- 1 a1 a
- Querholmtransverse spar
- 1b, 1c1b, 1c
- Seitenholmeside rails
- 22
- Spannstangetension rod
- 33
- Stuhlgestellchair frame
- 3a, 3b3a, 3b
- Gestellschenkelframe legs
- 44
- einteiliges Gestrickone-piece knit
- 4a4a
- KedersaumKedersaum
- 4b,4c4b, 4c
- Öffnungenopenings
- 55
- Stützteilsupporting part
Claims (11)
- Chair comprising a chair support frame (3) having two support frame side pieces (3a, 3b);
characterized in that
a one-piece seat comprising a backrest is provided, said one-piece seat- comprising a bent frame tube (1) defining the left and right sides of the seating area and of the backrest as well as the upper end of the back rest, and comprising two ends;- a tension rod (2) inserted between the two ends of the frame tube (1); and- one-piece knitted fabrics (4) having a surrounding welt hem (4a) in which the frame tube (1) and the tension rod (2) run; wherein the surrounding welt hem (4a) comprises at least one opening (4b, 4c) at the underside of the one-piece knitted fabrics (4);that the frame tube (1) is fixed on the two support frame side pieces (3a, 3b); and
that a support member (5) is disposed in a front portion of the chair support frame (3) below the one-piece knitted fabrics (4). - Chair according to claim 1,
characterized in that
the surrounding welt hem (4a) comprises two openings (4b, 4c) at the underside of the one-piece knitted fabrics (4). - Chair according to claim 2,
characterized in that
the two openings (4b, 4c) are provided in the surrounding welt hem (4a) at the left and right sides in a front edge portion of the underside of the one-piece knitted fabrics (4). - Chair according to any of claims 1 to 3,
characterized in that
the one-piece knitted fabrics (4) is formed as a single layer. - Chair according to any of claims 1 to 4,
characterized in that
the support member (5) is fixed, especially screwed between the support frame side pieces (3a, 3b). - Method for manufacturing a chair, comprising a one-piece seat having a backrest, the method comprising the following steps:- providing a bent frame tube (1) defining the left and the right sides of the seating area and of the backrest as well as the upper end of the backrest, and comprising two ends;- providing a one-piece knitted fabrics (4) having a surrounding welt hem (4a) and at least one opening (4b, 4c) at its underside;- threading the bent frame tube (1) into the welt hem (4a) through at least one of the openings (4b, 4c) of the surrounding welt hem (4a);- covering the bent frame tube (1) with the one-piece knitted fabrics (4) such that both the backrest and the seating area are formed by the one-piece knitted fabrics (4);- providing a tension rod (2);- threading the tension rod (2) into the welt hem (4a) through at least one of the openings (4b, 4c) of the surrounding welt hem (4a);- inserting the tension rod (2) between the two ends of the frame tube (1);- providing a chair support frame (3) having two support frame side pieces (3a, 3b);- mounting a support member (5) on the upper side of the chair support frame (3) between the two support frame side pieces (3a, 3b); and- fixing the one-piece seat with the backrest onto the chair support frame (3).
- Method according to claim 6,
characterized in that
the step of covering the frame tube (1) with the one-piece knitted fabrics (4) is carried out as follows:- gathering the one-piece knitted fabrics (4) as a whole over a cross bar (1a) of the frame tube (1), said cross bar (1a) defining the upper end of the backrest;- pulling down the one-piece knitted fabrics (4) over the lateral bars (1b, 1c) of the frame tube (1) in a parallel manner. - Method according to claim 7,
characterized in that
the lateral bars (1b, 1c) of the frame tube (1) are stretched apart when mounting the one-piece seat with the backrest onto the chair support frame (3). - Method according to claim 7 or 8
characterized in that
the mounting of the one-piece seat with the backrest onto the chair support frame (3) is effected by screwing the lateral bars (1b, 1c) of the frame tube (1) to the support frame side pieces (3a, 3b). - Method according to claim 9
characterized in that
during mounting of the one-piece seat with the backrest onto the chair support frame (3) the lateral bars (1b, 1c) of the frame tube (1) are tensioned apart. - Method according to claim 9 or 10
characterized in that
the fixing of the one-piece seat with the backrest onto the chair support frame (3) is carried out by screwing the lateral bars (1b, 1c) of the frame tube (1) to the support frame side pieces (3a, 3b).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005001477A DE102005001477A1 (en) | 2005-01-12 | 2005-01-12 | Chair, one-piece seat with backrest therefor and method of making same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1680981A1 EP1680981A1 (en) | 2006-07-19 |
EP1680981B1 true EP1680981B1 (en) | 2008-03-19 |
Family
ID=36122059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05028594A Not-in-force EP1680981B1 (en) | 2005-01-12 | 2005-12-28 | Chair, one-piece seat with backrest for such, and method for its manufacture |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1680981B1 (en) |
AT (1) | ATE389340T1 (en) |
DE (2) | DE102005001477A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2165628A1 (en) | 2008-09-20 | 2010-03-24 | Alfons Venjakob Gmbh & Co. KG | Chair with back rest and method for its manufacture |
DE202011001387U1 (en) | 2011-01-12 | 2011-03-17 | Design Ballendat Gmbh | Chair with knitted seat element |
CN107594884A (en) * | 2017-10-19 | 2018-01-19 | 惠阳维信纺织工业有限公司 | The weaving method of braiding structure and textile faces |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006028444A1 (en) * | 2006-04-03 | 2007-11-29 | Kobleder Strickmode Gmbh & Co. | Self-supporting covering for seating and reclining furniture |
AT505223A1 (en) | 2007-04-13 | 2008-11-15 | Greiner Purtec Gmbh | SEAT, ESPECIALLY FOR PUBLIC TRANSPORT |
AT508448B1 (en) * | 2008-12-29 | 2016-03-15 | Team 7 Natürlich Wohnen GmbH | CHAIR |
GB2551718A (en) * | 2016-06-27 | 2018-01-03 | Orangebox Ltd | Textile support cover for a chair |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1729980A1 (en) * | 1968-02-28 | 1971-07-08 | Germeshausen Karl Heinz | Upholstered seating |
DE2454471B2 (en) * | 1974-11-16 | 1978-02-09 | Veyhl, Wolf, 7261 Zwerenberg | UPHOLSTERED FURNITURE |
DE10148645A1 (en) * | 2001-10-02 | 2003-04-10 | Dauphin Friedrich W Gmbh | Backrest for a chair |
US20040160109A1 (en) * | 2003-02-19 | 2004-08-19 | Homecrest Industries, Inc. | Chair seat with firm but resilient front edge |
-
2005
- 2005-01-12 DE DE102005001477A patent/DE102005001477A1/en not_active Withdrawn
- 2005-12-28 AT AT05028594T patent/ATE389340T1/en active
- 2005-12-28 DE DE502005003299T patent/DE502005003299D1/en active Active
- 2005-12-28 EP EP05028594A patent/EP1680981B1/en not_active Not-in-force
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2165628A1 (en) | 2008-09-20 | 2010-03-24 | Alfons Venjakob Gmbh & Co. KG | Chair with back rest and method for its manufacture |
DE202011001387U1 (en) | 2011-01-12 | 2011-03-17 | Design Ballendat Gmbh | Chair with knitted seat element |
CN107594884A (en) * | 2017-10-19 | 2018-01-19 | 惠阳维信纺织工业有限公司 | The weaving method of braiding structure and textile faces |
Also Published As
Publication number | Publication date |
---|---|
DE102005001477A1 (en) | 2006-07-20 |
DE502005003299D1 (en) | 2008-04-30 |
EP1680981A1 (en) | 2006-07-19 |
ATE389340T1 (en) | 2008-04-15 |
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