EP3987978B1 - Chair and method for assembly - Google Patents
Chair and method for assembly Download PDFInfo
- Publication number
- EP3987978B1 EP3987978B1 EP21194950.8A EP21194950A EP3987978B1 EP 3987978 B1 EP3987978 B1 EP 3987978B1 EP 21194950 A EP21194950 A EP 21194950A EP 3987978 B1 EP3987978 B1 EP 3987978B1
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- EP
- European Patent Office
- Prior art keywords
- seat
- connection
- support
- chair
- frame
- 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.)
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- 238000000034 method Methods 0.000 title claims description 11
- 230000007704 transition Effects 0.000 claims description 12
- 210000003746 feather Anatomy 0.000 claims description 3
- 239000012858 resilient material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004806 packaging method and process Methods 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
- A47C4/00—Foldable, collapsible or dismountable chairs
- A47C4/02—Dismountable chairs
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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
- A47C3/023—Rocking chairs having elastic frames made of tubular material
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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
- A47C3/12—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats with shell-shape seat and back-rest unit, e.g. having arm rests
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/54—Supports for the arms
- A47C7/546—Supports for the arms of detachable type
Definitions
- the present invention relates to a chair and a method for assembling it.
- WO1987/005479 A1 describes a chair in which a seat is clamped into a frame, with an additional clamp securing the connection. Upholstery is then attached to the seat by placing the outer edge of the cover in a groove below the seat and then securing it with a long elastic band.
- the present invention is based on the object of providing a chair that is easy to assemble.
- this object is achieved by a chair having the features of patent claim 1 and/or by a method having the features of patent claim 11.
- the finding underlying the present invention is that a chair with a modular structure made up of individual parts can be packaged much more compactly, which can save costs and, as a result, the price of such a chair can be drastically reduced, especially in online trading.
- the idea underlying the present invention is to use simple attachable and detachable connections between the individual parts of the chair so that the recipient, who is generally an end customer, can assemble the chair in a simple manner without having to resort to the use of tools.
- At least one frame, one seat support and one seat structure are provided as individual parts of the chair according to the invention. These three individual parts can be connected or disconnected without tools using appropriate connecting devices. When disconnected, these individual parts can be arranged in such a way that the packaging of a disassembled chair can advantageously be made significantly smaller. All mechanical connection types that meet the requirements of tool-free connection and disconnection can be used as connecting devices.
- the seat support and the seat structure form the seat of the chair.
- the seat support is made in one piece and contains a generally horizontally aligned Seat shell and a backrest that is usually aligned vertically.
- other chair components such as armrests can be formed as a single piece on the seat support.
- the seat structure contains a seat surface of the chair, which is designed for a person to sit down comfortably.
- the seat surface can be shaped in a shell-like manner to suit.
- the frame of the chair is designed to support the weight of a person sitting on the chair.
- This can be any form of frame that is suitable for the task.
- the frame can be made of metal, wood or plastic. It can itself be modular and can be dismantled into further elements.
- the frame can have first connecting means of the first connecting device for forming the first connection with the seat support. Alternatively, the first connecting means can themselves be connected to the frame.
- the frame basically has support elements such as chair legs for transferring the weight of the person sitting on the chair to the floor.
- the first connecting means on the frame are designed to form the first connection between the frame and the seat support with corresponding first connecting means on the seat support.
- the connecting means of the seat support corresponding to the connecting means of the frame are preferably formed on an underside of the seat shell. However, they can also be formed at another location, for example on a rear side of the backrest.
- the seat support is connected to the seat structure via a second connection to form a seat.
- the seat support and the seat structure are also designed to absorb a weight force a seated person.
- the seat therefore has a seat and a backrest and is preferably used as an office chair.
- the seat support can be made of wood or plastic, in particular from an injection mold. Special types of wood for an attractive design can also be used.
- the first and second connections can be made and released without tools.
- a "tool-free" connection and release connection is understood here and throughout the patent application to mean that no tools such as screwdrivers, pliers, Allen keys and the like are required to make the connection. It is usually sufficient to bring the corresponding individual parts together by hand to form the connection. Release is also carried out solely by using a person's hands.
- the first and second connecting devices can be identical devices or structurally different devices.
- connecting means are used which are attached and/or formed on the individual parts to be connected.
- First connecting means are formed (or attached) on the frame and seat support, and second connecting means are formed (or attached) on the seat support and seat structure.
- the connecting means correspond to one another in such a way that a secure connection is formed between the frame and the seat support, and between the seat support and the seat structure.
- the first and second connecting devices are designed to form a positive connection.
- a positive connection is generally preferable to a frictional connection due to its lower wear and the lower amount of force required to form the connection.
- the connecting devices can also be designed to form a frictional connection.
- the first and second connecting devices can be designed in particular to form a snap connection, tongue and groove connection, key connection or dovetail connection. Such connections can be formed reliably and easily with appropriate components.
- a snap lock is particularly preferred here due to its simple and intuitive connection technology.
- a snap connection is usually formed in such a way that a joining part deforms elastically when moving into a counterpart and then hooks releasably into the counterpart.
- an armrest support which has at least one armrest. Armrests increase comfort and the user experience and are therefore used in particular in office chairs where a person is expected to sit for a long time.
- the at least one armrest is formed in one piece with the armrest support.
- the armrest support and the seat support are connected to one another via a third connecting device. In this way, an armrest can be connected integrally to the seat in a modular manner.
- the third connecting device has third connecting means which are designed and arranged relative to one another in such a way as to form a third tool-free connectable and tool-free detachable connection This means that the armrest can also be easily attached to the chair.
- the third connecting device is designed to form a positive connection.
- the third connecting device is designed to form a snap connection, tongue and groove connection, key connection or dovetail connection.
- the third connecting device can be structurally identical or different to the first and second connecting devices. With such a connection, armrests can be connected to the seat reliably and easily.
- the seat support is designed to be connected to the armrest support in a transition area between the seat shell and the backrest.
- the transition area is typically a rounded area of the seat support, which connects the more vertically aligned backrest with the more horizontally aligned seat shell.
- the armrest support has a first and a second armrest, which are arranged on both sides and are connected to one another via a mounting section of the armrest support.
- the seat support and the mounting section of the armrest support are connected to one another via the third connecting device. In this way, both armrests can be connected to the seat support with just a single connecting device, which simplifies assembly.
- the seat structure has a seat cushion which is provided as a seat surface.
- the seat cushion is provided to increase the comfort of a person sitting on the chair.
- the seat cushion can in particular have an elastic material, whereby the degree of elasticity can also be adjusted according to the user's wishes.
- the frame is designed as a cantilever frame.
- a cantilever frame is particularly popular for office chairs due to its attractive design and comfortable seating experience.
- the frame is designed as a tubular frame and has tubular elements.
- the tubular elements can be round tubes, or tubes with a rectangular cross-section or other cross-section. Combinations of different types of tubes can also be provided.
- the dimensioning and material design of each tubular element of the tubes can be adapted to the expected weight load of the corresponding tubular element.
- the frame has a seat base on which the seat support is held. The seat is thus securely held on the frame so that a weight transfer from the seat support to the frame can be reliably established.
- the frame can also have a backrest base to hold the backrest of the seat support.
- the first connecting means on a frame designed as a tubular frame are cross tubes, into which corresponding connecting means of the seat support can be accommodated. Tubes aligned differently to cross tubes are also conceivable as connecting means.
- the first connecting device is designed as a first snap connection.
- a snap connection is a connection that is easy to form and is therefore well suited for the chair according to the invention.
- the seat support has receiving areas on an underside of the seat support, which are designed to be attached to the frame in a translational manner along a predetermined direction to form the first snap connection.
- the connecting means of the frame for example cross tubes, engage in the receiving areas on the underside of the seat support when they are assembled. In this way, a simple translational movement is sufficient to form the first connection, which simplifies the assembly of the chair.
- the predetermined direction for forming the first snap connection runs diagonally downwards and backwards relative to the seat and frame.
- Downwards is generally understood to mean a more vertical direction towards the floor
- backwards is generally understood to mean a more horizontal direction from the seat surface or the seat structure or the seat shell towards the backrest.
- Diagonal is understood to mean a mixture of the two directions, i.e. a direction that generally includes horizontal and vertical components. This can be a direction pointing 45° downwards, but is not limited to this.
- the direction “diagonally downwards and backwards” is therefore to be understood as the direction that usually also describes the "sitting direction” when a user sits down on the chair. This design thus achieves simple and intuitive assembly of the seat support to the frame.
- the seat support is designed to accommodate a backrest structure on the backrest
- the seat can be flexibly equipped, for example with a back cushion, which can be made soft or hard depending on the required shape.
- the seat support and the backrest structure are connected to one another via a fourth connecting device.
- the fourth connecting device has connecting means which are designed and arranged in relation to one another in order to form a fourth connection which can be connected and released without tools.
- the backrest structure like the seat structure, for example, can be integrated into the chair in a modular manner.
- the additional step of connecting an armrest support to the seat support via a third connection is provided.
- the armrest support has at least one armrest, but preferably two armrests connected via an assembly section.
- the armrest support is connected to a transition area of the seat support between the backrest and the seat shell.
- armrests can be easily connected to the chair in this way.
- this connection enables an attractive and modern design of the armrests, which is particularly advantageous for use as an office chair.
- Fig. 1a-1b show schematic cross-sectional representations of an embodiment of a chair 1 not according to the invention.
- FIGS. 1a and 1b The embodiment of a chair 1 shown is suitable for use as an office chair or conference chair.
- Figure 1a shows schematically individual components before assembly of the chair 1, while Figure 1b shows chair 1 in assembled form.
- the chair 1 comprises a frame 2 and a seat 3.
- the frame 2 has support elements 31 such as chair legs 31 in this embodiment for contact with the floor and can can therefore be regarded as a connecting piece between the seat 3 and the (foot)floor.
- the seat 3 has a seat structure 5 and a seat support 4, which in turn has a seat shell 6 and a backrest 7, wherein the seat shell 6 and the backrest 7 are connected to one another in one piece.
- the seat support 4 and the frame 2 are to be connected to one another via a first connecting device 8 (indicated by the arrow in Figure 1a indicated) or are connected ( Figure 1b ).
- a first connecting device 8 indicated by the arrow in Figure 1a indicated
- Figure 1b the seat structure 5 and the seat support 4 are connected to one another via a second connecting device 9.
- the latter connection forms the seat 3 of the chair 1 in this embodiment.
- the first connecting device 8 and the second connecting device 9 each have first connecting means 10 and second connecting means 11, which are designed and arranged relative to one another in such a way as to form a first connection 12 that can be connected and released without tools and a second connection 13 that can be connected and released without tools.
- the connecting means 10, 11 are schematically shown as projections or recesses in the corresponding components that are arranged at a distance from one another and correspond in size.
- the first connecting device 8 and the second connecting device 9 are designed to form a positive connection. In further embodiments, the first connecting device 8 and the second connecting device 9 are designed to form a non-positive connection.
- a positive connection is generally preferable to a frictional connection due to its lower wear and the lower amount of force required to form the connection 12, 13.
- the first connecting device 8 and second connecting device 9 are both designed to form a snap connection in this exemplary embodiment.
- the first connecting device 8 and second connecting device 9 are designed as a tongue and groove connection, a feather key connection or a dovetail connection.
- the first connecting device 8 and second connecting device 9 are formed from various of the positive connections 12, 13 listed above. Combinations of positive and frictional connections are also possible, for example in the form of a positive first connection 12 and a frictional second connection 13, or vice versa, as well as within a connection 12, 13 formed from frictional and positive connections.
- Fig. 2a-2b show schematic cross-sectional representations of an embodiment of a chair 1 according to the invention.
- the armrest support 14 has at least one armrest 15, 16.
- the armrest support 14 has a first armrest 15 and a second armrest 16 (in the view of the Figures 2a and 2b hidden behind the first armrest 15), which are arranged on both sides and are connected to one another via a mounting section 21 of the armrest support 14.
- the armrest support 14 enables a modular integration of the armrests 15, 16 into the seat 3. Armrests 15 and 16 increase the comfort and user experience of the chair 1 considerably and are therefore particularly suitable for use with office chair 1.
- the armrest support 14 and the seat support 4 are connected to one another via a third connecting device 17.
- the seat support 4 and the mounting section 21 of the armrest support 14 are connected to one another via the third connecting device 17.
- the third connecting device 17 has third connecting means 18 which are designed and arranged in relation to one another in such a way as to form a third connection 19 which can be connected and released without tools.
- the connecting means 18 form a positive snap connection analogous to the first connecting device 8 and second connecting device 9.
- the third connecting means 18 are designed to form a positive tongue and groove connection, key connection, dovetail connection, or to form a force-fit connection 19.
- the armrests 15, 16 can also be connected to the chair 1 in a simple manner using the third connecting device 17.
- the seat support 4 is designed for connection to the armrest support 14 at a transition area 20 between the seat shell 6 and the backrest 7.
- the transition area forms a slope that is inclined at approximately 45° to the horizontal or vertical direction, or to the backrest 7 and seat shell 6.
- the first connecting device 8 is designed as a first snap connection 8.
- the seat support 4 has receiving areas 26 on an underside 4a of the seat support 4, which are designed to be attachable to the frame 2 in a translational manner along a predetermined direction T to form the first snap connection. A simple translational movement is thus sufficient to form the first connection 12, which simplifies the assembly of the chair 1.
- the frame 2 is designed as a cantilever frame in that the frame 2 has vertical elements on only one side (the front) of the chair 1, so that the chair 1 can "swing" backwards.
- a cantilever frame is particularly popular for office chairs due to its attractive design and comfortable seating experience.
- Fig. 3a-3b show schematic cross-sectional representations of a further embodiment of a chair 1 not according to the invention.
- FIG. 3a shows schematically the individual components before assembling the chair 1
- Figure 3b shows the chair 1 of this embodiment in assembled form.
- the seat support 4 is designed to accommodate a backrest structure 17 on the backrest 7.
- the backrest structure 17 is equipped with a back cushion, which can be made soft or hard as required to give it a desired shape.
- the seat support 4 and the backrest structure 17 are connected to one another via a fourth connecting device 28.
- the fourth connecting device 28 has fourth connecting means 29, which are designed and arranged relative to one another in such a way as to form a fourth connection 30 that can be connected and released without tools.
- Analogous to the first and second connecting means 10, 11, the third connecting means 18 are also drawn and indicated here as spaced-apart projections and recesses. In this way, the backrest structure 27 can be integrated modularly into the chair 1, analogous to the seat structure 5 and the seat support 4.
- Fig.4 shows a perspective exploded view of another embodiment of a chair 1 according to the invention.
- the Indian Figure 4 Chair 1 shown is structurally based on the chair shown in the previous Figures 1a to 3b , especially in the Figures 2a and 2b , shown chair 1.
- the seat structure 5 has a seat cushion 22, which is provided as a seat surface 23.
- the seat cushion 22 is intended to increase the comfort for a user of the chair 1, and can be easily adjusted due to the simple exchangeability of the seat structure 5.
- the seat cushion 22 contains a elastic material, whereby the degree or strength of elasticity can be adjusted according to the user's wishes.
- the frame 2 is designed as a tubular frame 2 and has a plurality of tubular elements 24.
- the tubular elements 24 are designed here as round tubes.
- the tubes are designed with a rectangular cross-section or other cross-section, or as a combination of different types of tubes.
- the frame 2 has a seat base 25 on which the seat support 4 is received.
- the seat base contains cross tubes 10, which serve as the first connecting means 10.
- the frame 2 and its tubular elements 24 are designed in terms of material and dimensions to absorb the weight of a person sitting on the chair 1.
- the frame 2 is also designed as a cantilever frame.
- the first connecting device 8 is designed as a first snap connection 8.
- the seat support 4 has on a bottom side 4a of the seat support 4 (shown in the Figure 5 ) receiving areas 26, which are designed to be attachable to the frame 2 in a translational manner along a predetermined direction T to form the first snap connection.
- the connecting means 11 of the frame 2, i.e. in this case the Figure 4 The cross tubes 11 shown in the drawing engage during assembly in the Figure 5 recognizable receiving areas 26 on the underside 4a of the seat support 4.
- FIG 4 An arrow is drawn which shows the predetermined direction T for forming the first snap connection. It can be seen that the arrow is relative to the seat 3 and frame 2 of the chair 1 points "obliquely downwards and backwards". "Downwards” is to be understood as a more vertical direction towards the floor, while “backwards” is to be understood as a more horizontal direction from the seat surface or the seat structure 5 or the seat shell 6 towards the backrest 7. "Oblique” is to be understood as a mixture of the two directions, i.e. a direction that generally contains horizontal and vertical components. In this exemplary embodiment, it is a direction T pointing downwards at approximately 45°. In other embodiments, the direction T can deviate from the value 45°, i.e.
- the first connecting device 8 can be provided, in which the first connection 12 can be formed by a movement T over a very large angular range. Rotatory movements can also be used for this purpose, or can also be superimposed on a translatory movement T.
- the predetermined direction T shown here "obliquely downwards and backwards" is the direction that usually also describes the "sitting direction” that a person describes when sitting down on the chair 1. This embodiment thus achieves a simple and intuitive assembly of the seat support 4 to the frame 2.
- Fig.5 shows a schematic cross-sectional view of another embodiment of a chair 1 according to the invention.
- the seat support 4 is already connected to the frame 2.
- the receiving areas 26 are shaped in such a way that the seat support 4 can be moved with a translational movement according to the Figure 4 already shown predetermined direction T "obliquely backwards and downwards" with the frame 2.
- the receiving areas 26 have round recesses with a diameter smaller than or equal to the cross tubes 10 for receiving the cross tubes. In front of these recesses there can be a projection which elastically deforms when the cross tube 10 is inserted and returns to its original shape when the tube passes the projection. This creates a "snap" which easily indicates the formation of the first connection 12 during assembly.
- the expert will of course know other forms of snap connection which can be used here or in the other connections 12, 13, 19, 30 shown.
- the armrest support 14 is not yet connected to the seat support 4 in this illustration.
- the third connecting means 18 can be seen, which are arranged on the mounting section 21 of the armrest support 14 and the transition area 20 of the seat support 4.
- the third connecting device 7 is designed to form a positive snap connection.
- the third connecting device 17 is designed to form other positive or non-positive third connections 19.
- Fig.6 shows a schematic cross-sectional view of another embodiment of a chair 1 according to the invention.
- the armrest support 14 is connected to the seat support 4.
- the seat structure 5 with seat cushion 22 is connected to the seat shell 6 of the seat support 4.
- the second connecting means 11 of the second connecting device 9 is designed to form a snap connection between the seat structure 5 and the seat shell 6 of the seat support 4. This is shown schematically here by corresponding projections on the underside of the seat structure 5 and receptacles on the seat support 4.
- Fig.7 shows a schematic cross-sectional view of another embodiment of a chair 1 according to the invention.
- Fig.8 shows a perspective view of another embodiment of a chair 1.
- FIGS 7 and 8th show embodiments of a fully assembled chair 1 according to the invention, which can be used as an office chair. Like the chairs of the Figures 2a to 6 In the embodiments shown, chair 1 is designed as a cantilever chair.
- Fig.9 shows a perspective view of another embodiment of a chair 1 according to the invention.
- the frame has 2 chair legs 31, but is otherwise structurally identical to the Figures 4 to 8 Chairs shown 1.
- Fig.10 shows a schematic representation of a method for producing a chair 1.
- the method for producing a chair 1 initially comprises the step of (mechanically) connecting S1 a frame 2 to a seat support 4 via a first connecting device 8.
- the seat support 4 has a backrest 7, which is connected in one piece to a seat shell 6.
- the first connecting device 8 has first connecting means 10, which are designed and connected to one another in such a way are arranged to form a first tool-free connectable and tool-free detachable connection 12.
- the following step includes connecting S2 a seat structure 5 to the seat support 4 via a second connecting device 9 to form a seat 3.
- the second connecting device 9 has second connecting means 11 which are designed and arranged relative to one another in such a way as to form a second connection 13 which can be connected and released without tools.
- the seat structure 5 is preferably connected to the seat shell 6 of the seat support 4.
- the method includes the additional step of connecting S3 an armrest support 14 to the seat support 4 via a third connection 19.
- the armrest support 14 has at least one armrest 15, 16, but preferably two armrests 15, 16 connected via a mounting section 21.
- the armrest support 14 is connected according to the invention to a transition region 20 of the seat support 4 between the backrest 7 and the seat shell 6.
- steps S1 to S3 do not necessarily have to be carried out in the Fig.10 shown order (S1 before S2 before S3).
- the step of connecting S3 the armrest support 14 to the seat support 4 takes place before the step of connecting S2 the seat structure 5 to the seat support 4.
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- Chair Legs, Seat Parts, And Backrests (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Description
Die vorliegende Erfindung betrifft einen Stuhl und ein Verfahren zu dessen Montage.The present invention relates to a chair and a method for assembling it.
Über die letzten Jahre ist der Versandhandel stetig angewachsen, so dass neuerdings auch Sitzmöbel, wie beispielsweise Bürostühle, immer häufiger über den Versandhandel bestellt und erworben werden. Bei größeren Möbelstücken ist es zweckmäßig, diese in Einzelteilen zu verpacken, um so die Paketgröße zu reduzieren. Der Käufer muss das Möbelstück dann allerdings bei Erhalt aus den versendeten Einzelteilen noch zusammensetzten. Da im Allgemeinen vom Käufer eine komplexe Montage nicht vorausgesetzt werden kann, sollte das Montieren mittels einfacher und robuster mechanischen Verbindungen, insbesondere ohne Zuhilfenahme von Werkzeugen, erfolgen. Hierfür bieten sich unter anderem Schnappverbindungen besonders gut an.Over the last few years, mail order has grown steadily, so that seating furniture, such as office chairs, is now increasingly being ordered and purchased via mail order. For larger pieces of furniture, it is advisable to pack them in individual parts in order to reduce the size of the package. However, the buyer must then assemble the piece of furniture from the individual parts sent when it is received. Since complex assembly cannot generally be expected from the buyer, assembly should be carried out using simple and robust mechanical connections, in particular without the use of tools. Snap connections are particularly suitable for this.
Vor diesem Hintergrund liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen einfach montierbaren Stuhl bereitzustellen.Against this background, the present invention is based on the object of providing a chair that is easy to assemble.
Erfindungsgemäß wird diese Aufgabe durch einen Stuhl mit den Merkmalen des Patentanspruchs 1 und/oder durch ein Verfahren mit den Merkmalen des Patentanspruches 11 gelöst.According to the invention, this object is achieved by a chair having the features of
Demgemäß ist vorgesehen:
- Ein Stuhl, insbesondere Bürostuhl oder Konferenzstuhl, mit einem Gestell, und mit einem Sitz, der einen Sitzträger und einen Sitzaufbau aufweist, wobei der Sitzträger eine Sitzschale und eine Rückenlehne aufweist, die einteilig miteinander verbunden sind, wobei der Sitzträger und das Gestell über eine erste Verbindungsvorrichtung miteinander verbunden sind, wobei der Sitzaufbau und der Sitzträger über eine zweite Verbindungsvorrichtung miteinander verbunden sind, wobei die erste und zweite Verbindungsvorrichtung jeweilige erste und zweite Verbindungsmittel aufweisen, die derart ausgebildet und zueinander angeordnet sind, um eine erste und eine zweite werkzeugfrei verbindbare und werkzeugfrei lösbare Verbindung zu bilden.
- Ein Verfahren zur Montage eines Stuhls, insbesondere eines erfindungsgemäßen Stuhls, mit den Schritten: Bereitstellen eines Gestells, eines Sitzträgers und eines Sitzaufbaus, wobei der Sitzträger eine Rückenlehne aufweist, die einteilig mit einer Sitzschale verbunden ist; werkzeugfreies Verbinden des Gestells mit dem Sitzträger unter Verwendung einer ersten Verbindungsvorrichtung; werkzeugfreies Verbinden des Sitzaufbaus mit dem Sitzträger unter Verwendung einer zweiten Verbindungsvorrichtung zur Bildung eines Sitzes; wobei die erste und zweite Verbindungsvorrichtung jeweilige erste und zweite Verbindungsmittel aufweisen, die derart ausgebildet und zueinander angeordnet sind, um eine erste und eine zweite werkzeugfrei verbindbare und werkzeugfrei lösbare Verbindung zu bilden.
- A chair, in particular an office chair or conference chair, with a frame and with a seat which has a seat support and a seat structure, wherein the seat support has a seat shell and a backrest which are connected to one another in one piece, wherein the seat support and the frame are connected to one another via a first connecting device, wherein the seat structure and the seat support are connected to one another via a second connecting device, wherein the first and second connecting devices have respective first and second connecting means which are designed and arranged relative to one another in such a way as to form a first and a second connection which can be connected and released without tools.
- A method for assembling a chair, in particular a chair according to the invention, comprising the steps of: providing a frame, a seat support and a seat structure, wherein the seat support has a backrest which is connected in one piece to a seat shell; tool-free connection of the frame to the seat support using a first connection device; tool-free connection of the seat structure to the seat support using a second connection device to form a seat; wherein the first and second connecting devices have respective first and second connecting means which are designed and arranged relative to one another in order to form a first and a second connection which can be connected and released without tools.
Die der vorliegenden Erfindung zugrunde liegende Erkenntnis besteht darin, dass durch einen Stuhl mit modularem Aufbau aus Einzelteilen such eine wesentlich kompakter verpacken lässt, womit Kosten gespart werden können, und damit verbunden auch der Preis für einen solchen Stuhl speziell im Online-Handel drastisch reduziert werden kann.The finding underlying the present invention is that a chair with a modular structure made up of individual parts can be packaged much more compactly, which can save costs and, as a result, the price of such a chair can be drastically reduced, especially in online trading.
Die der vorliegenden Erfindung zugrunde liegende Idee besteht darin, einfache zusammenfügbare und lösbare Verbindungen zwischen den Einzelteilen des Stuhls zu verwenden, damit der Empfänger, welcher im Allgemeinen ein Endkunde ist, den Stuhl auf einfache Weise zusammensetzen kann, ohne dabei auf die Verwendung von Werkzeugen zurückgreifen zu müssen.The idea underlying the present invention is to use simple attachable and detachable connections between the individual parts of the chair so that the recipient, who is generally an end customer, can assemble the chair in a simple manner without having to resort to the use of tools.
Als Einzelteile des erfindungsgemäßen Stuhls sind zumindest ein Gestell, ein Sitzträger und ein Sitzaufbau vorgesehen. Diese drei Einzelteile lassen sich über entsprechende Verbindungsvorrichtungen werkzeugfrei verbinden bzw. auch wieder werkzeugfrei lösen. Diese Einzelteile sind in gelöstem Zustand derart geeignet anordenbar, dass die Verpackung eines auseinandergenommenen Stuhls vorteilhaft deutlich kleiner gestaltet werden kann. Als Verbindungsvorrichtungen kommen alle mechanischen Verbindungsarten in Frage, welche die Anforderungen des werkzeugsfreien Verbindens und Lösens erfüllen.At least one frame, one seat support and one seat structure are provided as individual parts of the chair according to the invention. These three individual parts can be connected or disconnected without tools using appropriate connecting devices. When disconnected, these individual parts can be arranged in such a way that the packaging of a disassembled chair can advantageously be made significantly smaller. All mechanical connection types that meet the requirements of tool-free connection and disconnection can be used as connecting devices.
Der Sitzträger und der Sitzaufbau bilden dabei einen Sitz des Stuhls. Der Sitzträger ist einteilig ausgebildet und enthält eine in der Regel eher horizontal ausgerichtete Sitzschale und eine in der Regel eher vertikal ausgerichtete Rückenlehne. Optional können noch andere Stuhlkomponenten, wie beispielsweise Armlehnen einteilig an dem Sitzträger ausgebildet sein. Der Sitzaufbau enthält eine Sitzfläche des Stuhls, welche zum komfortablen Hinsetzen einer Person vorgesehen ist. Die Sitzfläche kann entsprechend passend schalenförmig geformt sein.The seat support and the seat structure form the seat of the chair. The seat support is made in one piece and contains a generally horizontally aligned Seat shell and a backrest that is usually aligned vertically. Optionally, other chair components such as armrests can be formed as a single piece on the seat support. The seat structure contains a seat surface of the chair, which is designed for a person to sit down comfortably. The seat surface can be shaped in a shell-like manner to suit.
Das Gestell des Stuhls ist dazu ausgelegt, das Gewicht einer auf dem Stuhl sitzenden Person aufzunehmen. Dabei kann es sich um jegliche Form eines Gestells handeln, welches für die Aufgabe geeignet ist. Das Gestell kann aus Metall, Holz oder auch Kunststoff bestehen. Es kann seinerseits modular aufgebaut sein, und sich in weitere Elemente zerlegen lassen. Das Gestell kann erste Verbindungsmittel der ersten Verbindungsvorrichtung zum Bilden der ersten Verbindung mit dem Sitzträger aufweisen. Alternativ können die ersten Verbindungsmittel selbst an das Gestell angebunden sein. Das Gestell weist grundsätzlich Stützelemente wie Stuhlbeine zur Übertragung der Gewichtskraft der auf dem Stuhl sitzenden Person auf den Boden auf.The frame of the chair is designed to support the weight of a person sitting on the chair. This can be any form of frame that is suitable for the task. The frame can be made of metal, wood or plastic. It can itself be modular and can be dismantled into further elements. The frame can have first connecting means of the first connecting device for forming the first connection with the seat support. Alternatively, the first connecting means can themselves be connected to the frame. The frame basically has support elements such as chair legs for transferring the weight of the person sitting on the chair to the floor.
Die ersten Verbindungsmittel an dem Gestell sind dazu ausgelegt, mit korrespondierenden ersten Verbindungsmitteln an dem Sitzträger die erste Verbindung zwischen Gestell und Sitzträger zu bilden. Die zu den Verbindungsmitteln des Gestells korrespondierenden Verbindungsmittel des Sitzträgers sind vorzugsweise an einer Unterseite der Sitzschale ausgebildet. Sie können allerdings auch an einer anderen Stelle, beispielsweise an einer Rückseite der Rückenlehne, ausgebildet sein.The first connecting means on the frame are designed to form the first connection between the frame and the seat support with corresponding first connecting means on the seat support. The connecting means of the seat support corresponding to the connecting means of the frame are preferably formed on an underside of the seat shell. However, they can also be formed at another location, for example on a rear side of the backrest.
Der Sitzträger wird über eine zweite Verbindung mit dem Sitzaufbau zu einem Sitz verbunden. Der Sitzträger und der Sitzaufbau sind ebenfalls zur Aufnahme einer Gewichtskraft einer sitzenden Person ausgelegt. Der Sitz weist somit eine Sitzfläche und eine Rücklehne auf, und wird bevorzugt als Bürostuhl verwendet. Der Sitzträger kann aus Holz oder Kunststoff, insbesondere aus einer Spritzgussform, hergestellt sein. Spezielle Holzarten für ein ansprechendes Design können ebenfalls verwendet werden.The seat support is connected to the seat structure via a second connection to form a seat. The seat support and the seat structure are also designed to absorb a weight force a seated person. The seat therefore has a seat and a backrest and is preferably used as an office chair. The seat support can be made of wood or plastic, in particular from an injection mold. Special types of wood for an attractive design can also be used.
Die erste und zweite Verbindung sind dabei werkzeugfrei herstellbar und lösbar ausgebildet. Unter einer "werkzeugfrei" verbindbaren und lösbaren Verbindung ist hier und in der gesamten Patentanmeldung zu verstehen, dass keine Werkzeuge wie beispielsweise Schraubenzieher, Zange, Inbusschlüssel und dergleichen benötigt werden, um die Verbindung herzustellen. Es reicht in der Regel zur Bildung der Verbindung aus, die entsprechenden Einzelteile mit der Hand zusammenzuführen. Auch das Lösen erfolgt einzig durch die Verwendung der Hände einer Person. Grundsätzlich kann es sich bei der ersten und zweiten Verbindungsvorrichtung um baugleiche Vorrichtungen oder baulich verschiedene Vorrichtungen handeln.The first and second connections can be made and released without tools. A "tool-free" connection and release connection is understood here and throughout the patent application to mean that no tools such as screwdrivers, pliers, Allen keys and the like are required to make the connection. It is usually sufficient to bring the corresponding individual parts together by hand to form the connection. Release is also carried out solely by using a person's hands. In principle, the first and second connecting devices can be identical devices or structurally different devices.
Zur Bildung der Verbindung werden Verbindungsmittel verwendet, welche an den zu verbindenden Einzelteilen befestigt und/oder ausgebildet sind. So sind erste Verbindungsmittel an Gestell und Sitzträger, und zweite Verbindungsmittel an Sitzträger und Sitzaufbau, ausgebildet (oder befestigt). Die Verbindungsmittel korrespondieren dabei derart zueinander, dass eine sichere Verbindung zwischen dem Gestell und dem Sitzträger, und zwischen dem Sitzträger und dem Sitzaufbau gebildet werden.To form the connection, connecting means are used which are attached and/or formed on the individual parts to be connected. First connecting means are formed (or attached) on the frame and seat support, and second connecting means are formed (or attached) on the seat support and seat structure. The connecting means correspond to one another in such a way that a secure connection is formed between the frame and the seat support, and between the seat support and the seat structure.
Vorteilhafte Ausgestaltungen und Weiterbildungen ergeben sich aus den weiteren Unteransprüchen sowie aus der Beschreibung unter Bezugnahme auf die Figuren der Zeichnung. Gemäß einer Ausführungsform sind die erste und zweite Verbindungsvorrichtung zur Bildung einer jeweils formschlüssigen Verbindung ausgebildet. Ein Formschluss ist einem Kraftschluss grundsätzlich aufgrund seiner geringeren Abnutzung und des zur Bildung der Verbindung benötigten geringeren Kraftaufwands vorzuziehen. Jedoch können die Verbindungsvorrichtungen auch zur Bildung einer auch kraftschlüssigen Verbindung ausgebildet sein. Die erste und zweite Verbindungsvorrichtung können insbesondere zur Bildung einer Schnappverbindung, Nut-Feder-Verbindung, Passfederverbindung oder Schwalbenschwanzverbindung ausgebildet sein. Solche Verbindungen sind mit entsprechenden Komponenten zuverlässig und einfach zu bilden. Ein Schnappverschluss ist durch seine einfache und intuitive Verbindungstechnik hier besonders bevorzugt. Eine Schnappverbindung wird in der Regel derart gebildet, dass sich ein Fügeteil bei einer Bewegung in ein Gegenstück elastisch verformt und sich dann im Gegenstück anschließend lösbar verhakt.Advantageous embodiments and further developments emerge from the further subclaims and from the description with reference to the figures of the drawing. According to one embodiment, the first and second connecting devices are designed to form a positive connection. A positive connection is generally preferable to a frictional connection due to its lower wear and the lower amount of force required to form the connection. However, the connecting devices can also be designed to form a frictional connection. The first and second connecting devices can be designed in particular to form a snap connection, tongue and groove connection, key connection or dovetail connection. Such connections can be formed reliably and easily with appropriate components. A snap lock is particularly preferred here due to its simple and intuitive connection technology. A snap connection is usually formed in such a way that a joining part deforms elastically when moving into a counterpart and then hooks releasably into the counterpart.
Erfindungsgemäß ist ein Armlehnenträger vorgesehen, welcher zumindest eine Armlehne aufweist. Armlehnen steigern den Komfort und das Benutzererlebnis und werden daher insbesondere bei Bürostühlen verwendet, wo eine lange Sitzdauer einer Person zu erwarten ist. Die zumindest eine Armlehne ist einteilig mit dem Armlehnenträger ausgebildet. Der Armlehnenträger und der Sitzträger sind über eine dritte Verbindungsvorrichtung miteinander verbunden. Auf diese Weise kann eine Armlehne modulartig integral an den Sitz angebunden werden.According to the invention, an armrest support is provided which has at least one armrest. Armrests increase comfort and the user experience and are therefore used in particular in office chairs where a person is expected to sit for a long time. The at least one armrest is formed in one piece with the armrest support. The armrest support and the seat support are connected to one another via a third connecting device. In this way, an armrest can be connected integrally to the seat in a modular manner.
Erfindungsgemäß weist die dritte Verbindungsvorrichtung dritte Verbindungsmittel auf, die derart ausgebildet und zueinander angeordnet sind, um eine dritte werkzeugfrei verbindbare und werkzeugfrei lösbare Verbindung zu bilden. Somit kann auch die Armlehne auf einfache Weise an den Stuhl angebunden werden.According to the invention, the third connecting device has third connecting means which are designed and arranged relative to one another in such a way as to form a third tool-free connectable and tool-free detachable connection This means that the armrest can also be easily attached to the chair.
Gemäß einer weiteren Ausführungsform ist die dritte Verbindungsvorrichtung zur Bildung einer formschlüssigen Verbindung ausgebildet. Insbesondere ist die dritte Verbindungsvorrichtung zur Bildung einer Schnappverbindung, Nut-Feder-Verbindung, Passfederverbindung oder Schwalbenschwanzverbindung ausgebildet. Dabei kann die dritte Verbindungsvorrichtung baulich gleich oder auch verschieden zur ersten und zweiten Verbindungsvorrichtung ausgebildet sein. Mit einer solchen Verbindung können Armlehnen zuverlässig und einfach an den Sitz angebunden werden.According to a further embodiment, the third connecting device is designed to form a positive connection. In particular, the third connecting device is designed to form a snap connection, tongue and groove connection, key connection or dovetail connection. The third connecting device can be structurally identical or different to the first and second connecting devices. With such a connection, armrests can be connected to the seat reliably and easily.
Erfindungsgemäß ist der Sitzträger zur Verbindung mit dem Armlehnenträger an einem Übergangsbereich zwischen der Sitzschale und der Rückenlehne ausgebildet. Der Übergangsbereich ist typischerweise ein abgerundeter Bereich des Sitzträgers, welcher die eher vertikal ausgerichtete Rückenlehne mit der eher horizontal ausgerichteten Sitzschale verbindet. Durch die Anbindung der Armlehne an den Übergangsbereich des Sitzträgers kann eine einfache Integration des Armlehnenträgers an den Sitzträger und eine ansprechende und moderne Form der Armlehne erreicht werden.According to the invention, the seat support is designed to be connected to the armrest support in a transition area between the seat shell and the backrest. The transition area is typically a rounded area of the seat support, which connects the more vertically aligned backrest with the more horizontally aligned seat shell. By connecting the armrest to the transition area of the seat support, a simple integration of the armrest support into the seat support and an attractive and modern shape of the armrest can be achieved.
Gemäß einer weiteren Ausführungsform weist der Armlehnenträger eine erste und zweite Armlehne auf, welche beidseitig angeordnet sind und über einen Montageabschnitt des Armlehnenträgers miteinander verbunden sind. Auf diese Weise kann die Anzahl der Bauteile zur Anbindung der Armlehnen reduziert werden. Der Sitzträger und der Montageabschnitt des Armlehnenträgers sind über die dritte Verbindungsvorrichtung miteinander verbunden. So können beide Armlehnen mit nur einer einzigen Verbindungsvorrichtung an den Sitzträger angebunden werden, wodurch sich die Montage vereinfacht.According to a further embodiment, the armrest support has a first and a second armrest, which are arranged on both sides and are connected to one another via a mounting section of the armrest support. In this way, the number of components for connecting the armrests can be reduced. The seat support and the mounting section of the armrest support are connected to one another via the third connecting device. In this way, both armrests can be connected to the seat support with just a single connecting device, which simplifies assembly.
Gemäß einer weiteren Ausführungsform weist der Sitzaufbau ein Sitzpolster auf, welches als Sitzfläche vorgesehen ist. Das Sitzpolster ist zur Steigerung des Komforts eines auf dem Stuhl sitzenden Person vorgesehen. Zur weiteren Komfortsteigerung kann das Sitzpolster insbesondere ein elastisches Material aufweisen, wobei der Grad der Elastizität nach Benutzerwusch auch angepasst werden kann.According to a further embodiment, the seat structure has a seat cushion which is provided as a seat surface. The seat cushion is provided to increase the comfort of a person sitting on the chair. To further increase comfort, the seat cushion can in particular have an elastic material, whereby the degree of elasticity can also be adjusted according to the user's wishes.
Gemäß einer weiteren Ausführungsform ist das Gestell als Freischwingergestell ausgebildet. Ein Freischwinger ist insbesondere bei Bürostühlen aufgrund eines ansprechenden Designs und eines komfortablen Sitzerlebnisses sehr beliebt.According to a further embodiment, the frame is designed as a cantilever frame. A cantilever frame is particularly popular for office chairs due to its attractive design and comfortable seating experience.
Gemäß einer weiteren Ausführungsform ist das Gestell als Rohrgestell ausgebildet und weist Rohrelemente auf. Die Rohrelemente können dabei Rundrohre, oder auch Rohre mit rechteckigem Querschnitt oder sonstigem Querschnitt sein. Auch Kombinationen verschiedener Rohrarten können vorgesehen sein. Die Dimensionierung und Materialauslegung jedes Rohrelements der Rohre kann an eine zu erwartende Gewichtsbelastung des entsprechenden Rohrelements angepasst werden. Das Gestell weist eine Sitzbasis auf, an welcher der Sitzträger aufgenommen ist. Somit ist der Sitz sicher an dem Gestell aufgenommen, so dass eine Gewichtskraftübertragung vom Sitzträger auf das Gestell sicher hergestellt werden kann. Optional kann das Gestell auch eine Rückenlehnenbasis zur Aufnahme der Rückenlehne des Sitzträgers aufweisen. Als erste Verbindungsmittel an einem als Rohrgestell ausgebildeten Gestell bieten sich Querrohre an, in die korrespondierende Verbindungsmittel des Sitzträgers aufgenommen werden können. Auch zu Querrohren verschieden ausgerichtete Rohre sind als Verbindungsmittel denkbar.According to a further embodiment, the frame is designed as a tubular frame and has tubular elements. The tubular elements can be round tubes, or tubes with a rectangular cross-section or other cross-section. Combinations of different types of tubes can also be provided. The dimensioning and material design of each tubular element of the tubes can be adapted to the expected weight load of the corresponding tubular element. The frame has a seat base on which the seat support is held. The seat is thus securely held on the frame so that a weight transfer from the seat support to the frame can be reliably established. Optionally, the frame can also have a backrest base to hold the backrest of the seat support. The first connecting means on a frame designed as a tubular frame are cross tubes, into which corresponding connecting means of the seat support can be accommodated. Tubes aligned differently to cross tubes are also conceivable as connecting means.
Gemäß einer weiteren Ausführungsform ist die erste Verbindungsvorrichtung als eine erste Schnappverbindung ausgebildet ist. Eine Schnappverbindung stellt eine einfach zu bildende Verbindung dar, die für den erfindungsgemäßen Stuhl somit gut geeignet sind. Der Sitzträger weist dazu an einer Unterseite des Sitzträgers Aufnahmebereiche auf, welche zur Bildung der ersten Schnappverbindung translatorisch entlang einer vorbestimmten Richtung an das Gestell befestigbar ausgebildet ist. Die Verbindungsmittel des Gestells, also beispielsweise Querrohre, greifen beim Zusammensetzen in die Aufnahmebereiche an der Unterseite des Sitzträgers ein. Auf diese Weise genügt eine einfache translatorische Bewegung zur Bildung der ersten Verbindung, was die Montage des Stuhls vereinfacht.According to a further embodiment, the first connecting device is designed as a first snap connection. A snap connection is a connection that is easy to form and is therefore well suited for the chair according to the invention. For this purpose, the seat support has receiving areas on an underside of the seat support, which are designed to be attached to the frame in a translational manner along a predetermined direction to form the first snap connection. The connecting means of the frame, for example cross tubes, engage in the receiving areas on the underside of the seat support when they are assembled. In this way, a simple translational movement is sufficient to form the first connection, which simplifies the assembly of the chair.
Gemäß einer weiteren Ausführungsform verläuft die vorbestimmte Richtung zur Bildung der ersten Schnappverbindung relativ zum Sitz und Gestell schräg nach unten und nach hinten. Unter "nach unten" ist eine in der Regel eher vertikale Richtung zum Boden zu verstehen, während "nach hinten" eine in der Regel eher horizontale Richtung von der Sitzfläche bzw. dem Sitzaufbau oder der Sitzschale hin zur Rückenlehne zu verstehen. Mit "schräg" ist dabei eine Mischung der beiden Richtungen zu verstehen, also eine Richtung, die in der Regel horizontale und vertikale Komponenten beinhaltet. Es kann sich dabei um eine 45° nach unten weisende Richtung handeln, ist aber nicht auf diese beschränkt. Bei der Richtung "schräg nach unten und hinten" ist damit die Richtung zu verstehen, welche für gewöhnlich auch die "Sitzrichtung" beschreibt, wenn ein Benutzer sich auf den Stuhl setzt. Somit erreicht diese Ausbildung eine einfache und intuitive Montage des Sitzträgers an das Gestell.According to a further embodiment, the predetermined direction for forming the first snap connection runs diagonally downwards and backwards relative to the seat and frame. "Downwards" is generally understood to mean a more vertical direction towards the floor, while "backwards" is generally understood to mean a more horizontal direction from the seat surface or the seat structure or the seat shell towards the backrest. "Diagonal" is understood to mean a mixture of the two directions, i.e. a direction that generally includes horizontal and vertical components. This can be a direction pointing 45° downwards, but is not limited to this. The direction "diagonally downwards and backwards" is therefore to be understood as the direction that usually also describes the "sitting direction" when a user sits down on the chair. This design thus achieves simple and intuitive assembly of the seat support to the frame.
Gemäß einer weiteren Ausführungsform ist der Sitzträger zur Aufnahme eines Rückenlehnenaufbaus an die Rückenlehne ausgebildet ist. Auf diese Weise kann der Sitz flexibel, beispielsweise mit einem Rückenpolster, ausgestattet werden, was je nach Bedarf an eine gewünschte Form weich oder hart ausgebildet werden kann. Der Sitzträger und der Rückenlehnenaufbau sind über eine vierte Verbindungsvorrichtung miteinander verbunden. Die vierte Verbindungsvorrichtung weist Verbindungsmittel auf, die derart ausgebildet und zueinander angeordnet sind, um eine vierte werkzeugfrei verbindbare und werkzeugfrei lösbare Verbindung zu bilden. Auf diese Weise kann der Rückenlehnenaufbau ebenso, wie beispielsweise der Sitzaufbau, modular in den Stuhl integriert werden.According to a further embodiment, the seat support is designed to accommodate a backrest structure on the backrest In this way, the seat can be flexibly equipped, for example with a back cushion, which can be made soft or hard depending on the required shape. The seat support and the backrest structure are connected to one another via a fourth connecting device. The fourth connecting device has connecting means which are designed and arranged in relation to one another in order to form a fourth connection which can be connected and released without tools. In this way, the backrest structure, like the seat structure, for example, can be integrated into the chair in a modular manner.
Bei dem erfindungsgemäßen Verfahrens zur Herstellung des Stuhls ist der zusätzliche Schritt eines Verbindens eines Armlehnenträgers mit dem Sitzträger über eine dritte Verbindung vorgesehen. Der Armlehnenträger weist zumindest eine Armlehne, bevorzugt aber zwei über einen Montageabschnitt verbundene Armlehnen, auf. Der Armlehnenträger wird an einem Übergangsbereich des Sitzträgers zwischen der Rückenlehne und der Sitzschale verbunden. Wie oben bereits beschrieben, können so Armlehnen einfach einfache Weise an den Stuhl angebunden werden. Außerdem ermöglicht diese Anbindung ein ansprechendes und modernes Design der Armlehnen, was insbesondere für die Nutzung als Bürostuhl von Vorteil ist.In the method according to the invention for producing the chair, the additional step of connecting an armrest support to the seat support via a third connection is provided. The armrest support has at least one armrest, but preferably two armrests connected via an assembly section. The armrest support is connected to a transition area of the seat support between the backrest and the seat shell. As already described above, armrests can be easily connected to the chair in this way. In addition, this connection enables an attractive and modern design of the armrests, which is particularly advantageous for use as an office chair.
Die vorliegende Erfindung wird nachfolgend anhand der in den schematischen Figuren der Zeichnungen angegebenen Ausführungsbeispiele näher erläutert. Es zeigen dabei:
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Fig. 1a-1b schematische Querschnittsdarstellungen eines nicht erfindungsgemäßen Ausführungsbeispiels eines Stuhls; -
Fig. 2a-2b schematische Querschnittsdarstellungen eines erfindungsgemäßen Ausführungsbeispiels eines Stuhls; -
Fig. 3a-3b schematische Querschnittsdarstellungen eines weiteren nicht erfindungsgemäßen Ausführungsbeispiels eines Stuhls; -
Fig. 4 eine perspektivische Explosionsansicht eines weiteren erfindungsgemäßen Ausführungsbeispiels eines Stuhls; -
Fig. 5 eine schematische Querschnittsdarstellung eines weiteren erfindungsgemäßen Ausführungsbeispiels eines Stuhls; -
Fig. 6 eine schematische Querschnittsdarstellung eines weiteren erfindungsgemäßen Ausführungsbeispiels eines Stuhls; -
Fig. 7 eine schematische Querschnittsdarstellung eines weiteren erfindungsgemäßen Ausführungsbeispiels eines Stuhls; -
Fig. 8 eine perspektivische Ansicht eines weiteren erfindungsgemäßen Ausführungsbeispiels eines Stuhls; -
Fig. 9 eine perspektivische Ansicht eines weiteren erfindungsgemäßen Ausführungsbeispiels eines Stuhls; und -
Fig. 10 eine schematische Darstellung eines Verfahrens zur Herstellung eines Stuhls.
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Fig. 1a-1b schematic cross-sectional representations of an embodiment of a chair not according to the invention; -
Fig. 2a-2b schematic cross-sectional representations of an embodiment of a chair according to the invention; -
Fig. 3a-3b schematic cross-sectional representations of a further embodiment of a chair not according to the invention; -
Fig.4 an exploded perspective view of another embodiment of a chair according to the invention; -
Fig.5 a schematic cross-sectional representation of a further embodiment of a chair according to the invention; -
Fig.6 a schematic cross-sectional representation of a further embodiment of a chair according to the invention; -
Fig.7 a schematic cross-sectional representation of a further embodiment of a chair according to the invention; -
Fig.8 a perspective view of another embodiment of a chair according to the invention; -
Fig.9 a perspective view of another embodiment of a chair according to the invention; and -
Fig.10 a schematic representation of a process for manufacturing a chair.
Die beiliegenden Zeichnungen sollen ein weiteres Verständnis der Ausführungsformen der Erfindung vermitteln. Sie veranschaulichen Ausführungsformen und dienen im Zusammenhang mit der Beschreibung der Erklärung von Prinzipien und Konzepten der Erfindung. Andere Ausführungsformen und viele der genannten Vorteile ergeben sich im Hinblick auf die Zeichnungen. Die Elemente der Zeichnungen sind nicht notwendigerweise maßstabsgetreu zueinander gezeigt.The accompanying drawings are intended to provide a further understanding of embodiments of the invention. They illustrate embodiments and, in conjunction with the description, serve to explain principles and concepts of the invention. Other embodiments and many of the noted advantages will be apparent upon reference to the drawings. The elements of the drawings are not necessarily shown to scale with respect to one another.
In den Figuren der Zeichnungen sind gleiche, funktionsgleiche und gleich wirkende Elemente, Merkmale und Komponenten - sofern nichts Anderes ausführt ist -jeweils mit denselben Bezugszeichen versehen.In the figures of the drawings, identical, functionally identical and acting elements, features and components are provided with the same reference symbols, unless otherwise stated.
Das in den
Der Stuhl 1 enthält ein Gestell 2 und einen Sitz 3. Das Gestell 2 weist Stützelemente 31 wie in diesem Ausführungsbeispiel Stuhlbeine 31 zum Kontakt mit dem Boden auf und kann daher als ein Verbindungsstück zwischen dem Sitz 3 und dem (Fuß-)Boden angesehen werden.The
Der Sitz 3 weist einen Sitzaufbau 5 und einen Sitzträger 4 auf, welcher wiederum eine Sitzschale 6 und eine Rückenlehne 7 aufweist, wobei die Sitzschale 6 und die Rückenlehne 7 einteilig miteinander verbunden sind.The
In den
Die erste Verbindungsvorrichtung 8 und die zweite Verbindungsvorrichtung 9 weisen jeweils erste Verbindungsmittel 10 und zweite Verbindungsmittel 11 auf, die derart ausgebildet und zueinander angeordnet sind, um eine erste werkzeugfrei verbindbare und werkzeugfrei lösbare Verbindungen 12 und eine zweite werkzeugfrei verbindbare und werkzeugfrei lösbare Verbindungen 13 zu bilden. Hier sind die Verbindungsmittel 10, 11 als voneinander beabstandet angeordnete und in ihrer Größe korrespondierende Vorsprünge bzw. Aussparungen in den entsprechenden Komponenten schematisch dargestellt.The first connecting
Die erste Verbindungsvorrichtung 8 und die zweite Verbindungsvorrichtung 9 sind zur Bildung einer jeweils formschlüssigen Verbindung ausgebildet. Bei weiteren Ausführungsbeispielen sind die erste Verbindungsvorrichtung 8 und die zweite Verbindungsvorrichtung 9 zur Bildung einer jeweils kraftschlüssigen Verbindung ausgebildet.The first connecting
Ein Formschluss ist jedoch einem Kraftschluss grundsätzlich aufgrund seiner geringeren Abnutzung und des geringeren zur Bildung der Verbindung 12,13 benötigten Kraftaufwands vorzuziehen. Die erste Verbindungsvorrichtung 8 und zweite Verbindungsvorrichtung 9 sind in diesem Ausführungsbeispiel beide zur Bildung einer Schnappverbindung ausgebildet. Bei weiteren Ausführungsbeispielen sind die erste Verbindungsvorrichtung 8 und zweite Verbindungsvorrichtung 9 als Nut-Feder-Verbindung, Passfederverbindung oder Schwalbenschwanzverbindung ausgebildet. Bei weiteren Ausführungsformen sind die erste Verbindungsvorrichtung 8 und zweite Verbindungsvorrichtung 9 aus verschiedenen der oben angeführten formschlüssigen Verbindungen 12, 13 ausgebildet. Auch Kombinationen aus form- und kraftschlüssigen Verbindungen sind möglich, beispielsweise in Form von einer formschlüssigen ersten Verbindung 12 und einer kraftschlüssigen zweiten Verbindung 13, oder umgekehrt, als auch innerhalb einer Verbindung 12, 13 gebildet aus Kraft- und Formschluss.However, a positive connection is generally preferable to a frictional connection due to its lower wear and the lower amount of force required to form the connection 12, 13. The first connecting
Der Stuhl 1 des in den
Der Armlehnenträger 14 weist zumindest eine Armlehne 15, 16 auf. In dem Ausführungsbeispiel des Stuhls 1 weist der Armlehnenträger 14 eine erste Armlehne 15 und zweite Armlehne 16 (in der Ansicht der
Der Armlehnenträger 14 und der Sitzträger 4 sind über eine dritte Verbindungsvorrichtung 17 miteinander verbunden. So sind in diesem Ausführungsbeispiel des Stuhls 1 der Sitzträger 4 und der Montageabschnitt 21 des Armlehnenträgers 14 über die dritte Verbindungsvorrichtung 17 miteinander verbunden. Zur Anbindung an den Sitzträger 4 weist die dritte Verbindungsvorrichtung 17 dritte Verbindungsmittel 18 auf, die derart ausgebildet und zueinander angeordnet sind, um eine dritte werkzeugfrei verbindbare und werkzeugfrei lösbare Verbindung 19 zu bilden. Die Verbindungsmittel 18 bilden analog zur ersten Verbindungsvorrichtung 8 und zweiten Verbindungsvorrichtung 9, eine formschlüssige Schnappverbindung. Bei anderen Ausführungsformen sind die dritten Verbindungsmittel 18 zur Bildung einer formschlüssigen Nut-Feder-Verbindung, Passfederverbindung, Schwalbenschwanzverbindung, oder zur Bildung einer kraftschlüssigen Verbindung 19 ausgebildet. Mit der dritten Verbindungsvorrichtung 17 können auch die Armlehnen 15, 16 auf einfache Weise an den Stuhl 1 angebunden werden.The
Ferner ist zu erkennen, dass der Sitzträger 4 zur Verbindung mit dem Armlehnenträger 14 an einem Übergangsbereich 20 zwischen der Sitzschale 6 und der Rückenlehne 7 ausgebildet ist. In diesem Ausführungsbeispiel bildet der Übergangsbereich einen in etwa 45° zur horizontalen oder vertikalen Richtung, bzw. zur Rückenlehne 7 und Sitzschale 6, geneigten Abschnitt des Sitzträgers 4. Durch die Anbindung des Armlehnenträgers 14 an den Übergangsbereich des Sitzträgers 4 kann eine einfache Integration des Armlehnenträgers 14 an den Sitzträger 4. Außerdem weisen die Armlehnen 15 dadurch eine ansprechende und moderne Form auf.It can also be seen that the
In diesem Ausführungsbeispiel ist erste Verbindungsvorrichtung 8 als eine erste Schnappverbindung 8 ausgebildet. Der Sitzträger 4 weist dazu an einer Unterseite 4a des Sitzträgers 4 Aufnahmebereiche 26 auf, welche zur Bildung der ersten Schnappverbindung translatorisch entlang einer vorbestimmten Richtung T an das Gestell 2 befestigbar ausgebildet ist. So genügt eine einfache translatorische Bewegung zur Bildung der ersten Verbindung 12, was die Montage des Stuhls 1 vereinfacht.In this embodiment, the first connecting
Außerdem ist das Gestell 2 als Freischwingergestell ausgebildet, indem das Gestell 2 nur an einer Seite (der Vorderseite) des Stuhls 1 vertikale Elemente aufweist, so dass der Stuhl 1 nach hinten "schwingbar" ist. Ein Freischwinger ist insbesondere bei Bürostühlen aufgrund eines ansprechenden Designs und eines komfortablen Sitzerlebnisses sehr beliebt.In addition, the
Der Stuhl 1 des in den
In dem in den
Der in der
In dem Ausführungsbeispiel des Stuhl 1 der
In
Wie in den vorstehenden Ausführungsbeispielen ist auch in dem gezeigten Ausführungsbeispiel der
In
In dieser Darstellung ist bereits der Sitzträger 4 mit dem Gestell 2 verbunden. Die Aufnahmebereiche 26 sind dabei derart geformt, dass der Sitzträger 4 mit einer translatorischen Bewegung gemäß der in
Der Armlehnenträger 14 ist in dieser Darstellung noch nicht mit dem Sitzträger 4 verbunden. Zu erkennen sind aber die dritten Verbindungsmittel 18, welche an dem Montageabschnitt 21 des Armlehnenträgers 14 und dem Übergangsbereich 20 des Sitzträgers 4 angeordnet sind. Wie in dem vorstehenden Ausführungsbeispiel des Stuhls 1 der
In dem in
Wie in dem vorstehenden Ausführungsbeispiel des Stuhls 1 der
Die
In diesem Ausführungsbeispiel weist das Gestell 2 Stuhlbeine 31 auf, ist ansonsten strukturell gleich ausgebildet wie die in den
Das Verfahren zur Herstellung eines Stuhls 1 umfasst zunächst den Schritt des (mechanischen) Verbindens S1 eines Gestells 2 mit einem Sitzträger 4 über eine erste Verbindungsvorrichtung 8. Der Sitzträger 4 weist eine Rückenlehne 7 auf, welche einteilig mit einer Sitzschale 6 verbunden ist. Die erste Verbindungsvorrichtung 8 weist erste Verbindungsmittel 10 auf, die derart ausgebildet und zueinander angeordnet sind, um eine erste werkzeugfrei verbindbare und werkzeugfrei lösbare Verbindungen 12 zu bilden.The method for producing a
Der folgende Schritt enthält ein Verbinden S2 eines Sitzaufbaus 5 mit dem Sitzträgers 4 über eine zweite Verbindungsvorrichtung 9 zur Bildung eines Sitzes 3. Die zweite Verbindungsvorrichtung 9 weist zweite Verbindungsmittel 11 auf, die derart ausgebildet und zueinander angeordnet sind, um eine zweite werkzeugfrei verbindbare und werkzeugfrei lösbare Verbindung 13 zu bilden. Vorzugsweise wird der Sitzaufbau 5 mit der Sitzschale 6 des Sitzträgers 4 verbunden.The following step includes connecting S2 a
Erfindungsgemäß enthält das Verfahren den zusätzlichen Schritt eines Verbindens S3 eines Armlehnenträgers 14 mit dem Sitzträger 4 über eine dritte Verbindung 19. Der Armlehnenträger 14 weist zumindest eine Armlehne 15,16, bevorzugt aber zwei über einen Montageabschnitt 21 verbundene Armlehnen 15, 16, auf. Der Armlehnenträger 14 wird erfindungsgemäß an einem Übergangsbereich 20 des Sitzträgers 4 zwischen der Rückenlehne 7 und der Sitzschale 6 verbunden.According to the invention, the method includes the additional step of connecting S3 an
Zu beachten ist, dass die Schritte S1 bis S3 nicht notwendigerweise in der in
- 11
- StuhlChair
- 22
- Gestellframe
- 33
- SitzSeat
- 44
- SitzträgerSeat support
- 4a4a
- Unterseite des SitzträgersBottom of the seat support
- 55
- SitzaufbauSeat construction
- 66
- SitzschaleSeat shell
- 77
- Rückenlehnebackrest
- 88th
- erste Verbindungsvorrichtungfirst connecting device
- 99
- zweite Verbindungsvorrichtungsecond connecting device
- 1010
- erste Verbindungsmittelfirst connecting means
- 1111
- zweite Verbindungsmittelsecond connecting means
- 1212
- erste Verbindungfirst connection
- 1313
- zweite Verbindungsecond connection
- 1414
- ArmlehnenträgerArmrest supports
- 1515
- erste Armlehnefirst armrest
- 1616
- zweite Armlehnesecond armrest
- 1717
- dritte Verbindungsvorrichtungthird connecting device
- 1818
- dritte Verbindungsmittelthird connecting means
- 1919
- dritte Verbindungthird connection
- 2020
- ÜbergangsbereichTransition area
- 2121
- MontageabschnittAssembly section
- 2222
- SitzpolsterSeat cushion
- 2323
- SitzflächeSeat
- 2424
- RohrelementePipe elements
- 2525
- Sitzbasis (des Gestells)Seat base (of the frame)
- 2626
- AufnahmebereichRecording area
- 2727
- RückenlehnenaufbauBackrest construction
- 2828
- vierte Verbindungsvorrichtungfourth connecting device
- 2929
- vierte Verbindungsmittelfourth connecting means
- 3030
- vierte Verbindungfourth connection
- 3131
- StuhlbeineChair legs
- S1S1
- VerfahrensschrittProcess step
- S2S2
- VerfahrensschrittProcess step
- S3S3
- VerfahrensschrittProcess step
- TT
- vorbestimmte Schnapprichtungpredetermined snap direction
Claims (11)
- Chair (1), in particular office chair or conference chair, comprising a frame (2),comprising a seat (3) including a seat support (4) and a seat structure (5),- the seat support (4) including a seat shell (6) and a backrest (7) which are connected integrally,- the seat support (4) and the frame (2) being interconnected via a first connection device (8),- the seat structure (5) and the seat support (4) being interconnected via a second connection device (9),- the first and second connection device (8, 9) including respective first and second connection means (10, 11), which are configured and arranged with respect to one another so as to form a first and a second connection (12, 13) which can be connected and released without tools, andcomprising an armrest support (14) including at least one armrest (15, 16) which is formed integral with the armrest support (14), the armrest support (14) and the seat support (4) being interconnected via a third connection device (17), the third connection device (17) including third connection means (18), which are configured and arranged with respect to one another so as to form a third connection (19) which can be connected and released without tools, the seat support (4) being configured for connection to the armrest support (14) at a transition region (20) between the seat shell (6) and the backrest (7).
- Chair according to claim 1,
characterised
in that the first and/or the second connection device (8, 9) are configured to form a positive connection (12, 13) in each case, in particular a snap-in connection, tongue-and-groove connection, feather key connection or dovetail connection. - Chair according to either claim 1 or claim 2,
characterised
in that the third connection device (17) is configured to form a positive connection, in particular a snap-in connection, tongue-and-groove connection, feather key connection or dovetail connection. - Chair according to any of claims 1 to 3,
characterised
in that the armrest support (14) includes a first and a second armrest (15, 16), which are arranged on the two sides and interconnected via a mounting portion (21) of the armrest support (14), the seat support (4) and the mounting portion (21) of the armrest support (14) being interconnected via the third connection device (17). - Chair according to any of the preceding claims,
characterised
in that the seat structure (5) includes a seat cushion (22) which is provided as a seat surface (23), the seat cushion (22) in particular including a resilient material. - Chair according to any of the preceding claims,
characterised
in that the frame (2) is formed as a cantilever frame. - Chair according to any of the preceding claims,
characterised
in that the frame (2) is formed as a tube frame, and includes preferably round tube elements (24), the frame (2) including a seat base (25) on which the seat support (4) is received. - Chair according to any of the preceding claims,
characterised
in that the first connection device (8) is configured as a first snap-in connection (8), the seat support (4) including receiving regions (26) on a lower face (4a) of the seat support (4) which are configured to be fixable to the frame (2), translationally along a predetermined direction (T), to form the first snap-in connection (8). - Chair according to claim 8,
characterised
in that the predetermined direction (T) for forming the first snap-in connection (8) extends obliquely downwards and rearwards relative to the seat (3) and the frame (2). - Chair according to any of the preceding claims,
characterised
in that the seat support (4) is configured for a backrest structure (27) to be received on the backrest (7), the seat support (4) and the backrest structure (27) being interconnected via a fourth connection device (28), the fourth connection device (28) including fourth connection means (29), which are configured and arranged with respect to one another so as to form a fourth connection (30) which can be connected and released without tools. - Method for assembling a chair (1), in particular a chair according to any of claims 1 to 10, comprising the steps of:providing a frame (2), a seat support (4) and a seat structure (5), the seat support (4) including a backrest (7) which is connected integrally to a seat shell (6);connecting the frame (2) to the seat support (4) without tools using a first connection device (8);connecting the seat structure (5) to the seat support (4) without tools using a second connection device (9) so as to form a seat (3);the first and second connection device (8, 9) including respective first and second connection means (10, 11), which are configured and arranged with respect to one another so as to form a first and a second connection (12, 13) which can be connected and released without tools; and connecting an armrest support (14) to the seat support (4) via a third connection (19), the armrest support (14) including at least one armrest (15, 16), the armrest support (14) being connected at a transition region (20) of the seat support (4) between the backrest (7) and the seat shell (6).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020213445.6A DE102020213445B4 (en) | 2020-10-26 | 2020-10-26 | CHAIR AND METHOD OF ASSEMBLING IT |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3987978A1 EP3987978A1 (en) | 2022-04-27 |
EP3987978B1 true EP3987978B1 (en) | 2024-04-10 |
Family
ID=77640533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21194950.8A Active EP3987978B1 (en) | 2020-10-26 | 2021-09-06 | Chair and method for assembly |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3987978B1 (en) |
DE (1) | DE102020213445B4 (en) |
PL (1) | PL3987978T3 (en) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3907363A (en) | 1974-04-22 | 1975-09-23 | Steelcase Inc | Upholstery system |
NO744171L (en) | 1974-11-20 | 1976-05-21 | Staal & Stil As | |
DE3609591A1 (en) | 1986-03-21 | 1988-01-21 | Grammer Sitzsysteme Gmbh | SEAT |
DE4026900C1 (en) * | 1990-08-25 | 1992-02-06 | Fa. Frogdesign Hartmut Esslinger, 7272 Altensteig, De | |
CN201160674Y (en) * | 2008-01-29 | 2008-12-10 | 张广亮 | Chair with chair cushion |
KR20090129683A (en) * | 2008-06-13 | 2009-12-17 | 주식회사 시디즈 | Seat for chair |
DE202009003927U1 (en) * | 2009-03-23 | 2009-06-10 | Oranje Meubel B.V. | Chair with locking means |
WO2016106169A1 (en) * | 2014-12-22 | 2016-06-30 | Innovations Us Llc | Seating apparatus and methods of using the same |
CN205923488U (en) * | 2016-04-08 | 2017-02-08 | 宁波卫生职业技术学院 | Dining chair suitable for old person |
-
2020
- 2020-10-26 DE DE102020213445.6A patent/DE102020213445B4/en active Active
-
2021
- 2021-09-06 EP EP21194950.8A patent/EP3987978B1/en active Active
- 2021-09-06 PL PL21194950.8T patent/PL3987978T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE102020213445A1 (en) | 2022-04-28 |
EP3987978A1 (en) | 2022-04-27 |
DE102020213445B4 (en) | 2023-08-31 |
PL3987978T3 (en) | 2024-08-26 |
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