Element for a seat

Abstract

The invention relates to an element for a piece of seating furniture, which forms the backrest (100) and / or the seat surface and / or at least one armrest of the seating furniture, comprising a frame element (120), wherein the frame element (120) has at least one piping groove (121), wherein at least one surface element (110) made of textile material (120A) is provided with an at least partially circumferential piping, which can be inserted into the at least one piping groove (121) of the frame element (120), and wherein at least one release element (200) is provided which cooperates with the frame element (120) and with which the piping (111) of the surface element (110) can be removed from the piping groove (121) without the need for tools.

Description

[0001] The invention relates to an element for a piece of seating furniture, which forms the backrest and / or the seat surface and / or at least one armrest of the seating furniture, with a frame element, wherein the frame element has at least one piping groove, and wherein at least one surface element made of textile material is provided with an at least partially circumferential piping which can be inserted into the piping groove of the frame element.

[0002] Modern seating furniture, especially office furniture, features a wide variety of designs, particularly for their backrests, seats, and armrests. Typically, a frame is provided on which a textile covering is arranged, serving as the seat or backrest.

[0003] EP 1 248 546 B1 describes an element for the backrest and / or seat of a piece of seating furniture, comprising a frame and a pocket-like covering pulled over the frame. This pocket-like covering has a piping that engages a groove in the narrow edge of the frame. A similar arrangement can also be found in DE 10 2013 102 410 A1.

[0004] If the covering becomes dirty or damaged, for example, it may be necessary to replace it. This usually requires additional tools to remove the covering from the piping groove or to attach the new covering. However, if used improperly, these additional tools can damage the replaced covering, especially if it is designed as a flat element rather than a pocket.

[0005] It is therefore an object of the invention to eliminate the disadvantages of the known prior art.

[0006] This object is achieved according to the invention by an element of the type mentioned above in that the surface element has at least one release element that interacts with the frame element and with which the piping of the surface element can be removed from the piping groove without the use of tools. This release element is a component that is preferably arranged on the surface element and, when installed, fixes the surface element in its position on the frame element, preferably the piping of the surface element in the piping groove of the frame element.

[0007] In a particularly preferred embodiment of the invention, the at least one release element engages at least partially in the piping groove of the frame element when the surface element is inserted. By actuating this release element, the piping of the surface element is preferably lifted out of the piping groove without the need to insert a suitable tool between the surface element or the piping of the surface element and the piping groove.

[0008] This release element is typically made of a plastic material, such as rubber. To prevent this release element from protruding from the backrest, seat, or armrest in the use position, in which the surface element is fixed to the frame element, a preferred embodiment of the invention provides that the frame element has a receptacle for the at least one release element. This receptacle is particularly preferably designed as a recess or passage in the frame element and essentially has the outer contours of the release element, so that the release element is essentially flush with the surface of the frame element in the use position.

[0009] For tool-free removal of the piping of the surface element from the piping groove of the frame element, the at least one release element preferably has a gripping part and a fixing part, with the fixing part at least partially engaging the piping groove of the frame element. This makes the release element particularly easy to operate.

[0010] In a first embodiment of the invention, the fixing part and the handle part are made in one piece from a plastic material, with the fixing part comprising a metal element that, when the surface element is inserted, interacts with at least one magnet arranged in the region of the piping groove of the frame element. The release element is preferably arranged in a non-detachable manner in the region of the piping of the surface element, particularly preferably sewn to the textile material of the surface element. This variant allows for particularly easy replacement of the surface element. Likewise, due to the small number of individual parts, the element according to the invention is easy to manufacture and assemble.

[0011] In an alternative embodiment of the invention, it is provided that the release element is designed as a separate rotary element, wherein the handle part is designed substantially rotationally symmetrical or cylindrical, and a fixing part is arranged on the handle part, which is designed as a tongue which, when the surface element is inserted, at least partially engages in the piping groove of the frame element.

[0012] In order to ensure free accessibility and thus particularly simple operation of the release element, a preferred embodiment of the invention provides that the frame element has a front side and a back side, wherein when the surface element is inserted, the front side of the frame element is at least partially, preferably completely, covered by the surface element, and the at least one piping groove is arranged on the back side of the frame element.

[0013] The invention is explained in more detail below using non-limiting embodiments with accompanying figures. In these figures: Fig. 1 shows a first embodiment of the invention in an exploded view; Fig. 2 shows the invention according to Fig. 1 in the assembled state; Fig. 3A the invention according to Fig. 2 in a view from behind; Fig. 3B shows a sectional view of the invention along the lines AA of Fig. 3A ; Fig. 3C Detail C from Fig. 3B ; Fig. 4A a second view of the invention from Fig. 1 in an exploded view; Fig. 4B a sectional view of the invention along the lines BB of Fig. 4A ; Fig. 5 a second embodiment of the invention in an exploded view; Fig. 6A the invention according to Fig. 5 in the assembled state; Fig. 6B the detail D from the Fig. 6A ; and Fig. 7Aand Fig. 7B two further detailed views of the release element from the Fig. 6A .

[0014] A first variant of the invention is described in the Figuren 1 bis 4B Here, the element according to the invention is designed as a backrest 100 of a swivel chair.

[0015] The Fig. 1 shows a surface element 110 made of a textile material 110A, which is, for example, mesh-like. This surface element 110 has a circumferential piping 111, with a release element 200 arranged on the textile material 110A, namely sewn in the immediate vicinity of the piping 111.

[0016] Furthermore, a frame element 120 is provided, which has a circumferential piping groove 121. The piping groove 121 is arranged on a surface 120A, which, in the assembled state of the backrest 100, forms the substantially exposed rear side 120A of the frame element 120 ( Fig. 2 ).

[0017] Furthermore, a receptacle 122 is provided in the frame element 120 as a recess for receiving the release element 200.

[0018] In the Fig. 2 the surface element 110 and the frame element 120 are assembled and form the backrest 100. Here, the frame element 120, whose outer contour is slightly smaller than the surface element 110, is enclosed on its narrow sides 120B by the surface element 110, while the piping 111 of the surface element 110 is completely received in the piping groove 121 of the frame element 120.

[0019] In the Fig. 3A the backrest 100 is shown in a view from the rear side 120A, while in the Fig. 3B a section plane extending essentially transversely to the vertical axis of the backrest 100 along the section line A - A is shown. In the Fig. 3C is the detail C of the Fig. 3B shown enlarged.

[0020] It can be clearly seen that in the assembled state the piping 111 is received in the piping groove 121, wherein the textile material 110A of the surface element 110 encloses the narrow side 120B of the frame element, while the rear side 120A of the frame element 120 is substantially exposed.

[0021] The Fig. 4B shows a sectional view along the section line B - B from the Fig. 4A 1 shows, once again in detail, the release element 200 arranged on the surface element 110. A grip part 201 is provided, which is advantageously made of an elastic thermoplastic material, for example, rubber. A substantially rigid fixing part 202 of the release element 200, which is formed integrally with the grip part 201, contains a metal plate (not shown) which, in the assembled state, interacts with a magnet (not shown) arranged in the receptacle 122 of the frame element 120.

[0022] Fig. 4C shows a sectional detailed view of the backrest 100, in which the piping 100 of the surface element 110 is arranged in the piping groove 121 of the frame element 120, with the elastic grip part 201 substantially protruding from the surface of the frame element 120. In this position, the piping 111 can be removed from the piping groove 121 by simply pulling on the grip part 201 with the aid of the release element 200, thus allowing the surface element 110 to be removed from the frame element 120 without the need for additional tools.

[0023] In the Figuren 5 bis 7 A further embodiment of the invention is shown.

[0024] In this embodiment of the invention, a frame element 120 is again provided with a circumferential piping groove 121, which is arranged on the rear side 120A of the frame element 120. Furthermore, a receptacle 122 for the release element 200 is provided in the frame element 120.

[0025] The release element 200 is designed here as a separate, rotary knob-like element, wherein a substantially cylindrical handle part 122 is provided, on the cylinder wall 201A of which a tongue-like fixing part 202 is arranged.

[0026] In order to arrange the surface element 110, which is made of a textile, for example net-like material 110A, with its surrounding piping 111 on the frame element 120 and to fix it in its position, the release element 200 is inserted into the receptacle 122 of the frame element 120 and rotated about its axis of rotation until the piping 111 is fixed in the piping groove 121 by means of the tongue-like fixing part 202 ( Figs. 6A and 6B ).

[0027] If the surface element 110 is now to be removed, the release element 200 is rotated with the aid of the handle element 201 until the fixing part 202 of the release element 200, whose length is greater than the distance between the cylinder wall 201A of the handle part 201 and the bottom of the piping groove 121, pushes the piping 111 out of the piping groove 121 ( Figs. 7A and 7B ). This allows the surface element 110 to be easily lifted off the frame element 120.

[0028] It is understood that the present invention is not limited to the above-mentioned embodiments. In particular, the element according to the invention can function not only as a backrest; the same system can also be used for covering seat surfaces and / or armrests. Essential to the invention is the provision of a release element that interacts with the surface element and the frame element in such a way that the surface element can be easily removed without additional tools. Likewise, it can be provided that, in addition to the described surface element, further upholstery elements and / or covers (slipcovers) are arranged on the frame element and / or surface element.

Claims

1. Element for a piece of seating furniture, which forms the backrest (100) and / or the seat and / or at least one armrest of the seating furniture, with a frame element (120), wherein the frame element (120) has at least one piping groove (121), and wherein at least one surface element (110) made of textile material (120A) is provided with an at least partially circumferential piping, which can be inserted into the at least one piping groove (121) of the frame element (120), characterized in that at least one release element (200) cooperating with the frame element (120) is provided, with which the piping (111) of the surface element (110) can be removed from the piping groove (121) without tools.

2. Element according to claim 1, characterized in that the at least one release element (200) engages at least partially in the piping groove (121) of the frame element (120) when the surface element (110) is inserted.

3. Element according to claim 1 or 2, characterized in thatthe frame element (120) has a receptacle (122) for the at least one release element (200).

4. Element according to one of claims 1 to 3, characterized in that the at least one release element (200) has a grip part (201) and a fixing part (202), wherein the fixing part (202) engages at least partially in the piping groove (121) of the frame element (120).

5. Element according to one of claims 1 to 4, characterized in that the release element (200) is arranged on the surface element (110), preferably sewn onto the textile material (110A).

6. Element according to claim 4, characterized in that the fixing part (202) and the grip part (201) of the release element (200) are made in one piece from a plastic, wherein the fixing part (202) has a metal element which, when the surface element (110) is inserted, interacts with at least one magnet arranged in the region of the piping groove (121) of the frame element (120).

7. Element according to one of claims 1 to 4, characterized in that the release element (200) is designed as a separate component.

8. Element according to claim 7, characterized in that the release element (200) is designed as a rotary element, wherein the handle part (201) is designed to be substantially rotationally symmetrical or cylindrical, and a fixing part (202) is arranged on the handle part (201), which is designed as a tongue which, when the surface element (110) is inserted, at least partially engages in the piping groove (121) of the frame element (120).

9. Element according to one of claims 1 to 8, characterized in that the frame element (120) has a front side and a back side (120A), wherein when the surface element (110) is inserted, the front side of the frame element (120) is at least partially, preferably completely, covered by the surface element (110), and the at least one piping groove (121) is arranged on the back side (120A) of the frame element (120).

10. Use of an element for a piece of seating furniture according to one of claims 1 to 9 for forming a backrest (100) and / or a seat surface and / or at least one armrest of the seating furniture.

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