PIECE OF FURNITURE AND METHOD FOR ASSEMBLING A PIECE OF FURNITURE

Abstract

A piece of furniture, in particular a piece of seating furniture, has a base part on which a movable furniture part is pivotably mounted via at least one pivot fitting, wherein the at least one pivot fitting is fixed to the base part by means of a first lever and is fixed to the movable furniture part by means of a second lever which is arranged pivotably with respect to the first lever, and a method for assembling a piece of furniture.

Claims

1. A piece of furniture (100), in particular seating furniture, comprising a base part (104) on which a movable furniture part (101, 102, 103) is pivotably mounted via at least one pivot fitting (1), wherein the at least one pivot fitting (1) is fixed to the base part (104) by means of a first lever (2) and is fixed to the movable furniture part (101, 102, 103) by means of a second lever (3) which is arranged pivotably with respect to the first lever (2), wherein the second lever (3) is fixed to a molded body (4) which is provided with a plurality of hollow chambers (7) and which forms a core of the movable furniture part (101, 102, 103).

2. The piece of furniture according to claim 1, wherein a pocket (20) for accommodating at least part of the second lever (3) is formed in the molded body (4).

3. The piece of furniture according to claim 2, wherein the second lever (3) is fixed in the pocket (20) in a clamping and/or latching manner.

4. The piece of furniture according to claim 1, wherein a stiffening structure formed by webs (8) is formed in the molded body (4) and the hollow chambers (7) are arranged between the webs (8).

5. The piece of furniture according to claim 1, wherein the molded body (4) is designed substantially plate-shaped and is composed of a plurality of individual parts (40, 41, 42).

6. The piece of furniture according to claim 1, wherein a slot (43) is formed on the molded body (4) through which the first lever (2) is passed.

7. The piece of furniture according to claim 1, wherein the molded body (4) has a substantially smooth or grid-like surface (5, 6) on two opposite sides.

8. The piece of furniture according to claim 7, wherein the two surfaces (5, 6) have a different elasticity due to the shaping of the molded body (4).

9. The piece of furniture according to claim 1, wherein the molded body (4) or the individual parts (40, 41, 42) of the molded body (4) are produced by injection molding, extrusion or 3D printing.

10. The piece of furniture according to claim 1, wherein the proportion of hollow chambers (7) in the molded body (4) in relation to the total volume is over 50%, in particular between 60% and 95%.

11. The piece e of furniture according to claim 1, wherein the molded body (4) is surrounded on its outside by a flexible cover.

12. The piece of furniture according to claim 1, wherein the movable furniture part (101, 102, 103) is pivotably mounted on the base part (104) via two or more pivot fittings (1).

13. The piece of furniture according to claim 1, wherein the movable furniture part (101, 102, 103) is designed as an armrest, footrest or headrest.

14. The piece of furniture according to claim 1, wherein the base part (104) is formed as a seat or back part of an upholstered piece of furniture or a vehicle seat.

15. The piece of furniture according to claim 1, wherein an additional component, a in the form of a display, an operating unit and/or a control unit, is fixed to the molded body (4).

16. A piece of furniture (100), in particular seating furniture, comprising a base part (104) and at least one furniture part (101, 102, 103) which is connected to the base part (104) via a moving fitting or a connecting fitting, wherein the furniture part consists of a molded body (4) which is provided with a plurality of hollow chambers (7) and forms a core of the furniture part.

17. A method for assembling a piece of furniture, in particular a piece of seating furniture, comprising the steps of providing a base part and fixing a lever of a pivot fitting to the base part; producing a molded body (4) formed from one or more individual parts (40, 41, 42) by injection molding, extrusion or 3D printing with a plurality of hollow chambers, and mounting the molded body (4) on a second lever of the pivot fitting and fixing the molded body to the second lever for pivotable mounting of the molded body (4) on the base part (104).

Description

[0022] The invention is explained in more detail below with reference to the accompanying drawings by way of an exemplary embodiment, wherein:

[0023] FIG. 1 shows a perspective view of a piece of furniture according to the invention;

[0024] FIG. 2 shows a perspective view of the movable furniture part with two pivot fittings;

[0025] FIG. 3 shows a sectional view through the molded body of FIG. 2;

[0026] FIG. 4 shows a perspective exploded view of the movable furniture part of FIG. 2;

[0027] FIGS. 5A and 5B shows two detailed views of an individual part of the molded body, and

[0028] FIG. 6 shows a view of a modified individual part.

[0029] A piece of furniture 100 is designed as a piece of seating furniture and comprises a base part 104, which has a seating surface and a frame for supporting or fastening the base part 104. The schematically illustrated piece of furniture 100 has a movable furniture part 101, which is formed as a pivotable head part and is connected to a backrest of the base part 104 via. one or more pivot fittings 1. Furthermore, a movable furniture part 102 is provided on opposite sides as a side part, which is also connected to a frame of the base part 104 via one or more pivot fittings 1. A further movable furniture part 103 is formed as a foot part and is connected to the base part 104 via one or more pivot fittings 1. In this respect, a first lever 2 of a pivot fitting 1 is fixed to the base part 104 in all movable furniture parts 101, 102 and 103, while a second lever 3, which is pivotally mounted on the first lever 2 and an be fixed in different angular positions, is fixed in each case to the movable furniture part 101, 102 or 103. The piece of furniture 100 can be designed as upholstered furniture, such as an armchair, sofa, bed, but also as a vehicle or aircraft seat or as a treatment chair. In particular, the movable furniture parts can also be used in mobile homes, ships or other vehicles.

[0030] In FIG. 2, a molded body 4 is shown which forms a core of a movable furniture part 101, 102 or 103 and is connected to the base part 104 via two pivot fittings. The molded body 4 comprises a plurality of individual parts 40, 41 and 42 which are assembled to form a unit. The individual parts 40, 41 and 42 may be inserted into one another, fixed to one another by fastening means or glued to one another.

[0031] A slot 43 is formed on the molded body 4 in the region of the pivot fitting 1, and the first lever 2 of the pivot fitting 1 is passed through the slot 43. When the molded body 4 is adjusted by rotating the pivot fitting 1, the molded body 4 pivots relative to the first lever 2, and the slot 43 is correspondingly recessed by a certain angular section in the molded body 4.

[0032] In FIG. 3, the molded body 4 is shown in section. The molded body 4 comprises a plurality of hollow chambers 7 surrounded by webs 8 of a stiffening structure. The webs 8 of the stiffening structure may be arranged in a truss-like manner to support the molded body 4, wherein the molded body 4 has a substantially smooth surface 5 and 6 on opposite skies respectively. The surfaces 5 and 6 are supported by the stiffening structure formed by webs 8. The proportion of hollow chambers 7 relative to the total volume of the molded body 4 is more than 50%, for example between 70% and 95%. In this respect, the molded body 4 can be produced with a large volume and a low dead weight. The molded body 4 or the individual parts 40, 41 and 42 of the molded body are thereby preferably produced by injection molding, extrusion or 3D printing.

[0033] Two pockets 20 are formed on the molded body 4, which have a cross-sectional geometry that corresponds substantially to the cross-sectional geometry of the lever 3. The lever 3 is of plate-shaped design, arid the pockets 20 are correspondingly rectangular in cross-section. The lever 3 can be fixed by clamping or latching to the pockets 20 of the molded body 4, so that tool-free assembly is possible. Optionally, the lever 3 can also be glued or screwed to the molded body 4.

[0034] The lever 3 may also have a different geometry, for example it may be shaped as an L-shaped elbow, in which case the pocket 20 also has a corresponding geometry.

[0035] Each individual part 40 comprises connecting means 9 formed as thickened strips which can be fixed to retaining means 10 of an adjacent individual part 40, 41 or 42 by latching, static friction or insertion. The retaining means 10 are formed, for exampie, as a groove which embraces the connecting means 9. These connecting means 9 and retaining means 10 are provided both between the individual parts 40 and between the individual parts 41, wherein the individual parts 41 are arranged on the edge side. A groove 16 delimited by webs is formed on the end face of the individual parts 41, in which further components can be fixed, for example a seam of a flexible cover for the molded body 4. Slits are also formed between the individual parts 40 in the region of the surface 5. In addition, the slot-shaped grooves 16 serve to increase the mobility of the individual part 40.

[0036] The surfaces 5 and 6 have a different elasticity when a contact pressure is applied, This is due to the fact that the stiffening structure consisting of the webs 8 is formed differently in the area adjacent to the surface 5 than adjacent to the surface 6. An additional reinforcing web 11 is provided ad acent to the surface 6, which is missing adjacent to the surface 5, As a result, the surface 5 is more elastically formed than the surface 6 when a contact pressure is applied, which can be used, for example, to optimally adapt the spring properties at the surface 5 to the intended use.

[0037] In FIG. 4, the molded body is shown in a view during assembly. The two pivot fittings 1 comprise the two levers 2 and 3, which are rotatably mounted about an axis 12 and can be fixed in different anoular positions relative to each other, as disclosed in DE 10 2017 110 253 A1 and DE 10 2015 113 749 A1. The pivot fitting 1 shown in the exemplary embodiment is only shown by way of example. Other types of pivot fittings or pivot fittings with additional linear movement can also be used.

[0038] During assembly, the web-shaped lever 3 is inserted into a pocket 20 and fixed or pressed therein, with the pocket 20 being formed on the individual part 41 of the molded body 4, in the central region between the two edge-side individual parts 41, two central individual parts 40 are provided which can be fixed to one another by inserting the connecting means 9 on the retaining means 10. Depending on the application, the number of individual parts 40 in the central region can be varied in order to change the length of the molded body 4. On opposite sides, individual parts 42 are provided on the longitudinal edges of the molded body 4, which are arranged on the edge side. The two individual parts 42 on the side of the pivot fittings 1 comprise the slot 43 for passage of the ever 2 in the region of a rounded edge. The slot 43 or clearance is required to allow the pivot fitting 1 to pivot. The lever 2 needs clearance due to the pivoting, as this would otherwise strike the individual part 42.

[0039] On the opposite side, individual parts 42 are also provided, which are fixed to the individual parts 40 and 41 via plugs 13 and 14. The pings 13 and 14 have a cross-sectional contour which is adapted to the contour of hollow chambers 7 on the individual parts 40 and 41, so that the plugs 13 and 14 can he clamped to the individual parts 40 and 41. Optionally, the plugs 13 and 14 can also be glued or screwed to the individual parts 40 and 41.

[0040] In FIGS. 5A and 5B, an individual part 42 of the molded body 4 arranged at the longitudinal edges is shown in detail, it can be seen that a slot-shaped receptacle 15 is formed on the rounded edge, into which a component can be inserted, for example a seam or a quick-hooking profile of a flexible cover surrounding the molded body 4. Furthermore, plugs 13 and 14 can be seen which are insertable into the hollow chambers on the individual parts 40 and 41.

[0041] In the illustrated exemplary embodiment, the molded body 4 is composed of eight individual parts 40, 41 and 42. The number of individual parts may of course be varied, depending on the size and shape of the molded body 4. In the illustrated exemplary embodiment, the molded body 4 is substantially plate-shaped with a flat smooth surface 5 on the upper side and a fiat smooth surface 6 on the lower side. Other geometries of a molded body 4 can also he used, for example in a curved shape or in an angular shape.

[0042] In FIG. 6, a modified individual part 40′ for a moided body is shown. As in the previous exemplary embodiment, the single part 40′ comprises connecting means 9 in the form of strips which can be fixed to U-shaped retaining means 10 of an adjacent single part 40′, 40, 41 or 42. The surfaces 5′ and 6′ are not smooth but are formed in a lattice shape. They, can also have a different elasticity when a contact pressure is applied.

[0043] A molded body 4 according to the invention can also be used for an immovable furniture part, in particular a head part, an arm part or a back part. Due to the modular structure and the low weight, an optimized and individually desionable seating furniture is created while at the same time improving the support properties, The otherwise rigid furniture parts can be connected to the base part by means of height-adjustable rods. In this case, the rods can be fixed in the molded body 4 without tools, analogously to the levers 3. The rods then form a connecting fitting.

[0044] In addition to head parts, arm parts and foot rests, a back part may also constitute a molded body 4 according to the invention or a movable furniture part according to the invention.

[0045] The levers 2 and 3 can also perform a combined rotary and sliding movement instead of a pure rotary movement about an axis, Furthermore, the levers can also be arranged to pivot relative to each other via a multi-joint mechanism.

[0046] The molded body may also be filled in the region of the cavities, Furthermore, the molded body may comprise a body having an air-filled film or a film having fabric remnants as a flexible structure.

[0047] When the parts of the molded body are 3D printed, the surfaces can be latticed or have a honeycomb structure to achieve weight savings as well as even better spring properties.

List of Reference Signs

[0048] 1 Pivot fitting

[0049] 2 Lever

[0050] 3 Lever

[0051] 4 Molded body

[0052] 5, 5′ Surface

[0053] 6, 6′ Surface

[0054] 7 Hollow chamber

[0055] 8 Web

[0056] 9 Connecting means

[0057] 10 Retaining means

[0058] 11 Reinforcing web

[0059] 12 Axis

[0060] 13 Pug

[0061] 14 Plug

[0062] 15 Receptacle

[0063] 16 Groove

[0064] 20 Pocket

[0065] 40, 40′ Individual part

[0066] 41 Individual part

[0067] 42 Individual part

[0068] 43 Slot

[0069] 100 Piece of furniture

[0070] 101 Furniture part

[0071] 102 Furniture part

[0072] 103 Furniture part

[0073] 104 Base part