FURNITURE FITTING FOR MOUNTING A FURNITURE PART

Abstract

A furniture fitting for mounting, preferably movably, a first furniture part onto a second furniture part, includes a metal piece made from sheet metal, more particularly a connecting piece, having two faces spaced apart from one another by a material thickness of the sheet metal. The two faces have a regular arrangement of successive elevations and depressions, and one elevation on one of the two faces lies opposite a depression on the other of the two faces, and vice versa.

Claims

1. A furniture fitting for, preferably movably, mounting a first furniture part on a second furniture part, the furniture fitting comprising at least one metal piece manufactured from a metal sheet, in particular a connecting piece, with two surfaces that are spaced apart from one another by a material thickness of the metal sheet, wherein the two surfaces have at least one regular arrangement of successive elevations and depressions, wherein one elevation on one of the two surfaces lies opposite a depression on the other of the two surfaces, and vice versa.

2. The furniture fitting according to claim 1, wherein the at least one regular arrangement extends in a first direction and in at least one second direction transverse to the first direction, with the result that arranged adjacent to a depression in each case is a first elevation in the first direction and a second elevation in the second direction.

3. The furniture fitting according to claim 1, wherein, in each case on a surface, maxima of the elevations and depressions of the at least one regular arrangement are arranged on imaginary lines which are arranged substantially parallel to one another, preferably wherein the elevations and depressions of a first line are arranged offset by half a spacing between two elevations or depressions compared with the elevations and depressions of a second line directly adjacent to the first line.

4. The furniture fitting according to claim 1, wherein: the elevations and/or depressions of the at least one regular arrangement are formed substantially pyramid-shaped, conical, truncated-pyramid-shaped or frustoconical, the material thickness of the metal sheet is substantially the same over the entire area of the at least one regular arrangement, the at least one metal piece has at least one embossing which extends over at least two elevations and/or depressions of the at least one regular arrangement, the at least one regular arrangement of successive elevations and depressions has at least one periodicity, the material thickness of the metal sheet lies between 0.3 mm and 2.5 mm, preferably 0.4 mm and 2.0 mm, and particularly preferably is 0.5 mm or 0.7 mm, on both surfaces in each case at least three elevations that are preferably adjacent to one another have maxima which are arranged in each case in a common plane, wherein a normal spacing of these planes is between 0.1 mm and 1.0 mm, preferably 0.2 mm and 0.4 mm, larger than the material thickness of the metal sheet, or two elevations and/or depressions that follow one another directly on one of the two surfaces have a spacing of between 1.6 mm and 21.0 mm, preferably 2.0 mm and 10.0 mm, particularly preferably 3.5 mm and 6.5 mm.

5. The furniture fitting according to claim 1, wherein: on both surfaces in each case at least three elevations that are preferably adjacent to one another have maxima which are arranged in each case in a common plane, wherein these planes have a normal spacing and two elevations and/or depressions that follow one another directly on one of the two surfaces have a spacing), wherein the spacing is 2 to 8, preferably 3 to 7, particularly preferably 4 to 6, times as large as the normal spacing, or on one of the two surfaces at least three elevations that are preferably adjacent to one another have maxima which are arranged in a common plane and at least three depressions that are preferably adjacent to one another have maxima which are arranged in a common plane, wherein the planes have a normal spacing which is between 0.1 and 0.6, preferably between 0.2 and 0.4, times as large as the material thickness of the metal sheet.

6. The furniture fitting according to claim 1, wherein the at least one regular arrangement: extends over more than 50%, preferably more than 75%, of the at least one metal piece, preferably of a finished component of the furniture fitting, particularly preferably of the furniture fitting, or extends only over at least one local area, preferably wherein the local area is arranged at an edge of the at least one metal piece and/or at a connection point of the at least one metal piece, at which the at least one metal piece is connected or can be connected to a further component of the furniture fitting.

7. The furniture fitting according to claim 1, wherein the at least one metal piece has at least one flat surface which is free of the at least one regular arrangement.

8. The furniture fitting according to claim 7, wherein the at least one metal piece has a first sound absorption in the area of the at least one flat surface, and the at least one metal piece has a second sound absorption in an area with the at least one regular arrangement, wherein the second sound absorption is at least 1.1 times, preferably 1.5 times, greater than the first sound absorption.

9. The furniture fitting according to claim 7, wherein: the at least one metal piece has a first rigidity in the area of the at least one flat surface, and the at least one metal piece has a second rigidity in an area with the at least one regular arrangement, wherein the second rigidity is at least 1.1 times, at least 1.5 times, greater than the first rigidity, or the at least one flat surface is formed as a running surface for a rolling element moving on the running surface, preferably wherein the at least one metal piece has a longitudinal direction and the at least one running surface is formed as a track, which is aligned substantially parallel to the longitudinal direction of the at least one metal piece.

10. The furniture fitting according to claim 1, wherein the at least one metal piece has at least two geometrically different regular arrangements.

11. The furniture fitting according to claim 1, wherein: the at least one metal piece has at least one punching, preferably wherein the at least one punching is formed for receiving at least one fastening means, and/or is formed as a fastening means for at least one furniture component, and/or is formed substantially cylindrical, and/or is formed for mounting at least one hinge pin, and/or releases at least one adjustment element of an adjustment device, with the result that the adjustment element can be actuated by means of at least one tool, the at least one metal piece is arranged on a profiled component of the furniture fitting, preferably wherein the component is formed U-shaped in a cross section at least in areas, or the furniture fitting is formed as a runner, flap fitting or hinge.

12. A piece of furniture comprising at least one first furniture part and at least one second furniture part, wherein the piece of furniture further comprises the furniture fitting according to claim 1, with which the at least one first furniture part is mounted, preferably movably, on the at least one second furniture part.

13. A method for producing the furniture fitting, preferably at least one runner, one flap fitting or one hinge, according to claim 1, comprising the following method steps, preferably following one another in terms of time in the indicated order: at least one flat metal sheet is provided, in at least one partial area of the at least one metal sheet at least one regular arrangement of successive elevations and depressions is incorporated on two surfaces that are spaced apart from one another by a material thickness of the metal sheet, wherein an elevation on one of the two surfaces lies opposite a depression on the other of the two surfaces, and vice versa, by at least one bending, punching, cutting, coating and/or embossing step the at least one metal sheet is formed into at least one component of the furniture fitting to be produced.

14. The method according to claim 13, wherein: the at least one bending, punching, cutting, coating and/or embossing step is effected after the incorporation of the at least one regular arrangement, the at least one regular arrangement: is incorporated in the at least one partial area of the at least one metal sheet by means of at least one stamp and/or at least one roller, and/or is incorporated starting from both surfaces, and a neutral axis of the at least one metal sheet is lengthened during the incorporation of the at least one regular arrangement.

15. The method according to claim 13, wherein the at least one metal sheet is stretched during the incorporation of the at least one regular arrangement at least in the area in which the at least one regular arrangement is incorporated.

16. The method according to claim 13, wherein in a further method step at least one embossing which extends over at least two elevations or depressions of the at least one regular arrangement is embossed into the at least one metal sheet.

17. The method according to claim 13, wherein at least one, preferably strip-shaped, surface area of the at least one metal sheet is left blank during the incorporation of the at least one regular arrangement.

18. The method according to claim 13, wherein in at least one second partial area of the at least one metal sheet at least one further regular arrangement is incorporated on the two surfaces, wherein the at least one further regular arrangement is geometrically different from the at least one other regular arrangement.

19. The method according to claim 13, wherein in a further method step the at least one component of the furniture fitting to be produced is connected to at least one further component, preferably by gluing, riveting, TOX clinching, soldering and/or welding, and/or in a further method step the furniture fitting is fitted with at least one drive device and/or at least one damper.

20. A use of the formation of at least one regular arrangement of successive elevations and depressions on two surfaces, which are spaced apart from one another by a material thickness of a metal sheet, of at least one metal piece manufactured from a metal sheet, in particular a connecting piece, of a furniture fitting, wherein an elevation on one of the two surfaces lies opposite a depression on the other of the two surfaces, and vice versa, in order to increase a rigidity and/or a sound absorption of the furniture fitting at least in areas.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Further details and advantages of the present invention are explained in more detail below on the basis of the description of the figures with reference to the embodiment examples represented in the drawings, in which:

[0073] FIGS. 1a-1b show a furniture fitting in the form of a runner according to the state of the art in a perspective view and a view from the side,

[0074] FIGS. 2a-2b show a further furniture fitting in the form of a runner according to the state of the art in a perspective view,

[0075] FIGS. 3a-3b show a furniture fitting in the form of a flap fitting according to the state of the art in a perspective view and a view from the side,

[0076] FIGS. 4a-4b show a furniture fitting in the form of a hinge according to the state of the art in a perspective view and a view from the side,

[0077] FIG. 5 is a cross section of a regular arrangement of a furniture fitting according to the invention in a schematic representation,

[0078] FIGS. 6a-6b show a regular arrangement of a furniture fitting according to the invention in a perspective view,

[0079] FIG. 7 shows a metal sheet with a regular arrangement for a furniture fitting according to the invention in a view from above,

[0080] FIG. 8 shows a furniture fitting in the form of a runner according to a preferred embodiment example in a perspective view with a detailed view of the runner,

[0081] FIGS. 9a-9b show a detailed view of a furniture fitting in the form of a runner according to a further preferred embodiment example in a perspective view and a view from above,

[0082] FIG. 10a shows a metal sheet with a regular arrangement for a furniture fitting in the form of a runner according to a further preferred embodiment example with two running surfaces, embossings and punchings before a bending procedure in a view from above with a detailed view,

[0083] FIG. 10b shows the furniture fitting after a bending procedure and a further punching of the metal sheet according to FIG. 10a in a view from above.

DETAILED DESCRIPTION OF THE INVENTION

[0084] FIGS. 1a to 4b show designs of furniture fittings 1 from the state of the art and not according to the invention without a regular arrangement 9 of elevations 10 and depressions 11. The regular arrangement 9 can be used in all available metal pieces 5 in order to improve the respective furniture fitting 1 in terms of stability, strength, weight, transport properties, acoustic properties and visual properties.

[0085] FIG. 1a shows a furniture fitting 1 in the form of a runner 33 with a plurality of embossings 16 and punchings 29, which have been introduced into a component 20. The furniture fitting 1 comprises four metal pieces 5 in the form of a connecting piece, which are formed by a bending procedure of a metal sheet 4.

[0086] FIG. 1b differs from FIG. 1a to the effect that the runner 33 is represented from a viewing direction from the side. The four metal pieces 5 have in each case two surfaces 7, 8, which are spaced apart from one another by a material thickness 6.

[0087] FIG. 2a shows an arrangement with a runner 33 of a drawer and with a drawer side wall 38 in a perspective view. Fastening portions 39, 40 of a first guide rail 41 have in each case one or more fastening points 42, 43 for fastening to a furniture carcass. A third guide rail 44 is connected or can be detachably connected to the drawer side wall 38, wherein a second guide rail 45 is movable between the first guide rail 41 and the third guide rail 44.

[0088] A coupling element 46, which can be detachably coupled to a follower 47 of a draw-in mechanism 48 mounted on the third guide rail 44, is arranged on the first guide rail 41, with the result that towards the end of the closing movement the third guide rail 44 is caught by the follower 47 and can be drawn into a closed end position by an energy storage means of the draw-in mechanism 48. Through a damping device 49, preferably with a hydraulic piston-cylinder unit, this spring-supported drawing-in movement of the third guide rail 44 can be damped as far as a closed end position.

[0089] The drawer side wall 38 is formed as a hollow-chamber profile with an inner profile wall 50 and an outer profile wall 51 spaced apart therefrom, wherein the drawer side wall 38 forms a channel 52 that is open at the bottom and extends in the longitudinal direction of the drawer side wall 38, and in which the third guide rail 44 can be arranged. The drawer side wall 38 furthermore has a first fastening mechanism 53 for connection to a rear wall, a second fastening mechanism 54 for connection to a front panel and a support 55 for supporting a drawer base.

[0090] FIG. 2b shows the first guide rail 41 with the fastening portions 39, 40 to be installed on the furniture carcass. The first guide rail 41 has a U-shaped or C-shaped portion in cross section, in which a carriage 56 and a further carriage 57 that is separate therefrom are displaceably mounted for guiding and supporting the second guide rail 45. The carriage 56 and the further carriage 57 are displaceably mounted in a common running surface 26. The carriage 56 has load-transmitting rolling elements 27, the axes of rotation of which are spaced apart from one another in the vertical direction and are thus arranged in running surfaces 26 separate from one another. The carriage 56 furthermore also has lateral supporting rollers 57 with axes of rotation running vertically in the installed position, wherein the lateral supporting rollers 57 are movable along a vertical connecting piece of the first guide rail 41 running in the longitudinal direction (L) on the one hand and on a vertically running connecting piece of the second guide rail 45 on the other hand. Through a tooth system 58 arranged or formed on the carriage 56, a movement of the carriage 56 can be synchronized, via a cog wheel, with a movement of a further carriage 56 which is displaceably mounted between the second guide rail 45 and the third guide rail 44.

[0091] FIG. 3a shows a furniture fitting 1 in the form of a component 20 formed as a flap fitting 34. Punchings 29 in the surfaces 7, 8 through the material thickness 5 are formed for receiving fastening means 30 and cylindrical, wherein it is possible to mount a hinge pin in the punchings 29.

[0092] FIG. 3b differs from FIG. 3a merely to the effect that the furniture fitting 1 is shown from the side. The flap fitting 34 has three metal pieces 5, onto which a regular arrangement 9 can be introduced.

[0093] FIG. 4a shows a furniture fitting 1—formed as a hinge 35—with punchings 29, which an adjustment element 31 of an adjustment device 32 releases, with the result that the adjustment element 31 can be actuated by means of a tool.

[0094] The furniture fitting 1 is formed to effect a movable mounting of a first furniture part on a second furniture part, wherein the furniture fitting 1 has metal pieces 5 manufactured from a metal sheet 4 which are formed in the form of connecting pieces.

[0095] FIG. 4b differs from FIG. 4a merely to the effect that the furniture fitting 1 is represented in a front view. It is conceivable to introduce a regular arrangement 9 into the three metal pieces 5 before or after a bending procedure of the metal sheet 4 of the furniture fitting 1, wherein the regular arrangement 9 is particularly preferably introduced before the bending procedure.

[0096] FIG. 5 shows a metal sheet 4 with two surfaces 7, 8 that are spaced apart from one another by a material thickness 6 of the metal sheet 4, wherein both surfaces 7, 8 have a (schematically represented) regular arrangement 9 of successive elevations 10 and depressions 11, wherein an elevation 10 on one of the two surfaces 7, 8 lies opposite a depression 11 on the other of the two surfaces 8, 7, and vice versa. The material thickness 6 of the metal sheet 4 is (not limitatively) chosen to be 0.5 mm.

[0097] A neutral axis 36 is drawn in schematically with a dashed line in the sense of a reference plane relative to the elevations 10 and depressions 11 (due to the introduction of the regular arrangement 9).

[0098] FIG. 6a shows a three-dimensional design of the regular arrangement 9, wherein the regular arrangement 9 extends in a first direction 12 and in a second direction 13 transverse to the first direction 12, with the result that arranged adjacent to a depression 11 in each case is a first elevation 10 in the first direction 12 and a second elevation 10 in the second direction 13.

[0099] In each case on a surface 7, 8, maxima 14 of the elevations 10 and depressions 11 of the regular arrangement 9 are arranged on imaginary lines which are arranged parallel to one another. The elevations 10 and depressions 11 of a first line are arranged offset by half a spacing 19 between two elevations 10 or depressions 11 compared with the elevations 10 and depressions 11 of a second line directly adjacent to the first line, as a result of which an enhancement of the bending rigidity is particularly favoured by a wave structure in two dimensions.

[0100] The elevations 10 and depressions 11 of the regular arrangement 9 are introduced due to a pressing-in of a pointed extension of a roller or a stamp, wherein a shape of the elevations 10 and depressions 11 is formed truncated-pyramid-like with a fillet radius depending on the material thickness 6. Generally speaking, the shape can also be formed pyramid-shaped, conical or frustoconical.

[0101] On both surfaces 7, 8 three adjacent elevations 10 have maxima 14 which are arranged in each case in a common plane 17, wherein a normal spacing 18 of these planes 17 is increased by the regular arrangement 9 compared with the material thickness 6. In this embodiment, an increase of 0.2 mm in the material thickness due to the elevations 10 and depressions 11 has been chosen.

[0102] Two elevations 10 and depressions 11 following one another directly on one of the two surfaces 7, 8 have a spacing 19 of 3.5 mm, which can however be adapted depending on the requirements of the furniture fitting 1.

[0103] FIG. 6b shows the surface structure of the regular arrangement 9, wherein a lower contour of the elevations 10 and depressions 11 is indicated with dashed lines, as a result of which it can be seen that the material thickness 6 of the metal sheet 4 is the same or constant over the entire area of the regular arrangement 9 (disregarding varying plastic deformations between the maxima 14 and edges of the elevations 10 and depressions 11).

[0104] Two elevations 10 and depressions 11 following one another directly have a spacing 19 on one of the two surfaces 7, 8, wherein the spacing 19 has been chosen to be five times as large as the normal spacing 18.

[0105] The planes 17 between the maxima of the elevations 10 and the maxima 14 of the depressions 11 have a normal spacing 18′, which is 0.2 times as large as the material thickness 6 of the metal sheet 4.

[0106] FIG. 7 shows the metal sheet 4 for producing the furniture fitting 1, wherein the regular arrangement 9 of successive elevations 10 and depressions 11 has a periodicity. The periodicity is formed in the form of a two-dimensional alternation of elevations 10 and depressions 11 (analogously to a sinusoidal wave structure).

[0107] Punchings 29 and/or embossings 16 can be performed before a bending procedure and/or after a bending procedure for forming the component 20.

[0108] FIG. 8 shows a runner 33, wherein in the detailed view it can be seen that the metal pieces 5 have embossings 16, which extend over a plurality of elevations 10 and depressions 11 of the regular arrangement 9.

[0109] Generally speaking, different metal pieces 5 can have different regular arrangements 9 with specific geometries. Varying regular arrangements 9 within a metal piece 5, which can differ for example in the periodicity, the spacing 19 and/or a normal spacing 18, 18′, are also conceivable. The regular arrangement 9 extends over 100% of the furniture fitting 1.

[0110] FIG. 9a shows that the metal pieces 5 are arranged on a profiled component 20 of the furniture fitting 1, wherein the component 20 is formed U-shaped in a cross section in areas. The regular arrangement 9 can be seen on both surfaces 7, 8 in the form of elevations 10 and depressions 11.

[0111] FIG. 9b differs from FIG. 9a merely to the effect that the runner 33 is represented in a view from above. The detail of a surface structure of the regular arrangement 9 shows that the metal pieces 5 have punching 29 and among other things are formed as a fastening means 30 for a furniture component.

[0112] FIG. 10a shows a metal sheet 4 with a regular arrangement 9, wherein the regular arrangement 9 extends over extensive local areas. Generally speaking, the local area can also be arranged only at an edge 22 of a metal piece 5 and/or at a connection point 23 of a metal piece 5, at which the metal piece 5 is connected or can be connected to a further component 24 of the furniture fitting 1.

[0113] In this embodiment, the metal sheet 4, which comprises the metal pieces 5 after a bending procedure, has two flat surfaces 25 which are free of regular arrangement 9.

[0114] An exemplary method sequence via which the furniture fitting 1 can be manufactured is indicated below: [0115] a flat metal sheet 4 without regular arrangement 9 is provided, [0116] at least one regular arrangement 9 of successive elevations 10 and depressions 11 is incorporated in the metal sheet 4 on the two surfaces 7, 8 that are spaced apart from one another by the material thickness 6 of the metal sheet 4, wherein an elevation 10 on one of the two surfaces 7, 8 lies opposite a depression 11 on the other of the two surfaces 7, 8, and vice versa, [0117] wherein the at least one regular arrangement 9 is incorporated into the metal sheet 4 by means of a stamp and/or two rollers starting from both surfaces 7, 8, wherein the neutral axis 36 of the metal sheet 4 is lengthened during the incorporation of the at least one regular arrangement 9 and the metal sheet is stretched in the area in which the at least one regular arrangement 9 is incorporated, and [0118] by bending, punching, cutting, coating and/or embossing steps the metal sheet 4 is formed into the component 20 of the furniture fitting 1 to be produced.

[0119] Generally speaking, the bending, punching, cutting, coating and/or embossing steps can be effected after the incorporation of the at least one regular arrangement 9 or following the incorporation.

[0120] In a further method step, an embossing 16 which extends over a plurality of elevations 10 or depressions 11 of the at least one regular arrangement 9 can be embossed into the metal sheet 4.

[0121] In this embodiment of the invention, two strip-shaped surfaces 25 of the metal sheet 4 have been left blank during the incorporation of the regular arrangement 9 in order to utilize the surface areas 25 as tracks for rolling elements 27.

[0122] In the case of a plurality of regular arrangements 9, the regular arrangements 9 differ from one another in terms of their geometry.

[0123] In a further method step the component 20 can be connected to further components, for example by gluing, riveting, TOX clinching, soldering and/or welding. Fitting with a drive device, a damper and/or the like is also possible in order to broaden the functionality of the furniture fitting 1.

[0124] FIG. 10b shows the furniture fitting 1 as a runner 33, wherein the metal pieces 5 have a first sound absorption in the area of the flat surface areas 25, and the metal pieces 5 have a second sound absorption in an area with the regular arrangement 9, wherein the second sound absorption is increased by 10% compared with the first sound absorption. Analogously, a second rigidity in the area of the regular arrangement 9 is increased by 10% compared with a first rigidity in the area without regular arrangement 9.

[0125] The two flat surfaces 25 are formed as running surfaces 26 for rolling elements 27 moving on the running surface 26 (cf. FIG. 2b), wherein the metal pieces 5 have a longitudinal direction 28 and the running surfaces 26 are formed as a track, which is aligned parallel to the longitudinal direction 28 of the metal pieces 5.

[0126] In the case of a piece of furniture with a first furniture part and a second furniture part, the furniture fitting 1, with which the first furniture part is movably mounted on the second furniture part, can be used.