Base for a drawer

Abstract

A base (1) for a drawer (2), wherein the drawer base (1) comprises at least one spacer (33), which is arranged on the drawer base (1), preferably by at least one fixing means (34), such that the at least one spacer (33) makes a first thickness (5) of the drawer base (1) - in the vertical direction (6) in the use state (7) of the drawer base (1) - in the region of at least two, in particular three or four, side areas (4) of the drawer base (1) greater than a second thickness (8) - in the vertical direction (6) in the use state (7) of the drawer base (1) - in a central region, preferably in the region of a centre point (9), of the drawer base (1), the second thickness (8) being smaller than 16 mm, preferably smaller than 12 mm, particularly preferably smaller than 8 mm.

Description

[0001] Drawer base for one drawer

[0002] The invention relates to a drawer base for a drawer. Furthermore, the invention relates to an arrangement of two drawer side walls for a drawer, each comprising a fastening device for connecting a drawer base to the drawer side wall, and to such a drawer base. Furthermore, the invention relates to a drawer with such an arrangement, a method for producing such a drawer base, and a method for assembling such an arrangement.

[0003] Typically, in the furniture sector, the drawer base must be defined based on the requirements profile—particularly load-bearing capacity for a given material selection—and the drawer side panel—particularly with regard to the support for the drawer base—based on the dimensions of the drawer base. This results in an undesirably broad range of types, both for varying drawer bases and for different drawer side panels.

[0004] A drawer base which differs from the drawer base conventional in the furniture industry is already known from the document WO 2012 / 122575 A1, wherein the drawer base has a lower base plate and an upper base plate with a reduced thickness of the drawer base in the region of a side surface for resting on a web of a drawer side wall.

[0005] A disadvantage of the prior art is that the resource expenditure - both for the necessary production lines and in terms of material requirements - is very high. EP 2 597 997 A1 discloses a drawer side wall which differs from that conventional in the furniture industry, wherein the fastening devices for the drawer base include tabs connected to the frame via webs in order to compensate for tolerances in drawer bases which are too thin. For a given drawer base, however, the dimensions of the tab must be specified which are specifically adapted to the thickness of the drawer base, which does not reduce the range of types, whereby the dimensions of the tab are limited by the sheet metal thickness of the drawer side wall.Furthermore, the tabs must be adapted in an additional manufacturing process step to the thickness of the drawer base, which may not yet be known at the time of production of the drawer side panel. In particular, flexible retrofitting cannot be guaranteed. Furthermore, the dimensions of the tabs must be precisely adapted to the thickness of the drawer base. This can lead to the risk of insufficient play compensation and undesirable deformation during the clamping process, which could complicate disassembly or make the drawer base impossible to recycle.

[0006] The objective technical task of the present invention is therefore to provide a drawer base which is improved compared to the prior art, as well as an arrangement, a drawer and a method for manufacturing or assembling, in which the disadvantages of the prior art are at least partially eliminated, and which are characterized in particular by a reduction in the resources required and the required

[0007] Draw from the spectrum of types.

[0008] This object is achieved by the features of claim 1. It is therefore provided according to the invention that the drawer base comprises at least one spacer which is arranged on the drawer base, preferably via at least one fixing means, in such a way that a first thickness of the drawer base in the vertical direction in the state of use of the drawer base is due to the at least one spacer in the region of at least two, in particular three or four, side surfaces of the drawer base in a central region, preferably in the region of a center point of the drawer base, wherein the second thickness is less than 16 mm, preferably less than 12 mm, particularly preferably less than 8 mm.

[0009] This makes it possible for the drawer base in the area of ​​the side surfaces, which are intended for connection to the drawer side wall, to be adjusted to the dimensions of existing types with a specific internal distance from fastening devices using at least one spacer. This means that existing drawer side walls, for example, can be retrofitted with drawer bases which require less material to manufacture. The underlining allows drawer bases to be continuously adapted to any drawer side wall by constant thickening and flexibly adjustable using varying spacers, whereby conventional - possibly oversized - material thicknesses of 16 mm can be optimized as a second thickness to suit the respective requirements.

[0010] For example, the drawer base can be delivered as a set made of a plate-like material or the previous drawer base together with at least one spacer in order to carry out the assembly of the drawer base on site. The at least one spacer can, for example, have the dual function of edge protection for the plate-like material of the drawer base in the transport position. Conventional drawer base thicknesses of 16 mm first and second thickness can be used variably where the drawer base has to withstand a high degree of stress, whereby a smaller second thickness can be used for other requirements - without having to provide a new drawer side wall or having to replace the drawer side wall. The drawer base is particularly preferably provided for containers such as drawers with at least one side wall and / or rear wall and / or front wall.

[0011] Although the at least one spacer is a component of the drawer base to be arranged on the drawer side wall, the at least one spacer does not have to be connected to a plate-like material of the drawer base by means of a fixing means, whereby a non-detachable connection or a connection that can be released using tools is not mandatory. For example, the at least one spacer - preferably as a clamping means - can rest on the plate-like material of the drawer base during the assembly process of the drawer or vice versa. For example, the at least one spacer (or the plate-like material) can be arranged at least in regions in a fastening device of the drawer side wall and then the plate-like material (or the at least one spacer) can be arranged at least in regions within the fastening device below or above the at least one spacer.

[0012] Another positive feature is that less material can be used for the drawer base, with the second thickness being able to be optimized in the center point area. For example, a usual second thickness of 16mm for fastening devices on drawer side panels with an inside distance of 16mm can be achieved by a second thickness of just 8mm and a fold as a spacer in the area of ​​the side surface to the previous 16mm. In addition, by means of a further (alternating) fold in the area of ​​the side surface, the drawer base can be used with inside distances of 24mm. The inside distance of 24mm can be taken into account in a similar way by folding a drawer base with a material thickness of 12mm. This can save costs and material.

[0013] On the other hand, increasing the first thickness in the area of ​​the side surface can ensure a more stable and secure attachment to the drawer side panel. In general, any deficiencies in the hardness or strength of the drawer base in the center area (without adjusting the connection point to the drawer side panel) can be compensated for, for example, by a decorative layer with different material characteristics or by bracing / reinforcements.

[0014] The second thickness can therefore be individually adjusted to the requirements of the drawer and the first thickness can be variably adjusted by dimensioning the spacers or a number of folds (generally a multiple of the material thickness). For example, adhesives (such as glue), screws or plug-in connections (such as dowels) of drawer base segments of any thickness - particularly in the area of ​​the side surfaces - can be provided as fixing means, whereby the edge thickness of the drawer base can be increased in constant or continuous steps by the material pieces. The advantage here is that the material pieces can have a material thickness that differs from the (folded) drawer base, so that the first thickness is generally not restricted to a multiple of the second thickness.Furthermore, the drawer base can be stacked particularly efficiently for transport purposes, reducing both the transport weight and the required transport storage space due to the compact transport position compared to conventional drawer bases. Furthermore, packaging and assembly are simplified, and the drawer base offers both economic and ecological advantages over state-of-the-art solutions.

[0015] Furthermore, the range of types can be reduced particularly advantageously with regard to the drawer side walls, whereby, for example, only one type of drawer side wall is necessary in order to be able to cover different load spectra or drawer weight classes.

[0016] In terms of fixation, a sufficiently strong connection to the drawer side wall can be ensured despite the thin material thickness in the center area. The drawer bottom can generally be attached in any way, including screw connections, plastic deformation (such as collaring, clinching, toxing, or the like), etc.

[0017] The drawer bottom is preferably made of wood or wood, although other materials—such as plastic or similar materials—can generally also be used. The drawer bottom can have various coatings or applied / bonded layers, although these are not mandatory.

[0018] The area of ​​the side surface can be defined, for example, by the material thickness and is preferably essentially twice the material thickness. The relative difference in thickness between an edge area or peripheral area and a center of the drawer base in the use state of a position installed in the drawer can be regarded as relevant, whereby the center point can be defined by symmetricals of the drawer base. In general, it is sufficient for the central area to be closer to the center of gravity of the drawer base than the peripheral area or for the area of ​​the side surface to be closer to an outer front contour of the drawer base than the central area. For stability reasons, a brace or thickened portion can be provided in the center point, whereby the first thickness can be defined as the material thickness of the drawer base without the brace or thickened portion or in the adjacent area.

[0019] As stated at the outset, protection is also sought for an arrangement of two drawer side walls for a drawer, preferably U-shaped and / or metallic frames, each comprising a preferably U-shaped fastening device for connecting a drawer base to the drawer side wall and such a drawer base which is arranged at least partially within the fastening devices.

[0020] The fastening devices can be constituted, for example, by the drawer side wall itself or the frame as such (for example via a profiling) or by a furniture fitting arranged on the drawer side wall (or at least partially integrated).

[0021] An internal distance of 16 mm has been established as the standard vertical internal distance for fastening devices for drawers. A second thickness of 8 mm with a first thickness of 16 mm has shown sufficient stability. The drawer base according to the invention enables conventional drawer side walls to be equipped with a large number of different drawer bases. Drawer bases with a second thickness of 13 mm are also common, with the internal distance essentially corresponding to the 13 mm of the drawer base. A second thickness is preferably a maximum of 10 mm or 8 mm, with a spacer being able to be 3 mm or 5 mm, for example, in order to be used with such a fastening device. Second thicknesses of a maximum of 5 mm are also possible.According to the invention, for example, in addition to the advantage of retrofitting, the stability of a 13 mm drawer base can be increased with a spacer for a 16 mm fastening device, and material can be generated for a 16 mm fastening device by reducing the second thickness. Particularly preferably, the second thickness is substantially 13 mm, substantially 10 mm, or substantially 5 mm.

[0022] As stated at the outset, protection is also sought for a method for producing such a drawer base, wherein the following method steps are carried out: A plate-shaped starting material is provided and the at least one spacer is arranged in the region of at least two side surfaces of the drawer base, so that the drawer base becomes thicker in the region of the at least two side surfaces compared to a central region.

[0023] Manufacturing processes for drawer bottoms are also conceivable which feature an increase in the material thickness in the edge area on only one side, for example, in order to be able to reduce the range of types of drawer fronts or drawer backs. In general, increases in thickness in the peripheral area of ​​different side surfaces can vary, for example, in order to be able to combine different types of drawer side walls, drawer fronts, or drawer backs. As stated at the beginning, protection is also sought for a method for assembling such an arrangement, wherein the following process steps are carried out:

[0024] - the drawer bottom is provided, preferably by such a method for producing the drawer bottom

[0025] - the two drawer side walls are each provided with a fastening device

[0026] - the drawer base is arranged at least partially within the fastening devices

[0027] Advantageous embodiments of the invention are defined in the dependent claims.

[0028] It is particularly preferred that the at least one spacer

[0029] - is made of wood-like, plastic-like or metal-like material and / or

[0030] - is designed like a strip and / or

[0031] - is designed separately from the drawer base and / or

[0032] - has a substantially cuboid shape or a U-shape or an L-shape or a T-shape or an X-shape and / or

[0033] - has at least one bevel on a surface facing or rejecting the drawer bottom and / or

[0034] - hollow, preferably with at least one stiffening strut, and / or

[0035] - is an injection-molded part or is machined and / or

[0036] - has a third thickness, wherein the third thickness is at least one third, preferably at least one half, particularly preferably at least the

[0037] Material thickness , the second thickness is .

[0038] It is preferably provided that the at least one spacer is in the form of at least two folds, with which the drawer base can be or is transferred from a transport state into a use state, such that in the region of at least two, in particular three or four, side surfaces of the drawer base in the use state of the drawer base, the first thickness in the vertical direction in the use state of the drawer base is greater than the second thickness in the vertical direction in the use state of the drawer base in the central region, preferably in the region of the center point, of the drawer base.

[0039] The use state is defined by the folded position, via which the drawer base can be mounted to a drawer side wall. An unfolded position (generally essentially a flat plate) can be defined as the transport state. If the folds are fixed to the drawer base, the drawer base has been converted from the transport state into the use state. If the folds are unfolded or foldable, the transport state can be converted into the use state. This can achieve a particularly favorable transport position.

[0040] According to an advantageous embodiment of the invention, the at least two folds are designed as 180° folds or as 90° folds, wherein preferably a plurality of alternating 180° folds is provided per side surface and / or the at least two folds are fixed to one another or to the drawer base by means of an adhesive connection. A 180° fold can ensure a particularly secure connection to the drawer side wall. Using a 90° fold, a single fold can, on the one hand, generate a large increase in the first thickness compared to the second thickness and, on the other hand, achieve constant or continuous first thicknesses - regardless of the material thickness of the drawer base.

[0041] The adhesive bond prevents unwanted unfolding of the layers and also effectively inhibits play between layers.

[0042] Advantageously, it is provided that the at least two folds are designed as, preferably hinge-free, articulated connections in the form of a film hinge, preferably an adhesive hinge or adhesive layer, particularly preferably a hot melt adhesive or PU-based hot melt adhesive, and / or in the form of a flexible layer, preferably an elastic film, and / or in the form of a residual material of the drawer base formed by a milled recess or cutout in the drawer base, wherein it is preferably provided that at least one articulated connection is arranged on the outside on the side surface of the drawer base or between layers of the drawer base formed by the fold.

[0043] The term "hingeless" in this context means that no mechanical component such as a metallic hinge is required, but the articulated connection can be generated by the layer structure itself - via the film hinge or the flexible layer or the milled recess as an articulated connection.

[0044] With multiple folds, one of the hinged connections can also be oriented toward the center point. With a 90° fold, the hinged connection can also be designed transversely—in particular, at 45° away from the drawer bottom.

[0045] It has proven advantageous that the drawer base has a projection or a bevel or a groove in the area of ​​the at least two folds, on which the articulated connection is arranged at least in part.

[0046] This makes it possible to create folds with the desired relative alignment of drawer base segments. It is also possible to ensure that the drawer base layers lie flat against one another, particularly in the use position. Alternatively or additionally, projections, chamfers, or grooves can be used to securely connect or wedge the layers together, for example, using special fixing devices such as sliding blocks.

[0047] According to an advantageous embodiment of the invention, it is provided that the first thickness in a drawer bottom plane, starting from the side surface in the direction of the center of the drawer bottom, is at most over 15%, preferably at most over 10%, particularly preferably at most over 5%, of a width of the drawer bottom and / or at most over 10 cm, preferably at most over 5 cm, particularly preferably at most over

[0048] 2cm, extends away.

[0049] The extension of the layers generated by the spacer towards the center point is generally arbitrary, whereby shorter lengths of the layers save a greater amount of material, and larger lengths generate a secure connection to the drawer side wall. For example, the width of the drawer base can be between 400mm and 800mm, whereby widths are usually adapted to internal dimensions of 600mm of a furniture body. The spacer can generally be produced in one piece (over several

[0050] side surfaces) or in several pieces (related to one side surface).

[0051] The spacer can be, for example, a metal angle or a wooden strip, wherein the drawer bottom is preferably made of a hardboard or a chipboard or of wood.

[0052] Preferably, the increase in the first thickness compared to the second thickness is locally limited exclusively to the edge region - in the region of the side surface - wherein, for example, a folding of the drawer base up to the middle region or over an extension approximately at a height of the drawer side wall preferably does not correspond to the edge region of the drawer base.

[0053] An advantageous variant of the present invention is that the drawer base comprises a carrier layer and a decorative layer, preferably arranged and / or glued on in some areas, and / or an adhesive layer or film layer, preferably arranged in some areas.

[0054] The material thickness or the second thickness of the drawer base generally does not include any decorative layer, adhesive layer, or film layer, which may be present; these can be considered separate components. The thicknesses of these layers (particularly to facilitate the hingeless, articulated connection) are preferably several times thinner than the material thickness of the drawer base.

[0055] The decorative layer can create an aesthetically pleasing appearance in the interior of a drawer. The decorative layer can also impart different material characteristics to the drawer base, such as hardness or strength, in order to achieve a

[0056] To increase the service life of the drawer.

[0057] It is particularly preferred that the first thickness is substantially 100%, preferably 200% or 300%, greater than the second thickness and / or the first thickness is between 10mm and 30mm, preferably between 15mm and 20mm, and / or the second thickness is between 5mm and 16mm, preferably between 8mm and 12mm.

[0058] However, particularly in the case of 90° folds or glued-on pieces of material, thickness increases of less than 100% or, for example, between 100% and 200% are also possible.

[0059] A spacer can generally provide an increase in the second thickness by 3mm or 5mm or between 30% and 60% of the material thickness.

[0060] In one embodiment of the invention, it is provided that the at least one spacer or at least one of the at least two folds that may be present, preferably in the case of two folds or spacers of adjacent side surfaces that are present adjacently in the region of a corner edge of the drawer base, extends only partially over one side surface of the drawer base.

[0061] This can prevent a collision of spacers (such as folds) in use or with other components such as a furniture fitting, a coupling device for a guide device, etc.

[0062] According to a preferred embodiment of the invention, it is provided that the first thickness is adapted via the at least one spacer in such a way as to correspond to the drawer side walls that the drawer bottom essentially corresponds to a vertically oriented internal distance of the fastening devices in the state of use of the arrangement.

[0063] The term "essential" is to be interpreted as encompassing an excess for a force-locking or form-locking connection (e.g., due to barbs for fixation) or a clearance for user-friendly installation on the drawer side wall (e.g., compensable by fasteners or plastic deformation). Preferably, an excess or clearance amounts to a maximum of 10% or 5% of the material thickness of the drawer base at the center point.

[0064] The fastening device preferably comprises a support web for the at least one spacer and a stop, preferably oriented substantially parallel to the support web and / or spatially spaced from the support web in the vertical direction, arranged vertically above the support web in the use state for securing the drawer base in the vertical direction. The internal distance can be defined as the vertical spacing between the support web and the stop.

[0065] Furthermore, it is preferably provided that a drawer front and / or a drawer rear wall is provided which comprises a preferably U-shaped, further fastening device and the drawer base is arranged at least in some areas within the further fastening device.

[0066] As a result, the drawer bottom can be secured and supported particularly favorably in all spatial degrees of freedom when the arrangement is in use. In a further embodiment, it can be provided that the drawer bottom is fixed to the drawer side walls by at least one fastening means and / or is connected to the drawer side walls in a force-fitting and / or form-fitting manner by at least one plastic deformation, wherein it is preferably provided that the at least one fastening means and / or the at least one plastic deformation

[0067] - at least one layer of the drawer base formed by the at least one spacer or the fold, if present, partially or completely penetrates and / or

[0068] - presses the drawer base against one of the two fastening devices, particularly preferably in the vertical direction when the arrangement is in use, and / or

[0069] - in the vertical direction, in the state of use of the arrangement, is arranged completely laterally next to the layer formed by the at least one spacer or the fold that may be present.

[0070] As a result, undesired slipping of the drawer base in the arrangement can be prevented by means of local securing by pressing via the at least one fastening means or by at least one plastic deformation.

[0071] It is particularly preferably provided that the at least one spacer can be latched into the fastening devices, preferably by elastic deformation and / or positively locking, and / or can be clamped into the fastening devices, preferably force-locking, and / or the drawer side walls have at least one holding device, preferably pivotable relative to the fastening devices and / or detachably arranged or arrangeable on the fastening devices, with which the at least one spacer can be secured within the fastening devices.

[0072] This effectively prevents the drawer base from slipping or falling out relative to the drawer side walls. The retaining device can, for example, be in the form of a dowel partially inserted into the drawer base or in the form of a (flexible or pivoting) hook that can be inserted or pressed onto the drawer base or the drawer side wall.

[0073] Preferably, it is provided that

[0074] - the drawer base is provided by machining from a plate-shaped starting material, the drawer base is articulated by a film hinge or a flexible layer or a milled recess and the drawer base is folded via the articulated connection to a multiple of its material thickness in the area of ​​the center point or

[0075] - a plate-shaped starting material is provided with a film hinge or a flexible layer, the plate-shaped starting material is machined in some areas, in particular up to the film hinge or the flexible layer, to form the articulated connection and the drawer base, and the drawer base is folded to a multiple of its material thickness in the area of ​​the center point.

[0076] According to an advantageous embodiment of the invention, it is provided that in a preparatory method step, preferably computer-assisted, the first thickness is adapted to an internal distance of the fastening devices and / or an internal distance of the fastening devices is adapted to the first thickness and / or the second thickness is adapted to a minimum load threshold value and / or a

[0077] Maximum load threshold is adjusted.

[0078] For example, the dimensioning of the drawer base via the folds can be individually adapted to the dimensioning of the drawer side wall and flexibly to boundary conditions such as a minimum weight, which can be absorbed in the center by the strength of the drawer base in the drawer in any case (without significant elastic deformation) (minimum load threshold value), or a maximum weight, which can be absorbed in the center by the stability of the drawer base in the drawer without breakage (maximum load threshold value).

[0079] With a defined second thickness, the first thickness can be varied by the number of folds or the type of fold; with a given first thickness, the second thickness can be changed by the material thickness. For example, the ideal configuration can be selected using templates on a computer or by a computer-implemented algorithm by a processing unit.

[0080] Further details and advantages of the present invention are explained in more detail below with reference to the description of the figures and the exemplary embodiments shown in the drawings.

[0081] Fig. 1a, 1b a piece of furniture with drawers comprising a drawer bottom and an arrangement according to a preferred embodiment in perspective views with an insulated drawer,

[0082] Fig. 2 shows the drawer according to the embodiment of Fig. 1b in a perspective view with a view of an underside of the drawer bottom with an enlarged detail,

[0083] Fig. 3a-3d a drawer with preferred embodiments of a drawer bottom in sectional view and with enlarged detailed views in the area of ​​the connection between the drawer bottom and the drawer side wall,

[0084] Fig. 4a-4c show the drawer base according to the embodiment shown in Fig. 3a in perspective views and in exploded view,

[0085] Fig. 5a-5d preferred embodiments of spacers for a drawer bottom in perspective view with enlarged detail representations,

[0086] Fig. 6a-6c show a further preferred embodiment of a drawer bottom with folds as spacers in two perspective views viewed from above and below, as well as in two orthogonal views with an enlarged detail in the area of ​​the folds,

[0087] Fig . 7a-7d enlarged detail sections of further preferred embodiments of drawer bottoms in sectional view with varying

[0088] From examples of articulated connections of the drawer base for use in a piece of furniture according to Fig. 1a.

[0089] Fig. 1a shows a piece of furniture with a plurality of drawers 2. The drawers 2 are movable relative to a furniture body via a guide device. Each drawer 2 has a drawer bottom

[0090] 1 , whereby the drawer base 1 can generally also be used for other containers .

[0091] Fig. 1b shows a drawer 2 in isolation, where the drawer

[0092] 2 comprises an arrangement of two drawer side walls 25 for the drawer 2 in the form of U-shaped and metallic frames. The drawer 2 comprises a drawer front 28 and a

[0093] Drawer back panel 29 .

[0094] Fig. 2 differs from Fig. 1b only in that the drawer 2 is shown viewed from the underside of the drawer base 1. The drawer side walls 25 comprise coupling devices for connection to the guide device, wherein in general the drawer side walls 25 can comprise container rails for supporting the drawer base 1 and / or for connection to drawer rails of the guide device or can be designed without container rails, wherein the drawer base 1 can be arranged in profiles of the drawer side walls 25 and / or a coupling to the drawer rails can be effected via a furniture fitting (which can be inserted into the drawer side wall 25).

[0095] The drawer side walls 25 comprise openings for inserting fastening means 31, although this is not absolutely necessary, and for example an opening can be made during a fixing process step of the drawer base 1 to the drawer side wall 25.

[0096] The drawer side walls 25 each comprise a U-shaped fastening device 26 (cf. Fig. 9a) for connecting the drawer bottom 1 to the drawer side wall 25, wherein the drawer bottom 1 is arranged within the fastening device 26.

[0097] The drawer front 28 and the drawer rear wall 29 each comprise a U-shaped additional fastening device 30, with the drawer bottom 1 being arranged within the additional fastening devices 30. However, the additional fastening devices are generally not mandatory.

[0098] Fig. 3a shows a drawer 2 in a sectional view, wherein in the enlarged detailed section in the area of ​​the connection of the drawer base 1 to a drawer side wall 25 it can be seen that the drawer base 1 comprises a spacer 33 which is arranged on the drawer base 1 via a fixing means 34 in the form of a glue or adhesive bond. A further spacer 33 is arranged in mirror symmetry on the opposite side of the drawer base 1, wherein in general at least one further spacer 33 can be provided on the adjacent side surfaces 4.

[0099] The dotted line indicates that it can be provided that the spacer 33 can be snapped into the fastening device 36 by elastic deformation and in a form-fitting manner. For this purpose, the drawer side wall 25 can have one (preferably two or three) holding device 37 which can be pivoted relative to the fastening device 26 or detachably arranged on the fastening device 26 and with which the spacer 33 can be secured within the fastening device 26. In this embodiment, the holding device 37 is formed by an inclined plane for snapping and securing the spacer 33. Alternatively or additionally, the spacer 33 can be clamped in a force-fitting manner in the fastening device 36 if the holding device 37 in the form of the inclined plane extends, for example, into the area of ​​the positioning of the

[0100] Spacer 33 is sufficient.

[0101] The spacer 33 is arranged on the drawer base 1 in such a way that a first thickness 5 of the drawer base 1 in the vertical direction 6 in the state of use 7 of the drawer base 1 by the spacer 33 in the region of the side surface 4 of the drawer base 1 is greater than a second thickness 8 in the vertical

[0102] Direction 6 in the state of use 7 of the drawer base 1 in a central area in the area of ​​a center point 9 of the drawer base 1.

[0103] The second thickness 8 is less than the usual 16mm of standard drawer bottom designs, whereby the second thickness 8 can be reduced to less than 8mm, for example.

[0104] In the case of two spacers 33 or one spacer 33 which extends over at least two side surfaces 4, the thickening or underlining of the drawer base 1 takes place in the region of the connection to the drawer side wall 25 over at least two side surfaces 4 of the drawer base 1.

[0105] In this exemplary embodiment, the drawer base 1 is precisely adapted to an internal distance 27 of the fastening device 26. Generally, a certain amount of play (compensable via fastening means 31) can be provided for easier assembly. It is also conceivable to provide a (slight) oversize to ensure a secure fit.

[0106] The spacer 33 is designed as a wooden strip with a cuboid shape and is formed separately from the plate-shaped material of the drawer bottom 1.

[0107] Figs. 3b, 3c and 3d differ from Fig. 3a only in that different spacers 33 are provided in the region of the side surface 4 of the drawer base 1 for connection to the drawer side wall 25. Features - such as geometry or material - of one of the spacers 33 can be provided alternatively or additionally in other spacers 33. The spacer 33 in Fig. 3b is made of metal and has a U-shape. Other geometries such as T-shape or X-shape are generally possible.

[0108] The spacer 33 in Fig . 3c is formed from a wood-like material by machining and has a chamfer 35 on the surface facing away from the drawer bottom 1 , which chamfer can generally be provided on the side facing the drawer bottom 1 .

[0109] The spacer 33 in Fig. 3d is formed as an injection-molded part made of plastic, comprises an L-shape and is hollow with a plurality of stiffening struts 36.

[0110] A third thickness 38 of the spacer 33 is greater than the material thickness 32 of the second thickness 8, wherein the third thickness 38 of the spacer 33 can also be less than the material thickness 32.

[0111] Fig. 4a shows spacers 33 which extend partially over side surfaces 4, wherein in general spacers 33 can also be provided which extend over the entire extent of the side surface 4.

[0112] Fig. 4b shows four spacers 33 prior to attachment to the plate-like material of the drawer base 1 by means of fixing means 34 in the form of screws. In general, the fixing means 34 can be provided with a dual function as fixing means 31 for connecting the drawer base 1 to the drawer side wall 25. The drill holes of the spacers for the fixing means 34 are not absolutely necessary. Fig. 4c differs from Fig. 4b only in that the drawer base 1 is illustrated from an underside in the assembled state.

[0113] Fig. 5a, 5b, 5c and 5d show the spacers 33 according to Fig. 3a to 3d in a perspective view with an enlarged detail to illustrate the geometry, wherein the respective spacer 33 can be snapped into the fastening devices 36 by elastic deformation or positively or can be clamped into the fastening devices 36 by force or can be secured via a holding device 37 of the drawer side wall 25 or the drawer bottom 1.

[0114] A method for producing the drawer bottom 1 by means of a spacer can be determined by providing a plate-shaped starting material and arranging a spacer 33 in the region of at least two side surfaces 4 of the drawer bottom 1, so that the drawer bottom 1 becomes thicker in the region of the at least two side surfaces 4 compared to a central region.

[0115] The following figures are shown using folds 3 as spacers 33, wherein the folds 3 can generally be replaced, for example, by a spacer 33 according to Fig. 5a-5d.

[0116] Fig. 6a shows the drawer base 1 of the drawer 2 in isolation, looking towards an upper side of the drawer base 1. The drawer base 1 comprises two folds 3 as spacers 33 on each of the four side surfaces 4, so that in the area of ​​the side surfaces 4 of the drawer base 1, a first thickness 5 in the vertical direction 6 in the use state 7 of the drawer base 1 is greater than a second thickness 8 in the vertical direction 6 in the use state 7 of the drawer base 1 in the central area (in the area of ​​the center point 9) of the drawer base 1. The number of folds 3 per side surface 4 is generally arbitrary. In general, folds 3 can also be arranged on just two opposite side surfaces 4.

[0117] Below are four schematic illustrations of possible sections of the drawer base 1 :

[0118] On the left, the drawer base 1 has a carrier layer 20 and a decorative layer 21, which can generally be arranged in regions between the drawer side walls 25 and can be securely located on the drawer base 1, for example by adhesive bonding. A decorative layer 21 that completely covers the carrier layer 21 on one side is also possible, wherein the decorative layer 21 can be folded together with the carrier layer 21. As a separate material layer, the decorative layer 21 does not relate to the second thickness 8 with a lateral extension of a material thickness 32. However, the decorative layer 21 is not absolutely necessary.

[0119] Applied to the center left of the drawer base 1 is a film layer 23, which functions as an articulated connection 13 in the form of a flexible layer 15. The flexible layer 15 can, for example, be in the form of an elastic film.

[0120] An adhesive layer 22 is arranged in the center right corner of the drawer base 1, which acts as an articulated connection 13 in the form of a film hinge 14. The film hinge 14 can be present, for example, as an adhesive hinge or as an adhesive layer—preferably as a PU-based hot melt adhesive.

[0121] On the right, the drawer base 1 has an articulated connection 13 provided via a milled recess 16 and as residual material 17. Alternatively or in addition to the milled recess 16, a recess can be provided in the drawer base 1. The four schematic embodiments of layer structures of the drawer base 1 can be used alternatively or in addition to generate the at least two folds 3 of the carrier layer 21.

[0122] An exemplary method for producing the drawer base 1 can be explained as follows: The drawer base 1 is provided by machining from a plate-shaped starting material, the drawer base 1 is articulated by the film hinge 14 or the flexible layer 15 or the milled recess 16, and the drawer base 1 is folded via the articulated connection 13 to a multiple of its material thickness 32 in the region of the center point 9. If the film hinge 14 or the flexible layer 15 is used, segments of the drawer base 1 can be subsequently articulated to form the foldable drawer base 1.

[0123] Alternatively or additionally, a plate-shaped starting material can be provided with a film hinge 14 or a flexible layer 15, the plate-shaped starting material can be machined in certain areas, in particular up to the film hinge 14 or the flexible layer 15, to form the articulated connection 13 and the drawer base 1, and the drawer base 1 can be folded to a multiple of its material thickness 32 in the region of the center point 9. In this case, the articulated connection is generated by the machining process step - for example sawing or milling. If leftover material 17 is used for the articulated connection 13, the film hinge 14 or the flexible layer 15 can be dispensed with.

[0124] In Fig. 6b, it can be seen that an articulated connection 13 is arranged on the outside of the side surface 4 of the drawer base 1, and another articulated connection 13 is arranged oriented toward the center point 9. Alternatively or additionally, it is possible to arrange the articulated connection between the layers 18 formed by the fold 3.

[0125] The folds 3 are designed as 180 ° folds 10 , with two alternating 180 ° folds 10 being provided per side surface 4 .

[0126] In general, a fold 3 can be fixed to the drawer bottom 1 or a fold 3 to an adjacent fold 3 via an adhesive connection.

[0127] In the area of ​​a corner edge 24, the second thickness 8 is equal to the first thickness 5, since there is a recess in the folds 3 in the corner area. The two adjacent folds 3 of adjacent side surfaces 4 extend only partially beyond the side surfaces 4. In general, this situation can be provided for only one side surface 4 or also for folds 3 of opposite side surfaces 4.

[0128] Fig. 6c shows the drawer base 1 in an enlarged sectional view, wherein two folds 3 are provided on the side surface 4, so that three layers 18 of the drawer base 1 are formed.

[0129] It can generally be provided that the drawer base 1 has a projection or a bevel or a groove in the region of a fold 3, on which / on which the articulated connection 13 is arranged partially or completely.

[0130] In a drawer base plane 19, the first thickness 5 extends from the side surface 4 toward the center point 9 of the drawer base 1 between 2% and 15% and over a maximum of 5 cm. The first thickness 5 is—apart from a slight spacing generated by the articulated connection—200% greater than the second thickness 8, since the material thickness 32 of the drawer base 1 is folded twice at the center point 9.

[0131] In this embodiment, the first thickness 5 is 24 mm and / or the second thickness 8 is 8 mm.

[0132] Fig. 7a shows the drawer 2 with the drawer base 1 in the assembled state according to Fig. 3c in a sectional view, wherein the first thickness 5 is adapted via the folds 3 in such a way as to correspond to the drawer side walls 25 that the drawer base 1 essentially corresponds to an internal distance 27 of the fastening devices 26 which is vertically oriented in the use state 7 of the arrangement.

[0133] There may be a clearance (for example, a maximum of 10% or 5% of the internal distance 27) between the internal distance 27 and the first thickness 5, which facilitates assembly of the drawer base 1 on the drawer side wall 25 and can be compensated for by a fastening means 31. The internal distance 27 can be regarded as the minimum spacing between opposing contours of the fastening device 26.

[0134] Fig. 7b differs from Fig. 7a only in that the cutting line is guided through a fastening means 31 for securely fixing the drawer base 1 to the drawer side wall 35. The drawer base 1 is fixed to the drawer side walls 25 via the fastening means 31 (the number is generally arbitrary and can be predefined depending on the load-bearing requirements of the drawer 2). Alternatively or in addition to the fastening means 31, plastic deformation (for example a collar or pressing of metal material of the drawer side wall 25 into wooden material of the drawer base 1) can be used for a force-fitting or form-fitting connection of the drawer base 1 to the drawer side walls 25.

[0135] The fastening means 31 completely penetrates two of the three layers 18 of the drawer base 1 formed by the fold 3 and partially penetrates the third layer 18. In general, the uppermost layer 18 in the vertical direction 6 can be pressed against the fastening device 26 by the fastening means. In the use state 7, pressing can be effected upwards in the vertical direction 6 or downwards by tensile forces in the vertical direction 6 (see Fig. 7d).

[0136] Fig. 7c shows an exemplary embodiment of an arrangement with a drawer base 1 comprising a 90° fold 11—ensured by the articulated connection 13. A front edge of the side surface 4 can be used for support on the fastening device 26.

[0137] The fastening means 31 is arranged in the vertical direction 6 in the use state 7 of the arrangement completely laterally next to the layer 18 formed by the fold 3.

[0138] Fig. 7d shows an arrangement with a drawer base 1 which is simply folded on the side surface 4, wherein the fold 3 creates two layers 18 which are securely connected to the fastening device 26 via the fastening means 31.

[0139] An exemplary method for assembling the arrangement can be carried out as follows: The drawer bottom 1 is provided via a method for producing the drawer bottom 1, the two drawer side walls 25 are each provided with a fastening device 26 during the manufacturing process and the drawer bottom 1 is then arranged within the fastening devices 26.

[0140] The drawer base 1 can be secured within the fastening device 26 by the fastening means 31. Alternatively or additionally, a fixation can be ensured by a frictional or positive connection between the drawer base 1 and the fastening device 26, wherein the fastening device 26 can, for example, have a geometry that tapers towards the drawer base 1. A shape that tapers towards the center point 9 of the drawer base 1 can also promote pressing the drawer base 1 against the drawer side wall 25.

[0141] In a preparatory method step, the first thickness 5 can be adapted to an internal distance 27 of the fastening devices 26, for example via an algorithm of a computing unit, or an internal distance 27 of the fastening devices 26 can be adapted to the first thickness 5, or the second thickness 8 can be adapted to a minimum load threshold value or a maximum load threshold value.

Claims

Patent claims 1. Drawer base (1) for a drawer (2), characterized in that the drawer base (1) comprises at least one spacer (33) which, preferably via at least one fixing means (34), is arranged on the drawer base (1) in such a way that a first thickness (5) of the drawer base (1) in the vertical direction (6) in the use state (7) of the drawer base (1) by the at least one spacer (33) in the region of at least two, in particular three or four, side surfaces (4) of the drawer base (1) is greater than a second thickness (8) in the vertical direction (6) in the use state (7) of the drawer base (1) in a central region, preferably in the region of a center point (9), of the drawer base (1), wherein the second thickness (8) is less than 16 mm, preferably less than 12 mm, particularly preferably less than 8 mm.

2. Drawer base (1) according to claim 1, wherein the at least one spacer (33) - is made of wood-like, plastic-like or metal-like material and / or - is designed like a strip and / or - is designed separately from the drawer base (1) and / or - has a substantially cuboid shape or a U-shape or an L-shape or a T-shape or an X-shape and / or - has at least one bevel (35) on a surface facing or averting the drawer base (1) and / or - hollow, preferably with at least one stiffening strut (36) and / or - is an injection-molded part or is machined and / or - has a third thickness (38), wherein the third thickness (38) is at least one third, preferably at least one half, particularly preferably at least the material thickness (32), of the second thickness (8).

3. Drawer base (1) according to claim 1 or 2, wherein the at least one spacer is in the form of at least two folds (3) of the drawer base (1), with which the drawer base (1) can be or is transferred from a transport state into a use state (7) such that in the region of at least two, in particular three or four, side surfaces (4) of the drawer base (1) in the use state (7) of the drawer base (1), the first thickness (5) in the vertical direction (6) in the use state (7) of the drawer base (1) is greater than the second thickness (8) in the vertical direction (6) in the use state (7) of the drawer base (1) in the central region, preferably in the region of the center point (9), of the drawer base (1).

4. Drawer base (1) according to claim 3, wherein the at least two folds (3) are designed as 180° folds (10) or as 90° folds (11), wherein preferably a plurality of alternating 180° folds (10) are provided per side surface (4) and / or the at least two folds (3) are fixed to one another or to the drawer base (1) via an adhesive connection.

5. Drawer base (1) according to claim 3 or 4, wherein the at least two folds (3) are designed as, preferably hingeless, articulated connections (13) in the form of a film hinge (14), preferably adhesive hinge or adhesive layer, particularly preferably hot melt adhesive or PU-based Hot melt adhesive, and / or in the form of a flexible layer (15), preferably elastic film, and / or in the form of a residual material (17) of the drawer base (1) formed by a milled recess (16) or recess in the drawer base (1), wherein it is preferably provided that at least one articulated connection (13) is arranged on the outside on the side surface (4) of the drawer base (1) or between layers (18) of the drawer base (1) formed by the fold (3).

6. Drawer base (1) according to claim 5, wherein the drawer base (1) in the region of the at least two folds (3) each has a projection or a chamfer or a groove on which the articulated connection (13) is arranged at least in some areas.

7. Drawer bottom (1) according to one of the preceding claims, wherein the first thickness (5) in a drawer bottom plane (19) extending from the side surface (4) in the direction of the center point (9) of the drawer base (1) over a maximum of 15%, preferably a maximum of 10%, particularly preferably a maximum of 5%, of a width of the drawer base (1) and / or a maximum of 10 cm, preferably a maximum of 5 cm, particularly preferably a maximum of 2 cm.

8. Drawer base (1) according to one of the preceding claims, wherein the drawer base (1) comprises a carrier layer (20) and a decorative layer (21), preferably arranged and / or glued in regions, and / or an adhesive layer (22) or film layer (23), preferably arranged in regions.

9. Drawer bottom (1) according to one of the preceding claims, wherein the first thickness (5) is substantially 100%, preferably 200% or 300%, is greater than the second thickness (8) and / or the first thickness (5) is between 10mm and 30mm, preferably between 15mm and 20mm, and / or the second thickness (8) is between 5mm and 16mm, preferably between 8mm and 12mm.

10. Drawer base (1) according to one of the preceding claims, wherein the at least one spacer (33) or at least one of the at least two folds (3) that may be present, preferably in the case of two folds (3) or spacers (33) of adjacent ones that are present in the region of a corner edge (24) of the drawer base (1), Side surfaces (4), only partially extends over a side surface (4) of the drawer base (1).

11. Arrangement of two drawer side walls (25) for a drawer (2), preferably U-shaped and / or metallic frames, each comprising a preferably U-shaped fastening device (26) for connecting a drawer base (1) to the drawer side wall (25) and a drawer base (1) according to one of the preceding claims, which is arranged at least partially within the fastening devices (26).

12. Arrangement according to claim 11, wherein the first thickness (5) is adapted via the at least one spacer (33) in such a way as to correspond to the drawer side walls (25) that the drawer bottom (1) substantially corresponds to an internal distance (27) of the fastening devices (26) which is vertically oriented in the use state (7) of the arrangement.

13. Arrangement according to claim 11 or 12, wherein a drawer front (28) and / or a drawer back wall (29) is provided, which comprises a preferably U-shaped, further fastening device (30) and the drawer bottom (1) at least partially within the wider Fastening device (30) is arranged.

14. Arrangement according to one of claims 11 to 13, wherein the drawer bottom (1) is fixed to the drawer side walls (25) via at least one fastening means (31) and / or is connected to the drawer side walls (25) in a force-fitting and / or form-fitting manner by at least one plastic deformation, wherein it is preferably provided that the at least one fastening means (31) and / or the at least one plastic deformation - at least one layer (18) of the drawer base (1) formed by the at least one spacer (33) or the optionally present fold (3) penetrates partially or completely and / or - presses the drawer base (1) against one of the two fastening devices (26), particularly preferably in the vertical direction (6) in the use state (7) of the arrangement, and / or - in the vertical direction (6) in the use state (7) of the arrangement is arranged completely laterally next to the layer (18) formed by the at least one spacer (33) or the optionally present fold (3).

15. Arrangement according to one of claims 11 to 14, wherein the at least one spacer (33), preferably by elastic deformation and / or form-fitting, can be latched into the fastening devices (36) and / or, preferably force-fitting, can be clamped into the fastening devices (36) and / or the drawer side walls (25) have at least one, preferably pivotable relative to the fastening devices (26) and / or detachably the fastening devices (26) have a holding device (37) arranged or arrangeable, with which the at least one spacer (33) can be secured within the fastening devices (26).

16. Drawer (2) with an arrangement according to one of claims 11 to 15.

17. A method for producing a drawer base (1) according to one of claims 1 to 8, characterized by the following method steps: A plate-shaped starting material is provided and the at least one spacer (33) is arranged in the region of at least two side surfaces (4) of the drawer base (1), so that the drawer base (1) becomes thicker in the region of the at least two side surfaces (4) compared to a central region.

18. The method according to claim 17, wherein - the drawer base (1) is provided by machining from a plate-shaped starting material, the drawer base (1) is connected in an articulated manner by a film hinge (14) or a flexible layer (15) or a milled recess (16) and the drawer base (1) is folded via the articulated connection (13) to a multiple of its material thickness (32) in the central region, preferably in the region of the center point (9) or - a plate-shaped starting material is provided with a film hinge (14) or a flexible layer (15), the plate-shaped starting material is partially, in particular up to the film hinge (14) or the flexible layer (15) is machined to form the articulated connection (13) and the drawer bottom (1), and the drawer bottom (1) is folded to a multiple of its material thickness (32) in the central region, preferably in the region of the center point (9).

19. Method for assembling an arrangement according to one of the claims 11 to 15, characterized by the following, in particular in chronological order, Process steps: - the drawer bottom (1) is provided, preferably by the method according to claim 17 or 18 - the two drawer side walls (25) are each provided with a fastening device (26) - the drawer base (1) is arranged at least partially within the fastening devices (26) 20. The method according to claim 19, wherein in a preparatory method step, preferably computer-assisted, the first thickness (5) is adapted to an internal distance (27) of the fastening devices (26) and / or an internal distance (27) of the fastening devices (26) is adapted to the first thickness (5) and / or the second thickness (8) is adapted to a minimum load threshold value and / or a Maximum load threshold is adjusted.

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