Wall for a furniture carcass and method for the production thereof

Abstract

Furniture or furniture body, comprising at least one wall (1) with a recess (7) which extends from a - preferably flat - end face (1a) of the wall (1) into the wall (1) and into which a fitting (14) is inserted which guides a movable furniture part (17), wherein the recess (7) is milled into the wall (1) from the end face (1a) of the wall (1) and the fitting (14) is also inserted into the milled recess (7) from the end face (1a) of the wall (1), and wherein the wall (1) consists of one piece and is vertically aligned.

Description

[0001] The invention relates to a piece of furniture or a furniture body, comprising at least one wall with a recess which extends from a - preferably flat - end face of the wall into the wall and into which a fitting is inserted which guides a movable furniture part.

[0002] For moving flaps that close a furniture body, furniture fittings in the form of flap fittings (actuator arm drives) are already known. These are mounted on the inside of a side panel of the furniture body. These actuator arm drives generally have a spring-loaded energy storage device and a transmission mechanism that actuates actuating arms. The free ends are connected to a furniture flap and push it upward against gravity when opening, thus making it easier for the user to open.

[0003] Such actuators are relatively large components and therefore limit the available space inside the furniture body. The visual impression is also suboptimal.

[0004] There are also furniture fittings, namely hinges for furniture doors, that pivot around a vertical axis. These hinges generally consist of a hinge arm and a hinge cup that is inserted into a recess in the furniture door. These furniture hinges also take up space inside the furniture body—albeit to a lesser extent.

[0005] Therefore, the trend has shifted to integrating both the actuator arm drives for flaps and hinges for doors into the interior walls of the furniture body. An example of such an integrated flap fitting can be found in DE 10 2017 104169 A1 or DE 10 2017 104170 A1. In the hinge sector, integrated hinges according to WO 2016 / 174071 A1 or WO 2020 / 006587 A1 are worth mentioning.

[0006] It is already known to make small, round cutouts, for example, for the hinge cup of existing hinges in furniture doors. Other cutouts for smaller hinge parts are also known. However, particularly for the use of flap fittings (actuator arm drives) for furniture flaps, the opinion has so far been that milling to create a recess into which the furniture fitting can be accommodated does not work. Therefore, the prior art solutions according to DE 10 2017 104169 A1 and DE 10 2017 104170 A1 also provide other solutions, namely to construct the furniture wall in several parts and to integrate the fitting within this multi-part design. However, this is complex because it does not allow the use of standard side panels, such as coated chipboard or MDF boards.

[0007] The object of the invention is therefore to avoid the disadvantages of the prior art and to provide a piece of furniture or a furniture body with a wall that can accommodate larger fittings, in particular flap fittings, but also door hinges with greater installation depth, while also allowing the use of standard materials for the wall. The wall should also be characterized by a visually appealing, uniform surface finish on both its exterior and interior.

[0008] This object is achieved by a piece of furniture or furniture body with a wall having the features of independent claim 1.

[0009] Advantageous embodiments and further developments are the subject of the dependent claims.

[0010] The wall is characterized by a recess milled from the front side, into which the fitting is then inserted. A chain cutter is recommended for creating this recess, which allows for a relatively deep and narrow recess in the wall, the width of which almost reaches the thickness of the wall.

[0011] Such chain milling machines (also called chain mortisers) are well known. They are machine tools for machining material. The chain milling machine has at least one elongated, flat blade around which a revolving milling chain moves. This is driven by a motor, generally an electric motor. The milling chain itself carries the actual milling tool elements, namely protruding teeth or cutting edges on the individual chain links. These can also be reground.

[0012] Chain cutters have previously been used primarily to mill wide tenon holes for tenon joints in wooden beams or relatively shallow pockets in lock cases (so-called mortise locks). The invention now recognizes that such chain cutters are also suitable for milling precise recesses from the front into the wall for a furniture body, creating a relatively deep and narrow recess that is particularly suitable for accommodating a flap fitting for driving a furniture flap. However, larger door fittings can also be inserted into such larger recesses.

[0013] Further advantages and details of the invention are explained in more detail with reference to the following description of the figures.

[0014] The Figures 1a, 1b and 1cshow schematically the method steps of an embodiment of a method in which a recess is made in a side wall by means of a chain milling cutter.

[0015] The Fig. 2a shows a perspective view of such a side wall before the flap fitting is installed. Fig. 2b shows the same perspective view with a view of the interior, from which the shape of the recess is evident. Fig. 2c shows a view of the front side of the wall according to the Figures 1c , 2a and 2b . The Fig. 2d shows a side view of the wall of the figures mentioned above.

[0016] The Fig. 3 shows schematically an alternative manufacturing method for creating a recess in a wall from the front side.

[0017] The Fig. 4 shows an automatic, mechanical embodiment, in particular for holding the wall and for guiding the chain milling machine.

[0018] The Fig. 5a shows an example of a special chain cutter with two blades arranged one above the other. Fig. 5b shows this chain cutter penetrating the wall from the front.

[0019] The Fig. 6a shows a furniture body with two examples of a wall and one of two flap fittings before insertion into the respective wall. Fig. 6b shows the process of inserting the flap fitting into one of the two walls. Fig. 6c shows a furniture body with both flap fittings inserted. Fig. 6d shows the furniture body with the two flap fittings and a furniture flap mounted on the actuating arms.

[0020] In the Figures 1a to 1c The essential steps of an embodiment for producing a wall for a furniture body are shown.

[0021] In Fig. 1ayou can see an essentially cuboid-shaped wall, which is made of wood or a wood-based material, for example, and is preferably a coated chipboard or an MDF board, as is typically used in furniture construction.

[0022] The wall 1 preferably consists of a single piece. This one-piece design is also maintained during the process of creating the recess using a chain milling machine, as described below. In contrast to the prior art, the wall therefore does not need to be constructed from multiple parts, for example a core and two lateral cover surfaces. However, the term "a single-piece wall" does not exclude the possibility that the wall, prior to processing, is, for example, a multi-layer panel supplied as such from a panel factory. What is important is that no multiple parts are required to create the recess 7. Rather, a recess 7 is milled into the panel using a chain milling machine 2 for the end face 1a, as shown in the sequence of images 1a to 1c, by inserting the chain milling machine 2 into the panel over the end face 1a in the direction of arrow 6.

[0023] The chain cutter 2 comprises a drive housing with an electric motor and a protruding blade 4, around which a revolving cutter chain 5 is guided. This cutter chain, as is known, has individual links carrying several cutting edges, preferably made of hard metal (not shown here). These cutting edges are known per se and constitute the actual cutting cutters.

[0024] After simply pulling the chain cutter back from plate 1, what remains is - as the Fig. 1c shows - a recess which essentially corresponds to the shape of the blade 4 together with the rotating milling chain 2.

[0025] In the Figures 1a to 1c In the embodiment shown, the chain milling cutter is moved linearly into and out of the wall 1 in a single direction (uniaxial), parallel to the upper or lower side edge and also parallel to the two flat side surfaces 1b.

[0026] The Figures 2a and 2bshow a slightly different embodiment of a plate with a Figures 1a to 1c slightly larger recess, which is particularly suitable for accommodating flap fittings.

[0027] In Fig. 2b the geometric conditions of a preferred embodiment of a wall (without fittings installed) are shown.

[0028] The recess 7 has two parallel, lateral, flat inner walls 7a, 7b, which are preferably parallel to the outer side surfaces 1b of the wall and preferably perpendicular to the end face 1a of the wall. Thus, only a very thin residual wall 1c remains to the left and right of the recess, which is sufficient to make the external appearance of the inside and outside of the wall 1 appear as if there were no recess 7 (see Fig. 2a). Conversely, this thin remaining wall allows for a relatively wide interior space in the recess 7, so that even larger flap fittings can be accommodated.

[0029] The recess 7 advantageously has two parallel, upper and lower, flat top and bottom walls 7c, 7d, which also preferably run perpendicular to the end face 1a of the wall 1. This results in an overall substantially cuboid-shaped recess 7, which is well suited for accommodating fittings, in particular flap fittings, which are typically also cuboid in their external dimensions.

[0030] The recess 7 is in the Figures 2a and 2b illustrated embodiment, i.e. in a vertical view of the front side 1a of the wall 1, is rectangular in shape and it is preferably provided that this rectangular cross-section continues over a large part, at least 80%, of the depth of the recess 7.

[0031] The rear wall 7e also has a flat section 7e, which is preferably parallel or slightly slanted, as shown in Fig. 2d will be apparent, runs to the front side 1a of wall 1.

[0032] Only between the flat section 7e of the rear wall and the top wall and / or bottom wall 7c, 7d of the recess 7 is a non-flat, but rather curved section 7f provided, which connects the wall surfaces 7c, 7d and 7e with each other or these wall surfaces merge into one another.

[0033] This rounding comes from the front, rounded area of ​​a typical chain milling machine and is kept as small as possible in order to minimize space restrictions for the fittings used, especially the flap fittings.

[0034] Overall, it is therefore advantageous that the recess 7 is designed as a blind hole and is closed on both sides except for the opening in the front side 1a of the wall 1, as is the case, for example, with Fig. 2a This means that the external appearance of wall 1 is not impaired by the technical components of the fittings described in more detail below. The wall essentially looks like a normal wall of a furniture body or piece of furniture.

[0035] In the Figures 2c and 2d exemplary dimensions of the wall 1 and preferred dimensions of the recess 7 are given, as they are advantageous for the later use of a fitting in the form of a flap fitting in the recess 7.

[0036] Wall 1 is initially a (coated) chipboard, MDF board, or a board made of another wood-based material with a thickness D of 16 mm, typical in modern furniture construction. Boards of other thicknesses, for example, 19 mm thick boards, can also be used. However, the invention can also be implemented with very thin boards, namely boards with a thickness D of 16 mm.

[0037] For this purpose, a recess 7 is milled using a chain milling machine 2, as described above and further described below, leaving only a very small residual wall 1c with a wall thickness WS of between 1.5 mm and 3 mm, preferably 2 mm. Such a residual wall thickness allows for a large clearance of the recess 7 while also avoiding negative influences such as warping of the residual wall 1c and the small thickness.

[0038] In particular for the use of fittings in the form of flap fittings for lifting furniture flaps into the recess 7, as will be described in more detail below, the following dimensions are to be observed in accordance with the Figures 2c and 2d favorable: It is advantageous that the greatest depth T of the recess 7 is at least 150 mm, preferably at least 200 mm and particularly preferably at least 250 mm.

[0039] It is further advantageously provided that the width B of the recess 7 is between 10 mm and 16 mm, preferably approximately 12 mm.

[0040] Furthermore, it is advantageously provided that the height H of the recess 7 is between 80 mm and 160 mm, preferably approximately 120 mm.

[0041] According to a preferred embodiment of the invention, the recess is as narrow and deep as possible. Expressed in relative terms, this means that the greatest depth T of the recess 7 is at least 15 times, preferably at least 20 times, greater than the width B of the recess 7.

[0042] It is further advantageously provided that the greatest depth T of the recess 7 is at least 1.5 times, preferably at least 2 times, greater than the height H of the recess 7.

[0043] The radius of the curved section 7f, for example, is 26.5 mm. As already mentioned, it is mainly determined by the front shape of the blade 4 of the chain cutter 2.

[0044] In Fig. 3 A further variant of the method step of making a recess 7 in the wall 1 by means of a chain cutter 2 is shown. In contrast to the previous embodiments, in this embodiment according to Fig. 3the height of the blade 4 including the milling chain 5 is less than the height of the ultimately achieved recess 7. This is achieved by the chain milling cutter 2 not only being moved linearly (uniaxially) into and out of the plate 1 from the front side 1a, but also being moved vertically within the plate according to the direction of the arrow 8.

[0045] It should be noted here that the vertical, height, etc. specifications refer to a vertical orientation of wall 1, just as the wall is used as a side panel of a furniture body or piece of furniture when using flap fittings. It goes without saying that, for technical reasons, the panel can, of course, assume other positions during production, and the vertical, height, etc. specifications will therefore change accordingly.

[0046] Apart from a two-dimensional movement of the chain cutter 2, as in Fig. 3As indicated, it is also possible to use a chain cutter with two blades 4, 4', as shown in the Figures 5a and 5b This also allows recesses 7 with a large height H to be produced in a single, linear work step.

[0047] During production, it is particularly advantageous not to move the chain cutter 2 transversely to the direction of the blade 4 (although this is also possible in principle). It is more advantageous to use a chain cutter 2 whose cutting width (defined by the width of the cutter chain 2 or the cutting edges arranged on it) corresponds to the width B of the recess 7.

[0048] As far as the height is concerned, it is advantageous to use a chain cutter 2 whose cutting height corresponds to the height H of the recess 7, as is the case, for example, in the embodiment of the Figures 1a to 1c or in the embodiment according to the Figures 5a and 5bwas the case. There, the chain cutter 2 does not have to be moved vertically when inserting it into the wall 1. In principle, however, such a movement is possible, as is the case with the Fig. 3 has shown.

[0049] In principle, it is conceivable to guide the chain milling machine 2 relative to the plate manually and thereby create the recess 7. However, due to the desired small lateral residual wall 1c and the large depth T, a mechanical guidance is preferable, as is the case with the embodiment according to the Fig. 4is shown purely schematically. With such a mechanical guide, on the one hand, a carrier 13 will be provided, on which schematically shown stops and / or holders 9 are provided in order to hold the plate 1 stationary relative to the carrier 13. A linear guide 12 for the chain milling machine 2 is then also attached to the same carrier 13. This linear guide 12 can be adjusted in height according to the double arrow 10. The chain milling machine 2 can be advanced along the linear guide 12 in the direction of the double arrow 11 (single-axis) so that it penetrates into the plate 1 via the end face 1a and mills out the recess 7 there. Of course, in practice the stops and / or holders 9 as well as the adjustment and movement mechanisms can be designed differently, in particular also be driven electrically, computer-controlled.

[0050] The method comprises not only the introduction of a recess 7 by means of a chain milling machine 2 from the front side 1a, but also the subsequent introduction of a fitting 14 into this recess 7.

[0051] This process step is in the Figures 6a and 6b The fitting 14 shown there is a flap fitting designed to guide a piece of furniture (here a furniture flap). Fig. 6a the flap fitting before inserting and the Fig. 6b the partially inserted flap fitting. Fig. 6c shows the fully inserted flap fitting. The front, rectangular frame 15 then lies flush with the front of the recess 7 and covers the rectangular edges running there. Fig. 6cIncidentally, it can be seen that the embodiment shown therein does not just have one side wall, but rather an entire piece of furniture or a furniture body, which has two essentially identical side walls. A mirror-inverted flap fitting 6 can be installed in the second side wall 6c.

[0052] The flap fitting 14 itself has, in a manner known per se, a spring assembly 16 which forms a force accumulator which, via a lever mechanism, gear wheels or a cam, drives at least one actuating arm 18 to which a flap 17 can be fastened, as is the case with the Fig. 6dThe actuator arm drive is designed to essentially compensate for the gravity of the flap 17, allowing smooth opening of the flap over its entire travel. Preferably, the spring force and transmission ratio are designed so that the flap remains stationary in any position. However, sections are also possible in which the spring assembly actively drives the flap over a specific pivoting path, for example, fully opening or fully closing.

[0053] In the present case, however, the issue is that almost the entire actuating arm drive, except for the actuating arm 18 itself, which necessarily protrudes there, is accommodated inside the otherwise completely normal-looking side wall 1a, namely in the recess 7 that was previously milled out accordingly with a chain milling machine. Apart from the visual aspect, there are also advantages in terms of storage space because the actuating arm drive or flap fitting 14 is integrated into the wall and therefore does not take up any space inside the body.

[0054] The subject of the invention is not only a method for producing a wall and the wall itself, but also a furniture body formed with at least one such wall or a piece of furniture, as can be seen from the Fig. 6d This is shown purely as an example. Of course, other furniture designs can also be used.

[0055] It is also possible to use a door fitting instead of the flap fitting in the manner described above. List of reference symbols:

[0056] 1Wall 1aFront side 1bFlat side surface 1cRemaining wall 2Chain cutter 3Drive housing 4Sword 4'Sword 5Cutting chain 6Arrow direction 7Recess 7a, 7bFlat interior walls 7c, 7dFlat top and bottom walls 7eFlat section of the rear wall 7fCurved section 8Vertical direction 9Stops / holders 10Double arrow height adjustment 11Double arrow feed 12Linear guide 13Support 14Fitting 15Frame 16Energy storage 17Furniture part, flap 18Adjusting arm 19Support plate APanel length BPanel height DPanel thickness RRadius HHeight of the recess TTepth of the recess WSWall thickness of the remaining wall

Claims

1. A piece of furniture or furniture body, comprising at least one wall (1) with a recess (7) which extends from a - preferably flat - end face (1a) of the wall (1) into the wall (1) and into which a fitting (14) is inserted which guides a movable furniture part (17), characterized in that the recess (7) is milled into the wall (1) from the end face (1a) thereof and the fitting (14) is also inserted into the milled recess (7) from the end face (1a) of the wall (1), the wall (1) being made of one piece and being vertically aligned.

2. Furniture or furniture body according to claim 1, characterized in thatthe wall (1) is a side wall or partition wall of a furniture body - vertical in the installed position - and the fitting (14) is a flap fitting to which a furniture flap (17) can be fastened, preferably wherein the flap fitting has an actuating arm drive - preferably comprising a spring energy accumulator (16) - which drives at least one movable, preferably pivotable, actuating arm (18) which can be fastened to the furniture flap (17), wherein the actuating arm (18) in the closed position preferably lies at least largely within the recess, particularly preferably wherein the actuating arm drive has at least one essentially flat support plate (19) which lies flat against a flat inner wall (7a, 7b) of the recess (7).

3. Furniture or furniture body according to claim 1 or 2, characterized in that the fitting (14) is glued in the milled recess (7) or is fastened in a force-fitting and / or form-fitting manner via preferably releasable holding means.

4. Furniture or furniture body according to one of claims 1 to 3, characterized in that - the recess (7) has two parallel, lateral, flat inner walls (7a, 7b) which are preferably parallel to the outer side surfaces (1b) of the wall (1) and preferably run perpendicular to the end face (1a) of the wall (1), and / or - the recess (7) has two parallel, upper and lower, flat top and bottom walls (7c, 7d) which are preferably perpendicular to the end face (1a) of the wall (1).

5. Furniture or furniture body according to one of claims 1 to 4, characterized in that the recess (7) is rectangular in shape in a vertical view of the end face (1a) of the wall (1), and it is preferably provided that this rectangular cross-section continues over a large part, at least 80% of the depth of the recess (7).

6. Furniture or furniture body according to one of claims 1 to 5, characterized in thatthe rear wall of the recess (7) has a flat section (7e) which preferably runs parallel or slightly obliquely to the end face (1a) of the wall (1), preferably wherein the rear wall of the recess merges into the top wall and / or bottom wall (7c, 7d) of the recess (7) in an arcuate section (7f) between the flat section (7e) and the latter.

7. Furniture or furniture body according to one of claims 1 to 6, characterized in that the recess (7) is designed like a blind hole and is closed on all sides except for the opening in the front side (1a) of the wall (1).

8. Furniture or furniture body according to one of claims 1 to 7, characterized in that the greatest depth (T) of the recess (7) is at least 150 mm, preferably at least 200 mm, and particularly preferably at least 250 mm.

9. Furniture or furniture body according to one of claims 1 to 8, characterized in that the width (B) of the recess (7) is between 10 mm and 16 mm, preferably about 12 mm.

10. Furniture or furniture body according to one of claims 1 to 9, characterized in that the height (H) of the recess (7) is between 80 mm and 160 mm, preferably about 120 mm.

11. Furniture or furniture body according to one of claims 1 to 10, characterized in that the greatest depth (T) of the recess (7) is at least 15 times, preferably at least 20 times greater than the width (B) of the recess (7).

12. Furniture or furniture body according to one of claims 1 to 11, characterized in that the greatest depth (T) of the recess (7) is at least 1.5 times, preferably at least 2 times greater than the height (H) of the recess (7).

13. Furniture or furniture body according to one of claims 1 to 12, characterized in that the normal wall thickness (D) of the wall (1) is between 15 mm or 20 mm, preferably 16 mm or 19 mm.

14. Furniture or furniture body according to one of claims 1 to 13, characterized in thatthe wall thickness (WS) of the remaining wall (1c) on both sides of the recess (7) is between 1.5 mm and 3 mm, preferably 2 mm.

15. Furniture or furniture body according to one of claims 1 to 14, characterized in that the wall (1) consists essentially of wood or a wood-based material, and is preferably a coated chipboard or an MDF board.

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