TW202218585A - Furniture wall and method of producing same - Google Patents

Abstract

A method for producing a wall for a furniture carcass, in particular according to one of claims 1 to 20, having the following steps: introducing a cutout (7) into the wall by moving a chain milling machine (2) into the wall (1) from an end face (1a) of the latter, and introducing a fitting (14), designed to guide a furniture part, in particular furniture flaps or furniture doors, into the cutout (7) formed by the chain milling machine (2). The invention also relates to a wall (1) producing in this way.

Description

Wall for furniture body and method for manufacturing the same

The present invention relates to a wall for a furniture body having a groove extending into the wall from a preferably flat end face of the wall and into which a fitting is inserted which guides a movable Furniture parts, in particular furniture covers or furniture doors.

The invention also relates to a method of manufacturing such a wall for a furniture body.

For moving the lid closing the furniture body, furniture fittings are known in the form of lid fittings (control arm drives) mounted on the inner side of the interior side walls of the furniture body. These control arm drives usually include a spring-loaded force accumulator and a transmission mechanism that actuates the control arm, the free end of the control arm is connected to the furniture cover and pushes the furniture cover upwards against gravity when opened, thereby facilitating opening by the user .

Such a control arm drive is a relatively large component and thus limits the freely usable space inside the furniture body. The visual impression is also not ideal.

There are also furniture accessories, namely furniture door hinges that pivot about a vertical axis. These hinges usually consist of a hinge arm and a hinge cup (Scharniertopf) inserted into the groove of the furniture door. These furniture hinges also take up space inside the furniture body, albeit to a lesser extent.

Therefore, people have turned to integrating the control arm drive for the lid and the hinge for the door inside the wall of the furniture body. Examples of such integrated cover fittings can be found, for example, in DE 10 2017 104169 A1 or DE 10 2017 104170 A1. In the field of hinges, mention should be made of integrated hinges according to WO 2016/174071 A1 or WO 2020/006587 A1.

It is known, for example, to perform small circle milling of the hinge cups of existing hinges in furniture doors. Other millings for smaller hinge components are also known. However, especially for the use of cover fittings (control arm drives) for furniture covers, it has been thought so far that milling to form grooves that can accommodate furniture fittings is not feasible. Therefore, the solutions according to the prior art of DE 10 2017 104169 A1 and DE 10 2017 104170 A1 also provide other solutions, namely to form furniture walls in multiple parts and to integrate accessories under this multi-part structure. However, this is costly since standard sidewalls such as coated plywood or MDF panels cannot be used.

Therefore, the object of the present invention is: to avoid the disadvantages of the prior art and to provide a wall and a method of manufacturing the same, which can also accommodate larger fittings, in particular cover fittings, and door hinges with a greater installation depth, And here, standard materials can also be used for the walls. The wall should also feature a visually appealing uniform surface texture, whether on the outside or inside of the wall.

The above objects are achieved by a wall having the characteristics of each independent item, a method for producing the wall, and a furniture body and furniture.

Favorable setups and improvements are the subject of ancillary items.

The wall according to the invention is characterized by a groove milled from the end face, into which the fitting is then inserted. In order to produce this groove, chain milling tools are proposed in particular, which allow the production of relatively deep and narrow grooves in the wall, the width of which is close to the thickness of the wall (wall thickness).

Such chain milling tools, also known as chain mortising machines, are known per se. This is a machine tool for (cutting) machining materials, in which the chain milling tool contains at least one elongated flat blade around which a revolving milling chain moves. This milling chain is driven by a motor, usually an electric motor. The milling chain itself carries the actual milling tool elements, namely the protruding teeth or cutting edges on the individual chain links. These protruding teeth or cutting edges can also be reground.

To date, chain milling tools have mainly been used to mill wide mortise and tenon joints between wooden beams, or to mill relatively shallow grooves in lock boxes (so-called mortise locks). According to the invention, it has now been recognized that such a chain milling tool is also suitable for milling precise grooves from the end face in the walls of the furniture body, wherein relatively deep and narrow grooves can be produced, which grooves can also be particularly Holds cover fittings for driving furniture covers. However, larger door fittings can also be inserted into larger such grooves.

The main steps of an embodiment for manufacturing a wall for a furniture body are illustrated in figures 1a to 1c.

In figure 1a, a substantially cuboidal wall can be seen, for example consisting of wood or a wooden material and preferably a coated plywood or MDF board commonly used in furniture construction.

The wall 1 is preferably constructed in one piece. This one-piece feature is also retained during the production of grooves by chain milling tools (Kettenfräse) as described below. In contrast to the prior art, it is therefore not necessary to build the wall from several parts, eg from a central part and two lateral covering surfaces. However, the concept of forming the wall in one piece does not exclude that the wall, prior to processing according to the invention, is for example a multi-layer board, which is supplied by a board factory. Importantly, the groove 7 does not have to consist of several parts. Conversely, by inserting the chain milling tool 2 into the plate on the end face 1a in the direction of the arrow 6, as shown in the order of the drawings of Figs. 1a to 1c, the end face 1a is A groove 7 is milled into the plate.

The chain milling tool 2 comprises a drive housing with an electric motor and a protruding blade 4 around which an encircling milling chain 5 surrounds. The milling chain comprises known separate links with cutting edges (not shown here), preferably made of hard metal. These cutting edges are known per se and form the actual machining milling tool.

After simply withdrawing the chain milling tool from the plate 1 , as shown in FIG. 1 c , a recess remains, which substantially corresponds to the shape of the blade 4 with the surrounding milling chain 2 .

That is, in the embodiment illustrated in Figures 1a to 1c, the chain milling tool moves linearly in and out of the wall 1 in a single direction (single axis), ie parallel to the upper or lower edge and also parallel to both sides. a flat side surface 1b.

Figures 2a and 2b illustrate a slightly different embodiment of a plate with a slightly larger groove than that of Figures 1a to 1c, the groove being particularly suitable for receiving cover fittings.

In figure 2b, the geometrical relationship of a preferred embodiment of the wall according to the invention (without fittings inserted) is illustrated.

The groove 7 comprises two parallel laterally flat inner walls 7a, 7b extending preferably parallel to the outer side surface 1b of the wall and preferably perpendicular to the end face 1a of the wall. In this way, only very thin residual walls 1c remain on the left and right sides of the groove, however, this is sufficient to make the inside and outside of the wall 1 appear as if there were no grooves 7 (see Fig. 2a). Conversely, such thin residual walls allow the interior of the groove 7 to be relatively wide, thereby also accommodating larger cover fittings.

The groove 7 advantageously comprises two parallel upper and lower flat top and bottom walls 7c, 7d which likewise preferably extend perpendicular to the end face 1a of the wall 1 . This generally results in a substantially cuboidal recess 7 which is very suitable for receiving fittings, in particular cap fittings, which are generally likewise cuboidal in their external dimensions.

In the embodiment illustrated in Figures 2a and 2b, i.e. in the vertical viewing angle of the end face 1a of the wall 1, the groove 7 is rectangular and is preferably arranged as follows: this rectangular cross-section is mostly in the groove 7 Continue on at least 80% of the depth.

The rear wall 7e also comprises a flat portion 7e extending preferably parallel or slightly inclined to the end face 1a of the wall 1, as can still be clearly seen in Fig. 2d.

Only between the flat part 7e of the rear wall and the top and/or bottom walls 7c, 7d of the groove 7, is provided a non-flat but arcuate part 7f which separates the wall surfaces 7c, 7d and 7e are connected to each other or the wall surfaces are joined to each other.

This rounding comes from the front rounding area of a typical chain milling tool and is kept as small as possible to keep the space constraints on the fittings used, especially the cover fittings, as small as possible.

In general, it is advantageously provided that the groove 7 is formed as a blind hole and is closed on both sides except for the opening on the end face 1a of the wall 1, as illustrated in Fig. 2a. Thus, the appearance of the wall 1 is not spoiled by the technical parts of the fitting which will also be described in more detail below. The wall looks basically like a furniture body or a normal wall of furniture.

In figures 2c and 2d, exemplary dimensions of the wall 1 and preferred dimensions of the groove 7 are given, which are advantageous when inserting a fitting in the form of a cover fitting into the groove 7 later.

The wall 1 is initially a (coated) plywood, MDF board or a board made of another wood with a board thickness (thickness) D of 16 mm, which is typical in today's furniture construction. In addition, panels with different wall thicknesses can also be used, eg 19 mm thick panels. However, the invention can also be implemented with very thin sheets, ie with a sheet thickness D of 16 mm.

For this purpose, the grooves 7 are milled by means of the chain milling tool 2 in the manner described above and described further below, leaving only very small residual walls 1c with a wall thickness WS of 1.5 mm and 3 between mm, preferably 2 mm. With such a residual wall thickness, on the one hand a large clear width of the groove 7 can be achieved and negative effects, such as the residual wall 1c and bending of small thicknesses, can also be avoided.

Especially for inserting fittings in the form of cover fittings for lifting furniture covers into the grooves 7, as will be described in more detail below, the following dimensions according to figures 2c and 2d are advantageous:

It is advantageously provided that the maximum depth T of the grooves 7 is at least 150 mm, preferably at least 200 mm and particularly preferably at least 250 mm.

Advantageously, it is also provided that the width B of the groove 7 is between 10 mm and 16 mm, preferably approximately 12 mm.

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

According to a preferred embodiment of the present invention, it is provided that the grooves are as narrow and deep as possible. Expressed in relative numbers, this means that the maximum depth T of the groove 7 is at least 15 times greater than the width B of the groove 7, preferably at least 20 times greater.

It is further advantageous to provide that the maximum depth T of the groove 7 is at least 1.5 times greater, preferably at least 2 times greater, than the height H of the groove 7 .

The radius of the arcuate portion 7f is, for example, 26.5 mm. As mentioned above, this mainly depends on the shape of the front end of the blade portion 4 of the chain milling tool 2 .

In FIG. 3 another variation of the method steps for producing the groove 7 in the wall 1 by means of the chain milling tool 2 is shown. Unlike the previous embodiment, in the embodiment according to Fig. 3, the height of the knife portion 4 including the milling chain 5 is smaller than the height of the groove 7 finally realized. This is achieved by the fact that the chain milling tool 2 is not only moved in and out of the plate 1 linearly (uniaxially) from the end face 1a, but also moves within the plate in a vertical direction according to the direction of the arrow 8 .

At this point, it should be mentioned that the expressions vertical, height, etc. are related to the orientation of the wall 1 in the vertical direction, as the wall is also used as a furniture body or a side wall of the furniture when using cover fittings. It goes without saying that during the manufacturing process, due to the manufacturing technology, the board can of course be in other positions, and therefore the position descriptions such as vertical and height are changed accordingly.

The installation position of the finished wall with the grooves and the fittings used can also be varied compared to the embodiment shown. For example, a horizontal mounting position for the wall of an accessory that guides a door that can be pivoted about a vertical axis is possible.

In addition to the two-dimensional movement of the chain milling tool 2 as illustrated in Fig. 3, it is also possible to use a chain milling tool with two blade portions 4, 4', as illustrated in Figs. 5a and 5b. In this way, grooves 7 with a large height H can also be produced in a single linear working step.

During the manufacturing process, it is particularly advantageous that the chain milling tool 2 does not move transversely to the direction of the blade 4 (although this is also possible in principle). It is more advantageous to use a chain milling tool 2 whose milling width (defined by the width of the chain milling tool 2 or the cutting edge arranged on the chain milling tool 2 ) corresponds to the width B of the groove 7 .

In terms of height, it would be advantageous to use a chain milling tool 2 with a milling height corresponding to the height H of the groove 7 , for example in the embodiments of FIGS. 1 a to 1 c or in the embodiment according to FIGS. 5 a and 5 b Happening. In this case, when inserting the chain milling tool 2 into the wall 1, it is not necessary to move the chain milling tool 2 in height. In principle, however, such a movement is possible, as illustrated in FIG. 3 .

In principle, it is conceivable to manually guide the chain milling tool 2 relative to the plate and to produce the grooves 7 in the process. However, due to the desired small lateral residual wall 1c and large depth T, mechanical guidance is preferred, as illustrated purely schematically on the basis of the embodiment according to FIG. 4 . In this mechanical guidance, on the one hand a carrier 13 is provided, on which the schematically illustrated stops and/or holders 9 are arranged in order to keep the plate 1 stationary relative to the carrier 13 . The linear guide 12 for the chain milling tool 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 tool 2 can be pushed forward (uniaxially) along the linear guide 12 in the direction of the double arrow 11 , in order to penetrate the plate 1 via the end face 1 a and mill the groove 7 there. Of course, in practice the stop and/or holder 9 as well as the adjustment and displacement mechanism can be designed differently, and in particular can also be driven electrically in a computer-controlled manner.

The method according to the invention comprises not only the production of the groove 7 from the end face 1 a by means of the chain milling tool 2 , but also the subsequent insertion of the fitting 14 into this groove 7 .

The method steps are illustrated in Figures 6a and 6b. The fitting 14 illustrated here is a cover fitting designed to guide furniture parts (here furniture covers). Among them, Fig. 6a shows the cover fitting before insertion, and Fig. 6b shows a partially inserted cover fitting. Figure 6c then illustrates the fully inserted cover fitting. In this case, the front rectangular frame 15 rests on the front side of the recess 7 and covers the rectangularly running surrounding edge there. Furthermore, it can be seen in Figure 6c that, in the embodiment shown here, there is not only one side wall, but also a whole piece of furniture or a furniture body comprising two side walls of substantially identical design. A mirror-inverted cover fitting 6 can be embedded in the second side wall 6c.

The cover fitting 14 itself contains a known spring assembly 16 which forms a force accumulator which drives by means of a lever mechanism, a gear or a link cam at least one control arm 18 to which the cover 17 can be fastened , as illustrated in Figure 6d. The control arm drive is designed such that the weight of the cover 17 is substantially compensated and the cover can be easily opened over the entire travel path. The spring force and transmission are preferably designed so that the cover stops in any position. However, it is also possible to provide sections in which the spring assembly actively drives the cover on a certain pivot path, eg fully open or fully closed.

In the present case, however, the point is that almost the entire control arm drive (with the exception of the control arm 18 itself, where it has to protrude) is accommodated inside the side wall 1a which is completely normal in appearance, i.e. where the chain milling tool was previously used correspondingly Milled groove 7. Apart from the appearance, there is also an advantage in terms of storage space, since the control arm drive or cover fitting 14 is integrated in the wall and therefore does not take up any space inside the main body.

The subject of the present invention is not only a method for making a wall and the wall itself, but also a furniture body or furniture formed from at least one such wall, as illustrated by way of example only with reference to Figure 6d. Of course, other furniture can also be designed.

It is also possible to insert door fittings in place of cover fittings in the manner described above. At this point, the wall 1 is horizontal and the door pivots about a substantially vertical axis.

1: Wall 1a: end face 1b: Flat side surface 1c: residual wall 2: Chain milling tool 3: drive housing 4: Knife 4': Knife 5: Milling the chain 6: Arrow direction 7: Groove 7a: Flat inner wall 7b: Flat inner wall 7c: Flat top wall 7d: flat bottom wall 7e: Flat part of rear wall 7f: Arc section 8: Vertical direction 9: Stop/Keeper 10: Double arrow for height adjustment 11: Double Arrow of Push 12: Linear guide 13: Carrier 14: Accessories 15: Frame 16: Accumulator 17: Furniture parts, covers 18: Control Arm 19: Support plate A: Board length B: board height D: plate thickness R: radius H: groove height T: groove depth WS: Wall thickness of residual wall

Further advantages and details of the invention are explained in more detail with reference to the following description of the drawings.

Figures 1a, 1b and 1c schematically illustrate the method steps of an embodiment of the method according to the invention, in which grooves are produced in the side walls by means of a chain milling tool.

Figure 2a shows a perspective view of such a side wall before receiving the cover fitting. Figure 2b illustrates the same perspective view with an interior view, where the shape of the groove can be seen. Figure 2c illustrates a view of the end face of the wall according to Figures 1c, 2a and 2b. Figure 2d illustrates a side view of the wall of the above figures.

Figure 3 schematically illustrates an alternative manufacturing method for making grooves in the wall from the end face.

Figure 4 illustrates a robotic embodiment, in particular for holding walls and for guiding chain milling tools.

Figure 5a illustrates an embodiment of a special chain milling tool with two superimposed cutters. Figure 5b shows the chain milling tool when inserted into the wall from the end face.

Figure 6a illustrates a furniture body with two embodiments of a wall according to the invention and one of the two cover fittings before insertion into the respective wall. Figure 6b illustrates the process of inserting the cover fitting into one of the two walls. Figure 6c illustrates the furniture body with two cover fittings inserted. Figure 6d illustrates a furniture body with two cover fittings and a furniture cover mounted on the control arm cover fittings.

Domestic storage information (please note in the order of storage institution, date and number) none Foreign deposit information (please note in the order of deposit country, institution, date and number) none

1: Wall

1a: end face

1b: Flat side surface

2: Chain milling tool

3: drive housing

7: Groove

Claims (30)

A wall (1) for a furniture body, the wall (1) having a groove (7) extending from a preferably flat end face (1a) of the wall (1) to the inside the wall (1) and into the groove (7) is inserted a fitting (14) which guides a movable furniture part (17), in particular a furniture cover or a Furniture door, characterized in that the groove (7) is milled into the wall (1) from the end face (1a) of the wall (1), and the fitting (14) is likewise from the end face of the wall (1) (1a) Insert into this groove (7) which is milled. The wall as claimed in claim 1, wherein: the wall (1) is a vertical side wall or partition wall of a furniture main body in the installation position, and the fitting (14) is a cover fitting, a furniture cover (17) ) can be attached to the cover fitting. The wall of claim 2, wherein: the cover fitting includes a control arm drive, preferably including a spring accumulator (16), which drives at least one movable , preferably a pivotable control arm (18) that can be fastened to the furniture cover (17), wherein the control arm (18) is preferably at least mostly located in the recess in the closed position in the slot. The wall of claim 3, wherein: the control arm drive means comprises: at least one substantially flat support plate (19), the support plate (19) resting flatly against a flat surface of the groove (7) on the inner walls (7a, 7b). A wall as claimed in one of claims 1 to 4, wherein the fitting (14) is glued in the groove (7) milled out, or pressed in by means of preferably releasable retaining members Fitted and/or form-fitted in this groove (7) which is milled out. A wall as claimed in any one of claims 1 to 4, wherein: the groove (7) comprises two parallel, lateral, flat inner walls (7a, 7b), the inner walls (7a, 7b). 7b) extending preferably parallel to the outer side surfaces (1b) of the wall (1) and preferably perpendicular to the end face (1a) of the wall (1). A wall as claimed in any one of claims 1 to 4, wherein: the groove (7) comprises two parallel upper and lower flat top and bottom walls (7c, 7d), the top walls and The bottom wall (7c, 7d) preferably extends perpendicular to the end face (1a) of the wall (1). A wall as claimed in one of claims 1 to 4, wherein: at a vertical viewing angle of the end face (1a) of the wall (1), the groove (7) is rectangular, and preferably as follows Arrangement: The rectangular section continues for the most part over at least 80% of the depth of the groove (7). A wall as claimed in one of claims 1 to 4, wherein: the rear wall of the groove (7) comprises a flat portion (7e) preferably parallel or slightly inclined to the This end face (1a) of the wall (1) extends. A wall as claimed in claim 9, wherein: between the flat portion (7e) and the top wall and/or the bottom wall (7c, 7d) of the groove (7), the rear wall of the groove A curved portion (7f) is joined to the flat portion (7e) and the top and/or bottom walls (7c, 7d) of the groove (7). A wall as claimed in one of claims 1 to 4, wherein: the groove (7) is formed as a blind hole, and in all but the opening on the end face (1a) of the wall (1) closed on the side. A wall as claimed in one of claims 1 to 4, wherein: the maximum depth (T) of the groove (7) is at least 150 mm, preferably at least 200 mm and particularly preferably at least 250 mm. A wall as claimed in one of claims 1 to 12, wherein: the width (B) of the groove (7) is between 10 mm and 16 mm, preferably about 12 mm. A wall as claimed in one of claims 1 to 4, wherein: the height (H) of the groove (7) is between 80 mm and 160 mm, preferably about 120 mm. The wall of one of claims 1 to 4, wherein: the maximum depth (T) of the groove (7) is at least 15 times greater than the width (B) of the groove (7), preferably Earth is at least 20 times larger. The wall of one of claims 1 to 4, wherein: the maximum depth (T) of the groove (7) is at least 1.5 times greater than the height (H) of the groove (7), preferably Earth is at least twice as large. The wall of one of claims 1 to 4, wherein: the normal wall thickness (D) of the wall (1) is between 15 mm or 20 mm, preferably 16 mm or 19 mm. A wall as claimed in one of claims 1 to 4, wherein: the wall thickness (WS) of the residual wall (1c) on both sides of the groove (7) is between 1.5 mm and 3 mm, respectively It is preferably 2 mm. A wall as claimed in any one of claims 1 to 4, wherein the wall (1) consists essentially of wood or a wood material, and is preferably a coated plywood or an MDF board. A wall as claimed in one of claims 1 to 4, wherein: the wall (1) is preferably constructed in one piece. A method of manufacturing a wall for a furniture body, in particular a wall as claimed in one of claims 1 to 20, characterized by the following steps: making a groove (7) in the wall (1) by moving a chain milling tool (2) from an end face (1a) of the wall (1) into the wall (1), and Inserting a fitting (14) into the groove (7) formed by the chain milling tool (2), the fitting (14) is designed to guide a furniture part, in particular a furniture cover or a furniture door . A method as claimed in claim 21, wherein: using a chain milling tool (2) comprising a simple blade (4) around which a milling chain (5) driven by a motor is guided, The milling chain (5) has cutting edges protruding from the milling chain (5). A method as claimed in claim 21, wherein: a chain milling tool (2) having at least two cutting portions (4, 4') is used. The method of one of claims 21 to 23, wherein: a chain milling tool (2) is used, the milling width of the chain milling tool (2) corresponding to the width ( B) wherein the chain milling tool is linearly guided when inserted into the wall such that the chain milling tool does not change its lateral position relative to the wall. The method of one of claims 21 to 23, wherein: a chain milling tool (2) is used, the milling height of the chain milling tool (2) corresponding to the height ( H), wherein the chain milling tool is linearly guided when inserted into the wall (1), so that the chain milling tool does not change its height position relative to the wall. A method as claimed in one of claims 21 to 23, wherein the chain milling tool (2) moves up and down in the height (H) when or after being inserted into the wall (1) . A method as claimed in any one of claims 21 to 23, wherein: a chain milling tool is used which can be moved manually and/or by a motor along at least one preferably linear guide rail . A method as claimed in any one of claims 21 to 23, wherein: a chain milling tool is used, the chain milling tool comprising a carrier, the wall being accessible by means of preferably adjustable stops and/or retainers precisely fixed on the carrier. A method as claimed in one of claims 21 to 23, wherein: a furniture part, in particular a door or a furniture cover (17), is fastened to the fitting (14) inserted in the groove or to In the protruding part of the fitting (14), in particular it is fixed on the control arm (18) of a cover fitting. A piece of furniture or furniture body comprising at least one wall as claimed in one of claims 1 to 20 and/or manufactured in a method as claimed in one of claims 21 to 29.

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