Platte
A plastic panel with specially designed edges and a machining tool enhances the visual appeal and structural integrity of furniture, addressing inefficiencies in existing melamine panels by providing a cost-effective and sustainable manufacturing process.
Patent Information
- Application Number
- DE102024209929
- Authority / Receiving Office
- DE · DE
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2026-04-16
AI Technical Summary
Existing furniture panels, particularly those made of melamine, lack both visual appeal and structural integrity, and their manufacturing processes are not efficient or cost-effective.
The development of a plastic panel with specially designed edge areas and a machining tool featuring contour and chamfer cutting elements allows for the creation of a visually appealing and load-bearing furniture piece, utilizing a symmetrical, angular panel design with edge recesses and chamfers, and a frame system that provides a secure fit.
The solution results in a visually appealing and structurally robust furniture panel that is easy to manufacture, reduces assembly gaps, and ensures a secure frame connection, while being cost-effective and sustainable through the use of recycled plastic fibers.
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Abstract
Description
[0001] The invention relates to a panel, in particular for a piece of furniture, such as a desk, shelf, counter, chest of drawers, or cabinet. Furthermore, the invention relates to a piece of furniture comprising at least one such panel. The invention also relates to a method for manufacturing a panel and to a processing tool for manufacturing a panel.
[0002] From the prior art, furnishings comprising frames and panels held by these frames are known through obvious prior use. The panels are made, for example, of melamine and are formed by casting.
[0003] The invention is based on the objective of providing a panel that, for example, allows the creation of an improved, visually appealing, and / or load-bearing piece of furniture. It also aims to create a piece of furniture that is improved, visually appealing, and load-bearing. Furthermore, a method for manufacturing a panel is to be provided that, for example, enables the creation of an improved, visually appealing, and / or load-bearing piece of furniture. A processing tool is intended to allow the simple and reliable production of a panel and, for example, to enable the creation of an improved, visually appealing, and / or load-bearing piece of furniture.
[0004] This problem is solved according to the invention by the features specified in claims 1, 8, 10 and 14.
[0005] The core feature of the plate is that it is made of plastic and has at least one specially designed or shaped edge area. The same applies to the process.
[0006] The machining tool is characterized by at least one specially designed or shaped contour cutting element in order to machine at least one edge area of the plate base body and in particular to form a specially shaped edge area.
[0007] It is advantageous if the plate is symmetrical with respect to at least one plane of symmetry.
[0008] The plate is preferably angular in its basic shape or in plan view. It advantageously has a polygonal basic shape, such as triangular, square, pentagonal, hexagonal, heptagonal, or octagonal. Preferably, the plate is rigid or load-bearing.
[0009] The sheet is made at least partially, preferably entirely, of plastic. It is advantageous if it is opaque. The sheet is formed, for example, by extrusion, casting, felting, and subsequent rolling.
[0010] The panel can be advantageously oriented in / on the frame in different ways, such as horizontally, vertically, or at an angle to a horizontal. Depending on the orientation, the first or second main surface forms, for example, a top, bottom, outside, front, back, or inside.
[0011] Preferably, the first main surface and the second main surface extend parallel to each other.
[0012] Preferably, the at least one edge region is symmetrical with respect to at least one plane of symmetry and is preferably elongated. The plate advantageously has several edge regions, which, for example, are spaced apart from one another or extend in different directions. The number of edge regions preferably corresponds to the number of corners of the plate if it is angular. The plate may, for example, have exactly one edge region, which is then preferably circumferential. It is also possible that at least one edge of the plate remains unprocessed.
[0013] The at least one edge recess is advantageously channel-shaped and preferably open outwards, i.e., away from the center of the plate. It is preferably spatially limited inwards, i.e., towards the center of the plate, by the at least one edge surface. It is advantageous if the at least one edge recess is continuous. Its cross-section is, for example, (essentially) semicircular or circular segment-shaped. The shape of the at least one edge recess is determined in particular by the shape or course of the at least one edge surface. The at least one edge surface is preferably facing outwards.
[0014] The frame of the furnishing is preferably stable and preferably made up of several parts. It is advantageous if it is assemblable and disassemblable.
[0015] The at least one frame body preferably extends in a straight line. It is preferably elongated and, for example, (essentially) cylindrical, either as a hollow or solid body. It is advantageously rigid and, for example, made of metal. The frame preferably comprises a plurality of frame bodies that are identical or differ from one another, such as in their length. It is advantageous if the frame bodies, if there are several, have identical cross-sections or external shapes. It is beneficial if adjacent frame bodies can be connected to one another, preferably detachably, via, for example, separate connecting elements. Advantageously, each frame body has at least one, preferably separate, connecting element at its end, such as a thread, threaded body, screw, dowel, or clamping element, or each frame body is connected to at least one such connecting element, at least in the assembled state.
[0016] It is advantageous if the cross-section of the at least one edge region and the outer shape of the at least one frame body are at least partially adapted to one another. Ideally, in its assembled state, the at least one frame body projects outwards from the at least one edge region perpendicular to its longitudinal extent or longitudinal center axis.
[0017] The (essentially) form-fitting engagement of at least one frame component with at least one edge area creates a piece of furniture that is particularly load-bearing and visually appealing. Gaps between the at least one frame component and the panel are reduced or eliminated when assembled.
[0018] It is advantageous if the main surfaces of the plate base and the plate itself are identical. Ideally, the main surfaces of the plate base remain unchanged or unprocessed. The plate base is, for example, cut to size.
[0019] The basic body of the machining tool is preferably motor-driven. It is advantageous if it is rotary-driven or if its longitudinal center axis forms a rotational axis. Preferably, the basic body of the machining tool is multi-part.
[0020] The at least one contour cutting element is, for example, formed integrally with the tool body or separately from it. It is preferably plate-like and made, for example, of carbide. The at least one contour cutting element preferably extends in a plane that is spaced apart, but advantageously parallel to the longitudinal center axis of the tool body. It is advantageous if several contour cutting elements are present, which are then preferably spaced apart from each other, particularly around the longitudinal center axis of the tool body, and preferably at uniform intervals. The at least one contour cutting element ensures the precise and efficient creation of the at least one edge region.For example, it has a maximum width perpendicular to the longitudinal center axis of between 10 mm and 20 mm and a thickness in the circumferential direction around the longitudinal center axis of between 2 mm and 6 mm.
[0021] Further advantageous embodiments of the invention are specified in the dependent claims.
[0022] The at least one edge surface according to subclaim 2 is particularly easy to manufacture and preferably has a uniform shape along the at least one edge region. For example, the radius of curvature is between 5 mm and 20 mm.
[0023] The plate according to dependent claim 4 is particularly simple and cost-effective to manufacture and can be produced with precision. At least one edge region has a consistent shape.
[0024] The plate according to dependent claim 5 is also particularly easy and cost-effective to manufacture. The machining process creates, in particular, the recess on the edge. This machining takes place only after the plate body has been formed.
[0025] The panel according to dependent claim 6 is formed from, for example, identical or different plastic fibers. The plastic fibers preferably originate from a recycling process, meaning they are obtained through recycling. The panel is thus particularly sustainable and, for example, reinforced by felting. It is, for example, a recycled or felted panel.
[0026] The panel according to subclaim 7 is visually very appealing. Furthermore, it is easy to install. Sharp edges are reduced or eliminated. They are flattened / chamfered, or (narrow) beveled surfaces run in their place. It is advantageous if, in the at least one edge region, a first chamfer and a second chamfer are present, which preferably run spaced apart from each other in one thickness direction of the panel. Each chamfer, for example, forms an angle between 30° and 50° with an adjacent main surface and has a spacing between 1 mm and 4 mm.
[0027] It is advantageous if the panel, if it is square, is chamfered in its corner areas, particularly through machining such as milling, so that the corner edges are flattened / beveled or (narrow) beveled surfaces are present instead. This allows for easy assembly, especially due to the design of the connecting pieces.
[0028] The at least one frame body according to subclaim 9 has, for example, at least in certain areas a circular or annular cross-section.
[0029] The displacement of the at least one machining tool and the plate base body according to dependent claim 12 is preferably linear or along at least one linear machining path. The at least one machining tool and / or the plate base body are displaced accordingly.
[0030] In the method according to dependent claim 13, the at least one machining tool engages the plate base body in a region between the main surfaces at the edge. It penetrates the plate base body from the outside in this region. To create an edge region, the machining tool and the plate base body are preferably displaced relative to each other at least once in a respective direction of movement. During this displacement, the machining tool and the plate base body preferably extend parallel to each other and are, for example, located in a common machining plane.
[0031] The machining tool is preferably part of a machining device, which, for example, has a frame for support against a surface, such as a floor. The machining device comprises at least one machining tool and, advantageously, at least one drive for driving, in particular rotary driving, the at least one machining tool. The at least one machining tool is, for example, movable relative to the mounted plate base body by means of at least one slide, preferably linearly, and in particular guided. Alternatively or additionally, the mounted plate base body is movable relative to the at least one machining tool, preferably linearly, and in particular guided.
[0032] The at least one contour cutting area according to dependent claim 15 allows for the reliable and precise generation of the at least one edge area. It is preferably facing outwards or is convex. The at least one contour cutting area has, for example, an arc-shaped, in particular circular arc-shaped, contour cutting flank or edge, or is formed by such a contour cutting flank or edge.
[0033] The at least one contour cutting element according to dependent claim 16 preferably projects slightly beyond the base body of the machining tool or the at least one hollow profile body of the machining tool, if present, in the direction of the longitudinal center axis, at least on one side, preferably on both sides, by between 0.2 mm and 1.5 mm. For example, it projects perpendicular to the longitudinal center axis beyond the base body of the machining tool or the at least one hollow profile body, if present, in particular uniformly, in an arc-like manner, outwards by between 0.2 mm and 1.2 mm.
[0034] The at least one chamfer cutting element according to dependent claim 17 allows for the precise and efficient generation of the at least one chamfer. It is preferably substantially plate-like or wedge-shaped and consists, for example, of carbide. Advantageously, it is designed as a tooth, in particular a saw tooth. The at least one chamfer cutting element has, for example, a maximum width perpendicular to the longitudinal center axis of between 5 mm and 15 mm and a thickness in the circumferential direction around the longitudinal center axis of between 1.5 mm and 5 mm. The at least one chamfer cutting element is, for example, formed integrally with the machining tool body or separately from it. It preferably extends in a plane that is spaced apart from the longitudinal center axis of the machining tool body. The at least one chamfer cutting element is either leading or lagging behind the at least one contour cutting element during operation.Alternatively, they are neither leading nor trailing. It is advantageous to have several chamfer cutting elements. The chamfer cutting elements for producing a chamfer are preferably identical. The chamfer cutting elements for producing a chamfer are advantageously arranged at a distance from each other, preferably uniformly spaced around the longitudinal center axis of the machining tool body.
[0035] The at least one chamfer cutting element according to dependent claim 18 preferably projects slightly beyond the machining tool body or the at least one chamfer profile, if present, for example, (essentially) uniformly. For example, it projects at least on one side, such as outwards or inwards, preferably on both sides, beyond the machining tool body or the at least one chamfer profile, if present, in the direction of the longitudinal center axis by between 0.2 mm and 1.2 mm. For example, it projects outwards from the machining tool body or the at least one chamfer profile, if present, perpendicular to the longitudinal center axis by between 0.2 mm and 1.2 mm.
[0036] The chamfer cutting areas according to dependent claim 19 preferably extend obliquely to a main plane of the machining tool that is perpendicular to the longitudinal center axis. They have, for example, a flat chamfer cutting flank or a straight chamfer cutting edge, or are formed by such a contour cutting flank or edge.
[0037] Subclaims 2 to 7 and the statements relating thereto also concern advantageous embodiments of the method.
[0038] A preferred embodiment of the invention is described below by way of example with reference to the accompanying drawing. The drawing shows: Fig. 1 a perspective view of a component of a furnishing device according to the invention, wherein a frame body is still unassembled, Fig. 2 the in Fig. 1 marked Detail II in enlarged scale, which shows a corner area of the in Fig. 1 illustrated component of the furnishing item, Fig. 3 that in Fig. 1. Detail III, shown in enlarged scale, which depicts a different corner area of the component of the furnishing, Fig. 4 a cut through the in Fig. 1 shown component of the furnishing, Fig. 5 that in Fig. 4 marked detail V in enlarged scale, Fig. 6 a perspective partial view of a machining tool according to the invention for producing the plate of the illustrated component, and Fig. 7 a cut through the in Fig. 6 illustrated editing tools
[0039] A piece of furniture, only partially depicted in the figures, comprises several panels 1. One panel 1 is shown as an example in the Fig. Figures 1 to 5 illustrate this. The panels 1 of the furnishing, for example, have identical dimensions. However, they can also differ in their size, in particular length and / or width, with the thicknesses of the panels 1 preferably being identical. The thickness is preferably between 10 mm and 25 mm. According to Fig. Plate 1 is rectangular or square.
[0040] Each plate 1, when assembled, is surrounded and held by several, in this case four, frame bodies 2 that are compatible with the plate 1 to be held and are, for example, identical in design. However, the frame bodies 2 can also differ from one another, for example in their length.
[0041] The panels 1 are oriented parallel, perpendicular, and / or at an angle to each other within the furnishing. For example, they extend horizontally and form load-bearing panels. Panel 1 or other panels 1 run vertically and form, for example, cladding panels. The frame components 2 are oriented or arranged accordingly.
[0042] The plate 1 shown has a flat first main surface 3, which is oriented upwards here, and a flat second main surface 4, which is opposite the first main surface 3 and runs parallel to it. The second main surface 4 is oriented downwards here.
[0043] Plate 1 has four outer edge regions or side edge regions 5, which are identically designed or shaped. Adjacent outer edge regions 5 extend perpendicularly to each other and adjoin a respective outer edge of plate 1.
[0044] Plate 1 is symmetrical with respect to a first plane of symmetry, which extends parallel between two parallel outer edge regions 5 and perpendicular to the main surfaces 3 and 4. It is also symmetrical with respect to a second plane of symmetry, which extends perpendicular to the first plane of symmetry between the two other parallel outer edge regions 5 and perpendicular to the main surfaces 3 and 4. Plate 1 is furthermore symmetrical with respect to a third plane of symmetry, which runs parallel to and between the main surfaces 3 and 4.
[0045] Each outer edge area 5 has a continuous, outwardly open, straight, edge-side recess 6 ( Fig. 2) Each edge recess 6 is elongated and extends to corresponding corner areas 7 of the plate 1. Adjacent edge recesses 6 abut each other, for example, in the corner areas 7. In each corner area 7 there is a corner chamfer 7a that runs in one thickness direction of the plate 1.
[0046] Each edge recess 6 is spatially bounded by an edge surface or flank 8 of the plate 1, which faces laterally outwards. Each edge recess 6 is spatially bounded to the main surfaces 3, 4. The edge surfaces 8 of parallel outer edge areas 5 face away from each other.
[0047] Each edge surface 8 runs in cross-section perpendicular to a longitudinal direction or extension of the associated outer edge region 5 or adjacent outer edge in a circular arc and extends over an angular area between 30° and 180°, preferably between 45° and 160°, preferably between 60° and 120° ( Fig. 5).
[0048] Each outer edge area 5 or each edge recess 6 is concave. Each edge recess 6 has a linear central base 9, at which the respective edge recess 6 has its greatest depth. The depth of each edge recess 6 increases from the main surfaces 3, 4.
[0049] Furthermore, each outer edge region 5 has a first chamfer 10 and a second chamfer 11 ( Fig. 5) The chamfers 10, 11 of each outer edge region 5 overlap each other and run adjacent to the intermediate edge-side recess 6 of the corresponding outer edge region 5. They run straight and each forms a planar chamfer flank / surface. The first chamfer 10 extends adjacent to the first main surface 3 and at an angle to it. The second chamfer 11 extends adjacent to the second main surface 4 and at an angle to it. The chamfers 10, 11 of an outer edge region 5 face away from each other. In the area of the chamfers 10, 11, the thickness of the plate 1 decreases outwards. Adjacent first chamfers 10 each connect to an intermediate first corner-side chamfer 7a. Adjacent second chamfers 11 each connect to an intermediate second corner-side chamfer 7a.
[0050] Each frame body 2 extends straight and has a constant annular cross-section at least at a distance from its end faces. Each frame body 2 is tubular. In total, according to Fig. 1 four frame bodies 2 are present, which in the assembled state are in a direct or indirect, detachable connection with each other.
[0051] Each frame body 2, when assembled, extends adjacent to an outer edge region 5 of the plate 1 and engages laterally into the plate 1 or its edge-side recess 6, forming a (essentially) positive-locking connection, thus eliminating the need for separate retaining elements. Each frame body 2 projects perpendicularly from its longitudinal extent from the respective edge-side recess 6. The edge surface 8 and the adjacent frame body 2 are adapted to each other accordingly; in particular, they have (essentially) a corresponding cross-section and, when assembled, bear against each other at least partially, preferably over a surface, and especially firmly, resulting in a load-bearing connection between the frame body 2 and the plate 1. Fig. 5) This intervention ensures a good and secure, in particular play-free, fit of plate 1 in the frame.
[0052] Adjacent frame bodies 2 are connected to each other via connecting pieces, in particular detachably. How Fig. Figure 2 shows that a first connecting piece 12a is designed, for example, as an intermediate connecting piece that allows the connection of two frame bodies 2 that are aligned with each other. Furthermore, another frame body 2 can be connected perpendicular to these by means of the first connecting piece 12a. All of the frame bodies 2 extend in a common, here horizontal, plane.
[0053] How Fig. Figure 3 shows that a second connecting piece 12b is designed, for example, as a corner connector, which allows the connection of two frame bodies 2 that run perpendicular to each other. The frame bodies 2 extend in a common, here horizontal, plane. Furthermore, another frame body 2, which runs vertically, can be connected perpendicular to these by means of the second connecting piece 12b.
[0054] For connection, each connector 12a, 12b has an internal thread in its respective connection area. The connection between a connector 12a, 12b and a frame body 2 to be connected is made via a dowel assembly 29, which comprises an expansion sleeve and an expansion cone. A clamping screw passes through the expansion sleeve and is screwed into the expansion cone of the respective dowel assembly.
[0055] The dowel assembly 29 is then fixed in the connecting piece 12a, 12b. The frame body 2 to be connected is then slid over the fixed dowel assembly 29, in which the clamping screw is located. The clamping screw is then tightened, preferably using a tool, through a slot in the frame body 2 to be connected, whereby the expanding cone expands the expanding sleeve and the frame body 2 to be connected is held from the inside, as if by clamping.
[0056] When assembled, the frame bodies 2 form a frame that is three-dimensional and preferably has a base.
[0057] For the assembly of a plate 1, three frame bodies 2 are connected to each other in a U-shape by means of two connecting bodies 12a, 12b ( Fig. 1) The plate 1 is then inserted into the U-shape via its open side, moving towards a U-base, guided by the parallel frame bodies 2 and U-legs. The two frame bodies 2 and U-legs engage with the adjacent outer edge regions 5 of the plate 1. The plate 1 is inserted into the U-shape until it overlaps the frame body 2 forming the U-base, with its outer edge region 5 now extending beyond it.
[0058] Subsequently, another frame body 2 is connected to the previously free ends of the U-shaped legs via two further connecting pieces 12a, 12b, so that the plate 1 is surrounded on each side by a frame body 2 and the frame bodies 2 form a completely closed frame section. Each frame body 2 partially engages the edge of the plate 1.
[0059] The following refers to the Fig. 6, Fig. 7 a machining tool 13 as part of a machining device not shown for producing the plates 1 is described in more detail.
[0060] The machining tool 13 is designed as a milling tool, in particular a peripheral milling tool. It has a machining tool body 14, which is divided into three parts. The machining tool body 14 has two cover plates 15 and an intermediate element 16 arranged between them, in particular a plate-like element. The cover plates 15 extend parallel to and spaced apart from each other. In plan view, they have an identical basic shape and are essentially circular or annular. The cover plates 15 and the intermediate element 16 are connected to each other by screws 17, either fixedly or preferably detachably.
[0061] The machining tool body 14 has a central, cylindrical drive shaft receptacle 18 for receiving a rotatable drive shaft (not shown) of the machining device. The drive shaft receptacle 18 extends through the cover plates 15 and the intermediate element 16.
[0062] The machining tool 13 can be driven in a direction of rotation 19 about a rotary axis 20, which is determined by the drive shaft mount 18.
[0063] The machining tool body 14 carries several outer contour cutting elements 21 on its edge or circumferential side, as between 8 and 16, which are preferably identical and advantageously arranged angularly at uniform intervals around the axis of rotation 20. In particular, the intermediate element 16 carries the contour cutting elements 21.
[0064] Each contour cutting element 21 is made of carbide and is plate-like. Each contour cutting element 21 extends in a plane perpendicular to the cover plates 15 and spaced apart from the axis of rotation 20. Each contour cutting element 21 has a contour cutting area 22 that faces laterally outwards, i.e., away from the axis of rotation 20. Each contour cutting area 22 is curved in a circular arc, i.e., convexly. The contour cutting areas 22 are selected according to the edge recesses 6 to be produced, in particular the radius of the edge recesses 6 to be produced. They each form a free, curved contour cutting edge 22a, for example, a sharp-edged one, which leads the respective contour cutting element 21 in the direction of rotation 19.
[0065] The contour cutting elements 21 project laterally outwards, perpendicular to the axis of rotation 20, beyond the cover plates 15 and the intermediate element 16. They project laterally outwards on both sides of the intermediate element 16 in the direction of the axis of rotation 20 and engage from the inside into edge recesses 23 of the cover plates 15. The edge recesses 23 penetrate the respective cover plate 15 completely in the direction of the axis of rotation 20 and are open laterally and radially outwards, perpendicular to the axis of rotation 20. The recesses 23 of the cover plates 15 provided for a contour cutting element 21 are arranged without offset from each other in the direction of rotation 19. They are identically shaped and arranged. They overlap each other.
[0066] Each contour cutting element 21 has a rake face 30 on its front side, which leads in the direction of rotation 19. Each contour cutting element 21 preferably has an outwardly facing clearance surface adjacent to the contour cutting edge 22a, which faces away from the longitudinal center axis 20.
[0067] Each contour cutting element 21 is connected to an elongated hollow profile body 24, which extends in a curved manner around the axis of rotation 20 in certain areas and is supported by the intermediate element 16. In particular, each hollow profile body 24 is arranged to lag behind the adjacent contour cutting element 21 in the direction of rotation 19. Each hollow profile body 24 has a free outer flank 25, which is arc-shaped, in particular circular arc-shaped. Each contour cutting element 21 projects on both sides in the direction of the axis of rotation 20 relative to the adjacent hollow profile body 24 and laterally outwards perpendicular to the axis of rotation 20.
[0068] Between each hollow profile body 24 and a subsequent contour cutting element 21 there is a distance or gap in the direction of rotation 19.
[0069] The machining tool body 14 also carries several chamfer cutting elements 26 on its outer or circumferential side. These elements are made of carbide and are essentially plate-like or wedge-shaped. Each chamfer cutting element 26 extends in a plane that is perpendicular or oblique to the cover plates 15 and, for example, spaced apart from the axis of rotation 20. Each chamfer cutting element 26 has an outwardly facing chamfer cutting area 27, i.e., facing away from the axis of rotation 20. Each chamfer cutting element 26 forms a free, straight chamfer cutting edge 26a, which, for example, is sharp-edged and leads the respective chamfer cutting element 26 in the direction of rotation 19.
[0070] Each chamfer cutting element 26 has a rake surface 31 on its front side, which leads in the direction of rotation 19. Each chamfer cutting element 26 preferably has an outwardly facing clearance surface adjacent to the chamfer cutting edge 26a, which faces away from the longitudinal center axis 20.
[0071] First chamfer cutting elements 26 are arranged on one cover plate 15, while second chamfer cutting elements 26 are arranged on the other cover plate 15. The first chamfer cutting elements 26 arranged on one cover plate 15 are identical in design and orientation. The second chamfer cutting elements 26 arranged on the other cover plate 15 are also identical in design and orientation. The chamfer cutting areas 27 each run obliquely to the adjacent cover plate 15. The chamfer cutting elements 26 are arranged in pairs on the cover plates 15. The chamfer cutting elements 26 arranged adjacent to each other on the cover plates 15 are aligned with each other in the direction of rotation 19. Their chamfer cutting areas 27 each run from their opposite outer surfaces towards each other and in the direction of rotation 20.Each chamfer cutting area 27 forms an angle between 40° and 60° with a plane parallel to the adjacent cover plate 15.
[0072] The chamfer cutting elements 26 each project laterally outwards perpendicular to the axis of rotation 20 relative to an edge chamfer profile 28 on the respective cover plate 15. The chamfer profile 28 runs around the respective cover plate 15 and has (essentially) an inclination similar to the chamfer cutting areas 27 on this cover plate 15.
[0073] The chamfer cutting elements 26 also project on both sides towards the adjacent cover plate 15 or the chamfer profile 28 in the direction of the axis of rotation 20.
[0074] Adjacent to each contour cutting element 21, and adjacent to the concave profile body 24 that follows it, two chamfer cutting elements 26 are arranged, namely a first chamfer cutting element 26 and a second chamfer cutting element 26. In the direction of rotation 19, the chamfer cutting elements 26 are arranged downstream of the adjacent contour cutting elements 21. They are spaced apart from the adjacent contour cutting elements 21. The chamfer cutting elements 26 are each arranged at the edge of a recess 23 that lags behind the contour cutting element 21 in the direction of rotation 19. They each extend parallel or substantially parallel to the adjacent contour cutting element 21. Each contour cutting element 21 is arranged between the adjacent chamfer cutting elements 26 in the direction of the longitudinal center axis 20.
[0075] For the production of plate 1, a plate base (not shown) is used, which, for example, consists entirely of polyethylene terephthalate (PET) fibers and has a felt-like texture. The plate base already has (essentially) the basic shape or the desired basic dimensions of plate 1, which has been achieved, for example, by sawing.
[0076] The edge regions of the plate body are straight and extend perpendicular to the main surfaces of the plate body.
[0077] The base plate to be machined is fixed in a machining device.
[0078] The machining device carries the machining tool 13. The machining tool 13 is replaceable.
[0079] A drive shaft of the machining device engages in the drive shaft receptacle 18 of the machining tool 13 and is in a rotationally fixed connection with it. The drive shaft can be rotated by a motor. The machining tool 13 can thus also be rotated about its axis of rotation 20 in the direction of rotation 19.
[0080] The plate base body is displaceable perpendicular to the axis of rotation 20, as well as horizontally, in particular linearly guided.
[0081] To form an outer edge area 5 of the plate 1, the machining tool 13 is driven to rotate around the axis of rotation 20 in the direction of rotation 19.
[0082] The rotating machining tool 13 is then positioned with its circumferential area against the edge of the plate body. The contour cutting elements 21 and the chamfer cutting elements 26, with their contour cutting areas 22 and chamfer cutting areas 27 respectively, engage with the edge of the plate body, simultaneously creating the edge recess 6 and the two chamfers 10 and 11 on the plate body. The contour cutting elements 21 and the chamfer cutting elements 26 machine the plate body by cutting. The contour cutting elements 21 create the edge recess 6, while the chamfer cutting elements 26 create the chamfers 10 and 11. The contour and chamfer cutting elements 21 and 26 allow for a controlled and clean separation of the fibers from the plate body. This effectively prevents burning and sticking of the fibers and the processing tool 13.
[0083] The plate body is moved linearly relative to the machining tool 13 such that the edge recess 6 and the chamfers 10, 11 are produced continuously and uniformly over an entire side or edge of the plate body. The plate body's movement path is parallel to the cover plates 15. For example, the plate body is machined with a feed in a counter-rotating motion. The described process is repeated accordingly for each side or edge of the plate body.
[0084] Then the corner areas 7 of the plate body are chamfered, forming corner chamfers 7a.
[0085] The rotational speed of the machining tool 13, for example, is between 4,000 revolutions per minute and 8,000 revolutions per minute.
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