Wood panel and methods for manufacturing a wood panel

Abstract

A wooden panel (1) for furniture or interior doors comprises several planar wooden components (101, 102,..., 10M). Each planar wooden component (10G), G = 1,..., M, has a length (L), a width (B), and a thickness (D), defines a first visible surface (11) and a second visible surface (12), and has at least one connecting element (2) along the length (L) of the planar wooden component (10G), which interacts positively with another connecting element (2) of a subsequent planar wooden component (10G+1). A receptacle (4) is defined by the interaction of the connecting elements (2) of two successive wooden components (10G, 10G+1) of the wooden panel (1). A wedge (6) and another wedge (7) are inserted into the receptacle (4) of the wooden panel (1) to brace the two successive wooden components (10G, 10G+1) against each other in the direction of the second width (B2) of the second visible surfaces (12) of two successive wooden components (10G, 10G+1).A method for manufacturing such a wooden panel (1) for furniture or interior doors is also disclosed.

Description

The invention relates to a wooden panel. In particular, the wooden panel is used for the manufacture of furniture or interior doors. The wooden panel comprises several flat wooden components, each having a length, a width, and a thickness. Each wooden component defines a first visible surface and a second visible surface. Furthermore, each flat wooden component has a connecting element along its length, which interacts positively with another connecting element of a subsequent flat wooden component. Furthermore, the invention relates to a method for manufacturing a wooden panel. Background of the invention The European patent application EP 3 243 995 A1 relates to a wood system in which the center strips (wooden components) can be connected to each other to form a larger element (wooden panel) using click elements. German patent application DE 195 06 379 A1 relates to a dowel joint for the glueless connection of particleboard. The dowel used has a cross-sectional area where one axis is larger than the other. The dowel has an oval cross-sectional area, thus exerting high pressing forces in the particleboard along its longitudinal axis. German patent application DE 10 2011 122 697 A1 relates to a solid wood tenon joint for furniture components. For this purpose, a tenon is formed on a first wooden component, which fits into a corresponding recess in a second wooden component. The tenon is conical, so that it locks securely into the recess of the second wooden component. German utility model DE 20 2016 102 450 U1 defines a glue-free solid wood construction. All individual wall components are connected to each other without glue using wooden dowels, for example made of oak. German patent application DE 10 2011 057 018 A1 relates to a glueless carcass for a piece of furniture. The wall elements are connected to each other at their end faces by means of coupling elements. A tongue and groove extends along each end face, which can be engaged with each other when the wall elements are connected. European patent application EP 1 671 562 A1 relates to furniture components with connecting elements. A piece of furniture is assembled from several furniture components. A dry, self-locking tongue and groove joint is provided for this purpose. Brief description of the invention The object of the invention is to provide a wooden panel for furniture or doors, in particular interior doors, which consists of several wooden components connected without glue and has the required mechanical stability. This problem is solved by a wooden panel comprising the features of claim 1. In one embodiment of the wood panel according to the invention, the wood panel for furniture or interior doors comprises several flat wooden components. Each flat wooden component has a length, a width, and a thickness, defines a first visible surface and a second visible surface, and has at least one connecting element formed along the length of the flat wooden component, which interacts positively with another connecting element of a subsequent flat wooden component. According to the invention, the mounting of the wooden panel is defined by the interaction of the connecting elements of two successive wooden components. A wedge and a further wedge are inserted into the mounting of the wooden panel to clamp the two successive wooden components against each other in the direction of a second width of the second visible surfaces of the two successive wooden components. The advantage is that the connecting elements of directly adjacent wooden components define a common recess into which the mechanically clamping wedges are inserted. In this way, two wooden components can be joined without glue, and the glueless connection is mechanically stable. In one embodiment of the wood panel according to the invention, each connecting element of the wooden components has a groove and a tongue. The tongue of the connecting element of one wooden component engages in the groove of the connecting element of a subsequent wooden component. The tongue of the connecting element of the subsequent wooden component engages in the groove of the connecting element of the first wooden component. The advantage is that the interlocking tongue and groove of two adjacent wooden components creates a recess, so that the wedges inserted into the recess ensure a positive and force-fit connection between the individual wooden components. In this way, two wooden components can still be joined without glue, and the glue-free connection is even more mechanically stable. According to a preferred embodiment, the tongue and groove of each connecting element of the wooden components have the same thickness. According to a further preferred embodiment, the groove of each connecting element is spaced from the first visible surface or the second visible surface of the wooden component by a projection. The tongue of each connecting element is spaced from the first visible surface or the second visible surface of the wooden component by a step. According to another preferred embodiment, the projection and step of each connecting element of the wooden components have the same thickness. According to a further preferred embodiment, a free end of the spring of each connecting element is rounded on both sides. A free end of the projection of each connecting element has a rounded edge that is offset from the first visible surface or the second visible surface. According to a further preferred embodiment, an end face of the free end of the projection defines an angle greater than 90° with respect to the first visible surface or the second visible surface. This angle greater than 90° is advantageous because the assembled and positively and force-fit connected wooden components result in a wooden panel that forms at least one uniform outer surface. The boundaries of the wooden components are not perceptible to the touch due to this at least one uniform outer surface. According to a preferred embodiment, the angle is at least 91°. In one embodiment, the connecting elements of the wooden components for mounting the wooden panel are identical. The connecting element from one wooden component to the next is preferably rotated by 180°. The wooden panel can be used to manufacture a piece of furniture or a door, especially an interior door. The piece of furniture or the door consists, or at least partially consists, of the wooden panel. Another object of the invention is to provide a method for producing a wooden panel for furniture or doors, in particular interior doors, in the production of which no glue or other adhesive is required, wherein the wooden panel nevertheless possesses the mechanical stability required for the production of furniture or doors or interior doors. This problem is solved by a method for manufacturing a wooden panel comprising the features of claim 12. After the process is carried out, the wooden panel for furniture or (interior) doors consists of several flat wooden components, each with a length, a width, and a thickness. Each wooden component defines a first visible surface (outer surface) and a second visible surface (outer surface) and has at least one connecting element along the (first) flat wooden component that interlocks with another connecting element of a second flat wooden component. The production of the wooden panel comprises several steps. First, at least one connecting element is milled along the length of the (first) flat wooden component, forming a groove, a tongue, and a recess in the tongue. Then, the connecting element of the (first) flat wooden component is joined to the connecting element of another (second) flat wooden component.The connecting element, which is to be joined to the connecting element of the second wooden component, is designed rotated 180° relative to the first wooden component. The connecting element of the first wooden component, which is joined to the connecting element of the second wooden component, defines a common receptacle through the two recesses in the tongues of each of the two wooden components. A first wedge and a second wedge are then inserted into this receptacle from opposite directions. The wedges, fully inserted into the receptacle, clamp the two successive wooden components against each other, thus creating a force-fit and form-fit connection between them. In one embodiment of the method, the tongue and groove of each connecting element of the wooden components are formed with the same thickness. In one embodiment of the method, the groove of each connecting element is spaced from the second visible surface (outer surface) of the connecting element by a projection, and the tongue of each connecting element is spaced from the first visible surface (outer surface) of the connecting element by a step. The projection and the step of each connecting element of the wooden components have the same thickness. In one embodiment of the method, the thicknesses of the springs, grooves, projections and steps are uniform. In one embodiment of the method, a free end of the spring of each connecting element is rounded on both sides, and a rounding of a free end of the projection of each connecting element, which is opposed by the second visible surface, is formed. In one embodiment of the method, an end face of the free end of the projection is formed with an angle of at least greater than 91° in relation to the second visible surface. In one embodiment of the method, the connecting element of the subsequent (second) wooden component is shaped identically to the connecting element of the (first) wooden component and rotated by 180° in relation to the connecting element of the (first) wooden component. Brief description of the drawings The invention and its advantages are described in more detail below with reference to the accompanying schematic drawings. Fig. 1 shows a perspective view of a wooden component for constructing a wooden panel according to the invention. Fig. 2 shows a sectional view of the wooden component along section line AA from Fig. 1. Fig. 3 shows a perspective view of a wooden component for constructing a wooden panel according to the invention, in which the first and second wedges are associated with the wooden component. Fig. 4 shows a sectional view of the wooden component along section line AA from Fig. 3. Fig. 5 shows two assembled wooden components for forming an embodiment of the wooden panel according to the invention. Fig. 6 shows the two assembled wooden components from Fig. 5, in which the wedges are inserted into the recess to form the wooden panel. Fig. 7 shows an enlarged view of an embodiment of the end of the connecting element.Figure 8 shows a further enlarged view of the free end of the spring and the free end of the projection of the connecting element from Figure 7 for a wooden panel consisting of more than two wooden components, wherein the individual wooden components are connected to each other by positive and non-positive locking. Figure 9 shows a schematic representation of an embodiment of the wooden panel according to the invention. Detailed description of the drawings The following exemplary embodiments of the invention and its advantages will be explained in more detail with reference to the accompanying figures. The proportions in the figures do not always correspond to the actual proportions, as some shapes are simplified and others are enlarged in relation to other elements for better illustration. Fig. 1 shows a perspective view of a wooden component 101 for the construction of a wooden panel 1 according to the invention (see Fig. 9), and Fig. 2 shows a sectional view of the wooden component 101 along the section line AA from Fig. 1. The wooden component 101 has a width B and defines a first visible surface 11 and a second visible surface 12 along its length L, each defined by a first width B1 and a second width B2, respectively, and the length L. All wooden components 101, 102,..., 10M have the same thickness D for the construction of the wooden panel 1. Furthermore, the wooden component 101 defines a first end 21 and a second end 22. In the embodiment shown in Fig. 1 and Fig. 2, the wooden component 101 has a connecting element 2 formed at its first end 21. The connecting element 2 comprises a groove 3 and a tongue 5, wherein the groove 3 has a recess 20 formed in the tongue 5. The connecting element 2 extends along the length L of the wooden component 101. Fig. 3 shows a perspective view of the wooden component 101 from Fig. 1 for the construction of a wooden panel 1 according to the invention (see Fig. 6), in which a wedge 6 and a further wedge 7 of the flat wooden component 101 are seated in the recess 20 and illustrate the function of the recess 20 in the tongue 5. The wedge 6 and the further wedge 7 are inserted into the recess 20 (or receptacle 4, see Fig. 6) from opposite directions along the length L. Fig. 4 shows a sectional view of the wooden component 101 along the section line AA from Fig. 3. The wedge 6 and the further wedge 7 lie against the sides 23 of the recess 20 and clamp the two successive wooden components 101 and 102 (see Fig. 5) in the direction of the second width B2 of the second visible surfaces (12) of the two successive wooden components 101 and 102 against each other. Fig. 5 shows two joined wooden components 101 and 102 forming an embodiment of the wooden panel 1 according to the invention, and Fig. 6 shows the two joined wooden components 101 and 102 from Fig. 5, in which the wedge 6 and the further wedge 7 are inserted into the receptacle 4 to form the wooden panel 1 and to force-fit the two wooden components 101 and 102 together. In the representation shown in Figs. 5 and 6, the wooden panel 1 consists of the two wooden components 101 and 102. This embodiment of the wooden panel 1 serves only to describe the invention and is in no way to be understood as a limitation. If the wooden panel 1 consists of the first and second wooden components 101 and 102, the first wooden component 101 only has the connecting element 2 at its second end 22 (the first end 21 of the first wooden component 101 does not carry a connecting element 2 because no further wooden component is connected in front of it).Consequently, the first end 21 of the second wooden component 102 has formed the connecting element 2 (the second end 22 of the second wooden component 102 does not carry a connecting element 2 because no further wooden component 10 is connected behind it). Only between two interconnected wooden components 10G and 10G+1 in a wooden panel 1 does each of the two wooden components 10G and 10G+1 form a connecting element 2 to each other. As can be seen in Fig. 5, the joining of the connecting element 2 of the first wooden component 101 and the connecting element 2 of the second wooden component 102 results in the receptacle 4. The receptacle 4 is defined by the recess 20 in the tongue 5 of the connecting element 2 of the first flat wooden component 101 and the recess 20 in the tongue 5 of the connecting element 2 of the second flat wooden component 102. The wedge 6 and the further wedge 7 are inserted into the receptacle 4 from opposite directions. Fig. 7 shows an enlarged view of a possible embodiment of the design of the end 21, 22 of the connecting element 2 of the wooden component 101, 102,..., 10M for the construction of a wooden panel 1. The connecting element 2 consists, along its thickness D, of the step 9, the tongue 5, the groove 3, and the projection 8. The step 9 has a thickness DS, the tongue 5 has a thickness DF, the groove 3 has a thickness DN, and the projection 8 has a thickness DV. Fig. 7 shows a particular embodiment. The thicknesses DS, DF, DN, and DV are all equal and, in sum, correspond to the thickness D of the connecting element 2. Fig. 8 shows a further enlarged view of the free end 15 of the spring 5 and the free end 18 of the projection 8 of the connecting element 2 from Fig. 7. The step 9 of each connecting element 2 is angular towards the first visible surface 11 and angular towards the spring 5. The free end 15 of the spring 5 of each connecting element 2 is rounded on both sides. The free end 18 of the projection 8 of each connecting element 2 has a rounded section 13 that meets the second visible surface 12, and the projection 8 terminates at the second visible surface 12 with a corner 14. Furthermore, an end face 19 of the free end 18 of the projection 8 is inclined at an angle α greater than 90° with respect to the second visible surface 12. Preferably, the angle α is at least 91°. Fig. 9 shows a schematic representation of an embodiment of the wooden panel 1 according to the invention, which is formed from more than two wooden components 101, 102, 103, 104 and 105. The individual wooden components 101, 102, 103, 104 and 105 are connected to each other in a form-fit and force-fit manner. As already mentioned in the description of Figures 5 and 6, the connection of the first wooden component 101 and the second wooden component 102 to form the wooden panel 1 according to the invention is not to be considered a limitation. According to the principles of the invention, several wooden components 101, 102, ..., 10M can be joined together to form a wooden panel 1. By way of example, five wooden components 101, 102, 103, 104, and 105 are joined together to form a wooden panel 1 in Figure 9. Analogous to the embodiment shown in Figures 5 and 6, the first wooden component 101 has the connecting element 2 only at its second end 22 (the first end 21 of the first wooden component 101, on the other hand, does not have a connecting element 2 because no further wooden component is attached to it).Similarly, the first end 21 of the fifth wooden component 105 has a connecting element 2 formed (the second end 22 of the fifth wooden component 105, however, does not have a connecting element 2 because no further wooden component 10 is connected behind it). The second wooden component 102, third wooden component 103, and fourth wooden component 104, each positioned between the first wooden component 101 and the fifth wooden component 105, each have a connecting element 2 at both their respective first end 21 and their respective second end 22. The multiple connecting elements 2 arranged accordingly, their interlocking, and their functional interaction with the respective wedges 6 and 7 create the mechanically stable wooden panel 1. The connecting elements 2 at the first end 21 and at the second end 22 of the wooden components 102, 103, or 104 are identical in their design. Reference is made to the second wooden component 102 as an example. The connecting element 2 at the first end 21 of the second wooden component 102 is rotated 180° relative to the connecting element 2 at the second end 22 of the second wooden component 102. The spring 5 of the connecting element 2 of the wooden component 10G engages in the groove 3 of the connecting element 2 of the subsequent wooden component 10G+1, and the spring 5 of the connecting element 2 of the subsequent wooden component 10G+1 engages in the groove 3 of the connecting element 2 of the wooden component 10Gein. It is assumed that the present disclosure and many of the advantages mentioned therein will be understood from the preceding description. It is obvious that various modifications in the shape, construction, and arrangement of the components can be made without deviating from the disclosed subject matter. The described embodiments are merely explanatory, and it is understood that the appended claims encompass and include such modifications. Reference symbol list 1 Wooden panel 2 Connecting element 3 Groove 4 Receptacle 5 Tongue 6 Wedge 7 Further wedge 8 Projection 9 Step 101, 102,..., 10 Surface wooden component 11 First visible surface, first outer surface 12 Second visible surface, second outer surface 13 Rounding 14 Corner 15 Free end 18 Free end 19 End face 20 Recess 21 First end of the wooden component 22 Second end of the wooden component 23 Side AA Section line B Width of the wooden component B1 First width of the first visible surface or first outer surface B2 Second width of the second visible surface or second outer surface D Thickness of the connecting element DF Thickness of the tongue DND Thickness of the groove DVD Thickness of the projection DS Thickness of the step L Length α Angle QUOTES INCLUDED IN THE DESCRIPTION This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature EP 3 243 995 A1

[0003] DE 195 06 379 A1

[0004] DE 10 2011 122 697 A1

[0005] DE 20 2016 102 450 U1

[0006] DE 10 2011 057 018 A1

[0007] EP 1 671 562 A1

[0008]

Claims

A wooden panel (1) for furniture or interior doors, comprising several planar wooden components (101, 102,..., 10M), wherein each planar wooden component (10G), G = 1,..., M, has a length (L), a width (B) and a thickness (D), defines a first visible surface (11) and a second visible surface (12) and has at least one connecting element (2) along the length (L) of the planar wooden component (10G) which interacts positively with another connecting element (2) of a subsequent planar wooden component (10G+1); characterized by a receptacle (4) which is defined by the interaction of the connecting elements (2) of two successive wooden components (10G, 10G+1) of the wooden panel (1); and a wedge (6) and another wedge (7) which are inserted into the receptacle (4) of the wooden panel (1) to brace the two successive wooden components (10G, 10G+1) against each other in the direction of the width (B) of two successive wooden components (10G, 10G+1). The wooden panel (1) according to claim 1, wherein each connecting element (2) of the wooden components (101, 102,..., 10M) has a groove (3) and a tongue (5), wherein the tongue (5) of the connecting element (2) of the wooden component (10G) engages in the groove (3) of the connecting element (2) of the subsequent wooden component (10G+1) and the tongue (5) of the connecting element (2) of the subsequent wooden component (10G+1) engages in the groove (3) of the connecting element (2) of the wooden component (10G). The wooden panel (1) according to claim 2, wherein the thickness (DF) of the tongue (5) and the thickness (DN) of the groove (3) of each connecting element (2) of the wooden components (101, 102,..., 10M) are equal. The wooden panel (1) according to claim 2, wherein the groove (3) of each connecting element (2) is spaced apart from the first visible surface (11) or the second visible surface (12) of the wooden component (101, 102,..., 10M) by a projection (8) and the tongue (5) of each connecting element (2) is spaced apart from the first visible surface (11) or the second visible surface (12) of the wooden component (101, 102,..., 10M) by a step (9). The wooden panel (1) according to 4, wherein the thickness (DV) of the projection (8) and the thickness (DS) of the step (9) of each connecting element (2) of the wooden components (101, 102,..., 10M) are equal. The wood panel (1) according to any one of claims 3 to 5, wherein the thicknesses (DF), (DN), (DV) and (DS) are all the same. The wooden panel (1) according to one of claims 2 to 6, wherein a free end (15) of the spring (5) of each connecting element (2) is rounded on both sides and a free end (18) of the projection (8) of each connecting element (2) has formed a rounding (13) which is opposed by the first visible surface (11) or the second visible surface (12). The wooden panel (1) according to claim 7, wherein an end face (19) of the free end (18) of the projection (8) defines an angle (α) greater than 90° with respect to the first visible surface (11) or the second visible surface (12). The wooden panel (1) according to claim 8, wherein the angle (α) is at least 91°. The wooden panel (1) according to one of the preceding claims, wherein the connecting element (2) of the wooden component (10G) is shaped identically to the connecting element (2) of the other wooden component (10G+1) and is rotated by 180° with respect to the connecting element (2) of the wooden component (10G+1). A piece of furniture or a door which consists at least partially of a wooden panel (1) designed according to one of the preceding claims. A method for manufacturing a wood panel (1) for furniture or interior doors, comprising several planar wood components (101, 102,..., 10M), wherein each planar wood component (101, 102,..., 10M) has a length (L), a width (B) and a thickness (D), defines a first visible surface (11) and a second visible surface (12) and has formed at least one connecting element (2) along the planar wood component (10G) which engages positively with another connecting element (2) of another planar wood component (10G+1), comprising the following steps: milling at least one connecting element (2) along the length (L) of the planar wood component (101, 102,..., 10M) and thereby forming a groove (3), a tongue (5) and a recess (20) in the tongue (5); connecting the connecting element (2) of the planar wooden component (10G) with the connecting element (2) of another wooden component (10G+1), wherein the connecting element (2) of the other wooden component (10G+1) is formed rotated by 180° relative to the connecting element (2) of the wooden component (10G); joining the connecting element (2) of the wooden component (10G) with the connecting element (2) of the other wooden component (10G+1), wherein a receptacle (4) is formed by the two recesses (20) in the two tongues (5); and inserting a first wedge (6) and a further wedge (7) against each other into the receptacle (4) to clamp the two successive wooden components (10G) and (10G+1) against each other, so that a force and form interlock is created. Method according to claim 12, wherein the tongue (5) and the groove (3) of each connecting element (2) of the wooden components (10) are formed with the same thickness (DF) and (DN), respectively. The method according to one of claims 12 to 13, wherein the groove (3) of each connecting element (2) is spaced apart from the second visible surface (12) of the connecting element (2) by a projection (8) and the tongue (5) of each connecting element (2) is spaced apart from the first visible surface (11) of the connecting element (2) by a step (9), wherein the projection (8) and the step (9) of each connecting element (2) of the wooden components (101, 102,..., 10M) have the same thickness (DV) and (DS), respectively. The method according to one of claims 12 to 14, wherein the thicknesses (DF), (DN), (DV) and (DS) are formed identically. The method according to one of claims 12 to 15, wherein a free end (15) of the spring (5) of each connecting element (2) is formed rounded on both sides and a rounding (13) of a free end (18) of the projection (8) of each connecting element (2) is formed which is opposed by the second visible surface (12). The method according to claim 16, wherein an end face (19) of the free end (18) of the projection (8) is formed with an angle (α) of at least greater than 91° in relation to the second visible surface (12). The method according to one of claims 12 to 17, wherein the connecting element (2) of the subsequent wooden component (10G+1) is shaped identically to the connecting element (2) of the wooden component (10G) and is rotated by 180° in relation to the connecting element (2) of the wooden component (10G).

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