JP2017081030A - Decorative laminate and production method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decorative laminate which can be easily constructed and which has an inclined plane on one side face.SOLUTION: A decorative laminate 10 is configured so that, a single decorative sheet 21 is stuck in a turned U-shape, from a surface 22a of a substrate 22 in which a recess part 15 and a salient part 16 are formed to face each other on a lower side of longitudinal side faces 22c, to both longitudinal side faces 22c, then, while leaving the decorative sheet 21 stuck to the surface, almost whole thickness of the substrate 22 with the decorative sheet 21 stuck to the longitudinal side faces 22c, is cut along a short direction, from a rear face 22d side, for forming V-grooves 24 in the vicinity of an end of a short side face 22b, then the V-grooves 24 are closed, therefore an inclined plane is formed between the surface and the short side face. Then, the decorative laminates 10 are jointed through fitting of the recess part 15 and the salient part 16, in the longitudinal direction, and in the fitting state, the decorative laminates 10 can be deviated in a lateral direction, and no gap or overlap is generated on joints 19, 20 of the decorative sheet 21 on the longitudinal side faces of the decorative laminates 10.SELECTED DRAWING: Figure 2

Description

The present invention relates to a decorative board obtained by attaching a decorative sheet to a base material and a method for producing the same.

A decorative board in which a decorative sheet is attached to a base material is widely used for interior materials and furniture of a house, and when the product is required to have a shape as shown in FIG. There is. That is, this product has a generally rectangular cross-sectional shape, but an inclined surface 2 is formed between the surface 1 and the side surface 3 extending in the short direction, and the surface 1, the inclined surface 2, the short side surface 3 and A decorative sheet 6 (the portion covering the surface 1 is 6a, the portion covering the inclined surface 2 is 6b, the portion covering the short side surface 3 is 6c, and the portion covering the long side surface 4 is 6d) is adhered to the long side surface 4. ing. In some cases, a decorative sheet is also attached to a part or the entire surface of the back surface 5. The inclined surface 2 may be formed at both ends in the longitudinal direction or may be formed only at one end. Such products are used as wall materials and counter materials for houses.

When it is going to manufacture the decorative board 9 of a shape as shown in FIG. 8, the method of sticking a decorative sheet with respect to the base material shape | molded in the shape similar to a final product is normally employ | adopted. Specifically, after the decorative sheet 6 having a width substantially the same as the length in the short direction is pasted from the front surface 1 through the inclined surface 2 to the short side surface 3 (or in some cases up to the back surface 5), Another decorative sheet 6 ′ cut in accordance with the shape of the side surface 4 is attached to the long side surface 4, or the decorative sheet 6 having a width dimension that covers both the long side surfaces 4 is separated from the surface 1 to the inclined surface 2. After being attached to the short side surface 3 through (or up to the back surface 5 in some cases), the portion bent along the short side surface 3 or the long side surface 4 is appropriately cut and attached.

However, according to the former method, in addition to the decorative sheet 6 that covers the surface 1, the inclined surface 2, and the short side surface 3, a decorative sheet 6 'that covers the long side surface 4 is prepared and stuck in a separate process. In other words, the manufacturing efficiency is reduced and the cost is increased. In addition, since the joints of the decorative sheets 6 and 6 ′ appear along the edge on the surface side where a part of the body or an object is easily hit (the corner portion formed by the surface 1 and the long side surface 4), At the joint of the decorative sheet, the decorative sheets 6 and 6 'may be wrinkled or peeled off to expose the base material, thereby impairing the appearance.

According to the latter method, such a drawback is avoided, but it is difficult to cut an excessive portion while sticking the decorative sheet 5 on the longitudinal side surface 4 to form an accurate seam. The base material is exposed at the joint portion, and if the cut is not sufficient, the end portions of the decorative sheet after the cut overlap, so that only that portion becomes thick, and in any case, the appearance is impaired.

In Patent Documents 1 and 2, a V-groove is formed from the back surface side after a decorative sheet is pasted over the surface and at least one side surface of a base material (core material) whose four side surfaces are perpendicular to the front and back surfaces. It is described that a decorative sheet in which a decorative sheet is continuously applied from the surface to the one side surface is produced by bending the base material so as to be closed and joining the V groove side surfaces to each other. In any case, it is not possible to produce a decorative board having a shape as shown in FIG.

In addition, when the decorative board having a shape as shown in FIG. 8 is used as a wall material to be constructed on a wall base while the short side surfaces 3 and 3 are vertically butted and the long side surfaces 4 and 4 are horizontally butted, Although it may be required to give a tile-like or block-like appearance by shifting the decorative plates adjacent to each other in the horizontal direction, as shown in FIG. In this case, when shifting in the horizontal direction, the vertical displacement is likely to occur, and it has to be carefully constructed.

JP 2008-006753 A JP2013-146868A

The problem to be solved by the present invention is to provide a decorative board having a novel shape capable of eliminating the disadvantages as described above, and to provide a novel method capable of producing the decorative board in an attractive and efficient manner. Is to provide.

In order to solve this problem, the invention according to claim 1 of the present application includes a front surface and a back surface, a pair of first side surfaces extending in the first direction, and a second direction orthogonal to the first direction. A pair of second side surfaces and an inclined surface formed between the surface and at least one first side surface, and a recess is formed below one second side surface and the other second side surface. A decorative plate comprising a base material having a convex part that can be fitted into the concave part below and a single decorative sheet adhered to the entire surface excluding the concave part and convex part of the base material. The two adjacent decorative plates can be connected to each other in the first direction through the fitting between the concave portion and the convex portion, and can be slid in the second direction in this fitted state. It is characterized by.

The invention according to claim 2 of the present application is the decorative board according to claim 1, wherein the base material is a substantially plate-like base material main part and at least one end side in the second direction of the base material main part. The base end is joined to the two side surfaces and the bottom surface thereof is located on the top surface of the convex portion and the concave portion and the base end portion located flush with or above the base portion. The first portion includes a first surface joined to the end surface of the base material main portion, a second surface providing the inclined surface, and a third surface joined to the second portion. And the second portion includes a first surface joined to the third surface of the first portion, a second surface that provides the short side surface, and a second surface that provides at least a part of the bottom surface of the substrate end. It has three sides.

The invention according to claim 3 of the present application is the decorative board according to claim 1, wherein the base material is substantially plate-like and has a notch formed on the back side of at least one end in the second direction. The main portion and the end portion on the notch forming side in the second direction of the base material main portion are joined flush with the second side surface and the bottom surface thereof is flush with or above the top surfaces of the convex portion and the concave portion. The substrate end portion is formed of a first portion and a second portion, and the first portion includes a vertical surface joined to the vertical end surface of the substrate main portion. The outer portion is formed into a right-angled triangular section having an inclined surface for providing the inclined surface and a lower surface joined to the upper surface of the second portion, and the second portion is joined to the lower surface of the first portion And an inner end surface joined to the side surface of the notch Characterized the outer end face appearing as the first aspect, to be formed in a plate shape having a bottom surface appearing as a bottom surface of the substrate end.

The invention according to claim 4 of the present application has front and back surfaces, a first side surface extending in a first direction, and another pair of second side surfaces extending in a second direction orthogonal to the first direction. A step (1) of preparing a plate-like base material, and a convex portion having a shape capable of being fitted into the concave portion below the other second side surface while forming a concave portion below the second side surface of the base material. A step (2), a step (3) of sticking a single decorative sheet so as to continuously cover the entire surface of the base material and the pair of second side surfaces, and at least one of the first side surfaces Near the edge, from the back side, while leaving the decorative sheet attached to the surface, cut the entire thickness of the base material along the first direction together with the decorative sheet attached to the second side surface, inside Forming a first V groove having an angle α (α <90 degrees) and a second V groove having an angle β (β <90 degrees) near the end; The first and second V-grooves are closed, and the first part formed between the first and second V-grooves and the second part remaining at the end from the second V-groove are joined. And by joining the base material edge part which consists of these 1st and 2nd parts to a base material main part, it is with respect to the surface between the vertex of the 1st V groove, and the vertex of the 2nd V groove. And (5) obtaining a decorative board having an inclined surface inclined at an angle α and a first side surface further inclined at an angle β with respect to the inclined surface between the apex and end of the second V-groove. It is a manufacturing method of a decorative board characterized by having. Step (2) may be performed after step (3) or after steps (3) to (4) or after steps (3) to (5).

The invention according to claim 5 of the present application is the method for manufacturing a decorative board according to claim 4, wherein in the step (4), the first and second V grooves are formed so that α + β = 90 degrees. And

The invention according to claim 6 of the present application is the method for manufacturing a decorative board according to claim 4 or 5, wherein in step (5), the first and second V-grooves are closed to close the first and second parts. And the back surface of the base material end is flush with the top surfaces of the concave and convex portions or the same. In the step (4), the first and second V grooves are formed so as to be positioned further upward, and the back surface side of the base material is partially cut away.

The invention according to claim 7 of the present application is the method for manufacturing a decorative board according to claim 6, wherein at least before the step (5) is performed, a notch is formed on the back surface side of at least one end in the second direction of the base material. Forming (6), wherein in step (5) the first and second V-grooves are closed to join the first part and the second part and from the first and second parts The base material end portion is joined to the base material main portion, and the tip portion of the second portion is accommodated in the notch and joined to the upper surface and the side surface of the notch.

According to the first aspect of the present invention, in the decorative board having the shape as shown in FIG. 8, since the single decorative board is continuously adhered to the entire surface except the back surface, the decorative decorative board having a good appearance is provided. Can be provided.

Further, in this decorative board, a concave portion is formed on one of the second side surfaces (for example, the longitudinal side surface) of the base material, and a convex portion having a shape that can be fitted to the concave portion is formed on the other side. Not only can the work of connecting the decorative plates in the first direction (for example, the short direction) be performed easily, but also the slide can be slid in the second direction (for example, the longitudinal direction) in this fitted state. . Therefore, for example, when this decorative board is used as a wall material to be constructed on a wall base while vertically abutting the first side surfaces and horizontally abutting the second side surfaces, the makeup is applied through the fitting of the concave portion and the convex portion. Not only can the plates be adjacent to each other vertically, but the wall construction that gives a tile-like or block-like appearance can be easily performed by shifting the decorative plates laterally while maintaining this fitted state.

According to the invention which concerns on Claim 2, the base material edge part which has an inclined surface is formed by joining of a 1st part and a 2nd part, and this base material edge part is joined to a base material main part. Since it has at least two joining surfaces, a strong substrate end can be obtained. Therefore, even when the decorative board is transported or constructed, even if the end of the base material hits a wall or floor, it is difficult to be damaged. In addition, since the joint line that appears on the longitudinal side surface of the decorative board and the joint of the decorative sheet coincide with each other, the decorative sheet follows the base sheet even when the base material is deformed due to moisture absorption or the like. Deforms and does not greatly damage the aesthetics.

According to the invention which concerns on Claim 3, since a part of 2nd part is joined in the state fitted in the notch of the base-material main part, the decorative board which has a base-material edge part with larger intensity | strength Can be provided.

According to the fourth aspect of the present invention, a single decorative sheet may be arranged in a U-shape so as to cover the surface of the base material and the pair of second side surfaces, and adhered to each surface. The sticking operation can be easily performed. When the decorative sheet adhered to the surface of the base material is the final product by forming the inclined surface and the first side surface by closing the first and second V-grooves and joining the base material parts after cutting. In addition, the sheet is left as it is as a decorative sheet covering the first side surface from the surface through the inclined surface. Furthermore, the V-groove forming operation from the back side is also easy, whereby unnecessary portions of the decorative sheet attached to the second side surface are also cut off together with the base material, so that the first and second V-grooves When the base material parts after cutting are joined together by closing the cut, the joints between the cut-out decorative sheets will appear exactly on the second side without gaps and without overlapping, which may impair the beauty. Absent. In this way, a decorative board having a shape as shown in FIG. Further, the decorative plates can be connected to each other in the first direction (for example, the short direction) by fitting the concave and convex portions of the base material, and a decorative plate having excellent strength can be efficiently manufactured. .

According to the invention which concerns on Claim 5, the 1st side surface obtained when the 1st and 2nd V groove is closed and the base-material parts after cutting can be joined can be formed perpendicularly | vertically with respect to the surface. In addition, the angle of inclination of the inclined surface can be freely set by appropriately selecting α at α + β = 90 degrees.

According to the invention of claim 6, a decorative plate is obtained in which the back surface of the base end is positioned flush with or above the top surfaces of the concave and convex portions, so that the concave and convex portions of the base material are fitted. Thus, a decorative plate that can be slidably moved in the second direction (for example, the longitudinal direction) in a state where the decorative plates are connected in the first direction (for example, the short direction) can be efficiently manufactured. Such a decorative board, for example, can be suitably used as a wall material that is constructed on a wall substrate while vertically abutting the first side surfaces and horizontally abutting the second side surfaces. The wall surface construction that gives a tile-like or block-like appearance can be easily performed by shifting the horizontal direction.

According to the invention of claim 7, in addition to the effect of the invention of claim 6, a part of the second part is joined in a state of being fitted in the notch of the base material main part. Thus, it is possible to obtain an end portion of the base material having higher strength.

It is the perspective view of the decorative board by one Embodiment of this invention, (a) is the perspective view seen from the base-material recessed part side, (b) is the perspective view seen from the base-material convex part side. It is a figure which shows the manufacturing method of this decorative board in order of a process, (a) is a longitudinal direction end view of a base material, (b) is the state which formed the recessed part and the convex part (not shown) below the longitudinal side surface of this base material (C1) is a longitudinal end view of the substrate, and a longitudinal end view of a state in which a single decorative sheet is attached to the surface of the base material and portions other than the concave and convex portions on both long side surfaces, and (c2) is the same state. (D) is a longitudinal end view showing a state in which two V-grooves are formed by cutting from the back side of the decorative sheet pasting base material, and (e) is a view showing the two V-grooves closed. It is a longitudinal direction end view which shows the state which made the decorative board of FIG. 1 by joining the base-material parts after cutting. It is a figure which shows the manufacturing method of the decorative board by other embodiment in order of a process, (a) is a longitudinal direction end view of a base material similarly to FIG. 2, (b) is a recessed part below the longitudinal side surface of this base material. Longitudinal end view in a state where convex portions (not shown) are formed, (c1) is a longitudinal direction in which one decorative sheet is attached to the surface of the base material and portions other than the concave portions and convex portions on both longitudinal side surfaces. Direction end view, (c2) is a short side end view of the same state, (d) is a longitudinal end view showing a state in which two V-grooves are formed by cutting from the back side of the decorative sheet pasting base material, e) is a longitudinal end view showing a state where the decorative board of FIG. 1 is formed by closing these two V-grooves and joining the base material parts after cutting. It is a figure which shows the manufacturing method of the decorative board by other embodiment in order of a process, (a) is a longitudinal direction end view of a base material, (b) is a longitudinal side surface of this base material similarly to FIG. 2 and FIG. Longitudinal end view with recesses and protrusions (not shown) formed below, (c1) is a single decorative sheet pasted on the surface of this substrate and on both longitudinal sides except for the recesses and protrusions (C2) is a short-side end view of the same state, and (d) is a longitudinal direction showing a state in which two V-grooves are formed by cutting from the back side of the decorative sheet-bonded substrate. End view, (e) is a longitudinal end view showing the state of the decorative board of FIG. 1 by closing these two V-grooves and joining the base material parts after cutting. FIG. 5 is a diagram showing a method of manufacturing a decorative board according to another embodiment in the order of steps, in which, similarly to FIGS. 2 to 4, (a) is a longitudinal end view of a substrate, and (b) is a longitudinal side surface of the substrate. Longitudinal end view with recesses and protrusions (not shown) formed below, (c1) is a single decorative sheet pasted on the surface of this substrate and on both longitudinal sides except for the recesses and protrusions (C2) is a short-side end view of the same state, and (d) is a longitudinal direction showing a state in which two V-grooves are formed by cutting from the back side of the decorative sheet-bonded substrate. End view, (e) is a longitudinal end view showing the state of the decorative board of FIG. 1 by closing these two V-grooves and joining the base material parts after cutting. It is a figure which shows the manufacturing method of the decorative board by other embodiment in order of a process, (a) is a longitudinal direction end view of a base material, (b) is a longitudinal side surface of this base material like FIG. 2 thru | or FIG. Longitudinal end view with recesses and protrusions (not shown) formed below, (c1) is a single decorative sheet pasted on the surface of this substrate and on both longitudinal sides except for the recesses and protrusions (C2) is a short-side end view of the same state, and (d) is a longitudinal direction showing a state in which two V-grooves are formed by cutting from the back side of the decorative sheet-bonded substrate. End view, (e) is a longitudinal end view showing the state of the decorative board of FIG. 1 by closing these two V-grooves and joining the base material parts after cutting. It is a figure which shows the construction example in the case of using the decorative board manufactured by this invention for wall material, (a) is a rear view which shows the state before connecting decorative boards, (b) is the construction state after connection. FIG. It is a perspective view of the decorative board by a prior art.

The present invention will be described in detail below with reference to examples.

FIG. 1 shows an example of a decorative board 10 manufactured according to the present invention. The decorative board 10 has substantially the same shape and configuration as the decorative board of FIG. 8 described in relation to the prior art, and includes a surface 11, an inclined surface 12, and a side surface (short) extending in the short direction. (Hand side surface) 13 and a side surface (longitudinal side surface 14) extending in the longitudinal direction. The inclined surface 12 is formed between the surface 11 and the short side surface 13 so as to be inclined at an angle α (α <90 degrees) with respect to the surface 11, and the short side surface 13 is perpendicular to the surface 11. Further, it is formed at an inclination angle β (β <90 degrees) with respect to the inclined surface 12. In this embodiment, α = 20 degrees, β = 70 degrees, and α + β = 90 degrees.

The decorative plate 10 is different from the decorative plate of FIG. 8 in that a concave portion 15 is formed on one side below the long side surface 14 and a convex portion 16 having a shape that can be fitted in the concave portion 15 is formed on the other side. It is a point that is formed. The shape of the recess 15 and the protrusion 16 shown in the figure is an example, and any shape may be used as long as it has a shape that can be fitted to each other. The shape of female) can be arbitrarily adopted.

And the decorative sheet 21 (the part which covers the surface 11 is 21a, the inclined surface 12 is provided on the surface 11, the inclined surface 12, the short side surface 13 and the long side surface 14 (the portion excluding the concave portion 15 and the convex portion 16) of the decorative board 10. The portion to be covered is 21b, the portion covering the short side surface 13 is 21c, and the portion covering the long side surface 14 is 21d). On the longitudinal side surface 14, joints 19 and 20 of the decorative sheet 21 cut by the V grooves 23 and 24 as described later appear. The decorative plate 10 is assumed to be used as a wall material, and the back surface (substrate back surface 22d) of the decorative plate is not exposed in contact with the wall base, so that the decorative sheet is not attached. In addition, in this Example, although the inclined surface 12 is formed in the both ends of the longitudinal direction of the decorative board 10, it may be formed only in the one end.

The manufacturing method of this decorative board 10 is demonstrated with reference to FIG. First, as shown to Fig.2 (a), the plate-shaped base material 22 which has the surface 22a, a pair of short side surface 22b, a pair of long side surface 22c, and the back surface 22d is prepared (process (1)). For the base material 22, for example, a plywood, a fiber board, a particle board, a wood laminate (LVL), a solid board, or a wood board made of these laminate boards is used.

Next, as shown in FIG. 2B, the concave portion 15 is formed on one long side surface 22c of the base material 22, and the convex portion 16 is formed on the other long side surface 22c (step (2)). Since the decorative sheet 21 is not attached to the concave portions 15 and the convex portions 16, the concave portions 15 and the convex portions 16 formed on the base material 22 become the concave portions 15 and the convex portions 16 of the decorative board 1 as a final product as they are. In addition, you may perform this process (2) after the decorative sheet sticking process (3) mentioned later, further after a V-groove formation process (4), or after a joining process (5). In this case, in the decorative sheet sticking step (3), the decorative sheet is provided so as to cover the base material long side surfaces 22c and 22c up to the position of the upper surfaces 15a and 16a of the concave portion 15 and the convex portion 16 to be formed later or a position slightly below the upper surfaces 15a and 16a. 21 may be pasted.

Next, as shown in FIG. 2 (c1) and FIG. 2 (c2), the surface 22a of the base material 22 and the pair of long side surfaces 22c (parts excluding the concave portions 15 and the convex portions 16, the same applies hereinafter) are formed in a U shape. One decorative sheet 21 is stuck with an adhesive or the like so as to cover (step (3)). In this embodiment, as described above, there is no need to attach the decorative sheet 21 to the back surface 22d of the substrate that is invisible when touching the wall base, and the concave portion 15 and the convex portion 16 that are invisible due to the adjacent construction between the decorative plates. In addition, since there is no need to attach the decorative sheet 21, the width of the base material 22 plus the width (height) of the long side surfaces 22c, 22c is added to the length (width) of the short side direction of the base material 22, and the base material. The decorative sheet 21 having a length corresponding to the length in the longitudinal direction 22 is attached to the surface 22 a and the longitudinal side surfaces 22 c and 22 c of the base material 22. This decorative sheet sticking operation may be performed easily because it may be attached in a U-shape to the surface 22a and the long side surfaces 22c, 22c of the base material 22 and not to the short side surfaces 22b, 22b. . The decorative sheet 21 does not overlap at the corners of the short side surface 22b and the long side surface 22c. In the figure, the thickness of the decorative sheet 21 is represented by a thick solid line, and the surface pattern such as the wood grain pattern of the decorative sheet 21 is represented by oblique lines.

Next, as shown in FIG. 2 (d), while leaving the decorative sheet 21 adhered to the front surface 22a from the base material back surface 22d side near the longitudinal end where the inclined surface 2 of the decorative plate 10 is formed, Cut the substantially entire thickness of the base material 22 together with the decorative sheet 21 adhered to the long side surfaces 22c, 22c along the short direction, and the first V groove 23 having an angle α on the inner side and an angle closer to the end. A second V groove 24 of β is formed (step (4)). As described above, in this embodiment, α = 20 degrees, β = 70 degrees, and α + β = 90 degrees.

In forming the V grooves 23 and 24, it is preferable to cut away unnecessary portions on the back side of the base material 22. That is, as will be described later, the back surface 27a of the base end portion 27 of the decorative plate (FIGS. 1 and 2 (e)) obtained when the V-grooves 23 and 24 are closed and the cut base portions are joined together. It is preferable to form the V-grooves 23 and 24 after previously cutting away unnecessary portions on the back surface side of the base material 22 so as to be flush with the concave upper surface 15a and the convex upper surface 16a. .

Next, as shown in FIG. 2 (e), the V-grooves 23 and 24 are closed and the base material portions after cutting are joined with an adhesive or the like to obtain the decorative board 10 of FIG. 1 (step (5)). ). A region between the apex P1 of the V groove 23 and the apex P2 of the V groove 24 becomes an inclined surface 12 inclined at an angle α with respect to the surface 11 of the decorative plate 10, and the apex P2 and the end (substrate) of the V groove 24 A region between the surface 22a and the corner portion P3 of the short side surface 22b becomes the short side surface 13 that is further inclined at an angle β with respect to the inclined surface 12. Accordingly, the decorative sheet 21a that covers the surface 11 of the decorative board 10 as it is, the region between the vertices P1 and P1 of the V grooves 23 and 23 formed at both ends in the longitudinal direction of the decorative sheet 21 that is attached in advance to the surface 22a of the base material 22. Thus, the region between P1 and P2 becomes the decorative sheet 21b that covers the inclined surface 12 of the decorative plate 10 as it is, and the region between P2 and P3 becomes the decorative sheet 21c that covers the short side surface 13 of the decorative plate 10 as it is.

On the long side surface 14 of the decorative plate 10, the decorative sheet 21 that is attached in advance to the long side surfaces 22 c and 22 c of the base material 22 is divided at two locations by cutting and forming the V grooves 23 and 24, thereby joining the decorative sheet 21. Although it will appear as 19 and 20, at the same time as the formation of the V grooves 23 and 24, along the groove side surfaces of these V grooves 23 and 24, the decorative sheet 21 attached to the substrate longitudinal side surfaces 22c and 22c is also cut. Therefore, there is no gap or overlap in the decorative sheet joint 19.20, and the decorative sheet 21 (21d) is affixed to the entire surface of the decorative plate longitudinal side surface 14 in an attractive manner.

As is clear from FIG. 2, the short side surface 22b of the base material 22 has a makeup finally obtained as a result of the portions 17 and 18 divided by the V-grooves 23 and 24 being sequentially folded back. The plate 10 does not become the short side surface 13 but constitutes a surface that is flush with the upper surfaces 15a and 16a of the concave portion 15 and the convex portion 16 formed in the base material 22 (FIG. 2 (e)). That is, this surface is the short side surface 22b of the original base material 22, and the base material end portion 27 (part 17, 17) joined to both longitudinal ends of the base material main portion 26 remaining between the V grooves 23, 23. 18). In this embodiment, the base material end back surface 27a is continuous with the upper surfaces 15a and 16a of the concave portion 15 and the convex portion 16, but the base material end back surface 27a is formed from the upper surfaces 15a and 16a. It may be formed so as to be positioned above. If the base material end back surface 27a does not protrude downward from the upper surfaces 15a, 16a, lateral displacement can be performed in the joint construction of the decorative plates 10 as described later with reference to FIG.

As described above, in this embodiment, since the sum (α + β) of the angles α and β of the V grooves 23 and 24 is 90 degrees, the short side surface 13 of the decorative board 10 finally obtained is on the surface 11. It makes a right angle to it. The inclination angle of the inclined surface 12 can be freely changed by appropriately setting the angle α of the V groove 23. Further, when the short side surface 13 of the decorative board 10 should be inclined at an angle other than a right angle with respect to the surface 11, the sum (α + β) of the angles α and β may be set according to the inclination angle.

In this embodiment, a notch 25 is formed on the back surface side of the longitudinal end of the base material 22, and the tip 18 a of the portion 18 is accommodated in the notch 25 in the step (5). By doing in this way, the part 17 which forms the inclined surface 12 of the decorative board 10 is joined to the end surface of the base material main part 26 after the V-groove 23 is formed on its vertical surface, and its lower surface and the upper surface of the part 18 In addition, the upper surface and the side surfaces are bonded together in a state where the tip 18a is accommodated in the notch 25, so that the base material end 27 having higher strength is formed. The decorative board 10 is hard to be damaged even if it hits a wall or floor during transportation or construction. In addition, the process (6) which forms the notch 25 can be performed at an arbitrary time before the said process (5) is performed at the latest.

Drawing 3 is a figure showing the manufacturing method of the decorative board by other embodiments in order of a process. 3 (a) to 3 (c2) are the same as FIGS. 2 (a) to 2 (c2) showing the manufacturing method of Example 1, and the concave portion 15 and the convex portion 16 are formed from the step (1) of preparing the substrate. In this embodiment, the shape of the V-grooves 23 and 24 formed in the step (4) (and therefore the portions 17 and 18) is the same. Of the V groove 23 and the angle β of the V groove 24 is 45 degrees. Since the manufacturing method is substantially the same, the same reference numerals as those in the first embodiment are given, and the description thereof is omitted.

FIG. 4 is a diagram showing a method of manufacturing a decorative board according to still another embodiment in the order of steps. 4 (a) to 4 (c2) are the same as FIGS. 2 (a) to 2 (c2) showing the manufacturing method of Example 1, and the concave portion 15 and the convex portion 16 are formed from the step (1) of preparing the substrate. The same process is performed until the step (3) for attaching the decorative sheet through the step (2) to be performed, but in this embodiment, in the step (4), the notch 25 is not formed in the base material 22, and this Accordingly, the point 18 is not provided with the tip 18a accommodated in the notch 25 in the portion 18. Since the manufacturing method is substantially the same, the same reference numerals as those in the first embodiment are given, and the description thereof is omitted. In the decorative board manufactured according to this embodiment (FIG. 4E), the portion 17 and the portion 18 are joined to each other, and the base end portion 27 made of these is joined to the vertical end face of the base main portion 26. The

FIG. 5 is a diagram illustrating a method of manufacturing a decorative board according to still another embodiment in the order of steps. 5 (a) to (c2) are the same as FIGS. 2 (a) to (c2) showing the manufacturing method of Example 1, and the concave portion 15 and the convex portion 16 are formed from the step (1) of preparing the substrate. In this embodiment, the shape of the V-grooves 23 and 24 formed in the step (4) (and therefore the portions 17 and 18) is the same. Are different in that the notch 25 is not formed in the base material 22. Since the manufacturing method is substantially the same, the same reference numerals as those in the first embodiment are given, and the description thereof is omitted. In the decorative board manufactured according to this embodiment (FIG. 5 (e)), the portion 17 is joined to the vertical end surface of the substrate main portion 26, the portion 18 is joined only to the portion 17, and the substrate end together with the portion 18 is joined. Part 27 is configured. The bottom surface 27 a of the substrate end portion 27 is formed by only one surface of the portion 18.

FIG. 6 is a diagram illustrating a method of manufacturing a decorative board according to still another embodiment in the order of steps. 6 (a) to 6 (c2) are the same as FIGS. 2 (a) to 2 (c2) showing the manufacturing method of Example 1, and the concave portion 15 and the convex portion 16 are formed from the step (1) of preparing the substrate. In this embodiment, the shape of the V-grooves 23 and 24 formed in the step (4) (and therefore the portions 17 and 18) is the same. Are different in that the notch 25 is not formed in the base material 22. Since the manufacturing method is substantially the same, the same reference numerals as those in the first embodiment are given, and the description thereof is omitted. In the decorative board manufactured according to this embodiment (FIG. 6 (e)), the portion 17 is joined to the inclined end surface of the base material main portion 26, and the portion 18 is joined only to the portion 17 so as to largely protrude together with the portion 18. The base material end portion 27 is configured. The bottom surface 27a of the base material end portion 27 is formed so that the surfaces of the portions 17 and 18 are flush with each other.

FIG. 7 shows a construction example when the decorative board 10 obtained by the present invention exemplified in Examples 1 to 5 is constructed as a wall material, and is a rear view seen from the back side in contact with the wall base. . The decorative plate 10 is formed with a concave portion 15 below one longitudinal side surface 14, and a convex portion 16 having a shape that can be fitted with the concave portion 15 above the other longitudinal side surface 14. The bottom surface 27a of the portion 26 is formed so as to be flush with or above the recesses 15 and the top surfaces 15a, 16a of the projections 16. Therefore, when this decorative board 10 is used as a wall material that is constructed on a wall base while the short side surfaces 13 and 13 are vertically butted and the long side surfaces 14 and 14 are horizontally abutted, the short side surfaces 13 and 13 are The decorative board 10 (10A, 10B) can be adjacent to each other in the horizontal direction, and the decorative board 10 (10C) can be adjacent to the vertical direction through the fitting of the concave portion 15 and the convex portion 16 (FIG. 7 ( a)) Further, a wall surface that gives a tile-like or block-like appearance by shifting the decorative plate 1C laterally with respect to the decorative plates 10A, 10B while maintaining the fitted state to the decorative plates 10A, 10B. Construction can be performed easily (FIG. 7B). In FIG. 7, the decorative sheet 21 is not shown.

As shown in FIG. 7, when a plurality of decorative plates 10 are connected in the horizontal direction and the vertical direction to form a wall surface, the decorative plates 10 to be used may all have the same dimensions, but different dimensions. The decorative plate 10 may be combined to give a varied appearance. For example, a decorative plate A having a short length of 75 mm, a long length of 300 mm, and a thickness of 12 mm, a short length of 75 mm, a long length of 600 mm, and a decorative plate B having a thickness of 12 mm, a short length of 75 mm, and a long length of 900 mm, By combining with a decorative plate C having a thickness of 6 mm, a wall surface having an appearance like a masonry block can be obtained. For the decorative plate 10 disposed at both ends in the width direction of the wall surface, the substrate end portion 27 that gives the inclined surface 12 and the short side surface 13 is cut according to the dimensions, or the substrate is formed only at one end in the longitudinal direction. The decorative plate 10 for the end portion having the end portion 27 is prepared in advance, and this can be cut and applied in accordance with the dimensions.

10 (10A, 10B, 10C) Decorative plate 11 Decorative plate surface 12 Decorative plate inclined surface 13 Decorative plate short side surface 14 Decorative plate long side surface 15 Concave portion 15a Concave surface 16 Convex portion 16a Convex portion upper surface 17 V Substrate portion (first portion) left between grooves 23 and 24
18 Substrate part (second part) left on the end side of the V groove 24
18a End portion 19 of the second part 19, 20 Decorative sheet joint 21 Decorative sheet 21a Decorative sheet covering the surface of the decorative plate 21b Decorative sheet covering the inclined surface of the decorative plate 21c Decorative sheet covering the short side of the decorative plate 21d Cosmetic A decorative sheet 22 covering the longitudinal side surface of the board 22 Base material 22a Surface of the base material 22b Short side surface of the base material 22c Long side surface of the base material 22d Back surface of the base material 23 First V groove 24 Second V groove 25 Notch 26 Base material main portion 27 Base material end portion P1 Vertex P2 of V groove 23 Vertex P3 of V groove 24 Corner portion of substrate surface and short side surface

Claims (7)

Front and back surfaces, a pair of first side surfaces extending in a first direction, another pair of second side surfaces extending in a second direction orthogonal to the first direction, a surface and at least one first side surface A concave portion is formed below one second side surface, and a convex portion that can be fitted into the concave portion is formed below the other second side surface. And a decorative sheet that is attached to the entire surface excluding the concave and convex portions of the base material, and the two adjacent decorative plates are connected to each other between the concave and convex portions. A decorative board that can be connected in the first direction via fitting and that can slide in the second direction in this fitting state. The base material is joined to a substantially plate-like base material main part and at least one end side in the second direction of the base material main part at the same time as the second side surface, and the bottom surface is the top surface of the convex part and the concave part. And a base material end located at or above the same surface, and the base material end is formed of a first part and a second part, and the first part is formed on the end face of the base material main part. A first surface to be joined, a second surface for providing the inclined surface, and a third surface to be joined to the second portion, wherein the second portion is joined to the third surface of the first portion. The decorative board according to claim 1, further comprising: a first surface that is provided, a second surface that provides the short side surface, and a third surface that provides at least a part of a bottom surface of the end portion of the substrate. The base material is substantially plate-shaped, and a base material main part in which a notch is formed on the back side of at least one end in the second direction, and the notch forming side in the second direction of the base material main part A base end that is joined flush with the second side surface and whose bottom surface is flush with or above the top surface of the convex portion and the concave portion. The first part is joined to the vertical surface joined to the vertical end surface of the main part of the base material, the inclined surface providing the inclined surface, and the upper surface of the second part. An upper surface having an outer portion joined to the lower surface of the first portion and an inner portion joined to the upper surface of the notch, and An inner end surface joined to the side surface of the notch, an outer end surface appearing as the first side surface, and a bottom surface of the substrate end portion Characterized in that it is formed in a plate shape having a bottom surface appearing Te, claim 1 veneer according. A step of preparing a plate-like substrate having front and back surfaces, a first side surface extending in a first direction, and another pair of second side surfaces extending in a second direction orthogonal to the first direction ( 1) and a step (2) of forming a concave portion below one second side surface of the base material and a convex portion having a shape that can be fitted into the concave portion below the other second side surface. A step (3) of sticking a single decorative sheet so as to continuously cover the entire surface of the material and the pair of second side surfaces, and at least one end portion of the first side surface from the back surface side, The overall thickness of the base material is cut along the first direction together with the decorative sheet adhered to the second side surface while leaving the decorative sheet adhered to the second side, and the angle α (α <90 degrees) is A step (4) of forming one V-groove and a second V-groove having an angle β (β <90 degrees) near the end, and closing the first and second V-grooves The first portion formed between the first and second V-grooves and the second portion remaining at the end from the second V-groove, and the first and second portions By joining the base material end portion made of the base material main portion to the base material main portion, an inclined surface inclined at an angle α with respect to the surface between the apex of the first V groove and the apex of the second V groove, And a step (5) of obtaining a decorative board having a first side surface inclined at an angle β with respect to the inclined surface between the apex and the end of the second V-groove, A method for producing a decorative board. 5. The method for manufacturing a decorative board according to claim 4, wherein in the step (4), the first and second V grooves are formed so that α + β = 90 degrees. In step (5), the first and second V-grooves are closed to join the first part and the second part, and the base part end composed of the first and second parts is made the base part of the base part. In step (4), the first and second V-grooves are formed so that the back surface of the end portion of the base material is positioned flush with or above the top surfaces of the concave and convex portions when bonded to each other. The method for producing a decorative board according to claim 4 or 5, wherein the back side of the substrate is partially cut off. Before the step (5) is performed at the latest, the method has a step (6) of forming a notch on the back side of at least one end in the second direction of the base material. The V-groove is closed to join the first part and the second part, and the base part end composed of the first and second parts is joined to the base part main part, and the tip part of the second part The method for manufacturing a decorative board according to claim 6, wherein the decorative plate is accommodated in the notch and joined to an upper surface and a side surface of the notch.