JP6698310B2 - Veneer manufacturing method - Google Patents

Description

The present invention relates to a method for manufacturing a decorative plate in which a decorative sheet is attached to a base material.

When a decorative sheet made by attaching a decorative sheet to a base material is widely used for interior materials and furniture materials of houses, and when it is required to make a product having a shape as shown in Fig. 4 depending on its application . There is. That is, this product has a generally rectangular cross-sectional shape, but the inclined surface 2 is formed between the surface 1 and the side surface 3 extending in the lateral direction, and the surface 1, the inclined surface 2, the lateral side surface 3 and A decorative sheet 6 (a portion that covers the surface 1 is a portion 6a, a portion that covers the inclined surface 2 is a portion 6b, a portion that covers the short side surface 3 is a portion 6c, and a portion that covers the long side surface 4 is a portion 6d) is attached to the longitudinal side surface 4. ing. Depending on the case, the decorative sheet is also attached to a part or the whole of the back surface 5. The inclined surface 2 may be formed at both ends in the longitudinal direction or may be formed at only one end. Such products are used as wall materials and counter materials for houses.

When manufacturing the decorative plate 9 having the shape as shown in FIG. 4 , a method of sticking a decorative sheet to a base material molded in the same shape as the final product is usually adopted. Specifically, after attaching a decorative sheet 6 having a width approximately the same as the length in the lateral direction from the surface 1 to the lateral side 3 via the inclined surface 2 (or to the back surface 5 in some cases), the longitudinal Another decorative sheet 6 cut according to the shape of the side surface 4 is attached to the long side surface 4, or a decorative sheet 6 having a width dimension that covers both the long side surfaces 4 is formed from the surface 1 to the inclined surface 2. After adhering to the short side surface 3 (or 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 adhered.

However, according to the former method, in addition to the decorative sheet 6 that covers the front surface 1, the inclined surface 2 and the lateral side surface 3, a decorative sheet 6′ that covers the long side surface 4 must be prepared and attached in a separate process. As a result, manufacturing efficiency is reduced and cost is increased. In addition, since the seams of the decorative sheets 6 and 6 ′ appear along the edges (the corners formed by the surface 1 and the long side surfaces 4) on the surface side where it is easy for parts of the body or objects to hit, depending on the age. In some cases, the decorative sheets 6 and 6 ′ were curled or peeled off at the seams of the decorative sheet to expose the base material and impair the appearance.

According to the latter method, such drawbacks can be avoided, but it is difficult to cut the excess portion while adhering the decorative sheet 5 to the longitudinal side face 4 to form an accurate seam. If the base material is exposed at the seam portion and is not sufficiently cut, the edges of the decorative sheet after cutting overlap with each other, so that only that portion becomes thick and the appearance is impaired in any case.

In Patent Documents 1 and 2, after a decorative sheet is attached to the surface of a base material (core material) whose four sides are perpendicular to the front and back surfaces and at least one side surface, a V groove is formed from the back surface side, and the V groove is formed. It is described that the decorative plate is produced by continuously bonding the decorative sheet from the surface to the one side surface by bending the base material so as to close and joining the V groove side surfaces to each other. In either case, it is not possible to manufacture a decorative plate having the shape shown in FIG.

JP, 2008-006753, A JP, 2013-146868, A

The problem to be solved by the present invention is to provide a novel method capable of efficiently producing a decorative plate having a shape as shown in FIG.

In order to solve this problem, the invention according to claim 1 of the present application provides (1) a front surface and a back surface, a pair of first side surfaces extending in a first direction, and a second direction extending substantially orthogonal to the first direction. One decorative sheet is attached so as to continuously cover the entire surface of the plate-shaped substrate having the other pair of second side surfaces and the pair of second side surfaces, and (2) the pair of second side surfaces. At least one of the end portions near the first side surface of the side surface, from the back surface side, while leaving the decorative sheet adhered to the surface, approximately the total thickness of the base material together with the decorative sheet adhered to the second side surface. Cutting along the first direction, an inward first V groove having an angle α (α<90 degrees) and an angle at a position closer to the tip of the end than the first V groove. A second V groove of β (β<90 degrees) is formed, and the back surface side of the end is partially cut off, and (3) the first V groove and the second V groove are closed. The back surface of the base material portion left between the first V groove and the second V groove is joined to the second V groove by joining the base material portions after the formation of the V groove in the end portion and the partial cutting of the back surface side . And the initial first side face of the base material tip portion left near the tip end of the V groove is flush with the back surface of the base material to form the back surface of the decorative plate, and from the surface, further angle β inclined surface, the base member distal end portion inclined at an angle α relative to the surface between the apex of the vertex and the second V-groove of the first V grooves with respect to the inclined surface With the above-mentioned one decorative sheet, over the end surface that is formed to be inclined with respect to the end surface, and over the pair of second side surfaces formed by joining the base material portions after the V groove formation and the rear surface side partial cutout at the end portion are joined. It is characterized in that a coated veneer is obtained.

In the invention according to claim 2 of the present application, in the method for manufacturing a decorative plate according to claim 1, in the step (2), the first and second V grooves are formed so that α+β=90 degrees. Is characterized by.

According to the present invention of claim 1, one decorative sheet may be arranged in a U-shape so as to cover the surface of the plate-shaped substrate and the pair of second side surfaces, and the decorative sheet may be attached to each surface. Therefore, it is possible to easily attach the decorative sheet. The decorative sheet adhered to the surface of the base material was formed into a final product by forming the inclined surface and the end surface by closing the first V groove and the second V groove and joining the base material parts after cutting. Sometimes, it is left as it is as a decorative sheet that covers the end face from the surface through the inclined surface. Further, the V-groove forming operation from the back surface side is also easy, and thereby the unnecessary portion of the decorative sheet attached to the second side surface is cut off at the same time as the base material. When the V-grooves are closed and the base material parts after cutting are joined together, the joints between the cut-out decorative sheets appear exactly in the second side face without any gap and without overlapping, which gives a beautiful appearance. There is no loss. Further, in this way, the decorative plate having the shape as shown in FIG. 5 can be manufactured in good appearance and efficiently.

According to the present invention of claim 2, the end face obtained when the first V-groove and the second V-groove are closed and the base material parts after cutting are joined together is formed perpendicular to the surface. In addition, the inclination angle of the inclined surface can be freely set by appropriately selecting α when α+β=90 degrees.

1 is a perspective view of a decorative board according to an exemplary embodiment of the present invention. It is a figure which shows the manufacturing method of this decorative board in order of a process, FIG.2(a1) is a longitudinal direction end view of the state which stuck the decorative sheet on the surface and both long side surfaces of a plate-shaped base material, FIG.2(a2) is 2B is a longitudinal end view of the same state, and FIG. 2B is a longitudinal end view showing a state in which two V grooves are formed by cutting from the back surface side of the decorative sheet-attached base material. It is a longitudinal direction end view which shows the state which made the decorative board of FIG. 1 by closing two V-grooves and joining the base material parts after cutting. FIGS. 3A and 3B are diagrams showing a method of manufacturing a decorative sheet according to another embodiment in order of steps, and FIG. 3A is a longitudinal end view showing a state in which a decorative sheet is attached to the surface and both longitudinal side surfaces of the plate-shaped substrate. FIG. 3B is a longitudinal end view showing a state in which two V-grooves are formed by cutting from the back surface side of the decorative sheet-attached base material, and FIG. 3C is a base after cutting with these two V-grooves closed. It is a longitudinal direction end view which shows the state which made the decorative board by joining material parts. It is a figure which shows the manufacturing method by the prior art of the decorative board shown in FIG.

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

FIG. 1 shows an example of a decorative board 9 manufactured according to the present invention. This decorative plate 9 has substantially the same shape and configuration as the decorative plate of FIG. 5 described in connection with the prior art, and has a front surface 1, a back surface 5, and side surfaces (short sides) extending in the short-side direction. Except for the back surface 5 of the core material (no reference numeral) having a side surface 3 and a side surface extending in the longitudinal direction (long side surface 4) and an inclined surface 2 chamfered between the front surface 1 and the short side surface 3. A decorative sheet 6 (a portion that covers the surface 1 is a portion 6a, a portion that covers the inclined surface 2 is a portion 6b, a portion that covers the short side surface 3 is a portion 6c, and a portion that covers the long side surface 4 is a portion 6d) is attached to all surfaces. ing. On the longitudinal side surface 4, seams 7 and 8 of the decorative sheet 6 cut along the V groove as described later are shown. This decorative board 9 is supposed to be used as a wall material, and since the back surface 5 is not exposed in contact with the wall base, a decorative sheet is not attached to the back surface 5. When it is necessary to apply makeup to 5 as well, the same makeup sheet 6 or another makeup sheet may be attached to a part or the whole surface of the back surface 5. Further, in this embodiment, the inclined surface 2 is formed only at one end in the longitudinal direction of the decorative plate 9, but the inclined surface 2 may be formed at both ends.

A method of manufacturing the decorative plate 9 will be described with reference to FIG. First, as shown in FIGS. 2(a1) and 2(a2), a plate-shaped substrate 10 having a surface 11, a pair of short side surfaces 12, a pair of long side surfaces 13 and a back surface 14 is prepared, and the surface thereof is prepared. The decorative sheet 6 is adhered with an adhesive or the like so as to cover the entire surfaces of 11 and the pair of long side surfaces 13 in a U-shape. In this embodiment, as described above, since it is not necessary to attach the decorative sheet 6 to the back surface 5 of the decorative plate 9, it is not necessary to wrap the decorative sheet 6 up to the back surface 14 of the base material 10 and attach the decorative sheet 6. Therefore, the width corresponding to the length (width) of the base material 10 plus the width (height) of the longitudinal side surfaces 13 and 13 and the length corresponding to the length of the base material 10 in the longitudinal direction. The decorative sheet 6 having a thickness is used to adhere to the front surface 11 and the long side surfaces 13, 13 of the base material 10. This decorative sheet sticking work may be performed easily because it is stuck to the surface 11 of the base material 10 and both long side surfaces 13 and 13 in a U-shape, and is not stuck to the short side surfaces 12 and 12. it can. The decorative sheets 6 do not overlap at the corners of the short side surface 12 and the long side surface 13.

Next, as shown in FIG. 2B, near the one end where the inclined surface 2 of the decorative plate 10 is formed, the decorative sheet 6 attached to the front surface 11 is left from the base material back surface 14 side. Along with the decorative sheet 6 attached to the long side surfaces 13, 13, the substrate 10 is cut along its width direction to form a first V groove 15 having an angle α (α<90 degrees). A second V groove 16 having an angle β (β<90 degrees) is formed near the end. In this embodiment, α=20 degrees, β=70 degrees, and α+β=90 degrees.

It should be noted that when forming these V-shaped grooves 15 and 16, it is preferable to remove unnecessary portions on the back surface side of the base material 10. That is, the back surface 5 of the decorative plate (FIG. 1) obtained when the V-grooves 15 and 16 are closed and the portions of the base material 10 after cutting are joined together as described below is preliminarily prepared so as to be flush with each other. It is preferable to form the V-grooves 15 and 16 after removing unnecessary portions on the back surface side of the material 10.

Next, as shown in FIG. 2C, the V-shaped grooves 15 and 16 are closed and the portions of the base material 10 after cutting are joined together with an adhesive or the like, whereby the decorative plate 9 of FIG. 1 is obtained. A region between the apex P1 of the V groove 15 and the apex P2 of the V groove 16 becomes an inclined surface 2 inclined at an angle α with respect to the surface 1 of the decorative plate 9, and the apex P2 of the V groove 16 and an end portion (substrate). The region between the surface 11 and the corner portion P3 of the short side surface 12 becomes the short side surface (end surface) 3 further inclined at the angle β with respect to the inclined surface 2. Therefore, the area from the opposite end of the decorative sheet 6 previously attached to the surface 11 of the base material 10 to P1 becomes the decorative sheet 6a that covers the surface 1 of the decorative plate 9 as it is, and the area between P1 and P2 remains as it is. The decorative sheet 6b that covers the inclined surface 2 of the decorative plate 9 becomes the decorative sheet 6c that covers the short side surface 3 of the decorative plate 9 as it is in the region between P2 and P3. In the longitudinal side surface 4 of the decorative plate 9, the decorative sheet 6 previously attached to the longitudinal side surface 13 of the base material 10 is divided into two parts by cutting and forming the V grooves 15 and 16, and the seam 7 of the decorative sheet 6, 8 appears, but at the same time when the V grooves 15 and 16 are formed, the decorative sheet 6 attached to the long side surface 13 of the base material is cut along the groove side surfaces of the V grooves 15 and 16, There are no gaps or overlaps in the seam 7.8, and the decorative sheet 6 is attached over the entire longitudinal side surface 4 of the decorative plate with good appearance. As is apparent from FIG. 2, the short side surface 12 of the base material 10 is sequentially folded back to the back surface side by the V grooves 15 and 16, and as a result, the short side surface 3 is obtained in the finally obtained decorative plate 9. However, the back surface 5 of the decorative board 9 which is flush with the original back surface 14 of the base material and the back surface 17 left after the unnecessary portion of the back surface of the base material are removed is configured.

As described above, in this embodiment, the sum (α+β) of the angles α and β of the V grooves 15 and 16 is set to 90 degrees, so that the short side surface 3 of the finally obtained decorative plate 9 is the front surface 1 , 5 is at a right angle. The inclination angle of the inclined surface 2 can be freely changed by appropriately setting the angle α of the V groove 15. Further, when the short side surface 3 of the decorative plate 9 is to be inclined with respect to the front and back surfaces 1 and 5 at an angle other than a right angle, the sum (α+β) of the angles α and β may be set according to the inclination angle. ..

FIG. 3 is a diagram showing a method of manufacturing a decorative board according to another embodiment in the order of steps. The decorative board 9 manufactured by this manufacturing method is as shown in FIG. 3C, and the thickness of the base material 10 is doubled with respect to the decorative board 9 manufactured in Example 1. Along with this, the shapes of the V-grooves 15 and 16 and the end portions of the base material that are closed by the V-grooves 15 and 16 are different, but the manufacturing method is substantially the same, so the same as in Example 1. Will be assigned and the description will be omitted. Also in this embodiment, the angle α of the V groove 15 is 20° and the angle β of the V groove 16 is 70°, and the short side surface 3 of the finally obtained decorative plate 9 is with respect to the front and back surfaces 1 and 5. It makes a right angle. In addition, in FIG. 3, a view corresponding to FIG. 2(a2) of Example 1 (a short-side end view in a state where the decorative sheet 6 is attached to the front surface 11 of the base material 10 and both longitudinal side surfaces 13 and 13). ) Is omitted.

1 Surface of decorative plate 2 Inclined surface (chamfer) of decorative plate
3 Short side surface (end surface) of the decorative plate
4 Long Sides of Decorative Board 5 Back Side of Decorative Board 6 Decorative Sheets 7 and 8 Seams of Decorative Sheets that Appear on Long Sides of Decorative Board 9 Decorative Board 10 Base Material 11 Surface of Base Material 12 Short Side of Base Material (First Side) )
13 Long side of the substrate (second side)
14 Backside of Base Material 15 First V-groove 16 Second V-groove 17 Backside of Base Material 18 Left after Removal of Unnecessary Parts Base Material 19 Left Between V Grooves 19 Base Left on End Side of V-Groove Material portion 20 Notch P1 V groove 15 apex P2 V groove 16 apex P3 Corner between the base material surface and the lateral side

Claims (2)

(1) A plate-shaped substrate having front and back surfaces, a pair of first side surfaces extending in a first direction, and a pair of other second side surfaces extending in a second direction substantially orthogonal to the first direction Stick one decorative sheet so as to continuously cover the entire surface and the pair of second side surfaces,
(2) At least one end of both ends of the pair of second side faces close to the first side face, from the back surface side, while leaving the decorative sheet stuck to the front face, together with the decorative sheet stuck to the second side face By cutting substantially the entire thickness of the base material along the first direction, a first V groove having an angle α (α<90 degrees) is formed inside, and is closer to the tip of the end portion than the first V groove. A second V groove having an angle β (β<90 degrees) is formed at intervals, and the back surface side of the end is partially cut off,
(3) The first V-groove and the second V-groove are closed by closing the first V-groove and the second V-groove and joining the base portions after the V-groove formation and the rear surface side partial excision at the end portion to each other. Both the back surface of the base material portion left between the V groove and the first first side surface of the base material tip portion left nearer to the tip of the end portion than the second V groove is the back surface of the base material. Forms a back surface of the decorative plate so as to be flush with the surface of the base material, and is inclined from the surface of the base material 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. the inclined surface, the base member distal end portion toward the end surface that is formed to be inclined at more angles β relative to the inclined surface, and the substrate portion after the V-groove formation and the back side partial resection of the said end portions A method for manufacturing a decorative sheet, characterized in that a decorative sheet covered with the one decorative sheet is obtained over a pair of second side surfaces formed by joining the decorative sheets. 2. The method for manufacturing a decorative board according to claim 1, wherein in the step (2), the first and second V grooves are formed so that α+β=90 degrees.