JP6133463B1 - Wrapping decorative board and method for producing the same - Google Patents

Abstract

The present invention provides a wrapping decorative board with high wrapping accuracy that does not cause exposure of a substrate, and a manufacturing method for easily manufacturing a wrapping decorative board having such a structure. A decorative sheet layer comprising a rectangular plate-like base material 10 and a sheet 21 bonded and integrated to the base material 10 so that a peripheral edge portion 23 is positioned on the peripheral side surfaces 10b and 10c of the base material 10. In the wrapping decorative board 1 provided with 20, the portion to which the peripheral edge portion 23 of the sheet 21 of the short side surface 10c, 10c of the base material 10 is bonded is more than the outer edge of the surface 10a of the base material 10, respectively. In the decorative sheet layer 20, the surplus portion 23 c of the sheet 21 that protrudes from the side surface of the base material 10 at each corner of the base material 10 is formed on the receding surface 40 of the base material 10. It is fixed in a state of being folded on the short side surface bonding portion 23b bonded to the surface. [Selection] Figure 6

Description

    The present invention relates to a wrapping decorative board in which the surface of a plate-like base material used for a flooring or wall material of a building is wrapped with a sheet and a manufacturing method thereof, and particularly relates to a technique for improving wrapping accuracy. is there.

    Conventionally, as this type of wrapping decorative board, for example, as shown in Patent Documents 1 and 2, a sheet having a size that protrudes from the surface of the base material, and the surface of the base material and the surrounding side surface are integrally wrapped. is there. In these wrapping decorative boards, the surface of the base material is bonded to the surface of the base material and the peripheral side surface while bending the sheet, and the surplus portions protruding from the side surface of the base material are cut off at the four corners of the base material. The surrounding side is integrally wrapped with a sheet.

Japanese Patent Laying-Open No. 2015-20305 Japanese Patent Laying-Open No. 2015-20306

    However, in the above wrapping decorative board, the surplus portion is excised, and if the processing accuracy is poor, a gap may be formed in the excised portion and the substrate may be exposed. In addition, it is not easy to excise the surplus portion with high accuracy, and the wrapping decorative board cannot be easily manufactured.

    The present invention has been made in view of such a point, and an object thereof is to easily manufacture a wrapping decorative board having a high wrapping accuracy in which a substrate is not exposed and a wrapping decorative board having such a structure. It is to provide a manufacturing method.

    In order to achieve the above object, in the present invention, a sheet larger than the surface of the base material is bonded to the surface of the base material and the peripheral side surface, and the base is formed at the peripheral portion of the sheet at each corner portion of the base material. The surplus portion that protruded from the side surface of the material was fixed in a state of being folded on a receding surface bonding portion provided on the receding surface of one side pair of the base material facing each other at the periphery of the sheet.

    Specifically, the first invention is based on a rectangular plate-like base material and a sheet bonded and integrated to the surface and the peripheral side surface of the base material so that the peripheral edge is located on the peripheral side surface of the base material. A wrapping decorative board provided with a decorative sheet layer is assumed.

    In the wrapping decorative board according to the first aspect of the present invention, the portion of the base member on one side of the pair of side surfaces to which the peripheral edge of the sheet is bonded is more than the outer edge of the surface of the base material. The surplus part which is comprised by the retreating surface located inside the above-mentioned sheet and is the peripheral part of the above-mentioned sheet, and protruded from the side of the above-mentioned base material in each corner of the above-mentioned base material is the above-mentioned peripheral part of the above-mentioned sheet The parts where the peripheral edge of the sheet of the pair of side surfaces facing each other of the base material fixed in a folded state on the receding surface adhesive portion provided on the surface of the base material are respectively bonded to the surface of the base material. Constructed on the receding surface located on the inner side of the base material than the outer edge, and in the decorative sheet layer, the peripheral portion of the sheet has an excess portion protruding from the side surface of the base material at each corner of the base material. , The peripheral edge of the sheet Characterized in that it is fixed in a state of being folded backward surface bonded portion provided in the retraction plane of the substrate Te.

    In 1st invention, the decorative sheet layer of a base material is formed by adhere | attaching and integrating a sheet | seat on the surface and surrounding side surface of a base material so that the peripheral part may be located in the surrounding side surface of a base material. Further, when the sheet is bonded to the base material, an excess portion that is a peripheral portion of the sheet and protrudes from the side surface of the base material at each corner portion of the base material is provided on the side surface of the base material of the peripheral edge portion of the sheet. The finish was fixed in a state of being folded over the part. For this reason, it is not necessary to cut off the surplus portion, and there is no wrapping failure such that the base material is exposed because the processing accuracy is low. Therefore, it is possible to provide a wrapping decorative board with high wrapping accuracy that does not expose the base material.

    By the way, in the structure which folds and fixes to the part provided in the side surface of the base material of a sheet | seat, without excising the surplus part of a sheet | seat as mentioned above, the duplication part with which the surplus part of a decorative sheet layer overlaps is other parts. Also thicken. Thus, when a part of the side surface portion of the decorative sheet layer formed on the side surface of the base material is formed thick, there is a gap between the wrapping decorative plates when a plurality of wrapping decorative plates are used side by side as a flooring or a wall material. Since it is formed, the joint may become large and the aesthetics may be impaired.

    However, in the first aspect of the invention, the part to which the peripheral edge of the sheet of the pair of side surfaces facing each other of the base material is bonded is a receding surface located inside the base material from the outer edge of the surface of the base material. The excess portion of the sheet is folded and fixed to the receding surface bonding portion provided on the receding surface of the base material at the peripheral portion of the sheet. With such a configuration, the overlapping portion of the decorative sheet layer that is thicker than the other portions by the surplus portion of the sheet is accommodated in the space formed outside the side surface of the base material by the receding surface, so the decorative sheet layer The protrusion of the overlapping portion of the substrate to the outside of the substrate is suppressed. Therefore, when a plurality of wrapping decorative boards are arranged and used as a flooring or a wall material, gaps are not formed between the wrapping decorative boards, and the joints are not enlarged, so that a decrease in aesthetics can be suppressed. In addition, since the protrusion of the overlapping portion of the decorative sheet layer to the outside of the base material is suppressed, when a plurality of wrapping decorative plates are arranged side by side and used as a flooring material or a wall material, it is possible to suppress construction defects such as displacement. .

    In a second aspect based on the first aspect, the receding surface is constituted by an inclined surface that is located on the inner side of the base material from the front surface to the back surface of the base material.

    In 2nd invention, the receding surface in a base material can be easily processed by making a receding surface into an inclined surface.

    According to a third invention, in the second invention, the peripheral edge portion of the surface of the base material is configured as a chamfered portion located on the back surface side toward the outside, and adjacent to each side of the peripheral side surface of the base material A female fruit or a male fruit that engages with the base material of the wrapping decorative board is formed, and the inclined surface extends from the back side end of the chamfered part to the front side of the female fruit or male fruit in the front-back direction of the base material. It extends to the end face.

    In the third invention, when the chamfering process and the actual process are performed by cutting out a part of the substrate, the receding surface can be easily formed at the same time.

    In a fourth invention according to any one of the first to third inventions, the base material is constituted by a plate-like member made of a wood material.

    In 4th invention, the base material is comprised with the plate-shaped member which consists of a wood material. A plate-like member made of a wood material has high smoothness. Therefore, it is excellent in processability, can easily form a decorative sheet layer, and can constitute a wrapping decorative board excellent in design. Moreover, a receding surface can be easily formed by notching a part of a base material by comprising a base material with the plate-shaped member which consists of a wood material. As a result, a receding surface can be formed at the same time when the base material is cut (for example, during actual processing), so even if the receding surface is formed on the base material, it is easy without increasing the number of processing steps. A substrate can be formed.

    According to a fifth aspect of the present invention, there is provided a rectangular plate-shaped base material, and a decorative sheet layer made of a sheet that is bonded and integrated to the surface of the base material and the peripheral side surface so that the peripheral edge is located on the peripheral side surface of the base material The method of manufacturing a wrapping decorative board provided with

    And the manufacturing method of the wrapping decorative board according to the fifth aspect of the present invention is a method in which each of the pair of side surfaces facing each other of the base material is cut out, and a portion to which the peripheral edge portion of the sheet on each side surface is bonded, A notch step for processing the sheet to be a receding surface located inside the substrate rather than the outer edge of the surface of the substrate, and the sheet larger than the surface of the substrate, the periphery of which is a periphery of the substrate A sheet bonding step in which the substrate is bent so as to be positioned on a side surface and bonded to the surface of the substrate and the surrounding side surface; and in the sheet bonding step, the substrate is a peripheral portion of the sheet at each corner of the substrate. A surplus part processing step of folding and adhering the surplus part protruding from the side surface of the sheet to the receding surface bonding part provided on the receding surface of the base material at the peripheral edge of the sheet. And

    In the fifth invention, after a sheet larger than the surface of the base material is bent and adhered to the surface of the base material and the peripheral side surface, the sheet protrudes from the side surface of the base material at each corner of the base material. The excess portion was folded and bonded to the portion provided on the side surface of the base material at the peripheral edge of the sheet. In this way, because the finish portion of the sheet that protrudes from the side surface of the base material at each corner of the base material is folded and fixed to the portion provided on the side surface of the base material of the sheet, It is not necessary to cut off the excess part. Therefore, there is no wrapping failure such that the base material is exposed because the cutting accuracy is low. Therefore, a wrapping decorative board with high wrapping accuracy that does not expose the base material can be manufactured. Further, since it is not necessary to cut off the surplus portion with high accuracy, the finish is not greatly affected by the processing accuracy, and a lapping decorative board having excellent design can be easily formed.

    In the fifth aspect of the invention, the part to which the peripheral edge of the sheet of the pair of side surfaces facing each other on the base material is bonded to the receding surface located inside the base material from the outer edge of the surface of the base material. In the surplus part processing step, the surplus part of the sheet is folded and adhered to the receding surface bonding portion provided on the receding surface of the base material at the peripheral edge of the sheet. By such a manufacturing method, the overlapping portion of the decorative sheet layer that is thicker than the other portions by the excess portion of the sheet can be accommodated in the space formed on the side surface of the base material by the receding surface. The protrusion of the overlapping portion of the layer to the outside of the substrate is suppressed. Therefore, when a plurality of the decorative sheets are used as a flooring material or a wall material, gaps are not formed between the respective decorative decorative plates, and the joints are not enlarged, and a decorative decorative decorative plate can be manufactured. In addition, according to the above manufacturing method, since the protrusion of the overlapping portion of the decorative sheet layer to the outside of the base material is suppressed, wrapping that does not cause construction defects such as misalignment when a plurality of decorative sheet layers are used as a flooring material or a wall material. A decorative board can also be manufactured.

    According to the present invention, a sheet larger than the surface of the base material is bonded to the surface of the base material and the peripheral side surface, and the surplus that protrudes from the side surface of the base material at each corner of the base material at the peripheral portion of the sheet By fixing the portion in a folded state on the receding surface bonding portion provided on the receding surface of the base material at the peripheral edge of the sheet, the base material is exposed because the processing accuracy for cutting off the excess part is low. It is possible to provide a wrapping decorative board with high wrapping accuracy that does not cause wrapping defects such as the above. Moreover, since it is not necessary to excise an excess part accurately when forming a decorative sheet layer, a lapping decorative board with high lapping accuracy can be manufactured easily.

FIG. 1 is a perspective view of a wrapping decorative board according to Embodiment 1 of the present invention. FIG. 2 is a plan view of the wrapping decorative board according to the first embodiment of the present invention. FIG. 3 is a view taken in the direction of the line III-III in FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is an enlarged perspective view showing the vicinity of the receding surface of the side surface of the substrate. 6 is a perspective view showing a state after the decorative sheet layer is formed on the base material of FIG. 5 in an enlarged manner from the same angle as FIG. 7 (a) and 7 (b) are explanatory views of a first sheet adhering step for adhering the sheet to the surface of the base material in the method for manufacturing a wrapping decorative board, FIG. 7 (a) is a plan view, FIG. (B) is a side view. 8 (a) and 8 (b) are explanatory views of a second sheet adhering step for adhering the sheet to the long side surface of the substrate in the method for manufacturing a wrapping decorative board, FIG. 8 (a) is a plan view, FIG. 8B is a side view. 9 (a) and 9 (b) are explanatory views of a third sheet adhering step for adhering the sheet to the short side surface of the base material in the method for manufacturing a wrapping decorative board, FIG. 9 (a) is a plan view, FIG. 9B is a side view. 10 (a) and 10 (b) are explanatory views of a bending and bonding step in the method for manufacturing a lapping decorative board, FIG. 10 (a) is a plan view, and FIG. 10 (b) is a side view.

    Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following embodiments are merely preferred examples in nature, and are not intended to limit the scope of the present invention, its application, or its use.

Embodiment 1 of the Invention
1 and 2 show a wrapping decorative board 1 according to Embodiment 1 of the present invention. This wrapping decorative board 1 is used as a flooring or the like, for example.

−Configuration−
The wrapping decorative board 1 includes a rectangular plate-like base material 10 and a decorative sheet layer 20 composed of a sheet 21 bonded and integrated to the base material 10 with an adhesive.

<Structure of base material>
As shown in FIG.3 and FIG.4, the said base material 10 is comprised by laminating | stacking a medium density fiber board (MDF) etc. on a plywood. In addition, the base material 10 is not limited to such a configuration, for example, other wooden materials such as particle board and hard board, and inorganic plate materials such as a product name “Dailite” manufactured by Daiken Kogyo Co., Ltd. A plate-like material used as a building material may be used. The base material 10 is formed in, for example, a rectangular shape having a thickness of 15 mm, a width of 303 mm, and a length of 1818 mm.

[Female and male seeds]
A female fruit 4 or a male fruit 5 is formed on each side of the peripheral side surfaces 10b, 10b, 10c, and 10c of the substrate 10. Specifically, a female fruit 4 is formed on one of the long side surfaces 10b, 10b facing the width direction of the base material 10, and a male fruit 5 that can be fitted to the female fruit 4 is formed on the other side. Yes. In addition, a female fruit 4 is formed on one of the short side surfaces 10c, 10c facing the length direction of the base material 10, and a male fruit 5 that can be fitted to the female fruit 4 is formed on the other side. By fitting the male fruit 5 of the long side surface 10b, 10b of the base material 10 of the adjacent wrapping decorative plate 1 to the female fruit 4 of the long side surface 10b, 10b, both the wrapping decorative plates 1 are arranged and installed. The both wrapping decorative boards 1 are arranged by fitting the male berries 5 of the short side faces 10c, 10c of the base material 10 of the adjacent wrapping decorative board 1 to the female berries 4 of the short side faces 10c, 10c. It is configured to be installed.

    The female berries 4 and 4 of the long side surface 10b and the short side surface 10c are configured in the same structure. The female berries 4 and 4 have a female dent recess 4a, a front-side female ridge 4b, and a back-side female ridge 4c, respectively. The female real concave portion 4a is formed by cutting out the middle portions in the front and back directions, which are the thickness directions of the long side surface 10b and the short side surface 10c of the base material 10, into concave grooves. The front side female real convex part 4b and the back side female real convex part 4c are the remaining parts which cut out the female real recessed part 4a of the base material 10, Comprising: The front side female real convex part 4b is located in the front side of the female real recessed part 4a. It is a part and the back side real female convex part 4c is a part located in the back side of the female real recessed part 4a. In addition, in this embodiment, the front side female real convex part 4b is the female real concave part of the base material 10 so that the protruding length of the back side female real convex part 4c is longer than the protruding length of the front side female real convex part 4b. The front side portion of 4a is formed by cutting out into a groove shape shallower than the female recess 4a.

    The males 5 and 5 of the long side surface 10b and the short side surface 10c have the same structure. The males 5 and 5 each have a male convex part 5a, a front male concave part 5b, and a back male concave part 5c. The male convex part 5a, the front male concave part 5b, and the rear male concave part 5c are formed so that the intermediate part in the front and back direction of the long side surface 10b and the short side surface 10c of the base material 10 is a ridge. It is formed by notching the front side and the back side. In the present embodiment, the back male recess 5c is formed by cutting out into a groove shape deeper than the front male recess 5b.

    Thus, in this embodiment, what is called actual processing which forms the female fruit 4 and the male fruit 5 is given to the base material 10 so that the end surface of the adjacent lapping decorative board 1 may fit. However, the structure which fits the end surface of the adjacent wrapping decorative board 1 is not restricted to this. For example, one of the short side surfaces 10c and 10c of the base material 10 is cut out on the front side portion in the thickness direction of the base material 10, and the other is subjected to a so-called concluding process in which the back side portion in the thickness direction of the base material 10 is cut out. Also good. Further, the actual processing is not limited to the above-described one, and the protruding lengths of the front female real convex portion 4b and the back female real convex portion 4c are equal, and the depths of the front male concave portion 5b and the back male male concave portion 5c are equal. It may be a thing.

[Backward side]
Further, as shown in FIGS. 4 to 6, the protruding front end surface and the front side male part of the front side female real convex part 4 b to which the short side surface adhesive part 23 b of the sheet 21 of the short side surface 10 c, 10 c of the base material 10 is bonded. The bottom surface of the recess 5b is a receding surface 40 located on the inner side of the base material 10 with respect to the outer edge of the surface 10a of the base material 10 so that a space S1 in which excessive portions 23c and 23c of the sheet 21 described later are accommodated is formed. Is formed. In the present embodiment, the shorter the side surfaces 10c, 10c of the base material 10, the front end surfaces of the front female protrusions 4b and the bottom surfaces of the front male recesses 5b are directed toward the back side in the front and back direction of the base material 10, It forms in the inclined surface located inside, and comprises the receding surface 40. FIG. The phantom lines in FIGS. 5 and 6 are outlines of the front-side female actual convex portion 4b after the actual machining and before the receding surface 40 is formed (before the receding surface machining process).

[Chamfer]
As shown in FIGS. 3 and 4, the surface 10 a of the base material 10 constitutes a decorative surface of the wrapping decorative board 1. At the corners of the surface 10a of the substrate 10 and the long side surfaces 10b and 10b and the short side surfaces 10c and 10c, the corners are notched obliquely (or arcuately), and the bases become more outward. A chamfered portion 2 located on the back side of the material 10 is formed.

<Composition of decorative sheet layer>
The decorative sheet layer 20 is formed of a sheet 21 that integrally covers the surface 10a, the long side surfaces 10b and 10b, and the short side surfaces 10c and 10c of the base material 10, and is bonded with an adhesive. As the adhesive, for example, a moisture-curable urethane resin hot melt adhesive (PUR hot melt adhesive) is used. In this way, by using the moisture-curable urethane resin hot melt adhesive, the base material 10 can be easily wrapped with the sheet 21 and the sheet 21 can be bonded. It is also possible to use an adhesive other than the moisture curable urethane resin hot melt adhesive.

    The sheet 21 is made of, for example, a resin sheet such as polyvinyl chloride or polyolefin, and has a thickness of about 0.1 to 0.4 mm. The sheet 21 is formed in a rectangular shape that is larger than the surface 10 a of the base material 10. In addition to the above, the sheet 21 may be a thin sheet material such as a resin sheet such as polyethylene terephthalate, decorative paper such as coated paper or resin-impregnated paper, non-woven fabric, woven fabric, wood thin veneer, and tatami mat. it can. The thickness of the sheet 21 may be determined in consideration of the wrapping equipment, for example, about 0.05 to 0.3 mm for paper, and about 0.15 to 0.30 mm for a thin wood veneer. Are preferably used.

    As shown in FIGS. 3 and 4, the decorative sheet layer 20 made of the sheet 21 is attached to the surface portion 20 a attached to the surface 10 a of the base material 10 and the long side surfaces 10 b and 10 b of the base material 10. Two long side surface portions 20b, 20b, and two short side surface portions 20c, 20c attached to the short side surfaces 10c, 10c of the substrate 10, respectively.

    The surface portion 20a is constituted by a main body portion 22 of a sheet 21 adhered to the surface 10a of the substrate 10 with an adhesive.

    The two long side surface portions 20b and 20b are constituted by long side surface adhesive portions 23a and 23a which are the peripheral edge portion 23 of the sheet 21 and are bonded to the long side side surfaces 10b and 10b of the base material 10 with an adhesive. .

    Of the two long side surface bonding portions 23a, 23a of the sheet 21, the long side surface bonding portion 23a located on the long side surface 10b on which the female fruit 4 is formed is a female fruit that is a part of the long side surface 10b. 4 is bonded to the protruding front end surface of the front female convex portion 4b, so that the front end of the base 10 does not reach the female concave portion 4a. It extends to the vicinity of the actual recess 4a.

    On the other hand, of the two long side surface adhesive portions 23a, 23a of the sheet 21, the long side surface adhesive portion 23a located on the long side surface 10b where the male 5 is formed is a part of the long side surface 10b. The male convex part is bonded to the bottom surface of the front male concave part 5b of the male fruit 5 so that the tip on the back side does not reach the male convex part 5a in the front and back direction of the base material 10. It extends to the vicinity of 5a.

    The two short side surface portions 20c and 20c are the peripheral edge portion 23 of the sheet 21, and the short side surface adhesive portions 23b and 23b bonded to the short side surface 10c and 10c of the base material 10 with an adhesive, as well as the sheet 21. , 23c protruding from the base material 10 when the sheet 21 is bonded.

    Of the two short side surface adhesive portions 23b, 23b of the sheet 21, the short side surface adhesive portion 23b located on the short side surface 10c on which the female seed 4 is formed is a part of the short side surface 10c of the substrate 10. The front female protrusion 4b protrudes so that the front end of the base 10 does not reach the female recess 4a in the front and back direction of the base material 10. It extends to the vicinity of the female real recess 4a on the front end surface.

    On the other hand, of the two short side surface adhesive portions 23b and 23b of the sheet 21, the short side surface adhesive portion 23b located on the short side surface 10c on which the male 5 is formed is formed on the short side surface 10c of the base material 10. It adheres to the bottom surface of the front male concave portion 5b of the male male 5 which is a part, and the bottom of the front male concave portion 5b does not reach the male convex portion 5a in the front-back direction of the base material 10. It extends to the vicinity of the male convex part 5a.

    As described above, the protruding front end surface of the front side female real convex portion 4b and the bottom surface of the front side male concave portion 5b to which the short side surface adhesive portion 23b of the sheet 21 of the short side surface 10c, 10c of the base material 10 is bonded are Further, it is formed on the receding surface 40 located inside the base material 10 with respect to the outer edge of the surface 10 a of the base material 10. That is, the two short side surface bonding portions 23 b and 23 b of the sheet 21 constitute a receding surface bonding portion according to the present invention that is bonded to the receding surface 40.

    Further, at each corner of the base material 10 without being bonded to the base material 10 of the sheet 21, the excess portions 23c,..., 23c protruding from the long side surface 10b and the short side surface 10c are short side surface adhesive portions 23b. , 23b, and in this state, are bonded by an adhesive. As described above, the short side surface adhesive portions 23b, 23b where the surplus portions 23c, ..., 23c are folded are bonded to the receding surface 40 of the short side surface 10c, 10c of the base material 10. That is, the surplus portions 23c and 23c are folded and bonded to the short side surface bonding portion (retracting surface bonding portion) 23b of the sheet 21 bonded to the receding surface 40 of the short side surface 10c and 10c of the base material 10. . With such a configuration, overlapping portions of the decorative sheet layer 20 that are thicker than the other portions by the surplus portions 23c and 23c of the sheet 21 are formed on the short side surfaces 10c and 10c of the base material 10 by the receding surface 40. Since it accommodates in space S1, the protrusion to the outer side of the base material 10 of the duplication part of the decorative sheet layer 20 is suppressed.

    With the above-described configuration, the surface 10a and the side surfaces 10b and 10c of the base material 10 are covered with the sheet 21, and the decorative sheet layer 20 is formed on the surface 10a and the side surfaces 10b and 10c of the base material 10. .

-Manufacturing method-
Hereinafter, the manufacturing method of the lapping decorative board 1 which concerns on Embodiment 1 of this invention is demonstrated based on FIGS. The manufacturing method of the wrapping decorative board 1 includes a notch processing step of the base material 10, a wrapping step of the sheet 21 on the base material 10, and a surplus partial processing step. In addition, the order of the process demonstrated below is only an example, and the manufacturing method which concerns on this invention is not restricted to this.
(1) Notch processing step of substrate 10 First, the substrate 10 is notched. The notch processing of the base material 10 includes actual processing, chamfering processing, and receding surface processing. In the present embodiment, the receding surface machining process is performed simultaneously with the actual machining process. The actual machining process, the receding surface machining process, and the chamfering machining process may be performed simultaneously or sequentially.

[Actual machining process]
In the actual processing step, the long side surfaces 10b and 10b and the short side surfaces 10c and 10c of the base material 10 are cut out, and the long side surfaces 10b and 10b and the short side surfaces 10c and 10c are filled with the female seed 4 and the male seed 5, respectively. Each is processed.

[Chamfering process]
In the chamfering process, the corners of the surface 10a of the substrate 10 and the long side surfaces 10b and 10b and the short side surfaces 10c and 10c are cut obliquely (or in an arc shape), and the substrate 10 is directed toward the outside. The chamfered portion 2 located on the back side is formed.

[Recessed surface machining process]
In the receding surface processing step, the protruding front end surface of the front female projection 4b and the bottom surface of the front male recess 5b on the short side surfaces 10c, 10c of the base 10 are cut obliquely, and the back side in the front and back direction of the base 10 The receding surface 40 located inside is formed so that it goes to.
(2) Lapping process to the base material 10 Next, the sheet 21 is subjected to lapping processing on the surface 10a, the long side surfaces 10b and 10b, and the short side surfaces 10c and 10c of the base material 10, and the decorative sheet layer is applied to the base material 10. 20 is formed. The lapping process includes an adhesive application process and first to third sheet bonding processes.

[Adhesive application process]
In the adhesive application step, an adhesive (moisture curable urethane resin hot melt adhesive) is applied to the back surface of the sheet 21. Note that the adhesive may be applied to the front surface 10a, the long side surfaces 10b and 10b, and the short side surfaces 10c and 10c of the base material 10, instead of being applied to the back surface of the sheet 21.

    For example, the sheet 21 is wound around a roll or the like, and is continuously fed out from the roll and supplied. The sheet 21 corresponds to the width of the base material 10 when the width of the sheet 21 is previously wrapped. The reference width may be set to be larger than the reference width. Specifically, the reference width of the sheet 21 is lapped by aligning the width direction of the sheet 21 to the base material 10 and bonding the sheet 21 to the long side surfaces 10b and 10b of the base material 10 in the second sheet bonding process described later. The ends of the long side surface adhesive portions 23a, 23a of the sheet 21 thus formed (the back side ends in the front and back direction of the base material 10) are formed on the female real concave portion 4a and the male real convex portion 5a of the long side side surfaces 10b, 10b. The width does not reach. FIG. 7A shows a sheet 21 having a reference width.

[First sheet bonding step]
As shown in FIGS. 7A and 7B, in the first sheet bonding step, the sheet 21 is pressed against the surface 10a of the base material 10, and the adhesive is solidified and bonded. At this time, the sheet 21 and the base material 10 are accurately aligned in the width direction and bonded. By such an operation, the main body portion 22 of the sheet 21 is bonded onto the surface 10 a of the base material 10. In the present embodiment, the surface portion 20 a of the decorative sheet layer 20 is configured by the main body portion 22 of the sheet 21.

[Second sheet bonding step]
As shown in FIGS. 8A and 8B, in the second sheet adhering step, the peripheral portion of the sheet 21 adhered to the surface 10a of the substrate 10 and both ends in the width direction are bent to form the substrate. The two long side surfaces 10b and 10b are bonded with an adhesive.

    Specifically, by using a heated bending jig, both end portions in the width direction of the sheet 21 are formed on the protruding front end surface of the front female protrusion 4b and the front male recess 5b on the long side surface 10b of the substrate 10. A hot press operation is performed by pressing the bottom surface and reactivating (remelting) the adhesive on the back surface of the sheet 21. Thereafter, the heating of the bending jig is stopped, and the both ends in the width direction of the sheet 21 are placed in the unheated bending jig, and the protruding front end surface of the front side female convex part 4b of the long side surface 10b of the substrate 10 and A cold press operation is performed in which the adhesive is pressed against the bottom surface of the front male recess 5b and solidified by cooling the reactivated adhesive.

    By the above hot press operation and cold press operation, the length of the peripheral edge portion 23 of the sheet 21 on the protruding front end surface of the front side female real convex portion 4b and the bottom surface of the front side male real concave portion 5b of the long side surface 10b of the substrate 10 is increased. The side surface bonding portions 23a and 23a are bonded. In the present embodiment, the two long side surface portions 20 b and 20 b of the decorative sheet layer 20 are configured by the two long side surface adhesive portions 23 a and 23 a of the sheet 21.

[Third sheet bonding step]
As shown in FIGS. 9A and 9B, in the third sheet adhering step, the periphery of the sheet 21 adhered to the surface 10a of the substrate 10 and both longitudinal ends thereof are bent to form the substrate The two short side surfaces 10c and 10c are bonded with an adhesive.

    Specifically, by using a heated bending jig, both ends of the sheet 21 in the longitudinal direction are formed on the protruding front end surface of the front female protrusion 4b and the front male recess 5b on the short side surface 10c of the substrate 10. A hot press operation is performed by pressing the bottom surface and reactivating (remelting) the adhesive on the back surface of the sheet 21. Thereafter, the heating of the bending jig is stopped, and the both ends of the sheet 21 in the longitudinal direction of the bending jig in an unheated state are connected to the protruding front end surface of the front side female convex part 4b of the short side surface 10c of the substrate 10 and A cold press operation is performed in which the adhesive is pressed against the bottom surface of the front male recess 5b and solidified by cooling the reactivated adhesive.

    By the hot press operation and the cold press operation described above, the short edge of the peripheral edge portion 23 of the sheet 21 is formed on the protruding front end surface of the front female real convex portion 4b and the bottom surface of the front male real concave portion 5b on the short side surface 10c of the substrate 10. The side surface bonding portions 23b and 23b are bonded.

    Note that, as described above, in the present embodiment, the entire front end of the front female protrusion 4b and the bottom surface of the front male recess 5b on the short side surfaces 10c and 10c are back in the front and back direction of the substrate 10. It is comprised in the receding surface 40 which consists of an inclined surface located inside as it goes. Therefore, the short side surface adhesive portions 23 b and 23 b of the peripheral edge portion 23 of the sheet 21 are bonded to the receding surface 40 that is located on the inner side toward the back side in the front and back direction of the base material 10.

When this third sheet bonding step is completed, the peripheral edge 23 of the rectangular sheet 21 is bent and bonded to the two long side surfaces 10b and 10b and the two short side surfaces 10c and 10c of the base material 10. It becomes. At this time, at the four corners around the base material 10, the corner portions of the peripheral edge portion 23 of the sheet 21 protrude from the long side surface 10 b and the short side surface 10 c of the base material 10 and are not bonded to the base material 10. 23c, ..., 23c. As shown in FIG. 9B, each surplus portion 23 c includes a portion where each corner portion of the peripheral edge portion 23 of the sheet 21 protrudes from the long side surface 10 b of the substrate 10 at each corner portion of the substrate 10. The back surface of the part which protruded from the short side surface 10c is bent and formed so that it may overlap.
(3) Surplus part processing process Next, the sheet | seat 21 which adhere | attached the surplus part 23c of the sheet | seat 21 formed in each corner | angular part of the base material 10 in the above-mentioned lapping process to the short side surface 10c, 10c of the base material 10. A surplus partial processing step of folding and adhering to the short side surface adhesive portion (retracted surface adhesive portion) 23b is performed. The surplus partial processing step includes an adhesive application step and a bending bonding step.

[Adhesive application process]
In the adhesive application step, an adhesive (moisture curable urethane resin hot melt adhesive) is applied to a surface continuous with the short side surface adhesive portion 23b of each surplus portion 23c. Note that the adhesive may be applied to a portion where the surplus portion 23c of the short side surface adhesive portion 23b overlaps instead of being applied to the surface continuous to the short side surface adhesive portion 23b of each surplus portion 23c.

[Bending and bonding process]
As shown in FIGS. 10A and 10B, in the bending process, each surplus portion 23 c of the sheet 21 is bonded to the receding surface 40 formed on the short side surfaces 10 c and 10 c of the substrate 10. It is bent so as to fold over the short side surface adhesive portion (retracted surface adhesive portion) 23b. Then, by pressing the overlapping portion where each surplus portion 23c of the sheet 21 overlaps the short side surface adhesive portion 23b, the adhesive applied to the surplus portion 23c or the short side surface adhesive portion 23b is solidified to surplus portion 23c. Is bonded to the short side surface bonding portion 23b. Thereby, the short side surface adhesive portions 23b and 23b of the peripheral edge portion 23 of the sheet 21 and the surplus on the protruding front end surface of the front side female real convex portion 4b of the short side surface 10c of the base material 10 and the bottom surface of the front side male real concave portion 5b. Two short side surface portions 20c, 20c of the decorative sheet layer 20 are formed by the portions 23c, ..., 23c.

    As described above, the present wrapping decorative board 1 performs the above-described excessive partial processing step after the wrapping step of the sheet 21 to the base material 10, thereby allowing the sheet 21 that has not been adhered to the base material 10 to protrude. The surplus portion 23c is bonded in a state of being folded on the short side surface bonding portion 23b without being cut.

    By the way, in the decorative sheet layer 20, the overlapping portion where the surplus portion 23c overlaps the short side surface adhesive portion 23b is formed to be thicker than the other portions. Thus, when a part of the short side surface portion 20c of the decorative sheet layer 20 is formed to be thick, there is a gap between the wrapping decorative plates 1 when the plurality of wrapping decorative plates 1 are arranged and used as a flooring or a wall material. Since it is formed, the joints may become large and the design properties may be reduced.

    However, in the present embodiment, in the surplus portion processing step, the surplus portions 23c,..., 23c of the sheet 21 are arranged on the inner side of the base material 10 rather than the outer edge of the surface 10a of the base material 10 at the peripheral edge 23 of the sheet 21. The short side surface adhesive portions (retracted surface adhesive portions) 23b, 23b bonded to the receding surface 40 located at the position are folded and adhered. Therefore, the overlapping part of the decorative sheet layer 20 that is thicker than the other parts by the surplus parts 23c,..., 23c of the sheet 21 is outside of the receding surface 40 by the receding surface 40 and more than the outermost edge of the substrate 10. It is accommodated in a space S1 formed at an inner position. Therefore, in the decorative sheet layer 20, the protrusion of the overlapping portion where the surplus portions 23c,..., 23c of the sheet 21 overlap the short side surface adhesive portions (retracted surface adhesive portions) 23b, 23b to the outside of the base material 10 is suppressed.

-Effect of Embodiment 1-
As described above, according to the wrapping decorative board 1 of the first embodiment, when the sheet 21 is bonded to the base material 10, the base material 10 is formed in the peripheral portion 23 of the sheet 21 and at each corner of the base material 10. The surplus portions 23c,..., 23c that protrude from the side surfaces 10b, 10c of the tenth sheet are finished so as to be fixed in a state where they are folded on the portions bonded to the side surfaces 10b, 10c of the base material 10 of the peripheral edge 23 of the sheet 21. Therefore, it is not necessary to cut off the surplus portions 23c,..., 23c of the sheet 21 as in the prior art, and wrapping defects such as exposure of the base material 10 due to low processing accuracy do not occur. Therefore, the wrapping decorative board 1 with high wrapping accuracy in which the substrate 10 is not exposed can be provided.

    By the way, in the structure which folds and fixes to the part adhere | attached on the side surface 10b, 10c of the base material 10 of the sheet | seat 21 without excising the excess parts 23c, ..., 23c of the sheet | seat 21 as mentioned above, the decorative sheet layer 20 , 23c overlap each other, and the overlapping portion becomes thicker than the other portions. Thus, when a part of the decorative sheet layer 20 formed on the side surface 10c of the base material 10 is formed thick, when the plurality of wrapping decorative plates 1 are arranged and used as a flooring or a wall material, the wrapping decorative plate 1 Since gaps are formed between them, the joints may become large and the appearance may be impaired.

    However, in the lapping decorative board 1 of the first embodiment, the protruding front end surface of the front side female convex portion 4b to which the peripheral edge portion 23 of the sheet 21 of the two short side surfaces 10c, 10c facing each other of the base material 10 is bonded and The bottom surface of the front male concave portion 5b is configured as a receding surface 40 positioned inside the base material 10 with respect to the outer edge of the surface 10a of the base material 10, and the surplus portions 23c,. The side edge portion 23 of the base material 10 and the short side surface adhesive portions (retracted surface adhesive portions) 23b and 23b bonded to the receding surface 40 of the base material 10 are folded and fixed. With such a configuration, the overlapping portion of the decorative sheet layer 20 that becomes thicker than the other portions by the surplus portions 23c, ..., 23c of the sheet 21 is formed on the outside of the receding surface 40 by the receding surface 40. It is accommodated in a space S1 formed at a position inside the outermost edge. Therefore, in the decorative sheet layer 20, the protrusion of the overlapping portion where the surplus portions 23c,..., 23c of the sheet 21 overlap the short side surface adhesive portions (retracted surface adhesive portions) 23b, 23b to the outside of the base material 10 is suppressed. Therefore, when a plurality of wrapping decorative boards 1 are arranged and used as a flooring or a wall material, a gap is not formed between the wrapping decorative boards 1 and the joints are not enlarged, so that a decrease in aesthetics can be suppressed. Moreover, since the protrusion to the outer side of the base material 10 of the overlapping part of the decorative sheet layer 20 is suppressed, when a plurality of the wrapping decorative plates 1 are arranged and used as a flooring or a wall material, a construction failure such as a shift is suppressed. You can also.

    Moreover, in the lapping decorative board 1 of this Embodiment 1, the receding surface 40 is comprised in the inclined surface located inside this base material 10, so that it goes to the back surface from the surface 10a of the base material 10. FIG. Thereby, the process of the receding surface 40 in the base material 10 can be performed easily.

    Further, in the lapping decorative board 1 of Embodiment 1, the inclined surface constituting the receding surface 40 is extended from the back side end of the chamfered portion 2 to the front side end surface of the female fruit 4 or the male fruit 5 in the front and back direction of the base material 10. It was decided to form so as to extend. By making the receding surface 40 such an inclined surface, the receding surface 40 can be easily formed at the same time when chamfering and actual machining are performed by cutting out a part of the substrate 10.

    Moreover, in the lapping decorative board 1 of this Embodiment 1, the base material 10 is comprised with the plate-shaped member which consists of a wood material. A plate-like member made of a wood material has high smoothness. Therefore, the wrapping decorative board 1 having excellent processability and easily forming the decorative sheet layer 20 and having excellent design properties can be configured. Further, by forming the base material 10 with a plate-like member made of a wood material, the receding surface 40 can be easily formed by cutting out a part of the base material 10. Thereby, since the receding surface 40 can be simultaneously formed at the time of cutting processing of the base material 10 (for example, at the time of actual processing), even if the receding surface 40 is formed on the base material 10, the number of processing steps is increased. The substrate 10 can be easily formed.

    Moreover, in the manufacturing method of the lapping decorative board 1 of this Embodiment 1, after the sheet | seat 21 larger than the surface 10a of the base material 10 is bend | folded and adhere | attached on the surface 10a of the base material 10 and surrounding side surface 10b, 10b, 10c, 10c. The excess portions 23c,..., 23c that protrude from the side surfaces 10b, 10c of the base material 10 at the corners 23 of the base material 10 The short side surfaces 10c and 10c are finished to be folded and bonded to the short side surface adhesive portions 23b and 23b bonded to the protruding front end surface of the front side female real convex portion 4b and the bottom surface of the front side male real concave portion 5b. Therefore, it is not necessary to cut off the surplus portion 23c as in the conventional manufacturing method. Therefore, there is no wrapping failure such that the base material 10 is exposed because the cutting accuracy is low. Therefore, the wrapping decorative board 1 with high wrapping accuracy in which the substrate 10 is not exposed can be manufactured. Moreover, since it is not necessary to cut off the surplus portion 23c with high accuracy, the finish is not greatly affected by the processing accuracy, and the lapping decorative board 1 having excellent design can be easily manufactured.

    Moreover, in the manufacturing method of the lapping decorative board 1 of this Embodiment 1, the protrusion of the front-side female real convex part 4b to which the peripheral part 23 of the sheet | seat 21 of the two short side surfaces 10c and 10c which the base material 10 mutually opposes adhere | attaches. The front end surface and the bottom surface of the front male concave portion 5b are each processed into a receding surface 40 positioned inside the base material 10 with respect to the outer edge of the surface 10a of the base material 10, and in the surplus part processing step, the surplus part of the sheet 21 23c,..., 23c are folded and bonded to short side surface adhesive portions (retracted surface adhesive portions) 23b, 23b which are the peripheral edge portion 23 of the sheet 21 and bonded to the retreating surface 40 of the base material 10. . By such a manufacturing method, the overlapping portion of the decorative sheet layer 20 that becomes thicker than the other portions by the surplus portions 23c,..., 23c of the sheet 21 is formed on the substrate 10 on the outside of the receding surface 40 by the receding surface 40. , 23c of the sheet 21 in the decorative sheet layer 20 are short-side side surface adhesive portions (retracted surface adhesive portions) 23b because they can be accommodated in the space S1 formed at a position inside the outermost edge. , 23 b is prevented from protruding to the outside of the base material 10. Therefore, the lapping decorative board 1 excellent in design property and workability can be manufactured. Moreover, when using it as a flooring or a wall material by arranging two or more, the clearance gap is formed between each wrapping decorative board 1, and a joint is not enlarged, and the wrapping decorative board 1 which is good-looking can be manufactured. Moreover, according to the said manufacturing method, since the protrusion to the outer side of the base material 10 of the duplication part of the decorative sheet layer 20 is suppressed, when using it as a flooring or a wall material in multiple numbers, construction defects, such as a shift | offset | difference, arise. A non-wrapping decorative board 1 can also be produced.

<< Other Embodiments >>
In the first embodiment, the entire surface of the protruding front end surface of the front female projection 4b and the bottom surface of the front male recess 5b on the short side surfaces 10c and 10c of the substrate 10 is directed toward the back side in the front and back direction of the substrate 10. It forms in the inclined surface located inside, and the receding surface 40 was comprised by this inclined surface. However, the receding surface 40 according to the present invention is not limited to the inclined surface of the first embodiment. A space S1 for accommodating the overlapping portion is secured so that the protruding portion of the overlapping portion of the decorative sheet layer 20 that is thicker than the other portions by the excess portions 23c,. Any shape can be used as long as it can be retreated. For example, you may form by a circular arc surface.

    Further, in Embodiment 1 described above, the protruding front end surface of the front female projection 4b and the bottom surface of the front male recess 5b on the short side surfaces 10c, 10c of the substrate 10 are inclined to form the receding surface 40. If the overlapping portion of the decorative sheet layer 20 that is thicker than the other portions by the surplus portions 23c,..., 23c of the sheet 21 can secure a space S1 for housing so as not to protrude further from the outer edge of the base material 10. For example, a part of the short side surfaces 10c, 10c of the base material 10 may be formed on the receding surface 40 instead of the entire protruding front end surface of the front side female real convex portion 4b and the bottom surface of the front side male real concave portion 5b.

    In the said embodiment, although the receding surface 40 was formed in the short side surface 10c, 10c of the base material 10, the receding surface 40 may be formed in the long side side surface 10b, 10b of the base material 10. FIG. The receding surface 40 only needs to be formed on at least one of the long side surface 10b and the short side surface 10c sandwiching each corner of the base material 10, but may be formed on both.

    Moreover, in the said embodiment, when fixing the surplus part 23c of the sheet | seat 21 to the short side surface adhesion part (retraction surface adhesion part) 23b, it was supposed to adhere | attach using an adhesive agent, However, Excess part by heating 23c may be melted and fused to the short side surface bonding portion (retracted surface bonding portion) 23b.

    In each of the above embodiments, the wrapping decorative board 1 is used as a flooring. However, the use of the wrapping decorative board 1 is not limited to a flooring. In addition, for example, it is also possible to use for a wall material etc., for example.

    As described above, the present invention is useful for a lapping decorative board in which the surface of a plate-like base material used for a flooring or wall material of a building is lapped with a sheet and a method for manufacturing the same.

1 Wrapping decorative board
2 Chamfer
4 female
5 Yumi
10 Base material
10a surface
10b Long side surface (peripheral side surface, side surface)
10c Short side (peripheral side, side)
20 Decorative sheet layer
21 sheets
23 Edge
23b Short side surface bonded portion (retracted surface bonded portion)
23c Surplus part
40 receding surface

Claims (5)

Wrapping decorative board comprising a rectangular plate-shaped base material and a decorative sheet layer composed of a sheet bonded and integrated to the surface of the base material and the peripheral side surface so that the peripheral portion is located on the peripheral side surface of the base material Because
The part to which the peripheral edge of the sheet of one side pair of the base material facing each other is bonded is constituted by a receding surface located inside the base material from the outer edge of the surface of the base material, respectively.
In the decorative sheet layer, an excess portion that is a peripheral portion of the sheet and protrudes from a side surface of the base material at each corner portion of the base material is a peripheral portion of the sheet and the receding surface of the base material. A lapping decorative board, which is fixed in a folded state on a receding surface bonding portion provided. In claim 1,
The wrapping decorative board according to claim 1, wherein the receding surface is constituted by an inclined surface that is located on the inner side of the base material from the front surface to the back surface of the base material. In claim 2,
The peripheral portion of the surface of the base material is configured as a chamfered portion located on the back surface side toward the outside,
Each side of the peripheral side surface of the base material is formed with a female fruit or a male fruit that engages with the base material of the adjacent wrapping decorative board,
The lapping decorative board according to claim 1, wherein the inclined surface extends from a back side end portion of the chamfered portion to the female or male front side end surface in a front and back direction of the base material. In any one of Claims 1 thru | or 3,
The wrapping decorative board according to claim 1, wherein the base material is constituted by a plate-like member made of a wood material. Wrapping decorative board comprising a rectangular plate-shaped base material and a decorative sheet layer composed of a sheet bonded and integrated to the surface of the base material and the peripheral side surface so that the peripheral portion is located on the peripheral side surface of the base material A manufacturing method of
Each of the pair of side surfaces facing each other of the base material is cut out, and a portion to which the peripheral edge portion of the sheet on each side surface is bonded is located inside the base material with respect to the outer edge of the surface of the base material. A notch process for processing to be a receding surface,
A sheet adhering step in which the sheet larger than the surface of the base material is bent so that a peripheral edge portion is located on the peripheral side surface of the base material and bonded to the surface of the base material and the peripheral side surface;
In the sheet adhering step, a surplus portion that is a peripheral portion of the sheet and protrudes from a side surface of the base material at each corner portion of the base material is a receding portion provided on the receding surface at the peripheral edge portion of the sheet. And a surplus partial processing step of folding and adhering to the surface bonding portion.

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