JP3677530B2 - Decorative plate and method for producing the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a decorative board used as a building interior material such as a flooring material or a wall material of a house or a building, and a manufacturing method thereof.
[0002]
[Prior art]
As a conventional decorative plate, for example, a groove that reaches the substrate is provided on the decorative single plate side in a plate in which the decorative single plate is attached to the substrate. In addition, the rounded edge of the groove is provided so that the decorative veneer is pushed into the groove along the rounded edge of the groove so that the decorative veneer partially covers the groove substrate. One is known (Japanese Patent Laid-Open No. 2001-207629).
[0003]
On the other hand, the decorative plate with the decorative veneer stuck on the substrate extends from the decorative veneer to the upper layer of the substrate along the upper edge, and the curved cross-sectional shape whose vertical cross-sectional shape protrudes outward What has been excised is known (Japanese Patent Laid-Open No. 7-88992).
[0004]
[Problems to be solved by the invention]
However, in any of the above decorative plates, the width of the lower portion of the groove is made smaller than the opening width of the groove so that the substrate base in the groove is not exposed as much as possible. When the width of the lower portion of the groove is made smaller than the opening width, the groove width is narrow, so that foreign matters such as dust and dust are easily collected. In addition, it becomes a home for mites, bacteria, and other microorganisms. Thus, since the width of the lower part of a groove | channel is small compared with the opening width of a groove | channel in the conventional decorative board, foreign materials, such as dirt, dust, or microorganisms, are easy to accumulate in a groove | channel, and are not easily removed. If foreign matter accumulates in the groove, the appearance is impaired, which is not preferable for hygiene purposes.
[0005]
This invention makes it a subject that a foreign material does not accumulate easily in a groove | channel, and is easy to remove.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the present invention includes a substrate and a decorative material attached to one side of the substrate. Furthermore, a groove extending from the surface of the decorative material to the substrate is formed, and a wall surface of the groove has a curved surface formed on the substrate side from the surface of the decorative material, and a flat surface extending from the curved surface to the bottom of the groove. The curved surface includes a concave curved surface that is recessed toward the substrate side, and the flat surface is formed so that an angle with the vertical surface exceeds 30 degrees.
[0007]
By doing so, the plane is formed so that the angle formed with the vertical plane exceeds 30 degrees, so the angle formed between the two planes on both sides of the groove exceeds 60 degrees, and the lower portion of the groove is greatly opened. V-shaped. Further, curved surfaces extend from the ends of both planes forming the V shape. This curved surface includes a concave curved surface that is recessed toward the substrate. Thus, the groove has an opening width that is larger than the opening width formed by the virtual extension surface of the flat surface forming the V-shape at the surface position of the decorative material. Since the groove has a large opening, foreign matters such as dust, dust, mites, bacteria, and other microorganisms are difficult to accumulate (is difficult to accumulate) and are easily removed by cleaning or the like. Therefore, it is hygienic.
[0008]
Further, since the curved surface is provided on the opening side of the groove and includes a concave curved surface that is recessed on the substrate side, the light reflection direction of the concave curved surface is different from other portions. Since the reflection direction of the light of the concave curved surface is different from that of other portions, the groove can be emphasized and a high-class feeling can be obtained. Furthermore, the concave curved surface prevents the opening width from being unnecessarily widened even when the V-shaped groove at the bottom of the groove has a large opening, and has an appropriate groove opening width. Furthermore, if this decorative board is used as a floor board, the concave curved surface of the groove becomes an appropriate slipper and has a good feeling of walking.
[0009]
In addition, the surface of the decorative material and the surface of the groove may be painted. By coating the surface of the decorative material and the groove, the base material of the substrate in the groove is covered, the texture of the surface of the decorative material and the surface of the groove is unified, and the value as a decorative board can be improved. .
[0010]
In addition, the decorative board of the present invention has a wall surface of the groove when a V-shaped groove extending from the surface of the decorative material to the substrate is formed after the decorative material is attached to one side of the substrate. It is formed so that the angle formed with the vertical plane exceeds 30 degrees. Next, when the opening side of the groove is pressed, a concave curved surface that is recessed toward the substrate side is provided, whereby the decorative board of the present invention is manufactured. According to this manufacturing method, it is possible to form a groove without fuzzing or flapping, and to improve workability.
[0011]
Next, each requirement constituting the present invention will be described in more detail. The substrate is a plywood having a thickness of about 2.0 to 12 mm, a laminated board, a single board laminate (LVL), a particle board or a soft fiber board (insulation board), a medium fiber board (MDF), a hard fiber board ( Hard board), or wooden boards made of finely cemented wood and cemented, mineral-impregnated wood boards, calcium silicate boards, gypsum boards, gypsum slag boards, calcium carbonate boards, glass fiber boards, etc. Etc. can be used.
[0012]
The decorative material is attached to the surface of one side of the substrate, for example, a natural veneer obtained by cutting natural wood, an artificially produced artificial veneer, non-woven fabric, paper, synthetic resin, etc. can be used. Various wood grain patterns and other patterns may be printed. The thickness of the decorative material is, for example, about 0.05 to 1 mm. The decorative material may be attached to the surface on one side of the substrate via an adhesive. In this case, as an adhesive, the vinyl acetate resin system, ethylene vinyl acetate resin system, urea resin system, melamine resin system, phenol resin system, aqueous vinyl urethane resin system, rubber system, etc. Selected.
[0013]
The grooves formed in the decorative board are symmetrical with respect to the vertical plane. The lower part of the groove is formed in a V-shaped cross section, and two planes of the lower both walls of the groove formed in the V-shaped cross section abut at the bottom of the groove. The angle formed by the vertical plane and the lower plane of the groove is formed so as to exceed 30 degrees, and preferably 35 to 50 degrees (the angle between both wall surfaces of the V-shaped groove is 70 to 100 degrees). . When the angle formed by the vertical plane and the lower plane of the groove is 30 degrees or less, foreign matter tends to accumulate in the groove. The larger the angle formed by the vertical plane and the lower plane of the groove, the less foreign matter is accumulated, but the emphasis as a groove of the decorative plate is reduced and the design is inferior. The V-shaped groove is preferably formed by cutting, embossing, or a combination of both. For these processes, for example, a cutting machine or a press machine for embossing is used.
[0014]
Although the position of the groove | channel provided in a decorative board is not specifically limited, It is suitably provided with the use of a decorative board. For example, when a decorative board is used as a floor board, one or a plurality of parallel grooves are provided in the longitudinal direction (or one direction) at an appropriate interval. Further, one or a plurality of grooves may be provided at appropriate intervals in a short direction (usually orthogonal) intersecting the longitudinal direction (or the other direction intersecting one direction).
[0015]
The opening side of the groove is a curved surface, and the curved surface includes at least one concave curved surface. The concave curved surface is recessed toward the substrate side. The curved surface may be only one or more concave curved surfaces, but may be formed by appropriately combining concave curved surfaces and convex curved surfaces. The type of the curved surface is appropriately selected using, for example, an arc, an ellipse, a parabola, a part of another curve, or a combination of these.
[0016]
In addition, the connecting portions between the concave curved surfaces or the convex curved surfaces, or the connecting portion between the concave curved surface or the convex curved surface and the straight portion may be inflectionally connected without rounding or chamfering, but the convex portion having a small curvature radius may be used. The curved surface may be rounded and smoothly connected, or chamfered. The curved surface is formed by pressing the opening edge or the opening side of the groove with a fixed mold or a rotating roll. In this case, the pressing surface of the mold or rotating roll is preferably convex. A concave curved surface is easily formed by making the pressing surface of the mold or the rotating roll convex.
[0017]
Furthermore, the curved surface is preferably processed in several stages. In the initial stage, pressing is performed by a mold or a rotating roll having a pressing surface with a small curvature radius, and a mold or rotating roll having a pressing surface having a large curvature radius is used in a later stage. When the opening edge or the opening side of the V-shaped groove is pressed by a mold or a rotating roll, the pressing force is applied to such an extent that the decorative material or the substrate is recessed in the case of a concave curved surface. In the case of a convex curved surface, the pressure is applied to such an extent that the decorative material or the substrate is not recessed. The wall surface of the groove of the present invention is formed by a curved surface and a flat surface, and has a decorative material exposed surface corresponding to the thickness of the decorative material and a substrate exposed surface from which the substrate is exposed.
[0018]
The surface of the decorative material and the surface of the groove are painted. In this case, the paint is a resin such as acrylic urethane, polyester urethane, polyurethane, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl acetate copolymer, etc. Is preferably selected in consideration of the application and use conditions of the decorative board.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a decorative board and a manufacturing method thereof according to the present invention will be described in detail with reference to the drawings. 1 to 4, the same or equivalent parts are denoted by the same reference numerals.
[0020]
FIG. 1 is a cross-sectional view of an essential part showing an embodiment of a decorative board according to the present invention. The decorative board 1 of the present embodiment is used as a flooring material for a house or the like, and includes a substrate 3 and a decorative material 8 attached to one side of the substrate 3. Furthermore, a groove 11 extending from the surface 9 of the decorative material to the substrate 3 is formed. The groove 11 is symmetrical with respect to the central vertical plane 22. The wall surface of the groove 11 is formed by the curved surface 12 and the flat surface 18.
[0021]
The curved surface 12 includes concave curved surfaces 13a and 13b that are recessed from the surface 9 of the decorative material toward the substrate 3 side. The flat surface 18 extends from the substrate-side end 15 of the curved surface 12 to the bottom 20 of the groove, and is formed so that an angle α formed with the vertical surface 22 is 45 degrees. Accordingly, the angle β between the two flat surfaces 18 of the lower both walls of the groove is 90 degrees.
[0022]
Further, in the present embodiment, the substrate-side end 15 position of the curved surface 12 is located on the substrate side with respect to the position corresponding to the thickness of the decorative material 8, but may not be located on the substrate side (the decorative material 8). May be located above). Further, the curved substrate side end 15, the decorative material side end 16 and the intermediate end 17 are not smoothly connected to each other, but may be rounded and smoothly connected by a convex curved surface or an arc surface having a small curvature radius. You may chamfer. The curved surface 12 is formed so as not to protrude outward from the virtual extension surface 19 of the flat surface 18. The wall surface of the groove 11 has a decorative material exposed surface 10 corresponding to the thickness T of the decorative material and a substrate exposed surface 7 corresponding to the substrate 3. Incidentally, the decorative material exposed surface 10 and the substrate exposed surface 7 do not necessarily correspond to the curved surface 12 and the flat surface 18, respectively.
[0023]
In the decorative board 1 of the present embodiment, the surface 9 of the decorative material and the surface of the groove 11 are painted. Moreover, the position of the groove | channel 11 provided in the decorative board 1 is suitably provided according to the conditions in which a flooring is used. For example, a plurality of grooves 11 extending in the longitudinal direction of the flooring are provided in parallel at appropriate intervals. Furthermore, the grooves 11 extending in the short direction perpendicular to the longitudinal direction may be provided at appropriate intervals.
[0024]
The substrate 3 is a plywood or a laminated material having a thickness of 12 mm, for example. The decorative material 8 is attached to the surface of one side of the substrate 3. As the decorative material 8, for example, a natural veneer obtained by cutting natural wood or an artificial veneer manufactured artificially is used. Various wood grain patterns and other patterns are formed on the decorative material 8. The thickness of the decorative material 8 is, for example, about 0.1 to 0.5 mm.
[0025]
2 shows a manufacturing method of the decorative board 1 shown in FIG. 1, (A) is a cross-sectional view of the main part of the substrate 3, (B) is a cross-sectional view of the main part in which the decorative material 8 is attached to the substrate 3, FIG. 3C is a cross-sectional view of a main part in which a V-shaped groove 11a is formed on the decorative board 1. As shown in FIG. 2B, the decorative material 8 is attached to one side of the substrate 3 as shown in FIG. 2A using an adhesive such as a vinyl acetate resin. Next, as shown in FIG. 2C, a V-shaped groove 11a extending from the surface 9 of the decorative material to the substrate 3 is cut. At this time, the angle formed between the flat surface 18 of the groove and the vertical surface 22 is formed to be 45 degrees. The V-shaped groove 11a is formed using a cutting machine such as a molder.
[0026]
3 shows a manufacturing method of the decorative board 1 following FIG. 2, (D) is a cross-sectional view of the main part where the opening edge 21 is pressed by the first roll 23, and (E) is an opening by the second roll 29. FIG. 2F is a cross-sectional view of a main part in which the side is further pressed, and FIG. As shown in FIG. 3D, the processing of the curved surface 12 is performed by pressing and pressing the roll surface of the first roll 23 against the opening edge 21 of the V-shaped groove 11a. As a result, a concave curved surface 13b which is a primary arc surface recessed inward is formed. After the concave curved surface 13b is formed in the groove 11a, as shown in FIG. 3 (E), the roll surface of the second roll 29 is pressed against the opening edge of the concave curved surface 13b and shown in FIG. 3 (F). The concave curved surface 13a which is such a final secondary circular arc surface is formed, and the groove 11 is finally obtained.
[0027]
3 (D) and 3 (E), the first roll 23 and the second roll 29 are formed around the edge of the V-shaped groove 11a or after that while rotating about the shafts 26 and 33, respectively. Pressed against the edge. Further, the roll surfaces of the first roll 23 and the second roll 29 have a convexly expanded surface, and the curvature radius R1 of the roll surface of the first roll 23 is the second roll 29. It is smaller than the curvature radius R2 of the roll surface. In the present embodiment, two of the first roll 23 and the second roll 29 are used. However, the present invention is not limited to this, and three or more rotating rolls may be used. In this case, the radius of curvature (R1, R2,...) Of the roll surface is increased as it is used in the subsequent process.
[0028]
The decorative board 1 of this embodiment demonstrated above acts as follows. That is, in FIG. 1, the wall surface of the groove 11 has a curved surface 12 formed on the substrate 3 side from the surface 9 of the decorative material, and a flat surface 18 extending from the curved surface 12 to the bottom 20 of the groove. Since the flat surface 18 is formed at an angle α of 45 degrees with the vertical surface 22, the angle β formed by the two flat surfaces of the lower wall surfaces of the groove 11 is naturally 90 degrees, and the lower portion of the groove is greatly opened.
[0029]
Further, the curved surface 12 extends from both ends of the flat surface 18 forming the V-shaped groove to the surface 9 of the decorative material. Since the curved surface 12 has concave curved surfaces 13a and 13b that are recessed toward the substrate 3, the groove 11 has an opening width formed by the virtual extension surface 19 of the flat surface 18 forming the V-shaped groove at the position of the surface 9 of the decorative material. It will have a larger opening width. Thus, since the groove | channel 11 is opened large, foreign materials, such as dust, dust, a tick, bacteria, and other microorganisms, do not accumulate easily. Even if foreign matter accumulates in the groove 11, it is removed by cleaning because the opening width of the groove 11 is large and the wall surface forming the V shape at the bottom of the groove is wide open. Therefore, it is hygienic.
[0030]
Further, since the curved surface 12 includes the concave curved surfaces 13a and 13b, the reflection of light in this portion is different from the other portions, and the groove 11 is emphasized, and a high-class feeling can be obtained. Furthermore, since the groove 11 includes the concave curved surfaces 13a and 13b, the opening width of the groove 11 is not unnecessarily widened even when the V-shaped groove 11a (shown in FIGS. 2 and 3) at the lower part of the groove opens widely. .
[0031]
Moreover, since the base material of the cosmetic material 8 and the board | substrate 3 is covered by coating the surface 9 of a cosmetic material, the curved surface 12 and the flat surface 18 of a groove | channel, the texture of the surface of the cosmetic material 8 and the surface in the groove | channel 11 is carried out. A unified, high-quality appearance can be obtained. Furthermore, if the decorative board 1 is used as a floor board, the concave curved surfaces 13a and 13b become appropriate slip stoppers and become floor boards with good walking feeling.
[0032]
FIG. 4 shows another embodiment of the decorative board according to the present invention. FIG. 4A is a cross-sectional view of the main part of the decorative board 1 in which the curved surface 12 is formed in the order of the concave curved surface 13a and the convex curved surface 14 from the decorative material 8 side. (B) is principal part sectional drawing of the decorative board in which the curved surface 12 was formed in order of the convex curved surface 14 and the concave curved surface 13b from the decorative material 8 side. The decorative board 1 shown in FIG. 4A is different from the decorative board shown in FIGS. 1 to 3 in that the curved surface 12 of the groove is formed by a concave curved surface 13 a and a convex curved surface 14. Moreover, the decorative board 1 shown in FIG. 4 (B) is that the curved surface 12 is formed of a convex curved surface 14 and a concave curved surface 13b.
[0033]
Thus, the curved surface 12 of the groove may be a concave curved surface and a convex curved surface. In addition, the decorative material side end 16 of the curved surface 12 in FIG. 4A and the substrate side end 15 of the curved surface 12 in FIG. 4B are formed on a convex curved surface or an arc surface with a small radius of curvature to be rounded. Chamfering has been made. In the decorative board 1 shown in FIGS. 4A and 4B, the groove is emphasized by changing the shape of the curved surface 12 of the groove so that the reflection of light in this part is different from that of the other parts. A pleasing appearance can be obtained. Furthermore, since the curved surface 12 includes the concave curved surface 13a or the concave curved surface 13b, similarly to the groove of the decorative board shown in FIGS. 1 to 3, the groove 11 is formed even when the V-shaped groove at the lower portion of the groove is greatly opened. The opening width of the is not unnecessarily widened. In addition, since the structure and effect | action of the other part of FIG. 4 (A), (B) are the same as the case of the decorative board 1 quoted in FIGS. 1-3, the description is abbreviate | omitted.
[0034]
Although the present invention has been described in detail with reference to the illustrated embodiments, the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the present invention. It goes without saying that various modifications can be made.
[0035]
【The invention's effect】
According to the present invention, foreign matters such as dust, dust, and microorganisms are not easily accumulated in the groove and are easily removed.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an essential part showing an embodiment of a decorative board according to the present invention.
2A and 2B show a manufacturing method of the decorative board 1 shown in FIG. 1, wherein FIG. 2A is a cross-sectional view of a main part of the substrate, FIG. 2B is a cross-sectional view of a main part in which a decorative material is adhered to the substrate; FIG. 3 is a cross-sectional view of a main part in which a V-shaped groove is formed on a decorative board.
FIG. 3 shows a manufacturing method of a decorative board following FIG. 2, wherein (D) is a cross-sectional view of the main part in a state where the opening edge is pressed by the first roll, and (E) is a further view of the opening side of the second roll. The principal part sectional drawing of the state pressed, (F) is principal part sectional drawing by which the groove | channel was formed in the decorative board.
4A and 4B show another embodiment of a decorative board according to the present invention, in which FIG. 4A is a cross-sectional view of an essential part of a decorative board in which curved surfaces are formed in order of a concave curved surface and a convex curved surface from the decorative material side, and FIG. It is principal part sectional drawing of the decorative board in which the curved surface was formed in order of the convex curved surface and the concave curved surface from the decorative material side.
[Explanation of symbols]
1 decorative plate 3 substrate 8 decorative material 9 surface 11 groove 12 curved surface 13a, 13b concave curved surface 14 convex curved surface 18 flat surface 20 bottom 22 vertical surface T thickness of cosmetic material

Claims (3)

A substrate and a decorative material attached to one side of the substrate, wherein a groove extending from the surface of the decorative material to the substrate is formed, and a wall surface of the groove extends from the surface of the decorative material to the substrate side. A curved surface formed and a flat surface extending from the curved surface to the bottom of the groove, the curved surface including a concave curved surface recessed toward the substrate, and the angle between the flat surface and a vertical surface exceeds 30 degrees. A decorative board formed as described above. The decorative board according to claim 1, wherein a coating is applied to a surface of the decorative material and a surface of the groove. After the decorative material is attached to one side of the substrate, when the V-shaped groove extending from the surface of the decorative material to the substrate is formed, the angle formed between the wall surface of the groove and the vertical surface is A method for manufacturing a decorative board, characterized in that the decorative board is formed so as to exceed 30 degrees, and then a concave curved surface is provided which is depressed on the substrate side by pressing the opening side of the groove.

Images