JP3860373B2 - Production method of wooden flooring - Google Patents

Description

[0001]
[Industrial application fields]
The present invention, for construction of residential wood flooring, particularly, to a method for manufacturing a wood flooring that attaching a decorative sheet to the surface.
[0002]
[Prior art]
In recent years, decorative sheets such as resin films and resin-reinforced decorative paper have been attached to the substrate surface, instead of flooring made of natural natural wood and wooden flooring with a decorative veneer on the surface. Wooden flooring is widely used. The decorative sheet adhered to the substrate surface has a constant quality, and the appearance and durability are almost the same as the decorative veneer due to the improvement of printing technology and resin composition. In addition, it has the advantage of being able to produce an excellent decorative sheet-attached wood floor material at low cost and in large quantities.
[0003]
[Problems to be solved by the invention]
However, the wooden floor material is usually provided with a groove serving as a pseudo joint, and this groove processing is performed by sticking a decorative sheet on the surface of the substrate and then pressing a blade having a V-shaped cross section on the surface. Therefore, the groove portion has a structure in which the decorative sheet is cut by a sharp cutting edge. Therefore, when a deep groove is formed, the base material fabric is exposed on both side groove wall surfaces of the V-shaped groove. There was a problem that the hue of the decorative sheet on the surface was different, giving a sense of incongruity and reducing the product value. For this reason, only a comparatively shallow and thin groove | channel can be formed, and it was inferior to a three-dimensional feeling and a high-class feeling.
[0004]
Furthermore, even if the decorative sheet is in close contact from the substrate surface until it reaches the groove bottom, if the decorative sheet is cut at the groove bottom, the decorative sheet is peeled off or curled after the cut ends. As a result, there is a problem that not only the appearance is remarkably impaired, but also durability such as water resistance is lowered and it cannot be used for a long time. Further, when the decorative sheet is pasted after the groove is engraved on the substrate surface, the groove bottom of the groove b engraved on the surface of the substrate a is engraved on an acute bottom surface as shown in FIG. Therefore, even if the decorative sheet c is immersed in the groove b, since the decorative sheet c has a thickness, the decorative sheet c cannot be brought into close contact with the bottom of the groove, and the three-dimensional effect is remarkably hindered by rising. However, there is a problem that a uniform wooden flooring cannot be obtained.
[0005]
The present invention has been made in view of such problems, and the object of the present invention is to provide an excellent appearance, rich in three-dimensionality and luxury, and can be used for a long time without fear of peeling off. An object of the present invention is to provide a production method capable of industrially mass-producing wood floor materials that can withstand.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a method for producing a wood floor material according to the present invention provides a flat surface having a narrow width of 0.2 mm or more and less than 1.0 mm over the entire length of a groove bottom on the surface of a substrate made of wood board. engraving the blade body a groove from both ends toward the substrate surface are formed in an inclined wall which is inclined widely made direction groove width of the V-shaped cross section of the bottom of both side groove walls with are formed on the bottom surface After that, an adhesive is applied to the entire surface of the substrate including the surfaces of these grooves, and then a decorative sheet having a thickness smaller than the width of the flat bottom surface of the groove is laminated and pasted on the substrate surface. The decorative sheet portion that is worn and covers the groove portion is pushed into the groove so as to be in close contact with the flat bottom surface from the both-side groove wall surfaces of the groove.
[0007]
[Action]
The bottom surface of the groove engraved on the substrate surface is formed as a narrow flat surface, and a decorative sheet is attached to the surface of the substrate provided with this groove. Even if the groove is deep and the groove width is wide, the decorative sheet is adhered to the inclined wall surface of the groove without being cut. Therefore, it is possible to provide a decorative sheet-attached wooden floor material that exhibits an excellent appearance without exposing the substrate surface to the inclined wall surface of the groove. In addition, since the bottom surface of the groove is formed on a narrow flat surface, the decorative sheet does not float up, and the structure firmly adheres to the bottom surface of the groove. It can be used for long-term use with excellent durability.
[0008]
In addition, since the above-mentioned method for producing a wooden floor material is a groove processing in which a groove bottom is formed in advance on a narrow flat surface over the entire length, a groove having a deep and wide constant cross-sectional shape. After this groove processing, the decorative sheet is attached to the substrate surface and the decorative sheet portion covering the groove is immersed in the groove. Since the bottom of the groove is formed on a flat and narrow surface over the entire length as described above, the decorative sheet does not float and there is no risk of breakage. It is possible to produce a large amount of a wooden flooring with a decorative sheet adhered to the bottom and uniform and exhibiting an excellent appearance at low cost.
[0009]
【Example】
Next, a specific embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a wooden floor substrate made of a rectangular plate having a thickness of 12 to 20 mm. Grooves (hereinafter referred to as vertical grooves) 2 and 2 forming pseudo joints parallel to the long side are engraved over the entire length at regular intervals in the width direction, and between adjacent vertical grooves 2 and 2 and the substrate. Between the long side of 1 and the vertical groove 2 adjacent to the long side, a horizontal groove 3 is formed in the length direction of the substrate 1 to form pseudo joints at predetermined intervals. These vertical grooves 2 and horizontal grooves 3 are formed in a V-shaped cross section in which the groove bottom forms a narrow flat surface. Specifically, as shown in FIGS. 2 and 3, the bottoms of the grooves are formed on flat bottom surfaces 2a and 3a having a width of 0.2 mm or more and less than 1.0 mm, and both ends of these bottom surfaces 2a and 3a are formed. Both side groove wall surfaces 2b and 3b from the surface toward the surface of the base material 1 are formed on inclined wall surfaces in which the groove width gradually increases.
[0010]
The board 1 may be a wood board in which the grooves 2 and 3 can be engraved. For example, a plywood board, an LVL (gathered material), a particle board, an MDF (medium density fiber board), or a laminated board thereof is used. Can do. Further, both side wall surfaces 2b and 3b of the vertical groove 2 and the horizontal groove 3 are V joints inclined in a straight line section from the both ends of the flat bottom surfaces 2a and 3a toward the surface of the substrate 1 as shown in FIG. It may be formed on an inclined wall surface, and as shown in FIG. 3, it is formed on an inclined wall surface of an R joint curved in a convex arc shape from the both side edges of the flat bottom surfaces 2a and 3a toward the surface of the substrate 1. It may be left.
[0011]
Further, the peripheral edge of the four sides on the surface side of the substrate 1 is chamfered into the same shape as the both side groove wall surfaces 2b and 3b to form the inclined end surface 4, and the male and female real parts 5 and 6 are formed on the four side end surfaces. Has been.
[0012]
Reference numeral 7 denotes a decorative sheet adhered to the entire surface of the substrate 1. The vertical groove 2 and the horizontal groove 3 are in close contact with the flat bottom surfaces 2a and 3a from both side wall surfaces 2b and 3b. It is stuck on the entire surface. Such a decorative sheet 7 is a sheet whose thickness is thinner than the width of the flat bottom surfaces 2a, 3a of the grooves 2, 3, and is made of resin film such as vinyl chloride, polyethylene, polypropylene, or printing paper. A decorative sheet formed by impregnating with a coating or resin can be used. And the wooden flooring A is comprised by sticking this decorative sheet 7 on the whole surface of the board | substrate 1. FIG. In addition, when using printing paper, it is preferable to perform the coating which added the lubricant after sticking.
[0013]
In the wooden flooring A thus configured, if the width of the flat bottom surfaces 2a and 3a of the vertical groove 2 and the horizontal groove 3 engraved on the surface of the substrate 1 is less than 0.2 mm, the decorative sheet 7 is It becomes difficult to immerse the bottom surfaces 2a and 3a, resulting in poor adhesion, and the depth of the pseudo joints of the wooden flooring A which is lifted from the groove bottom and formed by these grooves 2 and 3 becomes shallow. In addition to impairing the feeling, there is a possibility that the decorative sheet may be rolled up due to breakage from the raised part.On the other hand, if the width of the bottom surface is 1.0 mm or more, the appearance as a pseudo joint is uncomfortable and unnatural in design. Therefore, as described above, the flat bottom surfaces 2a and 3a of the grooves 2 and 3 are formed to have a width of 0.2 mm or more and less than 1.0 mm.
[0014]
Next, the manufacturing method of the wooden flooring A will be described. As shown in FIG. 4, the protrusion having a V-shaped cross section formed on the cutting edge 12 whose tip surface is a narrow flat surface over the entire length. The pressing plate is formed on the surface of the substrate 1 by using a groove processing tool in which the blade body 11 is projected on the lower surface of the pressing plate 10 corresponding to the engraved portions of the vertical grooves 2 and the horizontal grooves 3 of the substrate 1. As shown in FIG. 5, the flat bottom surface 2 a, 3 a and the cross-section V-shaped inclined toward the surface of the substrate 1 from both side ends of the bottom surface 2 a, 3 a on the substrate 1 by pressing 10. A groove 2 or 3 is formed. The groove processing tool is not limited to the pressing plate 10 and may be a roll body projecting the blade body 11, and a shaft body formed with the blade body 11 at the tip is rotated. However, the groove processing may be performed by moving in the horizontal direction.
[0015]
In this way, the groove bottom is formed on the surface of the substrate 1 on the flat bottom surfaces 2a and 3a having a narrow width over the entire length, and the both-side groove wall surfaces 2b and 3b are inclined surfaces inclined obliquely upward from both side edges of the bottom surfaces 2a and 3a. After the V-shaped vertical grooves 2 and the horizontal grooves 3 are formed, an adhesive is applied to the entire surface of the substrate 1 including the surfaces of the grooves 2 and 3, and then the decorative sheet 7. Are laminated on the substrate 1 and the decorative sheet 7 is adhered to the surface of the substrate by a lapping method or a curved surface press, and the decorative sheet portion covering the grooves 2 and 3 is pushed into the grooves 2 and 3, From 2b and 3b to the flat bottom surfaces 2a and 3a having narrow widths, they are brought into close contact with each other and are integrally attached to the grooves 2 and 3. Two decorative sheets may be arranged on the surface of the substrate 1 and adhered to the entire surface. However, it is more seamless to apply one unbroken decorative sheet to the entire surface of the substrate 1. It is possible to obtain a clean makeup without fear of dripping, and to simplify the work.
[0016]
The wooden flooring A manufactured in this way is constructed by laying a plurality of wooden flooring materials A and 6 on the floor base surface while engaging the male and female real parts 5 and 6 facing each other. In A, joints having the same shape and the same size as the grooves 2 and 3 are formed by the inclined end surfaces 4 and 4.
[0017]
【The invention's effect】
As described above , according to the present invention , there is a wooden floor material obtained by sticking a decorative sheet to the entire surface of a substrate having grooves formed on the surface thereof, which is engraved on the surface of the substrate. The groove has a groove bottom formed on a flat surface with a narrow width, and both side groove wall surfaces are formed on inclined wall surfaces inclined in a direction in which the groove width becomes wider from both side ends of the flat bottom surface toward the substrate surface. In addition, the decorative sheet is adhered to the entire surface of the substrate after the groove is engraved, and the groove is continuously adhered to the flat bottom surface from the groove wall surfaces on both sides of the groove. The fabric is not exposed, and the entire surface is covered with a decorative sheet from the surface of the substrate to the bottom surface of the groove, and the product value can be increased by providing a beautiful appearance.
[0018]
Furthermore, since the bottom surface of the groove engraved on the substrate surface is formed as a narrow flat surface as described above, the decorative sheet is securely adhered to the bottom surface of the groove even when a deep groove is engraved. Therefore, it is possible to provide an excellent wooden flooring material rich in three-dimensionality and luxury, and in addition, the groove is covered with a decorative sheet from the groove bottom to both sides of the groove wall without any breaks. Therefore, the water resistance and the stain resistance are improved, and the decorative sheet can be used for a long period of time without fear of peeling or dripping.
[0019]
Further, according to the method for producing a wood floor material of the present invention, after the groove bottom is previously engraved with a groove having a V-shaped cross section formed on a flat surface with a narrow width over the entire length, the entire surface of the substrate is formed. Since the decorative sheet portion is attached to the groove portion, the decorative sheet portion covering the groove portion is immersed in the groove, and is continuously adhered from the groove wall surfaces on both sides of the groove to the flat bottom surface. Since the groove bottom is formed on the substrate surface in advance so that the groove bottom is formed on a flat surface with a narrow width, it is possible to easily and accurately engrave a groove having a deep and wide constant cross-sectional shape. After the groove processing, the decorative sheet is pasted on the surface of the substrate and the decorative sheet portion covering the groove is pushed into the groove, so that the groove bottom can be closely adhered to the inclined wall surface of the groove. Since it is formed on a narrow flat surface over the entire length as described above A low-cost and large-scale production of a wooden flooring with a decorative sheet that can be reliably and easily adhered to the bottom of the groove without causing the decorative sheet to float or be damaged. can do.
[Brief description of the drawings]
FIG. 1 is a perspective view of a wooden flooring,
FIG. 2 is an enlarged longitudinal sectional view of the groove part,
FIG. 3 is an enlarged longitudinal sectional view of a groove portion showing another embodiment,
FIG. 4 is a simplified longitudinal sectional view just before grooving a substrate,
FIG. 5 is a simplified longitudinal sectional view after grooving,
FIG. 6 is a longitudinal sectional view of a part with a decorative sheet attached,
FIG. 7 is a longitudinal sectional view showing a conventional example.
[Explanation of symbols]
1 Wood substrate 2, 3 groove
2a, 3a Flat bottom
2b, 3b Groove wall on both sides 7 Decorative sheet
11 Blade
12 cutting edge

Claims (1)

On the surface of the board made of wood board , the groove bottom width is formed on a flat bottom surface with a narrow width of 0.2 mm or more and less than 1.0 mm over the entire length, and both side groove wall surfaces from the both sides of this bottom surface to the substrate surface After the grooves formed on the inclined wall surface inclined in the direction in which the groove width becomes wider toward the surface by the blade body having a V-shaped cross section, the adhesive is applied to the entire surface of the substrate including the surfaces of these grooves. coated, accordingly Thereafter, the pushes the decorative sheet portion thickness to the substrate surface covers the groove while stuck by superimposing thin decorative sheet than the width of the flat bottom of the groove in the groove A method for producing a wooden floor material, characterized by continuously adhering from both side wall surfaces of a groove to the flat bottom surface.

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