JPS5853381Y2 - decorative board - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a decorative laminate, and more particularly, to an improvement in the notch or molded shape of the decorative sheet end of a decorative laminate in which a decorative sheet is pasted up to the joint portion of the decorative laminate.

Conventionally, in a decorative board in which a decorative sheet is pasted up to the joint in which the male and female are connected with a notch with a complementary relationship, the decorative sheet 2 at the tip of the male convex portion 4 is connected to the male convex portion 4, as shown in FIG. Since the decorative sheet 2 was cut almost perpendicular to the horizontal surface 6 of the male protrusion 4 along the tip of the male protrusion 4, the tip of the decorative sheet 2 often had a sharp corner or protruded beyond the male protrusion 4.

Therefore, when constructing the decorative board, the end of the decorative sheet 2 at the tip of the male convex part 4 hits the female concave part 5, and the decorative sheet 2 of the male convex part 4 tends to peel off.
This caused the eyes to become transparent, and the adhesive performance of the decorative sheet was compromised due to water absorption from the peeled portion.

Therefore, in order to prevent the decorative sheet from peeling off during construction, a method was considered in which the decorative sheet 2 is rolled up to the side surface 7 of the male convex portion 4 or even to the back surface 8 as shown in Fig. 2, but this method is not suitable for manufacturing. The number of steps increases, and the required size of the decorative sheet 2 becomes larger, resulting in higher costs.Furthermore, if complete rolling and adhesion is not achieved, the decorative sheet 2 at the tip of the male convex portion 4 will bulge. During construction, the male convex portions 4 collided with the female concave portions 5, causing further peeling, and the male convex portions 4 could not completely prevent the decorative sheet 2 from peeling off.

The present invention solves the above-mentioned problems and provides a decorative board with a structure in which the decorative sheet on the male convex portions is difficult to peel off when the decorative board is installed with the decorative sheet pasted up to the joints.

The structure is such that in the decorative boards that can be successively connected in the connecting direction, male and female notches are provided at both ends in the connection direction of the decorative board to which the decorative sheet is attached, and male convex portions 4 in the longitudinal cross section of the joint part are provided. The ends of the decorative sheet 2 are cut or shaped so that the angle θ between the horizontal surface 6 at the tip and the cut end surface 9 of the decorative sheet 2 attached to the male convex portion 4 of the decorative board is 60° or less. It relates to a decorative board that is characterized by:

The present invention will be described in detail below based on the illustrated embodiments.

3 to 6 show cross-sectional views of decorative laminates according to embodiments of the present invention.

1 is a commonly used substrate such as a wooden board such as plywood, particle board, or hardboard, or an inorganic board such as an asbestos cement board.

Reference numeral 2 denotes a commonly used decorative sheet such as decorative paper or synthetic resin film, which is adhered to the decorative board via a commonly used adhesive 3.

4 is the male convex part of the decorative board, 5 is the four female parts, 4 and 5 are used to form a joint, FIG. 4 shows the actual board, FIG. 5 shows the mating part, and FIG. 6 shows another embodiment.

6, 7 and 8 are the horizontal surface of the male convex sheet, the side surface and the back surface of the base material, respectively.

9 shows the side surface of the cut surface of the tip of the male convex portion of the decorative sheet.

According to the present invention, as shown in the above drawing, the angle θ between the horizontal surface 6 of the male convex portion and the tip 9 of the decorative sheet 2 is set to 60° or less, preferably 40°.
The decorative sheet at the tip of the male convex part can fit smoothly without hitting the female concave part, and the decorative sheet at the tip of the male convex part can be fitted smoothly. Since it is possible to prevent peeling to the decorative sheet 1 at the tip of the male convex portion during construction, it is difficult to peel off to the decorative sheet 1 at the tip of the male convex portion, and it is possible to prevent bonding defects such as misalignment of the decorative board and see-through.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a conventional decorative board, FIG. 2 is a cross-sectional view of a conventional decorative board with another structure, and FIGS. 3 to 6 are cross-sectional views showing embodiments of the decorative board of the present invention. 1...Substrate, 2...Decorative sheet, 3.
...Adhesive, 4...Noise part, 5...
...Female recess, 6...Noise part horizontal surface, 7...
・・Noise part side view, 8 ・・・・Noise part back side, 9...
...Cut surface of the decorative sheet at the tip of the male convex part.

Claims (1)

[Scope of utility model registration request] In a decorative board that can be sequentially connected in the connecting direction by providing notches in a mutually complementary relationship of male and female at both ends of the decorative board in the connecting direction, the horizontal surface of the tip of the male convex part 4 in the longitudinal cross section of the joint part. 6 and the end cut surface 9 of the decorative sheet 2 attached to the male convex portion 4 of the decorative board, the end of the decorative sheet 2 is cut or molded so that the angle θ is 60° or less. Decorative board.