JPH07166674A - Facing plate - Google Patents

Abstract

PURPOSE:To prevent formation of a step in a joint part even in the case of execution and after the execution irrespective of good or bad in a plane state of a substrate. CONSTITUTION:A lower side projection 5 projecting a rear side basic material 3 by specific width from a front side basic material 2 is provided to one side edge as a joint end edge, and an upper side projection 6 projecting the front side basic material 2 by width wider than the rear side basic material 3 therefrom is provided to the other side edge. In addition, an inclined surface 7a making an acute angle at a facing sheet 4 side is provided to the end face 7 of the front side basic material 2 in one side edge, an inclined surface 8a making an obtuse angle at the facing sheet 4 side is provided to the end face 8 of the front side basic material in the other side edge, and their angles of inclination are so set that inclinations are brought into contact with each other or spread inward in the case both inclined surfaces 7a and 8a are faced to each other. If necessary, a plurality of nail-holes 11 having enough size to which heads of nails are fitted are formed lengthwise in the lower side projection 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative board used for interior decoration of walls and ceilings of houses and the like.

[0002]

2. Description of the Related Art Conventionally, when decorating walls and ceilings of houses and the like, a cloth, paper, synthetic resin sheet, or other decorative sheet is attached to the surface of a square substrate made of gypsum board, calcium silicate board, or the like. A veneer that is worn is generally used. Since the width of a normal decorative board is determined according to the interval between multiple pillar members (pillars or studs) that make up a wooden or steel substrate, when interior decoration is performed, it is assembled at regular intervals. The decorative pillars are attached to the base so that the joint edges of the decorative boards are abutted on each other.

[0003]

By the way, when forming a wooden substrate or a steel substrate, no matter how careful the worker is when assembling, the pillar member may not properly face the front and may be inclined or slightly protruded. Often withdrawn. Therefore, when the decorative plate as described above is continuously attached to such a base, there is a problem that a linear step is formed at the joint portion between the decorative plates located on the pillar member. In addition, especially in the case of a wooden base, even if the decorative plate is attached so that there is no step at the beginning, the column member will deform over time and the step will appear at the joint part. Is also happening frequently. When such a step is formed on the wall surface after interior decoration, the cut end surface of the decorative plate can be seen, and when light or sunlight is inserted from an oblique direction, shadows or reflections occur at the step and the joining occurs. The part was very noticeable and unsightly.

The present invention has been made in view of the above-mentioned problems, and an object thereof is to prevent a step from being formed at the joint portion regardless of whether the planar state of the base is good or bad. It is to provide a decorative board that can be used for interior decoration.

[0005]

In order to achieve the above object, a decorative board of the present invention comprises a substrate having a two-layer structure in which a front side base material and a back side base material are bonded together, and a front side base material bonded to the surface. A decorative sheet made of a decorative sheet, and one side edge serving as a joining edge is provided with a lower protrusion in which the back side substrate projects from the front side substrate by a predetermined width, and the joining edge. On the other side edge, the front side base material is provided with an upper protrusion protruding from the back side base material with a width larger than the width, and an acute angle on the decorative sheet side on the end surface of the front side base material at one side edge. Is provided, an inclined surface having an obtuse angle on the decorative sheet side is provided on the end surface of the front side base material at the other side edge, and the inclined surfaces contact each other when both inclined surfaces face each other, or Each tilt angle is set to spread inward It is characterized in that is.

[0006] It is preferable that at least the front-side substrate of the front-side substrate and the back-side substrate is made of a material having a uniform thickness.

Further, it is desirable that a plurality of nail holes each having a size in which a nail head is loosely fitted are formed on the front side of the lower protrusion in the longitudinal direction.

[0008]

In the decorative board of the present invention having the above-mentioned structure, the upper protruding portion at the other side edge of the next decorative board is placed on the lower protruding edge at one side edge of the previously installed decorative board. Then, they are continuously attached to the base by joining them. In this case, the end surfaces of the front side base material having the same thickness face each other, and since both end surfaces of the front side base material are provided with inclined surfaces respectively, the surface of the joint portion becomes flat and a step is generated. And the rise of the upper protrusion is prevented after joining. Also, in the case where a nail hole is formed in the lower protrusion of the decorative plate, one side of the decorative plate is fixed by hitting the nail head so that it enters the nail hole, and the upper protrusion of the next decorative plate is placed. At this time, the nails do not get in the way and there is a play between the nails that are struck and the decorative plate, so that the decorative plate is prevented from being fixed along the pillar member that is inclined or bent.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a partial cross-sectional view in the width direction showing a decorative board as one embodiment of the present invention.

As shown in FIG. 1, the decorative plate 1 includes a front side substrate 2
And a backside base material 3 bonded together with an adhesive, and a decorative sheet 4 bonded to the surface of the front side base material 2. In this embodiment, a corrugated cardboard is used as the front side base material 2. Is used as the back side base material 3.
The decorative plate 1 is continuously attached to a base with left and right side edges shown in the drawing as joining edges, and a back side base material 3 projects from the front side base material 2 by a predetermined width on one side edge. A lower protrusion 5 is provided, and an upper protrusion 6 is provided on the other side edge so that the front substrate 2 projects from the back substrate 3 with a width larger than the above width.

The end surface 7 of the front side base material 2 at one side edge is provided with an inclined surface 7a having an acute angle on the side of the decorative sheet 4, and the end surface 8 of the front side base material 2 at the other side edge is arranged at the side surface 8. An inclined surface 8a having an obtuse angle on the fourth side is provided, and in the present embodiment, right-angled butt end surfaces 7b and 8b are provided on the front sides of these inclined surfaces 7a and 8a, respectively. The inclination angles of the two inclined surfaces 7a and 8b are set so that the inclined surfaces 7a and 8a come into contact with each other when facing each other.

The lower protrusion 5 has a step 9 at the top.
Round holes 9 provided with a are provided at predetermined intervals along the length direction (direction perpendicular to the paper surface), and a reinforcing member 10 made of plastic is fitted into the round holes 9. The reinforcing member 10 has a cylindrical shape having the same height as the thickness of the back side base material 3 and a size in which the head of the nail is loosely fitted, and includes a bottom portion 10a having a hole a of a size through which the body of the nail passes. The upper portion has an outward flange portion 10b.
It is fitted and adhered into the round hole 9 without any gap so that b is on the step 9a of the round hole 9 and does not protrude from the surface of the lower protrusion 5. Therefore, the nails 11 formed by the cylindrical portion of the reinforcing member 10 are provided in the lower protrusion 5 along the length direction at predetermined intervals.

The decorative board 1 is obtained by attaching a decorative sheet 4 to a corrugated cardboard (front side base material 2) which has been subjected to appropriate flame retardant treatment, water resistant treatment and the like in addition to curing treatment for impregnating resin, Both side edges are cut to form inclined surfaces 7a, 8a and abutting end surfaces 7b, 8b, and the processed corrugated board is attached to a gypsum board (rear side base material 3) in which the reinforcing member 10 is fitted into the round hole 7 in advance. Created easily by matching. In addition, after pasting the corrugated board and the gypsum board,
It is also possible to provide the gypsum board with the round holes 9 so that the reinforcing member 10 is fitted therein.

The decorative plate 1 produced as described above is
Since there is an adhesive between the front-side base material 2 and the back-side base material 3, when the upper protrusion 6 of the adjacent decorative board 1 is placed on and bonded to the lower protrusion 5 of one decorative board 1. If you look closely, there will be gaps corresponding to the thickness of the adhesive.
Therefore, if this thickness is a concern, it is advisable to eliminate this gap by applying an adhesive agent to the surface of the lower protrusion 5 at appropriate intervals. Further, if the adhesive is applied on the lower protrusion 5 at the time of joining, this problem can be solved. In this case, therefore, it is not particularly necessary to apply the adhesive in advance.

When the interior of the wall surface is made using the above decorative plate 1, a plurality of decorative plates 1 are prepared, and these are continuously attached to a base assembled at the same intervals as the width of the decorative plate 1. . In this case, as shown in FIG. 2, the above decorative plate 1A is in a state in which the nail N is driven into the nail hole 11 of the lower protrusion 5 and the joint side thereof is fixed to the base pillar member P. Therefore, the adhesive is applied onto the lower protrusion 5 of the decorative plate 1A fixed in this way, and then the upper protrusion 6 of the next decorative plate 1B is placed and pushed in to the state shown in FIG. After the joining, the joining side on the opposite side of the next decorative plate 1B is similarly nailed and fixed.

When fixing the joint side of the decorative plate 1A with the nail N as shown in FIG. 2, the head of the nail N has a nail hole 11 in the lower protrusion 5.
Strike until you get in. By nailing in this manner, the head of the nail N is hidden in the nail hole 11, and the upper protrusion 6 of the next decorative plate 1B does not get caught on the head of the nail N and the lower protrusion 5 of the preceding decorative plate 1A is not covered. Placed along the top. Further, since the head of the nail N is loosely fitted into the nail hole 11, the decorative plate 1A does not follow the surface of the pillar member P and is flat even if the pillar member P is tilted or bent. Keep it fixed.

It should be noted that each decorative plate 1 may be attached to the pillar member P only by the nail N, but it may be fixed by using an adhesive together. If the adhesive is applied to the nail holes 11 before or after the nail N is hit, the rattling of the decorative plate can be reliably prevented. Needless to say, as the decorative plate located at the end of the wall surface or the ceiling, a straight plate without the side edge as described above is used on one side.

When the decorative plate 1 is continuously attached to the base as described above, the abutting end face 7b of the front side base material 2 of the preceding decorative plate 1A and the front side base material 2 of the next decorative plate 1B as shown in FIG. The abutting end surface 8b in FIG. 2 abuts, and the edges of the decorative sheet 4 are abutted against each other at the same height, so that the seam is inconspicuous. In addition, the two decorative plates 1A and 1B are provided with the inclined surface 7 of each front side base material 2.
Since the portions a and 8a are fitted together, the next decorative plate 1B does not float up even if the pillar member P is deformed over time not only during construction, but also during construction.

The embodiments of the present invention have been described above. However, the present invention is not limited to the above-mentioned embodiments, and various detailed configurations can be made within the scope of the matters described in the claims. It can be modified and implemented.

For example, in the above-mentioned embodiment, the abutting faces 7b and 8b which are formed at right angles are provided on the front sides of the inclined faces 7a and 8a, respectively, but the abutting faces 7b and 8b are provided at right angles. End face 7b,
8b may be inclined as shown in FIGS.

Further, the end faces 7, 8 on the side edges of the front side substrate 2 are
In addition, it is not always necessary to provide the abutting end faces 7b and 8b as in the above-mentioned embodiment, and as shown in FIG.
Only 8a may be used. In any case, as shown in FIGS. 6 (a) and 6 (b), the respective inclination angles may be set so as to spread inward when the inclined surfaces 7a and 8a face each other. In this way, when the upper protrusion 6 is placed on the lower protrusion 5 and pushed in, it is possible to prevent dust or the like from clogging and making the pushing operation impossible.

The upper protrusion 6 in the above embodiment
Cut the pointed part and cut out as shown in FIG.
May be provided. With such a shape, when the upper protrusion 6 is placed on the lower protrusion 5 and pushed in, it is possible to prevent dust or the like from clogging and prevent the pushing operation from being performed. Burl is prevented and you can easily hold it by hand. This also applies to the case of the decorative plate having the side edges shown in FIGS. 4A to 4C and FIG.

Further, as the front side base material 2 and the back side base material 3 constituting the substrate, corrugated board, gypsum board, plywood, calcium silicate board and the like can be appropriately combined and used. Then, it is preferable to use cardboard, which is a material having a constant thickness, for the front substrate 2. If at least the front side base material 2 is made of corrugated board as described above, or if both the front side base material 2 and the back side base material 3 are made of corrugated board, the decorative board 1 has fire resistance, water resistance, and the like. It is strong, lightweight, and inexpensive. In addition, when using a thin corrugated board, you may use what was pasted together in order to make the front side base material 2 and the back side base material 3 thick. When the back side substrate 3 is made of a material that is not brittle, the nail hole 11 may be formed by simply making a hole without using the reinforcing member 10 as described above.

Further, in the case of a decorative plate having a short side edge as a joining edge, the bending of the column member has little effect, so that the nail hole 11 is not provided in the lower protrusion 5. ,
It is also possible to drive it until the nail head is buried.

[0026]

As described above, according to the decorative plate of the present invention, the upper protrusion on the side edge of the next decorative plate is mounted on the lower protrusion on the side edge of the previously installed decorative plate. When placed and continuously attached to the base, the end surfaces of the front side base material having the same thickness face each other, and the inclined surfaces provided on both end surfaces of the front side base material serve as a stopper.
It is possible to carry out interior decoration without causing a step on the surface of the decorative plate, and since the upper protrusion is prevented from rising at the joint, the step does not occur on the surface of the joint even after construction.

Further, since a nail hole having a size that allows the nail head to be loosely fitted is provided on the front side of the lower protrusion of the decorative plate, when the protrusion of the next decorative plate is fitted into the groove of the preceding decorative plate. The nails can be installed smoothly without getting in the way. Also,
Since one side of the decorative plate is fixed by hitting a nail into the nail hole, it is possible to prevent the decorative plate from being fixed along the pillar member that is tilted or bent, so that the flat state can be maintained regardless of whether the ground condition is good or bad. You can keep it and stick each veneer to the base.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view in a width direction showing a decorative plate as one embodiment of the present invention.

FIG. 2 is a cross-sectional view for explaining a procedure for joining the decorative plates.

FIG. 3 is a cross-sectional view showing a state in which decorative plates are joined.

FIG. 4 is a cross-sectional view showing a modified decorative plate in a joined state.

FIG. 5 is a cross-sectional view showing a modified decorative plate in a joined state.

FIG. 6 is a cross-sectional view showing a modified decorative plate in a joined state.

FIG. 7 is a cross-sectional view showing a decorative plate as a modified example in a joined state thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Decorative plate 2 Front side base material 3 Back side base material 4 Decorative sheet 5 Lower side protrusion 6 Upper side protrusion 7,8 End surface 7a, 8a Inclined surface 11 Nail hole

Claims (3)

[Claims] 1. A decorative plate comprising a substrate having a two-layer structure in which a front side base material and a back side base material are bonded together, and a decorative sheet bonded to the surface of the front side base material, which is one of the bonding edges. The side edge is provided with a lower protrusion in which the back side base material protrudes by a predetermined width from the front side base material, and the front side base material has a width larger than that of the back side base material on the other side edge which is a joining edge. An upper protrusion protruding with a larger width is provided, an end face of the front side base material on one side edge is provided with an inclined surface having an acute angle on the side of the decorative sheet, and an end face of the front side base material on the other side edge is made up. The slanted surface is an obtuse angle on the seat side, and when both slanted surfaces are faced to each other, the slanted surfaces are in contact with each other or spread inwardly. Veneer to be. 2. The decorative board according to claim 1, wherein at least one of the front side substrate and the back side substrate is made of a material having a constant thickness. 3. The decorative plate according to claim 1, wherein a plurality of nail holes each having a size into which a nail head is loosely fitted are formed on the front side of the lower protrusion in the lengthwise direction.