JPH0624200Y2 - Counter material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of a counter material arranged indoors.

(Prior art) Resin-impregnated wood material obtained by impregnating and hardening synthetic resin into wood material, and artificial marble formed by solidifying inorganic powder with synthetic resin into a plate shape are not only cosmetic but also water resistant. Since it has good properties, high surface hardness, and good dimensional stability, it can be suitably used as a counter material.

However, it is not only extremely expensive to manufacture the entire counter material from the resin-injected wood or artificial marble as described above, but it is also difficult to handle because it is heavy, and because of its high hardness, it is easy to cut. There is a problem that the workability is poor.

For this reason, conventionally, as shown in FIG. 3, the resin-injection-treated wood or artificial marble is formed into a thin plate to form a surface decorative material (a).
Then, a wood base material (b) such as plywood or lumber is attached to the back surface to form the main body of the counter material, or as shown in FIG. 4, it is attached to the lower surface of the surface decorative material (a). A wood board made of a large number of small wood pieces hardened with a thermosetting resin as a wood base material
(c) is used to form the main body of the counter material, and the end face decorative edge material (d) made of the same material as the surface decorative material (a) is attached to one end surface of the main body of the counter material to form the counter material. Is formed.

(Problems to be solved by the invention) However, according to the former counter material, a wood board such as plywood is used as the base material (b), and since it has anisotropy, the surface decorative material ( In the surface layer of the base material (b) that is in contact with a), expansion and contraction in the direction orthogonal to the fiber direction is large, and when water is absorbed, expansion occurs in the plane direction, and the expansion pushes the end face decorative edge material (d) outward. The action force to try is generated. At that time, since the surface decorative material (a) is thin, the above acting force cannot be restricted only by the adhesive force between the end surface of the surface decorative material (a) and the decorative edge material (d), and the adhesion between the two As shown in the figure, the surface is peeled off, and a gap is generated between the end surface of the surface decorative material (a) and the back surface of the decorative edge material (d), impairing the cosmetic property.

On the other hand, according to the latter counter material, since a wood board (c) made by hardening a large number of wood fibers or wood pieces with a thermosetting resin is used as a wood base material, the anisotropy in the plane direction is improved. On the other hand, since the wood fiber mat is formed into a plate-like body by thermocompression molding, its binding force is weak, and since the expansion and contraction in the thickness direction is large, it expands due to moisture absorption and the like as the surface decorative material (a). A step will occur between the decorative edge materials (d).

That is, the adhesive strength of the wooden board (c) to the decorative edge material (d) is stronger than that of the surface decorative material (a), and when the wooden material (c) expands in the thickness direction, adhesion The adhesive surface between the surface decorative material (a) with weak force and the decorative edge material (d) is peeled off and the surface decorative material (a) is lifted, and the upper surface of the decorative edge material (d) and the surface decorative material (a) are In addition, a step is formed as shown by a chain double-dashed line in FIG.

When such a step is formed, the surface decorative material (a) is excellent in smoothness, so that there is a problem that the cosmetic property is further conspicuously deteriorated.

An object of the present invention is to provide a counter material that can solve such problems.

(Means for Solving the Problems) In order to achieve the above object, the counter material of the present invention is
Resin injection treatment such as wood material and artificial marble on the upper surface of a base material made of wood board such as plywood, lumber products, LVL, etc. A structure in which surface decorative thin plates are laminated and integrated to form a counter material main body, and an end surface decorative edge material made of the same material as the surface decorative thin plate is attached and integrated to at least one end surface of the counter material main body. Is.

A second aspect of the present invention is the counter member of the first aspect, which has a structure in which a moisture-proof layer such as resin-impregnated paper is attached to the lower surface of the base material.

(Function) An intermediate wooden board made of a wood fiber and a small piece of wood hardened with a thermosetting resin is interposed between a base material made of a surface decorative thin material and a wood board such as plywood, lumber products, and LVL. This intermediate wood board has improved plane anisotropy as compared with the wood base material, and the cut end surface exerts a strong adhesive force to the decorative edge material, while the lower wood base material cuts the end surface. The irregularities such as fluffing at the time are large and the adhesive force with the decorative edge material is weaker than the adhesive force between the intermediate wood material and the decorative edge material.

Therefore, when the wood base material is stretched in the planar direction, it is prevented from being transmitted to the surface decorative thin plate due to the presence of the intermediate wood board, and the decorative edge material and the intermediate wood board exhibit strong adhesiveness, The wood base material does not extend in the opposite direction to the decorative edge material to form a gap between the surface decorative board and the decorative edge material,
The deformation due to the appearance does not appear outside.

Further, the intermediate wood board has a larger expansion in the thickness direction than the wood base material, but the wood base material having a variation in adhesive strength is pushed downward by moving from the decorative edge material, It has no effect on the side and can always maintain good surface cosmetic properties.

If a moisture-proof layer such as resin-impregnated paper is attached to the lower surface of the wooden base material, moisture absorption from the back surface is reduced, the front and back surfaces are balanced, and dimensional stability is improved.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings.
In the figure, (1) is a plywood or lumber product, LVL, etc., and a wood plate (1 ') having a large dimensional change in the direction orthogonal to the fiber direction due to moisture absorption and desorption etc. is disposed in the uppermost layer It is a base material.

Between the wood base material (1) and the surface decorative thin plate (2), the wood base material
The same thickness as (1) or an intermediate wood board (3) thinner than the wood base material (1) and thicker than the surface decorative thin board (2) is interposed and bonded and integrated in a laminated state. By doing so, the counter material main body (A) having a constant thickness is formed.

(4) is an edge decorative edge material having an appropriate cross-sectional shape whose height dimension is the same as that of the counter material main body (A), and is made of the same material as the surface decorative sheet (2), and the counter material (A) The back surface is adhered and integrated with at least one side end surface by an appropriate adhesive to form a counter member.

As the wood base material (1) in the counter material main body (A), a material formed by forming plywood to a predetermined thickness is used, but it is laminated and integrated on the upper surface with an appropriate adhesive. As the intermediate wood board (3), a medium specific gravity fiber board formed by solidifying wood fibers obtained by defibrating wood chips with a thermosetting synthetic resin such as phenol resin or melamine resin to form a plate having a predetermined thickness is used. used.

Incidentally, the intermediate wood board (3) made of a medium specific gravity fiber board hardened with such a thermosetting resin has a dimensional stability in the plane direction and a strong adhesion between the one end face and the decorative edge material (4). However, since the wood fiber mat is formed into a plate-like body by thermocompression molding, the dimensional change in the thickness direction is inferior to that of plywood or the like.

In addition, the surface decorative thin plate (2) and the edge decorative edge material (4) are so-called WPC made by injecting synthetic resin into wood and hardening treatment, and inorganic powder such as stone powder or aluminum hydroxide is acrylic, unsaturated. It is made of artificial marble that is molded by molding with synthetic resin such as polyester.

Mainly the above counter material for the back of the end face decorative edge material (4)
The end face adhesive strength of each plate member (1), (2), and (3) of (A) is the strongest in the intermediate wood board (3) due to the shape and performance of those end faces when the same adhesive is used. It is a wood base material (1) that is adhered to, and is formed next thickly, and the surface decorative thin plate (2) is thin, and thus has the weakest adhesive strength.

Since it is configured in this way, since the intermediate wood board (3) obtained by hardening wood fibers and wood chips with a thermosetting resin is interposed between the wood base material (1) and the surface decorative thin board (2), Intermediate wood board (3)
While it exerts a strong adhesive force between the decorative edge material (4) and the decorative edge material (4), the adhesive force of the wood base material (1) on the lower side thereof is weak.

Therefore, even when the wooden base material (1) extends in the plane direction, the wooden base material (1) extends in the opposite direction to the decorative edge material (4) as shown by the two-dot chain line in FIG. The peeling force from the decorative edge material (4) due to the elongation of the decorative thin plate (2) is prevented by the intermediate wooden board (3).

Further, even if the intermediate wood board (3) expands in the thickness direction, the wood base material (1) having weak adhesive force moves from the decorative edge material (4) and is shown by a two-dot chain line in FIG. It is extruded downwards and has no effect on the surface side.

In the above example, the height of the decorative edge material (4) was formed to be equal to the thickness of the counter material main body (A), but the height is increased to make the upper end surface the upper surface of the counter material main body (A). The decorative edge material (4) may be bonded so as to be flush and continuous with the lower edge of the decorative material (4) so as to project downward from the lower surface of the counter material main body (A).

Next, FIG. 2 shows another embodiment of the present invention, in which a moisture barrier layer (5) is attached to the lower surface of the wood base material (1) of the counter material main body (A) in the above embodiment. This is the moisture barrier
By (5), moisture absorption to the wood base material (1) is reduced, the front and back surfaces are balanced, and the dimensional stability is further improved as compared with the counter materials in the above-mentioned examples.

As such a moisture-proof layer (5), a FRP thin plate, resin-impregnated paper, a resin sheet, or a material similar to the above-mentioned surface decorative thin plate (2) is used.

(Effects of the Invention) As described above, according to the counter material of the present invention, wood fibers or wood chips are hardened with a thermosetting resin on the upper surface of a base material made of wood board such as plywood, lumber products, and LVL. A resin-mixed surface decorative thin plate made of resin-injected wood or artificial marble is laminated and integrated through an intermediate wooden plate to form a counter material main body, and at least one side face of the counter material main body is the same as the surface decorative thin plate. Since it has a structure in which the end face decorative material made of a material is attached and integrated, the thickness of the expensive surface decorative material made of WPC or the like is reduced by using a wood base material, and the weight and workability are reduced. Of course, you can improve
Since an intermediate wood board formed by hardening wood fibers or wood chips with a thermosetting resin is interposed between the wood base material and the surface decorative thin material, this intermediate wood board is more decorative than the wood base material. It can be firmly adhered to the material, and thus even if the wood base material is stretched in the planar direction, it is possible to prevent the stretch from being transmitted to the surface decorative thin plate by the intermediate wood plate, and thus, There is no risk of creating a gap between the end surface of the decorative sheet and the decorative edge material, while only the wood base material extends in the opposite direction to the decorative edge material, but the wood base material is hidden from the outside. Since it is arranged in a state, the deformation due to its appearance due to its extension cannot be seen from the outside and the appearance can be maintained.

Further, even if the intermediate wooden board expands in the thickness direction, the above-mentioned wooden base material having adhesive strength varies from the decorative edge material and is pushed downward, and the surface decorative thin plate is integrally bonded to the decorative edge material. It is possible to maintain the above state and eliminate the occurrence of the step as described above.

Furthermore, since the surface of the intermediate wooden board hardened with a thermosetting resin is harder than the untreated wooden board, the pressure resistance is good, and even if the surface decorative thin plate is formed thin, it may cause cracks or cracks. Absent.

By attaching a moisture-proof layer such as resin-impregnated paper to the lower surface of the wooden base material, the moisture absorption of the wooden base material can be reduced, and the dimensional stability is further improved.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of the present invention, and FIG. 2 is a vertical sectional front view showing another embodiment of the present invention, FIGS.
The figure is a vertical sectional front view showing a conventional example. (1) …… Wood base material, (2) …… Surface decorative thin plate, (3) …… Intermediate wood plate, (4) …… End face decorative edge material, (5) …… Moisture-proof layer, (A)…
… Mainly counter materials.

Claims (2)

[Scope of utility model registration request] 1. A resin-introduced wood material or artificial material through an intermediate wood board formed by hardening wood fibers or wood chips with a thermosetting resin on the upper surface of a base material made of wood board such as plywood, lumber, LVL and the like. A counter-material main body is formed by laminating and integrating resin-mixed surface decorative thin plates such as marble, and an end surface decorative edge material made of the same material as the surface decorative thin plate is attached and integrated to at least one side end surface of the counter material main body. Counter material. 2. A counter member according to claim 1, wherein a moisture-proof layer such as resin-impregnated paper is attached to the lower surface of the base material.