JPH0224825Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a decorative gypsum board with grooves that can be easily constructed without impairing aesthetic appearance.

In conventionally used decorative gypsum boards with grooves that do not have any processing applied to the grooves, the gypsum board itself is fragile during installation, and the thinner grooves are prone to cracks and strength problems. Unable to drive nails due to anxiety, they tried to do the work by driving nails into areas other than the grooves, but the nail heads ended up protruding from the surface of the board, clearly spoiling the aesthetics and making it difficult to use as a decorative board. It did not fully satisfy the value of In some cases, this was done by applying adhesive to the back of the board without using nails, but in this case, although the aesthetic appearance of the surface was maintained, there were concerns about the strength of the adhesive and the areas where it could be glued were limited. There were other drawbacks, and I was not completely satisfied.

Therefore, the purpose of this invention is to solve the above-mentioned problems of the conventional technology, and to widely provide a decorative grooved board that allows nailing into grooves without damaging the aesthetic appearance of the surface and has sufficient adhesion strength. That is.

The present invention will be described in detail below with reference to the drawings.

What is shown in the drawings is one embodiment of the present invention, with FIG. 1 being a perspective view and FIG. 2 being an enlarged sectional view.

Reference numeral 1 denotes a gypsum board with several grooves 2...2 arranged in parallel, and on the surface excluding the grooves 2...2, a gypsum board base paper 7 and decorative paper 9 are pasted and laminated via an adhesive 8, In addition, gypsum board base paper is laminated on the entire back surface.

Further, the inner surfaces of the grooves 2...2 are impregnated with a sealer 3, and a substrate 5, which can be nailed such as a veneer or a plastic resin board, is provided at the bottom with an adhesive 4 interposed therebetween.
...5 is a fixed grooved decorative gypsum board.

Here, the substrate 5 fixed to the bottom of the groove 2...
The surface of 5 must also have an aesthetic appearance similar to the surface of gypsum board 1, and if you use a material with a beautiful surface, there will be no problem, but if you use a material with a rough surface such as veneer, If used, groove 2
...It may be done either before or after it is fixed in the interior of 2, but it is possible to make the surface beautiful by pasting decorative paper 9' on the surface or applying colored paint. , the present invention can be made better.

Further, the sealer 3 impregnated into the groove 2 hardens the gypsum board and gives the effect of easily and firmly adhering the substrate 5, and is made of ethylene vinyl acetate, acrylic, urethane, polyester, Alternatively, resins such as epoxy-based resins are suitable, and the adhesive for fixing the substrate 5 may be acrylic-based, urethane-based, epoxy-based, EVA-based (ethylene-vinyl acetate copolymer), etc., taking into consideration adhesiveness with the sealer agent.
It is preferable to use vinyl acetate, synthetic rubber, urea, melamine, or the like.

What has been described above is the grooved decorative gypsum board of the present invention, but here we will add an example of its manufacturing method.
I will describe it below.

Decorative paper (30 g/m ² ), which is usually used for printed decorative plywood, was pasted on a 12 m/m thick plasterboard using an emulsion-type vinyl acetate adhesive, and the decorative paper, including the paper, was cut to a depth of 5 m. A groove with a width of 7 m/m and a width of 7 m/m was provided, and then a sealer agent, which is a water-soluble resin mainly composed of an acrylic ester copolymer, was poured into the groove where the plaster was exposed, impregnated, and hardened. After that, the board, which is a single plate with a thickness of 2m/m, is
The bottom of the groove is fixed with an adhesive mainly composed of water-soluble ethylene-vinyl acetate copolymer, and a water-soluble coloring paint is flowed into the groove to color both side walls and the surface of the substrate. A decorative gypsum board with grooves can be obtained.

To install this grooved decorative board, as shown in Figures 3 and 4, install this grooved decorative board on a wall surface that can be nailed into, such as a wall framed with studs and girders, and then All you have to do is drive the nail 10 into the substrate inside, but at this time, the plaster itself has hardened because the groove is impregnated with a sealer, and the substrate that can be nailed is stuck to the bottom of the groove. This further increases the strength of the gypsum board and prevents cracks caused by nail hammering, and even if cracks occur, they cannot be seen from the outside due to the board, and the heads of the nails do not penetrate into the board. In order to prevent this, it has sufficient strength and can be constructed without damaging the aesthetic appearance.

As is clear from the above description, the present invention impregnates the grooves with a sealer to prevent nailing into the grooves, which was difficult with conventional grooved gypsum boards, and fixes a nailable substrate to the bottom of the grooves. make it possible by letting
Furthermore, the grooved decorative gypsum board has a number of beneficial effects, such as being able to obtain sufficient joint strength and a beautiful surface condition even after nailing, and being extremely easy to manufacture.

[Brief explanation of the drawing]

What is shown in the drawings is one embodiment of the present invention.
FIG. 1 is a perspective view of the present invention, FIG. 2 is an enlarged sectional view illustrating the configuration of the present invention, and FIG. 3 is a partially cutaway perspective view showing an example of the construction state. 1... Gypsum board, 2... Groove, 3... Sealer agent, 5... Substrate.

Claims (1)

[Scope of utility model registration request] 1. A decorative gypsum board with grooves, which has several grooves impregnated with a sealer on its inner surface, and has a nailable substrate fixed to the bottom of the grooves.