JPH0261885B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an artificial marble top plate used for system kitchens, bathroom vanities, etc., and a method for manufacturing the same.

[Background technology]

When it comes to top plates for system kitchens and bathroom vanities, it is necessary to change the mounting position of the wash basin on the top plate depending on the user's preference and ease of use. To change the mounting position of the washbasin, you must change the position of the opening in the top plate, but it is inconvenient to prepare various molds to form top plates with different opening positions. It is economical. Therefore, conventionally, the top plate was manufactured as shown in FIGS. 9 and 10. First, as shown in Fig. 9, an opening 2 for the washing bowl 7 is cut out in the top plate main body 1, and then, since the inner surface of the opening 2 becomes a cut surface and looks unsightly, the opening 2 is rounded. At the same time, the cut surface was coated with a surface resin 8 called gel coat resin, and after it had hardened, the wash bowl (or sink) 7 was attached to the opening 2. However, in this method, the surface resin 8
It was necessary to apply and cure the coating, which was extremely time-consuming and costly, and the finished product was not very beautiful.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned points, and provides an artificial marble top plate that allows easy manufacture of top plates with openings in different positions, and has a good finish on the inner surface of the openings, and a method for manufacturing the same. The purpose is to provide the following.

[Disclosure of the invention]

That is, in the artificial marble top plate of the present invention, an opening 2 is provided in a top plate main body 1 made of synthetic resin, and a ring-shaped opening member 3 made of a synthetic resin material is fixed to the inner surface of the opening 2 of the main body 1. This method eliminates the need to coat the inner surface of the opening 2 with the surface resin 8, and the method for manufacturing the artificial marble top plate of the present invention is characterized by the fact that A ring-shaped opening member 3 made of a resin material is placed, and then a top plate resin composition 5 is placed inside the lower mold 4 on the outside of the opening member 3.
is poured and hardened, and the top plate main body 1 is removed from the mold while it is adhered to the opening member 3, and the above purpose is achieved by eliminating the need to cut out the opening 2 in the top plate main body 1. It is.

The present invention will be described in detail below based on examples. As shown in FIG. 2, the opening member 3 is formed of a circular or elliptical ring-shaped molded product, and the inner surface thereof is preliminarily curved so as to be inclined inwardly and upwardly. This opening member 3 is placed at an arbitrary position on the lower mold 4 of the mold 9, as shown in FIG. 4a. Next, as shown in FIG. 4b, the opening member 3
The top plate resin composition 5 is poured into the lower mold 4 on the outside of the top plate. Here, the resin composition 5 for the top plate includes unsaturated polyester resin, calcium carbonate, silica sand,
A material kneaded with a filler such as aluminum hydroxide can be used. Next, as shown in FIG. 4c, the upper mold 10 is placed on the lower mold 4 to harden the resin composition 5, and then the top plate is placed with the opening member 3 adhered to the inner surface of the opening 2 of the top plate main body 1. The main body 1 is demolded.

Thus, since the opening member 3 is attached to the inner surface of the opening 2 of the top plate main body 1, there is no need to subsequently paint the inner surface of the opening 2 with resin 8 as in the conventional case. Moreover, the opening member 3 is a molded product and has a neatly finished inner surface, which improves the appearance of the top plate. Note that the vertical thickness of the opening member 3 is set to be the same as the thickness of the top plate body 1 to be obtained. Also, the seventh
As shown in FIGS. a and b, if an uneven portion 11 is formed in advance on the outer peripheral surface of the opening member 3, the adhesiveness with the top plate main body 1 can be further improved. Furthermore, by appropriately coloring the opening member 3, it is possible to add a color accent to the top plate. Wash bowl 7 is placed on the top plate formed in this way.
When installing, insert a nut into the lower surface of the opening member 3 as shown in Fig. 8, or
Alternatively, if the screws 13 are cut, the washbowl 7 can be easily fixed with the bolts 12.

〔Effect of the invention〕

As described above, the present invention provides an opening in the synthetic resin top plate main body as a specific invention, and a ring-shaped opening member made of synthetic resin is fixed to the inner surface of the opening of the main body. The inner surface can be decorated with an opening member, and there is no need to coat the inner surface of the main body with a surface resin as in the past, which improves workability and allows the inner surface of the opening to be beautifully finished. In addition, as a combined invention, a ring-shaped opening member made of a synthetic resin material is placed in the lower mold, and then a resin composition for the top plate main body is poured into the lower mold outside the opening member and cured. Since the top plate main body was removed from the mold while still attached to the opening member, the position of the opening can be easily changed by simply changing the mounting position of the opening member. There is no need to make individual pieces, it is economical, and it is possible to reduce the cost of the artificial marble top plate.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of one embodiment of the present invention, FIG. 2 is a perspective view of the opening member as described above, FIG. 3 is a partially cutaway enlarged perspective view of the opening member as described above, and FIGS. 5 is a perspective view of the top plate obtained by the same method, FIG. 6 is a sectional view of the same as above, and FIGS. 7 a and b are sectional views of main parts of other embodiments of the above, FIG. 8 is an enlarged sectional view of a main part of still another embodiment of the same as above, FIG. 9 is a perspective view of a top plate main body of a conventional example, and FIGS. 10 a to 10 d are sectional views showing a manufacturing method of the same. 1 is the top plate body, 2 is the opening, 3 is the opening member, 4
5 is a lower mold, and 5 is a resin composition for a top plate.

Claims (1)

[Scope of Claims] 1. An artificial marble characterized in that an opening is provided in a top plate body made of synthetic resin, and a ring-shaped opening member made of synthetic resin is fixed to the inner surface of the opening of the main body. Made of top plate. 2 Place a ring-shaped opening member made of a synthetic resin material in the lower mold of the mold, then pour the top plate resin composition into the lower mold outside the opening member and harden it, then close the opening. A method for manufacturing an artificial marble top plate, which is characterized by removing the top plate body from the mold while it is adhered to a member.