JPH0126807Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ceiling material made of mineral fibers such as rock wool or soft fibers.

Conventional ceiling materials generally have a non-penetrating moth-eaten pattern called a travertine pattern engraved on the surface of the board, as shown in Figure 1. Since this ceiling material is made using a circular paper machine, it is not possible to form a thick board, so it is not possible to make a board that is highly sound absorbing and has great heat insulating properties.

This idea was created in view of the above circumstances.
The purpose of this is to arrange a fiberboard with recesses in the lower layer, and to cover the recesses of this fiberboard with the upper layer of fiberboard to laminate and fix the fiberboard, and to make engravings from the surface of the upper layer of fiberboard. The patterned recesses extend to the lower layer of fiberboard, providing a ceiling material with high sound absorption and heat insulation properties.

Hereinafter, embodiments of the present invention will be explained based on FIGS. 2 to 5.

A in FIG. 2 shows a fiberboard 2 made of mineral fibers such as rock wool or soft fibers with appropriate recesses 1 provided in the lower layer, and recesses 1 provided in the lower fiberboard 2. The lower layer fiberboard 2 and the upper layer fiberboard 3 made of the same material are laminated and fixed together with an adhesive or the like, and patterned recesses 4 are carved from the surface of the upper layer fiberboard 3. This is a ceiling material in which the recess 4 extends to the lower layer fiberboard 2 and its depth is kept shallower than the depth of the recess 1 of the lower layer fiberboard 2.

FIGS. 4 and 5 show different embodiments of the present invention, and B is a fiber board 2 in the lower layer, in which the surface is covered with recesses 1 consisting of wormhole-shaped recesses 5, pin-shaped recesses 6, etc. The fiberboards 3 are laminated and fixed, and a recess 4 is carved so that a substantially cross-shaped protrusion remains on the surface of the upper fiberboard 3, and the recess 4 extends to the lower fiberboard 2. In addition, it is a ceiling material that has been cut so that its depth is kept shallower than the depth of the recess 1 of the lower fiberboard 2. In C, similarly, recesses 4 are carved radially, and the recesses 4 reach the lower fiberboard 2, and the depth thereof is kept shallower than the depth of the recess 1 of the lower fiberboard 2. This is a ceiling material that has been machined in this way.
Note that the surface pattern of the upper layer fiberboard 3 may be of any shape such as a circular pattern.

Therefore, a fiberboard with recesses is provided in the lower layer, and the upper layer of fiberboard is laminated and fixed so as to cover the recesses of this fiberboard, and the patterned recesses are formed from the surface of the upper layer of fiberboard. The recess is cut into the lower layer of fiberboard, and its depth is kept shallower than the depth of the recess in the lower layer of fiberboard. Therefore, since the plate thickness can be increased, sound absorption and heat insulation properties are improved, unlike conventional single-layer paper molded products.
In addition, since the upper layer of fiberboard is fixed to the fiberboard with the recessed portion in the lower layer, a hollow portion is formed between the upper layer and the lower layer, so that sound absorption and heat insulation properties are further improved.
In addition, the recesses carved from the surface of the upper fiberboard reach the lower fiberboard, and the depth of the recesses is shallower than the depth of the recesses in the lower fiberboard, so these recesses form a pattern on the surface. It appears on the side and has a good design. Furthermore, the upper layer of fiberboard can be deeply carved, giving it a three-dimensional appearance.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional ceiling material, Fig. 2 is a perspective view of an embodiment of the present invention, Fig. 3 is a vertical sectional view taken along line XX in Fig. 2, and Figs. 4 and 5 are FIG. 3 is a perspective view showing different embodiments of the present invention. A, B, C...Ceiling material, 1...Recess, 2...Lower layer fiberboard, 3...Upper layer fiberboard, 4...Recess.

Claims (1)

[Scope of utility model registration request] A fiberboard with recesses is provided in the lower layer, and an upper layer of fiberboard is laminated and fixed so as to cover the recesses of the fiberboard, and patterned recesses are carved from the surface of the upper fiberboard. A ceiling material characterized in that the recess extends to the lower layer of fiberboard, and its depth is kept shallower than the depth of the recess of the lower layer of fiberboard.