JPH0573859B2 - - Google Patents

Description

[Detailed description of the invention] 〔Technical field〕 The present invention relates to a flooring material having a soundproofing effect.

[Background technology]

2. Description of the Related Art Floors of buildings made of steel frames, reinforcing bars, etc. are often made by laying floor finishing materials such as wooden tiles, synthetic resin tiles, rubber tiles, etc. on a floor base made of concrete or the like. Using wooden tiles as a floor finishing material has the advantage of making rooms etc. calmer and adding a sense of luxury to buildings, but wooden tiles have poor sound absorbing properties, so they are less likely to be affected by the sound of footsteps. There are some disadvantages, such as the fact that it resonates. On the other hand, resin tiles and rubber tiles have higher sound absorption properties than wooden tiles, so using them as floor finishing materials has the advantage of not making the sound of footsteps as much, but it also has the effect of reducing the impact on buildings. A disadvantage is that it is difficult to give a sense of luxury.

Therefore, a soundproof flooring material as shown in Figure 1 was developed. In this soundproof flooring material 1, wooden pieces 1b are glued to the surface of a sheet 1a made of a sound absorbing material so that they are laid out in a small checkerboard pattern or the like without any gaps. Thickness for wood piece 1b is 3.0~
A sheet of approximately 8.0 mm is used, and sheet 1a has a thickness of
A material with a diameter of about 2.0 mm is used. When such soundproof flooring material 1 is laid and fixed on the floor base as shown in the figure, the upper surface of the wooden piece 1b constitutes the floor surface, making the room etc. calm and giving the building a luxurious look. You can also give Moreover, since the sheet 1a made of a sound absorbing material is provided on the back side of the wooden piece 1b, a soundproofing effect can also be obtained.

However, such soundproofing flooring materials have low soundproofing effects, the wooden pieces easily peel off from the sheet, and the wooden pieces have large dimensional changes due to humidity, etc., so the expansion and contraction of the wooden pieces causes the phenomenon of the wooden pieces pushing up. There were also problems such as gaps forming in the floor surface and spoiling the aesthetic appearance of the floor surface.

[Purpose of the invention]

This invention was made in view of these circumstances, and consists of a sheet and a wooden piece.It has a great soundproofing effect, the wooden piece is difficult to peel off from the sheet, and even when the wooden piece expands and contracts, the wooden piece remains intact. The purpose is to provide a soundproof flooring material that does not cause the phenomenon of pieces pushing up or impair the aesthetic appearance of the floor surface.

[Disclosure of the invention]

In order to achieve the above object, the present invention provides a flexible sheet made of a sound absorbing material with a predetermined number of wooden pieces spaced apart from each other and with the front side protruding above the sheet surface. The gist of this is a soundproof flooring material that is embedded and bonded together. Hereinafter, the present invention will be explained in detail based on the drawings.

FIGS. 2 and 3 show a soundproof flooring material according to the present invention. As shown in the figure, this soundproof flooring material 2 consists of a sheet 2a made of a sound-absorbing material, and a predetermined number of wooden pieces spaced apart from each other and with the front side protruding above the surface of the sheet 2a. 2b... are embedded and joined together. As the sound absorbing material, for example, soft rubber such as silicone rubber, soft plastics, or other flexible sheets are used. When using soft rubber or soft plastics, the hardness (shore hardness) is 10~
It is preferable to use one with an angle of 70°. The wooden piece may be a single piece, but plywood, a substrate made of plywood, and an artificial decorative veneer or a natural decorative veneer bonded to each other are used. After impregnating the wood piece with monomers,
It is preferable to use reinforced wood (WPC), which is reinforced with resin by chemically polymerizing it using radiation or a catalyst.
This is because properties such as strength, dimensional stability, weather resistance, and corrosion resistance of the wood piece are improved. The thickness of the sheet is preferably 3.0 to 20.0 mm, considering the sound absorption effect, the feeling of walking, and the ability to absorb some irregularities in the subfloor, and the thickness of the wooden piece is preferably 1 to 20 mm. preferable.
Furthermore, it is preferable that the intervals between the wooden pieces be 0.5 mm or more. The size of the sheet and the wooden pieces, and the number of wooden pieces to be joined to the sheet are determined as appropriate depending on the installation location, etc. For example, the sheet is 180
It is a square of cm x 180 cm, and the size of the wooden piece is
Make a 10cm x 10cm square, leaving 1cm between the wooden pieces.

In the soundproof flooring material according to the present invention, intervals are provided between the wooden pieces, and the bases of the wooden pieces are embedded in the sheet, so that one wooden piece 2b is provided as shown in FIG. Sound A, such as the sound of walking, passing through the wooden piece 2b is blocked by the sound absorbing material surrounding the wooden piece 2b, making it difficult for it to be transmitted to the adjacent wooden piece 2b. Therefore, compared to a soundproof flooring material in which wooden pieces are spread tightly over the sheet surface, sound is less likely to be transmitted in the lateral direction, and the sound absorption effect is higher. In addition, even if the dimensions of the wooden pieces change, the sheet portion between the wooden pieces expands and contracts to absorb the change in the dimensions of the wooden pieces, so the wooden pieces do not push up or a gap occurs between the wooden pieces and the sheet. do not. Moreover, since there is a gap between the wooden pieces to serve as a joint from the beginning, even if the wooden pieces change in size, this gap absorbs the dimensional change and the aesthetic appearance of the floor is not impaired. Since the wooden piece is embedded in the sheet, the contact area between the wooden piece and the sheet is larger than when the wooden piece is simply adhered to the surface of the sheet. Therefore, it is difficult to peel off from the sheet. By appropriately determining the spacing and protruding height of the wooden pieces, it is possible to eliminate problems such as those caused by people tripping on the edges of the wooden pieces, even if the heights of the wooden pieces are slightly different. It is. On the other hand, if there are no gaps between the wooden pieces, as with conventional soundproof flooring, and the heights of the wooden pieces are different, problems such as those caused by people tripping on the protruding parts of the wooden pieces may occur. There are many.
The soundproof flooring material according to the present invention does not require nailing and can be fixed to the floor base with adhesive, so it is easy to install. However, it may be fixed to the floor base by nailing.

The soundproof flooring material according to the present invention is produced by, for example, pouring a liquid sound-absorbing material into a mold, then embedding a predetermined number of wooden pieces at intervals and with the front side protruding, and then hardening the sound-absorbing material. It can be made by A large number of wooden pieces may be arranged in a predetermined manner by fitting the front sides of the wooden pieces into a mold, and the sound absorbing material may be poured into the back side of the wooden pieces and allowed to harden. Instead of pouring the sound-absorbing material into a mold, it may be poured directly onto the subfloor, and the wood pieces may be placed over it.

As shown in FIG. 4, the present invention provides a wooden piece 3 in which a substrate 3a made of plywood or the like and a decorative veneer 3b having a butthole pattern reinforced with resin are joined and integrated. When used in such a soundproof flooring material 4, a wood grain pattern can be placed on the floor surface. In the figure, 5 is a sheet.

When wood is sliced into rings to create wood pieces with a butt end pattern, the wood fibers are cut into short pieces, making them extremely susceptible to cracking, chipping, warping, etc. when dried. If the thickness is about 1.0 to 10.0 mm, cracks will easily occur because it is thin. Therefore, it is difficult to use such wood pieces for the soundproof flooring material according to the present invention.
However, as mentioned above, when decorative veneer with a wood edge pattern is reinforced with resin, it may crack, chip, or warp.
Since it is less likely to cause scratches and has good water resistance, it can also be used as a soundproof flooring material.

For example, the wooden piece can be made as follows. First, a veneer is made by slicing broad-leaved trees such as oak, oak, bamboo, and lauan, coniferous trees such as pine, ash, fir, and cypress, and other logs and square timbers. Thickness is 1.0~10.0mm
It is preferable that Next, the veneer is impregnated with a thermosetting resin such as polyester resin, melamine resin, or phenol resin by vacuum pressure impregnation. The amount of impregnation is preferably 100 to 120%. After that, the veneer is adhered to a substrate such as plywood, and the impregnated resin is cured. After adhering the veneer to the substrate, it may be integrally molded with the sound absorbing material and the impregnated resin may be cured. It is preferable to use plywood as the substrate. This is because plywood usually has rough conduits, which improves the bonding (adhesion) of the wooden piece to the sound absorbing material.

In the embodiment described above, the square wooden pieces are arranged parallel to the sheet, but this need not necessarily be the case. As shown in FIG. 5, rectangular wooden pieces 6 may be placed on the sheet 5, or fine chip-shaped wooden pieces may be embedded in the sheet with a portion exposed and aligned. It may be as if they are integrated.

The soundproof flooring material according to the present invention can also be used as wall material, ceiling material, etc.

〔Effect of the invention〕

The soundproof flooring material according to the present invention has a predetermined number of wooden pieces embedded in a flexible sheet made of a sound-absorbing material, spaced apart from each other, and with the front side protruding above the sheet surface. Because it is made of 300% aluminum, it has a great soundproofing effect and the wooden pieces are difficult to peel off from the sheet, and even if the wooden pieces expand and contract, the wooden pieces will not push up or the aesthetic appearance of the floor will be spoiled. There is no.

In particular, in this invention, since the flexible sheet can flexibly deform along the unevenness of the subfloor surface, gaps are unlikely to form between the sheet and the subfloor surface. Even when multiple soundproof flooring materials are installed side by side, they can be laid tightly without any gaps between the flooring materials, and there is no need to worry about creating a step at the joint.

Furthermore, since a portion of the wooden piece protrudes above the surface of the sheet, the entire flooring material can be easily bent and deformed, making it easier to install it on the subfloor surface as described above.

That is, in the protruding portions of the wooden pieces, adjacent wooden pieces can move freely with respect to each other, so that the flooring material can be easily bent. The fact that the wooden piece protrudes from the sheet means that the portion of the wooden piece embedded in the sheet is small, and the hard wooden piece no longer interferes with the inherent deformability of the flexible sheet. If the thickness of the entire flooring material is the same, the thickness of the sheet becomes thinner by the difference in level between the surface of the wooden piece and the sheet, and the flexible sheet becomes more easily deformed.

As a result, in the present invention, it has become possible to significantly improve the flexibility and bending deformability of the entire flooring material.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional soundproof flooring material laid down, Fig. 2 is a perspective view of one embodiment of the soundproof flooring material according to the present invention, and Fig. 3 is a longitudinal section of a part of the same soundproof flooring material. 4 is a partially cutaway perspective view of another embodiment of the soundproof flooring material according to the present invention, and FIG. 5 is a plan view of another embodiment of the soundproof flooring material according to the present invention. be. 2, 4... Soundproof flooring material, 2a, 5... Sheet, 2
b, 3, 6...wooden piece.

Claims (1)

[Claims] 1. A predetermined number of wooden pieces are embedded and joined together in a flexible sheet made of a sound-absorbing material, spaced apart from each other, and with the front side portions protruding above the sheet surface. Soundproof flooring material. 2. The soundproof flooring material according to claim 1, wherein the wooden piece is a decorative veneer integrally bonded to the surface of a substrate made of plywood. 3. The soundproof flooring material according to claim 2, wherein the decorative veneer has a wood grain pattern. 4. The soundproof flooring material according to any one of claims 1 to 3, wherein the wood piece is made of reinforced wood. 5. The soundproof flooring material according to any one of claims 1 to 4, wherein the wood piece has a thickness of 1 to 20 mm. 6. The soundproof flooring material according to any one of claims 1 to 5, wherein the interval between the wooden pieces is 0.5 mm or more. 7. The soundproof flooring material according to any one of claims 1 to 6, wherein the sound absorbing material is either soft rubber or soft plastic. 8. The soundproof flooring material according to any one of claims 1 to 7, wherein the sheet has a thickness of 3.0 to 20.0 mm.