JPH065469Y2 - Sound insulation flooring - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a sound insulation floor material that reduces floor impact noise and has a good walking feeling.

(Prior art) In recent years, the number of cases where wooden floors are installed in condominiums and other condominiums is increasing. However, when only wooden floors are installed on a concrete floor, the floor impact noise is large and the comfort of living is significantly reduced. There is a problem of being exposed.

(Problem of the Invention) An object of the present invention is to provide a composite floor material having excellent sound insulation.

(Structure of the Invention) The present invention relates to a floor material having excellent sound insulation, and a cushioning material provided with a ridge-shaped foamed resin portion on a fiber sheet material is interposed between the surface layer and the wood base material, and the surface layer and the wood base material. A sound-insulating flooring material comprising a base material adhered and laminated, and a gist thereof.

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

FIG. 1 is a perspective view of a cushioning material (hereinafter referred to as a cushioning material of the present application) in which a ridge-shaped foamed resin portion is provided on a fiber sheet material. A fibrous sheet material 1 is a paper, woven fabric, or non-woven fabric of inorganic fibers such as 0.1 to 1 mm of natural fibers, synthetic fibers, or glass fibers. Polyvinyl chloride (PVC), polyurethane,
The ridge-shaped foamed resin portion 2 made of a synthetic resin foam having an expansion ratio of 1.5 to 10 times such as SBR has a thickness of 0.3 to 2.0 mm and is 2 to 2
It is formed in a ridge-like shape with a width of 10 mm and at intervals of 0.5 to 10 mm.

The cushioning material 3 of the present application having the above-described configuration is obtained.

2 and 3 are sectional views of the flooring material of the present invention.

In FIG. 2, 4 is a surface layer and 5 is a wood base material.

In the present invention, various kinds of surface layers 4 can be used, and examples thereof include decorative boards, synthetic wood, ceramics, etc., and a thickness of about 1 to 5 mm is desirable.

It is desirable that the wood base material 5 has a thickness of about 3 to 10 mm, and if necessary, a groove (slit) is provided in the vertical and / or horizontal direction, or a hole is drilled to make the vibration energy of sound transmitted through the floor material main body groove or The holes can be greatly attenuated, and as a result, at least the L number is reduced by 2 or more, and the effect of suppressing the floor impact sound can be enhanced.

Adhesives 6 and 6'are applied with the cushioning material 3 consisting of the fiber sheet material 1 of the present application and the ridge-shaped foamed resin portion 2 interposed between the surface layer 4 and the wood base material 6, and the surface layer and the wood base material. Are laminated with the cushioning material of the present application.

A cushion material 7 is formed on the lower surface of the wooden base material 2, 8 is a floor material of the present invention, and 11 is a floor base.

As a preferred example of the present invention, the male seeds 9 and the female seeds 10 are formed between the surface layer 4 and the wood base material 5 in the state of including the cushioning material 3 of the present invention. The floor material 8 is tightly fixed on the floor substrate.

The flooring material of the present invention has a simple structure due to the above-mentioned structure and is characterized in that it is laminated with the cushioning material 3 of the present invention interposed between the surface layer and the wood base material.

That is, in the present invention, the cushioning material of the present invention functions as a layer for cushioning the floor impact energy, and the thickness of the cushioning material of the present invention is 0.
3 to 3 mm is desirable.

As a result, the sound insulation effect is significantly improved.

The above-mentioned adhesive may be any adhesive as long as it can bond various natural and synthetic resins, surface layers such as rubber, cushioning materials, and wood base materials to each other, but adhesives having viscoelasticity are particularly preferable.

In FIG. 2, a sheet material such as a non-woven fabric or a mesh material is adhered to the back surface of the wooden base material 5 if necessary, and the cushion material 7 is laminated on the lower side thereof. As the cushion material, for example, corrugated rubber, polyvinyl chloride (P
VC), a foam such as soft urethane is suitable, and 11 is a floor base, and there is a gap between the floor base and the cushion material or between the cushion material and the wood base material. In addition to this, as the cushion material, thick glass wool, soft resin foam, a sheet obtained by entangling and solidifying a fibrous extruded synthetic resin melt, and the like are suitable, and a thickness of about 3 to 7 mm is desirable. Excellent cushioning and soundproofing can be obtained with the cushion material.

FIG. 3 is a sectional view of another embodiment of the present invention. In FIG. 2, two layers of a wood base material and the cushioning material of the present invention are laminated,
An adhesive is applied and laminated between the cushioning material, the surface material and the wooden base material.

In FIG. 3, the same cushioning material 13 as described above is interposed between the surface layer 4 and the upper wooden base material 12, and the adhesive 14, 14 '
Thus, the surface material, the cushioning material of the present application, and the wooden base material are adhesively laminated, and similarly, the adhesives 17 and 17 'are applied between the upper wooden base material 12 and the lower wooden base material 15 through the cushioning material 16 of the present invention.
The cushioning material of the present application and the lower wooden base material are superposed and adhered under the upper wooden base material, and the cushion material 18 is laminated under the lower wooden base material.

Thus, the flooring material 19 of the present invention is obtained.

(Effects of the Invention) In the present invention, a comfortable walking feeling can be obtained, and excellent sound insulation can be obtained by laminating the cushioning material of the present application and a wood base material in a pair on the surface material, and the cushioning material of the present application. When two layers of the wood base material are repeatedly laminated, the L number is improved by 2 or more. In this way, the floor impact sound is dramatically reduced along with the feeling of walking, which is very convenient for use in an apartment house, and the inventive step is extremely large as compared with known floor materials.

In addition, as will be apparent from the examples described below, in the present invention, even if the cushioning material of the present invention is adhesively laminated as described above, even the thin cushioning material has an extremely excellent sound insulating property. Even though the total thickness of the material is about the same as conventional ones, it exhibits unexpectedly superior sound insulation.

Since the foam layer is provided in the form of ridges on the fiber sheet as the cushioning material, it has a large void portion, and this void portion can greatly attenuate the vibration energy of the sound transmitted through the floor material main body. Compared to the case where the foam layer is coated on a flat surface,
The L number can be reduced by at least 2 or more, and the sound insulation effect is greatly improved.

When a surface material is adhesively laminated on the cushioning material of the present application, air escapes from the voids between the ridge-shaped foams, so that air on the surface of the adherend is trapped by trapping the air on the surface of the adherend, as in the case of a non-breathable sheet with a smooth surface. It is possible to reliably prevent defective adhesion without causing

It is inexpensive and easy to manufacture.

Example A wood decorative board having a thickness of 4 mm and a wood base material having a thickness of 4 mm have a thickness of 0.
S with a width of 3.0 mm and a height of 0.8 mm on a 3 mm non-woven sheet
The BR foam was pressure-laminated with the ethylene monovinyl acetate adhesive through a cushioning material provided at 1.0 mm intervals. Further, a corrugated foam rubber cushion material having a height of 4 mm from the back surface of the wooden base material to the floor base material was provided on the back surface of the wooden base material to prepare the floor material of the present invention, and this was applied to the floor base material.

The sound insulation performance of the floor materials obtained in the examples was measured according to JIS-A-1418 (a method for measuring the floor impact sound level of a lightweight floor impact sound in a building sound insulation). The floor material of the example had an L number of 51, had a low impact noise, was comfortable to the inhabitants of the downstairs, and had a good walking feeling.

In addition, when the flooring material which removed the cushioning material from an Example as a comparative example was constructed, L number was 55 and the cushioning sound was considerably high.

[Brief description of drawings]

1 is a perspective view of the cushioning material of the present application, FIG. 2 is a sectional view of the sound insulation flooring material of the present application, and FIG. 3 is a sectional view of another embodiment of the flooring material of the present application,
1 is a fiber sheet material, 2 is a foamed resin portion, 3 is the cushioning material of the present application,
4 is a surface material and 5 is a wood base material.

Claims (2)

[Scope of utility model registration request] 1. A sound insulation characterized in that the surface layer and the wood base material are adhesively laminated by interposing a cushioning material having a ridged foamed resin portion on a fiber sheet material between the surface layer and the wood base material. Floor material. 2. The sound insulation flooring material according to claim 1, wherein a corrugated foam is formed on the back surface of the wooden base material.