JPH08302976A - Wooden soundproofing floor board - Google Patents

Abstract

PURPOSE: To provide wooden soundproofing material which is easy to manufacture and which does not call for much labor by joining a sheet material which comprises a corrugated expanded synthetic resin and a viscoelastic high gravity substance in multilayer integrally. CONSTITUTION: A cushioning material 2 which comprises a profiled-worked and corrugated expanded synthetic resin, is integrally stuck to the bottom of a wooden base board 1. Then, a sheet material 3 made of a viscoelastic high gravity substance is stuck to the bottom of the cushioning material 2 in multilayer integrally. Favorably, a separable filmlike substance is further stuck to the floor substrate stuck surface of the sheet material 3. It is also desirable that an uneven area is formed on the floor substrate stuck surface of the sheet material 3. More preferably, a plurality of cut grooves are made in the bottom of the wooden base board. This construction makes it possible to manufacture relatively easily a wooden soundproofing floor material which is high in a soundproofing performance and protects the floor surface from being damaged by the loading of a heavy weight.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a construction of a wood-based soundproof floorboard directly constructed on a concrete floor slab surface of an apartment house.

[0002]

2. Description of the Related Art A direct-adhesive floorboard having a structure in which a cushioning material made of a foamed synthetic resin is attached to the back surface of a wooden substrate such as plywood is known, and is directly attached to the concrete floor slab surface of an apartment house with an adhesive. Has been constructed. The surface of the concrete floor slab has a lot of irregularities, but since it is absorbed by the cushioning material, the floor surface can be finished smooth, and the rugged feeling peculiar to concrete can be softened and the walking feeling can be improved.

By the way, recently, with the phenomenon that the number of carpenters that can be installed is reduced, there is a demand for a direct-adhesion floorboard that can be installed relatively easily by an amateur. In order to solve this problem, a sheet material of high specific gravity made of vinyl chloride resin, hard rubber, etc. is attached to the lower surface of the wooden board, and it is placed directly on the concrete floor slab surface without applying adhesive and construction can be performed. A floorboard with a possible structure has been proposed. Since the floorboard having such a structure has a large specific gravity, it is adapted to the base due to its own weight and is not easily displaced or peeled off even after construction.

[0004]

However, since the high specific gravity sheet material made of vinyl chloride resin, hard rubber or the like is attached to the lower surface of the wooden board, the construction method is relatively easy, but the floor board is extremely difficult. There was a problem that it was laborious because it was heavy. Also, the work of applying adhesive on the concrete floor slab surface is no longer necessary, but the work of applying adhesive is still required at the joints consisting of real fruits to prevent the formation of gaps between floor boards. Therefore, it was not possible to achieve a complete reduction in construction work. Further, since the sheet material is relatively hard, it has almost no sound insulation and vibration damping performance, and there is a problem that floor impact sound propagates to the downstairs.
This invention is relatively easy to install and does not require much labor,
Another object is to provide a wooden soundproof floorboard that also has soundproofing performance.

[0005]

According to the present invention, a cushioning material made of a foamed synthetic resin having a profiled cross-section and a sheet material made of viscoelastic high specific gravity are integrally and sequentially formed on the lower surface of a wooden substrate. The gist is that they are laminated. Hereinafter, the present invention will be described with reference to the drawings.

FIG. 1 is an enlarged cross-sectional view of the wooden soundproof floorboard of the present invention.

The wood substrate 1 is made of a common wood plate such as plywood, laminated veneer, wood piece molding plate, fiber board, etc., alone or in combination, and has veneer, decorative paper, synthetic resin sheet or other decorative material on the surface. 1a is attached. The thickness is practically about 7 to 15 mm, and if it is too thin, the entire floorboard will be damaged by heavy objects, and conversely, if it is thick, the space to the ceiling will become narrow.

A kerf 1b may be formed from the lower surface of the wooden substrate 1 so as to conform to the unevenness of the concrete floor slab surface. This kerf 1b imparts flexibility to the hard wooden substrate 1 and makes it possible to absorb the concrete floor slab surface having particularly gentle unevenness and finish the floor surface smoothly.

The cushioning material 2 is made of foamed synthetic resin such as polyethylene or urethane, and is formed in a corrugated cross section by profile processing. The expansion ratio may be 4 to 40 times and the thickness may be in the range of 1 to 3 mm. If it is too thick, the cushioning effect will be too high and the sinking of the floor due to the placement of heavy objects will be significant.

A viscoelastic high specific gravity material such as asphalt rubber is used for the sheet material 3, and a heavy metal substance such as lead may be mixed to enhance the sound insulation. The thickness is 1 to 3 like the cushioning material 2.
The range may be mm. In addition, slippage after construction can be prevented by molding unevenness on the floor base adhering surface.

Further, the peelable film-like material 4 may be stuck on the concrete floor slab sticking surface of the sheet material 3. Accordingly, when the concrete floor slab surface is installed via an adhesive, the adhesive property of the sheet material 3 can prevent the other decorative surface of the floorboard from being contaminated during packing, construction or other work. At the time of construction, the film-like material is peeled off. The first cushioning material 2 and the second cushioning material 3 are laminated and attached using an adhesive.

[0012]

According to the present invention, according to the constitutions of claims 1 and 2, the cushioning material made of the profile-processed foamed synthetic resin having a corrugated cross section and the sheet material made of viscoelastic high specific gravity are integrated. Since it is sequentially laminated and adhered to, it does not require an adhesive for construction and improves soundproofing performance.

According to the second aspect of the present invention, since the peelable film-like material is laminated and adhered to the floor base adhering surface of the sheet material, it is applied to the concrete floor slab surface with an adhesive. In doing so, the adhesive property of the sheet material 3 can prevent the other decorative surface of the floorboard from being contaminated during packing, construction or other work.

Further, according to the third aspect of the invention, since the unevenness is formed on the floor base adhering surface of the sheet material, slippage after construction can be prevented.

According to the fourth aspect of the present invention, the hard wooden substrate can be imparted with flexibility, and the concrete floor slab surface having a particularly uneven surface can be absorbed to finish the floor surface smoothly.

[0016]

[Example] 0.3 mm thick on the surface of plywood with a thickness of 7 mm
, A wooden substrate 1 having a plurality of kerfs 1b formed from the back surface thereof, a profile-processed first cushioning material 2 having a corrugated cross-section made of urethane foam resin with a foaming ratio of 15 times, A sheet material 3 made of asphalt rubber having a thickness of 2 mm having a polyethylene film 4 adhered on the lower surface is sequentially adhered via an adhesive agent, and a real fruit 4 for bonding is processed on the peripheral edge of the wooden substrate 1 to obtain A wooden soundproof floorboard was obtained.

[0017]

According to the present invention, a cushioning material made of a foamed synthetic resin having a wave-shaped cross section and a sheet material made of viscoelastic high specific gravity material, which are profiled on the lower surface of a wooden substrate, are integrally laminated and laminated. Therefore, it is possible to provide a wooden soundproof floorboard which does not require an adhesive for construction, is relatively easy, requires little labor, and has soundproofing performance.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view of a wooden soundproof floorboard of the present invention.

[Explanation of symbols]

 1 Wood substrate 2 Cushioning material 3 Sheet material 4 Film material

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[Procedure amendment]

[Submission date] September 14, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 2

[Correction method] Added

[Correction content]

[Fig. 2] Enlarged sectional view of a conventional wooden soundproof floorboard

Claims (4)

[Claims] 1. A cushioning material made of a foamed synthetic resin having a profiled corrugated cross-section and a sheet material made of viscoelastic high specific gravity are integrally laminated and laminated on the lower surface of a wooden substrate. Characteristic wooden soundproof floorboard. 2. A wood-based soundproof floorboard according to claim 1, wherein a peelable film-like material is laminated and adhered to the floor base adhering surface of the sheet material. 3. The wood-based soundproof floor board according to claim 1 or 2, wherein unevenness is formed on the surface of the sheet material to which the floor base is attached. 4. The plurality of kerfs are formed from the lower surface of the wooden substrate, as claimed in claim 1 or 2.
Alternatively, the wooden soundproof floor board according to claim 3.