JP2540081Y2 - Wooden soundproof floorboard - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden soundproof floorboard.

[0002]

2. Description of the Related Art Conventionally, a cross
Foamed synthetic resin sheets and nonwoven fabrics
Or a multi-layered product is provided.
Can adapt to fine irregularities on the slab surface of the REIT floor
And the effect of improving the walking feeling.

[0003]

The present invention is, however, of the above-mentioned
In the configuration, the noise generated when dropping objects or walking is generated in the lower floor
The soundproofing performance was not excellent. In addition,
Plywood is hard on uneven (slow irregularities) on the floor of the floor
First of all, there is a problem that there is a step
There was a title . The purpose of this idea is to have soundproofing
In addition, while being able to flexibly adapt to the unevenness of the concrete floor slab surface, it also has sufficient strength as a floor plate ,
Load from the floor, and settling due to long-term use
Another object of the present invention is to provide a wood-based sound-insulating floorboard with a small amount of sinking in the floor .

[0004]

The object of the present invention is to provide a wooden decorative board having a thin decorative veneer adhered to the surface, a rubber or synthetic resin sheet, and a middle board constituting a plywood from the back side in the long side direction and the short side direction. A plywood substrate, a cloth-like material, at least one of which has grooves cut at the depth and male and female parts formed on the side surface
A convex portion is formed on the surface, and the area of the convex portion is one side of the entire surface.
The problem is solved by a wood-based sound-insulating floor panel characterized in that a cushion layer made of foamed rubber having an area of 30 to 70% is laminated and integrated.

Referring to the drawings, the wooden decorative board 2
The one having a total thickness of 2.0 to 3.5 mm on which a decorative veneer 1 having a thickness of about 0.2 to 1.0 mm is adhered to the surface is used.
As the rubber or synthetic resin sheet 3, a sheet having a hardness of 10 to 40 degrees and a thickness of 0.5 to 2.0 mm by a C-type hardness meter specified in JIS K 6301 is used.

The plywood substrate 4 has a thickness of about 5 to 12 mm, and a groove is cut at a depth from the back side to the middle plate constituting the plywood in the long side direction and the short side direction (see FIG. 3). A male member 7 and a female member 8 formed on the side surface are used. Accordingly, flexibility can be imparted while maintaining the strength of the entire floorboard, thereby preventing warpage, improving the familiarity with the concrete floor slab surface, and improving sound insulation performance.

The cloth 5 has a thickness of 50 to 200 g / m ² and a thickness of 1.5 to 3.0 mm. The foamed rubber 6 is made of natural rubber or synthetic rubber and is 80 to 200 g.
/ Cm ³ and a thickness of 1.0 to ² under a load of 20 g / cm ² .
A 5 mm one is used. The cloth material and the foamed rubber are adhered with an adhesive or integrated by heat fusion to form the cushion layer 9.

A projection is formed on at least one surface of the foamed rubber 6 constituting the cushion layer 9, and the area of the projection is 30 to 70% of the area of the entire one surface. 3
If it is 0% or less, there is a problem that the floor surface sinks due to its own weight, mounting of heavy objects on the floor surface, and settling due to long-term use.

An embodiment of the present invention will be described below.

[0010]

(Example 1) Wooden decorative board 2, 2.5 mm thick, with a decorative veneer veneer 1 having a thickness of 0.5 mm adhered to the surface, J
Rubber-based vibration-damping sheet 3 having a hardness of 27 degrees by a C-type hardness meter specified in IS K6301
A 9 mm thick plywood substrate 4, a 3 mm thick nonwoven fabric 5 and a 1.5 mm thick natural rubber foam 6 having a convex area of 50% are heat-sealed as a whole to form an F-type hardness scale of 95 mm. And the cushion layer 9 were laminated and integrated via a vinyl resin-based adhesive to obtain a desired wood-based sound-insulating floorboard.

(Example 2) A decorative wooden veneer 2 having a thickness of 2.5 mm and a decorative veneer veneer 1 having a thickness of 0.5 mm adhered to the surface,
Rubber-based vibration-damping sheet 3 having a hardness of 27 degrees by a C-type hardness meter specified in JIS K 6301, forming male 7 and female 8 on the side and the depth from the back to the middle plate constituting plywood Plywood substrate 4 with a thickness of 9 mm, nonwoven fabric 5 with a thickness of 3 mm, a nonwoven fabric 5 with a thickness of 3 mm, and a convex area of 50% with a thickness of 1.5 mm. The natural rubber foam 6 was heat-sealed and the cushion layer 9 of 95 as a whole was laminated and integrated with a F-type hardness meter via a vinyl resin-based adhesive to obtain the desired wood-based soundproof floorboard.

Then, the wood-based sound-insulating floorboards of the above-mentioned Embodiments 1 and 2 are fixed on a concrete floor slab having a thickness of 150 mm using an epoxy resin adhesive, and a light floor impact sound by a tapping machine is applied from the floor surface. In addition, the noise at each frequency was measured on the lower surface of the concrete floor slab using a sound level meter to obtain a sound insulation class (L) value. As shown in FIG. 4, the results were such that Example 1 passed L-50 and Example 2 passed L-45.

[0013]

[Effect of the invention] According to the invention, the soundproofing performance is not added.
Of course, it can flexibly adapt to the unevenness of concrete floor slabs, and can also maintain sufficient strength as a floor plate, and also has a heavy load from the floor surface and long-term use
Can Rukoto also reduce the sinking amount of the floor against.

[Brief description of the drawings]

FIG. 1 is a plan view of a wooden soundproof floorboard according to an embodiment.

FIG. 2 is a sectional view taken along the line AA of the plan view of the wooden soundproof floorboard of the embodiment.

FIG. 3 is a rear view showing a state in which a groove is cut in the rear surface of the plywood substrate.

FIG. 4 Sound insulation grade test results

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Veneer veneer 2 Wooden veneer 3 Rubber or synthetic resin sheet 4 Plywood board 5 Cloth 6 Foam rubber 7 Male 8 Female 9 Cushion layer

Claims (1)

(57) [Scope of request for utility model registration] 1. A wooden veneer (2) having a thin veneer veneer (1) adhered to the surface, a rubber or synthetic resin sheet (3), and a plywood formed from a back side in a long side direction and a short side direction. A plywood substrate (4) having grooves (7) and female nuts (8) formed on the sides and a cloth (5) at least on one side Protrusion formed
And the area of the convex portion is 30 to 70 of the area of one entire surface.
% Of a foamed rubber (6), which is sequentially laminated and integrated.