JP2602459B2 - Sound insulating wooden flooring - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound-insulating wooden flooring material having extremely excellent sound-insulating performance.

[0002]

2. Description of the Related Art Recently, wood-based flooring materials have been increasingly used instead of carpets for floors of middle- and high-rise houses. However, wood-based flooring materials are inferior to carpets in sound insulation. There was a drawback that the habitability was impaired.

[0003]

The inventor of the present invention has completed the present invention as a result of daily research to solve the above-mentioned drawbacks and to provide a wooden flooring material having excellent sound insulation.

[0004]

The present invention is characterized in that a foamed sheet of natural rubber / synthetic resin, a nonwoven fabric, and a foamed sheet of synthetic resin are sequentially adhered to the back surface of a wooden board. Related to flooring materials.

Hereinafter, the sound-insulating wooden flooring material of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 1 denotes a wooden board, which is a plywood, a particle board, a hard board, and an LVL.
(Parallel plywood) or the like is used. A decorative layer may be formed by sticking a precious wood veneer or a decorative synthetic resin sheet on the surface of the wooden board or applying a coating.

[0006] A foam sheet 2 of natural rubber or synthetic resin having a thickness of 1 to 3 mm is adhered to the back surface of the wooden board 1. Various resin sheets such as a vinyl chloride resin, a polyurethane resin, an acrylobutadiene styrene resin, and a polyethylene resin can be used as the synthetic resin foam sheet.

The non-woven fabric 3 to be adhered to the back of the natural rubber / synthetic resin foam sheet 2 is a sheet made of one or more of polyester fiber, polypropylene fiber, nylon fiber, etc. One in which a part of the fiber is melted by heat and the fibers are welded in a dot shape to form a sheet shape can be used. If the thickness of the fiber is too thin, the nonwoven fabric may become loose and the sound insulation performance may be reduced. Not something. The thickness of the sheet is 1 ~
3 mm is preferred.

A synthetic resin foam sheet 4 is adhered to the back surface of the nonwoven fabric 3. The synthetic resin foam sheet 4 is preferably an olefin resin foam sheet such as a polyethylene resin or a polypropylene resin, but is not limited thereto. The thickness of the synthetic resin foam sheet 4 is preferably 2 to 4 mm. If the thickness is too thin, the sound insulation performance is not good, and if the thickness is too thick, there is an economical problem. However, when walking on the floorboard, the sink of the floorboard becomes too large, and the walking feeling deteriorates.
This walking feeling occurs even when the thickness of the nonwoven fabric is too large.

As shown in FIG. 2, the wood board 1 may be composed of a front wood board 5, a sheet 7 having sound insulation, vibration damping or cushioning properties, and a perforated back wood board 6. In this case, the thickness of the front wood board 5 and the back wood board 6 is 2.5
~ 4.0 mm is preferred. If the thickness is too small, the rigidity of the floorboard becomes a problem. If the thickness is too large, there is a possibility that trouble may occur at the time of transportation and construction, in addition to the price. Examples of the sound insulation or vibration damping sheet to be bonded to the back surface of the front wooden board 5 include a powdered lead-containing vinyl chloride resin sheet, an inorganic powder-filled rubber sheet, and a vinyl chloride resin sheet.
0.8 to 2 mm is preferred. The cushioning sheet may be any sheet having a cushioning property such as a foamed sheet of natural rubber or synthetic rubber or an olefin-based foamed sheet.
1-2 mm is preferred. The hole diameter of the perforated wooden board is preferably 5 to 15 mm, but is not limited thereto. One perforated wood board is effective, but if two perforated wood boards are bonded with their holes shifted, an improvement in the sound insulation effect can be expected.

As shown in FIG. 3, the wooden board 1 is
It may be composed of a front wood board 5, a sheet 7 having sound insulation, vibration damping or cushioning properties, and a back wood board 8 arranged without joining small width wood boards. In this case, there is an advantage that a low-grade wood material such as a thinned wood material can be used for a small width wooden board.

[0011]

[Example 1] On the back of a decorative plywood having a thickness of 7.5 mm,
A natural rubber foam sheet, a 2 mm thick nonwoven fabric made of polyester fiber, and a 3.0 mm thick polyethylene foam sheet were sequentially adhered to produce a desired floor material.

[0012]

[Example 2] A 2 mm thick non-woven fabric made of polyester fiber was combined with a 2.0 mm thick natural rubber foam sheet and a 3.0 mm thick sheet.
Sandwich with polyethylene foam sheet
This sheet is a three-layer composite veneer (300mm wide, 900mm long) consisting of 2.8mm thick decorative plywood, 1.0mm thick natural rubber foam sheet, 2.7mm thick plywood with 10mm hole diameter. mm)
To produce a desired floor material.

[0014]

Example 3 The sheet used in Example 2 was 2.8 mm thick.
Plywood, 1.0mm thick natural rubber foam sheet, 3.
A three-layer composite veneer (300 mm wide, 30 mm wide, 30 mm wide softwood) with a back side wood board
The desired floor material was manufactured by sticking to the back surface having a length of 900 mm).

[0015]

Example 4 A decorative plywood, a foamed sheet and a perforated plywood used in Example 2 were sequentially laminated and then cut to produce an elongated rectangular plate having a thickness of 6.5 mm, a width of 60 mm and a length of 900 mm. The five pieces were slightly displaced in the vertical direction, and were joined by a male and female knurled mechanism so that the planar shape became a stepped shape. The male and female knurls are loosely joined so that they can be slightly bent at the joints and fit easily into the irregularities of the base, and have a slight flexibility after curing in the grooves on the back surface of the joints. Melt resin was injected and joined. Then, the sheet used in Example 2 was adhered to the entire back surface to produce a desired floor material.

[0016]

According to the present invention, the non-woven fabric is formed in a sandwich shape by a foamed sheet of a natural rubber / synthetic resin and a foamed sheet of a synthetic resin, and this is affixed to the back surface of the wooden board, so that the sound insulating property is obtained. Is very good.

[Brief description of the drawings]

FIG. 1 is a sectional view showing one embodiment of a sound-insulating wooden flooring material according to the present invention.

FIG. 2 is a sectional view showing another embodiment of the sound insulating wooden flooring material according to the present invention.

FIG. 3 is a sectional view showing another embodiment of the sound insulating wooden flooring material according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 wood board 2 foam sheet 3 non-woven fabric 4 synthetic resin foam sheet 5 front wood board 6 back wood board 7 sheet having sound insulation, vibration damping or cushioning 8 back wood board

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location E04F 15/18 602 8702-2E E04F 15/18 602K

Claims (3)

(57) [Claims] 1. A sound-insulating wooden flooring material characterized in that a foamed sheet of natural rubber / synthetic resin, a nonwoven fabric, and a foamed sheet of synthetic resin are sequentially adhered to the back surface of a wooden board. 2. The sound-insulating wooden board according to claim 1, wherein the wooden board is made of a surface wood board, a sheet having sound insulation, vibration damping or cushioning properties, and a perforated back wood board. System flooring. 3. The wooden board is characterized by comprising a front wooden board, a sheet having a sound insulating property, a vibration damping property or a cushioning property, and a back wooden board in which small width wooden boards are arranged without being joined to each other. The sound-insulating wooden floor material according to claim 1.