JPH09100617A - Laying type sound insulating wood floor material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of warping and the like by laminating a single plate of low moisture content and a single plate of high moisture content respectively on the surface and back face of plywood of wood base material made flexible in a length direction by laminating constraining material and cushioning material thereon. SOLUTION: A single plate 15 of low moisture content and a single plate 16 of high moisture content with a thickness of 0.2-1.0mm are heat-pressed to the surface and back face of plywood 14 of 2-3mm in thickness to be core material to form wood base material 11. The fiber direction of the single plates 15, 16 is in an orthogonal direction to the single plate fiber direction of the surface and back face of the plywood. Constraining material 12 such as a vinyl chloride resin sheet or a hard rubber sheet hard with large specific gravity, and cushioning material 13 formed of synthetic fiber of polyethylene, polypropylene or the like are jointed to the lower part of the wood base 11 using an adhesive. The occurrence of warping can be prevented by the combined use of the constraining material and the single plates of high moisture content with a large coefficient of contraction after lamination, and sound insulating performance can be obtained by the use of the cushioning material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wood-based soundproof flooring material for laying placed on a concrete floor slab or the like.

[0002]

2. Description of the Related Art In apartment houses and other condominiums, the problem is that the noise of life propagates to the downstairs room and the adjacent room.
On the back of the wooden floorboard used in wooden houses,
The problem is solved by directly installing a wood-based soundproof floorboard to which a foamed synthetic resin sheet, a synthetic fiber sheet or the like is attached, on a concrete floor slab via an adhesive.

[0003]

However, the construction of this wooden soundproof floorboard requires preparation and application of an adhesive, and for example, it takes 2 hours to construct a 6-tatami-mat room (3 tsubo). There was a problem. Therefore, in order to improve the workability, the floor board itself is made heavy by laminating a high specific gravity sheet mixed with aggregates such as vinyl chloride resin on the back surface of the wooden board, and it is easily dislocated on the concrete floor slab by its own weight. By making it difficult, a soundproof floorboard for laying down that does not require an adhesive has been proposed, and the construction time has been halved compared to the previous wooden soundproof floorboard, showing a considerable improvement. However, if the floor plate is not made as thin as possible, there is a drawback that the space to the ceiling surface becomes narrow. Therefore, the thickness of the wooden board is set to 2-3.
mm, the thickness of the sheet is about 3 mm to give its own weight, but the thickness is the same as before, and since the decorative board is attached to the surface, the wooden board warps in a valley shape due to absorption and release of water, and the floor board There was a problem such as thrusting up at the seams between them. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wood-based soundproof flooring material for laying which has flexibility as a whole and is less likely to warp.

[0004]

According to the present invention, there is provided a semiconductor device comprising:
The wood-based soundproofing floor material for laying down described above is a relatively thin wood base material arranged in the upper half, and is arranged below the wood base material,
Restraint material that suppresses warpage of the wood base material and a cushioning material that is entirely disposed directly below the restraint material are laminated, and a wood material for laying is provided with a real part for joining formed on the peripheral edge portion. A sound-insulating flooring material, wherein the wood base material is a plywood board in which the veneer fiber directions on the front and back sides are orthogonal to the longitudinal direction, and the fiber directions are perpendicular to the veneer fiber directions on the front and back sides of the plywood. Of the veneer laminated on the front side and the back side of the plywood, and the veneer laminated on the front side of the plywood is a veneer with a low water content when laminated, and is laminated on the back side of the plywood. As the above-mentioned veneer, a veneer having a high water content is used at the time of lamination. The wooden soundproofing floor material for underlayment according to claim 2 is the wooden soundproofing floor material for underlayment according to claim 1, wherein one of the real parts is provided on one of the upper half of the wooden base material. A real part is formed, and the female real part that is the other of the real parts and faces the male real part is formed by a notch formed in the lower part of the wood base material and a lower restraint material and a cushioning material, Moreover, the wooden base material is laminated on the lower half of the restraint material and the cushioning material while being displaced in the male part forming direction.

[0005]

In the wood-based soundproof flooring material for laying according to claims 1 and 2, the core material of a relatively thin wood-based material is used as a plywood board in which the veneer fiber directions on the front and back surfaces are orthogonal to the longitudinal direction. A plywood that is easily bent is used, and a veneer with a high water content in which the fiber direction is the longitudinal direction on the front side of this plywood and a low water content veneer is laminated, and the fiber direction is the longitudinal direction on the back side. Are stacked. Therefore, at the time of stacking, those with a high water content have a large shrinkage rate after stacking, and furthermore, since a restraint material is attached to the back surface of this wooden base material, the manufactured wooden soundproof floor material for laying It becomes a little mountain warp. Further, since a cushioning material is provided on the bottom of the restraint material, the cushioning material provides soundproofing. Particularly, in the wooden soundproofing floor material for laying according to claim 2, the upper half of the wooden base material is laminated on the lower half of the constraining material and the cushioning material while being shifted to form a wooden base material. As the male part protrudes and the lower restraint that forms the female part protrudes, placing the male part on the end of the restraint member that forms the female part makes it easy to lay wood. Can be used as a soundproof floor material.

[0006]

As a result, the wooden soundproof floor material for laying according to the first and second aspects of the present invention is unlikely to cause a valley warp despite having flexibility as a whole. Furthermore, it is not necessary to apply an adhesive on the concrete floor slab, and it is possible to construct the concrete floor slab very easily and in a short time by applying a small amount of adhesive to the real part for joining the floor boards in order to prevent displacement during walking. The cushioning material attached to the bottom has a soundproof property, and it becomes difficult for household noise to propagate to the downstairs room and the adjacent room, so that a comfortable life can be achieved.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, referring to the attached drawings, an embodiment in which the present invention is embodied will be described to provide an understanding of the present invention. Here, FIG. 1 is a cross-sectional view of a wood-based soundproof flooring material for underlaying according to an embodiment of the present invention.

As shown in FIG. 1, a wood-based soundproof flooring material 10 for laying according to an embodiment of the present invention has a width W of 80 to 1.
The length is about 20 mm and the length is about 0.9 to 1.8 m.
2 and the cushioning material 13. Hereinafter, these will be described in detail. In the wood base material 11, veneers 14 having a thickness of 0.2 to 1.0 mm laminated on the front and back surfaces of a plywood 14 having a thickness of 2 to 3 mm which is a core material are heat-pressed. The veneer fiber directions on the front and back surfaces of the plywood 14 are perpendicular to the longitudinal direction of the wooden soundproof flooring material 10 for laying, and can be curved.

The fiber directions of the veneers 15 and 16 are the same as the plywood 1
4 is oriented in a direction orthogonal to the direction of the single plate fibers on the front and back surfaces, that is, the longitudinal direction of the wood-based soundproof flooring material 10 for laying. And when laminating the wooden base material 11, the front single plate 15 is laminated.
Low moisture content is used for the backside veneer (backer veneer) 1
6 has a high water content and is hot pressed. Since the high water content veneer 16 shrinks due to the removal of water in the process of hot pressing, the manufactured wood base material 11 has a slightly warped shape with its center rising.

A vinyl chloride resin sheet having a thickness of about 1 to 3 mm as a restraint member 12 joined to the lower portion of the wood base material 11,
Although a hard rubber sheet is used, since it is hard and has a large specific gravity, it is possible to restrain the movement of the upper wooden base material 11.
Other materials can be applied as long as they can restrain the movement of the upper wooden base material 11, have a large specific gravity and are flexible to some extent. As the cushioning material 13 attached to the lower portion of the restraint material 12, synthetic fiber (nonwoven fabric) such as polyethylene or polypropylene is used. 1-2m thick
About m is sufficient, so that the soundproofing performance can be exhibited. In FIG. 1, h ₁ indicates the thickness of the wooden base material 11, and h ₂ indicates the total thickness of the restraint material 12 and the cushioning material 13.

The restraint material 12 and the cushioning material 13 are bonded to the wooden base material 11 by using an adhesive. In this case, the male base portion 17 is formed at one peripheral edge of the wooden base material 11 and the other is formed. A step 18 into which the male part 17 can be fitted is formed on the side, and the upper wooden base material 11 is joined to the restraining member 12 joined to the lower part while being displaced by about 1 to 4 mm in the male direction. As a result, the female part 19 is formed by the end of the step 18 and the restraint 12.
Is formed, so that the lower end of the female part 19 is slightly projected, and the male part 17 of the wooden soundproof flooring material 10 to be placed next is placed on this part to guide it. As a result, it becomes easy to construct the wooden soundproof flooring material 10 for laying.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a wood-based soundproof flooring material for an underlay according to an embodiment of the present invention.

[Explanation of symbols]

 10 Wooden Soundproof Flooring Material for Laying 11 Wooden Base Material 12 Restraint Material 13 Cushioning Material 14 Plywood 15 Veneer 16 Veneer 17 Male part 18 Steps 19 Female part

Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location E04F 15/00 601 8702-2E E04F 15/00 601F

Claims (2)

[Claims] 1. A relatively thin wood base material arranged in an upper half, a restraining member arranged below the wood base material to suppress warpage of the wood base material, and a whole surface immediately below the restraining material. Is a wooden sound-insulating flooring material for laying, in which a real part for joining is formed in the peripheral portion, and the wooden base material is a single-fiber direction of the front and back surfaces. Consists of plywood that is orthogonal to the longitudinal direction, and veneers whose fiber direction is orthogonal to the veneer fiber directions on the front and back surfaces of the plywood and that are laminated on the front and back surfaces of the plywood, respectively. Characterized in that a low water content veneer is used during lamination for the veneer to be laminated on, and a high water content veneer is used for during lamination for the veneer laminated on the back surface side of the plywood. A wood-based soundproof floor material for laying down. 2. A male fruit part which is one of the fruit parts is formed on one of the upper half of the wood base material, and the female fruit part which is the other of the fruit parts and faces the male fruit part is the wood material. It is formed by the notch formed in the lower part of the base material and the restraint material and the cushioning material in the lower part, and the wood base material is in the lower half of the restraint material and the cushioning material in the male part forming direction. The wood-based soundproof flooring material for laying according to claim 1, wherein the soundproofing flooring material is laminated while being staggered.