JP2530583Y2 - Soundproof 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 soundproof flooring material having good impact resistance and soundproofing.

[0002]

2. Description of the Related Art Conventionally, a damping sheet made of a soft material such as a nonwoven fabric or a natural rubber, a synthetic rubber, a urethane resin, or a silicone resin is laminated on a plywood base material, and a veneer is adhered thereon. It has been known.

[0003]

However, in the prior art, although the vibration proof property is ensured, the heat insulating property is inferior. For this reason, as shown in FIG. 3 and FIG. 4, it is considered that a resin sheet made of a soft resin foam is interposed between the base material plywood and the veneer. Bubble 6 'is a substantially perfect circle, deforms greatly upon compression, and has a small shock absorption capacity. In high-foam resin sheet 3 ", bubble 6" is flat near the surface, but the inside is flat. The shape was substantially a perfect circle, and although the deformation due to compression was smaller than that of the resin sheet 3 'made of a low-foamed material, the impact absorbing power was insufficient.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a soundproof flooring material having not only soundproofing properties but also good shock absorption and heat insulating properties and improved surface strength. To provide.

[0005]

According to the sound-insulating flooring material of the present invention, a plurality of cut grooves 2 are cut in a base material plywood 1 from the back side to the front side, and soft resin foam particles are formed on the surface of the base material plywood 1. 3a is formed by laminating the press-formed sheet 3a, pasting the veneer 4 thereon, and laminating the cushioning material 5 on the back surface of the base material plywood 1, which solves the above problem. It is.

[0006]

The bubbles 6 in the pressure-formed sheet 3 of the soft resin foam particles have a flat shape, so that the deformation is small with respect to the compression, the shock absorbing capacity is increased, and the surface strength is also increased. Moreover, heat insulation is ensured.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A base plywood 1 is about 3 to 5.0 mm, and a veneer plywood or a parallel plywood obtained by laminating a slice or a rotary veneer on a cloth, or an MDF or particle board is employed. A plurality of cut grooves 2 are formed in the base material plywood 1 from the back side to the front side. The cut grooves 2 are provided in a lattice shape. The kerf 2 has a width of 3
mm and the pitch is cut at 60 mm. This kerf 2
Have reached the surface and are connected by the damping material 7. As the vibration damping material 7, a soft PVC sheet adhesive type or a rubber and asphalt blended sheet adhesive type is adopted.

A pressure-formed sheet 3 of soft resin foam particles 3 a is laminated on a damping material 7 on the surface of the base plywood 1. The pressure-formed sheet 3 is made of polyethylene, polyurethane,
It is a sheet having a thickness of 5 mm or less in which a soft resin foam having a foaming ratio of 10 times or more, such as polyvinyl chloride, is chipped and pulverized, and then directly or pressure-formed to make the foaming ratio 5 times or less. The bubbles 6 in the pressure-formed sheet 3 are
As shown in FIG. 2, it is pressed and has a flat shape,
Therefore, the deformation is small with respect to the compression, the shock absorbing ability is large, and the surface strength is also large.

The veneer plate 4 is a single plate of natural wood or artificial precious wood or a painted product thereof having a thickness of about 0.3 mm. A cushion material 5 is laminated on the back surface of one of the base material plywoods.
As the cushion material 5, a felt, a synthetic rubber or a natural rubber foam or a composite thereof is employed.

The soundproofing floor material A is laid, for example, directly on a concrete surface of a building via an adhesive.

[0011]

[Effect of the Invention] In the present invention, a plurality of cut grooves are cut in the base material plywood from the back side to the front side, and a pressure-formed sheet of soft resin foam particles is laminated on the surface of the base material plywood. Since a veneer is adhered on top of it and a cushioning material is laminated on the back surface of the base material plywood, it is possible to ensure soundproofing, as well as bubbles in the pressure-formed sheet of soft resin foam particles. Due to the flat shape, the deformation is small with respect to the compression, the shock absorbing ability is increased, the surface strength is increased, and the heat insulating property is ensured.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the pressure-formed sheet in the above.

FIG. 3 is a sectional view showing a resin sheet in a conventional example.

FIG. 4 is a cross-sectional view showing a resin sheet in another conventional example.

[Explanation of symbols]

 A soundproof flooring material 1 base material plywood 2 kerf 3 pressure formed sheet 4 veneer 5 cushion material

Claims (1)

(57) [Scope of request for utility model registration] 1. A plurality of cut grooves are cut from the back side to the front side in a base material plywood, a pressure-formed sheet of soft resin foam particles is laminated on the surface of the base material plywood, and a veneer is pasted thereon. A soundproof flooring made by attaching a cushioning material to the back of a plywood substrate.