JPH053468U - Soundproof flooring - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a soundproofing flooring material having not only soundproofing properties but also good shock absorbing properties and heat insulating properties, and improved surface strength. [Structure] A plurality of kerfs 2 are cut from a back surface side to a front surface side of a base material plywood 1, a pressure-molded sheet 3 of soft resin foam particles 3a is laminated on the surface of the base material plywood 1, and the pressure molding sheet 3 is laminated thereon. Veneer 4
Was adhered, and the cushion material 5 was laminated on the back surface of the base plywood 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a soundproof flooring material having good impact resistance and soundproofing.

[0002]

[Prior Art]

 Conventionally, a wall material has been known in which a damping sheet made of non-woven fabric or a soft material such as natural rubber, synthetic rubber, urethane resin, silicon resin, etc. is laminated on a base plywood, and a veneer is stuck on it. There is.

[0003]

[Problems to be solved by the device]

 However, in the past, although the vibration proof property was secured, the heat insulation property was inferior. For this reason, as shown in FIGS. 3 and 4, it is considered to interpose a resin sheet made of a soft resin foam between the base plywood and the projecting plate, but the low foam resin sheet 3'is The air bubbles 6'are substantially round, the deformation is large with respect to compression, the impact absorption capacity is small, and in the high foam resin sheet 3 ", the air bubbles 6" are flat near the surface, but the inside is The shape was substantially a circle, and the deformation due to compression was small as compared with the low foam resin sheet 3 ', but the impact absorption capacity was insufficient.

The present invention has been made in view of the above circumstances, and an object of the present invention is not only soundproofing, but also good shock absorbing and heat insulating properties, and a soundproofing floor with improved surface strength. Is to provide wood.

[0005]

[Means for Solving the Problems]

 The soundproof flooring material of the present invention is formed by cutting a plurality of kerfs 2 from the back surface side to the front surface side of the base material plywood 1, and stacking the pressure molding sheet 3 of the soft resin foam particles 3a on the surface of the base material plywood 1. It is formed by stacking layers, adhering the projecting plate 4 thereon, and stacking the cushioning material 5 on the back surface of the base plywood 1. This structure solves the above problems.

[0006]

[Action]

 Since the air bubbles 6 in the pressure-molded sheet 3 of the soft resin foam particles have a flat shape, the deformation is small with respect to compression, the shock absorption capacity is increased, and the surface strength is increased, and the heat insulation property is also increased. Is ensured.

[0007]

【Example】

 The base plywood 1 has a thickness of about 3 to 5.0 mm, and veneer plywood or parallel plywood in which slices or rotary single plates are laminated on the cloth, parallel plywood, MDF, or particle board is used. The base plywood 1 is formed with a plurality of kerfs 2 from the back surface side to the front surface side. The cut grooves 2 are provided in a grid pattern. The cut grooves 2 are cut with a width of 3 mm and a pitch of 60 mm, for example. The kerf 2 extends to the surface and is connected by a damping material 7. As the damping material 7, a soft PVC sheet adhesive type or a rubber and asphalt mixed sheet adhesive type is adopted.

A pressure molding 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-molded sheet 3 is made of polyethylene, polyurethane, polyvinyl chloride, or the like, and a soft resin foam having a foaming ratio of 10 times or more is chipped and crushed, and then is directly or pressure-molded to have a foaming ratio of 5 times or less. A sheet having a thickness of 5 mm or less. As shown in FIG. 2, the air bubbles 6 in the pressure-molded sheet 3 are pressed and have a flat shape. Therefore, the deformation caused by compression is small, the shock absorbing capacity is large, and the surface strength is large. It will be.

The veneer 4 is made of natural wood, artificial name wood veneer, or a coated product thereof having a thickness of about 0.3 mm. A cushion material 5 is laminated on the back surface of the base plywood 1. As the cushion material 5, felt, synthetic rubber or natural rubber foam, or a composite thereof is used.

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

[0011]

[Effect of the device]

 According to the present invention, a plurality of kerfs are cut from the back surface side to the front surface side of the base material plywood, and the pressure-molded sheet of soft resin foam particles is laminated on the surface of the base material plywood and Since the veneer is attached to the base and the cushioning material is laminated on the back surface of the base plywood, not only can sound insulation be ensured, but the air bubbles in the pressure-molded sheet of soft resin foam particles are flat. Because of its shape, the deformation is small against compression, the impact absorption capacity is increased, the surface strength is increased, and the heat insulation is secured.

[Brief description of 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 of the above.

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

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

[Explanation of symbols]

 A Soundproof floor material 1 Base material plywood 2 Cut groove 3 Pressure forming sheet 4 Veneer plate 5 Cushion material

Claims (1)

[Claims for utility model registration] [Claim 1] A plurality of kerfs are cut from the back side to the front side of the base plywood, and a pressure-molded sheet of soft resin foam particles is laminated on the surface of the base plywood. Then, a veneer is pasted onto it, and a cushioning material is laminated on the back surface of the base plywood to create a soundproof floor material.