JPH076335Y2 - Floor base material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention provides a floor base material that reduces floor impact noise and improves walking feeling.

(Prior art and problems) In recent years, the number of cases where wooden floors are installed in condominiums and other condominiums has increased. However, when only wooden floors are installed on a concrete floor, floor impact noise is large and comfort in living is remarkable. It was lost.

Further, most of conventional flooring materials for process use have a large floor impact sound, and reduction of the noise has been required.

In order to solve this problem, a high-magnification foam was simply provided on the back of floor materials such as wooden floors in order to reduce floor impact noise. It suddenly sank, making it difficult to walk.

(Problems to be Solved by the Invention) The present invention aims to greatly reduce the floor impact sound in the downstairs especially in an apartment house.

(Specific Means for Solving Problems) The present invention is a device for solving the above problems, in which a plate-like body is formed on a synthetic resin base material having a flat upper surface, and a plurality of leaf-like bodies are formed under the base material. An underfloor characterized in that a cushioning material and a supporting portion that is shorter than the length of a leaf are formed integrally with the base material, and that the cushioning material and the base material or the supporting portion have a void surrounded by the floor surface. In the present invention, the leaf-like material is defined as a molded article similar to natural slender 5 to 15 mm turf, which is obtained by injection molding a synthetic resin and has a flexible elongated shape.

Hereinafter, description will be given with reference to the drawings.

FIG. 1 is a sectional view of a flooring material using a flooring material of the present invention.
Reference numeral 1 is a conventionally known floor material of 2 to 5 mm, and known floor materials such as PVC tiles, cushion floors and wooden boards are exemplified.

2 is polypropylene (PP), polyvinyl chloride (PVC),
A base material made of a synthetic resin such as ethylene-vinyl acetate copolymer (EVA) having a flat upper surface, and the upper surface of the base material may be mesh-shaped or perforated as long as it is a flat surface. The plate-like body 3 is formed on the upper surface of the base material. Plate 3 is 1 to 5 mm
Suitable are wood board, particle board, hard board and PP or ABS resin with wood powder added.

4 is a leaf-shaped body, which is generally obtained by injection molding a synthetic resin. The frond body 4 has a length of 5 to 15 mm and has an elongated shape similar to that of a natural turf leaf, is flexible, and slightly bends when walking.

The cushioning material 5 of the present invention is obtained by the aggregate of the leaf-shaped bodies.

The cushioning material may be a unit in which several leaf-like bodies are densely packed, or the one leaf-like body may be formed in an annular shape to form the cushioning material.

Since the supporting portion 6 is formed between a large number of cushioning materials 5 and the supporting portion 6 is shorter than the length of the leaf-shaped body 4 by 2 to 8 mm, the tip of the leaf-shaped body bends on the floor surface 8 when walking, No. 6 touches the floor, and the frond does not bend further.

As a result, the cushioning property and the durability are obtained in the floor base 7.

After removing the load from walking, the frond returns to its original shape.

The base material, the cushioning material, and the supporting portion are integrally formed by injection molding of synthetic resin such as PVC, PP and EVA.

(Operation of the device) When a load is applied during walking according to the present invention, the leaves 4 are flexible, so that a large number of leaves having the cushioning material 5 are gradually bent and integrated with the cushioning material. Base material 3 formed on
As the whole of the underfloor slowly sinks, the supporting part 6 shorter than the length of the frond abuts on the floor surface 8 immediately after that, and the underfloor 7 is supported by the supporting part, giving an impact to the floor and pedestrians. Is alleviated.

In this way, it is possible for the first time to obtain a floor base material that has a low floor impact noise and a comfortable walking feeling. In the base material 7 of the present application, the base material 2, the cushioning material 5, and the supporting portion 6 are integrally molded, and the cushioning material and the base material 2 or the supporting portion 6 and the void 13 surrounded by the floor surface 8 are provided. The air is separated from each other by a cushioning material and does not normally flow, so that heat insulation is maintained.

FIG. 2 is a back view of another embodiment of the present invention, and 9 is a base material. A leaf-shaped body 10 is formed in a ring shape on the surface of the base material 9, and the ring-shaped aggregate of the leaf-shaped bodies constitutes the cushioning material 11.

A support portion 12 is formed inside the annular portion of the cushioning material.

The base material, the cushioning material, and the supporting portion are integrally formed by injection molding of synthetic resin or the like, and the soundproofing effect is obtained by the above-mentioned action.

(Example) A cushioning material composed of a leaf-shaped aggregate of 10 mm in length under a mesh-like PP base material, and a supporting portion having a height of 6 mm is integrally molded with the base material and EVA between the cushioning materials. A 3 mm thick plywood plate was formed on the upper surface of the substrate, and the floor substrate of the present invention was obtained.

A PVC floor tile having a thickness of 2.5 mm was bonded onto the obtained floor substrate.

The L value was 55 when the floor base material to which the above floor material was adhered was placed on a floor slab having a thickness of 150 mm to generate a floor impact sound.

On the other hand, as a comparative example, when only the floor tiles were given a floor impact sound on the same floor slab, the L value was 70.

Thus, the floor impact sound generated by walking or the like was remarkably reduced by using the floor base of the present invention, and the noise in the room under the floor was remarkably reduced. It also had cushioning properties and had a good walking feeling.

(Effect of the device) 1. Good walking feeling was obtained regardless of the type of floor material on the surface.

2. The floor impact noise is suppressed and the habitability is good.

3. There was heat insulation.

4. It has good shock absorption and will not injure you if you fall.

[Brief description of drawings]

FIG. 1 is a sectional view of a flooring material using the flooring material of the present invention,
The figure is a rear view of another embodiment of the present invention, 2 is a substrate, 4 and 10
Is a frond, and 6 and 12 are supporting parts.

Claims (1)

[Scope of utility model registration request] 1. A plate-like body is formed on a synthetic resin base material having a flat top surface, and a cushioning material composed of a large number of leaf-like bodies and a support portion shorter than the length of the leaf-like body are the base material under the base material. A floor base material which is integrally formed with and has a space surrounded by a cushioning material, a base material or a support portion, and a floor surface.