JPS6246750Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a flooring material that is directly installed on the concrete floor surface of each floor of a high-rise building.

BACKGROUND ART Conventionally, as shown in FIG. 1, as a flooring material of this type, a flooring material 3 consisting of a decorative floorboard 1 and a sheet-like cushion material 2 bonded to the lower surface of the decorative floorboard 1 has been known. In order to apply this flooring material 3, the flooring material 3 is placed on the concrete floor surface 4 or the base plate floor surface via an adhesive, a sand bag is placed on top of it, and the flooring material 3 is pressed and bonded. However, since the area of the decorative floorboard 1 is large, it was not possible to make the flooring material 3 conform to the uneven concrete floor surface only by applying pressure using sandbags. Additionally, floor materials with this structure have the problem that floor impact noise is easily transmitted downstairs.

This idea was created in view of the above-mentioned circumstances, and it allows for better conformity to the floor surface, complete adhesion to the floor surface, reliably prevents floating, and also reduces floor impact noise to the floor below. The purpose of the present invention is to provide a flooring material for flooring that can completely block the spread of the disease.

In the flooring material for direct laying according to this invention, a heavy elastic board is glued to the bottom surface of multiple parquet veneers with small gaps between the veneer component pieces, and a sheet-shaped cushion material is attached to the bottom surface of the heavy elastic board. It is glued.

As the parquet veneer, one in which a plurality of veneer constituent pieces are arranged with small gaps and integrated with a connecting member such as paper is preferably used. Parts of the same piece may be interconnected by adhesive infiltrated into the gaps. In particular, parquet veneers made of precious woods such as oak, beech, shioji, and cherry are preferably used.
The size of the parquet veneer is approximately 150mm x 150mm.
The thickness is about 0.5 to 8.0 mm.

A heavy elastic plate is a plate-like material made of an elastic material mixed with inorganic fine powder to have a specific gravity of about 1.0 to 2.0. As elastic materials, soft synthetic resins, rubber, etc. are used, and examples of inorganic fine powders include:
Examples include calcium carbonate, calcium silicate, gypsum, and viscosity. The size of the heavy elastic board is arbitrary, but it is usually equal to or larger than the parquet veneer. If the elastic board and parquet veneer are the same size, they will fit very well into the concrete floor. The thickness of the heavy elastic board is related to specific gravity and size, but is usually about 3.0 mm.

As the cushion material, for example, a foamed body of thermoplastic synthetic resin such as polyethylene or polyvinyl chloride is used. In particular, a foam that is about 10 times larger than the above synthetic resin and contains about 30 to 60% by weight of an inorganic filler such as calcium carbonate is preferably used because of its good adhesive properties. A foam made of closed cells is preferred because it can prevent moisture absorption from the concrete floor surface. The thickness of the cushion material is approximately 1.5 to 2.0 mm.

The number of parquet veneers per cushion material is usually 4, 6, ... 24, but these numbers are not limited. A desired pattern, such as a checkered pattern, is formed by a plurality of parquet veneers placed on the cushion material.

Next, an example of this invention will be explained in detail.

In FIGS. 2 and 3, first, three veneer constituent pieces 11a are arranged with a small gap and integrated with connecting paper to form a 150 mm x 150 mm x 3 mm piece.
A plurality of parquet veneers 11 and soft polyvinyl chloride resin are mixed with the required amount of calcium carbonate to give a specific gravity of 1.7.
A plurality of heavy elastic plates 12 of 150 mm x 150 mm x 3 mm formed from a material made of aluminum, and a 450 mm thick plate made of polystyrene foam and containing 40% by weight of calcium carbonate.
A sheet-shaped cushion material 13 measuring 300 mm x 2 mm is prepared. Then, a heavy elastic board 12 is glued to the lower surface of the plurality of parquet veneers 11, and then each of the plurality of parquet veneers 11 is placed with the heavy elastic board 12 facing down, so as to cover the upper surface of the cushion material 13. The heavy elastic plate 12 is placed on the cushion material 13.
Glue to. In this way, the floor material 14 is composed of the parquet veneer 11, the heavy elastic board 12, and the cushion material 13.
is adhered to the mortar-finished concrete floor surface 15 of each floor of a high-rise building. In this way, a plurality of flooring materials 14 are stretched on the floor surface.

As described above, according to the flooring material of this invention, a plurality of parquet veneers are arranged on one cushion material so as to be separated from each other, so that the flooring material conforms to the uneven concrete floor surface. can be done very well,
Therefore, a flat finish can be obtained. In addition, since the parquet veneer itself has small gaps between the plurality of veneer constituent pieces, this also allows the flooring material to fit better into the concrete floor surface. In addition, since a heavy elastic board is interposed between the parquet veneer and the cushion material, the weight of the board presses the cushion material against the concrete floor surface, ensuring complete adhesion between the floor surface and the cushion material. This makes it possible to reliably prevent the flooring material from floating after adhesion. Furthermore, by interposing the heavy elastic board, it is possible to block the propagation of floor impact sound to the lower floors, and the self-weight of the flooring material can be increased, making it easier to install the flooring material. be able to.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing a conventional flooring material in a tensioned state, Fig. 2 is a perspective view showing an exploded state of a flooring material according to an embodiment of this invention, and Fig. 3 is a flooring material according to an embodiment of this invention. FIG. 3 is a vertical sectional view showing a stretched state. 1... Parquet veneer, 11a... Veneer component piece,
12...Heavy elastic board, 13...Cushion material, 1
4...Floor material for floor covering, 15...Concrete floor surface.

Claims (1)

[Scope of utility model registration request] A flooring material for direct laying, in which a heavy elastic board is adhered to the lower surface of a plurality of parquet veneers having small gaps between the veneer component pieces, and a sheet-shaped cushion material is adhered to the lower surface of the heavy elastic plates.