JPS6259756A - Method for fixing soundproof wooden floor material to concrete floor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for fixing sound-insulating wooden flooring to a concrete floor.

Prior art and its problems Conventionally, concrete nails or adhesives have been used to directly fix sound-insulating wooden flooring materials having a sound-insulating foam layer on the back side to concrete floors.

However, if concrete nails are used in a condominium or the like where there are residents downstairs, the impact sound when nailed is loud, which may cause trouble to the residents downstairs. Therefore, adhesives have to be used, but in this case, poor adhesion may occur. Furthermore, when the flooring material is removed from the concrete floor for renovation, only the foam layer on the back side remains adhered to the floor surface, and it takes time and effort to remove it. Particularly in stores and the like, where floors are renovated in a relatively short period of time, it is a major problem that the flooring material cannot be easily removed from the concrete floor.

An object of the present invention is to provide a method for fixing sound-insulating wooden flooring to a concrete floor, which causes less noise during construction than using concrete nails and allows for efficient renovation.

Means for Solving Problems In order to achieve the above object, the method of fixing sound insulating wooden flooring to a concrete floor according to the present invention is to directly fix sound insulating wooden flooring having a sound insulating foam layer on the back side to a concrete floor. To do this, after placing the flooring material in the specified location on the concrete floor, first drill a plug insertion hole from the part of the flooring material to be nailed to the concrete floor, then insert the plug into the insertion hole, and finally insert the plug. A nail is driven into the central hollow part of the plug to inflate the plug, and its outer circumferential surface is brought into pressure contact with the inner circumferential surface of the insertion hole.

Example Embodiments of the invention will be described below with reference to the drawings.

The sound insulating wooden flooring material in the example has a length of 18QQmm,
A wooden board (1) with a width of 300 mm and a thickness of 8 mm is divided into two layers in the thickness direction to form an upper divided layer (1) with a thickness of 5 mm.
2) and a lower dividing layer (3) of 3 mm thickness with a thickness of 1 m.
A sound insulating foam layer (4) of 5 mm in thickness is interposed therebetween, and a 5 mm thick sound insulating foam layer (5) is provided on the back side.

The wooden board (1) is plywood, and its surface has a thickness of 0.3
An n+n+ decorative veneer (6) is pasted.

Upper notches for mutual cutout (
7), the same lower notch (8) is provided on the remaining two sides, and the lower notch (8) side is the upper dividing layer (2), the sound insulation foam layer (4) and the lower dividing layer ( 3).

The sound insulation foam layer (5) on the back side has an upper layer (9) and a lower layer (1
0), and a plywood board 1) with a thickness of 3n+m is bonded to its top surface, and a wooden board (1) is placed on top of the plywood board (11).
1) are joined with a slight shift in the width direction.

The sound insulation foam layers (4) and (5) are both made of polyethylene, and the foaming ratio is 10 times for the intervening sound insulation foam layer (4) and 9 times the foaming ratio for the upper layer (9) of the sound insulation foam layer (4) on the back side. ) is 30
The lower layer (10) is 20 times larger.

When directly fixing the sound insulating wooden flooring material (A) having one sound insulating foam layer (5) on the back side to the concrete floor (B), place the flooring material (A) at a predetermined location on the concrete floor (B). After that, first drill a plug insertion hole (12) from the place where the flooring material (A> should be nailed) to the concrete floor (B) (see Figure 1).Next, insert the plug into the hole (12). (13) (see Figure 2).Finally, insert a regular nail (13) into the central hollow part (16) of the plug (13).
4) to inflate the plug (13) and press its outer circumferential surface against the inner circumferential surface of the insertion hole (12). the result,
The sound-insulating wooden flooring (A) is securely fixed to the concrete floor (B) (see Figure 3).

Then, apply adhesive to the nailing surface (15) of the fixed flooring material (A>), and as shown in FIG.
Then, other floor materials (AI>(A2)) are joined to the concrete floor (A2), and these are sequentially fixed to the concrete floor (B) in the same manner as above.

In addition, as a specific example of wood board, plywood is common, but there are also particle board, hard board, medium specific gravity I
! You can give things like fiberboard. In addition, as materials for sound insulation foam, all foam-forming materials such as polyethylene, polypropylene, polyurethane, polystyrene, and vinyl chloride can be used, but since they are used for flooring, they are hygroscopic. It is better to use fewer adhesives, and it is preferable to use adhesives that are easy to adhere to during work. In addition, the sound insulation foam placed on the complimentary surface may have one layer, but it is usually two layers, and it is preferable that the foaming ratio is higher in the upper layer and lower in the lower layer.
Also, in both figures, closed cells are preferable to open cells, but closed cells are especially better in the lower layer than in the upper layer. Of course, the number of layers is not limited to two, and there may be cases of three or more layers, but in this case, those with a high expansion ratio and those with a low expansion ratio are arranged alternately. The appropriate value for the foaming ratio varies depending on the material of the foam, but for polyethylene, a high value is 1.
A ratio of 0 to 50 times, or as low as 5 to 20 times, is used, and a plurality of layers may be formed as appropriate within this range.

Effects of the Invention According to the method of fixing sound-insulating wooden flooring to a concrete floor of the present invention, although nails are used, holes for plugs are first drilled from the place where the flooring is to be fastened to the concrete floor. Next, the plug is inserted into the insertion hole, and finally, a nail is driven into the central hollow part of the plug to inflate the plug and press its outer circumferential surface against the inner circumferential surface of the insertion hole. Unlike pouring directly into the concrete floor,
The only sound produced is the sound of hitting the nail head. Also, when renovating the floor, when removing the flooring material from the concrete floor, remove the flooring material with a crowbar, etc., and a plug with a nail will remain on the concrete floor. It can be handled from the hole in the floor. If only the plug remains, remove it with pliers.

In this way, the flooring can be removed easily and efficiently, and since no adhesive is used, the removed surface is clean and reinstallation is easy.

[Brief explanation of the drawing]

Figures 1 to 3 are perspective views showing an example of the present invention in the order of steps, and Figure 4 is a sound insulating wooden flooring material fixed to a concrete floor by the method of this invention, and another flooring material being joined together. It is a perspective view showing a state. (A)...Sound insulating wooden floor material, (B)...Concrete floor, (5)...Sound insulating foam layer, (12)...Plug insertion hole, (13)... Plug, (14)...Nail, (16)...Central hollow part of the plug. Patent applicant Asahi Special Plywood Co., Ltd. October 1985, ``Mr. Uga Michibu, Commissioner of the Japan Patent Office, Table of Cases'' Mi It/(Japanese Patent Office Patent Application No.
7317 No. 2, Title of the invention: Method for fixing sound-insulating wooden flooring to a concrete floor 3, Relationship to the case of the person making the amendment Patent applicant address: 5-7 Yokobori, Higashi-ku, Osaka Name/designation: Asahi Special Plywood Co., Ltd. 4 , 4 non-person agents r on page 15, line 13 of the specification [Correct 41J to r (51J).

Claims (1)

[Claims] Sound-insulating wooden flooring material with a sound-insulating foam layer (5) on the back side (
When fixing A) directly to the concrete floor (B),
After placing the flooring material (A) at a predetermined location on the concrete floor (B), first drill a plug insertion hole (12) from the part of the flooring material (A) to be nailed to the concrete floor (B),
Next, insert the plug (13) into the insertion hole (12), and finally drive the nail (14) into the central hollow part (16) of the plug (13) to inflate the plug (13) and tighten its outer circumferential surface. A method for fixing a sound-insulating wooden flooring material to a concrete floor, which comprises pressing the material into contact with the inner peripheral surface of an embedding hole (12).