JP2756642B2 - Floor structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure formed on a floor base in a house.

[0002]

2. Description of the Related Art Conventionally, as a floor structure of a house, a discarding board is put on the whole floor, such as a joist or a leg of a free access floor, and then a floor board made of a plywood board is used on the surface together with glue and nails. Then, the floorboard is fixed by nailing the inside of the male upper surface on the side of the floorboard, and then the female face of the adjacent floor material is fitted to the male face and the male face is similarly nailed and fixed to form the floor surface. What is known is.

[0003]

However, when nailing is performed on the male part of the floor material using plywood as a substrate, a nail head remains on the surface of the real part, and this nail is used in actual fitting with the adjacent floor material. The head is caught and cannot fit well. Also,
At the time of actual flooring formation, if the fiber direction of the veneer at the position exposed on the male front or back surface is orthogonal to the actual length direction, the direction of the blade by cutting and the fiber direction of the veneer should be orthogonal. In addition, cracks tend to occur on the actual surface, and in addition, cracks along the fiber direction occur on the surface veneer due to nailing, making it more difficult to perform actual fitting.

Further, since the plywood used as a substrate of the flooring material is manufactured by laminating and bonding veneers made of natural wood, the problem of depletion of natural resources is widely taken up worldwide, and raw wood as a raw material is used. As it becomes difficult to cut down and the quality of raw wood deteriorates, it becomes difficult to obtain a large number of good quality veneers for veneers, and it is difficult to supply a large quantity of high quality boards to the market. Becomes This problem is expected to become more serious in the future, and there is an aspiration to provide a substitute for plywood as a flooring substrate.

[0005]

SUMMARY OF THE INVENTION In view of the above problems, the present invention uses a base material instead of a plywood substrate, and furthermore, it is easy to nail, and it is possible to perform the actual fitting after fixing. This is the result of intensive studies to provide a floorboard that can be made.

That is, according to the present invention, in a floor structure in which a discarding plate is provided on a floor base and a floor plate having a real is nailed and fixed on the surface thereof, high specific gravity layers 13 and 14 having a higher specific gravity than the inside are provided on the front and back portions. A wooden board having a male specific convex portion 11 and a female specific concave portion 12 formed in a low specific gravity layer on a side surface thereof is used as a floor plate 1, and the male real convex portion 11 or the female real rear side convex portion of the floor plate 1 is used. The floor structure is nailed and fixed to the discarding plate 2 from the upper surface 12a through the back high specific gravity layer 14.

According to the present invention, a wood fiber board having high specific gravity layers 13 and 14 having a higher specific gravity than the inside is used as the floorboard 1 on the front and back portions thereof, and the male specific convex portions 11 and the female realities are provided on the side surfaces of the low specific gravity layer. The male convex part 11 or the female real back side convex part 12a formed in the low specific gravity layer on the side surface using the concave part 12 is formed.
By nailing and fixing through the back high specific gravity layer 14 having a high specific gravity from the upper surface, the nailed portion has a low specific gravity and is a homogeneous material having no fiber direction, so nailing is easy and cracking is possible. And the nail 4 can be easily driven into the base material without leaving a nail head on the surface.

Further, since the nail 4 is driven through the back high specific gravity layer 14, the nail holding force of the back high specific gravity layer 14 is excellent, and the floor plate 1 can be securely fixed by nailing. You can do it.

[0009]

FIG. 1 shows an example of a sectional view of a floor structure according to the present invention, in which a plywood, a wood fiber board, a wood chipboard, a veneer laminated board, a ground board, etc. The plate 2 is disposed tightly and fixed to the joist 3 with nails and / or glue.

On the surface of the discarding plate 2, a floor plate 1 having a nut formed on the side is nailed on the male upper surface, and is fixed to the discarding plate 2 in combination with glue if necessary. It was done. Examples of the floor base include the legs of the free access floor in addition to the joists 3.

As shown in FIG. 2, the floorboard 1 of the present invention uses a wood fiber board obtained by integral molding having a high specific gravity layer 13 and a high specific gravity layer 14 on the front and back sides having higher specific gravity than the inside. It is the one that forms the real fruit on the wood surface. Then, a nail having a male specific convex portion 11 and a female specific concave portion 12 formed in a low specific gravity layer at the tip end of the wood fiber board is used, and the nail 4 is driven from the upper surface of the male specific convex portion 11 through the rear high specific gravity layer 14.

With such a configuration, since the floorboard 1 is a homogeneous wooden fiberboard having no fixed fiber direction, cracks or the like in the fiber direction that occur when a wooden veneer is nailed can be prevented. Moreover, the nail can be easily driven because of the low specific gravity layer of the wood fiber board, and the nail can be driven to the inside so that the nail head does not remain on the surface of the male convex part 11.

When the nail is driven, the specific gravity around the nail increases. However, since the nail is driven into the low specific gravity layer, the increase in the specific gravity around the nail can be absorbed in the male convex portion 11 and the nail is driven. There is no bulging around.

Furthermore, since nails are driven through the back high specific gravity layer 14, the floor plate 1 can be securely fixed by the excellent nail holding force of the back high specific gravity layer 14.

The specific gravity of the wood fiberboard used for the floorboard 1 is 0.4 to 0.9 g / cm ³ , and the high specific gravity layers 13 and 14 formed on the front and back have an average specific gravity of 0 g / cm ^3. .
8 to 1.4 g / cm ³ , the low specific gravity layer therein is in the range of 0.4 to 0.75 g / cm ³ , and the high specific gravity layer is at least 0.1 g / cm ³ compared to the low specific gravity layer. cm ³ or more, preferably 0.2 to 0.8 g / cm ³ .

If the thickness is less than the above range, cracks may occur in the real part when nailing the real part, and a sufficient nail holding force due to the high specific gravity layer on the back side is not preferable. That is, as the difference in specific gravity between the high specific gravity layer and the low specific gravity layer becomes smaller, the effect that the nail 4 is easily driven and the nail holding force is excellent is reduced.

A decorative layer 15 formed by adhering a decorative sheet such as a decorative veneer, decorative paper, a synthetic resin sheet, or the like, or applying a desired decorative pattern or a colored coating on the surface of the floorboard 1 as necessary. Can be provided.

FIG. 3 shows another embodiment of the present invention, in which a female rear-side convex portion 12a is replaced with a front-side convex portion 12b.
This shows a floor structure formed longer and nailed and fixed from the upper surface of the rear side convex portion 12a through the rear high specific gravity layer 14.

In this manner, even when the female nut is fixed to the rear side convex portion 12a of the female nut by nailing, by forming the female real portion on the low specific gravity layer of the wood fiber board, the front surface side of the female real rear side convex portion 12a is formed. It becomes a low specific gravity layer, can perform nailing satisfactorily without generating cracks or the like on the surface of the female real back side convex portion 12a, and extend to the inside so that a nail head does not remain on the surface of the female real back side convex portion 12a. The nails can be driven in and the floorboard 1 can be securely fixed by the excellent nail holding force of the back high specific gravity layer 14.

[0020]

According to the floor structure of the present invention, in a floor structure in which a floor plate 1 is nailed and fixed to a discarding plate 2 which is nailed and fixed on a floor base, a high specific gravity layer 13, which has a higher specific gravity than the inside,
Male convex part 1 on the low specific gravity layer on the side of the wood fiber board having
1 and the female concave portion 12 are formed as a floor plate 1. The floor plate 1 is provided with the male convex portion 11 or the female real rear side convex portion 12 a from the upper surface through the back high specific gravity layer 14 to the discarding plate 2. Due to the structure fixed by nailing, since a uniform wood fiber board having no fixed fiber direction is used as the floorboard 1, a book with high dimensional accuracy can be produced without cutting when forming the book by cutting. Can be formed.

Further, cracks or the like in the fiber direction which occur when the wooden veneer is nailed are not generated, and the male convex part 11 or the female real rear side convex part 12a into which the nail is driven is formed of the wood fiber board. Because of the low specific gravity layer, nails can be easily driven, and the nails can be driven into the interior so that the nail head does not remain on the actual surface.

Even when the nail is driven into the inside, the periphery of the nailed portion does not rise. Therefore, the actual fitting with the adjacent floor plate 1 can be performed well. Further, the floorboard 1 can be securely fixed by the excellent nail holding force of the back high specific gravity layer 14. In addition, floor board 1
Since the wood fiber board used as the wood fiber board is obtained by using small pieces of crushed or defibrated raw wood that cannot be used as a veneer, the resources can be effectively used and the natural destruction can be prevented.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of the floor structure of the present invention,

FIG. 2 is an enlarged sectional view of the female and male parts;

FIG. 3 is an enlarged sectional view of another embodiment;

[Explanation of symbols]

1: floor board, 2: discarding board, 3: joist, 4: nail, 1
0: floor board substrate, 11: male convex portion, 12: female concave portion, 12
a: Female real back side convex part, 12b: Female real front side convex part, 13:
Surface high specific gravity layer, 14: back high specific gravity layer, 15: decorative layer.

Claims (1)

(57) [Claims] 1. A floor structure in which a discarding sticking board is provided on a floor base and a floor board having a real is nailed and fixed on the surface thereof, and a wood fiber board having a high specific gravity layer having a higher specific gravity than the inside is used on both sides. A floor plate having a male specific convex portion and a female real concave portion formed on the low specific gravity layer on the side surface thereof is used as a floor plate, and discarded from the upper surface of the male real convex portion or the female real rear side convex portion through the rear high specific gravity layer. A floor structure characterized by being nailed to a sticking plate.