JP2793064B2 - Architectural flooring - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flooring material for construction, and more particularly to a flooring material for construction laid directly on a floor substrate made of plywood, an RC concrete floor substrate, or a smooth floor substrate made of an OA floor or the like. About.

[0002]

2. Description of the Related Art Conventionally, when a floor is directly finished on a floor substrate as described above, the construction is simple and easy to replace, so that carpets and carpets are laid, or a cushion floor or a long floor is used. Adhesive bonding of a synthetic resin sheet-like flooring made of a PVC sheet or the like has often been adopted.

[0003] In recent years, demands for wood flooring materials have increased due to needs such as livability, durability, hygiene such as mites, and a high-grade appearance. Demand for architectural flooring made of wood-based directly bonded flooring, which is directly used and constructed, has increased rapidly. And, as the latter building flooring material, a rectangular muk material or a plywood flooring material, or a fibrous or sheet-like cushioning material adhered to the lower surface of a rectangular plywood flooring material to enhance soundproofing. Etc. are often used.

[0004] In this case, as shown in FIG. 4, in order to join the building flooring materials such that the side surfaces in the long side direction contact each other so that no gap is formed, as shown in FIG. A method is used in which a male part a is formed on the side surface and a female part b is formed on the other side, and the male part a and the female part b are actually joined.

[0005]

However, if there is a slight unevenness in the floor substrate or distortion or torsion occurs in a woody portion such as a chrysanthemum or a plywood flooring, a gap is generated in an actual joint. The aesthetic appearance of the finished floor may be impaired, or floor noise may occur when a person walks on the building flooring.

[0006] In view of the above, the present invention maintains the beautiful appearance of the finished floor surface and prevents floor noise even when a person walks on the architectural floor material by preventing a gap from being generated at the actual joint. The purpose is not to occur.

[0007]

In order to achieve the above object, according to the present invention, the male part is composed of a thin wood plate having many cracks and a flexible resin sheet. The part comprises a thin wood plate having a number of cracks and a flexible resin sheet provided with a gap below the thin wood plate to make the male part and female part flexible. .

[0008] Specifically, a solution taken by the invention of claim 1 is a thin wood plate, a veneer attached to the upper surface of the thin wood plate, and a flexible resin attached to the lower surface of the thin wood plate. A male part formed by projecting a lower part of one side of the thin wood plate and an upper part of the resin sheet on one side surface of a long side of the rectangular building floor material made of a sheet made of resin. And a gap is formed between the other side of the long side of the thin wood sheet, leaving an upper part of the other side of the thin wood sheet and a lower part of the other side of the resin sheet. A female real part having a shape corresponding to the real part is provided, and an upper surface of a lower portion of one side of the thin wooden sheet constituting the male real part and a lower surface of an upper part of the other side of the thin wooden sheet constituting the female real part. Has a structure in which a number of cracks are formed.

According to a second aspect of the present invention, a large number of cracks are formed on an upper surface or a lower surface of a thin wooden plate constituting a building flooring material, thereby giving flexibility to the thin wooden plate. It is intended to improve the familiarity between the building floor material and the floor substrate, and specifically, in the configuration of claim 1, the thin wood plate is set so that the fiber direction is set to the short side direction, and Flexibility is provided by a large number of cracks formed on at least one of the upper surface and the lower surface, and the veneer adds a configuration in which the fiber direction is set to be the long side direction. .

According to a third aspect of the present invention, in order to increase the flexibility of the flooring material for construction, the thickness of the veneer is reduced to less than half the thickness of the thin wooden board. This is to add the set configuration.

According to a fourth aspect of the present invention, in order to increase the low center of gravity of the building flooring material and to improve the adaptability between the building flooring material and the floor base, the resin composition according to the first to third aspects of the present invention has the following features. The specific gravity of the sheet made of sheet is added to a configuration that is set to 1.5 times or more of the specific gravity of the thin wood board.

[0012]

According to the constitution of the first aspect, the male part has a flexible resin sheet provided on one side of a thin wooden plate having a large number of cracks formed on an upper surface and a lower side of the one thin wooden plate. It has flexibility because it consists of one side. In addition, the female real part is provided with a gap between the other side of the thin wood plate having a number of cracks formed on the lower surface and the other side of the thin wood plate below the other side of the thin wood plate. The female part also has flexibility because it has a flexible resin sheet and the other side. Therefore, the flexible male part and female part have contact at the actual joint.

According to the second aspect of the present invention, the thin wood plate is provided with flexibility by a large number of cracks formed on at least one of the upper surface and the lower surface, and the lower surface of the thin wood plate has flexibility. Is affixed,
Architectural flooring also has flexibility.

Further, the fiber direction of the thin wood plate is set to the short side direction, and the veneer attached to the upper surface of the thin wood plate has the fiber direction set to the long side direction. I have. For this reason, despite the fact that many cracks are formed in the thin wood sheet, the thin wood sheet does not fall apart, so that sufficient flexibility can be imparted to the thin wood sheet.

Further, since a large number of cracks are provided in the thin wood sheet, the stretching force generated in the thin wood sheet when the thin wood sheet absorbs or releases moisture is hardly transmitted to the inside of the thin wood sheet. The stress associated with the above is alleviated, so that the thin wood plate is unlikely to be warped or twisted.

According to the third aspect of the present invention, the thickness of the veneer among the thin wood, veneer, and resin sheet constituting the building flooring material is set to be not more than half the thickness of the thin wood. Due to the low rigidity of the veneers, the flexibility of the building flooring is further improved.

According to the fourth aspect of the present invention, the specific gravity of the resin sheet is set to 1.5 times or more of the specific gravity of the thin wood plate. Together with this, the familiarity with the floor base is further improved.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a construction floor material according to an embodiment of the present invention.

As shown in FIG. 1, the architectural flooring is made of a thin wood plate 10 provided with flexibility by a number of cracks 10a formed on the lower surface, and a veneer plate 12 adhered to the upper surface of the thin wood plate 10. And a flexible resin sheet 18 adhered to the lower surface of the thin wooden board 10 and is formed in a rectangular shape. The size of the building flooring is not particularly limited, but an example is given. And the length in the short side direction is 100 mm
Thus, the length in the long side direction can be set to about 900 mm or 1800 mm.

On one side (the right side in FIG. 1) of the building floor material, a male part 22 is provided which comprises a lower part of one side of the thin wooden plate 10 and an upper part of the resin sheet 18. In addition, a large number of cracks 10a are exposed on the upper surface of the lower part of one side of the thin wooden plate 10, that is, the upper surface of the male part 22.
On the other side (left side in FIG. 1) of the flooring material for building, the upper part of the other side of the thin wood plate 10 and the resin sheet 1
8 is provided with a lower part of the other side part and a gap part formed between the two parts, and a female part 24 having a shape corresponding to the male part 22 is provided. Numerous cracks are also exposed on the lower surface 24a of the upper part of the other side part 10, ie, the upper wall surface of the female part 24.

The type of the wood thin plate 10 is not particularly limited, and conifers or Rawan (Southern hardwoods) can be used. The thickness of the wood thin plate 10 is preferably about 2 to 8 mm. It is preferable to set the fiber direction to the short side direction.

The veneer plate 12 is bonded to the upper surface of the thin wood plate 10 so that the fiber directions of the veneer plate 12 cross each other, that is, the fiber direction of the veneer plate 12 is in the long side direction. The veneer 12 can be a natural or artificial one.
Is less than 3 mm and 且 つ of the thickness of the thin wood plate 10
It is preferable to set the following dimensions in order to impart flexibility to the building flooring material.

The adhesive for bonding the thin wood plate 10 and the veneer plate 12 is not particularly limited, but a commonly used general-purpose adhesive such as a urea resin, a melamine resin, a phenol resin, a urethane resin, or a rubber is used. be able to.

The type of the resin sheet 18 is not particularly limited, but vinyl chloride resin, urethane resin, synthetic rubber resin, polyethylene resin, various recycled plastics and the like can be used. These resins include calcium carbonate, silica, alumina, The specific gravity of the resin sheet 18 is made to be 1.5 times or more the specific gravity (0.4 to 0.7) of the thin wood board 10 by appropriately mixing heavy powder such as carbon black, metal powder or metal oxide powder. Is preferable, and it is more preferable that the specific gravity of the thin wood plate 10 is twice or more.

Further, a resin sheet 18 having a thickness of about 1/3 to 2 times the thickness of the thin wooden board 10 is attached to the lower surface of the flexible thin wooden board 10, and further attached to the upper surface of the thin wooden board 10. When the fiber direction of the veneer plate 12 is set to the long side direction of the rectangle, it is possible to obtain an architectural flooring material that is flexible in the long side direction and has flexibility.

Hereinafter, a method of manufacturing the building flooring material according to the above embodiment will be described.

First, a coniferous or rawan raw wood is cut by a rotary lace or a slicer, and is made of a normal rotary veneer or slice veneer having a large number of microscopically or clearly visible cracks 10a on the lower surface. Wood thin plate 10
Get.

Next, after applying an adhesive to one or both of the thin wooden board 10 and the veneer board 12, as shown in FIG. 2, both are laminated and pressed together or heat-pressed for a predetermined time to adhere to each other. The two are integrated. In this case, in the present embodiment, the side where the crack 10a is not generated in the thin wooden board 10 is set on the upper surface.
The side where the crack 10a occurs at 0 may be set on the upper surface. Also, as a matter of course, when the cracks 10a are generated on both surfaces of the thin wooden board 10, any surface may be set as the upper surface.

Next, as shown in FIG. 3, the wood thin plate 10 to which the protruding plate 12 is adhered is passed between a plurality of pairs of rollers 16 and 16 so that a bending force is applied to the wood thin plate 10. The ten cracks 10a are enlarged. When the crack 10a of the thin wooden board 10 is enlarged in this way, the thin wooden board 1
A value of 0 indicates that the rigidity is reduced and becomes flexible. In this case, the wood thin plate 1
The crack 10a of 0 is enlarged, and a crack 10a deep enough to reach the adhesive layer between the veneer plate 12 is also formed. However, the thin wood plate 10 and the veneer plate 12 are adhered so that their fiber directions cross each other. Therefore, even if a fine crack is generated in the veneer plate 12, the crack does not expand, so that the wood thin plate 10 can be kept in an integrated state without being divided.

In the above-mentioned manufacturing method, a thin wood plate 10 having a large number of cracks 10a was used, and the thin wood plate 10 was given flexibility by expanding the cracks 10a. A large number of deep cracks 10a can be intentionally formed by changing the shape of the blade at the time of cutting, adjusting the temperature and time of steaming for the raw wood before cutting, or adjusting the pressure of the nose bar of the rotary race. After generating the veneer or obtaining the veneer under normal conditions, the veneer may be wrung or curved by a roller or the like to generate a large number of deep cracks 10a.
Furthermore, a small diameter wood that is easily cracked is cut by lace as appropriate, or a large number of spot-like impacts or pressing forces that enlarge cracks in the veneer after cutting with such a lace are applied, and a large number of deep The crack 10a may be generated. In addition, small diameter wood that is easily cracked is cut by lace as appropriate, or a large number of spot-like impacts or pressing forces that enlarge cracks in the veneer after cutting with such lace are applied, and many deep The crack 10a may be generated. However, it is preferable that the processing described above is performed to such an extent that the veneer is not finely divided or damaged during handling such as transportation. Thus, many cracks 1
After laminating the veneer 12 as described above, the wood thin plate 10a that intentionally generated 0a can further expand the crack 10a by applying a bending force with a roller or the like,
In addition, in the case where the film is formed to have a sufficient flexibility without applying such a bending force by a roller or the like, the process of applying the bending force by the roller or the like is not particularly necessary.

As described above, the crack 1 of the thin wooden board 10
When the depth of Oa is increased and the number of cracks 10a reaching the adhesive layer is increased, a shearing force is also applied to the wood thin plate 10, and the wood thin plate 10 can also be formed into a so-called reed-like, highly flexible state. .

Next, a resin sheet 18 is adhered to the lower surface of the thin wood board 10 to which flexibility has been imparted, using an adhesive. The adhesive is not particularly limited, and an adhesive obtained by bonding the above-described thin wood plate 10 and the veneer plate 12 can be used as appropriate.

Next, a male part 22 is attached to one side of the long side of the thin wooden board 10 to which the veneer 12 and the resin sheet 18 are adhered.
The female floor portion 24 is formed on the other side of the long side to obtain a flooring material for building as shown in FIG.

As described above, the wood thin plate 10, the veneer 12 and the resin sheet 18 which are close to the final shape may be prepared in advance and these may be adhered to each other. After laminating a wood thin plate, a veneer and a resin sheet to each other, it may be cut into a predetermined size and a male part 22 and a female part 24 may be provided.

Further, in the above-described manufacturing method, after the veneer plate 12 is attached to the upper surface of the wooden thin plate 10,
Is shown in which the veneer 12 is pasted on the wood thin plate 10 under softening or intentionally softened in advance. Alternatively, a resin sheet 18 is stuck on the lower surface of the wood thin plate 10 and then the wood thin 10 may be softened, or a veneer 12 may be attached to the upper surface of the thin wood plate 10 and the resin sheet 1 may be attached to the lower surface.
After sticking 8, the thin wood plate 10 may be softened.

[0036]

As described above, according to the flooring material for construction according to the first aspect of the present invention, the male part is flexibly connected to the lower part of one side of the thin wooden plate having a large number of cracks formed on the upper surface. The male part has flexibility because the upper part of one side part of the resin sheet having the property is protruded, and the female part is the other side of the thin wood plate with many cracks formed on the lower surface. The female part has flexibility because the upper part of the resin sheet and the lower part of the other side of the resin sheet having flexibility are formed.

Therefore, according to the present invention, since the flexible male and female parts come into contact with each other at the actual joint, even if a slight unevenness occurs on the upper surface of the floor substrate, the male and female parts are in contact. Since the real part and the female part fit together well, there is no gap in the actual joint, the beautiful appearance of the floor finish is maintained, and even if a person walks on the top of the building floor plate and a load is applied, the male part is flexible. The floor noise is unlikely to occur because the female and the female part are in contact with each other.

According to the flooring material for construction according to the second aspect of the present invention, the thin wood plate is provided with flexibility by a large number of cracks, the fiber direction is set to the short side direction, and the thin wood plate is adhered to the upper surface of the thin wood plate. Since the fiber direction of the veneer is set to the long side direction, both fiber directions intersect, so the wood thin plate is given flexibility without falling apart, and the lower surface of the wood thin plate is given flexibility. Since the resin sheet is adhered, the building flooring material has sufficient flexibility. For this reason, building flooring can be reliably installed simply by laying it on the floor base without special bonding with an adhesive,
The building flooring material according to the present invention has extremely good workability.

Further, since a large number of cracks are formed in the thin wooden board, the stretching force generated in the thin wooden board when the thin wooden board absorbs or releases moisture is hardly transmitted to the inside of the thin wooden board. The stress caused by the above is alleviated, so that the thin wood plate is unlikely to be warped or twisted.

Further, since the thin wood plate and the veneer are adhered so that their fiber directions are crossed with each other, the veneer does not crack even though many cracks are formed in the thin wood plate. A good floor finish can be maintained.

Further, since a thin wood plate having a large number of cracks is interposed between the veneer plate and the resin sheet, it is strong against the floor load applied to the upper surface of the building floor material and has good durability.

According to the flooring material for construction according to the third aspect of the invention, the rigidity of the veneer is small because the thickness of the veneer is set to be less than half the thickness of the thin wood plate, so that the flooring for construction is Is even more flexible.

According to the flooring material for construction according to the fourth aspect of the invention, the specific gravity of the resin sheet is set to 1.5 times or more of the specific gravity of the thin wood plate. Because of the flexibility, the familiarity with the floor substrate is further improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a building flooring according to one embodiment of the present invention.

FIG. 2 is a perspective view showing a method for manufacturing the building floor material.

FIG. 3 is a perspective view showing a method for manufacturing the building floor material.

FIG. 4 is a sectional view of a conventional building floor material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Wood thin plate 12 Veneer plate 18 Resin sheet 22 Male part 24 Female part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E04F 15/04

Claims (4)

(57) [Claims] 1. A rectangular architectural flooring comprising a thin wood board, a veneer attached to an upper surface of the thin wood board, and a flexible resin sheet attached to a lower face of the thin wood board. There is provided on one side of the long side, a male part protruding the lower part of one side of the thin wood plate and the upper part of the resin sheet, and on the other side of the long side, A female part having a shape corresponding to the male part is formed by forming a gap between the two parts except for the upper part of the other side part of the wood thin plate and the lower part of the other side part of the resin sheet. A large number of cracks are formed on the upper surface of the lower portion of one side of the thin wooden plate constituting the male part and the lower surface of the upper part of the other side of the thin wooden plate constituting the female part. A flooring material for building, characterized by that. 2. The thin wood sheet is provided with flexibility by a number of cracks formed on at least one of its upper and lower surfaces, with its fiber direction set to be in a short side direction, 2. The flooring material for building according to claim 1, wherein the veneer has a fiber direction set to a long side direction. 3. 3. The building flooring according to claim 1, wherein the thickness of the veneer is set to be not more than half the thickness of the thin wood board. 4. The flooring material according to claim 1, wherein the specific gravity of the resin sheet is set to be at least 1.5 times the specific gravity of the thin wood board. .