JP3068374B2 - Substrates for flooring and 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 floor material used for floor finishing and a floor substrate for manufacturing the floor material.

[0002]

2. Description of the Related Art A floor material to be laid and laid on a floor base made of particle board, plywood, or the like basically has a long plate-like substrate with a surface material attached to an upper surface thereof. A gross portion is formed on two matching sides, and a female ridge portion corresponding to the gross portion is formed on the remaining two sides.

[0003] In the construction of such flooring, the flooring is adhered to the flooring with an adhesive, and a nail is driven into a gross portion located on the side of the substrate to fix the flooring to the flooring. It is customary to use a combination of glue nails. Therefore, the flooring substrate is required to have a property capable of nailing so that cracking, chipping, and the like do not occur due to nailing, and as such a property,
Those made of high-grade rawan plywood are generally known.

[0004]

However, due to the recent depletion of natural timber resources and social demands for nature protection, the unnecessary consumption of timber, especially high-grade timber such as high-quality lauan timber, is limited. In the field of timber for construction, there is a strong demand in the field of timber for construction to provide a substrate for flooring material by using a substitute for rawan, that is, to save so-called rawan.

[0005] As a means of saving rawan, for example, it is conceivable to form a flooring substrate with a reconstituted material such as a particle board or a medium fiberboard. There are drawbacks, such as damage to the gross part due to nailing, or the inability to hold the nailed in sufficiently, so that it is not possible to reliably fix it by nailing and it has not yet been put to practical use. .

A first object of the present invention has been made based on the above-mentioned viewpoint, and manufactures a flooring material capable of reliably performing nailing fixation during construction while dealing with depletion of natural resources. It is to provide a possible flooring substrate.

It is a second object of the present invention to provide a floor material having a substrate as a main part capable of achieving the first object.

[0008]

To achieve the above first object, according to an aspect of, the substrate for flooring first invention, the substrate body,
Particle board, medium fiber board, wafer board,
Reentrant strand board and hard board
A plate-shaped main component made of reconstructed material selected from the
Nail attached at least on both sides in the longitudinal direction
Of the substrate body
Concealing aesthetic defects on the upper surface of the substrate body over the region
The top sheet material is attached for
Tensile strength of 39.2N per 15mm width over the entire lower surface
(4kgf) or more of tensile strength lower sheet material
It is intended to be attached .

In the substrate according to the first aspect of the present invention, the end material is:
Not made of plywood or veneer laminate (LVL)
It is preferable to employ the one that is used.

[0010] On the other hand, in order to achieve the second object, the flooring material of the second invention of the present application is provided on the flooring substrate of the first invention.
It is composed of a composite material with a surface cosmetic material attached to the surface
And two adjacent sides of the four sides of the composite material
A ridge is formed and the remaining two sides
The gist of the invention is that a corresponding female notch is formed .

[0011]

SUMMARY OF substrate for flooring first invention is both sides of the plate-shaped main structure material, in which an end member consisting of nail holdable material is configured to have a stuck by substrate body is there.

For this reason, in a flooring material manufactured so as to form a gross portion on the end material of the substrate,
Since the nail is driven into the knurled portion formed of the end material capable of holding the nail, the nailing can be reliably performed. Furthermore , since reconstructed materials such as PB are used as the main constituent materials, reduction of high-grade timber should be achieved.
Can be.

Further, since a top sheet material is adhered to the upper surface of the substrate body as a floor material substrate, even if a thin surface decorative material such as a wooden veneer is directly adhered to the upper surface of the substrate. The aesthetic defect on the upper surface of the substrate body is concealed by the upper sheet material. Further, since the top sheet material is interposed between the substrate body and the surface decorative material , even if both elongate at a different rate due to moisture absorption or the like, the top sheet material acts as a buffer between them.

Further, as a substrate for flooring, stuck to the lower sheet material having a predetermined tensile strength on the lower surface of the substrate main body Tei
Because, by its lower sheet material, harmful valley warpage to the substrate or flooring products can be prevented from occurring.

[0015] hand, flooring the second aspect of the invention, the substrate that is the main part, since they are to have a structure similar to that of the substrate of the first invention, in major part, the First
The same function as that of the invention is achieved.

[0016]

FIG. 1 shows a floor substrate (B) according to a first embodiment of the present invention.
Cut a part of the flooring (F1), which is the main part of 1)
1 is a perspective view schematically showing a chipped portion, and FIG. 2 is a cross-sectional view taken along a line II-II of FIG.
FIG . In these drawings and the following drawings, dimensions in the thickness direction are shown larger than actual ones in order to facilitate understanding of the invention.

As shown in FIGS. 1 and 2 , this floor material (F
1) is composed of a composite material in which a surface decorative material (15a) is adhered to the upper surface of the substrate (B1), and two adjacent sides of the surrounding four sides of the composite material have knurls (13). Are formed, and on the remaining two sides, a female part (14) corresponding to the male part (13) is formed.

The substrate (B1) is a plate-shaped main component (11).
A substrate body (10) to which an end material (12) is adhered along both sides and one end of the substrate body (1).
When the upper surface sheet material (16) is attached to the entire upper surface of 0)
In both cases , the lower surface sheet material (17) is adhered to the entire lower surface .

The main constituent materials (11) include particle board (PB), medium fiber board (MDF), wafer board (WB), and oriented strand board (OS).
B) Use a reconstructed material such as a hard board (HB)
There is a need.

The thickness of the main component (11) is preferably set to 5 mm or more, and those having a thickness of 6 mm to 12 mm can be suitably used. In addition, the main component (11) may be provided with a reinforcing material as needed to increase the strength.

The end material (12) can be used as long as it is made of a material capable of holding nails, and among them, those having higher mechanical strength than the main constituent material (11) are preferably used. be able to. Specifically, it is preferable to use a material made of a woody material such as plywood, a laminated material, a veneer laminated material (LVL), a solid material, or a material made of a resin material such as synthetic wood, synthetic rubber, or rigid foam. However, the material is not limited.

In the case where the end material (12) is made of plywood, the number of plies, lamination direction and fiber direction are not particularly limited, but the plywood is formed of four plies or more and the lamination direction is the thickness direction. Further, it is preferable to use a plywood in which the veneers are arranged in the fiber direction in the length direction of the flooring material, in which the veneers have half or more of the number of plies.

The end material (12) can be of the same thickness as the main component (11), and if the thickness is small, the strength of the buckle (13) is low. There is fear. Furthermore, the width dimension of the offcuts (12) is 10 mm to 50 mm.
mm, and particularly preferably 15 mm to 25 mm.

The method of joining the main constituent material of the end member (12) (11) is not limited to the butt joint method shown in FIGS. 1 and 2, for example scarf joint system shown in FIG. 3 (a), FIG. ( Phase joint method shown in b), FIG.
(D), a real joint method shown in FIG. (E), a real-phase joint method shown in (f), a V-joint method shown in (g), and the like. The method can be suitably used. The bonding method shown in FIG. 3 has a larger bonding area than the butt joint method shown in FIGS . 1 and 2 , so that high bonding strength can be obtained.

In the present invention, a high- strength end piece (12) is adhered along both sides of the main component (11).
And for that, there is the effect of suppressing the warpage in the longitudinal direction, Ru it is possible to prevent the harmful warpage occurs in the substrate or flooring products.

For reference, in experiments conducted by the present applicant, floor materials in which scrap materials are adhered to both sides by a butt joint method may be longer in some cases than when floor materials are not adhered. A measurement result that warpage of 3 mm or more is reduced per 1200 mm is obtained.

The main component (11) and the remnant (12)
They may be joined in the length direction or the width direction.
The joining method is not particularly limited, but as described above, a butt joint method, a scarf joint method, a phase joint method, a finger joint method, a phase joint actual peel joint method, a V-joint method, and the like. Can be suitably used,
An adhesive may or may not be used for the joint.

As the upper sheet material (16), the upper surface of the substrate is used.
Paste a thin (about 0.3mm) surface decorative material (15a)
No aesthetic defects appear on the top surface of the board when attached
Anything can be used
You.

As the lower sheet material (17), a substrate (B)
1) or the occurrence of harmful warpage in the floor material (F1)
It is made of a material having tensile strength enough to prevent
If the tensile strength is 1 width,
59.2mm (4kgf) or more per 5mm
Must be used, preferably 58.8 ( 6
It is preferable to use a material made of a material of kgf) or more.

The sheet materials (16) and (17) are preferably used.
Specific examples of suitable materials include paper, nonwoven fabric, woven fabric, and wood.
Veneer, resin impregnated paper, vulcanized fiber paper,
Synthetic resin sheet or film, synthetic resin foam sheet
And other sheet materials, and sheet materials combining these
There are things.

In this embodiment, the upper sheet material (1
6) and the lower sheet material (17) weighing 115 g
/ M ² , a 142 μm thick polyethylene sheet is weighed
75g / m ² , 70μm thick sandwiched between two kraft papers
Or a two-layer sheet
Molten polyethylene, molten polypropylene, etc. between raft paper
Is used and is laminated into three layers.
You.

As the surface decorative material (15a), known materials such as wood veneer, pattern printing paper, and pattern vinyl chloride can be used.

[0033] In the present embodiment, since the bonded surface decorative material and (15a) through the surface substrate, aesthetic defects of the substrate main body upper surface is concealed by the surface substrate,
Since there is no danger of appearing on the flooring product surface, a thin surface decorative material can be used.

The floor material (F1) having such a structure is formed by attaching a surface decorative material (15a) to the substrate (B1) to form a composite material, and subjecting a peripheral portion of the composite material to a tongue processing. , Male ridge (13) and female ridge (14). In this case, the male part (1
3) is to be formed on the scrap (12).

When the end material (12) is made of a resin material, the tongue (1) is formed by molding such as extrusion.
3) If (14) is integrally formed in advance, it is not necessary to perform re-cutting.

On the other hand, when the floor material (F1) is applied, the floor material (F1) is adhered to the floor base using an adhesive, and the nail is attached to the base end portion of the side knurl (13). And fixed to the floor substrate. For the second and subsequent constructions, the male and female mating parts of the floor material to be applied next are fitted to the female members of the floor material already fixed to the floor substrate. It will be fixed.

According to the floor material (F1), a gross part (13) composed of a high strength and end material (12) capable of holding nails.
The nail is driven into the end material (12)
, And can be securely nailed.

Further, since a reconstituted material such as PB is used as the main constituent material (11) , it is possible to reduce the use of high-grade wood, and to cope with the depletion of natural wood resources. .

[0039] Also, in the flooring of this example (F1), since the bonded top sheet material (16) on the upper surface of the substrate main body (10), the upper surface of the substrate (B 1), Direct Even when a thin surface decorative material (15a) such as a wooden veneer is adhered, the aesthetic defect on the upper surface of the substrate body (10) is reduced by the upper sheet material (16).
It is not concealed and does not appear on the flooring product surface, and a good appearance can be secured. Furthermore, since the top sheet material (16) is interposed between the substrate body (10) and the thin surface decorative material (15a), the moisture contained in the surface decorative material sticking adhesive during the manufacturing process is reduced.
Since it is prevented from penetrating into the substrate body, it is possible to prevent the occurrence of problems such as expansion and warpage due to water absorption and moisture absorption, and in the finished flooring product, the substrate body (10) and the surface decorative material are absorbed by moisture. Even if (15a) elongates at a different rate, since the top sheet material (16) acts as a buffer between them, it is possible to prevent the surface decorative material (15a) from cracking.

Further, since the lower surface sheet material (17) having tensile strength is attached to the lower surface of the substrate body (10), harmful warpage is prevented from being generated by the sheet material (17). be able to.

Further, in this embodiment, over preparative material (1
6) Since (17) is adhered to the entire upper and lower surfaces of the substrate body (10), for example, the lower sheet material (17) can prevent moisture absorption from the lower surface side of the floor material into the interior of the floor material, and warp and surface material can be prevented. Adverse effects due to moisture absorption, such as contamination of the surface and occurrence of delamination, can be prevented. In addition, top sheet material (1
According to 6) as well, it is possible to prevent moisture absorption from the upper surface side of the flooring material into the inside, so that it is possible to further prevent the occurrence of warpage and the like.

Even if the sheet material itself is a hygroscopic material, the above-described effects can be obtained by applying a moisture-proof treatment such as attaching a moisture-proof sheet or applying a moisture-proof paint. /> can Ru.

Second Embodiment As shown in FIG. 4 , a floor material (F 2 ) according to a second embodiment of the present invention is provided on the entire upper and lower surfaces of the substrate body (10).
A substrate (B 2 ) on which sheet materials (16) and (17) each composed of a layer sheet are adhered, and a surface material (15) composed of decorative MDF or the like is adhered to the upper surface of the substrate (B6). It is.

The surface material (15) has a thickness of 2.7 mm.
Thickness on the top surface of the surface substrate (15b) made of MDF
Surface decoration material (15a) made of 0.3mm wood veneer
Uses the one that has been affixed (hereinafter referred to as “cosmetic MDF”)
Have been.

As the surface substrate (15b), various
Material can be used, and of course, Rawan plywood can also be used.
Although it is possible to use
In addition to reconstructed materials other than MDF, softwood plywood
The same material as the main component (11) above, such as low-grade wood such as
It is good to use what consists of a charge.

Also, paint is applied on the upper surface of the surface substrate (15b).
Paper or non-woven on the back of the coated material or the surface substrate (15b )
Attached sheet material made of cloth, wood veneer, etc.
Can be used as the surface material (15).

[0047] Other configurations are the same as the configuration of the upper you施例, it is possible to obtain the same effect.

[0048]

As is evident from the foregoing description, the substrate for flooring first invention, both sides of the plate-shaped main structure material, with the substrate body end material consisting of nail holdable material is adhered It is configured. For this reason, in flooring manufactured by forming a gross part on the end material of the substrate, at the time of construction,
Since the nail is driven into the knurled portion formed of the end material capable of holding the nail, the nailing can be reliably performed. In addition , as a main constituent material, a reconstructed material such as PB is used.
Since it is used, high-grade timber can be saved and natural wood resources can be depleted .

[0049] Also, since the adhered a top sheet material on the upper surface of the base plate main body, the even upper surface of the substrate directly, wood even when adhering a thin surface veneer of veneer and the like, the substrate main body upper surface aesthetic of Defects are not concealed by the top sheet material, and aesthetic defects do not appear on the flooring product surface, and a good aesthetic appearance can be secured. Further, since the top sheet material intervenes between the substrate body and the surface decorative material, even if both are stretched at different rates due to moisture absorption or the like, the top sheet material acts as a cushioning material between them, so The occurrence of cracks or the like in the material or the like can be prevented .

[0050] Further, since the stuck to the lower sheet material having a tensile properties to the lower surface of the board body, be prevented by the lower sheet material, from harmful warpage occurs in the substrate or flooring products There is an effect that can be .

On the other hand, the floor material of the second invention has the same structure as that of the substrate of the first invention. The same effect as that of the invention can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a floor material having a substrate as a main part according to a first embodiment of the present invention, with a part cut away .

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a cross-sectional view showing a substrate main body according to a modification of the present invention.

FIG. 4 is a sectional view showing a floor material according to a second embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Substrate main body 11 ... Main constituent material 12 ... End material 13 ... Male part 14 ... Female part 16 ... Upper surface sheet material 17 ... Lower surface sheet material B1 , B2 ... Substrate F1 , F2 ... Floor material

Claims (3)

(57) [Claims] 1. The substrate body is made of a particle board, medium quality
Fiber board, wafer board, oriented strand board
Reconstruction materials selected from the board and hardboard
Plate-shaped main component and at least both sides in the longitudinal direction
Consists of scraps made of material that can hold nails attached to the sides
And an upper surface portion of the substrate body over the entire upper surface of the substrate body.
Top sheet material is stuck to conceal the aesthetic defects of
At the same time, the tensile strength per 15 mm width is
Tensile lower surface made of 39.2N (4kgf) or more material
A floor material substrate to which a sheet material is adhered . 2. The plywood or laminated veneer material (L)
2. The flooring substrate according to claim 1, wherein the substrate is constituted by VL) . 3. The floor material substrate according to claim 1 or 2.
It is composed of a composite material with a surface cosmetic material attached to the surface
And two adjacent sides of the four sides of the composite material
A ridge is formed and the remaining two sides
A floor characterized by a corresponding female notch
Wood .