JP2605530Y2 - Composite decorative 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 composite decorative flooring used for floor finishing.

[0002]

2. Description of the Related Art Due to the recent depletion of natural timber resources and social demands for nature protection, the consumption of timber, particularly high-grade timber such as high-grade lauan wood, tends to be limited. Also in the field of wood, there is a strong demand for providing flooring materials by using rawan alternative materials, that is, saving so-called rawan.

[0003] As a means of saving labor, for example, Japanese Utility Model
Japanese Patent Application Laid-Open No. 3-76142 discloses a floor material in which spacer members are attached to lower portions of both side edges of a surface material, and a foreign material is arranged between the spacer members.

[0004] This floor material is made of a lightweight material such as styrene foam or a Lawan substitute material such as a honeycomb core, particle board or fiber board as a foreign material.
We are trying to save labor.

[0005]

However, in the above-mentioned flooring material, when a lightweight material such as styrene foam is used as a foreign material, a thick and high-strength material is used as a plywood of a surface material in order to prevent a decrease in strength. You need to use In other words, a large amount of high-quality rawan plywood or the like must be used as a surface material, which may not only meet the demand for saving rawan but also increase the cost.

Further, in the case of using a high-strength particle board or the like as the foreign material, the plywood of the surface material can be finished thinly, and it is possible to reduce the number of raw materials.
Swelling between plywood and particle board due to moisture absorption and release,
Due to the difference in shrinkage, the flooring product warps. In particular, in such a configuration, a valley warpage that is harmful during construction often occurs when the center portion is depressed in the floor material width direction, and at present, it has not yet been put to practical use.

The present invention solves the above-mentioned problems of the prior art, can prevent the occurrence of harmful valley warping in the width direction of the flooring material, reduces the use of high-grade timber, and addresses the depletion of natural timber resources. It is another object of the present invention to provide a composite decorative floor material that can be expected to reduce costs.

[0008]

Means for Solving the Problems The first and second inventions of the present application have been made to achieve the above objects, respectively. First, a composite decorative flooring material of the first invention is a plate-like core material. A composite material in which a surface base material and a surface decorative material are adhered on the upper surface of the base plate on which the scraps are adhered along at least both side edges, and a floor material is joined to a peripheral portion of the composite material. A composite decorative flooring material in which a part is formed, wherein the core material is 3
It is composed of plywood of ply or more, and among the laminated veneers constituting the plywood, veneers of half or more of the number of plies are arranged with the fiber direction facing the floor material width direction, and the end material is more than the core material The surface substrate is selected from reconstituted materials such as a medium fiber board, a particle board, a hard board, a wafer board, and an oriented strand board. The gist of the invention is that it is composed of one or more kinds.

In the first invention, the core material is:
It is preferable that the lowermost veneer is arranged with the fiber direction oriented in the floor material width direction.

The core is preferably made of softwood plywood.

On the other hand, in the composite decorative flooring material of the second invention, a surface base material and a surface decorative material are adhered to the upper surface of a base plate on which scraps are adhered along at least both side edges of a plate-shaped core material. A composite decorative flooring comprising a composite material, wherein a floor material joint is formed around a periphery of the composite material.
Is made of a plywood of three or more plies, the end material is higher in mechanical strength than the core material, and is made of a material capable of holding nails, and the surface base material is a medium fiberboard, a particle board. A hard board, a wafer board, is constituted by one or more kinds selected from reconstituted materials such as an oriented strand board, and in a region where at least the core material is arranged on the lower surface side of the base plate, The gist of the present invention is that a backing material having tensile strength is attached.

In the second invention, it is preferable that the backing material is made of a moisture-proof material and is adhered to the entire lower surface side of the base plate.

[0013]

In the composite decorative flooring material of the first invention, the core material is made of plywood of 3 ply or more, and among the laminated veneers constituting the plywood, the veneer of more than half the number of plies is oriented in the fiber direction. It is arranged toward the floor material width direction. With this configuration, the elongation of the core material in the width direction due to moisture absorption and desorption is suppressed, so that even if the surface material shrinks, valley warpage does not occur in the width direction. In this case, by arranging the fiber direction of the veneer of the lowermost layer of the core material in the width direction, there is an advantage that occurrence of valley warpage can be effectively prevented.

Further, by using a reconstructed material as a surface base material and using softwood plywood or the like made of low-grade wood as a core material, the use of high-grade wood such as high-quality lauan wood is limited to only offcuts. As a result, the quality of timber is reduced, and natural wood resources can be depleted. Further, the cost can be reduced by selecting a material such as a surface base material.

[0015] Since the joints of the floor material such as the gross part are formed as scraps made of a material that can hold nails with high strength, the nails that are driven into the gyrus during the construction of the floor material are formed by the scraps. It is held firmly, and the floor material can be securely fixed by nailing.

In the composite decorative flooring material of the second invention, since a backing material having tensile strength is attached to the lower surface side of the base plate, the backing material can be used in any of the width direction and the length direction of the flooring material. In this case, harmful valley warpage can be prevented from occurring.

Further, since valley warpage can be prevented by the backing material, it is not necessary to prevent valley warpage at the core material as in the first invention, and the structure and material of the core material are limited. Eliminates the need. Thus, one layer, savings high quality wood can be achieved.

In the second invention, when a backing material made of a moisture-proof material is adhered to the entire lower surface of the base plate, it is possible to prevent moisture absorption from the lower surface side of the floor material into the interior of the floor material, and to prevent valley warpage and surface decoration. There is an advantage that adverse effects due to moisture absorption such as contamination of the material and occurrence of delamination can be prevented.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS <First Embodiment> FIG. 1 shows a composite decorative flooring (F) according to a first embodiment of the present invention.
1) is a partially cutaway perspective view, and FIG. 2 is a sectional view taken along line II-II in FIG. In these drawings and the following drawings, in order to facilitate understanding of the present invention, dimensions in the thickness direction are shown larger than actual ones.

As shown in FIGS. 1 and 2, the floor material (F
1) is an end material (2) along both side edges of the plate-shaped core material (1).
A surface substrate (4) was adhered to the upper surface of the base plate (3) to which (2) was adhered, and a surface decorative material (5) was further adhered to the upper surface of the substrate (4). It comprises a composite material, and a joining knurl (6) is formed on two adjacent sides of the four sides around the composite material, and the other two sides correspond to the knurl (6). The female notch (7) is formed.

In this floor material (F1), a core material (1) made of plywood of three or more plies including even-ply plywood is used. As this plywood, even if it is made of low-grade wood having relatively low mechanical strength, it can be used. For example, softwood plywood or the like can be suitably used. From the viewpoint of saving high-grade lumber, it is not preferable to use high-grade lumber or other high-grade lumber. However, any wood species other than high-grade lauan wood can be used. For example, it is the same tropical hardwood as Lauan, but the material is hard and difficult to rotary cut, it has a rough surface, and is made of veneer with warp, wavy, etc., and is a tree species that is not usually used for plywood ( Plywood made of Other Timer can also be used.

Of the laminated veneers constituting the plywood serving as the core material (1), veneers having a half or more of the number of plies need to be arranged with the fiber direction in the width direction of the flooring material. It is preferable to arrange the veneers in the width direction with the fiber direction of the veneer. In addition,
The flooring material (F1) of the illustrated embodiment uses a 3-ply plywood as the core material (1), and includes a lower layer and a lower layer of three veneers (1a) (1b) (1c) constituting the plywood. The fibers of the upper veneers (1a) (1c) are arranged in the width direction of the floor material.

Further, the core material (1) having a thickness of 5 mm or more can be suitably used, and a material having a thickness of 6 to 12 mm is particularly preferable. If the thickness is less than 5 mm, it will be difficult to effectively prevent the occurrence of harmful valley warpage described later and to secure necessary strength and the like.

Note that the core material (1) may be joined in the floor material length direction. As the joining method, a joining method such as a butt joint, a scarf joint, a phased joint, and a finger joint can be used, and an adhesive may or may not be used at the joint.

The end member (2) needs to be made of a material having higher mechanical strength than the core member (1) and capable of holding nails. Specifically, plywood, laminated wood, veneer laminate (LV
L), a material made of a wooden board such as solid wood, or a material made of a resin material such as synthetic wood or synthetic rubber can be preferably used, but the material is not limited to the above.
When plywood or the like is used for the offcuts (2), the laminating direction is not particularly limited.

The end material (2) has a thickness equal to that of the core material (1).
Can be suitably used.

As the surface substrate (4), a reconstructed material obtained by compression molding wood fibers or wood chips using a resin adhesive is used. Specifically, a medium fiberboard (MDF), a particle board (PB), a hard board (HB), a wafer board (W
B), an oriented strand board (OSB) or the like can be used, and among them, MDF and PB can be preferably used.

As the surface substrate (4), it is not always necessary to use one composed of one kind of material, but it is also possible to use one composed of two or more kinds of materials.

If necessary, a sheet material such as paper, nonwoven fabric, cloth or the like may be attached to the front surface, the back surface, or both surfaces of the surface substrate (4), or may be subjected to a resin impregnation treatment or a resin application treatment. May be applied. For example, as shown in FIG. 3, the sheet material (4a) having the above configuration may be attached to the lower surface side of the surface substrate (4).

As the surface decorative material (5), besides a wooden veneer, a known material such as a pattern printing paper or a patterned vinyl chloride can be used, but the decorative material can be formed by a known coating treatment. it can.

The thickness of the surface material composed of the surface base material (4) and the surface decorative material (5) is preferably set to be thinner than the above-mentioned end material (2), specifically, 2 mm to 7 mm.
, Especially 3 mm to 5.5 mm.

The method of producing the composite decorative flooring material (F1) having this configuration is not particularly limited. However, to give an example, firstly, first, an edge material (1) is formed along both side edges of the core material (1). 2)
(2) is adhered to form a base plate (3), and then a surface base material (4) is adhered to the upper surface of the base plate (3), and a surface decorative material (5) is further adhered to the upper surface. To form a composite. Then, the composite material is subjected to tongue processing to form a male part (6) and a female part (7).

The construction using the floor material (F1) is performed on a floor base made of, for example, plywood, particle board, or the like.
This is performed by attaching the floor material (F1) using an adhesive, driving a nail into the base end portion of the gross portion (6) so as to penetrate it, and fixing the nail to the floor substrate. In addition, 2
For subsequent work, fit the tongue of the floor material to be applied next male and female to the tongue of the floor material already fixed to the floor base, and fix it to the floor base in the same manner as above Becomes

According to the floor material (F1), of the three veneers (1a), (1b), and (1c) constituting the plywood of the core material (1), the lower and upper veneers (1a) ( Since the fiber direction of 1c) is arranged in the width direction of the floor material, the elongation in the width direction of the core material (1) due to moisture absorption and desorption is suppressed. For this reason,
Even if the surface material shrinks, no harmful valley warpage occurs in the width direction. Therefore, at the time of floor material construction, the entire lower surface both sides of the floor material (F1) can be reliably placed on the floor foundation, and the floor material construction can be performed without any trouble.

Further, since the gross part (6) is formed of a high-strength end piece (2) that can be nailed, the nail that has been driven is strongly held by the end piece (2) and nailed. The floor material can be securely fixed by the method.

At the longitudinal end of the floor material (F1) in the present embodiment, no high-strength scrap material is arranged, and the male material formed on the core material (1) such as softwood plywood is provided. The nail is driven into the notch (6), and the appropriateness of the nail driving becomes a problem. However, as shown in FIG. 4, the knurled part (6) is constituted by a veneer (1b) located in the intermediate layer of the core material (1), and the veneer (1b) of the intermediate layer is oriented in the fiber direction. Are oriented in the length direction of the flooring material, that is, in the direction in which the gross portion (6) protrudes. Therefore, chipping or the like does not occur in the gross portion (6) due to nailing, and nail driving can be performed without any trouble.

Further, by using a reconstructed material as the surface substrate (4) and using a softwood plywood or the like made of low-grade wood, for example, as the core material (1), high-grade wood such as high-quality lauan wood is used. Since the use of wood is limited to only the offcuts (2), it is possible to reduce the use of high-grade wood and to cope with the depletion of natural wood resources.

<Second Embodiment> FIG. 5 shows a composite decorative flooring material (F) according to a second embodiment of the present invention.
It is sectional drawing which shows 2). As shown in the figure, this floor material (F2) is a sheet-like backing material having tensile properties over the entire lower surface side of the floor material having the same configuration as the floor material (F1) of the first embodiment. (8) is affixed.

The backing material (8) has a tensile strength of width 15
Materials composed of a material of 39.2 N (4 kgf) or more per mm can be suitably used, and more preferably 5
It is preferable to use a material made of a material of 8.8 N (6 kgf) or more.

Specifically, paper, nonwoven fabric, cloth, wood veneer,
A resin impregnated paper, vulcanized fiber paper, a synthetic resin sheet or film, or a combination thereof can be used.

The other structure is the same as the structure of the floor material (F1) of the first embodiment.

The method of manufacturing the floor material (F2) is as follows.
Manufacturing is performed in the same procedure as in 1), and finally, a backing material (8) is attached to form a composite material, and then, a tongue processing is performed. However, the manufacturing method is not limited to this.

In this flooring material (F2), the backing material (8) acts as a tensile material, and even if shrinkage occurs not only on the surface material, but also on the base plate, etc., either in the width direction of the flooring material or in the length direction. Harmful valley warpage can be prevented from occurring in the direction of.

Furthermore, since the occurrence of valley warpage can be prevented by the backing material (8), it is not necessary to prevent the occurrence of valley warpage in the core material (1) as in the first embodiment, and the core is not required. There is no need to limit the structure and material of the material (1). For this reason, good Ri further, it is possible to deal with the depletion of natural wood.

When a moisture-proof material such as a water-impermeable material is used as the backing material (8), moisture absorption into the floor material (F2) can be prevented even if dew condensation or the like occurs on the floor substrate. This can prevent adverse effects due to moisture absorption, such as warpage of the valley, contamination of the surface decorative material, and occurrence of delamination.

Even if the backing material (8) itself is a hygroscopic material, if the material is subjected to a damp-proof treatment such as sticking a damp-proof sheet or the like, or applying a damp-proof paint, the above-mentioned properties can be obtained. Similar effects can be obtained.

<Third Embodiment> FIG. 6 shows a composite decorative floor material (F) according to a third embodiment of the present invention.
It is sectional drawing which shows 3). As shown in the figure, in the floor material (F3), the point that the backing material (9) is adhered to the area on the lower surface side of the floor material where the core material (1) is arranged is the second embodiment. This is different from the example floor material (F2).

Other configurations are the same as those of the above embodiments.

In this floor member (F3), similarly to the floor member (F2) of the second embodiment, harmful valley warpage can be prevented by the tensile action of the backing member (9). It is possible to further cope with the depletion of natural wood resources.

The method for producing the floor material (F3) is not limited, but for example, a backing material (9) is attached to the lower surface side of the core material (1), and thereafter, As in the embodiment, there is a manufacturing method in which the end material (2), the surface base material (4), and the surface decorative material (5) are adhered, and then tongue processing is performed.

Incidentally, in each of the above embodiments, various design changes are possible.

For example, a groove for preventing warpage may be formed on the back side of the front substrate (4), or a reinforcing member may be interposed at an appropriate position inside the floor material.

[0053]

According to the composite decorative flooring material of the first invention, the core material is made of plywood having three or more plies, and of the laminated veneers constituting the plywood, the veneers having more than half the number of plies are used. Since the fiber direction is arranged in the width direction of the floor material, expansion and contraction of the core material in the width direction due to moisture absorption and desorption is suppressed, so even if the surface material shrinks, harmful valley warpage in the width direction. Does not occur. In this case, by arranging the fiber direction of the veneer of the lowermost layer of the core material in the width direction, there is an advantage that occurrence of valley warpage can be effectively prevented.

Further, by using a reconstructed material as the surface base material and using a softwood plywood or the like made of low-grade wood as the core material, it is possible to use only high-quality wood such as high-quality lauan wood only with the scrap material. Therefore, high-grade timber can be saved, and natural wood resources can be depleted. Further, the cost can be reduced by selecting a material such as a surface base material.

Since the floor material joint such as the gross part is formed of a high-strength nailed material made of a material that can be nailed, the nail that is driven into the gross part at the time of floor material construction does not depend on the small material. It is held firmly, and the floor material can be securely fixed by nailing.

According to the composite decorative flooring material of the second invention, a backing material having tensile strength is attached to the lower surface side of the base plate, so that the backing material can be used in either the width direction or the length direction of the flooring material. Harmful valley warpage can be prevented in the direction.

The backing material prevents valley warpage.
Since it can be stopped, as in the first invention above, the trough
It is no longer necessary to prevent warpage, and the structure and core
And there is no need to limit materials. Therefore,one
And depletion of natural timber resources.
The cost can be further reduced by selecting the material.

In the second invention, when a backing material made of a moisture-proof material is adhered to the entire lower surface of the base plate, it is possible to prevent moisture absorption from the lower surface side of the floor material into the interior of the floor material, and to prevent valley warpage and surface damage. There is an advantage that adverse effects due to moisture absorption, such as contamination of the cosmetic material and occurrence of delamination, can be prevented.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a composite decorative flooring according to a first embodiment of the present invention.

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

FIG. 3 is a cross-sectional view showing a modification of the first embodiment.

FIG. 4 is a sectional view corresponding to a section taken along line III-III of FIG. 1;

FIG. 5 is a sectional view showing a composite decorative flooring material according to a second embodiment of the present invention.

FIG. 6 is a sectional view showing a composite decorative flooring according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Core material 1a, 1b, 1c ... Single plate 2 ... End material 3 ... Base plate 4 ... Surface base material 5 ... Surface decorative material 6, 7 ... Tones (floor joint part) 8, 9 ... Backing material F1 , F2, F3 ... composite decorative flooring

Claims (5)

(57) [Scope of request for utility model registration] 1. A composite material having a surface base material and a surface decorative material adhered to an upper surface of a base plate on which an end material is adhered along at least both side edges of a plate-shaped core material. A composite decorative flooring material in which a floor material joint is formed in a peripheral portion of the composite material, wherein the core material is made of three or more plies of plywood, and a half of the number of plies in a laminated veneer constituting the plywood. The above veneer is arranged with the fiber direction oriented in the floor material width direction, and the end material is made of a material having higher mechanical strength than the core material and capable of holding nails, and the surface base material is Composite flooring material comprising one or more materials selected from reconstituting materials such as medium-grade fiber board, particle board, hard board, wafer board, and oriented strand board. . 2. The composite decorative flooring material according to claim 1, wherein the core material is such that the lowermost veneer is arranged with the fiber direction in the width direction of the flooring material. 3. The composite decorative flooring material according to claim 1, wherein the core material is made of softwood plywood. 4. A composite material in which a surface base material and a surface decorative material are adhered to an upper surface of a base plate on which scraps are adhered along at least both side edges of the plate-shaped core material. A composite decorative flooring material in which a floor material joint is formed in a peripheral portion of the composite material, wherein the core material is made of plywood of three or more plies, and the end material has a higher mechanical strength than the core material. And the surface base material is one or two selected from reconstituted materials such as a medium fiber board, a particle board, a hard board, a wafer board, and an oriented strand board. A composite decorative flooring material constituted by the above, wherein a backing material having tensile strength is attached to at least a region on the lower surface side of the base plate where the core material is arranged. 5. The composite decorative flooring material according to claim 4, wherein the backing material is made of a moisture-proof material, and is adhered to the entire lower surface side of the base plate .