JPH1148212A - Bamboo glued laminated floor material and floor structure using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain naturally an effect with stepping on bamboo since an effective spot on the sole of a foot is pushed only by walking on a bamboo glued laminated floor by a method wherein a plurality of plates of bamboo material to which mildew proofing treatment and low temperature drying by removing moisture are applied, are arranged across, a plurality of plates of another bamboo materials are arranged in a width direction thereof thereon, and a joint between the bamboo materials is shifted across from the joint between the bamboo materials of the lower layer to laminate two or more layers, a surface of the bamboo materials of the uppermost layer is formed in a circular arcuated state, and joints and lamination piled parts of those bamboo materials are bonded with adhesives. SOLUTION: A bamboo glued laminated floor material is composed of a square laminate 30 wherein bamboo such as mosochiku or the like is across sawn and longitudinally sawn to form a square plate shape of several mm thickness and several cm width, bamboo material 1 to which mildew proofing treatment and low temperature drying by removing moisture are applied are arranged across by a plurality of plates, a plurality of plates of another bamboo material 1 are arranged in a width direction thereof thereon, a joint 2 between the bamboo materials 1 is shifted across from the joint 2 between the bamboo materials of the lower layer to laminate two or more layers, a surface of the bamboo material 1 of the uppermost layer is formed in a circular arcuated shape, and joints 2 and lamination piled up part 3 of those bamboo materials 1 are bonded with an adhesive. The floor structure is arranged so that arranged direction of two or more plates of the bamboo glued laminated floor material and the bamboo material of the uppermost layer become vertical-horizontal checkers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bamboo laminated flooring made of a combination of bamboo cut out from bamboo such as Moso bamboo and bamboo, and is used as a flooring material for buildings such as general houses, public houses and sports facilities. The present invention relates to a bamboo laminated flooring material and a floor structure using the same.

[0002]

2. Description of the Related Art Conventionally, there are various types of building materials, particularly floor materials, such as natural wood and plywood. Plywood has various shapes and structures, and there is also one using bamboo. As can be seen from the fact that bamboo has been used as a ruler since ancient times, it has low elasticity, excellent durability and toughness, and a high deodorizing effect.

Conventionally, bamboo materials A obtained by horizontally and vertically grinding Moso bamboo to form a plate having a thickness of several mm, a width of several cm, and a length of several 10 cm to 1 m are arranged vertically as shown in FIG. There is a bamboo laminate B in which bamboo materials A to be bonded are pressure-bonded to each other using an adhesive. Since the bamboo laminate B has a bamboo pattern on the surface C, it has the appearance and texture unique to bamboo, has a good appearance, has the elasticity unique to bamboo, is hard to bend or crack, and has little deflection. The advantage is that the vibration width is small and the moisture resistance is excellent.

Conventionally, as shown in FIG. 10, there is also a bamboo plywood E in which the above-mentioned bamboo material A is superimposed and adhered on a plywood D such as a plywood. This also has a unique look and texture of bamboo because the bamboo pattern appears on the surface.

[0005]

The bamboo laminate B shown in FIG.
Since all of a large number of bamboo materials A are arranged in the same vertical direction, the adhesive strength against the vertical force is weak even if they are bonded with an adhesive. Therefore, when this bamboo laminate B is used as a flooring material, the seam F of the bamboo material A is applied by the vertical force applied to the floor.
Is easily peeled or distorted. In particular, when used on floors in gyms and other places where intense exercise is performed, intense vibrations are applied, so that the adhesive is more likely to be peeled off and distorted, making it difficult to walk, and in some cases, the bamboo projections coming out of the cracks There was a danger of sticking to the foot, which was also dangerous.

In FIG. 10, since the bamboo material A is bonded to a plywood (for example, plywood) D different from bamboo, the bonded bamboo material A and the plywood D have different expansion ratios, moisture absorption rates, and the like. For this reason, the adhesive may be peeled off or distorted with the passage of time.

[0007]

Accordingly, the present applicant has previously developed a bamboo laminated flooring material which solves the problems of the conventional flooring materials,
A patent application (Japanese Patent Application No. 7-197090) has already been filed.
The bamboo laminate flooring developed earlier by the applicant is shown in FIG.
As shown in (a) and (b), bamboo such as Moso bamboo is horizontally and vertically ground and formed into a square plate having a thickness of several mm and a width of several cm. After drying, a plurality of the bamboo materials a are arranged in the width direction of the bamboo materials a, and a plurality of the bamboo materials a which have been subjected to the antifungal treatment and low-temperature dehumidification and drying are arranged in the width direction thereof, and the seam b between the bamboo materials a is formed. A plurality of layers are laminated while being shifted laterally from the seam b between the bamboo materials a of the lower layer, and the bamboo material a of the uppermost layer is laminated so that the joint pattern d is on the surface,
The seam b and the laminated portion e are bonded with an adhesive to form a rectangular laminated plate f, and the outer peripheral surface g of any one of the laminated plates f is arranged in the direction of arrangement of the bamboo material a or longer than the outer peripheral surface g. A fitting protrusion h protruding outward in the direction is formed, and the fitting protrusion h of the other bamboo laminated floor material is depressed on the other outer peripheral surface g inward in the arrangement direction or the longitudinal direction of the bamboo material a with respect to the outer peripheral surface g. The fitting protrusion h and the fitting recess j are formed to have the same thickness as the bamboo material a, and a U is formed on the surface of the bamboo material a in the uppermost layer of the laminated board f.
It is made by applying V paint.

The bamboo laminated flooring, to which the present applicant has already applied for a patent, sufficiently solves the problems of the conventional flooring and has been well received in the market, so there is no particular problem.
The invention of the present application has been improved to further improve the function of the bamboo laminated floor material.

It is an object of the present invention to provide a unique appearance and texture of bamboo having a knot, and it is difficult for the bamboo to be distorted, stretched, peeled or cracked, resistant to humidity, and resistant to mold growth. It is an object of the present invention to provide a bamboo laminated flooring material in which the sole of the foot is pressed simply by walking on the floor and a bamboo stepping effect can be naturally obtained, and a floor structure using the same.

The first invention of the present application relates to a bamboo material such as Moso bamboo which is horizontally and vertically ground to form a square plate having a thickness of several mm and a width of several cm, and which has been subjected to a fungicide treatment and a low-temperature dehumidifying and drying process. A plurality of bamboo materials are arranged in the width direction, another bamboo material is arranged in the width direction, and the seam between the bamboo materials is shifted laterally from the seam between the lower bamboo materials. Are formed in a circular arc shape, and the seam of the bamboo material and the laminated superposed portion are bonded with an adhesive to form a square laminated plate.

According to a second invention of the present application, the bamboo material of the uppermost layer of the laminate according to the first aspect is arranged such that the joint pattern of the bamboo material is on the surface.

According to a third aspect of the present invention, there is provided a fitting which protrudes from any one side of the outer peripheral surface of the laminated plate according to claim 1 or 2 outwardly in the arrangement direction or longitudinal direction of the bamboo material from the outer peripheral surface. A mating portion is formed, and the other side of the outer peripheral surface is depressed inward in the arrangement direction or the longitudinal direction of the bamboo material with respect to the outer peripheral surface to form a fitting concave portion into which a fitting protrusion of another bamboo laminated floor material can be fitted. The fitting projection and the fitting recess are formed to have the same or substantially the same thickness as the bamboo material.

According to a fourth invention of the present application, the surface of the bamboo material on the uppermost layer of each of the laminated boards according to the first to third aspects is provided with a UV light.
It is painted.

According to a fifth invention of the present application, in each of the bamboo laminated floor materials according to the first to fourth aspects, the uppermost bamboo material is wider than the lower bamboo material.

According to a sixth invention of the present application, in each of the bamboo laminated flooring materials according to the first to fifth aspects, a groove which is one step shallower than both outer sides is formed on the bottom surface of the lowermost bamboo material in the width direction central portion. It is formed.

According to a seventh aspect of the present invention, in each of the bamboo laminated floor materials according to the first to sixth aspects, a sound absorbing material is attached to the back surface of the lowermost bamboo material.

According to an eighth invention of the present application, two or more bamboo laminated floor members according to claims 1 to 7 are arranged so that the arrangement direction of the uppermost bamboo material is a checkerboard pattern of vertical and horizontal directions. Things.

[0018]

FIG. 1 shows an embodiment of a bamboo laminated flooring material according to the present invention. The bamboo laminated flooring 10 is obtained by subjecting Moso bamboo to horizontal and vertical grinding and forming a bamboo 1 (FIG. 8b) having a thickness of several mm and a width of several cm to form a square plate, as described below, and then performing an antifungal treatment as described later. 1, two or more bamboo materials 1 are arranged in the width direction, and a seam 2 between the adjacent bamboo materials 1 is a seam 2 between the bamboo materials 1 in the lower layer.
The desired bamboo material 11 (FIG. 8c) is chamfered to form an arcuate surface, and the same number and width of the bamboo material 1 are applied. Line up in the direction. Also at this time, the seam 2 of the adjacent surface bamboo material 11 is shifted laterally from the seam 2 of the lower bamboo material 1 and the joint pattern 16 is arranged on the surface, and the seam 2 of the bamboo material 1 and the surface bamboo material 11 and the lamination thereof. A laminated plate 30 in which the uppermost layer is formed by an arcuate surface by bonding the overlapping portion 3 with an adhesive.
Are formed at predetermined sides of the outer peripheral surface 20 of the laminated plate 30 to form fitting projections 5 and fitting concave portions 6, and the uppermost layer of the laminated plate 30 is subjected to UV coating. In this embodiment, the dimensions of the bamboo material 1 and the surface bamboo material 11 when forming the laminated board 30, the number of the bamboo material 1 and the surface bamboo material 11 arranged in the width direction, and the number of layers can be arbitrarily selected. As an example, for example, the dimensions of the bamboo material 1 and the surface bamboo material 11 are several mm in thickness, several cm in width, several cm to several tens cm in length, and bamboo manufactured by combining the bamboo material 1 and the surface bamboo material 11. When the size of the laminated flooring material 10 is 15 mm, the bamboo material 1 is laminated in two or four layers, and the surface bamboo material 11 is further laminated thereon to form a square of about 20 cm to 30 cm in width and 7 to It may be 9cm long and about 30cm long. The plurality of bamboo materials 1 and surface bamboo materials 11 to be used may have the same size or different sizes.

The bamboo laminated flooring 10 of FIG. 1 has an outer peripheral surface 20 of the outer peripheral surface 20 of the laminate 30 on the side of the bamboo material 1 in the arrangement direction.
A fitting projection 5 projecting outward is formed, and a fitting recess 6 is formed on the opposite side so as to be recessed inward from the outer peripheral surface 20 so that the fitting projection 5 of another bamboo laminated flooring can be fitted therein. And then bamboo 1
A fitting recess 6 is also formed on one side in the longitudinal direction. The positions where the number of the fitting protrusions 5 and the fitting recesses 6 are formed are not limited to those shown in the drawings. For example, the fitting protrusions 5 are provided on two sides of the bamboo laminated flooring 10 and the fitting recesses are provided on the other two sides. 6 may be formed. The fitting projection 5 and the fitting recess 6 are formed by a slicing process described later.

The UV paint finish of the uppermost layer of the laminate 30 is as follows:
It is preferable to perform the polishing after polishing the surface of the uppermost surface bamboo material 11. For this UV coating, a UV paint such as an oil-modified one-pack type polyurethane resin paint or an oil-modified two-pack type polyurethane resin paint is used.

There are various methods of bonding the bamboo material 1 and the surface bamboo material 11 shown in FIG.
b) The bamboo materials 1 coated with the adhesive are adhered one by one while being arranged side by side, and the laminated superposed portions 3 are adhered one by one while the bamboo material 1 coated with the adhesive is stacked on the laminated superposed portions 3, There is also a method in which a surface bamboo material 11 coated with an adhesive is applied to the laminated superposed portion 3 and then stacked, and as another method, the bamboo materials 1 coated with an adhesive on the side surface 22 are arranged side by side, and The bamboo material 1 with the adhesive applied to the side surface 22 and the laminated superposed part 3 is arranged side by side, and the bamboo material 11 for the surface with the adhesive applied to the side surface 22 and the laminated superposed part 3 is arranged horizontally. There is a method of pressing and bonding the bamboo materials 11 for use together. In addition, the bamboo material 1 or the surface bamboo material 11 having an adhesive applied to the side surface 22 is arranged side by side, and the two are pressure-bonded in the arrangement direction to form one laminated plate 4 or the surface laminated plate 44. (FIGS. 3a and 3b), another laminated plate 4 coated with an adhesive on the back surface is laminated on the laminated plate 4, and a laminated plate 44 for the front surface coated with an adhesive on the rear surface is further laminated thereon. In this state, there is also a method in which the laminated plate 4 and the surface laminated plate 44 are adhered in the laminating direction by applying pressure vertically. In any case, there is a method in which high frequency heating is performed together with pressurization to accelerate drying of the adhesive, or simply high frequency heating is performed without pressurization.

In the bamboo laminated flooring 10 shown in FIG. 1, the thickness of the bamboo 1 at the center in the width direction of the lowermost bamboo 1 is made thinner than the thickness of the bamboo 1 on both sides thereof, and a concave groove 7 is formed on the bottom surface thereof. I have. By forming the concave groove 7, even if the floor on which the floor is laid is somewhat uneven, it is easy to lay horizontally, and after laying on the floor, it becomes a ventilation path, the air permeability is improved, and the bamboo material 1 is hardly moldy. Become.

The bamboo laminated flooring 10 has nail holes 2 as shown in FIG.
1 is formed. The nail holes 21 are used for driving nails to fix the bamboo laminated floor material 10 to the floor when the bamboo laminated floor material 10 is laid on the floor. The nail hole 21 is opened obliquely inward from the fitting protrusion 5 (FIG. 4B). The number and interval of the nail holes 21 depend on the length of the bamboo laminated flooring 10, but when the length of the bamboo laminated flooring 10 is 910 mm, it is preferable to form three at 290 mm intervals from the viewpoint of workability. It is also desirable from the viewpoint of the stability of fixing the bamboo laminated flooring 10. The nail hole 21 is for preventing the bamboo material 1 or the surface bamboo material 11 from breaking when the nail is driven. When nails are driven by an air gun, the bamboo material 1 or the bamboo material 11 for the surface does not break even if there is no nail hole 21, so the nail hole 21 is not necessarily required in this case. In addition, 1 in FIG.
6 is a bamboo joint pattern.

[0024]

Second Embodiment FIG. 2 shows another embodiment of the bamboo laminated flooring material according to the present invention. The bamboo laminated flooring 10 is also formed by combining the bamboo 1 and the surface bamboo 11, and the surface bamboo 11 disposed on the uppermost layer is made to be one wide,
Further, a sheet-shaped sound-absorbing material 8 is attached to the back surface of the bamboo material 1 at the lowermost layer. There are various types of the silencing material 8, but the silencing material 8 used in the present invention may be any commonly used silencing material. When this bamboo laminated flooring 10 is used for the flooring of the second floor, the sound is less likely to be heard downstairs.

[0025]

Third Embodiment FIG. 6 shows an example of an embodiment of a floor structure using the bamboo laminated flooring material 10 of the present invention. For this floor structure, for example, as shown in FIG. 5, a square bamboo laminated flooring 10 having a length and width of about 20 cm is used.
The bamboo fibers of the top surface bamboo material 11 of the top layer 0 are combined so that the fiber directions of the bamboo are vertical and horizontal, and are arranged in a checkered pattern as a whole.

[0026]

[Explanation of the method for producing the bamboo laminated flooring material of the present invention] There are various methods for producing the bamboo laminated flooring material of the present invention, and the following method is an example. Bamboo material 1 of the present invention and bamboo material 1 for surface
Various materials such as Moso bamboo, Shin bamboo, Go bamboo, pillar bamboo and the like are conceivable as the raw material of 1, but of these, Moso bamboo is desirable.
Also, among the Moso bamboos, young ones produced for 3 to 4 years have a high water content and are liable to warp. Further, since sugar remains, molds and insects may occur. Conversely, those that are too old have poor durability and toughness. Therefore, it is most desirable to use Moso bamboo that has been produced for 5 years. In the following, a description will be given of Moso bamboo as an example.

1. Horizontal grinding, vertical grinding For example, one Moso bamboo produced for 5 years (inner diameter 15cm, circumference 47)
cm, bamboo with a thickness of about 8 mm) is horizontally ground at intervals of about 1 m into several pieces (usually 3 to 4 pieces). 2. The bamboo that has been horizontally ground is vertically ground to a width of about 3.3 cm using a bamboo splitter. Thereby, a plurality of bamboo materials 1 (FIG. 8b) are formed. A part of the bamboo material 1 is taken out and chamfered to form an arcuate surface. As a result, a plurality of surface bamboo materials 11 (FIG. 8C) are formed. The bamboo material 1 and the surface bamboo material 11 are inspected and defective products are eliminated. 3. Bleaching, disinfection and mold control Bamboo has inherently the drawback of mold.
Therefore, the bamboo material 1 and the surface bamboo material 11 are bleached and sterilized, and a fungicide treatment is performed. In the bleaching, the bamboo material 1 and the surface bamboo material 11 described above are added to sodium hypochlorite solution at room temperature (30 ° C.
(40 ° C.) for 5 minutes. Bleaching can also be carried out by boiling in sodium hydrogen peroxide. At the same time as bleaching, it kills parasites and stops mold. Since the sodium hypochlorite solution is an alkaline solution exhibiting a strong oxidizing effect, the bamboo material 1 and the bamboo material 11 for the surface which have been pulled up therefrom are thoroughly washed with water and wiped off. After that, a sorting inspection is performed and the surface colors of the materials are made uniform. If sodium hydrogen peroxide is used for bleaching, the bleaching and oxidizing action will remain and bleaching will proceed excessively unless the residual hydrogen peroxide is sufficiently removed, or adverse effects may be exerted on subsequent processing. is there. Therefore, in order to prevent such adverse effects, the residual hydrogen peroxide is completely removed using a decomposing agent containing hydrogen peroxide decomposing enzyme (catalase) as a main component, which can completely remove the residual hydrogen peroxide in a short time. It is desirable. 4. Bamboo Dimension Selection Before the bamboo 1 and the surface bamboo 11 are dried, useless portions of the side surfaces and the surface are shaved off. Thereby, the width, thickness, and the like of the bamboo material 1 and the surface bamboo material 11 are determined. 5. Surface Polishing The surfaces of the bamboo material 1 and the surface bamboo material 11 formed as described above are polished. In the polishing, fine polishing is performed after rough polishing. This polishing need not always be performed. 6. Low temperature dehumidification drying The bamboo material 1 and the surface bamboo material 11 polished as described above are dried and finished by a low temperature dehumidification method. In this drying, the temperature is maintained at 90 ° C. to 100 ° C. by a dehumidifying method using a boiler in combination, and the bamboo material 1 and the surface bamboo material 11 are dried to a moisture content of 100% within 7 hours to 7 to 8%. In this case, the drying starts from the inside and spreads to the outside. Thereby, the bamboo material 1 and the surface bamboo material 11 can always maintain the water content at 7 to 8% even if they come into contact with water. After this finishing, the bamboo material 1 and the surface bamboo material 11 are inspected again. 7. Adhesion of bamboo materials to each other by bamboo peeling machine Adhesive is applied to the peripheral surface of bamboo material 1 dried as described above by an automatic sizing machine, and the desired number of bamboo materials 1 are arranged side by side. The bamboo material 1 is superimposed into two layers as shown in FIG. 1, and the surface bamboo material 11 with the adhesive applied to the bottom and side surfaces by an automatic sizing machine is arranged side by side, and then the 6-surface bamboo cutter Set the position within 20 minutes with pressure 9 kg / cm ²
Thus, the bamboo material 1 and the surface bamboo material 11 are bonded. This adhesive is easy to handle, water-based,
Excellent cold pressure adhesion, excellent high frequency characteristics, can be bonded in a short time, pH value is in the neutral range to prevent wood contamination, little bubbling after adding hardener, viscosity increase It is also desirable to use a material that satisfies the conditions such as being low and not containing formalin, which has a risk of adversely affecting the human body.Specifically, a modified vinyl resin as the main component and polyinocyanate as the curing agent are used. It is most preferable to use an aqueous polymer-isocyanate adhesive having a tensile strength of 10 kg / cm ² or more. In addition, it cannot be used at a tensile strength of 7 kg / cm ² or less. 8. Cold-Pressing The above-combined bamboo material 1 and surface bamboo material 11 are subjected to cold-pressing (cold pressing) while heating by high frequency.
The press is performed for 20 minutes at 10 kg / cm ² at 27 ° C. Thereafter, inspection and sorting of the adhesive strength are performed. It is necessary to perform hot pressing while spraying moisture in order to prevent the surface from burning, but it is not suitable because this moisture causes warpage later. 9. Rip-cutting process A desired side of the outer peripheral surface 20 of the laminated plate 30 bonded to the three layers as described above is subjected to the lip-cutting process by a pliers, and fitted to the outer peripheral surface 20 of the laminated plate 30 with the fitting projection 5. A combined recess 6 is formed. After that, inspection and sorting of the steps and joints of the laminate 30 are performed. 10. Polishing After the inspection and sorting, the surface of the laminated plate 30 is polished (coarse polished), and then the coated surface (fine polished). 11. After the polishing, a paint finish is performed. For this coating, an oil-modified one-pack type polyurethane resin paint (UV paint) is used. The processing color tone in this case can be a desired color, but it is desirable to use white or brown in order to make use of the color tone of bamboo. Either color can be glossy or matte finish. This coating material is cured by irradiating ultraviolet rays, has a hardness of about 4H, and is hardly scratched on the surface. An oil-modified two-pack type polyurethane resin paint can be used for the paint finish.

12. An example of the finishing dimensions of the bamboo laminated flooring 10 is a thickness T = 15 mm, a width W = 90 mm, and a length L = 910.
mm. Length is 455mm, 60
When it is set to 6 mm, 758 mm, 910 mm, or 1820 mm, the use is expanded. Of course, other dimensions may be used.

As another manufacturing method, a desired number of the bamboo materials 1 are laminated in the same manner as described above without forming the surface bamboo material 11 in advance, and a laminated board 30 is formed. There is also a method of chamfering the surface in an arc shape. Also, a plurality of bamboo materials 1 are arranged and bonded in the width direction to form a laminated plate 4 (FIG. 3A), and a plurality of bamboo materials 11 for the surface are arranged and bonded in the width direction to form a surface laminated plate 44 (FIG. 3B). ), Glued board 4
The required number of seams 2 between the bamboo materials 1 of the upper and lower laminated boards 4 are shifted laterally, and a desired number of the seams 2 are laminated. (See FIG. 4).
The other steps in each method are the same as described above.

[0030]

[Use example of bamboo laminated flooring material of the present invention] The bamboo laminated flooring material of the present invention can be used as a flooring material. FIG. 7 shows a case in which a floor material is used in combination with a floor heating system.
It will be described based on.

FIG. 7 shows a floor base 12 made of flameproof plywood having a thickness of about 12 mm and a recess 1 having a depth of about 4 mm.
3 is formed, a heat insulating material 14 having a thickness of 2 to 3 mm is laid on the concave portion 13, and a sheet heating element 15 having a thickness of about 1 mm obtained by coating a conductive heating paint on a polyester film is laid thereon. The bamboo laminated flooring 10 of the present invention is laid thereon. The sheet heating element 15 has a width of 25 cm and a length of 70 c.
m or 160 cm is used, and leads (not shown) are attached. In this case, the bamboo laminated flooring 10 used is, for example, a square having a length and width of about 20 cm, which are alternately arranged so that the bamboo fiber direction is lengthwise and widthwise, and as a whole, as shown in FIG. It has a pattern. The arrangement of the bamboo laminated floor members 10 can be other arrangements. Also, since the bamboo laminated flooring of the present invention has a continuous arc surface, the acupoints on the soles of the feet are stimulated just by walking on the floor, and the bamboo stepping effect can be obtained naturally,
It is particularly suitable for use as flooring in places where people usually walk barefoot, such as bathrooms and undressing rooms. However, when used in a particularly humid place such as a bathroom or a dressing room, it is desirable to perform a waterproof treatment such as coating the surface with an aqueous vinyl resin.

[0032]

The first invention of the present application has the following effects. . Since the surface is formed by a continuous arc surface, the acupressure points on the soles of the feet are pressed just by walking on the surface, and a bamboo stepping effect can be obtained naturally. . When the bamboo materials 1 are arranged side by side, the bamboo materials 1 are firmly joined because they are shifted laterally from the seam 2 between the lower bamboo materials 1. . Since the bamboo material 1 is a square plate having a thickness of several mm and a width of several cm, it is easy to hold and easy to stack. Moreover, it becomes sufficient thickness as a flooring material only by laminating several layers. . It is possible to naturally use the bamboo stomping effect, so it is suitable for people who are usually barefoot to use as flooring in bathrooms and undressing rooms, and because bamboo has a deodorizing effect, it is used as a flooring for saunas etc. Particularly suitable for. . Since the bamboo material 1 has been treated for fungicide, it has excellent fungicidal properties and does not corrode even when laid in places with high humidity and moisture. . Since the bamboo material 1 dried and dehumidified at a low temperature is used, the bamboo material 1 is hardly distorted or cracked due to drying after laying on the floor, and is hardly deformed even after laying.

The second invention of the present application has the following effects in addition to the above effects. . Since the bamboo material 1 of the uppermost layer is arranged so that the knot patterns 16 are on the surface, the bamboo pattern appears on the surface, and the bamboo has a unique appearance and texture.

The third invention of the present application has the following effects in addition to the above effects. . Since the fitting protrusion 5 is formed on one side of the outer peripheral surface 20 of the laminate 30 and the fitting protrusion 5 of another bamboo laminated floor material is formed on the other side, a large number of fitting recesses 6 are formed. The bamboo laminated flooring can be easily connected and laid, and the bamboo laminated flooring is less likely to be displaced after the laying. . Since both the fitting projection 5 and the fitting recess 6 are formed in the direction of arrangement or the thickness of the bamboo material 1, even if they are formed, the bamboo material 1
Is not divided into two or the thickness of the bamboo material 1 is not thinned. . Since both the fitting projection 5 and the fitting recess 6 are the same or almost the same in thickness as the bamboo material 1, the fitting projection 5 and the fitting recess 6 are also used.
Is also easy to form.

The fourth invention of the present application has the following effects in addition to the above effects. . Since the surface of the uppermost bamboo material 1 is subjected to UV coating, the surface is hard and hard to be scratched, and it is hard to stand up, so it is safe to use as a floor material.

The fifth invention of the present application has the following effects in addition to the above effects. . Since the bamboo material 1 in the uppermost layer is made to be a single piece wider than the bamboo material 1 in the lower layer, one piece of the bamboo material 1 is exposed on the surface to improve the appearance, and since it is one piece, the joining is more efficient. It will be even stronger.

The sixth invention of the present application has the following effects in addition to the above effects. . Since the groove 7 is formed on the bottom surface of the central portion of the lowermost bamboo material 1, it can be easily laid horizontally even if the floor on which it is laid is somewhat uneven. . After laying on the floor, the concave groove 7 becomes a ventilation path, so that the air permeability is improved and the bamboo material 1 is hardly moldy.

The seventh invention of the present application has the following effects in addition to the above effects. . Since the muffling material 8 is attached to the back surface of the bamboo material 1 in the lowermost layer, the soundproofing effect is exhibited when used as a floor material on the second floor of the building.

The eighth invention of the present application has the following effects in addition to the above effects. . Since the bamboo laminated flooring materials are two or more, and the arrangement direction of the topmost bamboo materials 1 is a vertical and horizontal checkered pattern,
It looks beautiful and looks good. . It is possible to naturally use the bamboo stomping effect, so it is suitable for people who are usually barefoot to use as flooring in bathrooms and undressing rooms, and because bamboo has a deodorizing effect, it is used as a flooring for saunas etc. Particularly suitable for.

[Brief description of the drawings]

FIG. 1A is a perspective view showing a first embodiment of a bamboo laminated flooring material of the present invention, and FIG. 1B is an end view of the bamboo laminated flooring material.

FIG. 2 is an explanatory view showing a second embodiment of the bamboo laminated flooring material of the present invention.

FIG. 3 (a) is a laminated board 4 in the bamboo laminated flooring material of the present invention.
FIG. 7B is an explanatory view showing the formation process of the surface, and FIG.
Explanatory drawing which shows the formation process of.

FIG. 4 (a) is a partially cutaway perspective view showing another embodiment of the bamboo laminated flooring material of the present invention, and FIG. 4 (b) is a sectional view taken along line XX of FIG. 4 (a).

FIG. 5 is an explanatory view for assembling the bamboo laminated flooring material of the present invention.

FIG. 6 is an explanatory view showing an example of the bamboo laminated floor material of the present invention after assembly.

FIG. 7 is an explanatory longitudinal sectional view when the bamboo laminated floor material of the present invention is used in combination with a floor heating system.

8 (a), (b), and (c) are explanatory views showing a process of forming the bamboo material 1 or the surface bamboo material 11 used for the bamboo laminated flooring material of the present invention.

FIG. 9 is an explanatory view of a conventional laminated material using a bamboo material.

FIG. 10 is an explanatory view of a conventional bamboo plywood using a bamboo material in combination with a plywood.

11A is a perspective view showing an example of a bamboo laminated flooring material developed earlier by the present applicant, and FIG. 11B is a cross-sectional view in the width direction of FIG.

[Explanation of symbols]

 1 is a bamboo material 2 is a seam 3 is a laminated overlapping portion 5 is a fitting projection 6 is a fitting concave portion 7 is a concave groove 8 is a sound deadening material 10 is a bamboo laminated floor material 20 is an outer peripheral surface 30 is a laminated plate

Claims (8)

[Claims] 1. A bamboo material (1) having a thickness of several mm and a width of several cm formed by horizontally and vertically grinding bamboo, such as Moso bamboo, and having been subjected to antifungal treatment and low-temperature dehumidification and drying. A plurality of bamboo materials (1) are arranged in the width direction, and the seam (2) between the bamboo materials (1) is placed on the lower bamboo material (1).
Two or more layers are shifted laterally from the seam (2) between them, and the surface of the uppermost bamboo material (1) is formed in an arc shape, and the seam (2) and the laminated portion (3) of the bamboo material (1) are formed. A bamboo laminated flooring comprising a square laminated plate (30) obtained by adhering a bamboo laminate with an adhesive. 2. The bamboo assemblage according to claim 1, wherein the bamboo material (1) of the uppermost layer of the laminate (30) according to claim 1 is arranged such that the joint pattern (16) of the bamboo material (1) is on the surface. Flooring. 3. The laminate (3) according to claim 1 or 2,
0) on any side of the outer peripheral surface (20).
0), a fitting projection (5) projecting outward in the arrangement direction or the longitudinal direction of the bamboo material (1) is formed, and the bamboo material (1) is formed on the other side of the outer peripheral surface (20) than the outer peripheral surface (20). ), A fitting recess (6) is formed which is recessed inward in the arrangement direction or longitudinal direction and into which the fitting protrusion (5) of another bamboo laminated floor material can be fitted, and the fitting protrusion (5) and the fitting recess are formed. (6) A bamboo laminated floor material characterized in that it is formed to have the same or substantially the same thickness as the bamboo material (1). 4. A bamboo laminated flooring material, wherein the surface of the uppermost bamboo material (1) of each of the laminated boards (30) according to claim 1 is subjected to UV coating. 5. The bamboo laminated flooring according to claim 1, wherein the uppermost bamboo (1) is a lower bamboo (1).
Bamboo laminated flooring characterized by a wider sheet. 6. The bamboo laminated flooring material according to claim 1, wherein the lowermost bamboo material (1) has a groove (7) which is one step deeper than both outer sides in a widthwise central bottom surface. Bamboo laminated flooring characterized by doing. 7. A bamboo laminated flooring material according to claim 1, wherein a sound absorbing material (8) is attached to the back surface of the lowermost bamboo material (1). . 8. The bamboo laminated flooring (10) according to claim 1 or 2, wherein at least two bamboo laminated floors (1) are arranged so that the arrangement direction of the uppermost bamboo (1) is a vertical and horizontal checkered pattern. Floor structure using bamboo laminated flooring characterized by the following.