JP2609507B2 - Tatami and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tatami mat having a tatami floor and a tatami mat made of a thermoplastic material such as rubber or synthetic resin, and a method of manufacturing the same.

[0002]

2. Description of the Related Art Conventional tatami mats are made of rush (hereinafter referred to as rush).
Is fixed on one surface of a tatami floor sewn with rice straw laminated and compressed, and cloth tatami edges are sewn to both side edges thereof. Since such tatami mats are thick and extremely heavy, they require a large amount of labor for carrying work and are inconvenient. In addition, the tatami mats described above are manufactured by tatami craftsmen by hand for most of the production process, and the tatami manufacturing work is time-consuming and productivity is poor.
In addition, when the building is a multi-family house where a Japanese-style room and a Western-style room are arranged adjacent to each other on a concrete floor extending substantially in one plane, if the above-mentioned tatami mat is used in the Japanese-style room, the floor of the Western-style room and the steps are reduced. It is easy to fall and stumbles and is very dangerous and less secure, especially in homes where infants or the elderly live.

In another prior art, in order to reduce the weight of a tatami mat, a thin wooden plywood is fixed to one surface of a tatami mat floor made of a foamed synthetic resin having an expansion ratio of about 35 to 40 times, and a tatami mat is further placed thereon. The tatami mats are fixed on the tatami mat floor by manually sewn a long band-like tatami rim made of cloth on the rim to cover the rim of the tatami mat and improve the beauty of the tatami mat. However, in such prior art, the tatami floor has an expansion ratio of 35 to 35.
Since it is made of foam synthetic resin of about 40 times, tatami can be manufactured at a low material cost using a commercially available urethane foam or the like. There is a problem that the strength is low, and when furniture or the like is placed, the furniture is deformed in a direction in which the thickness is reduced due to its compressive force.

[0004] Still other prior arts are disclosed in, for example, Japanese Utility Model Laid-Open Publication No. Sho 62-19330, Japanese Utility Model Laid-Open Publication No. 62-69536,
-2830, Japanese Utility Model Laid-Open No. 4-94031.
In these prior arts, the tatami floor and the tatami surface are joined with an adhesive or a double-sided tape, and there is a problem that such joining work between the tatami floor and the tatami surface is troublesome and productivity is low. In addition, since the adhesive and the double-sided tape are partially applied or adhered on one surface of the tatami floor, in other words, they are not joined over the entire surface, so that such tatami is laid. When cutting according to the shape of the room to be cut, unjoined areas between the tatami floor and the tatami mat surface that are not joined are exposed at the cut part, and joining such unjoined areas at the building site is extremely time-consuming. There is a problem that the workability is poor.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a tatami mat which is lightweight, has a moderate compressive strength, can be easily manufactured at low cost, and a method for manufacturing the tatami mat.

[0006]

According to the present invention, a tatami mat made of a thermoplastic material is heat-welded to one surface of a plate-shaped tatami floor having a plurality of through holes penetrating in a thickness direction. The tatami mat has a length equal to the thickness of the tatami floor, and a reinforcing insert made of a hard synthetic resin is selectively inserted into at least a part of the plurality of through holes. It is a tatami mat. Further, the present invention is characterized in that a recess is formed in the tatami floor from the other surface opposite to the one surface on which the tatami mat is thermally welded. The present invention also relates to a method of manufacturing a tatami mat by thermally welding a tatami mat made of a thermoplastic material to one surface of a plate-shaped tatami mat made of a thermoplastic material, wherein a notch groove cut out inward from a side portion of the tatami mat floor. Is formed, and the periphery of the tatami surface is bent, inserted into the notch groove, and thermally welded. The present invention also provides a method of manufacturing a tatami mat by thermally welding a tatami mat made of a thermoplastic material to one surface of a plate-shaped tatami mat made of a thermoplastic material. Formed notched groove, bend the periphery of the tatami mat, insert into the notched groove,
A tatami manufacturing method characterized by heat welding.

[0007]

According to the present invention, in a tatami mat in which a tatami mat made of a thermoplastic material is heat-sealed on one surface of a plate-shaped tatami mat made of a thermoplastic material, through holes are formed in the tatami mat floor. Traditionally used tatami floors made by layering and compressing rice straw
A tatami mat having a breathability equal to or higher than that of a natural tatami floor and having a good touch can be efficiently produced. In addition, if the reinforcing insert is inserted into the through hole, the tatami mat will not be dented by the weight of furniture or the like. Further, since a place where furniture and the like are not placed does not use the reinforcing insert, the same feeling as a natural tatami floor can be obtained when stepped on. Further, when the place for placing furniture or the like is changed, it is only necessary to replace the reinforcing insert.

Further, according to the present invention, the tatami mat surface is not heat-welded, and a recess is formed from the other surface, so that air permeability can be further improved, and electric wires and the like are arranged in the recess so that the lower surface of the tatami mat is provided. And the wiring can be freely performed, and the convenience is improved. In addition, since materials can be saved, the weight can be reduced and the tatami can be reduced in weight.

According to the method of manufacturing a tatami mat according to the present invention, a notch groove is provided in a side portion of the tatami floor or a peripheral portion of the other surface, the peripheral portion of the tatami mat is inserted into the notch groove, and heat welding is performed. As a result, the tatami mat is securely fixed to the tatami floor with greater strength, the periphery of the tatami mat does not protrude from the surface of the tatami mat, and the periphery of the tatami mat does not peel off, thereby improving the appearance.

In the following description, first, a configuration premised on the present invention will be described with reference to FIGS. 1 to 17, and each embodiment of the present invention will be described with reference to FIGS.

[0011]

FIG. 1 is a cross-sectional view of a tatami mat 1 having a configuration presupposed by the present invention, which is enlarged in a thickness direction. FIG.
2 is a perspective view showing a heat-welded portion 10 of FIG. Referring to these drawings, tatami 1 is composed of tatami floor 2 and tatami table 3, and has a vertical width L1.
Is about 60 cm, for example, and the width B1 is 4
The thickness T1 is, for example, 5 to 15 cm.
mm. The tatami mat 2 is made of a thermoplastic material such as butadiene-based synthetic rubber such as butadiene-styrene copolymer resin, olefin-based synthetic rubber such as butyl rubber, polysulfide-based synthetic rubber, polyurethane rubber, and soft synthetic material such as ethylene-vinyl acetate elastomer. It is made of rubber and has water resistance and flame retardancy. For example, PAN
A compounding agent such as a rubber antioxidant such as (Phenyl-1-Naphthylamine) may be added.

The tatami mat 3 is woven using artificial grass made of a composite material obtained by combining a synthetic resin, an inorganic material such as calcium carbonate, and a natural material.
An olefin-based resin is preferably used, and a sap called a tar collected from a tree is preferably used as a natural material. Such a tatami table 3 has appropriate absorbency and slipperiness, does not undergo discoloration or fading, does not generate mold, is hardly stained, has low water absorption, and has appropriate elasticity.
Moreover, the new composite is non-toxic and will not emit toxic gases when burned.

The tatami mat 3 is placed on one surface 2a of the tatami floor 2, and is heated and pressurized to about 120 to 150 ° C. by a heating element 6 having a built-in heating resistor from the tatami mat 3, for example. Heat welded. In this example, the heat-welded region 10 shown by hatching in FIG.
The tatami mat 3 is welded.

FIG. 3 is a perspective view showing a state in which four tatami mats 1 shown in FIG. 1 are placed side by side. The tatami mat 1 has, for example, a vertical width L
1 is about 60cm, total width B2 is 160 ~ 200c
m, and can be used as a bed for a caregiver of an inpatient at a hospital or the like. Further, it can be suitably used as a cot even in a train or a long-distance bus.

FIG. 4 is a perspective view showing a state where the tatami 1 is stored in a storage bag 4. The tatami 1 can be easily carried by storing a plurality of the tatami mats 1 in a storage bag 4 made of, for example, a light-transmitting polyethylene. A zipper 5 is formed in a U-shape at a peripheral portion of one surface of the storage bag 4, and the tatami 1 can be easily taken out or stored by opening and closing the zipper 5. As described above, the tatami mat 1 is manufactured by heat-welding the tatami mat 3 to one surface 2a of the tatami mat floor 2 made of rubber which is a thermoplastic material, so that it can be mass-produced at low cost. Therefore, the consumer can easily purchase the product at a store such as a home center or a large supermarket, and the convenience is improved.

FIG. 5 is a sectional view showing a tatami 11 of still another configuration presupposed by the present invention mounted on a floor 9 of a building. The tatami 11 is used as a fitting for forming a Japanese-style room inside the building. ing. The tatami mat 11 has substantially the same configuration as the tatami mat 1 described above,
Corresponding parts have the same reference characters allotted. It should be noted that the tatami 11 has a size similar to a conventional tatami having a height of 80 to 95.5 cm and a width of 170 to 191 cm. However, the thickness T1 is formed as thin as, for example, 5 to 20 mm similarly to the above-mentioned tatami 1. Therefore, for example, even in an apartment house or the like where a Western-style room and a Japanese-style room are arranged adjacently on a concrete floor 9 extending in one plane, each of the tatami mat 11, the threshold 8 and the flooring board 7 is provided. It can be laid without any step on the upper surface. Therefore, there is no step between the floor of the Japanese-style room and the floor of the Western-style room, and no accidents such as tripping and falling down can be obtained, and it is possible to obtain a suitable living space particularly in a home with infants and the elderly.

A tatami 11 having a tatami floor 2 made of rubber
Is easy to process, and can be cut into a desired shape, for example, on site, thereby improving convenience. Further, since the tatami floor 2 is made of rubber, even if the floor surface on which the tatami 1 is laid is uneven, the tatami floor is well-fitted, and the tatami mat can be laid exactly along the floor surface.

FIG. 6 is a perspective view showing a tatami mat 13 having another configuration based on the present invention, and FIG. 7 is a tatami mat 13a to 13t shown in FIG.
13d, four in the vertical width direction L and two in the horizontal width direction B
FIG. 5 is a plan view seen from above when the sheets are connected. Since the tatami mats 13a to 13d are similar to the tatami mats shown in FIGS. 1 to 4 described above, corresponding portions are denoted by the same reference numerals. In each corner A, B, C, D of the tatami floor 2 of the tatami mats 13a to 13d, magnetic attraction members 14 to 17, which are realized by permanent magnets, for example, are embedded. The magnetic attraction members 14 provided at the corners A and the magnetic attraction members 16 provided at the corners C, which are diagonal to each other, have magnetic poles facing outward and have the same polarity.
The magnetic attraction member 15 provided at the corner A and the magnetic attraction member 17 provided at the corner D differ from the magnetic attraction member 14 provided at the corner A in the polarity of the magnetic pole facing outward. For example, the polarity facing the magnetic attraction members 14 and 16 is an N pole, and the polarity facing the magnetic attraction members 15 and 17 is an S pole.

The tatami mat 13b is connected to the tatami mat 13a in the longitudinal direction L. At this time, one corner B of the tatami mat 13a adjacent to the tatami mat 13b is connected to a corner A of the tatami mat 13b,
The other corner C of the tatami mat 13a is connected to a corner D of the tatami mat 13b. Similarly, in the width direction B of the tatami mat 13a,
d are connected, and a tatami mat 13c is joined in the vertical width direction L of the tatami mat 13d and the horizontal width direction B of the tatami mat 13b.

As described above, at the corners A to D of the tatami floor 2, the magnetic attracting members 14 to 17 having the same diagonal outwardly facing polarities are provided, as shown in FIG. A plurality of tatami mats 13 are desired such that the corners provided with magnetic attraction members having different polarities facing outward, for example, corner A and corner B or corner A and corner D are adjacent to each other. It can be connected to the shape to prevent displacement. Also, as shown in FIG. 3 described above, a plurality of tatami mats 13 are arranged in a line,
The tatami mats 13 may be connected to each other by the magnetic attraction members 14 to 17 and used as a cot.

As another configuration presupposed by the present invention, the magnetic attraction member is provided near the center in the width direction of each side surface of the tatami mat, and the magnetic attraction member provided on the opposite side surface has a magnetic pole facing outward. They may be arranged differently.

The tatami mats in which all magnetic poles facing the outside are N poles and the tatami mats in which the magnetic poles are all S poles may be alternately combined and connected.

FIG. 8 is a perspective view showing a tatami 21 having still another configuration based on the present invention. The tatami 21 is shown in FIGS.
And are manufactured by a similar manufacturing method, and corresponding parts are denoted by the same reference numerals.
It should be noted that the tatami 21 has a thickness T1 of, for example, 5 to 20.
mm. FIG. 9 is a perspective view showing a tatami 22 having still another configuration of the present invention. The tatami mat 22 is made of the same material as that of the tatami mat 1 shown in FIGS. 1 to 4, is manufactured by a similar manufacturing method, and the corresponding portions are denoted by the same reference numerals. It should be noted that the tatami 22 has a thickness T1 of, for example, 5 to 20 m.
m.

FIG. 10 is a perspective view showing a tatami mat 23 having still another configuration based on the present invention. The tatami mat 23 is made of the same material as that of the tatami mat 1 shown in FIGS. 1 to 4, is manufactured by a similar manufacturing method, and the corresponding portions are denoted by the same reference numerals. It should be noted that the tatami 23 has a thickness T1 of, for example, 5 to 5.
The top and bottom surfaces of 20 mm are elliptical with the same size.

Further, the welded portions 51 between the tatami floor 2 and the tatami table 3 may be arranged at intervals along the periphery of the tatami floor 2 and diagonally, as shown by oblique lines in FIG.
As shown by hatching in FIG.
And a welding portion 5 comprising a welding portion 52b formed in a staggered manner.
2 may be heat-welded.

Further, the tatami mat 3 may be heat-welded over the entire surface of the tatami mat 2, and such a tatami mat is provided by the tatami mat 2 and the tatami mat 3.
Since there is no unjoined area, even if it is cut into a desired shape on site, there is no need to perform a joining operation, and the tatami laying operation can be performed quickly and easily.

FIG. 13 is a cross-sectional view of a tatami mat 20 of still another example of the configuration based on the present invention. The tatami mat 20 has substantially the same configuration as the tatami mat 1 shown in FIGS. 1 to 4 described above, and the corresponding parts are denoted by the same reference numerals. Notable is the tatami floor 2
A heating element on which a tatami table 3 is mounted, and a shaft portion 24a parallel to the side surface 20a of the tatami 20 and a heating portion 23a inclined in a direction approaching the side surface 20a of the tatami 20 are integrally formed. 26a is moved in the direction approaching the tatami mat 20 as indicated by an arrow D1, and the heat generating portion 23a is brought into contact with one corner 25a of the surface of the tatami mat 20 on which the tatami mat 3 is mounted, and The width W of, for example, about 5 mm is provided over the entire length of the portion 25a, and heat welding is performed at a temperature of, for example, 120 to 160 ° C. Similarly, the side 20 opposite to the side 20a of the tatami 20
The heating element 26b is also moved in the direction of arrow D2 in the direction of arrow b, and the heat generating portion 23b is brought into contact with the other side portion 25b opposite to the one side portion 25a to be thermally welded. Further, the corners perpendicular to the side portions 25a and 25b of the tatami mat 20 are heat-welded in the same manner, and the tatami mat 3 is heat-welded over the entire periphery.

As described above, in the tatami mat 20, the tatami mat 3
It is only necessary to slightly heat-weld the peripheral portion on the side where is mounted, the area compressed by the heat welding is small, and the beauty of the tatami 21 is improved.

FIG. 14 is a partial perspective view showing a tatami floor 27 having still another configuration based on the present invention. Tatami floor 27
Has substantially the same configuration as the tatami floor 2 shown in FIGS. 1 to 4, but the tatami floor 27 has mesh-shaped through holes 29 and is excellent in air permeability. The through hole 29 is a square having a side length L2 of, for example, about 2 to 8 mm.
Is such that the feel when stepping on the tatami floor 27 in a state where the tatami mat is formed by heat welding with the tatami table 3 is not different from the conventional tatami mat. Since the tatami floor 27 as described above has the through holes 29, the tatami floor 27 is excellent in air permeability, requires less material for the tatami floor 27, and is lightweight.

FIG. 15 is a partial perspective view showing a tatami floor 28 of still another configuration based on the present invention. Tatami floor 28
Has a plurality of semi-cylindrical concave grooves 31 formed in parallel on a bottom surface 30 opposite to a surface on which the tatami table 3 is mounted. Such a tatami floor 28 requires less material and is lighter.

As still another configuration presupposed by the present invention, as shown in FIG. 16, a tatami mat 33 is formed on a peripheral portion of a bottom face 34 as a so-called magic tape as a suction member with a narrow width made of vinyl chloride or other synthetic fiber. Using fine fibers of synthetic resin for the tape, countless fine loop-shaped linear members are implanted on one adsorbing member 36, and fine hook-shaped linear members are implanted on the other adsorbing member 37. Tape 3
5 are attached. The one suction member 36 is attached to the bottom surface 30 using an adhesive or the like, and the other suction member 37 is attached over two one suction members 36 attached to two tatami mats 33. Thus, the two tatami mats 33 can be connected. Similarly, a plurality of tatami mats 33 can be connected to form a desired shape.

Further, as still another example of the configuration on which the present invention is based, as shown in FIG.
It can also be suitably used as shoe soles such as shoes and sandals. At this time, between the tatami mat floor 42 and the tatami mat table 43, a sheet 4 of a deodorant and a moisture absorbent made of porous carbon particles such as charcoal powder, coconut charcoal activated carbon, and rice charcoal is provided.
4 may be interposed avoiding the heat welding area between the tatami floor and the tatami floor. In the artificial grass of the tatami mat 43, if the direction of the fiber is arranged perpendicular to the longitudinal direction of the shoes and sandals, a large frictional force is generated between the legs and the shoes and sandals, and the sole of the foot on the tatami mat 43 The shoes and sandals can be used comfortably without slipping. Further, in a chair, for example, a so-called folding chair in which a seating portion and a back plate are connected by a hinge so as to be angularly displaceable, the aforementioned tatami mat can be suitably used for the seating portion and / or the back plate. Further, the above-mentioned tatami mat may be used on the entire surface from the seating portion of the chair to the back plate.

FIG. 18 is a sectional view of a tatami 61 manufactured by the method of manufacturing a tatami according to one embodiment of the present invention, which is enlarged in the thickness direction. The tatami mat 61 includes a tatami mat floor 62 and a tatami mat table 63, and the tatami mat table 63 is mounted on one surface 69 of the tatami mat floor 62. The tatami floor 62 is a plate-like body made of a hard foamed synthetic resin, for example, expanded polystyrene, and has a notch groove 64 cut out from the substantially central portion in the thickness direction to the inside in the circumferential direction. Are formed. The foamed synthetic resin is hard, for example, foamed to have a foaming ratio of about 10 to 15 times. Here, the expansion ratio indicates the degree of foaming of the synthetic resin, and is a value obtained by dividing the density of the material synthetic resin before foaming by the apparent density after foaming.
The expansion ratio is as low as about 10 to 15 times, and it has high compression hardness and compression strength. That is, in the test method according to JIS, the density of the foamed synthetic resin is, for example, 0.05 to 0.15 g / cm ³ , the tensile strength is 8.0 kg / cm ² or more, and the tensile strength is 3.0 k.
g / cm ² or more, and the compression hardness is improved to 1.0 kg / cm ² . The thickness T2 of the tatami floor 62 is, for example, 5
２０20 mm, and the side portions 62 a, 62
A cutout groove 64 having a width T3 of, for example, 2 to 8 mm and a depth D3 of 10 to 30 mm is formed substantially at the center of b.

The tatami mat 63 is formed by knitting a composite material obtained by combining a synthetic resin, a natural material and an inorganic material.
Of the notch groove 6 over the entire circumference in the circumferential direction.
4 and is fixed by heat welding.

FIG. 19 is a sectional view showing a manufacturing process of the tatami 61 shown in FIG. As shown in FIG. 19 (1),
The tatami table 63 is mounted on one surface 69 of the tatami floor 62 on which the notch groove 64 is formed, and the pressing member 65 fixes and positions the tatami table 63. At this time, the tatami mat 63 extends outward from the periphery of the tatami mat floor 62.

As shown in FIG. 19 (2), a thin plate-like heating element 66 having a built-in heating resistor is displaced in the direction X approaching the notch groove 64a of the tatami floor 62.
As shown in (3), the insertion portion 67a extending in the longitudinal direction P of the tatami table 63 is inserted into the notch groove 64a. In this state, the heating element 66 was heated, the surface of the tatami floor 62 facing the notch groove 64a was melted by heat, and the heating element 66 was pulled out in the direction away from the tatami floor 62, that is, in the arrow Y direction. Thereafter, the insertion portion 67a of the tatami table 63 is heat-welded to the tatami floor 62. Similarly, the insertion portion 67b is also provided with the notch groove 64.
b and heat-welded.

FIG. 20 is a partial perspective view showing a manufacturing process of the tatami 61 described above. As shown in FIG.
One of the insertion portions 67c extending in the width direction R perpendicular to the longitudinal direction P of the tatami table 63 is inserted into the notch groove 64c by the heating element 66 in the same manner as the above-described insertion portions 67a and 67b extending in the longitudinal direction P. It is inserted and thermally welded in the notched groove 64c. Thereafter, the bending line 68b is bent inside such that the bending line 68c overlaps the bending line 68a with the bending line 68b inside.
The overlapping portion 71 where the bending line 68a and the bending line 68c overlap is thermally welded over the exposed length L3. Similarly, the other insertion portion extending in the width direction R (not shown) is inserted into the notch groove 64 and thermally welded, and the remaining overlapping portion 71 of the tatami mat 63 is also thermally welded. Tatami floor 62
The end faces of the tatami table 63 and the tatami floor 62 are exposed to the upper side, that is, the tatami table 63 side by heat welding the notch groove 64 and the insertion part 67 of the tatami table 63 over the entire circumference of the side of the tatami table 63. The tatami mat 63 can be securely fixed to the tatami mat floor 62 without any trouble.

Before inserting the heating element 66,
The notch groove 64 may be filled with a commercially available welding agent.

In the embodiment shown in FIGS. 18 to 20, the portion extending outward from the periphery of the tatami floor 62 of the tatami mat 63 is bent along the folding lines 68a to 68c to form the overlapping portion 7.
1 was thermally welded over the exposed length L3, but the tatami table 63 may be cut along the bending lines 68a and 68c to remove the corners 120, and the overlapped portion 71 may be thermally welded over the exposed length L3.

As described above, according to this embodiment, it is not necessary to manually sew the tatami mat 63 to the tatami mat floor 62 as in the prior art, so that productivity can be improved.

FIG. 21 is a cross-sectional view of a tatami 70 manufactured by a tatami manufacturing method according to another embodiment of the present invention. FIG.
In the embodiment shown in FIGS. 20 to 20, a notch groove 64 is formed in the side portion of the tatami floor 62 from the substantially central portion in the thickness direction to the inside in the entire circumferential direction, and the notch groove 64 is formed.
In this embodiment, the insertion portion 67 of the tatami table 63 is inserted and heat-sealed. However, in this embodiment, one surface 72 of the tatami floor 72 on which the tatami table 73 is mounted is mounted.
A notch groove 121 cut out from the other surface 72b opposite to a to the one surface 72a is formed. Further, the notch groove 121 is provided over the entire circumferential direction of the periphery of the other surface 72b of the tatami floor 72, and the insertion portion 77 of the tatami table 73 is inserted into the notch groove 121 in the same manner as in the above-described embodiment. Heat welding.

As described above, according to the present embodiment shown in FIG. 21, the notch grooves are formed in the other surface 72b of the tatami floor 72, so that the same effects as those of the above-described embodiment shown in FIGS. Is obtained, and the tatami mat 73 covers the side portion of the tatami mat floor 72 over the entire circumference, so that the aesthetic feeling is improved, and the tatami mat can be more securely attached with higher strength.

As still another embodiment of the present invention,
A hygroscopic far-infrared ray generating sheet in which a porous carbon powder and a far-infrared ray generating substance are mixed may be interposed between the tatami floors 62 and 72 and the tatami mat tables 63 and 73 described above. The hygroscopic far-infrared ray generating sheet is made of an activated porous carbon powder (hereinafter, referred to as an activated carbon powder).
And a predetermined amount of a far-infrared ray generating substance. The mixing amount of the carbon powder and the far-infrared ray generating substance is basically 50% by weight in each case, but can be appropriately increased or decreased depending on the use.

As the carbon powder, one or more of charcoal powder, coconut charcoal activated carbon, and rice husk charcoal are used in combination. The carbon particles absorb moisture and odor in the air, and the absorbed moisture is gradually released when the surroundings are dried. The odor is decomposed and deodorized.

As the far-infrared ray generating substance, for example, a ceramic powder is used. The ceramic powder has the property of absorbing and storing heat, converting the stored heat into far-infrared rays and dissipating it.

The carbon particles and the far-infrared ray generating substance are mixed with a synthetic resin such as expanded polystyrene as a binder to form a hygroscopic far-infrared ray generating sheet.

As described above, according to the present embodiment, the tatami floor 6
Since the hygroscopic far-infrared ray generating sheet in which the porous carbon particles and the far-infrared ray generating substance are mixed is used between the 2,72 and the tatami mats 63,73, the moisture or excessive moisture generated in the room is temporarily absorbed. It keeps the room dry and absorbs the odor in the room, and the stored moisture and humidity gradually evaporate when it dries, allowing the indoor humidity to be adjusted.
The odor can be easily and quickly manufactured to be decomposed and eliminated.

FIG. 22 shows a tatami mat 8 according to still another embodiment of the present invention.
FIG. 23 is a cross-sectional view of a part of FIG.
FIG. The tatami 81 has a tatami table 82 and a tatami floor 83.
The tatami table 82 is mounted on a tatami floor 83, and the periphery thereof is thermally welded. The tatami mat 82 is formed by knitting a material using artificial grass, for example, a composite material obtained by combining a synthetic resin, a natural material, and an inorganic material.

The tatami floor 83 is made of a rigid foam synthetic resin material, and has a plate portion 110 and legs 111. As shown in FIG. 23, the tatami floor 83 is provided with a plurality of staggered through holes 87 having straight cylindrical inner peripheral surfaces at equal intervals. The through holes 87 ensure the air permeability of the tatami mat as in the case of the tatami mat floor 27 of the present invention shown in FIG.
4 is, for example, 2 to 5 mm, and the interval L4 between the adjacent through holes 87 is, for example, 15 to 30 mm. The expanded synthetic resin includes expanded polystyrene, rigid expanded polyurethane, expanded polyethylene, and the like. In this embodiment, expanded polystyrene is used. The expanded polystyrene is hard,
For example, it is foamed to a foaming ratio of about 10 to 15 times. The rigid expanded polystyrene has an expansion ratio of 10 to 1
The compressive strength is improved as low as about 5 times, and has a compressive strength capable of supporting a large weight of furniture and the like with a large strength together with the reinforcing insert 86 as described later.

FIG. 22 shows a state where a heavy article 85 such as furniture is placed on a tatami 81. Article 85
In order to prevent the tatami 81 from being dented by the weight of the
The reinforcing insertion piece 8 shown in FIG. 23 made of a synthetic resin harder than the tatami floor 83 is provided in the through hole 87 in the area where
6 is inserted. The insert 86 for reinforcement includes an insert 86a used for the plate-like portion 110 in which the back surface of the tatami floor 83 is cut out,
There is an insertion piece 86b used for the leg 111. The insertion piece 86a includes a right columnar insertion portion 112 and a right columnar support portion 113 having a diameter larger than that of the insertion portion 112.
The height H1 of 12 is equal to the thickness T4 of the plate-like portion 110. The insert 86b has a right cylindrical shape. The inserts 86a and 86b have the outer diameters of the insert portion 112 and the insert 86b of the insert 86a equal to the inner diameter D4 of the through hole 87. The height H2 is the thickness T of the tatami floor 83
Equal to 5. The thickness T5 of the tatami floor 83 is, for example, 5 to 20.
mm.

As described above, since the foamed synthetic resin is used for the tatami floor, it is possible to obtain a tatami mat which is easy to process, light and low in manufacturing cost. Also, since the foam synthetic resin is hard,
It has appropriate hardness and compressive strength, and can obtain the same feeling as a conventional tatami mat obtained by laminating and compressing rice straw, and can also be used for placing furniture and the like. Further, by providing a large number of through-holes 87 in the tatami floor 83, the air permeability is enhanced and the tatami floor 83 is comfortable. Further, in the region where the heavy article 85 is placed, the compressive strength can be improved by inserting the reinforcing insertion piece 86.

FIG. 24 is a partial perspective view showing a tatami floor 88 according to still another embodiment of the present invention, and FIG. 25 is a bottom view as viewed from below in FIG. The tatami floor 88 is shown in FIGS.
3 is made of the same rigid synthetic foamed resin material as the tatami floor 83 of the embodiment shown in FIG. Tatami floor 8
8 has a leg portion 90 and a plate-like portion 91, and the leg portion 90 is formed with an arc-shaped lower surface 90a, a support surface 90b indicated by hatching in FIG. 25, and a notch 90c. Leg 90
Are arranged in a grid pattern at intervals in the vertical and horizontal directions, and the distance L5 between the adjacent support surfaces 90b is, for example, about 50 to 150 mm. Further, the support surface 90b of the present embodiment has a square shape, but an arbitrary shape such as a circle may be appropriately selected and used. Also, by cutting a part of the leg portion 90 to a desired thickness, the tatami mat is installed so that the upper surface of the tatami mat becomes flat in conformity with the uneven shape of the floor surface on which the tatami mat 88 is laid. Can be.

By providing the leg portions 90 as described above, a space can be formed between the tatami mat and the floor surface, and an electric cord or the like can be inserted using this space, and the air permeability can be further improved. be able to. In addition, by adjusting the thickness of the legs 90, the tatami mat can be installed so that the upper surface of the tatami mat becomes flat even if the floor surface on which the tatami mat is laid is uneven.

FIG. 26 is a partial perspective view showing a tatami floor 92 according to still another embodiment of the present invention, and FIG. 27 is a sectional view thereof. In general, tatami mats have a width of 95.
5 x length 191.0 x thickness 5.5 cm), between 36 (width 91.0 x length 182.0 x thickness 5.5c)
m), between 58 (88.0 width x 176.0 length)
× 5.5 cm) and housing complexes smaller than 58 spaces. In the tatami floor 92, a plurality of grooves 93 corresponding to the respective sizes are formed. The groove 93 is V-shaped, the depth d is, for example, 2 to 5 mm, and the width B3 is, for example, 2 to 5 mm. The tatami floor 92 is the same size as the largest Honma room, and the groove 9 closest to the outer periphery is
4a is formed to have a size corresponding to 36 spaces, its inner groove 94b is formed to have a size corresponding to 58 spaces, and the innermost groove 94c is formed to have a size corresponding to between housing complexes. Thereby, a tatami floor can be manufactured with one type of mold.
In addition, the worker moves the tatami floor 9 along the tatami groove of the desired size.
By cutting 2, a tatami mat of a desired size can be easily obtained even in a building under construction.

FIG. 28 is a partial sectional view showing a tatami mat 96 according to still another embodiment of the present invention. The tatami mat 96 is composed of a tatami table 97 and a tatami floor 98, and the tatami 81 shown in FIGS. 22 and 23.
And has substantially the same cross-sectional configuration. The tatami mat 96 is provided with an insertion hole 99 into which the outlet 100 is fitted, and the outlet 100 is adhered to the inner peripheral surface of the insertion hole 99 using an adhesive or the like.

As described above, since the foamed synthetic resin is used for the tatami floor 98, the processing is easy, and the outlet 100 can be attached to the tatami mat 96.

FIG. 29 shows still another embodiment of the present invention.
As shown in the figure, a flat plate-shaped portion 103 and this plate-shaped portion 1
And a plurality of elongated holes 1 extending in the longitudinal direction of the leg portion 114.
The tatami floor 106 on which the 05 is formed may be used. By forming such a long hole 105, the material can be reduced, and wiring can be performed along a desired path on the floor surface by inserting a telephone line and / or an electric cord.

As still another embodiment of the present invention, as shown in FIG. 1 and FIG.
The tatami table 3 may be welded by heat-melting the heat-welded region 10 on the one surface 2a of the tatami floor 2 by the heating element 6, or the tatami floor and the tatami table may be thermally welded by the welding portion 51 shown in FIG. Alternatively, the tatami mat floor and the tatami mat surface may be heat-welded at the welding part 52 shown in FIG.

As still another embodiment of the present invention, FIG.
The tatami 61, 70, 81, 96 of each embodiment of FIG. 29 to FIG. 29 may be used as a simple bed by arranging four tatami mats like the configuration shown in FIG. May be stored in the storage bag 4 as shown in FIG. 4 as a premise, and furthermore, as shown in FIG. You may make it match with the upper surface of the threshold 8.

As still another embodiment of the present invention, magnetic attraction members 14, 15, 16, and 17 are built in at four corners like a tatami mat 13 shown in FIGS. 6 and 7 on which the present invention is based. They may be connected vertically and horizontally.

Further, as another embodiment of the present invention, the tatami mats 61, 70, 81 and 96 of the present invention are not limited to the conventional square tatami mats, but are circular tatami mats 21 shown in FIG. 8 and triangular mats shown in FIG. Tatami 22 and an elliptical tatami 23 shown in FIG. Further, as shown in FIG. 17, it can also be suitably used as a shoe sole of a shoe and an overlay of sandals. At this time, between the tatami floor 42 and the tatami table 43, a sheet 44 of a deodorant and a moisture absorbent made of porous carbon particles such as charcoal powder, coconut charcoal activated carbon, and rice charcoal is placed between the tatami mat and the tatami mat. It is advisable to intervene so as to avoid the heat-welded region.
In the artificial grass of the tatami mat 43, if the direction of the fiber is arranged perpendicular to the longitudinal direction of the shoes and sandals, a large frictional force is generated between the legs and the shoes and sandals, and the sole of the foot on the tatami mat 43 The shoes and sandals can be used comfortably without slipping. Further, in a chair, for example, a so-called folding chair in which a seating portion and a back plate are connected by a hinge so as to be angularly displaceable, the tatami mat of the present invention can be suitably used for the seating portion and / or the back plate. Further, the entire surface from the seating portion to the back plate of the chair may be used.

[0062]

As described above, according to the present invention, a tatami floor is provided with a through-hole, so that a tatami mat having the same air permeability as a natural tatami floor can be efficiently produced by reducing labor and labor. it can.
In addition, the reinforcing insert made of hard synthetic resin can be inserted into the through hole as needed, so that the tatami mats do not dent due to the weight of furniture and the like. It can be done simply by changing the insertion position.

Further, according to the present invention, since the tatami floor is provided with the recess, the material can be saved and the weight can be reduced, and the recess can be effectively used for electric wiring and the like, and the convenience is improved. .

Further, according to the present invention, the periphery of the tatami mat is inserted into the notch groove provided in the side portion of the tatami floor or the periphery of the other surface and is heat-sealed to prevent the tatami mat from peeling off. Screeching and aesthetics are improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a tatami mat 1 having a configuration based on the present invention.

FIG. 2 is a perspective view showing a heat-welded portion 10 of the tatami floor 2 of the tatami 1 shown in FIG.

FIG. 3 is a perspective view of a state where a plurality of tatami mats 1 shown in FIG. 1 are placed side by side.

FIG. 4 is a perspective view showing a state where the tatami mat 1 shown in FIG.

FIG. 5 is a cross-sectional view in which a tatami mat 11 having another configuration based on the present invention is placed on a floor structure 9.

FIG. 6 is a perspective view showing a tatami mat 13 having still another configuration based on the present invention.

FIG. 7 is a plan view seen from above when four tatami mats 13 shown in FIG. 6 are connected.

FIG. 8 is a perspective view showing a circular tatami 21 having still another configuration based on the present invention.

FIG. 9 is a perspective view showing a triangular tatami mat 22 having still another configuration based on the present invention.

FIG. 10 is a perspective view showing an elliptical tatami mat 23 having still another configuration based on the present invention.

FIG. 11 is a perspective view showing a heat-sealed portion 51 of the tatami floor 2 having a configuration premised on the present invention.

FIG. 12 is a perspective view showing a heat-welded portion 52 of another tatami floor 2 having a configuration based on the present invention.

FIG. 13 shows a tatami mat 20 having still another configuration based on the present invention.
FIG.

FIG. 14 is a tatami floor 2 of still another configuration based on the present invention.
FIG. 7 is a partial perspective view showing 7.

FIG. 15 is a tatami floor 2 having still another configuration based on the present invention.
8 is a partial perspective view showing FIG.

FIG. 16 shows a tatami mat 33 having still another configuration based on the present invention.
FIG.

FIG. 17 is a perspective view when a tatami mat having a configuration presupposed by the present invention is used as a shoe sole of a shoe or a shoe lining.

FIG. 18 is a cross-sectional view perpendicular to the longitudinal direction P of the tatami 61 manufactured by the tatami manufacturing method according to one embodiment of the present invention.

19 is a cross-sectional view showing a manufacturing process of the tatami 61 shown in FIG.

FIG. 20 is a partial perspective view showing a manufacturing process of the tatami mat 61 shown in FIG.

FIG. 21 is a perspective view of a tatami mat 70 according to still another embodiment of the present invention.

FIG. 22 is a sectional view of a part of a tatami 81 according to still another embodiment of the present invention.

23 is a perspective view of a tatami floor 83 of the tatami 81 shown in FIG.

FIG. 24 is a partial perspective view showing a tatami floor 88 according to still another embodiment of the present invention.

FIG. 25 is a bottom view as viewed from below in FIG. 24;

FIG. 26 is a partial perspective view showing a tatami floor 92 according to still another embodiment of the present invention.

FIG. 27 is a sectional view of the tatami floor 92 shown in FIG. 26;

FIG. 28 is a cross-sectional view of a part of a tatami mat 96 according to still another embodiment of the present invention.

FIG. 29 is a perspective view showing a part of a tatami floor 106 according to still another embodiment of the present invention.

[Explanation of symbols]

 61, 70, 81, 96 tatami 62, 72, 83, 90, 92, 98, 106 tatami floor 63, 73, 82, 97 tatami table 66 64b, 64c, 121 Notch groove 67a, 67b, 67c Insertion part

Claims (4)

(57) [Claims] 1. A tatami mat made of a thermoplastic material and having a plurality of through-holes penetrating in a thickness direction, wherein a tatami mat made of a thermoplastic material is heat-welded to one surface of the tatami mat made of the thermoplastic material. A tatami mat having the same length as that of the tatami mat, wherein a reinforcing insert made of a hard synthetic resin is selectively inserted into at least a part of the plurality of through holes. 2. The tatami mat according to claim 1, wherein the tatami mat floor has a recess formed from the other surface opposite to the one surface to which the tatami mat is heat-welded. 3. A method of manufacturing a tatami mat by thermally welding a tatami mat made of a thermoplastic material to one surface of a plate-shaped tatami mat made of a thermoplastic material, wherein a notch groove cut inward from a side portion of the tatami mat floor. The method of manufacturing a tatami mat according to claim 1, further comprising bending the peripheral portion of the tatami surface, inserting the bent portion into the notch groove, and heat-welding the tatami mat. 4. A method of manufacturing a tatami mat by thermally welding a tatami mat made of a thermoplastic material to one surface of a plate-shaped tatami mat made of a thermoplastic material. A method of manufacturing a tatami mat, comprising forming a cutout groove, bending a peripheral portion of a tatami surface, inserting the cutout groove into the notch groove, and heat-welding the tatami mat.