JPH0454259Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a tatami mat used as a flooring material for a building, and particularly to a tatami mat suitable as a flooring material for a concrete building.

(Prior Art) Conventionally, it is known that the main part of tatami mats, the tatami floor, is made of rice straw arranged in layers, and tatami mats are made of foamed synthetic resin material.

The former type of tatami, whose tatami floor is made of rice straw, has poor water resistance. For this reason, moisture builds up during the rainy season between the concrete slab and tatami mats that make up the floor slab of a concrete building, or when a floor slab is heated and has a heating source installed for floor heating, and after the heating is stopped. In order to prevent tatami floors from rotting due to condensation on the floor slabs caused by temperature differences, tatami mats are laid with a space for ventilation between them and the floor slabs. However, this ventilation space affects the size of the ceiling height of the building. Generally, rooms with large ceiling heights are considered to be more livable than those with small ones, but if the height dimension for the ventilation space is set to a large ceiling height, the construction cost will increase significantly. .

On the other hand, since the latter tatami floor is made of a water-resistant foamed synthetic resin material, it is not possible to lay it directly on the floor slab made of a concrete slab without creating a ventilation space between it and the floor slab. This is possible, and thereby the problem of ceiling height can be solved.

However, the tatami floor made of foamed synthetic resin material,
This has the disadvantage that when external forces such as impact loads are repeatedly applied, the elastic resilience decreases over time, causing so-called fatigue during long-term use. It is not sufficient as a substitute for tatami. Further, the foamed synthetic resin material has poor air permeability and high heat insulation properties, so in the case of a floor slab in which a heating source is embedded for floor heating, the heat of the floor slab does not reach the tatami surface. For this reason, it is not suitable as a tatami mat to be laid on the floor slab equipped with radiant floor heating.

Furthermore, the tatami mat, which is the covering material for the tatami floor, is usually made of a woven strawberry woven strawberry, and the tatami mat is firmly sewn to the tatami floor so as to cover the surface and side surfaces of the tatami floor. For this reason, special skills are required to change or replace the tatami mats. However, if repairs and replacements of tatami mats could be easily carried out without requiring special techniques, it would be possible to carry out these repairs at a more appropriate time.

(Purpose of the invention) An object of the invention is to provide a tatami mat that can eliminate the drawbacks of tatami mats having a tatami bed made of rice straw and a tatami bed made of foamed synthetic resin.

Still another object of the present invention is to provide a tatami mat whose tatami surface can be easily replaced.

(Structure of the invention) The present invention forms a tatami floor from a large number of elastic particles that are glued together with a large number of gaps that communicate with each other, and also makes the tatami surface removable through a bonding means. It is characterized by what it did.

(Operations and Effects of the Invention) According to the tatami according to the present invention, the tatami floor itself is in good condition because the numerous voids mutually defined by the many elastic particles constituting the tatami floor are in communication with each other. Has breathability. For this reason, when tatami are laid directly on the floor slab of a building made of concrete slabs,
Moisture that may occur between the floor slab and the tatami mat is released into the room through the gap. In addition, this breathability makes it possible to prevent condensation from forming due to temperature differences during and after heating the floor slab in which a heat source such as a heating wire is embedded for radiant floor heating. Further, when an external force such as an impact load on a tatami floor is applied, the individual voids at the location where the external force is applied and in the vicinity thereof form spaces that allow elastic deformation of individual particles. For this reason, the tatami floor has good elasticity and does not wear out even after long-term use. Furthermore, the large number of voids and the large number of elastic particles provide the tatami floor with heat insulation and sound insulation properties.

In addition, according to the present invention, since the tatami facing is connected to the tatami bed using a joining means such as a hook-and-loop fastener, it is possible to connect the tatami facing to the tatami floor at an appropriate time depending on the degree of damage to the tatami facing, and also for ordinary people who do not have special skills. A person can replace the tatami mat very easily. moreover,
Tatami covers are not limited to the most widely used woven straw mats, but can also easily be made into carpets. Therefore, it is possible to reduce sanitary harm such as the occurrence of pests caused by carpeting on tatami mats having a tatami floor made of rice straw and a tatami surface made of woven straw.

(Embodiments) The features of the present invention will become clearer from the following description of the illustrated embodiments.

Referring to FIG. 1, the tatami mat 10 according to the present invention is
The tatami floor 12 is made up of a large number of elastic particles 14 such as rubber chips or cork chips, which are glued together with a large number of gaps 16 (see FIG. 2) communicating with each other.

As shown in FIG.
The front and back surfaces of the tatami floor 12 and the four side surfaces connected thereto are open to the atmosphere. When the tatami mat 10 is placed directly on the floor slab 18 such as a concrete slab, moisture may be generated between the tatami mat 10 and the floor slab, especially during the rainy season, but this moisture is absorbed by the voids 16 that communicate with each other. It is released into the atmosphere, that is, indoors.

In addition, a heat source such as heating wires may be installed in the floor slab for radiant floor heating. When arranging the tatami mat 10 of the present invention on such a floor slab, since the tatami floor 12 has air permeability as described above, the tatami mat 10 of the present invention can be placed on the floor slab, which is likely to occur during natural cooling after heating of the floor slab is stopped. Condensation on the plate is prevented. This also applies to floor slabs in which cooling sources are provided for radiant floor cooling. Furthermore, when an impact load is applied to the tatami mat 10 due to, for example, walking, the individual particles 14 located directly under the load point and its surroundings are elastically deformed toward the individual voids 16 defined by these particles. This elastic deformation cushions the impact. Furthermore, the large number of particles 14 and the large number of voids 16 provide the tatami floor 12 with good heat insulation properties.
Provides sound insulation, etc.

The size of the voids, the shock absorption properties, etc. vary depending on the type, particle size, hardness, etc. of the granular material 14 used, and these factors vary depending on the location where the tatami is used,
For example, it can be set in consideration of residential use, accommodation use, etc.

The illustrated tatami table 2 attached to the surface of the tatami floor 12
0 is made of a loincloth made of woven straw, and has the same planar shape as the tatami floor 12. Tatami Omote 20
can be replaced with a carpet.

The tatami floor 12 and the tatami facing 20 are joined to each other via a connecting means consisting of a hook-and-loop fastener 22, which is well known in the art. A pair of connecting members constituting the hook-and-loop fastener 22, that is, a narrow tape portion 22a in which many fine loop-like things are densely grown and a tape portion 22b in which many fine hook-like things are densely grown.
are arranged along the periphery of the front surface of the tatami floor 12 and the periphery of the back surface of the tatami facing 20, and are fixed by sewing, gluing, or the like. Therefore, by pressing the peripheral edge of the tatami facing 20 toward the tatami floor 12 and by applying a peeling force to it,
It can be attached to and removed from the tatami floor 12 easily and quickly, and without requiring special techniques. Furthermore, if a plurality of types of tatami mats 20 are prepared, such as those made of lintel and those made of carpet, they can be replaced according to the season.

It goes without saying that the tape part 22a can be attached to the tatami facing 20 and the tape part 22b can be attached to the tatami floor 12 instead of the illustrated example. Also,
The hook-and-loop fastener 22 can be disposed not only at the periphery but also at a portion surrounded by the periphery.
Furthermore, instead of the illustrated example, the tatami surface 20 has a size that can cover the surface and side surfaces of the tatami bed, and corresponds to each corner defined by the mutually adjacent side surfaces of the tatami bed 12. It can have a shape with cuts made at certain points. In this case, both tape parts can be attached to the back surface of the tatami floor 12 and the folded edge of the tatami surface 20 that is bent to face the back surface so as to face each other. Furthermore, instead of using the surface fastener 22 as a means for connecting the tatami floor and the tatami surface,
For example, they can be hooks, snaps, etc., which have concave and convex shapes that can be engaged with each other. Furthermore, if necessary, a tatami hem (not shown) may be arranged along the long side of the tatami facing 20 and attached to the tatami facing 20 by gluing, sewing, or the like.

In the example shown in FIGS. 1 and 2, the tape portions 22a and 22b are connected to the surface of the tatami floor 12 and the tatami surface 20.
Tatami floor 12 will be raised on the back side of the
It is undeniable that a gap will be created between the tatami mat and the tatami mat 20. As shown in FIG. 3, the hook-and-loop fastener 22 is attached to the tatami floor 12 in such a way that one tape part 22a and the other tape part 22b in an engaged state are flush with the surface of the tatami floor 12. This can be resolved by embedding the problem.

The tatami floor 12 is made by spreading a mixture of a large number of elastic particles and an adhesive made of a liquid resin that hardens at room temperature, such as urethane resin, on a box-shaped formwork (not shown). It can be formed by demolding after curing. The amount of adhesive is the minimum amount sufficient to bond the individual particles together.
As a result, a large number of voids that communicate with each other can be created between a large number of granular materials that are bonded to each other. The mixing weight ratio of the adhesive to the granules is particularly preferably 1/8.

The hook-and-loop fastener 22, in which a pair of tape parts are engaged with each other, is attached to the tatami floor 12 by one of the tape parts.
In order to embed the mixture so that it is exposed on the surface of the mold, before putting the mixture into the mold, both tape parts 22a and 22b in an engaged state are laid in the mold, and the mixture is poured into the mold. After being added, the mixture may be spread evenly with a relatively large pressing force. At the time of demolding, one tape portion is fixed to the molded body that will become the tatami floor 12 via the adhesive in the mixture. After demolding, the other tape portion exposed on the surface of the molded body is peeled off from the one tape portion, and then the tape portion is fixed to a material to be used as the tatami facing 20.

FIG. 4 shows another example of the tatami mat of the present invention. This tatami 2
4 and the tatami 10 shown in FIGS. 1 to 3 reside in the connecting means for connecting the tatami facing 20 to the tatami floor 12. This connecting means is the tatami 24
It consists of a pair of tatami edges 26 arranged on at least one of a pair of short sides and a pair of long sides (However, in FIG. 4, the pair of tatami edges 26 arranged on the pair of long sides are Only one side is shown).

The tatami edge 26 includes a core material 28 having an angled cross-sectional shape, and a belt-shaped fabric 30 that covers the outside of the core material.
It consists of The core material 28 is preferably made of a flexible material such as vinyl chloride. In addition, the fabric 30 has both side edges 30a and 30b along both sides 28a and 28b of the core material 28.
8 are each folded from the outside to the inside. One side edge 30a of the fabric 30 is connected to the tatami floor 12.
The tatami facing 20, which has a rectangular planar shape that is almost the same as that in plan view, is sewn to one side 28a of the core material with threads 32 while being in contact with the surface side of the edge on the long side of the tatami cover 20. There is. Further, the other side edge 30b of the fabric is sewn to the other side 28b of the core material with a thread 34. Note that both ends of the core material 28 are covered with fabrics 30 as necessary.

The tatami facing 20 is placed on the tatami bed 12 and each tatami edge 26 is
When arranged so that the inner sides of both sides thereof face the surface and side surfaces of the tatami bed 12 that define the opposing corners of the tatami bed 12, each tatami mat corresponding to the other side 28b of the core material 28 A side portion of the edge 26 frictionally engages with a side portion of the tatami floor 12. This frictional engagement couples the tatami facing 20 to the tatami floor 12. It is desirable that the spacing between the opposing tatami edges 26 is set so as to provide tension to the tatami facing 20 when the tatami facing 20 is joined to the tatami floor 12. The combined state of the tatami bed 12 and the tatami face can be easily released by pulling up each tatami edge 26 or by rotating both tatami edges 26 toward the other side.

In order to protect or reinforce the corner portion of the tatami floor 12, it is desirable to arrange a strip plate 36 made of metal, wood, plastic, etc. along the corner portion of the tatami floor 12. The illustrated strip plate 36 is the core material 2
It is made of the same material as 8 and is embedded in the tatami floor 12 so that its upper surface and one side surface are exposed to the surface and side surface of the tatami floor 12. Note that the tatami mat 12 may be made of carpet instead of knitted straw, as in the example described above. Further, it is desirable that the thickness of the tatami edge 26 be 2 to 3 mm. Furthermore, a second coupling means can be attached. As the second coupling means, for example, a concave shape (not shown) embedded between the granules 14 of the tatami floor 12, passing through the strip plate 36 upward and opening at the upper surface of the strip plate 36; It is possible to use a fastener such as a snap that is fixed to one side 28a of the core material 28 of the tatami edge and has a convex shape (not shown) that extends toward the concave shape and can be engaged with the concave shape. can. The second coupling means strengthens the coupling between the tatami floor 12 and the tatami facing 20.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a tatami mat according to the present invention, Fig. 2 is a cross-sectional view of the tatami mat, and Fig. 3 is a partial cross-sectional view of an example in which hook-and-loop fasteners are embedded in the surface of the tatami floor so as to be exposed.
FIG. 4 is a partial perspective view of another example of a tatami mat. 10, 24... Tatami, 12... Tatami floor, 14... Elastic granules, 16... Voids, 18... Concrete slab (floor slab), 20... Tatami facing, 22... Surface fastener (joining means), 26... Tatami edge (joining means).

Claims (1)

[Claims for Utility Model Registration] (1) A tatami floor made of a large number of elastic granules bonded to each other with a number of gaps communicating with each other, a tatami face, and a tatami face that is removably attached to the tatami bed and the tatami face. A tatami mat comprising a joining means for joining. (2) The tatami mat according to claim 1, wherein the coupling means comprises a pair of coupling members that can be engaged with each other. (3) The tatami face has a planar shape that is substantially the same as the planar shape of the tatami bed, and the pair of coupling members are attached to the front surface of the tatami bed and the back surface of the tatami bed so as to face each other. The tatami according to claim 2 of the utility model registration claim. (4) The tatami mat has a bent edge facing the back surface of the tatami mat, and the pair of coupling members are attached to the back surface of the tatami mat and the folded edge of the tatami mat facing each other. The tatami according to claim 2 of the utility model registration claim. (5) The tatami face has a planar shape that is substantially the same as the planar shape of the tatami floor, and the connecting means is at least a pair of opposing tatami edges having an angled cross-sectional shape, and the connecting means is at least a pair of opposing tatami edges having an angled cross-sectional shape. Utility model registration claim No. 1, comprising a tatami edge, to which both opposing edges of the tatami face are fixed to one side, and the other sides of both tatami edges can be respectively engaged with the sides of the tatami floor. Tatami as described in Section 1. (6) The tatami mat according to claim 5, wherein the tatami edge comprises a core material having an angled cross-sectional shape and a fabric covering the core material. (7) The tatami mat according to claim 6, wherein the core material is made of vinyl chloride. (8) The said tatami surface is made of a woven strawberry.
The tatami mat described in item 1 of the claims for utility model registration. (9) The tatami mat according to claim 1 of the utility model registration claim, wherein the tatami mat surface is made of carpet.