JPH094191A - Tatami mat - Google Patents

Abstract

PURPOSE: To provide a sanitary lightweight tatami mat by filling a hollow part of a honeycomb plate, whose over-part is left open, with a humidity conditioning agent so that a core is formed, and installing a facial material on the core through a sheet having a cushioning property and permeability. CONSTITUTION: A honeycomb structure plate 1 is formed from regenerated pulp, synthetic resin, metal, etc., in such a way that the over-part is left open, and a hollow part of this honeycomb plate 1 is filled with a humidity conditioning agent such as silica gel, zeolite, bentonite, etc., so that a core for a tatami mat is formed. On this core 1, a sheet 3 is laminated consisting of a felt, etc., having cushioning property and permeability, and thereover a facial material 4 consisting of rush is laminated followed by fixation by rims 5 so that an intended lightweight tatami mat is completed, which should present touch feeling of a mat of straws. In this way, generation of fungi, mite, etc., can be suppressed, and corrosion of the facial material be precluded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvements in tatami mats laid on buildings such as houses.

[0002]

2. Description of the Related Art In the conventional tatami mat, the surface of a tatami floor member, which is a core material obtained by stabbing rice and wheat stalks with so-called straw stabbed with threads, is covered with a tatami mat woven from igusa The one constructed is generally used, and a floor such as a Japanese-style room of a house is formed by laying the tatami mat on a wooden board, that is, a rough floor.

By the way, in the above-mentioned tatami mat, since straw is used as a raw material for the tatami mat floor member, it tends to be moistened by absorbing moisture under the floor of the house or in the room, which is not hygienic. However, there is a problem that harmful insects are likely to occur. Further, since the tatami mat has a heavy weight, a great deal of labor is required for drying work such as sun drying, and it has been pointed out that the tatami mat is inconvenient to handle. Further, in recent years, there has been a problem that it is difficult to obtain the raw material straw itself, and the production thereof is not easy due to a shortage of tatami craftsmen.

Therefore, in recent years, a soft fiber board which can be industrially mass-produced by replacing the straw as a tatami mat member,
Alternatively, a foamed resin board, and further a tatami flooring member using a soft fiber board and a foamed resin board in combination have been devised, and a tatami having a structure in which the surface of the tatami flooring member is covered with a tatami mat has appeared.

Such a tatami mat has a merit that its weight is lighter than that of a conventional tatami mat using a straw floor, is easy to handle, is easy to industrialize, and can be mass-produced. .

However, even in the above-mentioned tatami mat, the tatami mat floor member formed of a soft fiber board or a foamed resin board does not have water absorption and therefore does not become watery, but its surface is covered. The moisture that has passed through the tatami mat stays like a puddle between the tatami mat and the tatami floor member, which is still unsanitary, and there is still a problem that harmful insects are likely to occur.

The present invention has been made in view of the problems of the above-mentioned conventional tatami mats, and its purpose is for the next generation, which is excellent in lightness and productivity as well as moisture resistance. To provide a revolutionary tatami mat.

[0008]

In order to achieve the above-mentioned object, the present invention uses a core material having a plurality of open hollow upper parts as a tatami mat, and the hollow part of the core material is prepared. A tatami mat was filled with a moisturizing agent, and a tatami-mat table was placed above it.

Further, according to the present invention, the core material is a honeycomb structure plate having an open upper surface, and a tatami mat in which each core hollow portion of the honeycomb structure plate is filled with the humidity control agent.

Further, according to the present invention, a tatami mat having a cushioning and air-permeable sheet interposed between the core material and the tatami mat is provided.

[0011]

According to the above-mentioned tatami mat of the present invention, since the core material in which a plurality of hollow portions having open upper surfaces are formed is used as the tatami floor, the presence of the hollow portions reduces the weight of the core material. The weight of the entire tatami mat can be reduced. Further, according to the present invention, since the hollow portion of the core material is filled with the humidity control agent,
Since the humidity control agent absorbs moisture that has passed through the tatami mat and keeps the tatami mat in a dry state, generation of mold, mites and the like can be suppressed and decay of the tatami mat can be prevented.

If a honeycomb structure plate having an open upper surface is used as the core material having the hollow portion,
Since the honeycomb structure plate is an assembly of cells in the shape of a short hollow cylinder, it is strong against a load acting from the up and down direction, and the hollow portion ratio is high, so that the weight can be further reduced,
The amount of the above-mentioned humidity conditioner filled in the hollow portion increases, and the tatami mat has a higher moisture-proof effect.

Furthermore, if a tatami mat having a cushioning and air-permeable sheet is interposed between the core material and the tatami mat, the moisture-proof effect obtained by filling the hollow part of the core material with a humidity control agent is impaired. It is possible to provide a tatami mat with a higher commercial value without having to feel the texture of a traditional tatami mat using a straw floor.

[0014]

Embodiments of the tatami mat according to the present invention will be described below with reference to the drawings.

First, the tatami mat shown in FIG. 1 shows a first embodiment of the tatami mat according to the present invention. In FIG. 1, 1 is a honeycomb structure having an open upper surface which is the core material of the tatami mat. It is a plate. The honeycomb structure plate 1 is made up of a planar assembly of core cell walls 1a forming many cells in the shape of a short hollow cylinder, and core hollow portions 1b formed thereby.

The core cell wall 1a of the honeycomb structure plate 1 is
As shown in the enlarged cross-sectional view of FIG. 2, the central portion is formed into a slightly thin curved wall, which makes the honeycomb structure plate 1 strong in strength against a vertical load, and
The volume of each core hollow portion 1b is increased.

The honeycomb structure plate 1 is made of a wood-based material (recycled pulp as a main raw material).
It may be formed of other materials such as synthetic resin or metal. The shape of the cell formed by the core cell wall 1a can be various shapes such as a hexagonal prism shown in the drawing, a square prism or a corrugated prism.

Each core hollow portion 1b of the honeycomb structure plate 1 is filled with a humidity control agent 2 as shown in the figure. Examples of the humidity conditioner 2 include silica gel which is generally used, zeolite which has been activated at a temperature of 400 to 800 ° C., clay mineral such as bentonite or montmorillonite as a main component, or acid clay, and the like. For example, zonotolite-based calcium silicate can be used.

On the upper surface of the honeycomb structure plate 1,
A sheet 3 having cushioning properties and breathability,
For example, a so-called felt, which is made into a sheet by filling wool or the like, or a thin straw is laminated. The sheet 3 made of felt or the like is laminated in order to bring a touch feeling close to that of a conventional straw floor, and a thickness of several millimeters is sufficient.
Further, by using the air-permeable sheet 3, the humidity control agent 2 filled in each core hollow portion 1b of the honeycomb structure plate 1
However, it is designed to absorb indoor humidity.

A tatami mat 4 is further laminated on the upper surface of the sheet 3, and the tatami mat 4 is fixed to the tatami floor of the honeycomb structure plate 1 by a rim 5. As the above-mentioned tatami mat 4, woven stalks of commonly used grass are preferable in terms of the feel and scent.

Since the tatami mat according to the present invention constructed as described above uses the honeycomb structure plate 1 having a plurality of core hollow portions 1b as a tatami floor, it is strong in strength against a vertical load. It becomes a thing, and its thickness can be reduced,
The presence of the hollow core portion 1b enables the weight of the core material to be reduced, and the entire tatami can be made lightweight and thin. Further, since the core hollow portion 1b of the honeycomb structure plate 1 is filled with the humidity control agent 2, the humidity control agent 2 absorbs the moisture that has passed through the tatami mat 4 and keeps the tatami mat dry, It is possible to suppress the occurrence of ticks and the like and prevent the tatami mat 4 from decaying. Further, since the sheet 3 having cushioning properties and air permeability is laminated between the honeycomb structure plate 1 and the tatami mat 4, the core hollow portion 1b of the honeycomb structure plate 1 is filled with the humidity control agent 2. The tactile sensation can be made closer to that of a conventional tatami mat using a straw floor without impairing the moisture-proof effect.

Next, another embodiment of the tatami mat according to the present invention will be described with reference to FIG. 3. The same members and parts as those of the first embodiment shown in FIG. 1 are the same as those of FIG. The same reference numerals are given to the members and portions in FIG. 3, and the description thereof will be omitted.

In the tatami mat shown in FIG. 3, the tatami mat is used not with the honeycomb structure plate 1 alone but with other lightweight boards 6 such as soft fiber boards or foamed resin boards.
The other lightweight board 6 such as the soft fiber board or the foamed resin board is attached to the lower surface side of the honeycomb structure board 1 as illustrated.

By using the tatami having the above structure, the tatami having the light weight and the moisture proof described in the first embodiment can be obtained, and the soft fiber board or the foamed foam attached to the lower surface side of the honeycomb structure plate 1 can be obtained. By adjusting the thickness of another lightweight board 6 such as a resin board, the thickness of the entire tatami mat can be made the same as that of a conventional tatami mat (50 to 55 mm) using a straw floor. A tatami mat that can be easily replaced with a tatami mat using a straw floor.

Although the embodiments of the tatami mat according to the present invention have been described above, the present invention is not limited to these embodiments, and the technical idea of the present invention, that is, a plurality of tatami floors having an open upper surface. The present invention includes all tatami mats in which a core material having a hollow part is used, the hollow part of the core material is filled with a humidity control agent, and a tatami mat is arranged above the tatami mat.

That is, for example, the hollow portion formed in the core material is the hollow core portion of the honeycomb structure plate 1 as in the above embodiment.
It does not need to be 1b, and may be one in which a plurality of holes are simply bored in the upper surface of the member serving as the core material. Further, in the hollow portion such as the hole, if the upper surface is open, that is, not airtight, the humidity adjusting agent filled in the hollow portion can perform a hygroscopic effect, and thus the upper surface of the hollow portion as in the embodiment. The entire side does not have to be open.

[0027]

As described above, according to the tatami mat of the present invention described above, since the core material is used as the tatami floor, a plurality of hollow parts having open upper surfaces are used. It has the effect of reducing the weight of the tatami mat and reducing the weight of the tatami mat. Further, according to the present invention, since the hollow portion of the core material is filled with a humidity control agent, the humidity control agent absorbs moisture or the like that has passed through the tatami mat and keeps the tatami mat dry. It is possible to suppress the occurrence of ticks and the like and to prevent the tatami mat from decaying.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a first embodiment of a tatami mat according to the present invention.

FIG. 2 is a cross-sectional view of the core material shown in FIG.

FIG. 3 is a sectional view showing another embodiment of the tatami mat according to the present invention.

[Explanation of symbols]

 1 Honeycomb structure plate 1a Core cell wall of honeycomb structure plate 1b Core hollow part of honeycomb structure plate 2 Humidity adjusting agent such as silica gel 3 Sheet such as felt 4 Tatami mat 5 Edge 6 Other lightweight board such as foamed resin board

Claims (4)

[Claims] 1. A tatami mat, wherein a core material having a plurality of hollow portions having an open upper surface is used, the hollow portion of the core material is filled with a humidity control agent, and a tatami mat is arranged above the core material. Tatami mat. 2. The tatami mat according to claim 1, wherein the core material is a honeycomb structure plate having an open upper surface, and the humidity controlling agent is filled in each hollow part of the core of the honeycomb structure plate. . 3. The core material is a honeycomb structure plate having an open upper surface, and the core cell wall of the honeycomb structure plate is formed as a curved wall having a slightly thin central portion. The tatami mat according to claim 1 or 2. 4. A tatami mat according to claim 1, 2 or 3, wherein a cushioning and breathable sheet is interposed between the core material and the tatami mat.