JP2750285B2 - Tatami floors and tatami mats - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a tatami floor, and
About tatami. In particular, the present invention relates to tatami floors and tatami mats suitable for removing moisture underneath tatami floors. Further, the present invention relates to a tatami mat suitable for laying on a floor structure provided with floor heating equipment, and a tatami floor suitable for use therein.

[0002]

2. Description of the Related Art A tatami floor using a floor material obtained by squeezing straw or the like has appropriate elasticity, air permeability and moisture retention. However, when tatami is laid directly on the concrete floor of a new building due to its moisturizing properties, the moisture contained in the concrete is retained on the tatami floor and cannot be diffused from the surface of the tatami mat. There is a problem that mold is generated and the tatami floor is rotten. Therefore, in order to lay a tatami on a concrete floor or the like, the joists were arranged on the concrete floor, and a floor board was laid thereon, and then the tatami was laid. Even with such a construction method, it is difficult to sufficiently disperse the moisture in the space under the tatami mat, and furthermore, a space is created below the tatami floor, so that in a high-rise apartment or condominium, the height of the whole building becomes high. However, there has been a problem that construction costs are high.

Further, as a method of heating a house or the like, there is a so-called floor heating method of heating from below the floor using a heat source disposed under the floor. Such a floor heating system has the advantage that the air in the room can be kept clean because there is no need to place a heat source in the room, and a large convection of air is generated by heating from the floor surface, resulting in high heating efficiency. As a result, it has become popular in ordinary homes.

[0004] By the way, the floor heating method uses a relatively thin flooring material such as flooring or carpet flooring in a Western-style room, in which heat from a radiator provided under the floor is quickly transmitted to the floor surface. The surface temperature and the rise at room temperature are good and convenient. However, in the case of a Japanese-style room with tatami mats, it takes a considerable amount of time for the heat generated at the lower surface of the tatami to reach the surface and raise the room temperature because the tatami mats include a thick tatami floor with high heat insulation. Did not expect quick heating. Furthermore, since the heat diffusion was small, it was difficult to uniformly heat the entire surface, and floor heating was basically unsuitable for Japanese-style rooms.

[0005] Nevertheless, in order to use floor heating in a Japanese-style room,
Attempts have been made to make the tatami floor made of straw or resin thinner to make the whole tatami thinner, but in order not to lose the elasticity that tatami should have, there is a limit to thinning, and improvement in thermal conductivity The effect was small.

[0006] In addition, particularly for a tatami mat using a resin tatami floor, there is an attempt to form a large number of through holes in the tatami floor and to guide warm air to the front side through the through holes on the lower surface of the tatami mat. Then
Since the heat radiated from the floor structure under the tatami to the perforated part of the tatami floor is convected through the perforated hole and rises to the front side of the tatami without difficulty,
Much better thermal conductivity is obtained than by simply thinning the tatami mats. However, in the conventional method, the tatami floor portion between the through-holes was basically left as a slow heat transfer portion, so that heat was easily trapped in this portion, and the heat conduction of the tatami mat as a whole was continued. Speed and efficiency were still inadequate.

[0007]

Therefore, the present invention provides an air layer on the lower surface of a tatami floor while maintaining an appropriate elasticity, and makes the air layer communicate with the front side of the tatami mat to improve air circulation. It aims to provide a tatami floor.

Further, an object of the present invention is to provide an air layer on the lower surface of a tatami floor while maintaining an appropriate elasticity, and to communicate the air layer to the front side of the tatami mat. It is an object of the present invention to provide a tatami floor heating tatami that can transmit generated heat to the front side of a tatami mat with a high heat conduction speed and a high transfer efficiency, and a tatami floor constituting such a tatami mat.

Another object of the present invention is to provide a tatami for floor heating capable of transmitting heat uniformly over the entire surface of the tatami.

[0010]

The tatami floor according to the present invention comprises:
It is made of a tatami flooring material having an appropriate elasticity, and a large number of through holes penetrating the tatami floor and a plurality of grooves communicating the upper ends of the through holes are provided on the surface of the tatami floor. Further, a plurality of projections are provided on the back surface of the tatami floor to protrude downward from positions away from the through holes.

Further, the tatami floor for floor heating according to the present invention is
It is formed of a material having moderate elasticity, has a large number of through-holes, and has a plurality of grooves on the upper surface that communicate the upper end of each of the through-holes with each other. Provided a plurality of projections protruding downward from positions away from the respective through holes.

A tatami floor for floor heating according to the present invention has a tatami floor having an appropriate elasticity, a tatami table covering at least the upper surface of the tatami floor, and the tatami floor and the tatami table are integrally held at their peripheral portions. And a locking means, wherein the tatami floor has a large number of through holes and an upper surface thereof has a plurality of grooves communicating with upper ends of the respective through holes. Further, a plurality of protrusions are provided on the lower surface of the tatami floor to protrude downward from positions away from the respective through holes.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION A tatami floor according to the present invention is, for example, a rectangular portion having a standard size of a tatami mat and is made of a material having a moderate elasticity. The resilient material is preferably formed of a resin foam, for example, a high density styrofoam or polystyrene foam. In this tatami floor, a plurality of through-holes are formed vertically and horizontally, preferably at a predetermined pitch, penetrating in the thickness direction, and on the upper surface thereof, a plurality of grooves are formed to mutually communicate the upper end of each through-hole. . In addition, on the lower surface of the tatami floor,
A plurality of projections projecting downward between the through holes were provided.

Preferably, the groove provided on the upper surface of the tatami floor and communicating with the upper end of each through-hole communicates with any one of the orthogonal sides of the tatami floor at an angle of 90 degrees or less. A first direction groove connecting the upper ends of the plurality of through-holes arranged in one direction, and a second direction intersecting at 90 degrees or less with another side orthogonal to the side.
And a groove in the second direction connecting the upper ends of the plurality of through-holes arranged in the direction of. The groove in the first direction and the groove in the second direction intersect at the position of each through-hole. The first direction and the second direction are:
They may be orthogonal or oblique to each other.

Further, minute irregularities can be provided on the upper surface of the tatami floor. The unevenness is formed by repeating the unevenness in a direction perpendicular to the direction of the eyes of the tatami mat to form a shallow groove in the direction along the direction of the eyes of the tatami mat, and is formed in the first direction and the second direction. It is provided continuously or discontinuously between the provided grooves.

The projection provided on the lower surface of the tatami floor protrudes downward from a position other than the position where the through hole is formed, and is provided at the center of each area surrounded by the grooves in the two directions provided on the upper surface of the tatami floor. Preferably, it is a corresponding point.

Further, the tatami mat according to the present invention is formed by covering the upper surface of the tatami floor having the above structure with a tatami mat. It is preferable to insert an anti-slip mat between the tatami mat and the tatami mat floor. In addition, of the tatami mat and the anti-slip mat, at least the tatami mat covers not only the upper surface of the tatami floor but also the entire side edge of the short side and a part of the lower surface, and is folded along the side edge and the back surface of the tatami floor. After that, it is preferable to have a size that is integrally held on the tatami floor.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a state in which a tatami mat using a tatami floor according to the present invention is directly laid on a concrete floor subjected to a waterproof finishing treatment, and FIG. The cross section is shown by the line. FIG. 2 is a top view of the tatami floor, and FIG. 3 is a bottom view of the tatami surface. FIG. 4 is an enlarged sectional view taken along line BB of FIG. As shown in FIG. 1, a tatami mat 100 according to the present invention has an anti-slip mat 20 laid on the upper surface of a plate-like tatami floor 10 and further covered with a tatami mat 30 from above. After folding back the side edge of the tatami floor 10 and the edge of the back side, the tatami mat 40 is sewn from the top of the tatami table 30 so that the tatami floor 10,
It is formed by holding the anti-slip mat 20 and the tatami mat 30 together.

The tatami mat 100 is laid directly on a concrete floor structure 50 to which a waterproof finishing process 51 has been applied.

The tatami floor 10 has a tatami mat standard size, for example, 88 ×
It is composed of a 176 cm square plate-like flooring material 11 having a thickness of about 1.8 cm. This flooring material 11 can be formed of high-density styrene foam having moderate elasticity. Needless to say, the dimensions and materials of the flooring 11 are merely examples, and can be changed as appropriate.

A large number of through-holes 12 are formed in the flooring 11 in the thickness direction thereof.
Numerals 2 are arranged in a zigzag pattern at a predetermined pitch, for example, 8 cm, in a direction parallel to the sides 15-1 and 15-2 of the side surface of the flooring material 11. The diameter of each through hole 12 is suitably about 6 mm. The upper and lower openings of the through-hole 12 are tapered so as to increase the air intake area and improve the air flow, and it is difficult for the end of the through-hole 12 of the flooring 11 to be chipped. As a result, the possibility that the through-hole 12 is clogged due to chipping of the end is reduced.

A plurality of grooves 13 are formed on the upper surface of the flooring 11. These grooves 13 communicate with the upper ends of the through holes 12 arranged in two oblique directions and extend in a straight line, respectively, and are orthogonal to each other in the adjacent through holes 12. Further, parallel grooves 13 are provided in the periphery 15-1 and 15-2 of the floor material 11 connecting the peripheral through holes 12. The width of each groove 13 is about 4 in this embodiment.
mm and the depth is about 3 mm. These grooves 13
Is provided in a direction intersecting each side 15-1, 15-2 of the floor material 11 at 45 degrees.

Further, fine projections 16 can be provided on the upper surface of the tatami floor 11, as shown in FIGS. By repeatedly providing the ridges 16 in a direction perpendicular to the direction of the eyes of the tatami table 30, a shallow groove 17 in the direction along the direction of the eyes of the tatami table is formed. And between the grooves 13 provided in the second direction, continuously or discontinuously.

On the back surface of the flooring 11, a plurality of projections 14 projecting downward from positions away from the respective through holes 22 are integrally formed. Each projection 14 is located at a point corresponding to the center of each area surrounded by the two-way grooves 13 provided on the surface of the flooring 11. The height and diameter of the projection are about 3 mm and about 10 mm, respectively. These projections make a gap G between the tatami mat 10 and the floor structure 50 when the tatami mat 10 is placed on the floor structure 50 and abuts on the waterproof treatment layer 51 at the tip thereof. The gap G not only plays an important function in terms of air flow, as described in detail later, but also has a function of adding moderate elasticity to the tatami mat 10. Further, the protrusions located in the peripheral portion of the floor material 11 among the protrusions 14 are not formed integrally with the floor material 11, and a protrusion member separately provided after manufacturing the tatami 100 is appropriately formed with an adhesive or an adhesive tape. By adopting a structure in which the fixing means is used to attach the tatami mat, it is possible to prevent the sewing operation of the tatami mat using the machine made by Oi Seisaku from becoming an obstacle.

Anti-slip mat 20 provided on flooring 11
May be, for example, a non-slip material laid under a carpet, and is a breathable material provided with a large number of fine holes connecting the front and back, and is preferably a material with little slip. It is more preferable that the adhesive is applied to the adhesive. The anti-slip mat 20 can add appropriate elasticity to the tatami mat, prevent the tatami mat 30 from slipping, and prevent the tatami mat from being damaged.

A tatami mat using such a flooring 11 has a gap G formed by a projection 14 provided on the lower surface thereof and a large number of through holes 12 penetrating the flooring 11, so that Since there is an air flow path between G and the tatami mat,
Even if there is moisture or moisture in the gap G, the moisture or moisture can be released by circulating the moisture or moisture-containing air through the tatami mat. Furthermore, since the groove 13 connecting the upper end of the through hole 12 is provided on the surface of the flooring material 11, the air flowing from the back surface is discharged from the front surface of the tatami mat 30 via the groove 13, so that the gap G on the back surface is provided. And good air circulation.

Further, the provision of the shallow grooves 17 on the surface of the flooring 11 can prevent the tatami mat 30 from moving in the longitudinal direction without the slip prevention mat 20 interposed therebetween.

Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 6 is a partial longitudinal sectional view when the tatami mat according to the present invention is laid on a floor structure provided with a floor heating device. FIG.
As shown in the figure, a floor heating tatami 100 having a structure similar to that shown in the first embodiment is laid on a floor structure 60 provided with a floor heating device 70. That is, the floor structure 60 is composed of a floor plate 63 fixed to a joist 62 fixed on an enlargement 61, and a floor heating device 70 is installed below the floor plate 63.
The floor heating device 70 is composed of a heating element in which a heating wire 72 is located at the center of a pipe 74 and a surrounding area is filled with a heat storage material 73 such as glass powder inside a box 71 made of a heat insulating material and having an open top. ing. Heat from the floor heating device 70 generated by energizing the heating wire 72 is radiated through the floor plate 63 into the gap G below the tatami mat 100. The air heated in the gap G by this heat reaches the surface of the flooring 11 via the plurality of through holes 12 by convection. A part of the warmed air is heated from the eyes of the tatami mat in addition to warming the tatami mat 30 at the upper part of the through-hole 12, and the remaining air flows into the groove 13 to warm the tatami mat on the groove 13 and from the tatami mat. Dissipates and warms the room evenly.

As a result, not only is the tatami table 30 warmed up quickly over the entire surface, but also the heat from the floor heating device 70 is carried into the room by convection of the air, so that the floor heating rises quickly and is uniform over the entire surface of the tatami. Can raise the temperature. The floor heating device was explained using an electric type in which a heating wire was arranged in a pipe, but a floor heating system in which the heating wire was routed directly to the floor, a hot water type floor heating in which hot water was supplied to a pipe, or a heated floor heating device. Pneumatic underfloor heating or floor heating, such as Ondol, which allows the fluid to flow through the piping, may also be used.

Another embodiment of the arrangement of the grooves 13 will be described with reference to FIG. In this embodiment, a through hole 12 provided in a floor material 11 is provided.
Are arranged at equal intervals in a direction parallel to each side 15-1, 15-2 of the flooring material 11, and the groove 13 is formed in each side 15-1, 15-2 of the flooring material 11.
They are arranged at equal intervals in a direction parallel to 15-2. Also in this example, it is a matter of course that the above-mentioned shallow groove 17 is provided on the surface to prevent the slip prevention mat 20 and the tatami mat 30 from slipping.

As described above, according to the present embodiment, the warmed air can flow freely in the gap G, so that the tatami floor 10
In the conventional structure in which the entire back surface is in contact with the floor plate of the floor structure, the heat in the gap G does not stay in portions other than the through holes 12 and is formed by the gap G, the through holes 12 and the grooves 13. Due to the convection in the flowing passage, the water is quickly transmitted to the upper surface of the tatami floor 10.

On the other hand, looking at the process in which the warm air that has risen through each through-hole 12 rises further through the anti-slip mat 20 and the tatami mat 30, the warm air that has reached the upper end of each through-hole 12 moves upward. The ascending movement receives the resistance of the anti-slip mat 20 and the tatami mat 30 covering the upper surface,
The air convection tends to be slightly dull. However, in the present invention, the groove 13 communicating with the upper end of each through hole 12 is
Since it extends from 2 to four sides, the warm air reaching the upper end of each through hole 12 is diffused into each groove 13, and each warm hole 12 and each groove 1
3 can be ascended from a wide area including 3. That is, in the conventional example having no such groove, the convection passage of the air from the tatami floor to the tatami surface and above (in the room) is formed by each through hole 1.
In contrast, in the present invention, the air flow passage from the tatami floor 10 to the tatami table 30 and above (in the room) is greatly expanded by the presence of the groove 13 in the present invention. Despite some resistance to airflow by the anti-slip mat 20 and the tatami mats 30, a greater amount of airflow is possible.

Further, since the through holes 12, the grooves 13, and the gaps G are all in communication, even if the heat distribution on the surface of the floor plate 63 of the floor structure 60 is uneven, for example, a uniform heat distribution over the entire surface of the tatami mat 100 is obtained. can get.

Therefore, when the tatami mat 100 of the present invention is used for floor heating, the heat transmitted from the floor structure 60 provided with the floor heating will not be trapped in the tatami floor 10, and most of the heat will be transferred. ,
The air is guided to the front side of the tatami mat by a smooth convection in the air flow path including the gap G, the through hole 12 and the groove 13, and is diverged. Therefore, a high thermal conductivity is obtained, and the room temperature can be quickly raised by floor heating. Moreover, uniform heating is ensured by the air distribution network constituted by the gap G, the through holes 12 and the grooves 13.

The tatami floor of the present invention can be used not only for tatami floors but also, for example, as a floor on a closet or on a shelf, or as a cage for laying in a bathroom.

[0036]

As described above, according to the present invention, the floor material 11 constituting the tatami floor is provided with a large number of through holes 12 penetrating in the thickness direction thereof, and the groove connecting the upper ends of the through holes 12 is provided. 13 are provided vertically and horizontally on the surface of the flooring material 11, and
1 is provided with a projection 14 on the lower surface, so that the floor structure and the tatami mat 100
A gap G communicating with the through hole 12 is provided between the tatami mat and the floor, so that moisture and moisture on the floor surface do not directly touch the floor material 11, and moisture on the lower surface of the tatami mat can be diffused from the tatami mat surface. Therefore, even when the floor surface is damp, the floor material does not become damp or rotten, and the tatami mat can be laid directly on the concrete floor. Furthermore, even in the case where water is spilled on the tatami mat, water flowing under the tatami mat is diverged from the tatami mat without being kept on the floor material forever. As described above, according to the present invention, it is possible to provide a tatami floor and a tatami mat that maintain appropriate elasticity as a tatami mat and have good air circulation.

When the tatami floor according to the present invention and the tatami mat using this tatami floor are applied to a floor heating device, the gap G and the through-hole
A continuous air flow passage is formed between the groove and the groove 13, and most of the heat that has risen from the floor structure can be smoothly raised by convection in the air flow passage without staying in the tatami floor. From the upper surface of the tatami floor, heat can be radiated upward from a wide area including not only the through holes but also the grooves. Therefore, while maintaining a thickness that can maintain a moderate elasticity as a tatami mat. The heat conductivity of the floor heating is greatly increased, the room temperature can be quickly raised, and the floor heating can be efficiently used in a Japanese-style room.

Further, since the gap G is formed in the lower part of the tatami floor 10, warm air is diffused also in the lower part of the adjacent tatami mat G, so that the tatami mat without the floor heating device is heated. Since the air rises, it is possible to heat from a surface wider than the place where the floor heating device is laid. Therefore, a large tatami mat surface can be heated even if the area for laying the heating device is reduced as compared with the case where a conventional tatami mat is used.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view showing an installation state of a tatami mat using a tatami floor of the present invention.

FIG. 2 is a top view illustrating the structure of the tatami floor of the present invention.

FIG. 3 is a bottom view illustrating the structure of the tatami floor of the present invention.

FIG. 4 is a partial cross-sectional view taken along line BB of FIG. 2;

FIG. 5 is a top view illustrating the structure of another embodiment of the tatami floor of the present invention.

FIG. 6 is a partial cross-sectional view showing a tatami mat using the tatami mat floor of the present invention installed for floor heating;

[Explanation of symbols]

 Reference Signs List 10 tatami floor 11 floor material 12 through hole 13 groove 14 projection 15 side 16 ridge 17 shallow groove 18 taper 20 non-slip mat 30 tatami mat 40 tatami edge 50 concrete floor 51 waterproof treatment layer 60 floor structure 61 large pull 62 joist 63 floor board 70 Floor heating device 71 Insulation box 72 Heating wire 73 Livestock heating material 74 Pipe

Claims (12)

(57) [Claims] 1. A plurality of through-holes penetrating in the thickness direction of a flooring material having moderate elasticity, a plurality of grooves communicating with the upper ends of the respective through-holes and extending along the upper surface of the flooring material, A tatami floor having a plurality of projections projecting downward from a position away from each through hole on a lower surface. 2. The tatami floor according to claim 1, wherein the flooring is made of a resin foam. 3. The tatami floor according to claim 2, wherein the flooring is made of one of high-density polystyrene foam and polystyrene foam. 4. A through hole is arranged at a predetermined pitch in two directions parallel to the side surface of the flooring material, and a groove extends in two directions so as to connect the through holes in each direction. The tatami floor according to any one of claims 1 to 3, which is orthogonal to the floor. 5. A through-hole is arranged at a predetermined pitch in a direction obliquely crossing each side of the side surface of the tatami floor, and a groove extends in the two directions so as to connect the through-hole in each direction. The tatami floor according to any one of claims 1 to 3, wherein the tatami floors intersect at the positions of the respective through holes. 6. The tatami floor according to claim 1, wherein a plurality of shallow grooves communicating with the grooves are provided on the surface of the floor material in the direction of the eyes of the tatami mat. 7. The tatami floor according to claim 1, wherein a projection provided on a lower surface of the floor material is formed integrally with the floor material. 8. The tatami floor according to claim 1, wherein the projection projects from a point corresponding to the center of each area surrounded by the two-way groove. 9. The tatami floor according to claim 1, wherein a projection provided on a peripheral portion of the floor material is attached by a fixing means. 10. A plurality of through-holes penetrating in the thickness direction of the flooring material having moderate elasticity, a plurality of grooves communicating with the upper ends of the respective through-holes and extending along the upper surface of the flooring material, A tatami floor having a plurality of projections projecting downward from a position separated from each through hole on a lower surface, and a tatami mat provided on a surface of the tatami floor. 11. The tatami mat according to claim 10, wherein an air-permeable non-slip mat is interposed between the tatami mat surface and the tatami mat floor. 12. The tatami mat according to claim 10, wherein the tatami mat is laid on a floor provided with a floor heating device.