JP7370057B2 - tatami - Google Patents

Description

The present invention relates to a tatami mat that is stored in a closet or the like when not in use, while being placed on the floor or the like when in use.

BACKGROUND ART Simple tatami mats have been known that are not always laid on the floor of a house, but are laid on the floor of a house when necessary. For example, the tatami disclosed in Patent Document 1 is used by laying it on the floor of a house when necessary, and is equipped with a rectangular plate-shaped tatami bed, and the outer edge of the tatami bed has a plurality of tatami mats. magnets are installed. Each magnet is arranged symmetrically in the direction of extension of each side of the tatami floor, and the magnetic poles on the outer surface are different at corresponding positions on the sides extending parallel to each other. , the two opposing magnets attract each other and connect the two adjacent tatami mats, and even if force is applied to the tatami mats unexpectedly during use, the two adjacent tatami mats will separate and cause problems in use. can be avoided.

Publication No. 57-57150

However, in the case of the tatami mat of Patent Document 1, the tatami floor is formed of a soft fibrous body, and when a load is applied to the area around the magnet during use, the area around the magnet on the tatami floor deforms. If this happens, the position of the magnet may shift from its normal position along the outer edge of the tatami floor, or the magnet may enter the back of the tatami floor, and even if multiple tatami mats are placed side by side, two opposing magnets may There is a risk that the suction force of the tatami mats will decrease and two adjacent tatami mats will no longer be firmly connected.

In addition, in Patent Document 1, each magnet is buried approximately in the upper and lower center of the outer peripheral edge of the tatami floor, and a housing recess that opens outward for burying the magnet is provided outside the large plate-shaped tatami floor. It is necessary to form them in order at predetermined positions on the periphery. Therefore, processing is difficult and complicated, and processing costs may increase.

Furthermore, in order to make the tatami mats easier to handle when transporting them or laying them on the floor, it is desirable that the tatami mats be made rigid and as light as possible so that they do not easily lose their shape. .

The present invention was made in view of the above problems, and its purpose is to provide a lightweight and rigid tatami mat that can firmly connect two adjacent tatami mats even after repeated use. To provide a tatami mat which can be processed relatively easily and manufactured at low cost.

In order to achieve the above object, the present invention is characterized in that most of the tatami floor has a two-layer structure, and the structure of one layer is devised.

Specifically, at the corresponding positions of a rectangular plate-shaped tatami bed, a tatami face covering the surface side of the tatami bed, and sides that extend symmetrically in the direction of extension of each side of the tatami bed and parallel to each other. The following solution was taken for a tatami mat equipped with a plurality of magnets arranged so that the magnetic poles on the outside surface are different.

That is, in the first invention, the tatami floor is arranged on the front side of the tatami mat, and has a plate shape in which a plurality of notches are formed at the outer peripheral edge and open to the outside and to both upper and lower sides. Comprising a hard fibrous body and a plate-shaped foam laminated on the lower surface of the fibrous body, each of the magnets has a size corresponding to the space of each of the notches, and a magnet is attached to each of the notches. It is characterized by being contained.

In a second invention, in the first invention, the outer peripheral edge of the foam is formed inside the outer peripheral edge of the fibrous body, and the outer peripheral part of the tatami surface is folded back to form the foam. It is characterized by being sewn onto the body.

A third invention is characterized in that in the first or second invention, the fibrous body is made of kenaf fiber.

A fourth invention is characterized in that in any one of the first to third inventions, the foam is a polyethylene foam.

A fifth invention is characterized in that in any one of the first to fourth inventions, the magnet is a neodymium magnet.

A sixth invention is characterized in that, in any one of the first to fifth inventions, one anti-slip sheet is affixed to the entire lower surface of the tatami floor.

A seventh invention is characterized in that, in any one of the first to sixth inventions, the tatami mats have the size of the middle of the booth.

An eighth invention is characterized in that in any one of the first to seventh inventions, a bamboo charcoal sheet made of a nonwoven fabric containing bamboo charcoal powder is disposed on the back side of the tatami mat.

In the first invention, most of the side surfaces of the magnet are surrounded by hard fibers, so even if a load is repeatedly applied to the periphery of the magnet during use, the periphery of the magnet is unlikely to deform. Therefore, it is less likely that the position of the magnet will shift from its normal position along the outer edge of the tatami floor, or that the magnet will get into the back of the tatami floor, and even if it is used repeatedly, two adjacent Tatami can be firmly connected. In addition, the part that accommodates the magnet is formed by partially cutting out the outer peripheral part of the fiber body that is a part of the tatami floor, so the outside of the tatami floor, which has a large plate shape, as in Patent Document 1 is Compared to a structure in which holes are drilled from the side in the peripheral edge to form an outward-opening storage recess that can accommodate the magnet, processing is simpler, and the tatami can be made with lower processing costs. . Furthermore, since the tatami floor is comprised of a hard and rigid fibrous body and a light foam, it can be made into a lightweight tatami mat that is easy to carry and handle.

In the second invention, the threads used to sew the tatami facing onto the tatami floor do not protrude beyond the outer peripheral edge of the fibrous body of the tatami floor. Therefore, when two tatami mats are placed side by side, the upper areas of the tatami mats will surely come into contact with each other, and the two opposing magnets provided on the upper area of each tatami will firmly attract each other to securely hold the two tatami mats together. It can be linked to.

In the third invention, the rigidity of the tatami is increased and the entire tatami becomes difficult to deform, making it easier to carry, but when the user sits on the tatami, the tatami sinks in and deforms appropriately. Therefore, the tatami mat can be easily handled and comfortable to sit on.

In the fourth invention, it is possible to make tatami mats with high heat insulation properties, and the foam has relatively high strength, so even if repeated loads are applied around the magnet during use, the lower part of the magnet It becomes difficult to deform. Therefore, the position of the magnet is less likely to shift downward from its normal position, and two adjacent tatami mats can be reliably connected even after repeated use.

In the fifth invention, since it has a strong magnetic force, even when a plurality of tatami mats are lined up and used repeatedly, two adjacent tatami mats can be more firmly connected. In addition, since the magnetic force is strong, the outer size of each magnet can be made smaller, making it possible to further reduce the weight of the entire tatami mat.

In the sixth invention, when the tatami mat is placed on the floor surface, it becomes difficult for the tatami mat to skid sideways with respect to the floor surface. Therefore, when the tatami mat is placed at a predetermined position on the floor, the tatami mat can be firmly fixed at that position.

In the seventh invention, for example, the tatami can be made into a tatami mat of an easy-to-handle size that can be carried as regular luggage on an airplane.

In the eighth aspect of the invention, the countless micropores in the bamboo charcoal powder effectively adsorb organic matter that causes dirt and odors in the air, making it possible to create tatami mats with high deodorizing and air purifying abilities. Additionally, since bamboo flour has strong antibacterial properties, it can enhance the insect repellent ability of tatami mats.

It is a perspective view showing a state in which two tatami mats according to an embodiment of the present invention are lined up. FIG. 2 is a plan view showing a state in which two tatami mats according to an embodiment of the present invention are lined up. 3 is a sectional view taken along line III-III in FIG. 2. FIG. 3 is a sectional view taken along the line IV-IV in FIG. 2. FIG. FIG. 2 is a front view showing a state in which two tatami mats according to an embodiment of the present invention are being placed side by side, or two tatami mats are being separated from each other. FIG. 4 is a diagram corresponding to a modification of the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. It should be noted that the following description of preferred embodiments is essentially only an example.

1 and 2 show a state in which two tatami mats 1 according to an embodiment of the present invention are arranged side by side. As shown in FIG. 5, the tatami mat 1 is used by being laid on the floor F of a house, etc., and can be used by a user H to sit on it or as a pedestal for dolls, vases, etc. There is.

The tatami mat 1 has the size of a booth, and as shown in FIGS. 3 and 4, it includes a tatami floor 2 in the shape of a rectangular plate and a tatami face 3 that covers the surface side of the tatami floor 2.

The tatami floor 2 includes a plate-shaped hard fiber body 4 made of kenaf fiber arranged on the tatami face 3 side, and a plate-shaped polyethylene foam 5 laminated on the lower surface of the fiber body 4. These two layers constitute most of the tatami floor 2.

The thickness of the fibrous body 4 and the thickness of the foamed body 5 are approximately the same, and the foamed body 5 is shaped such that its outer peripheral edge is located inside the outer peripheral edge of the fibrous body 4. .

As shown in FIG. 2, a plurality of notches 4a having a U-shape in plan view are formed on the outer peripheral edge of the fibrous body 4. As shown in FIG.

Two of the notches 4a are formed in a symmetrical pair at positions near the ends of the long sides of the tatami bed 2, and the positions of the notches 4a on one long side of the tatami bed 2 are This corresponds to the position of each notch 4a on the other long side.

Further, two of the notches 4a are formed in a symmetrical pair at positions near the ends of the short sides of the tatami floor 2, and the positions of the notches 4a on one of the short sides of the tatami floor 2 are They correspond to the positions of the respective notches 4a on the other short side of the floor 2, respectively.

Each notch 4a has a shape that opens outward and also opens on both upper and lower sides, and the upper open part and the outer open part are covered with the tatami facing 3, while the lower open part is made of foam. Covered by body 5.

As shown in FIGS. 3 and 4, each cutout 4a accommodates a neodymium magnet 7 having a size corresponding to the space of the cutout 4a, and each magnet 7 is attached to each side of the tatami floor 2. The magnetic poles on the outer surface are arranged symmetrically in the extension direction and at corresponding positions on the sides extending parallel to each other so as to be different.

The lowermost layer of the tatami floor 2 is composed of a low-density and rigid reinforcing sheet 10 made of pulp fiber or recycled waste paper. The reinforcing sheet 10 is attached so as to cover the lower surface of the polyethylene foam 5 except for the outer peripheral portion thereof.

The tatami facing 3 is formed by drying and weaving the stems of rushes, and its outer peripheral portion 3a is folded back along the outer peripheral edge of the tatami bed 2. The outer peripheral part 3a of the tatami facing 3 covers the outer peripheral part of the lower surface of the polyethylene foam 5 except for the part covered by the reinforcing sheet 10, and its thickness is approximately the same as the thickness of the reinforcing sheet 10.

A band-shaped tatami edge 6 with a pattern on the surface is provided at a portion corresponding to each long side of the tatami floor 2 so as to cover the tatami face 3, and each tatami edge 6 and tatami face 3 are shown in FIG. It is sewn to the foam body 5 with sewing thread 8 as shown in FIG.

Furthermore, the portions of the tatami facing 3 corresponding to the short sides of the tatami bed 2 are sewn to the foam body 5 with sewing threads 8, as shown in FIG.

An anti-slip sheet 9 made of closed-cell polyethylene foam is laminated on the lower surface of the tatami floor 2 and the outer circumferential portion 3a of the tatami surface 3, and the anti-slip sheet 9 is a single sheet. It is attached so as to cover the entire area of the outer circumferential portion 3a of the tatami facing 3.

The tatami mat 1 according to the embodiment of the present invention is suitable for use in a plurality of tatami mats arranged side by side. That is, as shown in FIGS. 1 to 3, when two tatami mats 1 are arranged side by side so that their long sides are adjacent to each other, the magnets 7 facing each other attract each other, and both tatami mats 1 are arranged side by side without any gaps. It looks like this.

When the user H places the tatami mats 1 on the floor F, as shown in FIG. When the next tatami mat 1 is tilted and attached to a predetermined side of the tatami mat 1, the corresponding magnets 7 attract each other and there is no gap between the upper parts of the corresponding sides of both tatami mats 1. Therefore, the user H can easily and neatly arrange the two tatami mats 1 side by side by rotating the tatami mats 1 held downward using the upper parts of the corresponding sides of the tatami mats 1 as fulcrums. (See arrow X1).

On the other hand, when the user H is cleaning up one of the two tatami mats 1 arranged side by side, if he lifts the edge of one tatami 1 on the side far from the other tatami 1, the corresponding sides of both tatami mats 1 will be removed. One of the tatami mats 1 easily rotates upward using the upper part as a fulcrum (see arrow X2). Therefore, even the tatami mat 1 with the magnet 7 provided on the outer peripheral edge can be easily cleaned up.

As described above, according to the embodiment of the present invention, most of the side surfaces of the magnet 7 are surrounded by the hard fiber body 4, so even if a load is repeatedly applied to the periphery of the magnet 7 during use, the periphery of the magnet 7 will not be affected. is difficult to deform. Therefore, it is less likely that the position of the magnet 7 will shift from its normal position along the outer peripheral edge of the tatami floor 2, or that the magnet 7 will get into the back of the tatami floor 2, and even after repeated use. Two adjacent tatami mats 1 can be firmly connected.

In addition, since the part that accommodates the magnet 7 is formed by partially cutting out the outer peripheral part of the fiber body 4 that is a part of the tatami floor 2, a large plate-shaped tatami mat as in Patent Document 1 is formed. Compared to a structure in which a hole is drilled from the side at the outer peripheral edge of the floor 2 to form an outwardly open housing recess capable of accommodating the magnet 7, this tatami mat is easier to process and has lower processing costs. It can be set to 1.

Further, since the tatami floor 2 includes the hard and rigid fibrous body 4 and the light foam 5, the tatami mat 1 can be made lightweight and easy to carry and handle.

In addition, since the outer peripheral edge of the foam 5 is located inside the outer peripheral edge of the fibrous body 4, the sewing thread 8 that folds the outer peripheral edge of the tatami facing 3 and sews it to the tatami floor 2 can be used. The fibrous body 4 of the tatami floor 2 does not protrude beyond the outer peripheral edge. Therefore, as shown in FIG. 3, when two tatami mats 1 are placed side by side, the upper areas of the tatami mats 1 will surely come into contact with each other, and the two opposing magnets provided in the upper area of each tatami 1 will Two tatami mats 1 can be reliably connected by firmly adsorbing them.

In addition, since the fiber body 4 is made of kenaf fiber, it has high rigidity and the entire tatami mat 1 is difficult to deform, making it easy to carry. It sinks in and becomes deformed. Therefore, the tatami mat 1 can be easily handled and comfortable to sit on.

Moreover, since the foam 5 is a polyethylene foam, the tatami mat 1 can be made with high heat insulation properties. Moreover, since the polyethylene foam 5 has relatively high strength, even if a load is repeatedly applied to the periphery of the magnet 7 during use, the lower part of the magnet 7 is difficult to deform. Therefore, the position of the magnet 7 is less likely to shift downward from its normal position, and two adjacent tatami mats 1 can be reliably connected even after repeated use.

In addition, since the magnet 7 is a neodymium magnet, it has a strong magnetic force, and even when multiple tatami mats 1 are arranged and used repeatedly, two adjacent tatami mats 1 can be more firmly connected. can. Moreover, since the magnetic force is strong, the outer shape of each magnet 7 can be made smaller, and the weight of the tatami mat 1 as a whole can be further reduced.

Furthermore, since a single anti-slip sheet 9 covers the entire lower surface of the tatami mat 1, when the tatami mat 1 is placed on the floor F, the tatami 1 is placed on the floor F. It becomes difficult to skid. Therefore, when the tatami mat 1 is placed at a predetermined position on the floor F, the tatami mat 1 can be firmly fixed at that position.

Further, since the tatami mat 1 has the size of a booth, it can be made into a size that is easy to handle and can be carried as normal luggage on an airplane, for example.

Incidentally, as in a modification of the embodiment shown in FIG. 6, a bamboo charcoal sheet 11 may be disposed on the back surface of the tatami facing 3. The bamboo charcoal sheet 11 is made of a nonwoven fabric containing bamboo charcoal powder, and covers the entire surface side of the fibrous body 4. When the bamboo charcoal sheet 11 is placed on the back side of the tatami mat cover 3 in this way, the countless micropores in the bamboo charcoal powder effectively adsorb organic substances that cause dirt and odors in the air, improving deodorizing and air purifying abilities. It can be made into a tall 1 tatami mat. Furthermore, since bamboo flour has strong antibacterial properties, the insect repellent ability of the tatami mat 1 can be increased.

In the embodiment of the present invention, kenaf fiber is used as the material for the fiber body 4, but the material is not limited to this, and for example, natural plant fibers such as coconut fibers, or synthetic fibers such as polyester can be used. It may be formed using, for example.

Further, in the embodiment of the present invention, a neodymium magnet is used as the magnet 7, but the present invention is not limited to this, and other magnets such as a ferrite magnet may be used.

Further, in the embodiment of the present invention, the polyethylene foam 5 is used as the foam forming the tatami floor 2, but the invention is not limited thereto, and other foams such as polystyrene foam may be used.

Further, in the embodiment of the present invention, two notches 4a are formed on each side of the fibrous body 4, and the magnets 7 are housed in each, but the present invention is not limited to this. It is also possible to form three or more notches 4a and accommodate the magnets 7 in each.

The present invention is suitable for tatami mats that are stored in a closet or the like when not in use, while being placed on the floor or the like when in use.

1 Tatami 2 Tatami floor 3 Tatami facing 4 Fibrous body 4a Notch 5 Foam 7 Magnet 9 Anti-slip sheet 11 Bamboo charcoal sheet

Claims (8)

A tatami bed in the shape of a rectangular plate, a tatami face covering the front side of the tatami bed, and magnetic poles on the outer surface of the tatami bed at corresponding positions of the sides extending parallel to each other and symmetrically in the direction of extension of each side of the tatami bed. A tatami mat comprising a plurality of differently arranged magnets,
The above-mentioned tatami floor includes a plate-shaped hard fiber body disposed on the front side of the tatami mat and in which a plurality of notches are formed at the outer peripheral edge and open to the outside and both upper and lower sides; Equipped with a plate-shaped foam layered on the lower surface of the body,
The tatami mat characterized in that each of the magnets has a size corresponding to the space of each of the notches and is accommodated in each of the notches. In the tatami according to claim 1,
The outer peripheral edge of the foam is formed to be inner than the outer peripheral edge of the fibrous body,
The tatami mat characterized in that the outer peripheral portion of the tatami face is folded back and sewn to the foam body. In the tatami according to claim 1 or 2,
A tatami mat characterized in that the fiber body is made of kenaf fiber. In the tatami according to any one of claims 1 to 3,
A tatami mat characterized in that the foam is a polyethylene foam. In the tatami according to any one of claims 1 to 4,
The tatami mat is characterized in that the magnet is a neodymium magnet. In the tatami according to any one of claims 1 to 5,
The tatami mat is characterized in that a single anti-slip sheet is pasted to the entire lower surface of the tatami floor. In the tatami according to any one of claims 1 to 6,
Tatami is characterized by its size being the size of a booth. The tatami according to any one of claims 1 to 7,
A tatami mat characterized in that a bamboo charcoal sheet made of a non-woven fabric containing bamboo charcoal powder is disposed on the back side of the tatami face.