JP2020090880A - Tatami facing having embossment design and tatami using the tatami facing - Google Patents

Abstract

To provide a tatami with a suitable amount of skid resistance.SOLUTION: In a tatami facing having an embossment design on a front surface of a tatami facing, the embossment design is independent each other, a diameter of a circle circumscribing the embossment design is 0.5 mm or more and 20 mm or less and a total area of the circumscribing circle is 5% or more and 50% or less of a surface area of the tatami and a thickness is 0.3 mm or more.SELECTED DRAWING: Figure 1

Description

The present invention relates to a tatami mat having an embossed pattern on its surface and a tatami mat using the tatami mat. In particular, the present invention relates to a tatami mat and tatami mat with appropriate slip resistance in the direction of the tatami mat.

BACKGROUND ART Conventional synthetic resin tatami mats include a tatami mat formed by forming a tatami pattern on the surface of a synthetic resin sheet and a tatami mat formed by weaving synthetic resin imitation grass. As a tatami mat having a tatami pattern formed on the surface of a synthetic resin sheet, there is a tatami mat having a tatami pattern formed on a synthetic resin sheet by a mold device for polyurethane molding in which grooves for forming the tatami pattern are formed (for example, See Patent Document 1.). The tatami pattern has a linear uneven pattern in the length direction of the grass that appears on the tatami mat using the grass. By the way, this direction is called tatami.
In addition, the tatami mat made of synthetic resin imitation grass has a similar feel to the tatami mat made of grass that has been used for a long time, and it also prevents the occurrence of pests such as mites and durability. A tatami mat made by weaving synthetic resin imitation grass is also known. (For example, refer to Patent Document 2.).

Hereinafter, a conventional synthetic resin tatami mat having a tatami mat pattern formed on a surface material will be described. Since the surface material of this tatami mat has no hygroscopicity, it has a sticky feeling especially when walking barefoot in the summer, and the tactile table has a bad feel as compared with the tatami mat using grass. Further, since the tatami mat pattern is formed, the sliding resistance of the tatami mat is small in the direction of the folds and large in the direction perpendicular to the folds.
Next, the imitation grass made of synthetic resin will be described. The imitation grass has wrinkles, and water or the like can be absorbed between the wrinkles, so that the texture can be approximated to that of natural grass. However, even with a tatami mat using this imitation grass, the sliding resistance of the tatami mat is small in the direction of the tatami mat and large in the direction perpendicular to the mat. This also applies to tatami mats using grass.

For floors including tatami mats, slip resistance is an important performance requirement. If the slip resistance of the floor is not appropriate, inconveniences such as slipping and falling, and slipping due to excessive slippage may occur, which may lead to a serious accident, especially in the elderly.

JP, 2017-141574, A JP-A-5-220870

As described above, in the conventional tatami mat, the slip resistance is small especially in the mat direction. In addition, as a floor for walking, it is important that the slip resistance is in an appropriate range and that the slip resistance does not greatly differ depending on the direction. Especially for the elderly, this must be taken into consideration for safety when walking.

The present invention is intended to solve the problems that such conventional configurations have, and it is a so-called tatami mat having tatami mats, in particular, a tatami mat having a tatami pattern made of synthetic resin or a synthetic resin imitation sheet. The purpose is to form an embossed pattern on the tatami mat using grass so that the vertical and horizontal slip resistance of the tatami mat is appropriate.

In order to achieve the above object, the present invention provides a tatami mat having an embossed pattern formed on the surface of the tatami mat, wherein the depth of the emboss is 0.3 mm or more.

The embossed pattern is not particularly limited, but may be a geometrically independent pattern or a continuous pattern such as wood grain. The emboss depth of 0.3 mm or more includes those in which a dent of 0.3 mm or more is formed on the surface of the tatami mat and those in which a dent of 0.3 mm or more is further formed from a shallow embossed pattern.

As a second solving means, a tatami mat having an embossed pattern formed on its surface, wherein the embossed patterns are independent of each other, and a diameter of a circle circumscribing the embossed pattern is 0.5 mm or more and 20 mm or less, The total area of the circumscribed circles was 5% or more and 50% or less of the surface area of the tatami mat, and the depth was 0.3 mm or more.

As a tatami mat, a synthetic resin one is suitable because an embossed pattern can be easily formed with a hot roll or the like. The synthetic resin is not particularly limited, but thermoplastic synthetic resins such as polyethylene, polypropylene, nylon and polyester can be used.
The embossed patterns are independent of each other, but if the diameter of the circle circumscribing the embossed patterns is smaller than 0.5 mm, the effect of reducing the slip resistance is small, and if the diameter is larger than 20 mm, the tatami mat becomes stiff and uncomfortable. If the total area of the circumscribing circles is less than 5%, the required slip resistance cannot be obtained, and if it is more than 50%, the tatami mat becomes stiff and uncomfortable. Further, since the emboss patterns are independent, the required slip resistance can be increased. If the depth of the embossed pattern is less than 0.3 mm, the required slip resistance cannot be obtained. In addition, although not limited, it is preferable that the depth of embossing is 0.8 mm or less because embossing is easy.

As the embossed pattern, a circular pattern having a diameter of 1 mm or more and 3.0 mm or less is particularly preferable because it has no stickiness when used as a tatami mat. The ratio of the circular total area is more preferably 10% or more and 35% or less.

A third problem solving means is a tatami mat using the tatami mat table described above, and the slip resistance of the bare feet in the tatami direction and the direction perpendicular to the tatami direction is 0.5 or more.

Here, the slip resistance is based on the floor performance evaluation guidelines of the Japan Institute of Architecture, using a slip measuring device "O-Y-PSM" equipped with a slide piece of a bare foot that is common for exercise facility floors and general floors. Measured and calculated slip performance value C. S. It is R·BF.

The operation of the first and second solving means is as follows. That is, by forming an embossed pattern on the surface of the tatami mat, the slip resistance can be made appropriate regardless of the direction.

Further, the action of the second solving means is that when the tatami mat is constructed, the slip resistance of the bare feet in the direction of the tatami and the direction perpendicular to the tatami direction is set to 0.5 or more. Easy and safe tatami mat.

As described above, by using the tatami mat having the embossed pattern of the present invention, it is possible to provide a tatami mat that is safe for the elderly to walk.

Front view of a tatami mat showing an embodiment of the present invention Front view of a tatami mat showing another embodiment of the present invention

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.

In FIG. 1, reference numeral 1 is a synthetic resin tatami mat, 2a and 2b are embossed patterns, and 3 is a circumscribed circle thereof.

The embossed pattern 2a has a heart shape, but the shape is arbitrary. The diameter of the circumscribing circle 3 is 0.5 mm or more and 20 mm or less, but when the embossed pattern is a circle, the embossed pattern and the circumscribed circle have the same shape.

The total area of the circumscribed circles 3 is 5% or more and 50% or less of the surface area of the tatami mat, and the circumscribed circles are preferably evenly distributed.
The embossed patterns may have the same shape or different shapes on the entire tatami mat.

The depth of the embossed patterns 2a and 2b is 0.3 mm or more, but the thickness of the tatami mat is generally 2 mm or less, so 1 mm or less is preferable, and 0.8 mm or less is more preferable.

As an embossed pattern, a heart shape having a circumscribed circle of 14 mm was formed with a depth of 0.5 mm on a synthetic resin tatami mat. As a synthetic resin tatami mat, polypropylene resin is molded into a grass shape and woven into a tatami mat.
I made it.

This tatami mat was tatami matted using a KT-III type tatami mat floor defined in JIS A 5914.
The sliding resistance of this tatami was 0.50, and the sliding resistance in the direction perpendicular to the tatami was 0.51.

As an embossed pattern, a circle of 1.5 mm was formed on a tatami mat made of synthetic resin with a depth of 0.5 mm. As the synthetic resin tatami mat, the same one as in Example 1 was used, and an embossed pattern was formed with a hot roll.

This tatami mat was tatami matted using the same tatami mat as in Example 1.
The sliding resistance of this tatami was 0.56, and the sliding resistance in the direction perpendicular to the tatami was 0.60.

A wood grain pattern having a depth of 0.7 mm was formed on a synthetic resin tatami mat as an embossed pattern. As the synthetic resin tatami mat, the same one as in Example 1 was used, and an embossed pattern was formed with a hot roll.

This tatami mat was tatami matted using the impact relaxation tatami mat floor specified in JIS A5917.
The sliding resistance of this tatami was 0.53, and the sliding resistance in the direction perpendicular to the tatami was 0.53.
(Comparative Example 1)

A tatami mat made of rush was tatami matted using the same tatami mat as in Example 1.
The sliding resistance of this tatami mat was 0.45, and the sliding resistance in the direction perpendicular to the mat was 0.53.
(Comparative example 2)

The synthetic resin tatami mat table dew described in Example 1 and the same tatami floor as in Example 1 were used for matting.
The sliding resistance of this tatami mat was 0.48, and the sliding resistance in the direction perpendicular to the mat was 0.51.
(Comparative example 3)

A tatami mat made of igusa was tatami matted using a shock-resistant tatami mat floor specified in JIS A 5917.
The slip resistance of this tatami was 0.45, and the slip resistance in the direction perpendicular to the tatami was 0.59.

1 resin tatami mat 2a embossed pattern 2b embossed pattern 3 circumscribed circle

Claims (3)

A tatami mat having an embossed pattern formed on the surface thereof, wherein the embossed pattern has a depth of 0.3 mm or more. A tatami mat having an embossed pattern formed on the surface, wherein the embossed patterns are independent of each other, the diameter of a circle circumscribing the embossed pattern is 0.5 mm or more and 20 mm or less, and the total area of the circumscribed circles is the tatami mat. 5% or more and 50% or less of the surface area of and the depth is 0.3 mm or more, and the tatami mat having an embossed pattern. A tatami mat using the tatami mat according to claim 1 or 2, wherein the sliding resistance of the bare feet in the tatami direction and the direction perpendicular to the tatami direction is 0.5 or more.