JP2961487B2 - tatami - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin tatami mat having a laminate obtained by laminating a foam, for example, a compressed polyurethane foam laminated on both sides of a plywood, in a tatami floor.

[0002]

2. Description of the Related Art A tatami mat using plywood has been used as a floor material instead of a tatami mat using rice straw as a tatami mat floor. However, tatami mats made of plywood floors, which are now widely known, are thought to be at least as thick as the threshold of the Japanese house threshold, so they are thick and therefore bulky and heavy. There was a disadvantage that it was difficult. In addition, there is a step in the thickness of the sill between the floor surface on which the tatami mats are laid and the floor plate surface, and there is a risk that the elderly or children may trip over due to the step. Therefore, it was conceived to reduce the thickness of the plywood, but reducing the thickness of the tatami floor caused problems in the strength of the tatami mat, the cushioning property, and the like.

[0003]

Therefore, the present inventor has proposed various tatami mats using conventional plywood as a tatami mat floor in order to obtain a tatami mat which is thinner, has a bending rigidity, and is more cushioned. As a result of the study, the present invention has been completed, and an object of the present invention is to provide a tatami mat having a reduced thickness, a bending rigidity, and a high cushioning property.

[0004]

SUMMARY OF THE INVENTION The gist of the present invention is to provide a tatami mat having a total thickness of 15 mm or less in which a tatami mat is adhered to the surface of a tatami floor in which foams compressed in the thickness direction are laminated on both surfaces of a plywood. The tatami mat is a tatami mat which is folded back along the edge of the tatami floor, stored and fixed in a recess provided at an end of the back of the tatami floor, and flattened on the back. That is, the present invention was able to provide a tatami mat having a reduced thickness, excellent cushioning properties, and a light weight that is easy to handle by using a tatami floor in which the compressed foam is laminated on both sides of the plywood. .

The present invention will be described in detail. The thickness of the plywood used in the present invention is not so thick as to reduce the thickness of the entire tatami mat and to facilitate the processing, and usually the thickness is preferably about 2.5 to 3 mm. If it is less than 2.5 mm, the bending rigidity of the tatami floor cannot be maintained, and if it exceeds 4 mm, it is not suitable for the purpose. The compressed foam to be laminated on the plywood is a foam which is compressed about 1/5 to 1/10 times in the thickness direction of the foam and has a specific gravity (density) of about 0.12 g / cm ^3. is there. Examples of the foam of the compressed foam that can be used in the present invention include foams such as polyurethane, EVA, cross-linked polyethylene (trade name: Softlon), polypropylene, and polyethylene. However, it is most preferable because the residual strain is small. The thickness of the compressed foam is preferably about 2 mm. By laminating the compressed foam on the plywood, a soft feel of the tatami surface can be obtained and the load can be dispersed, so that even if the thickness of the whole tatami is reduced, it can have strength such as bending rigidity. it can.

The means for laminating the plywood and the compressed foam is not particularly limited. For example, when bonding the plywood and the compressed polyurethane foam, the two may be directly bonded. It is preferable to use a tape or the like. In the present invention, the tatami mat is folded along the edge of the tatami mat obtained by laminating the compressed foam on the plywood, and the end of the tatami mat is housed in a recess provided in advance at the end of the back surface of the tatami mat. Fix it. When the end of the tatami mat is rolled along the edge of the tatami floor and adhered to the back, the back is not flat, which results in unevenness of the tatami mat. In the present invention, in particular, a concave portion is provided in advance at the end of the compressed foam laminated on the back surface of the tatami floor, and the end of the tatami surface is stored and fixed in this portion, so that the unevenness on the surface of the tatami surface can be eliminated. Further, the tatami mat and the tatami mat superimposed on the side edges in the longitudinal direction are attached by sewing or stapling with a needle as in the case of the conventional tatami mat. Tatami mats and tatami mats used in the present invention are the same as those used in ordinary tatami mats.For example, tatami mats are made by weaving rush etc. with yarn such as hemp yarn, or made of synthetic resin such as polypropylene. For the tatami mats, use normal ones such as cotton and synthetic resin. On the back of the tatami mat, to protect the laminated compressed foam,
For example, it is preferable to attach a sheet such as a polypropylene cloth.

[0007]

Next, the present invention will be described in detail with reference to the drawings as embodiments. FIG. 1 is a tatami mat of the present invention, and FIG. 2 is a cut end surface of AA. In FIG. 2, polyurethane foams 2 and 3 formed by heating and compression molding are laminated on upper and lower surfaces of a plywood 1. The thickness of the plywood is about 3mm, the compressed polyurethane foam is
A polyurethane foam having a thickness of 14 mm and a density of 0.016 g / cm ³ was compressed in the thickness direction to use a polyurethane foam having a thickness of 2 mm. Therefore, the density of this foam is 0.112 g / cm
^{Was 3} . The tatami mat 4 is folded back along the edge of the tatami mat floor, and the end is attached to a concave portion provided at the end of the compressed polyurethane foam 3 laminated on the back of the tatami mat to flatten the back surface. Then, a tatami edge 5 is superimposed on the side edge of the tatami table, and attached to the tatami floor as in the case of a normal tatami mat. The resulting tatami mat has a thickness of about 9
mm, it is lightweight and easy to handle, and the surface is flat and rich in cushioning. If necessary, a polypropylene cloth may be adhered to the entire back surface with an adhesive or a double-sided tape.

[0008]

As described above, according to the present invention, the total thickness of the tatami mat is made as thin as 9 mm by using the tatami floor of the tatami mat in which the compressed foam is laminated on both sides of the plywood. Yes, it is easy to handle, and there is no step like conventional tatami, so there is no stumbling. Further, the surface is soft, comfortable to step on, a soft touch is obtained, and bending rigidity etc. It has effects such as being able to have mechanical strength.

[Brief description of the drawings]

FIG. 1 is a tatami mat according to the present invention.

FIG. 2 is a sectional end view of a cutting line AA in FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Veneer board 2, 3 Compressed foam 4 Tatami table 5 Tatami edge

Claims (2)

(57) [Claims] 1. A tatami mat having a total thickness of 15 mm or less in which a tatami mat is adhered to the surface of a tatami mat having a foamed material compressed in the thickness direction laminated on both sides of a plywood board. The tatami mat is folded back along, and stored and fixed in a recess provided in advance at the end of the back surface of the tatami floor, and the back surface is flattened. 2. The tatami mat according to claim 1, wherein a polypropylene cloth is adhered to the back surface of the tatami mat.