JPH0726468U - Synthetic tatami - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a synthetic tatami mat that is inexpensive to manufacture, has no fear of breaking needles during sewing work, can be efficiently sewn together, and is clean and comfortable to sit on. A synthetic tatami mat 10 having at least a core material 11 made of foamed synthetic resin and a tatami mat 14 is sewn with a reinforcing plate 12 made of a circular peeling veneer interposed between the core material 11 and the rush 14. It is characterized by having done.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a synthetic tatami using a synthetic foam resin as a core material.

[0002]

[Prior art]

 In today's world of changing lifestyles, synthetic tatami mats made from foamed synthetic resin, which is clean and relatively inexpensive, are provided and used.

FIG. 6 shows a conventional synthetic tatami 1 using a foam synthetic resin as a core material. In this synthetic tatami mat 1, a core material 2 made of expanded synthetic resin, a protective sheet 3 arranged on the lower surface thereof, a reinforcing plate 4 arranged on the upper surface of the core material 2, and a reinforcing plate 4 arranged on the upper surface of the reinforcing plate 4. It is composed of a buffer body 5 and a rush 6 which is arranged on the upper surface of the buffer body 5 and constitutes a tatami mat. These are integrally sewn with a sewing thread (not shown).

[0004]

[Problems to be solved by the device]

 By the way, in such a synthetic tatami mat 1, a composite plate such as a veneer plate is used as the reinforcing plate 4. Since this composite plate has a structure in which a plurality of single plates are laminated alternately, the fibers are arranged in a mesh shape and the hardness is high.

Therefore, when the core material 2 and the reinforcing plate 4 are overlapped and the needle is passed through them, the tip of the needle collides with the fiber and a large force is required to further advance the needle. In addition, there is a problem that the tip of the needle may break if the needle is inserted at an angle.

Further, when the reinforcing plate 4 made of such a plywood is used, there is a problem that the cost of the synthetic tatami 1 becomes high. The present invention has been made in view of the above circumstances, and an object thereof is to provide a synthetic tatami mat that is inexpensive to manufacture, has no fear of breaking needles or the like during sewing work, and is clean and comfortable to sit on.

[0007]

[Means for Solving Problems]

 The synthetic tatami mat according to the present invention for achieving the above object is a synthetic tatami mat having at least a core made of foamed synthetic resin and a tatami mat. It is characterized by being sewn with a reinforcing plate interposed.

[0008]

[Action]

 According to the synthetic tatami mat having the above-mentioned configuration, the wood used as the circular stripping veneer has a constant fiber direction, and therefore the needle can easily pass through. Therefore, even if the needle is inserted diagonally, there is little risk of breaking the needle. Furthermore, if thinned wood is used, it is inexpensive and has excellent flexibility, so it is suitable as a material for tatami mats on which people sit and sit. Moreover, since such a veneer has excellent air permeability and humidity control, it is clean and less likely to cause moisture inside.

Further, since it is flexible, it is comfortable to sit on, and can sit with a natural feeling like a straw tatami mat. In addition, since such a synthetic tatami mat is lightweight and has a good shape conformity, there is little risk that the load will collapse when stacking a number of sheets, and the management becomes easy. Moreover, water does not penetrate, and there is little danger of becoming a hotbed for mites.

[0010]

【Example】

 The present invention will be described below with reference to the embodiments shown in FIGS. FIG. 1 is a sectional view of a composite tatami mat according to a first embodiment of the present invention.

The synthetic tatami mat 10 includes a core material 11 made of foamed synthetic resin, a reinforcing plate 12 arranged on the upper surface of the core material 11, and a buffer 13 arranged on the upper surface of the reinforcing plate 12. The tatami mat comprises a grass 14 and a protective sheet 15 arranged on the back surface of the core 11, which are sewn together with a sewing thread (not shown).

The core material 11 is formed by foaming a thermoplastic resin such as polystyrene, polyethylene, polypropylene, polyvinyl chloride, hard polyurethane or phenol resin at an appropriate ratio.

The reinforcing plate 12 is formed of a single plate such as cedar. The cushioning body 13 may be made of any soft foaming resin having appropriate strength and cushioning property, and capable of dispersing the load applied downward from the grass 14, but specifically, foamed vinyl chloride or foamed polyethylene. Also, a sheet having a thickness of about 1 to 5 mm such as expanded polystyrene can be used.

The rush 14 constitutes a tatami mat, and its end portion is doubly folded. The protective sheet 15 is attached to the back surface of the core material 11, and may be a sheet obtained by laminating polyolefin cloth, stretched tape yarn for bag and crust paper, or a material having a protective effect such as non-woven fabric or protective paper. Can be used.

By interposing such a protective sheet 15 on the back surface side, the core material 11 is prevented from being damaged due to a collision or the like, and is prevented from being displaced after being laid. The transmitted feel is soft.

Here, as the reinforcing plate 12, a circular peeling veneer formed by peeling raw wood is used. As shown in FIG. 2, the circular stripping veneer is obtained by gripping both ends of the log 16 such as cedar with chucks (not shown), rotating the log 16 as shown by the arrow, and pressing the blade 17 from the side. The plate material 16a is cut out.

As the thickness of the reinforcing plate 12 made of the plate material 16a, a thickness of about 1 mm to 5 mm is used, but it may be more. In the case of making a circular strip veneer, thin logs such as cedar can be used as the raw wood 16, so that it can be formed at a relatively low cost. Further, since the fiber direction of this single plate is constant, the needle can pass through easily, and even if the needle is inserted obliquely, there is little risk of breaking the needle.

Further, when such a reinforcing plate 12 is arranged on the core material 11, the load can be dispersed and transmitted to the core material 11, so that the core material 11 is partially dispersed by a concentrated load. There is no danger of sinking.

Further, since the cushioning body 13 having a cushioning property is interposed on the reinforcing plate 12, the feeling of stepping on the foot becomes soft. The first embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. The present invention can be applied to all other synthetic tatami mats as long as the synthetic tatami mat has a plate material disposed between the tatami mat and the core material made of foamed synthetic resin as in the above embodiment.

FIG. 3 shows a second embodiment of the present invention, and the same members as those in FIG. 1 are designated by the same reference numerals. In this synthetic tatami mat 20, a protective sheet 21 made of the same material as the protective sheet 15 on the back surface side is stuck between a reinforcing plate 12 made of a circular peeling single plate and a core material 11 made of foam synthetic resin. . Further, a waterproof paper 22 is arranged between the buffer 13 and the rush 14. Others are made of the same material as the synthetic tatami mat 10.

In the synthetic tatami mat 20 thus formed, both sides of the core material 11 are covered with the protective sheets 15 and 21, so that the mechanical strength of the core material 11 is improved. Further, since the upper surface of the core material 11 is covered, there is little risk that the core material 11 is inadvertently damaged during the work of disposing the reinforcing plate 12.

Further, since the waterproof paper 22 is arranged on the lower surface of the rush 14, it is possible to prevent the solution from penetrating into the interior when the seasoning or the like is spilled. FIG. 4 shows a third embodiment.

In the synthetic tatami mat 30 of this embodiment, two reinforcing plates 12 and 12 made of a circular stripping single plate are used, and a protective sheet 21 is interposed so as to sandwich these two reinforcing plates 12 and 12. Has been done. The material of the protective sheet 21 may be made of the same material as the protective sheet 15, or may be made of another material.

The interposition of the protective sheet 15 prevents the reinforcing plates 12 from being damaged by each other. Further, in the synthetic tatami mat 30, since the waterproof paper 22 is provided on the upper surface of the upper reinforcing plate 12, it is possible to prevent water from entering the reinforcing plate 12.

In the composite tatami mat 30 thus formed, the load is applied to the two reinforcing plates 12 and 12 before the load is applied to the core 11. Therefore, the load transmitted to the core material 11 can be further dispersed. Further, the compression amount of the core material 11 when a load is applied can be made smaller than that of the synthetic tatami mat 20.

FIG. 5 shows a fourth embodiment of the present invention. In this embodiment, the protective sheet 21 is attached to the upper surface of the core material 11, the reinforcing plate 12 is arranged on the upper surface, and the waterproof paper 22 is interposed on the reinforcing plate 12.

In the synthetic tatami mat 40 formed in this way, it is possible to obtain a mechanical strength in the middle of that between the synthetic tatami mat 20 and the synthetic tatami mat 30. In addition, Table 1 shows the mechanical strengths of the composite tatami mats 20, 30, and 40 according to the second, third, and fourth embodiments in comparison.

[0028]

[Table 1]

As is clear from this table, when laying in a room where a load is easily applied, the synthetic tatami mat 30 of Example 3 having the smallest amount of local compressive deformation and repeated amount of local compressive deformation is most preferable.

Further, it can be understood that the synthetic tatami mat 20 of the second embodiment is suitable for providing a soft sitting comfort by laying it in a tea room or the like. Furthermore, synthetic tatami mats that use foamed synthetic resin as the core material are lightweight and convenient to carry. In addition, the conformity of the shapes is good, so there is little risk of the cargo falling when stacking multiple sheets. Therefore, management when it is not used in the stadium becomes easy.

Further, since the foamed synthetic resin is mainly formed, it is clean without becoming a hotbed for mites and the like.

[0032]

[Effect of device]

 As described above, according to the synthetic tatami mat according to the present invention, the wood used as the circular stripping veneer can use thinned wood such as cedar, and thus can be formed relatively inexpensively. Moreover, since it is a single plate, the fiber direction is constant and the needle is easy to pass through. Therefore, even if the needle is inserted at an angle, there is little risk of missing the needle. Furthermore, if softwood Yoshino cedar or the like is used as a thinning material, it is also suitable as a material for tatami mats because it has excellent flexibility. Further, since such a single plate is also excellent in air permeability and humidity control, there is little risk that moisture will be generated inside.

Further, it is comfortable to sit and can be seated with a natural feeling like a straw tatami mat. In addition, since such a synthetic tatami mat is lightweight and has a good shape conformity, there is little risk that the load will collapse when stacking a number of sheets, and the management becomes easy. Moreover, water does not penetrate, and there is little danger of becoming a hotbed for mites.

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment of a synthetic tatami mat according to the present invention.

FIG. 2 is an explanatory view showing a process of forming a single plate adopted in the same embodiment.

FIG. 3 is a sectional view of a synthetic tatami mat showing a second embodiment of the present invention.

FIG. 4 is a sectional view of a synthetic tatami mat showing a third embodiment of the present invention.

FIG. 5 is a sectional view of a synthetic tatami mat showing a fourth embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a conventional composite tatami mat.

[Explanation of symbols]

 10, 20, 30, 40 Synthetic tatami mat 12 Reinforcing plate 14 Igusa (tatami mat)

Claims (1)

[Scope of utility model registration request] 1. A synthetic tatami mat comprising at least a core material made of foamed synthetic resin and a tatami mat, wherein a reinforcing plate made of a circular peeling veneer is interposed and sewn between the core material and the tatami mat. Synthetic tatami mats featuring.