JP3927729B2 - tatami - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a tatami mat that uses a wood fiber board as a tatami floor and has particularly good sewn characteristics.
[0002]
[Prior art]
Conventionally, tatami mats using a tatami floor in which a plurality of light and soft wooden fiberboards are laminated and sewn are well known and widely used in place of tatami mats.
[0003]
The wood fiberboard used for such a tatami floor is soft and easily causes corner breakage during handling such as transportation and tatami mat forming work, and corresponds to the tatami edge of the wood fiberboard when the tatami mat is re-placed many times. Because it may cause deterioration in the part, and the corner of the tatami mat surface may be worsened and rounded, the synthetic fiber solution is applied and impregnated on the surface, side surface or edge surface of the wood fiberboard to strengthen it. It is also practiced to form a tatami mat using a tatami floor that is laminated and sewn with the reinforcing portion of the wood fiber board as the surface side.
[0004]
[Solution]
However, when a tatami is formed using the above-described wood fiber board, the wood fiber board absorbs moisture and the peel strength tends to be lowered particularly under the humid conditions in the rainy season. For this reason, when laminating and sewing a plurality of the above-mentioned wood fiberboards having a higher moisture content than usual, a peeling phenomenon that protrudes to the back surface, which is referred to as needle omission, occurs on the back surface of the wood fiber board. In some cases, such a phenomenon cannot be sufficiently suppressed in a configuration in which a wood fiberboard reinforced with a conventional resin is laminated and sewn with the reinforcing portion as a surface.
[0005]
Also, the side edge, which is the sewn part, is likely to be dented or sag during tatami floor sewing, which may cause a phenomenon that the sewn thread is likely to be loosened. The problem is that it is difficult to perform the sewing work and may adversely affect the performance of the tatami mat.
[0006]
[Means for Solving the Problems]
In order to solve such a problem, the tatami of the invention according to claim 1 of the present application is a plurality of tatami floors having a specific gravity of less than 0.3 in which a band-shaped reinforcing layer formed by applying a synthetic resin to the side edge surface is formed. The wood fiberboard is laminated with the reinforcing layer of the wood fiberboard for the tatami floor on the front side facing up and the reinforcement layer of the wood fiberboard for the tatami floor on the back side facing down, and is formed with a tatami floor that is sewn The configuration was as follows.
[0007]
Further, the tatami mat of the invention according to claim 2 has a plurality of wooden fiberboards for tatami floors having a specific gravity of less than 0.3, on which a band-shaped reinforcing layer formed by applying a synthetic resin is formed on the side edge surface. Laminate so that the reinforcing layer of the wood fiber board for tatami floor on the side faces upward and the reinforcing layer of the wood fiber board for tatami floor on the back side faces downward, and is synthesized below the wood fiber board for tatami floor on the back side It was set as the structure formed by laminating | stacking the resin foam and sewing the tatami floor.
[0008]
Further, tatami of the invention according to the claims 3, a strip-shaped plurality of tatami floor wood fiber board of the specific gravity of less than 0.3 the reinforcing layer is formed of a synthetic resin formed by applying to the side edge surface, the surface Synthetic resin foam is placed between the plurality of wooden fiberboards for tatami floors so that the reinforcing layer of the wooden fiberboards for tatami flooring faces upward and the reinforcing layer of the wooden fiberboard for tatami flooring faces downward. The tatami floor was formed by inserting and laminating and sewing.
[0009]
[Action]
The tatami mats according to claims 1 to 3 of the present invention are laminated so that the reinforcing layer of the wood fiber board for tatami floor on the front side faces upward and the reinforcing layer of the wood fiber board for tatami floor on the back side faces downward, and is sewn. Therefore, even when the moisture content of the wood fiber board increases as in the rainy season, the peeling phenomenon that protrudes on the back surface, which is referred to as needle omission, can be satisfactorily suppressed by the reinforcing layer.
[0010]
In addition, since the laminated wood fiberboard is sandwiched between the downward reinforcement layer of the above-mentioned tatami floor wood fiberboard and the other wood fiberboard reinforcement layer, the dent at the time of sewing It is possible to reduce dripping and to prevent the sewing thread from being loosened.
[0011]
[Embodiment]
FIG. 1 shows a tatami mat (A) which is a first embodiment of the present invention.
[0012]
(1a), (1b), (1c) and (1d) are rectangular wood fiberboards for tatami flooring having a specific gravity of 0.2 to 0.3. This wood fiber board for tatami floors (1a), (1b), (1c), (1d) has both side edges (2a), (2b), (2c), (2d) in the long side direction with ethylene. Reinforced layers (3a), (3b), (3c), and (3d) formed by applying a synthetic resin solution such as vinyl acetate resin, urethane elastomer, acrylic resin, SBR, etc. in the form of a band, respectively, are provided. (1a) and (1b) are such that the reinforcing layers (3a) and (3b) are facing upward, respectively, and the wooden fiberboards (1c) and (1d) are facing the reinforcing layers (3c) and (3d) downward. It is laminated | stacked so that it may become, and it is sewn and formed in the tatami floor (4).
[0013]
Then, the protective layer (5) and the tatami mat (6) are laminated on the wood fiber board (1a) on the front surface side, and the moisture-proof sheet (7) is laminated below the wood fiber board (1d) on the back surface side. The tatami (A) is formed by wearing.
[0014]
Accordingly, the reinforcing layer (3d) of the wood fiberboard for tatami floor (1d) on the back side is laminated downward and sewn, so that a peeling phenomenon that protrudes to the back side, called needle omission, hardly occurs. The reinforcing layer (3d) and the other reinforcing layer (3a), (3b), (3c) of the wooden fiberboard for tatami floors, or the reinforcing layer (3a) of the other wooden fiberboard for tatami floors, (3b), (3c) is a structure in which the wood fiber board of the sewn portion is sandwiched between them, and the sewing operation can be performed with good thread tightness during sewing.
[0015]
Since the wood fiber boards for tatami flooring (1a), (1b), (1c), (1d) are usually formed by a wet papermaking method, by applying a synthetic resin solution in a band shape to a wet mat at the time of wet papermaking The reinforcing layers (3a), (3b), (3c), and (3d) may be provided.
[0016]
In the first embodiment, the reinforcing layers (3a), (3b), (3c), and (3d) are provided in the long side direction. However, they may be provided in the short side direction.
[0017]
FIG. 2 shows a tatami mat (B) which is a second embodiment of the present invention. In FIG. 2, (1e) and (1f) are wood fiberboards, and the surface side wood fiberboard (1e) is the back side wood fiberboard (1f) so that the reinforcing layer (3e) faces upward. The reinforcing layer (3f) is laminated so as to face downward, and a synthetic resin foam (8) made of polystyrene foam is laminated below the wood fiber board (1f) on the back side, and a tatami floor (9) is formed. Is formed.
[0018]
As in the first embodiment, the protective layer (5) and the tatami mat (6) are laminated on the wood fiber board on the surface side, and the moisture-proof sheet (7) is laminated under the synthetic resin foam (8). The tatami mat (B) according to the second embodiment is formed.
[0019]
In this case as well, as in the first embodiment, the reinforcing layer (3f) of the wood fiberboard for tatami floor (1f) on the back side is laminated downward and sewn, so that it protrudes from the back side, which is called needle removal. In addition, the reinforcing layer (3f) and (3e) sandwich the wood fiber board of the sewing portion, and the sewing work can be performed with a good tightness at the time of sewing. it can.
[0020]
FIG. 3 shows a tatami mat (C) according to a third embodiment of the present invention. (1g) and (1h) are wood fiberboards for tatami floors, and the front-side wood fiberboard (1g) is reinforced with the reinforcing layer (3g) facing upwards. The layers (3h) are laminated so that they face downward, and a synthetic resin foam (8) made of polystyrene foam is inserted between the two wood fiberboards (1g) and (1h), laminated, and sewn. Thus, a tatami floor (9) is formed.
[0021]
As in the first embodiment, the protective layer (5) and the tatami surface (6) are placed on the front-side wood fiber board (1g), and the moisture-proof sheet (1h) is placed on the back-side wood fiber board (1h). 7) are laminated and sewn to form a tatami mat (C) according to the third embodiment.
[0022]
In this case as well, as in the first embodiment, the reinforcing layer (3h) of the wood fiber board for tatami floor (1h) on the back side is laminated downward and sewn, so that it protrudes from the back side, which is called needle removal. The peeling phenomenon that occurs is difficult to occur, and the reinforcing fiber layers (3g) and (3h) sandwich the wood fiber board of the sewing portion so that the sewing work can be performed with good tightness at the time of sewing. it can.
[0023]
In any of the above embodiments, the reinforcing layers (3a), (3e), (3g) provided on the side edges of the front-side wood fiber boards (1a), (1e), (1g) are facing upward. As it is laminated, it can be sewn well, and it is excellent in re-adjusting the tatami mat.
【The invention's effect】
As is clear from the above description, the tatami mat of the present invention has good sewn properties, and even when the moisture content of the wood fiber board for tatami floors is increased and it is easily peeled off during the rainy season, There is no delamination that is called needle omission in the stitching portion, and the sewn portion of the fiberboard is sandwiched between the reinforcing layer on the back side and the other reinforcing layer of the wood fiberboard. Indentation and sag in time are reduced, the sewing thread is less likely to loosen, and can be formed with good sewing workability.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a tatami mat (A) according to a first embodiment of the present invention.
FIG. 2 is an explanatory view showing a tatami mat (B) according to a second embodiment of the present invention.
FIG. 3 is an explanatory view showing a tatami mat (C) according to a third embodiment of the present invention.
[Explanation of symbols]
(1a)-(1h) Wood fiber board (2a)-(2d) Long side direction edge (3a)-(3h) Reinforcement layer (4), (9), (10) Tatami floor (5) Protective layer (6) Tatami mat (7) Moisture-proof sheet (8) Synthetic resin foam

Claims (3)

A plurality of wooden fiberboards for tatami flooring with a specific gravity of less than 0.3 with a band-shaped reinforcing layer formed by applying synthetic resin on the side edge surface, and the reinforcing layer of the wooden fiberboards for tatami flooring on the front side facing upward tatami reinforcing layer next to the back side of the tatami floor wood fiber board is stacked so that the downward, characterized in that it is formed by tatami bed sewing. A plurality of wooden fiberboards for tatami flooring with a specific gravity of less than 0.3 with a band-shaped reinforcing layer formed by applying synthetic resin on the side edge surface, and the reinforcing layer of the wooden fiberboards for tatami flooring on the front side facing upward Next, the tatami floor is laminated so that the reinforcing layer of the wood fiber board for the tatami floor on the back side faces downward, and the synthetic resin foam is laminated below the wood fiber board for the tatami floor on the back side and sewn. A tatami mat that is formed of A plurality of wooden fiberboards for tatami flooring with a specific gravity of less than 0.3 with a band-shaped reinforcing layer formed by applying synthetic resin on the side edge surface, and the reinforcing layer of the wooden fiberboards for tatami flooring on the front side facing upward as reinforcing layer next to the back side of the tatami floor wood fiber board is down, and by inserting the plurality of tatami floor wood fiber plates in synthetic resin foam is laminated, formed tatami bed sewing Tatami characterized by being.

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