JP3460035B2 - Lightweight tatami floor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved lightweight tatami floor which does not cause crease noise or ticks during use, and which does not cause a waist fold in a tatami floor with well-tightened sewing threads. , A cushioned, tough, healthy, durable and lightweight tatami mat that does not rot due to moisture.

[0002]

2. Description of the Related Art Most of the lightweight tatami floors on the market have the structure shown in FIGS. 4 and 8 and sandwich a foamed plastic sboard 5b between plastic hollow laminated plates 12a and 12b in a sandwich form. In most cases, the tatami floor 17 is sewn with a single sewing thread 8d by a sewing machine from above in the longitudinal direction of the tatami floor 17 by dropping a needle from the upper surface.

[0003]

Therefore, the following improvements have been made. In FIGS. 4 and 8, (a) the sewing thread 8d is not efficiently tightened, but the thread 8d is sewn from the upper surface with a single thread 8d. Therefore, the sewing thread 8d is doubled on the surface of the tatami floor 17, and the sewing trace is It remains clear, and the tatami floor 17 is weakly tightened, and the waist is broken. (B) When the tatami floor 17 is lifted or the upper surface of the tatami floor is stepped on, the foamed plastic sboard 5b is dented, the sewing thread 8d is loosened, and a squeaking noise is generated. (C) Since the tatami floor 17 has no strength, when a good tatami mat (not shown) knitted with hemp thread is used, the tatami mat 17 loses its waist and warps to the tatami mat 17 in a concave shape. , Wrinkles on the tatami mat do not grow. (D) The uppermost surface of the tatami floor 17 is weak only by the foam cushion sheet 18, and there are tatami floors in which not only the foam cushion sheet 18 or the non-woven sheet 3b to be laid in its place is also provided. The surface of 17 is easily torn. (E) Also, a method of guarding with a sheet of various materials (for example, silk cotton etc.) has been adopted to protect against the occurrence of mites, but in order to insert these soft materials, the sewing thread 8d is used.
There was a weak point that the tightening of was loose upon use. In order to eliminate this weak point, Japanese Patent Application No. 6-161710
When silk cotton is used in, the method of tightly tightening the tatami floor sewing threads 8a and 8b in the width direction of the tatami floor 1 as shown in FIG. 2 is adopted, but looseness occurs due to the flexibility of the silk cotton. Things were occasionally seen. The present invention has been made to solve these problems.

[0004]

In order to solve these problems, a lightweight tatami floor of Japanese Patent Application No. Hei 6-161710 has been disclosed and its effect has been improved. However, as mentioned above, the improvement of (e) occasionally occurs. Therefore, in order to make a tatami mat floor that is not sewn looser, a tatami mat material composed of plant palm fibers is used for tatami mats 1
The upper part and the lower part were combined in a sandwich shape, and the sewing thread 8a and 8b for tatami floor was used to tightly tighten the tatami floor 1 in the width direction. In addition, as a constituent material of the tatami floor 1, natural cotton is used as a constituent of natural cocoon, which has a great effect on human skin. The special properties of natural silk are temperature control, hygroscopicity, and air exhaustion. In order to make good use of moisture-proof and cushioning properties, various measures were taken in which silk cotton was incorporated in the upper part of the tatami floor and palm fiber sheet was incorporated in the central part of the tatami floor, and also in the central part and the lower part of the tatami floor.

Since the present invention has taken the above-mentioned means, it is stronger and lighter than the lightweight tatami floor of Japanese Patent Application No. 6-161710, and by combining the constituent material with a sheet composed of palm fibers. In addition, the strength of the sewn is stable, and due to the nature of the coconut fiber, it is a lightweight tatami mat that is resistant to moisture, does not move mold, does not tear, is strong against bending at the waist, and does not produce creaking noise. I was able to. In addition, by combining and inserting silk cotton and coconut fiber, it has become possible to provide an ideal lightweight tatami floor that is healthy for the human body, and enables a more solid structure than ever before.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. In FIG. 1, (a) a moisture-proof and insect-proof polystyrene foam sheet 2 is provided at the lowest part of the tatami floor 1, a 2 mm thick non-woven sheet 3a is laid on the upper surface thereof, and a 3 mm palm is further arranged on the upper part thereof. Lay the fiber sheet 4a. The coconut fiber sheet is made by extracting only good quality fibers from coconut husks, randomly arranging the fiber directions and compressing and solidifying it into a plate, which is manufactured by dry heat treatment at high temperature. (B) A coconut fiber sheet 4b having a thickness of 3 mm to 5 mm was sandwiched in a sandwich shape 20
Foam plastic board 5a with a thickness of 30 mm to 30 mm,
5b is laid, and again, plywood veneer 6 with a thickness of 3 mm 6
And a silk mat 7 made of silk cotton composed of natural silk thread having a thickness of 6 mm are overlapped, and a moisture-proof and insect-proof processed non-woven sheet 3 b having a thickness of 2 mm is overlapped on the uppermost surface. The silk tatami floor 1 is constructed. (C) With the above-mentioned structure, the following structure (not shown) can exert a more effective defense effect against moisture from under the floor. That is, by providing the palm fiber sheet 4a at the lowest portion of the tatami floor 1 and stacking the polystyrene foam sheet 2 and the non-woven fabric sheet 3a on the upper surface thereof,
First, moisture from under the floor will be protected by a palm fiber sheet that has good air permeability and will not rot due to moisture, allowing moisture to escape to the side, thus protecting the tatami floor material from decay.

(D) The tatami floor 1 formed by the configuration of a, b, or c is sewn in the width direction of the tatami floor 1 with the sewing threads 8a and 8b for the tatami floor. The tightened state of the sewing threads 8a and 8b is shown in FIG. That is, the portion where the sewing threads intersect with each other is tightly tightened, so that the ripple effect of the tightening extends to the entire tatami floor 1, and the upper surface of the tatami floor is tightened from the lower surface,
Since the middle part of the tatami floor 1 is compressed, the weaknesses up to now such as the central part of the tatami floor 1 are eliminated, and it is light, sturdy and lightweight with the same value as a well-tightened luxury tatami mat. We were able to provide a tatami floor. It should be noted that the tatami floor 1 is turned upside down and shown in FIG.
It is also possible to sew up by the method shown in. (E) Further, as shown in FIG. 3, the upper thread 8a and the lower threads 8b and 8c from the lower side can be sewn at a right angle to the upper thread 8a on the back surface of the tatami floor in the longitudinal direction to insert the palm fiber sheet. This makes it possible to adjust the distortion in the vertical and horizontal directions caused by sewing on the tatami floor.

(F) As shown in FIGS. 1 and 7, by inserting the palm fiber sheets 4a, 4b, 4c, etc. in the upper part (surface part), the middle part, the lower part (bottom part), etc., the strength of the palm fiber at the time of sewing is increased. Since the composition and the combination of the fibers have a random configuration, a great effect can be obtained in preventing the expansion of the tear in the sewing thread hole 9 after sewing. Also,
By directly laying the palm fiber sheets 4a, 4b, 4c and the like on the surface of the tatami floor, the tightening of the sewing thread prevents the hole 9 from further expanding and the loosening prevention and tightening effect are increased, and at the same time, moisture from the floor is prevented. It goes without saying that the effect of directly preventing it is greatly obtained by the material that does not rot due to breathability and moisture. (G) By changing the combination of the individual constituent materials shown in (i), (b), or (c) or by changing the plate thickness of the material, the palm fiber sheets 4a, 4b, 4c, etc. are used to By performing the sewing method shown in (d) and (e), a lightweight tatami floor with the same or higher value was obtained.

Next, another embodiment of the present invention in which the palm fiber sheets 4b and 4c are incorporated will be described with reference to FIGS. 5, 6 and 7. In FIG. 5, (h) the lowest part of the tatami floor 10 is provided with a moisture-proof and insect-proof polystyrene foam sheet 11, and the upper surface thereof has a thickness of 3
A millimeter hollow plastic laminated plate 12a is stacked, and two foam plastic sboards 5a having a thickness of 20 mm sandwiching a 2 mm to 5 mm palm fiber sheet 4c in the center are stacked on the upper part. (I) 1 mm veneer veneer 13 is laid on it, 5 mm plastic hollow laminate 12b is laid on it, and 3 mm non-woven fabric 3b is laid on the uppermost surface. (Nu) The tatami floor 10 formed by the above-mentioned (h) and (ri) configurations is sewn in the width direction on the surface and the bottom surface of the tatami floor 10 by the method described in (d) or (e). , 8
A durable tatami floor 10 was obtained by weft stitching at b and 8c, or weft stitching the surface and warp stitching the bottom surface.

Further, FIG. 6 shows that the lowest portion of the tatami floor 14 is provided with a moisture-proof and insect-proof polystyrene foam sheet 11, a 3 mm non-woven fabric sheet 3a is laid on the upper surface thereof, and a 3 mm palm fiber is further provided thereon. Sheet 4b is laid, and 20mm-30mm foamed plastic sboard 5a is laid on it.
Laid, and further laminated with 3 mm plywood veneer 6 and 3 mm non-woven fabric sheet 3b, (d) or
It is a simple lightweight tatami floor constructed by the sewing method (e).

In FIG. 7, a 3 mm non-woven fabric sheet 3a is provided on the lowest portion of the tatami floor 15, and a 3 mm palm fiber sheet 4b is inserted on the upper surface thereof, and further a 7-mm construction material JIS-
Combining the T-class insulation board 16 and sandwiching the foamed plastic sboard 5b with a thickness of 25 mm in the central part, again the JIS-T class insulin board 1 with a thickness of 7 mm
Combine 6 and add 1 mm veneer 13
3 mm palm fiber sheet 4b and 3 mm non-woven sheet 3
It is a simple lightweight tatami floor constructed by combining (b) with the sewing method (d) or (e).

Further, FIG. 9 shows that a lightweight tatami floor containing these palm fibers is interlocked with a warm air heater, a warm air dryer, a dehumidifier, etc. (not shown) by utilizing the property of the palm fibers having good air permeability. The new Japanese style bed has a tatami-like feel. In FIG. 9, a 0.5 mm thick polystyrene foam sheet 11 having a moisture-proof and insect-proof treatment is provided on the lowest part of the tatami floor 28, a 1 mm non-woven fabric sheet 3c is placed on the upper surface thereof, and further 5 mm is placed on the upper portion thereof. The compressed palm fiber sheet 4c is laid, the foam plastic sboard 5b of 25 mm is laid on it, and the 1 mm veneer veneer 13 is further laid on it, and the palm fiber sheet 4d is compressed again to 10 mm, Silk mat 1 compressed to 5-10 mm
9. It is a lightweight tatami floor that is constructed by stacking 0.5 mm non-woven fabric sheets 3c side by side and stitching (d) or (e).

A blower or suction cylinder 24 of a warm air heater, a warm air dryer, a dehumidifier, etc. (not shown) penetrates the bed floor portion 21 from the lower surface of the lightweight tatami floor 28 to the upper portion of the veneer veneer 13. It is connected to the bottom surface portion of the palm fiber sheet 4d located at, and has a configuration for blowing out warm air from the ventilation or suction holes 27, or a configuration for sucking moisture, mites and the like. The blower or suction cylinder 24 is attached by a plastic socket 25 attached to the lower palm fiber sheet 4c. A tatami floor without the veneer 13 can also be manufactured as a simple type. In addition, when the human sleeps, the above-mentioned blower or suction cylinders 24 are installed at several positions corresponding to the waist, legs, shoulders, neck, etc., all of which are for heating. It is also possible to use several of them, such as blowing air for heating and some for suction for dehumidification.
It should be noted that FIG. 9 shows only two of them, 22 is a floor waist mounting hole, and 23 is a floor foot mounting hole.

The present invention includes a tatami mat 26 on the upper surface of a lightweight tatami mat 28.
It is intended to be used as a Japanese-style tatami bed by laying a quilt, and it is also possible to use it as a normal bed by laying a futon in a Western style using a woven cloth cover directly on the lightweight tatami floor 28. it can.

[0015]

The structure shown in FIG. 5 is of a type in which the coconut fiber sheet 4c is inserted in the central portion of the tatami floor 10. The effect of this structure is that the coconut fiber sheet inserted causes twisting due to an increase in the strength of the tatami floor. By preventing and inserting a thick palm fiber sheet 4c, the generation of dew condensation due to the moisture of the foamed plastic sboard 5a is used, and the moisture is released to both sides by utilizing the excellent air permeability of the palm fiber sheet 4c. To prevent. As a result, it is very effective in preventing moisture from under the floor.

[0016] Conventionally, as disclosed in Japanese Patent Application No. 6-161710, by using silk cotton fibers as in the case of a lightweight tatami floor, it is lightweight and durable, eliminates ticks, and is hygienic and well-tightened. A strong tatami floor can be obtained, but not enough to prevent moisture from the floor. However, by combining various palm fiber sheets, it is possible to provide a tatami mat that is always dry and strong by utilizing the properties of palm fiber that have excellent toughness and breathability. Even if the combination is different, the original toughness of palm fiber prevents the expansion of the sewing hole by inserting the palm fiber sheet into the tatami floor, so the sewing thread is tightly tightened, and the surface shrinks and the bottom shrinks. By inserting the palm fiber sheet, the effect of being able to sew the front and back sides of the tatami mat at right angles to each other,
The tension of the sewing thread can be adjusted, and the distortion of the tatami floor due to the sewing thread can be prevented, which is a great effect. For this reason, even a lightweight tatami mat structure has the same value as a traditional straw mat of a high-class tatami mat, and the tatami mat has become more firmly constructed than a high-class tatami mat. As a result, the tatami mat could be laid neatly and a tatami mat with no creaking noise could be provided upon use.

Palm fiber is a material that is lightweight, has elasticity, is most breathable, has a high tensile strength, and has an excellent heat insulating effect. Moreover, it does not rot with moisture like the straw of conventional tatami mats, and by combining the materials centering on the durable moisture resistant palm fiber property to the material components of the tatami floor of the present invention,
We were able to obtain a tatami floor with excellent durability, which does not rot and has good ventilation.

A conventional tatami floor made of straw or the like is heavy, and when it absorbs moisture and dust, it becomes heavier, but the palm fiber is as light as about 1/2, and as shown in FIG. 1, glycine, alanine,
By adding to the constituent material silk mat 7 produced from natural cocoons composed of 95 percent protein composed of 18 amino acids such as sericin,
Combined with the soft feel of the body's skin and the characteristics of silk, such as hygroscopicity, heat retention, and breathability, the effect of maintaining warmth of silk by blowing hot air for a long time and the thread is tightly tightened. Due to the hard sewn unevenness on the tatami floor surface, a warm moxibustion effect is also generated, and yet the cushioning property and the strength of the palm fiber, which are essential conditions for the tatami floor, are fully combined to create a healthy palm fiber sheet that does not decay. It was also possible to obtain a lightweight tatami floor that was constructed in combination with silk, which has an excellent effect of eliminating ticks. In addition, recently, it was also confirmed that the rigid knot points of the sewing thread are good for preventing bed sores.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view and a plan / back view showing a sewing state of an embodiment of the present invention.

FIG. 3 is a sectional view and a plan / back view showing another sewing state of the embodiment of the present invention.

FIG. 4 is a sectional view and a perspective view showing a conventional sewing state.

FIG. 5 is a perspective view showing another embodiment of the present invention.

FIG. 6 is a perspective view showing a simplified embodiment of the present invention.

FIG. 7 is a perspective view showing another embodiment of the simplified type of the present invention.

FIG. 8 is a perspective view showing a conventional example.

FIG. 9 is a front cross-sectional explanatory view showing an embodiment of the bed type tatami floor of the present invention.

[Explanation of symbols]

1 Tatami floor 2 Polystyrene foam sheet 3a, 3b, 3c Nonwoven fabric sheet 4a, 4b, 4c, 4d Palm fiber sheet 5a, 5b Foamed plastic sboard 6 Plywood veneer 7 Silk mat 8a, 8b, 8c, 8d Sewing thread 9 Needle hole 10 Tatami floor 11 according to another embodiment Polystyrene foam sheets 12a, 12b Hollow plastic laminated plate 13 Veneer 14 Tatami floor 15 according to another embodiment Tatami floor 16 according to another embodiment JIS-T class insulation Board 17 Tatami floor of a conventional example 18 Foam cushion sheet 19 Compressed silk mat 20 Bed 21 Bed floor 22 Floor waist mounting hole 23 Floor foot mounting hole 24 Blower or suction cylinder 25 Plastic socket 26 Tatami table 27 Blower or suction Hole 28 Tatami floor of another embodiment

Claims (10)

(57) [Claims] 1. A moisture-proof and insect-proof polystyrene foam sheet (2) is provided at the lowest part of a tatami floor (1), a non-woven fabric sheet (3a) is laid on the upper surface thereof, and palm fiber is further provided thereon. A sheet (4a) is laid, and a foamed plastic sboard (5a), (5b) in which a sandwich-shaped palm fiber sheet (4b) is sandwiched is laid on the sheet (4a), and plywood veneer (6) and a silk mat ( A lightweight tatami floor made by stacking 7) and stacking the non-woven sheet (3b) on the upper surface. 2. A structure in which a palm fiber sheet (4a) is provided at the lowest part of a tatami floor (1), a polystyrene foam sheet (2) is provided on the upper surface thereof, and a non-woven fabric sheet (3a) is laid on the upper part of the sheet. Claim 1 characterized in that
Lightweight tatami floor described. 3. Sewing threads (8a), (8b) for tatami floor,
At (8c), both the front and back sides of the tatami mat are sewn rigidly in the width direction of the tatami mat and in the same direction on both sides, or
The lightweight tatami floor according to claim 2. 4. A sewing thread (8a) for the tatami floor is provided on the surface of the tatami floor in the width direction of the tatami floor and on the bottom surface in the longitudinal direction (8a).
The lightweight tatami floor according to claim 1 or 2, wherein the front and back sides are sewn rigidly at right angles to each other in (b) and (8c). 5. A polystyrene foam sheet (11) subjected to a moisture-proof and insect-proof treatment is provided on the lowest part of the tatami floor (10),
A hollow plastic laminate (12a) made of plastic is laid on the upper surface, and two foam plastic sboards (5a) having a thickness of 20 mm, sandwiching a coconut fiber sheet (4c) in the center in a sandwich shape, are further laid on the upper part. Further on top, veneer veneer (13), plastic hollow laminate (12
b), a tatami floor (10) constructed by laying a non-woven fabric (3b) on the uppermost surface, sewing thread (8a), and (8b), (8c)
Claim 3 or Claim 4 constituted by stitching together firmly with
Lightweight tatami floor described. 6. A polystyrene foam sheet (11) subjected to a moisture-proof and insect-proof treatment is provided at the bottom of the tatami floor (14),
A non-woven sheet (3a) is overlaid on the upper surface, a palm fiber sheet (4b) is further laid on the upper surface, a foamed plastic sboard (5a) is laid on the sheet, and a plywood veneer (6) non-woven sheet ( A lightweight tatami floor having a simple structure according to claim 3 or claim 4, which is constructed by stacking 3b). 7. A non-woven sheet (3a) is provided on the lowest part of a tatami floor (15), and a coconut fiber sheet (4b) is provided on the upper surface thereof.
Two JIS-T class insulation boards (16) sandwiching a foamed plastic sboard (5b) in the center are stacked, a veneer veneer (13) is placed on top of it, and a coconut fiber sheet (4b) is again a nonwoven fabric sheet ( A lightweight tatami floor having a simple structure according to claim 3 or claim 4, which is constructed by stacking 3b). 8. A tatami floor (28) is provided with a moisture-proof and insect-proof polystyrene foam sheet (11) at the lowest part, a non-woven fabric sheet (3c) is superposed on the upper surface thereof, and a compressed palm fiber sheet ( 4c), laid foam plastic sboard (5a) on it, and laminated veneer (13) on it, and compressed again, palm fiber sheet (4d), compressed silk mat (19), nonwoven fabric A tatami mat (28) formed by overlapping with (3c) is sewn tight with the sewing thread (8a), (8b), (8c) by the sewing method according to claim 3 or 4,
A Japanese-style lightweight tatami floor for beds with a tatami mat (26) laid on it, and a cylinder (24) for blowing or sucking air such as a warm air heater, a hot air dryer, and a dehumidifier from the bottom surface of the tatami floor (28). Dry and dehumidify the entire upper surface of the tatami floor (28) by blowing warm air or sucking moisture through 2 to 5 places on the bottom surface of the palm fiber sheet (4d) or through the holes (27) for blowing or suction. Or a Japanese-style lightweight tatami floor for beds, which is heated. 9. The lightweight tatami floor for beds according to claim 8, wherein the tatami mat (26) is a cover made of cloth. 10. The lightweight tatami-bed for beds according to claim 8 or 9, characterized in that, of the constituent materials of the tatami-mat (28), the veneer (13) is not incorporated.