JP2864223B2 - Artificial grass block - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an artificial turf block which can be used indoors or outdoors, and which is excellent in moderate cushioning, lightness, noise reduction, water absorption and drainage, durability and the like. About.

[0002]

2. Description of the Related Art Conventionally, carpets and carpets have been widely used as rugs indoors. On the other hand, artificial turf is widely used outdoors, for example, on the rooftop, in parks, golf courses, and the like. However, rugs such as carpets and carpets, or artificial turf, are generally in the form of sheets having a small thickness and low waist. Therefore, these rugs and artificial turf are lightweight and have the convenience of being transported in a rolled state. Turns, wrinkles, or moves. Therefore, when these are stably installed on a predetermined floor or ground, it is complicated. On the other hand, in order to solve such a problem, fixing a necessary portion such as an end portion or a back surface of the sheet-like material with an adhesive or a fixing member is performed by a person other than a trader, particularly. It is complicated.
Therefore, there has been a strong demand for an artificial turf structure that is easy to handle during construction and the like.

[0003]

Means for Solving the Problems In order to solve the above-mentioned problems, the present inventors have conducted intensive studies and as a result, have found that a core substrate mainly including a pulp board having a predetermined thickness and a base fixed to the upper or lower surface thereof. The present inventors have found that an artificial turf structure that solves the above problems can be obtained by fixing artificial turf to a support plate made of cloth, and have reached the present invention. That is, the present invention provides (1) a support plate including a core substrate including a pulp board and having a thickness of 10 to 60 mm, and a base fabric fixed to an upper surface or a lower surface of the core substrate; An artificial turf block comprising an artificial turf fixed to a plate.

[0004]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an artificial turf block 1 according to a preferred embodiment of the present invention. This artificial turf block 1 is provided on both upper and lower surfaces of a pulp board 2 as a core substrate.
A support plate is formed by providing the cross sheets 3 and 4 as a base cloth, and the artificial turf 5 is further fixed on the support plate. In this case, the pulp board 2, the cross sheets 3, 4 and the artificial turf 5 are tightly fixed by penetrating the upper and lower surfaces of the artificial turf block 1 with a high-strength fixing thread 6 made of vinylon or tetron. . The pulp board 2 is obtained by shaping a wood chip into a plate, drying it at a high temperature and heat-treating it, and then processing it into a plate. Usually, since it is treated with various agents such as an antiseptic and an anti-mite agent, it is hardly rotten or damaged by pests, and has excellent durability. Since the pulp board is made of wood pulp, it is lightweight and has excellent cushioning properties. Furthermore, as a property peculiar to wood, it is excellent in water absorption and release of water.
Therefore, in a room, when the humidity is high, it relatively absorbs water and contributes to a decrease in the humidity, while when the room is dry, it releases the absorbed water,
Dryness can also be reduced. Therefore, it can be said that the pulp board has a certain degree of humidity control action indoors. Further, the pulp board has excellent soundproofing and heat insulating properties. The thickness of the pulp board is 10 to 60 mm. When it is thinner than 10 mm, the layability is poor and it is difficult to handle. For example, if the thickness is not more than 10 mm, the rigidity of the artificial turf structure is poor, and the artificial turf structure is turned up or wrinkled by wind. Also, the soundproofing property and durability are poor. On the other hand, when the thickness is 6
If it exceeds 0 mm, transportability, laying efficiency, economic efficiency, etc. will be deteriorated. A preferred thickness is 20 to 40 mm, and a particularly preferred thickness is 20 to 30 mm.

[0005] The cross sheet is a reinforcing material for preventing the pulp board from being vulnerable to the tensile force in the vertical and horizontal directions and cutting the pulp board by the pressing force or the pulling force and preventing the wood pulp of the material from falling apart. Used as The cross sheet is generally a sheet-like base cloth in which yarns and the like are woven by a weave method such as a plain weave. As the yarn or the like, a flat yarn, a multifilament yarn, a spun yarn, or the like can be used. From the viewpoint of the strength as a reinforcing material, a preferable yarn or the like is a flat yarn formed from a synthetic resin such as polypropylene or polyethylene. Preferably, as a cross sheet, a flat yarn made of 1000 denier is plain-woven at a density (number of punched yarns) such that the length / width is 4 / inch × 4 / inch to 12 / inch × 12 / inch. Use things. The cross sheet may be formed by laminating reinforcing paper or the like.
Such a cross sheet has a driving number of, for example, 4
In the case of a low value such as 1 line / inch × 4 lines / inch to 6 lines / inch × 6 lines / in 1, the stability of strength is increased, which is economically advantageous. In addition, a high-strength cloth sheet having a high density of 1500 denier flat yarns, such as 15 yarns / inch × 15 yarns / inch, can be used. Conventionally, artificial turf was usually constructed after setting up asphalt and concrete after leveling, but in the case of artificial turf blocks manufactured with such a high-strength cross sheet, such asphalt and concrete The artificial turf can be constructed immediately after the ground preparation without providing concrete, etc., and in such a case, the artificial turf that has been completed can be stably and artificially prolonged without being distorted or deformed even if repeatedly stepped on. Can be used as turf. In addition, as a base cloth, a high-strength woven fabric or nonwoven fabric can be used in addition to the above-mentioned cross sheet.
However, the cloth sheet is particularly preferable as the base cloth. FIG. 1 shows an embodiment in which the cross sheets 3 and 4 are provided on both upper and lower surfaces of the pulp board 2.
Even if the cross sheet is provided only on one of the upper surface or the lower surface,
The desired effect can be achieved.

Conventionally used artificial turf can be used without limitation. Preferable artificial turf, for example, a plurality of pile yarns formed from a thermoplastic synthetic resin planted with a tuft machine on a base cloth woven by plain weaving or the like, or further backed with rubber or the like,
Further, an artificial turf or the like having a leaf member integrally protruded from a plastic substrate by an injection molding method can be used. Various fixing methods can be adopted as a fixing method between the pulp board, the cross sheet, and the artificial turf. In the above embodiment, a high-strength yarn can be used as the fixing yarn. As the high strength, for example, the tensile strength is preferably 15 to 25 kg. As the yarn having such high strength, for example, the above-mentioned vinylon yarn or tetron yarn can be used. Specifically, in the case of vinylon yarn (manufactured by Unitika), the product number 1000 (32
00 denier: tensile strength 15 kg or more) or 50
00 (2800 denier: tensile strength of 16 kg or more) or Tetron yarn (made by Unitika)
(3000 denier: tensile strength of 22 kg or more) or product number 1 (2000 denier: tensile strength of 18 kg or more) is used. Other fixing methods include, for example, a method of fixing with an adhesive, and a method of penetrating metal fibers, for example, wires through upper and lower surfaces, and fixing them by making them tight. Of these, it is preferable to fix with a wire from the viewpoint of strength, but since the wire has a drawback that it is easily rusted, it is preferable to sew it with a fixing thread with a sewing machine or the like from the viewpoint of durability. FIG. 1 shows an embodiment in which the fixing yarn is continuously fixed in only one direction (horizontal direction) with a fixing yarn.
It may be fixed by a fixing thread continuously in the direction. Such an immobilization method will be obvious to those skilled in the art. The shape of the artificial turf block as a block is not particularly limited. For example, various shapes such as a square, a rectangle, a triangle, a rhombus, and a circle can be used. Also, the size of the block is not particularly limited. For example, in the case of a quadrangle, the size is 45 cm × 45 cm to 50 × 50 cm.
The size may be a plywood standard size such as cm × 50 cm, 90 cm × 90 cm, or 1 m × 2 m.

FIG. 2 shows another embodiment of the support plate 17. In this embodiment, the cross sheet 15 fixed to the pulp board 12 covers the peripheral surface including the upper and lower surfaces of the support plate 17 so as to form the overlapping portion A on the upper surface, and penetrates the upper and lower surfaces of the support plate 17. It is continuously fixed by the fixing thread 16. In this embodiment, the cross sheet 15 is formed as a continuous and integral one, and is continuously fixed with fixing yarns, so that a strong support plate 17 is obtained. FIG.
Shows a support plate 27 of another embodiment. In this embodiment, a foamed resin plate 23 made of foamed polyethylene is provided below the pulp board 22. The specific gravity of the foamed resin plate 23 is smaller than that of the pulp board 22 and has good cushioning properties.
It is easy to reduce weight and adjust cushioning. In this embodiment, the case where the foamed resin plate 23 is provided under the pulp board 22 has been described. However, the position is reversed, the foamed resin plate is placed on the top, and the pulp board is provided thereunder. Provides a working effect. Further, in this embodiment, the pulp board and a plate made of another material are used in combination, but two pulp boards may be used in an overlapping manner.
In particular, it is easy to appropriately manufacture a core substrate having an appropriate thickness by combining standard products. Foam resin plate 23
Can be composed of various foamed resins. In this embodiment, the case where foamed polyethylene is used as the foamed resin plate 23 has been described. However, other foamed synthetic resins, for example, foamed polystyrene or the like can be used. In particular, the foamed resin plate has a barrier property against heat and sound,
Excellent in compressibility. The properties such as the specific gravity of the foamed resin plate
It varies variously depending on the resin used and the manufacturing conditions such as the expansion ratio. These matters are obvious to those skilled in the art. In this manner, even in the core substrate composed of the pulp board and the foamed resin plate, the thickness of the core substrate is 1 as described above.
0 to 60 mm. Although the foamed resin plate has been described as a material used in combination with the pulp board in the core substrate, other materials such as an FRP sheet, a fiber board, and a plastic cardboard can be used. By using these materials, the rigidity of the artificial turf block can be improved.

FIG. 4 shows a support plate 37 according to still another embodiment. In this embodiment, a core substrate in which a foamed resin plate 33 is sandwiched between two pulp boards 32 is used. This embodiment is also effective for adjusting the weight and cushioning property of the obtained artificial turf structure, as in the embodiment of FIG. Similarly, the thickness of the core substrate composed of the pulp board 32 and the foamed resin plate 33 is 10 to 60 mm.
It is. In addition, in FIGS. 2 to 4, the case where the cross sheet is provided on the entire upper and lower surfaces of the core substrate has been described. However, in the present invention, it is not necessary to cover the entire upper and lower surfaces with the cross sheet. For example, the cross sheet may be partially provided on the periphery of the upper or lower surface of the core substrate, and the cross sheet may be sewn to the core substrate by a sewing machine or the like. FIG. 5 shows an artificial turf block 41 of another embodiment different from FIG. In this embodiment, the core substrate is a pulp board 42 from above,
The cross sheet 43 and the foamed resin plate 46 are sequentially combined. By using the cross sheet 43 not only on the upper and lower surfaces of the core substrate but also on the middle, the strength of the core substrate can be further increased. Further, in this embodiment, the side surface of the artificial turf block is further covered with the artificial turf 45 and fixed by the fixing thread 48. However, the fixing thread is not sewn so as to penetrate the artificial grass block 41 from the front surface to the back surface. By the fixing with the fixing thread 48 on the above-mentioned side, the object of the fixing of the present invention can be sufficiently achieved. Since artificial turf is provided on the side surface in this way, when a block is constructed, a boundary between the blocks is hidden by the artificial turf, and a continuous appearance of the artificial turf is obtained.

FIG. 6 shows an artificial grass block 51 according to still another embodiment. In this embodiment, the cross sheet 54 provided on the lower surface of the core substrate is
Extending from both ends to form an extended portion B. When a block having such an extension B and a block having no such extension B are alternately arranged, the extension B
Since the block is placed in the work, the block does not move during the construction work, and the complexity of the construction work is prevented. Note that, in this embodiment, the case where the extended portions B of the cross sheet 54 are provided at both ends in the horizontal direction has been described. However, such extended portions B can be provided in the vertical direction. Such extensions B may be provided in both directions.

[0010]

The artificial turf block of the present invention has a predetermined thickness and an appropriate rigidity, so that the artificial turf block can be easily constructed without being turned up by the wind or wrinkled at the time of construction. it can. In addition, the artificial turf block is lightweight, has an appropriate cushioning property, and is excellent in soundproofing / muffling properties, heat insulation properties, moisture absorption / release properties, and durability.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of the artificial turf block of the present invention.

FIG. 2 is a perspective view showing one embodiment of a support plate used for the artificial turf block of the present invention.

FIG. 3 is a perspective view showing another embodiment of the support plate used for the artificial turf block of the present invention.

FIG. 4 is a perspective view showing still another embodiment of the support plate used for the artificial turf block of the present invention.

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

FIG. 6 is a perspective view showing still another embodiment of the artificial turf block of the present invention.

[Explanation of symbols]

1, 41, 51 ··· Artificial turf block 2, 12, 22, 32, 42 ··· Pulp board 3, 4, 15, 25, 35, 43, 54 ··· Cross sheet 17, 27, 37 ··· Support plate

Claims (4)

(57) [Claims] (1) A core substrate including a pulp board made of wood pulp and having a thickness of 10 to 60 mm, and a base fabric fixed to an upper surface or a lower surface of the core substrate. An artificial turf block, comprising: (2) an artificial turf fixed to the support plate. 2. The artificial turf according to claim 1, wherein the base cloth fixed to the upper and lower surfaces of the core substrate is integrated so as to cover a peripheral surface including the upper and lower surfaces of the core substrate. block. 3. The artificial turf block according to claim 1, wherein the core substrate has a foamed resin plate together with the pulp board. 4. The artificial turf block according to claim 1, wherein the fixing is performed by passing a thread or a wire through the core substrate, the base cloth, and the artificial turf through the upper and lower surfaces of these members.