Artificial turf structure and method for lifting water in artificial turf structure

Abstract

To provide an artificial turf structure capable of improving convenience related to heat dissipation from an artificial turf layer, and a method for lifting water in the artificial turf structure.SOLUTION: An artificial turf structure comprises a water storage layer that stores water in a layer below an artificial turf layer, and a water lifting section that lifts the water stored in the water storage layer up to the artificial turf layer.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an artificial turf structure and a water pumping method in the artificial turf structure.

Background Art

[0002] Conventionally, for example, as shown in Patent Document 1, an artificial turf structure has been disclosed in which a water supply pipe is installed below an artificial turf layer, and water from the water supply pipe is supplied to the artificial turf layer through a water conduction sheet. In such an artificial turf structure, when water evaporates, heat dissipation of the artificial turf layer can be promoted by evaporative cooling. Thereby, the temperature rise of the artificial turf layer can be suppressed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in such an artificial turf structure, it is essential to install a water supply pipe below the artificial turf layer, and there is a risk that the construction efficiency may decrease. Thus, it is desired to improve the convenience regarding heat dissipation of the artificial turf layer.

Means for Solving the Problems

[0005] The artificial turf structure for solving the above problems includes a water storage layer that stores water in a layer lower than the artificial turf layer, and a water pumping unit that pumps the water stored in the water storage layer to the artificial turf layer. The water pumping method in the artificial turf structure for solving the above problems pumps the water stored in the water storage layer in a layer lower than the artificial turf layer to the artificial turf layer using the water pumping unit.

Effects of the Invention

[0006] According to the present invention, the convenience regarding heat dissipation of the artificial turf layer can be improved.

Brief Description of the Drawings

[0007]

Figure 1

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Modes for Carrying Out the Invention

[0008] [First Embodiment] An embodiment of an artificial turf structure and a water pumping method in the artificial turf structure will be described. <Artificial Turf Structure 10> As shown in FIG. 1, the artificial turf structure 10 is a structure that at least includes a pavement constituting the artificial turf. The artificial turf structure 10 may be, for example, a pavement for providing an environment for playing various sports on the artificial turf.

[0009] The artificial turf structure 10 includes an artificial turf layer 11, a support layer 12, a water storage layer 13, and a water barrier sheet 14. The artificial turf layer 11 is a layer constituting the artificial turf. The artificial turf layer 11 is provided in an upper layer than the support layer 12. The artificial turf layer 11 constitutes the surface layer of the artificial turf structure 10.

[0010] The artificial turf layer 11 includes a base fabric 20, artificial turf piles 21, and a filling material 22. The base fabric 20 is the basic member of the artificial turf layer 11. The base fabric 20 is the basic member for driving the artificial turf piles 21.

[0011] The artificial turf piles 21 constitute the surface of the artificial turf. The artificial turf piles 21 are driven into the base fabric 20. The artificial turf piles 21 may be driven into the front surface of the base fabric 20 with backing applied to the back surface of the base fabric 20. Thereby, it becomes difficult for the artificial turf piles 21 to come out of the base fabric 20.

[0012] The filling material 22 is a cushioning material. The filling material 22 can reduce the burden on players who play various sports competitions on the artificial turf, for example. The filling material 22 is filled into the base fabric 20 into which the artificial turf piles 21 are driven. The filling material 22 may contain silica sand. The filling material 22 may contain rubber chips.

[0013] The support layer 12 is a layer that supports the artificial turf layer 11. The support layer 12 constitutes the base layer of the artificial turf structure 10. The support layer 12 is provided in a lower layer than the artificial turf layer 11. In particular, the support layer 12 is provided immediately below the artificial turf layer 11. The support layer 12 is provided in an upper layer than the water storage layer 13. That is, the support layer 12 is provided between the artificial turf layer 11 and the water storage layer 13. The support layer 12 has water permeability. The support layer 12 is composed of porous porous asphalt 23, but may be composed of porous porous concrete.

[0014] The porous asphalt 23 includes through holes 24. The through holes 24 are holes that penetrate in the vertical direction. The through holes 24 may have a groove shape. The through holes 24 are holes for communicating the artificial turf layer 11 and the water storage layer 13.

[0015] The water storage layer 13 constitutes the roadbed of the artificial turf structure 10. The water storage layer 13 is a layer for storing water. In particular, the water storage layer 13 is a layer for storing water for dissipating heat from the artificial turf layer 11. The water storage layer 13 is provided in a lower layer than the artificial turf layer 11 and the support layer 12. In particular, the water storage layer 13 is provided immediately below the artificial turf layer 11 and the support layer 12. The water storage layer 13 may be composed of cobblestones 26 to ensure the water storage capacity. The water storage layer 13 may be provided with at least one of crushed stone and crusher run on the upper layer of the cobblestones 26.

[0016] The water barrier sheet 14 is provided in a lower layer than the artificial turf layer 11, the support layer 12, and the water storage layer 13. In particular, the water barrier sheet 14 is provided in a lower layer than the water storage layer 13. The water barrier sheet 14 may be provided not only in the lower layer of the water storage layer 13 but also to cover the artificial turf structure 10. In such a case, a drain pipe or a permeation pipe into the ground may be provided. The artificial turf structure 10 may be a sheet with low water permeability, such as a civil engineering sheet, instead of the water barrier sheet 14.

[0017] The water barrier sheet 14 has water barrier properties. The water barrier sheet 14 blocks the water stored in the water storage layer 13. Therefore, the water barrier sheet 14 can suppress the penetration of the water stored in the water storage layer 13 into the roadbed.

[0018] <Water pumping section 15> The artificial turf structure 10 includes a water pumping section 15. The water pumping section 15 is a member for pumping the water stored in the water storage layer 13 to the artificial turf layer 11. The water pumping section 15 includes a water conduction sheet 30. The water conduction sheet 30 is a sheet having water retention properties. In particular, the water conduction sheet 30 pumps the water stored in the water storage layer 13 and diffuses it to the artificial turf layer 11.

[0019] The water conduction sheet 30 includes a first water conduction section 31 and a second water conduction section 32. The first water conduction section 31 and the second water conduction section 32 are integrally formed as one sheet, but may be separately formed as a plurality of sheets.

[0020] The first water guiding part 31 is arranged to penetrate through the through hole 24. The first water guiding part 31 guides the water stored in the water storage layer 13 upward. In particular, the first water guiding part 31 guides the water stored in the water storage layer 13 to the second water guiding part 32. In this way, the water guiding sheet 30 is arranged to penetrate through the support layer 12.

[0021] The second water guiding part 32 is provided between the artificial turf layer 11 and the support layer 12. In particular, the second water guiding part 32 is provided in a layered manner between the artificial turf layer 11 and the support layer 12. The second water guiding part 32 disperses the water from the first water guiding part 31 to the artificial turf layer 11.

[0022] <Operation of the First Embodiment> The operation of the first embodiment will be described. As shown in FIG. 2, in the artificial turf structure 10, a water barrier sheet 14 is installed on the roadbed. The water storage layer 13 is formed by installing crushed stones 26 on the upper layer of the water barrier sheet 14. Further, the water guiding sheet 30 is installed between the crushed stones 26. In this case, the first water guiding part 31 is installed between the crushed stones 26. The second water guiding part 32 may be located above the crushed stones 26 in a cylindrical shape. The water storage layer 13 may be formed by installing at least one of crushed stones and crusher run on the upper layer of the crushed stones 26.

[0023] As shown in FIG. 3, with the water guiding sheet 30 cured, porous asphalt 23 is placed on the upper layer of the water storage layer 13. Thereby, the support layer 12 is formed on the upper layer of the water storage layer 13. The porous asphalt 23 is provided with a through hole 24 through which the water guiding sheet 30 penetrates.

[0024] As shown in FIG. 4, after removing the curing of the water guiding sheet 30, the water guiding sheet 30 is spread on the porous asphalt 23. Specifically, the water guiding sheet 30 spreads the second water guiding part 32 protruding from the through hole 24 onto the porous asphalt 23 in one horizontal direction. Thereby, the water guiding sheet 30 is arranged on the support layer 12.

[0025] As shown in Fig. 1, an artificial turf layer 11 is installed on the water-permeable sheet 30. Thereby, the artificial turf layer 11 is provided on the upper layers of the water storage layer 13 and the support layer 12. In particular, the artificial turf layer 11 is provided in a state where the water-permeable sheet 30 is positioned between the artificial turf layer 11 and the support layer 12.

[0026] As shown in Fig. 5, in the artificial turf structure 10, when it is a rainy day, rainwater penetrates from the artificial turf layer 11 to the lower layer. Thereby, the rainwater is stored in the water storage layer 13 through the water-permeable sheet 30 and the support layer 12. Also, even when watering is performed, when it is a rainy day, the water that has been watered penetrates from the artificial turf layer 11 to the lower layer and is stored in the water storage layer 13.

[0027] As shown in Fig. 6, when it is a sunny day, the water stored in the water storage layer 13 is led to the upper layer by the water-permeable sheet 30. Specifically, the water stored in the water storage layer 13 is led to the upper layer by the first water-conducting part 31. Then, the water led to the upper layer by the first water-conducting part 31 is dispersed by the second water-conducting part 32. The water dispersed by the second water-conducting part 32 is pumped up to the artificial turf layer 11.

[0028] In this way, the water stored in the water storage layer 13 is pumped up to the artificial turf layer 11. When the water pumped up to the artificial turf layer 11 evaporates, the rise in the surface temperature of the artificial turf layer 11 can be suppressed by evaporative cooling. Thereby, the rise in the temperature of the artificial turf layer 11 due to sunlight can be suppressed.

[0029] <Effects of the First Embodiment> The effects of the first embodiment will be described. (1-1) The artificial turf structure 10 includes a water storage layer 13 that stores water in a layer lower than the artificial turf layer 11, and a pumping part 15 that pumps the water stored in the water storage layer 13 to the artificial turf layer 11. Therefore, by supplying the water stored in the water storage layer 13 to the artificial turf layer 11, when the water evaporates, the heat dissipation of the artificial turf layer 11 can be promoted by evaporative cooling. Thereby, the rise in the temperature of the artificial turf layer 11 can be suppressed. Therefore, the convenience regarding the heat dissipation of the artificial turf layer 11 can be improved.

[0030] In particular, the water storage layer 13 is provided directly below the artificial turf layer 11, rather than directly below an outer layer different from the artificial turf layer 11. For this reason, the supply of water to the artificial turf layer 11 can be made more efficient. Therefore, the convenience regarding heat dissipation of the artificial turf layer 11 can be improved.

[0031] (1-2) The artificial turf structure 10 includes a support layer 12 having water permeability between the artificial turf layer 11 and the water storage layer 13. The pumping section 15 includes a water conduction sheet 30. The water conduction sheet 30 is arranged so as to penetrate the support layer 12. For this reason, the artificial turf layer 11 can be stably supported. Thereby, the temperature rise of the artificial turf layer 11 can be suppressed without impairing the play feeling on the artificial turf layer 11. Therefore, the convenience regarding heat dissipation of the artificial turf layer 11 can be improved.

[0032] In addition to this, the water stored in the water storage layer 13 can be pumped up to the artificial turf layer 11 using the water conduction sheet 30. For this reason, it is not necessary to use a large member to supply water to the artificial turf layer 11. Thereby, while reducing the construction man-hours, the construction cost can be reduced. Therefore, the convenience regarding heat dissipation of the artificial turf layer 11 can be improved.

[0033] Also, it is not necessary to use electricity to supply water to the artificial turf layer 11. Thereby, the degree of contribution to environmental protection can be improved. Therefore, the convenience regarding heat dissipation of the artificial turf layer 11 can be improved.

[0034] (1-3) The water conduction sheet 30 includes a first water conduction section 31 that pumps up the water stored in the water storage layer 13 to the artificial turf layer 11, and a second water conduction section 32 that disperses the water pumped up by the first water conduction section 31. The second water conduction section 32 is provided in the lower layer of the artificial turf layer 11. For this reason, the variation in the temperature of the artificial turf layer 11 can be suppressed. Therefore, the convenience regarding heat dissipation of the artificial turf layer 11 can be improved.

[0035] [Second Embodiment] Next, the second embodiment will be described. In the following description, for the same configurations as those in the embodiments already described, overlapping descriptions will be omitted or simplified, and mainly the configurations different from those in the embodiments already described will be described.

[0036] As shown in FIG. 7, in the second embodiment, the water storage layer 13 includes crushed stones 27. The crushed stones 27 are provided in an upper layer than the split stones 26. In this way, the water storage layer 13 may include the split stones 26 and the crushed stones 27.

[0037] The pumping section 15 includes a pumping pipe 34. The pumping pipe 34 extends vertically from the water storage layer 13 toward the artificial turf layer 11. The pumping pipe 34 is provided so as to penetrate the support layer 12. The pumping pipe 34 may be a rigid vinyl wire pipe. The pumping pipe 34 may be a perforated pipe. The water stored in the water storage layer 13 can penetrate from the outside to the inside of the pumping pipe 34.

[0038] The water guiding sheet 30 includes a first water guiding section 33 and a second water guiding section 32. The first water guiding section 33 and the second water guiding section 32 are configured separately as a plurality of sheets, but may be integrally configured as one sheet.

[0039] The first water guiding section 33 is attached to the inner wall of the pumping pipe 34. The first water guiding section 33 may be attached to the outer wall of the pumping pipe 34, or may be attached to both the inner wall and the outer wall of the pumping pipe 34. The first water guiding section 33 guides the water stored in the water storage layer 13 upward. In particular, the first water guiding section 33 guides the water stored in the water storage layer 13 to the second water guiding section 32. In this way, the water guiding sheet 30 is arranged so as to penetrate the support layer 12.

[0040] The pumping section 15 includes a pumping material 35. The pumping material 35 is accommodated in the pumping pipe 34. Specifically, the pumping material 35 is accommodated in the pumping pipe 34 to which the first water guiding section 33 is attached to the inner wall. The pumping material 35 is a substance having a pumping function by capillary action. The pumping material 35 may include fine sand or may include porous asphalt.

[0041] The artificial turf structure 10 includes a water conduit 16, but it may not include the water conduit 16. The water conduit 16 is provided in the water storage layer 13. The water conduit 16 is provided in the area where the crushed stones 27 are arranged. The water conduit 16 may be used when draining the water stored in the water storage layer 13 to the outside of the artificial turf structure 10 when there is a large amount of water. The water conduit 16 may be used when supplying water from the outside of the artificial turf structure 10 when there is a small amount of water stored in the water storage layer 13.

[0042] On sunny days, the water stored in the water storage layer 13 is led to the upper layer by the water guiding sheet 30 attached along the water pumping pipe 34. Specifically, the water stored in the water storage layer 13 is led to the upper layer by the first water guiding part 33. The water stored in the water storage layer 13 is led to the upper layer by the water pumping material 35. Then, the water led to the upper layer by the first water guiding part 33 and the water pumping material 35 is dispersed by the second water guiding part 32. The water dispersed by the second water guiding part 32 is pumped to the artificial turf layer 11.

[0043] <Effects of the Second Embodiment> The effects of the second embodiment will be described. (2-1) The water pumping part 15 includes a water pumping pipe 34 extending vertically from the water storage layer 13 toward the artificial turf layer 11, a water guiding sheet 30 provided on the inner wall of the water pumping pipe 34, and a water pumping material 35 accommodated in the water pumping pipe 34. Therefore, the water guiding sheet 30 and the water pumping material 35 can be easily installed vertically, and the water pumping function can be improved. Thereby, even if the water storage layer 13 is deepened, water can be pumped from the water storage layer 13 to the artificial turf layer 11. Therefore, the convenience regarding the heat dissipation of the artificial turf layer 11 can be improved.

[0044] (2-2) The artificial turf structure 10 is provided with a water conduit 16 in the water storage layer 13. Therefore, the amount of water stored in the water storage layer 13 can be appropriately adjusted. Therefore, the convenience regarding the heat dissipation of the artificial turf layer 11 can be improved.

[0045] [Modification Example] This embodiment can be implemented with the following modifications. This embodiment and the following modification examples can be implemented in combination with each other within a technically non - conflicting range.

[0046] · In the artificial turf structure 10, the artificial turf layer 11 may be inclined more than horizontally. To give a specific example, in a tennis court, for drainage, the baseline may be lower than the position where the net is placed, so it is inclined. A tennis court may have a slope along the baseline for drainage. In such a case, it is preferable to spread the water - guiding sheet 30 on the support layer 12 so that the tip of the second water - guiding part 32 faces the direction with a lower inclination. Thereby, the water - guiding efficiency with respect to the tip of the second water - guiding part 32 can be improved.

[0047] · In the water - storage layer 13, a partition member for partitioning the water - storage area into a plurality of areas may be provided. Thereby, the water - storage layer 13 is partitioned so that water is stored in each of the plurality of areas. To give a specific example, when the roadbed is inclined, the water stored in the water - storage layer 13 may permeate into the lower area, and there may be variations in the amount of water stored in the water - storage layer 13. Even in such a case, if water can be stored in each of the plurality of areas by the partition member, variations in the amount of water stored in the water - storage layer 13 can be suppressed. Thereby, variations in the temperature of the artificial turf layer 11 can be suppressed. Therefore, the convenience regarding heat dissipation of the artificial turf layer 11 can be improved.

[0048] · The artificial turf structure 10 may be provided with a sand cushion using sand between the artificial turf layer 11 and the support layer 12. In this case, the sand cushion may be provided in an upper layer than the water - guiding sheet 30, or may be provided in a lower layer than the water - guiding sheet 30.

[0049] · The artificial turf structure 10 is not limited to the area for various sports competitions, and may be provided in any place such as, for example, at least one of a sidewalk, a square, a parking lot, and the rooftop of a building. · As used herein, the expression "at least any one" means one or more of the desired options. As an example, the expression "at least any one" as used herein means only one option or both of the two options if the number of options is two. As another example, the expression "at least any one" as used herein means only one option or any combination of two or more options if the number of options is three or more.

[0050] [Appendix] Next, the technical ideas that can be grasped from the above embodiments and alternative examples are appended below. (A) The water-conducting sheet includes a first water-conducting part and a second water-conducting part. The first water-conducting part pumps the water stored in the water storage layer to the second water-conducting part, and the second water-conducting part is located below the artificial turf layer 11.

[0051] (B) The water storage layer includes crushed stones. (C) The pumping part includes a pumping pipe extending vertically from the water storage layer towards the artificial turf layer, a water-conducting sheet provided on the inner wall of the pumping pipe, and a pumping material accommodated in the pumping pipe.

Explanation of Reference Numerals

[0052] 10... artificial turf structure, 11... artificial turf layer, 12... support layer, 13... water storage layer, 14... water barrier sheet, 15... pumping part, 20... base fabric, 21... artificial turf pile, 22... filling material, 23... porous asphalt, 24... through hole, 26... crushed stone, 27... crushed rock, 30... water-conducting sheet, 31, 33... first water-conducting part, 32... second water-conducting part, 34... pumping pipe, 35... pumping material.

Claims

1. A water storage layer that stores water in a layer below the artificial turf layer, and a pumping unit that pumps the water stored in the water storage layer to the artificial turf layer. An artificial turf structure comprising the same.

2. In the artificial turf structure according to Claim 1, a support layer having water permeability is provided between the artificial turf layer and the water storage layer, the pumping unit includes a water conduction sheet, and the water conduction sheet is arranged so as to penetrate the support layer. An artificial turf structure.

3. A pumping method in an artificial turf structure that pumps water stored in a water storage layer in a layer below the artificial turf layer to the artificial turf layer using a pumping unit.

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