JPH06322713A - Filling sand of artificial lawn court - Google Patents

Abstract

PURPOSE:To prevent the loss of sand and to promote outward appearance by spreading filling sands of olivine crushed sand among lawns of an artificial lawn court. CONSTITUTION:Filling sands 5 of olivine crushed sand are spread and filled among lawns 4 of an artificial lawn 2 sodded on a court ground 1. After that, if necessary, the olivine crushed sand is spread on the surface layer of the filling sands 5, and quartz sand is used for a lower layer. According to the constitution, the abrasion in the sand can be reduced to prevent the scattering or partial spreading of the sand because of high hardness and, at the same time, the concrete of the court can be prevented, a color of outward appearance can be emphasized on a green color as a whole to promote quantitative feeling, and line can be easily seen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial turf coat-filling sand, and more particularly to an improvement of a filling sand laid between artificial turf coat turf.

[0002]

2. Description of the Related Art Generally, artificial turf coats have the same sliding resistance when they are dry and when they are wet due to rain, etc.
Further, in order to make the sliding condition be the same as that of a normal artificial grass coat, silica sand or the like is scattered and filled between the grasses of the artificial grass coat. The above silica sand is usually beige, ocher, reddish brown, etc., and is often mixed with mica flakes.

[0003]

[Problems to be Solved by the Invention] However, when silica sand is sprinkled and filled in the artificial grass coat, the appearance becomes a clay coat-like (red color) and the density of the sand is conspicuous.
There is a problem that the lines and the like are hard to see, and there is a problem that silica sand is worn and becomes fine and scatters, or it accumulates on a part of the coat and is further concreted to harden the coat.

The present invention has been devised in view of the above-mentioned conventional problems. It prevents sand formation due to wear of the filling sand and delays concrete formation to harden the coat. It is an object of the present invention to provide an artificial turf coat-filling sand that can prevent the above-mentioned phenomenon and further improve the appearance and texture.

[0005]

In order to achieve the above-mentioned object, the present invention uses crushed olivine sand as a filling sand, and lays the crushed olivine stone in at least a surface layer between grasses of an artificial grass coat. It is a summary. It is also possible that the filling sand has a multi-layered structure, and at least the surface layer side is crushed olivine sand and the lower layer side is silica sand. Further, it is possible to use a mixture of crushed olivine sand and silica sand as the filling sand, and in this case, the crushed olivine sand needs to be 20% or more by weight.

[0006]

The present invention is configured as described above, and by using sand having high hardness as the filling sand to be laid between the turf of the artificial turf coat, the abrasion of the sand is reduced and the scattering of sand In addition to preventing the above, it is possible to prevent the coat from becoming concrete and further improve the appearance and texture.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a sectional view of an artificial turf coat embodying the present invention, where 1 is a coated ground, 2 is an artificial turf laid on the coated ground 1, and the artificial turf 2 is on a sheet-shaped substrate 3. , Resin turf 4 is integrally planted at predetermined intervals.

Filling sand 5 made of crushed olivine is scattered and filled between the turf 4 of the artificial turf 2. Olivine is a species that is generally rich in magnesium, has an irregular appearance with rounded grains, and refers to a group of magnesium-iron silicate minerals that crystallize in an orthorhombic system, and is also called olivine. Such olivine has crystals that usually have a simple crystal phase, and are aggregates of compound cones, cylinders and table surfaces, with a glassy luster, an olive green color, and a hardness of 61 / 2
〜7, specific gravity is 3.27〜3.37, which increases with the increase of iron content.

As the filling sand 5, olivine crushed sand and silica sand can be used separately or mixed and laid. In this case, the olivine crushed sand is laid on the surface layer of the filled sand 5. However, silica sand is used for the lower layer. When mixed and used, the crushed olivine sand is 2% by weight.
It must be 0% or more.

As for the layer thickness, for example, when the total layer thickness is 19 mm, it is preferable that the surface olivine crushed sand has a thickness of 7 mm and silica sand has a thickness of about 12 mm. Next, a comparison of the physical properties, colors and the like between olivine crushed sand and conventionally used silica sand is as shown in Table 1 below. As described above, according to the present invention, as the filling sand 5 to be laid and filled between the turf 4 of the artificial turf 2, the hardness and the specific gravity are large and the color of the artificial turf 2 is close to the green, so that the sand It is possible to reduce wear, prevent sand from scattering and bending, prevent the coat from becoming concrete, and further improve the appearance and texture.

[0011]

As described above, according to the present invention, since olivine crushed sand is used as the filling sand laid between the turf of the artificial turf coat as described above, the abrasion of the sand is reduced, and the scattering of sand and the bending of the sand are prevented under strong wind. In addition to being able to prevent the coat from becoming concrete, it also has the effect of improving the appearance and texture, and in addition to making it easier to see the line,
There is also the effect that the density of the sand is not noticeable, the green is emphasized throughout the appearance, and the texture is improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an artificial grass coat in which the present invention has been carried out.

[Explanation of symbols]

1 Coat ground 2 Artificial grass 3 Sheet-shaped substrate 4 Resin grass 5 Filled sand consisting of olivine crushed sand

Claims (2)

[Claims] 1. In the filling sand to be laid between artificial grass-coated grasses, olivine crushed sand is used as the filled sand, and the olivine crushed sand is laid on at least a surface layer between the artificial grass-coated grasses. Characteristic artificial grass coat filling sand. 2. The artificial sand-coated filler sand according to claim 1, wherein the filler sand has a multi-layer structure, at least the surface layer side is crushed olivine sand, and the lower layer side is silica sand.