JPS6098003A - Athletic field made of artificial turf - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to artificial turf, and more particularly to an athletic field made of sand-containing artificial turf suitable for golf course greens.

Sand-containing artificial grass, which is made by filling the grass grains with sand, has a characteristic and appearance similar to natural grass, so it is even used on golf course greens. . In this case, in order to make the green feel as soft as natural grass when stepped on with spiked shoes, artificial grass golf courses in Europe and the United States adopt a method of laying plastic foam under the artificial grass. . However, with this configuration, when it comes to so-called approach shots hit from relatively short distances, the ball does not bounce much and stops relatively well, but when it comes to long shots hit from relatively far positions such as the teeing ground or fairway, It has been pointed out that the ball bounces too much and does not stop as desired.

This invention was made in view of the above-mentioned drawbacks of the conventional grass.The purpose of this invention is to provide a soft feel similar to natural grass when stepped on with spiked shoes, and to provide a golf ball that is hit from all distances near and far. To provide an athletic field made of sand-containing artificial grass, which is improved so as to be able to perform almost the same behavior as a green made of natural grass, and is particularly suitable for the green of a golf course.

That is, the present invention provides a so-called sand-containing artificial lawn by interposing a second sand-containing artificial lawn between a base having a substantially smooth upper surface and a sand-containing artificial lawn laid on this base. It is characterized by a layered structure of grass, and aims to achieve the above object by utilizing the appropriate buffering effect of the second sand-containing artificial lawn.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the accompanying drawings.

Referring to the attached drawings, this artificial grass athletic field is
The base 1 has a substantially smooth upper surface.

In this case, the base 1 may be a permeable structure made of chestnut stone, crushed stone, etc., or may be a non-permeable structure made of concrete, asphalt, etc. In addition, as long as the upper surface is formed smoothly, the base plate 1 may have a slight inclination. An artificial lawn 2 is laid on this base 1, and fine-grained sand 3 is filled into the grass grains. If the sand-containing artificial lawn 4 is used, between this and the base 1, there is a second
An artificial lawn 5 containing sand is interposed.

This second sand-containing artificial lawn 5 is the first sand-containing artificial lawn 4.
Similarly, the grains of the first artificial lawn 6 are filled with sand 7, but the artificial lawn 6 used for this purpose does not look very good because it is covered by the first artificial lawn 4 containing sand. The grass may be of a low cost, and the density of the grass may be coarse enough to suppress the flow of the sand 7 due to tread pressure.

In this embodiment, the second sand-containing artificial lawn 5 has a single-layer structure, but it can also have a multi-layer structure if necessary. Further, as the artificial lawn 2 used for the first sand-containing artificial lawn 4, for example, polyamide, polyethylene terephthalate, polyurethane, polyvinylidene chloride,
Pile yarn is made from slit yarn made by slicing polypropylene or other film, or flat yarn is made by melt-spinning through a nozzle with irregularly shaped cross-sectional holes, and this is then planted on the backing base fabric as pile yarn. preferable. On the other hand, the sand 3 and 7 to be filled into the artificial lawns 2 and 6 is desirably fine silica sand such as No. 5 to No. 8 silica sand.

As described above, according to the present invention, since the second sand-containing artificial lawn 5 is interposed between the first sand-containing artificial lawn 4 serving as the playing surface and the base l, filling is carried out within the grass grains. The moderate assembly effect of the buffering effect of the sand 6 and the unique elasticity of the synthetic resin confectionery pieces planted on the artificial lawn 6 provides an athletic field that exhibits characteristics more similar to natural grass. be done. Furthermore, by selecting the sand filling amount of the second sand-containing artificial lawn 5 and the lawn density of the artificial lawn 6, the overall characteristics can be changed more precisely and easily. have.

In the above embodiments, the case where the green of a golf course is constructed has been described, but the present invention is not limited to this, and can of course be applied to, for example, a baseball field, a soccer field, a hockey field, etc. be.

[Brief explanation of drawings]

The figure is a partially sectional view showing an embodiment of the present invention. In the figure, 1 is a base, 2 and 6 are artificial lawns, 3 and 7 are sand, 4 is a first artificial lawn containing sand, and 5 is a second artificial lawn containing sand. Patent applicant Sumitomo Rubber Industries Co., Ltd. Agent Patent attorney Takuya Ohara

Claims (1)

[Claims] Laying artificial turf on a substantially smoothly formed base,
In addition, in the artificial grass athletic field formed by filling sand into the turf grains of the artificial turf, a second sand-filled artificial grass field formed by filling sand into the turf grains is provided between the base and the artificial turf. An artificial grass athletic field characterized by having grass interposed therein.