KR20160117025A

KR20160117025A - Elastic infill for artificial turf

Info

Publication number: KR20160117025A
Application number: KR1020150045588A
Authority: KR
Inventors: 엄기석; 김기창
Original assignee: 주식회사 필드원종합건설
Priority date: 2015-03-31
Filing date: 2015-03-31
Publication date: 2016-10-10

Abstract

The present invention relates to an elastic filling material for artificial turf. More specifically, a plurality of elastic filling materials are embedded in artificial turf to absorb shock applied to the artificial turf, maximize an elastic repulsion force, enable water to be smoothly stored, and enable ventilation to be smoothly performed, thereby preventing a temperature of the artificial turf from rising by radiant heat. According to a desirable embodiment of the present invention, a plurality of elastic filling materials for artificial turf are evenly embedded in artificial turf comprise: a body having a circular shape and a constant thickness; and at least two opening holes formed in the body to maximize an elastic repulsion force of the body.

Description

[0001] Elastic infill for artificial turf [0002]

The present invention relates to an elastic filler for artificial turf which is installed on a plurality of artificial turf, and more particularly, to an artificial turf which absorbs shock applied to artificial turf and maximizes elastic repulsive force and smooth water storage and ventilation, To an elastic filler for artificial turf which can prevent the temperature rise of grass.

In general, natural grass is widely used not only for garden landscaping and golf course fairways but also for sports fields such as baseball grounds, soccer fields, school stadiums and so on.

However, when natural grass is used in various stadiums, due to intense competition, the ground is partially exposed due to plowing and cutting of the grass, so that the surface of the stadium is not uniform, And it is troublesome to re-assemble the lawn to the damaged area in severe cases.

In order to solve these problems, artificial turf which is easy to maintain after construction without being influenced by weather and seasonal environmental conditions is widely used although the initial cost is higher than the natural grass in recent years, .

When such artificial turf is used in an athletic field, the content of the game is influenced by the prevention of injury of the athlete, shock absorption, vertical deformation, rolling resistance, whiteness and repulsion, Elastic chips must be installed. It is also published on the FIFA homepage, and KS M 3888-1 was enacted in 2010 based on this.

Such conventional fillers are mainly prepared by crushing waste tires or waste rubber which can be mainly regenerated in order to impart resilience such as natural grass. However, in order to overcome this problem, the styrene-ethylene-butadiene-styrene SEBS) has been developed and used.

However, the filler made of styrene-ethylene-butadiene-styrene (SEBS) has a problem that excessive cost is incurred because a large amount of filler is injected in order to prevent injury and increase workability.

In addition, due to the increase of radiant heat due to sunlight, there is a problem that the artificial turf raises the temperature of the stadium where the artificial lawn is installed, thereby lowering the motility of the athlete who is running the game. In order to reduce radiant heat, a sprinkler is installed, These sprinklers can not be used while using artificial turf, so there is a limit to lowering the radiant heat.

It is an object of the present invention to provide an artificial turf capable of absorbing impact applied to artificial turf to maximize elastic repulsive force and smooth water storage and ventilation, To provide an elastic filler.

The object of the present invention is to provide an elastic filling material for artificial turf which is formed by laying a plurality of evenly distributed artificial turf layers on a synthetic turf to form a cushion layer. The elastic filling material for artificial turf has a circular body and a constant thickness, And an air gap hole formed in at least two of the air gap holes.

According to a preferred aspect of the present invention, the diameter of the body is 2.5 mm to 3.3 mm, the length is 1.5 mm to 4.0 mm, the bulk density is 0.55 cm 3, the specific gravity is 1.40 m 3, 72 < / RTI >

According to a preferred feature of the present invention, the body is formed of a thermoplastic rubber material.

According to a preferred aspect of the present invention, the cavity hole includes a fixing hole formed near the center of the body so that the center of the body is not changed as much as possible, and a fixing hole formed in the fixing hole so that an outer side of the body is variable, And a flexible hole extending outwardly of the elastic chip.

According to the above-described elastic filler for artificial turf according to the preferred embodiment of the present invention, a small amount of water is stored in the cavity hole during the rainy season and the ventilation is smoothly performed. Thus, And the cost is reduced by reducing the amount of raw material input due to the cavity hole.

1 is a perspective view of an elastic filler for artificial turf according to an embodiment of the present invention.
2 is a perspective view of an elastic filler for artificial turf according to another embodiment of the present invention.
3 is a view showing the state of use of the elastic filler for artificial turf according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to illustrate the present invention in a manner that will be readily apparent to those skilled in the art, And this does not mean that the technical idea and scope of the present invention are limited.

A plurality of elastic fillers (1) for artificial grass according to a preferred embodiment of the present invention are formed on a synthetic turf to form a plurality of cushion layers. The body (10) has a circular shape and a predetermined thickness. And at least two void holes (20) formed in the body (10) so as to maximize the elastic repulsive force of the body (10).

Hereinafter, the constituent members of the elastic filler 1 for artificial turf according to the present invention and the connection relation thereof will be described with reference to FIGS. 1 to 3. FIG.

Here, the body 10 serves as a weight body for forming a cushion layer by being laid on artificial turf, as shown in FIG. 3, in order to achieve an effect similar to that of actual natural grass movement. .

The body 10 has a diameter of 2.5 mm to 3.3 mm, a length of 1.5 mm to 4.0 mm, a bulk density of 0.55 cm 3, a specific gravity of 1.40 m 3, , And the shore A is preferably formed to have a hardness of 52 to 72. [

The above-described body 10 is not limited to a circular shape but may be formed in various shapes and shapes such as elliptical, triangular, square, star, heart, and the like.

On the other hand, a void hole 20 is formed on the body 10, and when the external force is applied to the body 10, the elastic bulb 20 maximizes the elastic repulsive force and prevents the temperature of the artificial turf from rising And occupies at least 10% of the area of the body 10, and is formed of at least two or more.

When at least two voids 20 are formed in the body 10, the voids 20 are preferably formed at positions opposite to each other in the body 10 as shown in FIG. 1 It is preferable that the void hole 20 is radially positioned on the body 10 as shown in FIG. 3 when three or more void holes 20 are formed in the body 10.

The gap hole 20 has a fixing hole 21 formed near the center of the body 10 and a fixing hole 21 extending from the fixing hole 21 to the outside of the body 41 22, the fixing hole 21 may be formed in various shapes such as a circle, an ellipse, a triangle, and a square. When the external force is applied to the body 10, Is not changed as much as possible, and the ventilation is smoothly performed, thereby preventing the temperature of artificial turf from rising due to radiant heat of sunlight.

The variable hole 22 may be formed to extend outwardly of the body 10 in the fixing hole 21 described above so that the width of the variable hole 22 gradually increases or decreases. The outer side of the body 10 can be varied to maximize the elastic repulsive force, thereby preventing injury to personnel operating on artificial turf.

Therefore, when the body 10 has a structure in which at least two voids 20 are formed, the resilient repulsive force is maximized by the mixture, and when water is stored during rainy weather, Or to reduce its temperature.

That is, when the elastic filler (1) for artificial turf according to the present invention is laid on the surface of artificial turf, the heat of the artificial turf is reduced and the temperature can be kept lower than that of artificial turf. It enables smooth activities.

1: Elastic filler
10: Body
20: void hole
21: Fixing hole
22: variable hole

Claims

An elastic filler for artificial turf which is formed by laying a plurality of grooves uniformly on an artificial turf to form a cushion layer,
A body having a predetermined thickness in a circular shape,
Wherein at least two void holes are formed in the body so as to maximize the elastic repulsive force of the body.

The method according to claim 1,
The body has a diameter of 2.5 to 3.3 mm, a length of 1.5 to 4.0 mm, a bulk density of 0.55 cm 3, a specific gravity of 1.40 m 3, and a shore A of 52 to 72 Elastic filling material for artificial turf.

The method according to claim 1,
Wherein the body is formed of a thermoplastic rubber material.

The method according to claim 1,
The cavity hole has a fixing hole formed near the center of the body so that the center of the body is not changed as much as possible, and an outer hole of the fixing hole is formed so as to extend outward from the fixing hole in the fixing hole, Characterized in that the elastic filler comprises a flexible hole.