KR101681067B1 - The Water Permeable Artificial Turf - Google Patents

Abstract

TECHNICAL FIELD The present invention relates to an artificial turf that smoothes water of good quality, and more particularly, to an artificial turf that is made of waste tire powder so that an elastic mat can permeate smoothly through voids between waste tire powders.

Description

The Water Permeable Artificial Turf

TECHNICAL FIELD The present invention relates to an artificial turf capable of smooth permeability, and more particularly, to a permeable artificial turf having an elastic mat made of waste tire powder and capable of smooth water permeation through voids between waste tire powder.

Artificial turf is one of the specially used landscaping materials and is a substitute for artificial turf made of grass. Artificial turf can be used in various fields such as golf course, playground, indoor interior and leisure facility because it can keep green in a steady season, is not restricted by environmental conditions, is easy to manage after construction, and has various advantages such as reducing environmental pollution Especially, in the case of various stadiums where various athletic events are held, it takes much time to construct and grow natural turf, and it is difficult to maintain and use artificial turf in recent years.

In the case of artificial turf construction in a sports ground, a drainage performance is inevitably lowered in case of a rainfall, so that a drainage facility is indispensably required. Conventionally, a drainage block is provided between the buffer pad and the artificial turf mat Each section was bonded using adhesive. Korean Unexamined Patent Application Publication No. 10-2005-0090699 ("Artificial Turf Drainage Drainage Block ", Sep. 24, 2005) discloses a drainage block for helping drainage of such conventional artificial turf.

However, when the drainage block is installed, it takes a long time to manufacture and construct the drainage block, and since the drainage block and the artificial grass are bonded by the adhesive, it is difficult to securely connect the drainage block, There is a problem that it interferes with the movement of the body. Also, when the rainwater is not drained during the rainy season and the water is drained between drainage blocks, the bonding surface joined by the adhesive will be lifted. If a large amount of adhesive is used to reduce floating of the bonding surface, So that drainage can not be smoothly performed.

Korean Patent Laid-Open No. 10-2005-0090699, "Drainage block for artificial turf field," 2005.09.14.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an elastic mat with a waste tire powder and a polyurethane binder, , And to provide a permeable artificial turf which can easily drain off through the gap between the waste tire powder.

An artificial grass mat (100) comprising: a synthetic grass (100) having a protruding portion (110) protruding downward on a lower surface thereof; And 90 to 95% by weight of the waste tire powder, 5 to 10% by weight of a polyurethane binder, compression-molded by a compression press, and an engaging groove 210 formed to correspond to the protrusion 110 on one side, And an elastic mat (200) to which the protrusion (110) is coupled to the coupling groove (210), and is permeable to water through the gap between the waste tire powder.

The protrusion 110 includes a column portion 111 extending downward and a head portion 112 formed below the column portion 111 to have a larger cross section than the column portion 111, .

The permeable artificial turf may further include fixing means 300 for inserting the artificial turf mat 100 and the elastic mat 200 by inserting the permeable artificial turf inward from the upper surface or the side surface of the permeable artificial turf, The means 300 may be configured to secure the artificial turf mat 100 and the resilient mat 200 with either a b pin, a t pin, or a t pin.

The waste tire powder may have a particle size of 0.7 to 1.5 mm and the other surface of the elastic mat 200 may be a waste tire powder having a particle size of 1.5 mm.

The permeable artificial turf may be formed such that the thickness of the elastic mat 200 is 10 to 20 mm.

The artificial grass of the water permeable artificial turf may be configured such that the protrusion 110 and the coupling groove 210 are coupled by an adhesive means and the adhesive means is applied to the vertical surface of the elastic mat 200.

The artificial turf of the present invention is formed by mixing a waste tire powder and a polyurethane binder and forming an elastic pad by compression molding to form various void spaces between waste tire powders, It is effective.

The artificial lawn of the present invention has an artificial turf mat and an elastic mat bonded to each other by the engagement of the protrusions.

1 is a schematic view of a permeable artificial turf of the present invention
Fig. 2 is a view showing an embodiment of a water permeable artificial turf according to the present invention
Fig. 3 is a graph showing the results of a test for containing heavy metals in the water-
Fig. 4 is a table showing the physical property test results of the permeable artificial turf of the present invention

Hereinafter, the technical idea of the present invention will be described more specifically with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the technical concept of the present invention, are incorporated in and constitute a part of the specification, and are not intended to limit the scope of the present invention.

1 is a schematic view of a pitcher artificial turf of the present invention.

As shown in FIG. 1, the artificial turf pitcher of the present invention is largely formed by including a synthetic turf mat 100 and an elastic mat 200.

The artificial turf mat 100 includes protrusions 110 protruding downward on the lower surface of the artificial grass 100 at predetermined intervals, and a plurality of the protrusions 110 are spaced apart from each other by a predetermined distance.

The artificial turf mat 100 is formed of a thermoplastic resin that is easy to process by extrusion or injection molding. Among them, it is preferable to use polypropylene, polyethylene or the like which is commonly used in thermoplastic resin and easy to obtain And it is more preferable to form low density polyethylene which is a resin with good melting property in consideration of recyclability.

Alternatively, the artificial turf mat 100 may be formed of a flat fabric or a planar material made of synthetic resin, and the artificial turf may be disposed by a method such as punching.

The artificial turf is preferably formed of a thermoplastic resin that is easy to process, and is more preferably formed of the same resin as that used for the artificial turf mat 100 to facilitate recycling.

The elastic mat (200) is composed of 90 to 95% by weight of waste tire powder and 5 to 10% by weight of a polyurethane binder, and the composition is injected into a compression press and compacted for 2 to 10 minutes. A coupling groove 210 corresponding to the projection 110 is formed on one side of the elastic mat 200 to be depressed downwardly so that the projection 110 is engaged with the coupling groove 210, So that the stormwater is pumped through the gap between the two.

The protrusion 110 includes a column portion 111 extending downward and a head portion 112 formed below the column portion 111 and having a larger cross section than the column portion 111 A plurality of the protrusions 110 are protruded from the synthetic mat 110 at a position spaced apart by a predetermined distance in the longitudinal and transverse directions of the artificial mat 110. According to the shape of the protrusion 110, the coupling groove 210 is formed in a shape corresponding to the shape of the protrusion 110. A plurality of the protrusions 110 are fitted into the coupling groove 210, The artificial turf mat 100 and the resilient mat 200 are firmly coupled to each other by tightly fitting the coupling groove 210.

At this time, an adhesive means which is not affected by water such as urethane adhesive can be used so that the artificial turf mat 100 and the elastic mat 200 can be more firmly coupled. The adhesive means is applied to the protrusion 110 and the coupling groove 210 to connect the artificial turf mat 100 and the elastic mat 200. When the adhesive means is applied to the lower surface of the artificial turf mat 100 or the upper surface of the elastic mat 200 to be combined with the horizontal surface of the elastic mat 200, have. Therefore, the water permeable artificial turf of the present invention is advantageous in that drainage is easier in case of rainstorming by applying an adhesive to the vertical surface of the elastic mat 200, not the horizontal surface, thereby reducing the horizontal area where drainage is impossible.

FIG. 2 is a combined embodiment of the permeable artificial turf of the present invention.

2, the water permeable artificial turf of the present invention is further formed with fixing means 300 for firmly coupling the artificial turf mat 100 and the elastic mat 200. In order to easily fix the artificial turf mat 100 and the elastic mat 200, two mats can be fixed at the same time. Accordingly, the fixing means 300 is formed of any one selected from among a b pin, a t-pin, and a t pin, and is inserted inward from the upper side or the side of the permeable artificial turf to form the artificial turf mat 100 and the elastic mat 200 . 4 (a) and 4 (b), the protrusion 110 and the coupling groove 210 are coupled to each other, and then the fixing means (not shown) 300 of the artificial turf mat 100 may be put in close contact with the upper surface of the elastic mat 200 to prevent lifting of the synthetic turf mat 100. 4 (c), the artificial turf mat 100 and the resilient mat 200 may be separated from each other by a strong motion, The elastic mat 200 can be inserted into the side surface of the elastic mat 200 to prevent lifting of the edge.

In the meantime, since the water permeable artificial turf of the present invention is permeable to water through the gap between the waste tire powder without a separate device for draining water, the elastic mat 200 should be formed so that drainage can be smoothly performed. Therefore, the size of the waste tire powder constituting the elastic mat 200 of the present invention is formed to be within 0.7 to 1.5 mm. When the size of the waste tire powder is less than 0.7mm, the pores between the powders are too small. If there is much pore size, the pitch is permeated from the upper surface to the lower surface. There is a problem that the resilient mat 200 is broken due to tearing. Therefore, it is preferable to use the waste tire powder having a size of 0.7 to 1.5 mm.

The water permeable artificial turf of the present invention is constructed by flattening the bottom surface of concrete or the like and arranging it on the upper surface thereof. The water permeable artificial turf to be disposed should be fixed to the floor smoothly even in a user's violent motion. Therefore, the lower surface and the bottom surface of the elastic mat 200 must have a frictional force such that the elastic mat 200 does not move. Therefore, the lower surface of the elastic mat 200 is formed such that the size of the waste tire powder is 1.5 mm or more So as to further increase the frictional force.

In addition, since the water-permeable artificial turf of the present invention is generally used in a sports field, it is necessary to provide a feeling of buffering action while giving the user a feeling similar to pressing the natural grass. Therefore, the permeable artificial turf of the present invention is formed such that the thickness of the elastic mat 200 is 10 to 20 mm. When the thickness of the resilient mat 200 is less than 10 mm, the shock absorbing effect is deteriorated and the impact transmitted to the user's joints can not be effectively blocked. When the thickness is 20 mm or more, the shock absorbing action is overcome to interfere with the movement. You can give a bunch. Therefore, it is preferable that the thickness of the elastic mat 200 is 10 to 20 mm, which gives a feeling similar to the stepping on the natural grass, and does not give any strain to the joints.

In the meantime, the water-permeable artificial turf of the present invention reuses the discarded waste tires. If the heavy metals contained in the waste tire leak out, it can adversely affect the health of the user. It is necessary to check whether or not heavy metal is detected.

Fig. 3 is a table showing the contents of heavy metals in Korea Life Environment Test Institute by producing the artificial turf of the present invention. As shown in FIG. 3, the permeable artificial turf of the present invention was tested for the detection of lead, cadmium and chromium in heavy metals, and as a result, the heavy metals were not detected and their stability was recognized.

4 is a physical property test chart of the elastic mat 200 used in the permeable artificial turf of the present invention. According to the physical property test table, the elastic mat 200 of the present invention has a tensile strength of 20 MPa or more on the upper surface, a tensile strength of 10 MPa or more on the lower surface, an elongation of 60% or more when the elongation of the upper surface is 100% The mat (200) can be used semi-permanently because it has excellent tensile strength, wear resistance, durability and weatherability because it can easily absorb the impact caused by the user's severe exercise due to the lower rate of dimensional change due to less than 10% .

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: Artificial grass mats
110: protrusion
111: column portion 112: head portion
200: Elastic mat
210: coupling groove
300: fixing means

Claims (6)

(110) formed at an upper portion of the artificial turf at predetermined intervals and extending downwardly at a lower portion thereof and a head portion (111) formed to have a larger cross section than the post (111) below the post A synthetic grass mat (100) protruding from the protruding portion (110);
And 90% to 95% by weight of waste tire powder, and 5% to 10% by weight of a polyurethane binder. An engaging groove 210 having a shape corresponding to the protrusion 110 is formed on one side of the engaging groove 210, An elastic mat (200) to which the elastic member (110) is coupled; And
And a fixing means 300 formed of a fin type pin and coupled to and fixed to a side surface of the artificial turf mat 100 and the elastic mat 200,
The size of the particles of the waste tire powder is 0.7 to 1.5 mm and the size of particles of the waste tire powder on the lower surface of the elastic mat 200 is 1.5 mm or more. Is pitched,
Wherein the artificial grass mat (100) and the resilient mat (200) are coupled to each other by adhesive means on the vertical surface of the inner surface of the coupling groove (210).
delete delete delete The method according to claim 1,
The water-permeable artificial turf comprises:
Wherein the elastic mat (200) has a thickness of 10 to 20 mm.
delete

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