JPH093813A - Artificial turf unit structural body and artificial turf ground thereof - Google Patents

Abstract

PURPOSE: To provide an artificial turf unit structural body which can be laid out freely in conformity with the area of a construction site or the shape of a peripheral edge and which is light weight and easily portable and easily constructed and housed as well by laying out a laminated body comprising artificial turves and aggregates having a specific hardness on a bed rock. CONSTITUTION: Artificial turves tufted with piles 2 on a textile base 3 having a backing layer 6 on the rear surface are bonded with aggregates 4 with a bonding agent 7 and cut in proper size, thereby forming an artificial turf unit structural body. The aggregates 4 are required to provide hardness specified by JIS K-630 or more precisely, the aggregates demand for ASKER hardness (C type) ranging from 30 to 100 which are measured from the JIS code. A plurality of artificial turf structural bodies are connected by their fit-in connection mechanism on their edge areas and laid out on a bed rock 5, thereby forming an artificial turf ground. This construction makes it possible to construct easily and freely the ground in conformity with the area of a construction site or the shape of a peripheral edge.

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention can be laid according to the size of a laying place, is light and easy to carry, and can be laid and stored freely, and is easy and easy to use. The present invention relates to a turf unit structure and an artificial turf ground made of the same.

[0002]

2. Description of the Related Art Conventionally, an artificial turf ground is wound up in a form in which a backing material or an underpad material is attached to the back surface of an artificial turf made by tufting piles on a base cloth of a certain width, and then transported to the laying place However, it is fixed and laid and used as a sandless or sand-containing artificial turf structure, but it is generally laid by cutting it to a certain length and joining it with an adhesive or an adhesive tape. In this case, a complicated laying process such as putting in and out of the base is indispensable, and it was usual that a skilled construction expert requested the construction work.

[0003]

[Problems to be Solved by the Invention] However, in recent years, sports fever has become popular regardless of age or sex, and soccer fever, in particular, has soared rapidly since the J League was established. With the help of professional tennis, these sports enthusiasts are also following and actively permeating the people. Under such circumstances, gateball, grand golf, etc. have become popular even among old people for improving their health.

Artificial turf grounds are extremely popular as sports grounds, but the drawbacks are that the construction is complicated and that construction requires skill, and that once laid, it cannot be removed and the artificial turf is deteriorated. For this reason, it is necessary to lay the construction again, and in that case, there is also a big problem in terms of cost, such as having to request construction from an expert.

The present invention has been made in view of the above problems of the prior art.
It can be laid freely according to the size and peripheral shape of the laying place, and it is light and easy to carry and can be laid,
Units that are extremely easy and easy to store, can form a ground for old people and children, and need repairs,
By replacing only that unit, OK is provided, which is an extremely convenient and easy-to-use artificial turf unit structure and an artificial turf ground made of it.

According to the artificial turf unit structure of the present invention,
There is an advantage that not only a sports ground but also a multipurpose background can be easily and easily produced.

[0007]

The present invention adopts the following constitution in order to solve such a problem.

That is, the artificial turf unit structure of the present invention is a laminate of artificial turf and an aggregate having a hardness of 30-100 Asker (C type) hardness measured according to JIS K-6301. It is characterized by being a body.

[0009]

The present invention has been earnestly examined for the purpose of providing an artificial turf ground that does not require cost, labor, and skill in laying construction. Focusing on the tile carpet, the tile turf-like artificial turf ground is examined. This is the result of investing all of our energy into the study. However, the usage and condition of the tile carpet and the ground are completely different, and there is a problem that the momentum on the tile carpet cannot be put to practical use unless severe and severe conditions are cleared. As a result of further study on these points, it was clarified that it can be surprisingly and easily cleared by laminating aggregates having hardness and strength sufficient to clear these severe conditions.

The artificial turf unit structure of the present invention can be produced by changing the aggregate material depending on whether the base is indoors or outdoors. However, in any case, the base is concrete, asphalt concrete, wood, or a composite, laminate, or combination material of these, and in some cases, synthetic resin such as rubber or elastomer laminated or coated, the base is hard. It is preferable that the artificial turf unit structure of the present invention is constructed and constructed by a base. In the case of a base made of such a hard substrate, it is sufficient to use a hard and strong material as the aggregate of the artificial turf unit structure of the present invention.

As such an aggregate, the Asker (C type) hardness measured according to JIS K-6301 is 30 to 100,
Preferably made of a hard material in the range of 50-100,
For example, it is preferably composed of at least one selected from wood, light metal, synthetic resin, FRP and composite materials thereof. Separately, heavy metals other than light metals may be used,
From the standpoint of ease of laying construction and portability, first, in the present invention, a strong material is used from among hard and light materials, and light metals can be used in this sense. Among such hard materials, it is relatively flexible,
Furthermore, synthetic resin and FR, which are relatively elastic materials
P is more preferably used. Of course, a composite material composed of a combination of the above-mentioned various materials is also a material preferably used. Such a composite material has an advantage that hardness, toughness, flexibility, and even elasticity can be adjusted.

As the synthetic resin, a thermosetting resin can be used, but a flexible thermoplastic resin is preferably used. For example, one selected from polyolefin-based resins, vinyl-based resins and copolymers thereof, particularly ethylene-vinyl acetate copolymer, is preferably used because it has the performance required as the above-mentioned aggregate.
Of course, to give this aggregate cushioning properties,
The synthetic resin foam, for example, preferably 1.5 to 6
One having a low expansion ratio of up to 2 times, more preferably 2 to 3 times can be used.

The olefin resin referred to here is not particularly limited as long as it is a resin having an olefin as a basic skeleton. For example, a resin made of ethylene, propylene, butylene, a vinyl monomer, or the like, These copolymers, mixtures, etc. can be used. Particularly, the vinyl chloride-vinyl acetate copolymer has an advantage that flexibility can be adjusted and imparted in addition to the above-mentioned various characteristics as an aggregate. The aggregate of the present invention greatly affects the function of the fitting connection mechanism described later, and the first condition is that it is a hard and tough material in order to satisfactorily achieve the connection function. However, if the material is brittle or too soft, it is not possible to achieve the connecting function under the severe conditions of high momentum.

The fitting and coupling mechanism of the present invention is a mechanism capable of being fitted and coupled to the edge portion of the artificial turf unit structure, for example, any edge portion of the artificial turf unit structure. The aggregate of the above is projected, and the aggregates of the other edges are formed in a recessed shape. Such a shape may be formed only by the aggregate of the artificial turf unit structure or may be formed by punching out the artificial turf unit structure. In such a fitting and coupling mechanism, a pair of a projecting male mold and a recessed female mold is usually formed on one artificial grass unit structure. Only the protruding male type is included in the unit structure.
The other artificial turf unit structure may be formed by forming only concave female molds and combining them, but in this case, it is necessary to properly arrange the male and female molds. is there. In any case, it is preferable that such a fitting and coupling mechanism has a shape having a catching function in the plane direction so as to withstand the heavy exercise of the sports ground. As a typical example of such a shape, a mushroom shape is preferably used, but the shape is not limited to such a shape, and a more complicated shape may be used. Further, when the fitting coupling mechanism is hidden by the artificial turf of the artificial turf unit structure, it may have excellent appearance and fashionability.

The artificial turf referred to in the present invention is mainly made of ordinary base fabric (woven fabric) tufted with piles.
Artificial grass made by knitting with double Russell or molded artificial grass is used. The napped portion mainly has a cut pile shape, but various napped shapes such as a loop shape or a mixture thereof can be used.

Such piles are mainly made of nylon (polyamide type resin) or polyolefin type resin, but among these piles, nylon yarns (film split yarns, monofilaments) are used for the ground and have a heat history. As far as the shrinkage rate of boiling water is low, it is preferably 8% or more, and more preferably 9%.
% Or more, particularly preferably 10% or more, which has a high shrinkage, and has a pile property that is soft, and, in the case of artificial sand containing sand, a function of controlling the hardening phenomenon of sand. It is good because it exerts the above effect and prevents the ground from hardening. Such an effect is also exhibited by using a pile having a crimp of about the degree or more,
Of course, it is preferable to adopt a configuration in which these can exert a synergistic effect.

The artificial grass may have a backing layer on the back surface of the base cloth, or may further have an underpad layer or a cushion layer. In particular, the under-pad layer and cushion layer are indispensable for a soft and elastic player-friendly ground structure.

In the artificial grass unit structure of the present invention, the above-mentioned artificial grass may be directly bonded to the aggregate, but preferably the artificial grass is laminated with a backing material, an underpad layer, a cushion layer and the like. After the structure is formed, the artificial grass structure is joined to the aggregate. The backing material is used for pile prevention, but the underpad layer and cushion layer have the required softness, repulsion elasticity, and appropriate vibration damping properties (vibration damping characteristics) for the ground.
In order to provide the above, the artificial grass and the aggregate are interposed and laminated.

The artificial grass laminate is cut into an appropriate size to form a unit structure. Such a unit structure is mainly rectangular, but it can be cut into various shapes such as a circular shape, an elliptical shape, or a trapezoidal shape to form a unit.

The artificial grass unit structure having a water-permeable function or water-impermeable can be used as required. In particular, in forming the sand-containing artificial grass ground, it is preferable to form the ground with an artificial grass unit structure having a water permeable function.

The artificial turf gland of the present invention is formed by connecting a plurality of the above-mentioned artificial turf unit structures by a fitting connection mechanism at their edges and laying them on a base. . In this case, the peripheral portion of the laying place may be too wide or too small in the size of the artificial turf unit structure, but in such a case, in accordance with the size and shape of the laying place, A part of the artificial turf unit structure end is cut, and the artificial turf unit structure is laid in a desired shape. Such artificial turf ground can be used as various sports grounds such as baseball, volleyball, badminton, dodgeball, gateball, soccer, and tennis. In such a sports ground, each sport requires a ground or court with a specific line drawn, and the artificial grass with such a line can be incorporated in the artificial grass unit structure of the present invention. By adopting such a configuration, by laying this specific unit, it is possible to lay another sports unit immediately when needed even in one stadium, so it is extremely labor-saving in a very short time. The surprising advantage is that you can quickly change to the desired ground. It can be easily made into another coat (ground) by the hand of a child or an old man.

The present invention will be further described with reference to the drawings. FIG. 1 is a sectional view showing an example of an artificial turf unit structure of the present invention. In this example, the artificial grass 1 is used as the base cloth 3 and the pile 2 is used.
A tuft of the above is used, and this is laminated on the aggregate 4 and laid on the base 5. This artificial turf 1 is coated with a vinyl chloride resin as a backing material 6 to impart morphological stability to the structure in addition to preventing the pile from coming off. It is stuck to 4.

FIG. 2 is a plan view showing an example of the artificial turf unit structure of the present invention. In this example, the structure is punched and a fitting connection mechanism is provided at the peripheral edge of the structure, and a male die 8 and a female die 9 are simultaneously formed. As shown in this figure, two protrusions (male type) and one recess (female type)
Alternatively, two protrusions (female type) may be used to form one protrusion (male type), but there is no limitation to this, and independent protrusions may be formed. Good.

FIG. 3 is a schematic view showing another example of the fitting and coupling mechanism according to the present invention, showing a male shape. The female mold is naturally formed in a shape that fits the male mold. FIG. 4 is a cross-sectional view showing another example of the artificial grass unit structure of the present invention. In this example, the fitting and connecting mechanism is different from that of FIG. 2, and the male mold 8 and the female mold 9 are formed only of the aggregate, and the protrusion and the recess are provided within the thickness of the aggregate. Was
That is, it has the structure shown in the figure. According to this fitting and coupling mechanism, the concealing effect of the artificial turf is obtained, and in addition to providing a gland excellent in appearance and fashionability, the coupling portion is extremely resistant to coming off.

By connecting a plurality of artificial turf unit structures of the present invention, it is possible to freely adjust the balance characteristics of cushioning property and impact resilience, and to easily and easily provide a ground suitable for the type of sport. You can

[0026]

EXAMPLES Examples and comparative examples according to the present invention will be described below.

Example 1 Using a pile formed by crimping nylon 6 monofilament (450 d), a plain fabric made of polyester fiber as a base fabric (weight per unit area: 350 g / m ^2, vertical length: 27 strands / in, width: ² g)
5 piles / in) were used and the pile was tufted to obtain an artificial lawn machine. A vinyl chloride resin (solvent solution) was pre-coated on the back side of this greige machine and dried, then knife-coated on it and dried to 600 g / m ² , thickness 2
mm backing layer was formed to manufacture artificial turf. The artificial turf structure was manufactured by sticking this artificial turf to the adhesive surface of an aggregate coated with a urethane-based adhesive at 300 g / m ² .
The aggregate used here is a sheet of ethylene-vinyl acetate copolymer (foaming magnification 2 times: thickness 10 mm).

This artificial turf structure is punched by applying a pressing pressure with a punching machine using a Thomson blade, and an artificial turf unit structure (2 m × 2) with a fitting connection mechanism shown in FIG.
0.98 m) was formed.

350 units of this unit were prepared, carried into a gymnasium, and fitted and connected to form a mini soccer court. This coat took eight people and could be formed in an hour. This corresponds to a reduction of 10 times or more compared with the time required for producing a normal artificial grass coat.

When 5 to 5 people were used to play a match using this coat, the ball was evaluated to be extremely good in rolling and repulsion, and the coat was checked after the match. There was no problem with the connection point.

Examples 2 and 3 In Example 1, a wood plate having a thickness of 7 mm was used as the aggregate. However, as artificial turf, on the backing layer surface of the artificial turf of Example 1, a chloroprene foam sheet (thickness 3 mm: apparent density 0.2 g) was further used as an underpad layer.
/ M ³ ) was laminated via a chloroprene rubber adhesive to produce an artificial grass structure in the same manner as in Example 1 (Example 2).

This artificial turf structure was formed by a punching machine using a Thomson blade in the same manner as in Example 1 to form an artificial turf unit structure with a fitting and coupling mechanism, and a mini soccer court was similarly prepared and played. I was asked to.

As for the results, the same evaluation as in Example 1 was obtained,
Perhaps because it is lighter and easier to carry than the unit of Example 1,
The time required to form the coat was 50 minutes. However, because the aggregate is made of wood and the floor of the gymnasium is also made of wood, noise may be generated due to the unevenness.

Therefore, in the second embodiment, the order of laminating the wood board and the underpad layer is changed, that is, the wood board is first attached to the backing layer surface of the artificial grass, and then the underpad layer is laminated. The artificial turf unit structure was formed, and a mini soccer court was created in the same manner and asked to play it (Example 3).

As a result, substantially the same evaluation as in Example 1 could be obtained, and the problem of sound was solved.

[0036]

INDUSTRIAL APPLICABILITY The present invention can be laid freely according to the size and peripheral shape of the laying place, is light and easy to carry, and is extremely easy and easy to lay and store, and is suitable for the elderly and children. An artificial turf unit structure and an artificial turf gland made of the artificial turf unit structure, which can form a ground, and can be easily replaced. According to the artificial turf unit structure of the present invention, there is an advantage that not only a sports ground but also a multipurpose background can be easily and easily produced.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of an artificial turf unit structure of the present invention.

FIG. 2 is a plan view showing an example of the artificial turf unit structure of the present invention.

FIG. 3 is a schematic view showing another example of the fitting connection mechanism according to the present invention.

FIG. 4 is a cross-sectional view showing another example of the artificial grass unit structure of the present invention.

[Explanation of symbols]

 1: Artificial grass 2: Pile 3: Base fabric 4: Aggregate 5: Base material 6: Backing layer 7: Adhesive layer 8: Male type 9: Female type

Claims (24)

[Claims] 1. An artificial turf which is a laminate of an artificial turf and an aggregate having a hardness of 30-100 asker (C type) hardness measured according to JIS K-6301. Unit structure. 2. The artificial turf unit structure according to claim 1, wherein the aggregate has the Asker (C type) hardness of 50 to 100. 3. The aggregate is wood, light metal, synthetic resin, F
At least one selected from RP and composite materials thereof
The artificial turf unit structure according to any one of claims 1 to 2, which is composed of seeds. 4. The artificial turf unit structure according to claim 1, wherein the aggregate is a thermoplastic resin having flexibility. 5. The artificial turf unit structure according to claim 1, wherein the aggregate is one kind selected from a polyolefin resin, a vinyl resin and a copolymer thereof. 6. The artificial grass unit structure according to claim 1, wherein the aggregate is an ethylene-vinyl acetate copolymer. 7. The artificial turf unit structure according to any one of claims 1 to 6, wherein the artificial turf unit structure has a fitting connection mechanism which can be fitted and connected to each other at an edge portion thereof. 8. The fitting coupling mechanism is configured such that an aggregate at any one edge of the artificial turf unit structure is projected and an aggregate at another edge is recessed. Claim 7
The artificial turf unit structure described. 9. The artificial grass unit structure according to claim 7, wherein the fitting connection mechanism is formed by punching out the artificial grass unit structure. 10. The fitting coupling mechanism is formed by forming a pair of a projecting male mold and a recessed female mold on one artificial turf unit structure, respectively. The artificial turf unit structure described in. 11. The artificial turf unit structure according to claim 7, wherein the fitting connection mechanism has a shape having a hooking function in a plane direction. 12. The artificial turf unit structure according to claim 11, wherein the shape having a hooking function in the plane direction is a mushroom shape. 13. The artificial turf of the artificial turf unit structure hides the fitting connection mechanism.
The artificial grass unit structure according to any one of 10 to 12. 14. The artificial grass unit structure according to claim 1, wherein the artificial grass unit structure has a rectangular shape. 15. The artificial grass unit structure according to claim 1, wherein the artificial grass has a backing layer. 16. The artificial grass unit structure according to claim 1, wherein the artificial grass has an underpad layer or a cushion layer. 17. The artificial grass unit structure according to claim 1, wherein the artificial grass is molded artificial grass. 18. The artificial grass unit structure according to claim 17, wherein the molded artificial grass is made of a polyolefin resin. 19. The artificial grass unit structure according to claim 1, wherein the artificial grass is sand-containing artificial grass. 20. The artificial grass unit structure according to claim 1, wherein the artificial grass unit structure has a water-permeable function. 21. A plurality of the artificial turf unit structures according to any one of claims 1 to 20 are connected and laid by a fitting connecting mechanism at their edges. Artificial grass ground to do. 22. The artificial turf gland according to claim 21, wherein a part of the artificial turf unit structure end is cut in conformity with the shape of the peripheral edge of the installation site. 23. The artificial grass ground according to claim 21, wherein the artificial grass ground is for baseball, volleyball, badminton, gateball, soccer or tennis. 24. The artificial turf ground according to claim 21, wherein the artificial turf has a line for each sports item.