JPH0444644Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a sand-preventing artificial turf ground that prevents sand spread within the turf from flowing out into side gutters.

[Conventional technology]

2. Description of the Related Art So-called grounds such as baseball fields, tennis courts, gateball fields, and golf courses are replacing natural grounds such as soil, clay, and grass with artificial turf grounds laid with artificial turf.

This artificial turf field is one in which artificial turf is laid on a stable base such as asphalt or concrete, but recently, artificial turf fields containing sand have been attracting attention, in which sand is sprinkled within the grains of the turf.

Artificial turf grounds cannot absorb large amounts of rainwater regardless of the presence or absence of sand, so the stable foundation is slightly sloped (water gradient) and gutters are installed along the edges.

FIG. 2 is a sectional view of the end side of a conventional sand-containing artificial turf ground.

Artificial grass 2 is placed on the concrete stable base 1
is laid, and sand 3 is poured into the grass. A gutter 4 is provided on the end side of the stable base 1,
It serves as an outlet for rainwater.

[Problem that the invention attempts to solve]

However, in such conventional sand-containing artificial turf grounds, as shown in FIG.
The sand 3 spread on the side edges of the ground not only flows into the side gutter 4 together with rainwater, impairing the flow of the gutter, but also causes the sand on the ground to gradually decrease during long-term use. There were some flaws.

The present invention was developed as a result of studies to solve the drawbacks of conventional sand-containing artificial turf grounds.
This is what was obtained.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an artificial ground that prevents sand from flowing out.

[Means for solving problems]

In order to achieve the above object, the present invention takes the following measures.

In other words, the sand-retaining artificial turf ground of the present invention is a sand-containing artificial turf ground in which artificial turf is laid on a stable base having side grooves on the end sides, and sand is sprinkled within the grass grains. This is characterized by the sand on the edges of the artificial turf being solidified with synthetic resin.

The ground in this invention is a general term for baseball fields, tennis courts, gateball fields, golf courses, amusement parks, garden balconies, etc.

A stable foundation is a foundation made of concrete, asphalt, etc.

End-side gutters are drainage ditches installed in breaks in the grass, such as around grounds, between courts, and between holes on golf courses.

The artificial turf used in the present invention can be of conventionally known type, and is made by planting pile threads made of synthetic resin such as nylon or polypropylene in a loop shape on a base fabric, and cutting part or all of this loop to create a turf shape. It is.

Artificial turf can be laid directly on the stable base, but cushioning materials such as felt can also be provided in between.

The most important feature of this invention is that the sand on the edge of the artificial grass facing the gutter is solidified with synthetic resin. The synthetic resin is preferably prepared by pouring a resin solution dissolved in an organic solvent over the sand, or by impregnating the sand with an aqueous solution of a water-soluble ultraviolet curable resin. Specific synthetic resins include organic solvent type resins such as vinyl acetate, synthetic rubber, acrylic, and polyurethane, and photocurable resins include photopolymerization type photosensitive resins and photoduplexing type photosensitive resins. can.

Rather than forming a complete resin layer, these synthetic resins (adhesives) solidify the sand to some extent, prevent the sand from flowing out, and are preferably suitably porous to allow rainwater to pass through.

For this purpose, the type of resin and solution concentration should be selected appropriately depending on the particle size of the sand, the thickness of the sand layer, etc.

There are no particular restrictions on the sand that is sprinkled within the grass, but
Natural silica sand with a high silica content is preferred.

Figure 1 is a sectional view of the end side of the sand-retained artificial turf ground of the present invention, and shows the stable concrete base 1.
An artificial turf 2 in which nylon pile threads 5 are flocked to a base fabric 6 is laid on top of the turf. A side gutter 4 is provided on the edge of the stable base 1. Sand 3 is spread within the grain of the artificial turf 2, and the edges thereof are hardened with an ultraviolet curing synthetic resin 7.

[Effect]

The sand facing the side gutter of the sand-preventing artificial turf ground of the present invention is hardened with resin along the side gutter. In this part, the sand particles are bonded with resin, but they are not completely filled with resin, and the continuous spaces run in a mesh pattern, allowing enough rainwater to pass through. Therefore, rainwater flowing from the center of the lawn flows into the gutter through this porous resin layer, but sand is not washed away along with it.

〔Example〕

In a sand-filled artificial turf tennis court where artificial turf is laid on a stable base of asphalt concrete using a known construction method, and then top sand is added into the turf grains, the surrounding area of the court with drainage U-shaped grooves ( Apply photopolymerizable photosensitive resin to approximately 20 cm inside the U-shaped groove.
200g/ ^m2 sprayed. The resin was left to stand naturally for two days to harden the toner sand.

Six months after the construction of the tennis court, in which the surrounding top dressing had been solidified in this way, the situation of outflow of top sand into the U-shaped groove was checked.

As a result, the surrounding sand has solidified sufficiently.
No outflow of top sand into the U-shaped groove was observed at all.

[Effect of idea]

Since the sand at the edges of the sand-preventing artificial turf ground of this invention is hardened with resin, it does not flow into the gutters due to rain, so it does not impede the flow of the gutters and reduces sand loss. do not have.

In addition, since it is only compacted sand, it does not worsen drainage and can be used as a durable artificial turf ground.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the end side of the sand-prevented artificial turf ground of the present invention, and FIG. 2 is a sectional view of the same in the conventional art. 1...Stable base, 2...Artificial grass, 3...Sand, 4
...Gutter, 5...Nylon pile thread, 7...Synthetic resin.

Claims (1)

[Scope of utility model registration request] In a sand-containing artificial turf ground where artificial turf is laid on a stable base with gutters on the edges and sand is sprinkled within the grass grain, the sand on the edge of the artificial turf facing the gutters is solidified with synthetic resin. A sand-proof artificial turf ground.