JP2885623B2 - Artificial turf having antistatic properties and method for fastening conductive fiber to artificial turf - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial turf having an antistatic property and a method for fixing conductive fibers to the artificial turf.

[0002]

2. Description of the Related Art It is generally known to form an artificial turf with a thermoplastic resin such as polyethylene, polypropylene or EVA. This artificial lawn is composed of a base and a large number of leaf-like portions planted on the surface of the base,
After integrally molding the base and the leaf-shaped part, the leaf-shaped part is curled to give the appearance of a natural lawn.

[0003] In order to discharge static electricity charged on the human body, specifically, the sole of a shoe through such artificial grass, it has been proposed to dispose conductive fibers on the surface of the base of the artificial grass (for example, See Japanese Utility Model Publication No. Sho 55-36561).

[0004]

However, the artificial turf having antistatic properties described above has a problem that the antistatic effect does not last for a long time because only conductive fibers are laid on the surface of the base. Was. That is, when the conductive fiber floats above the leaf-shaped portion due to use, the toe is caught and cut off, or is easily lost by wind and rain, and there is a problem that the antistatic effect is not maintained for a long time.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an artificial turf having an antistatic property capable of maintaining an antistatic effect for a long period of time.

Another object of the present invention is to provide a method for fixing conductive fibers to artificial grass, which can easily and inexpensively attach conductive fibers to artificial grass.

[0007]

SUMMARY OF THE INVENTION An artificial turf having antistatic properties according to the present invention is an artificial turf comprising a substrate and a plurality of leaves planted on the surface of the substrate. The conductive fibers are laid along the surface of the base, and at least two portions of the conductive fibers are embedded in the base.

[0008] Further, the method of fixing conductive fibers to artificial grass according to the present invention is characterized in that at least two conductive fibers are laid along the surface of the base through the space between the leaves, and then disposed at intervals. The heater is lowered so as to hold down the conductive fibers to partially melt the base, and the conductive fibers are embedded in the melted base.

[0009]

In the artificial grass having antistatic properties, the static electricity charged on the sole of the shoe is discharged to the conductive fibers laid on the artificial grass. At this time, the conductive fiber passes between the leaf-like portions,
Since the conductive fibers are laid along the surface of the base and at least two places are buried in the base, the conductive fibers are not exposed to the surface of the artificial turf because of the leaf-like portions, and the appearance and walking feeling of the artificial turf are reduced. In addition to the above, the conductive fibers are reliably prevented from dropping or floating due to walking, wind and rain, and the like, and the antistatic effect of static electricity can be maintained for a long period of time.

In the method of fastening conductive fibers to artificial grass, conductive fibers are laid along the surface of the base, passing between the leaves of the artificial grass, and then at least two fibers are attached.
The heater can be lowered to hold down the conductive fibers to partially melt the base, and the conductive fibers can be buried in the melted base. Can be fixed.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an artificial turf 1. The artificial turf 1 is composed of a base 2 and a plurality of leaf-like portions 3 planted on the surface of the base 2, and is made of polyethylene or polypropylene. It is formed of a thermoplastic resin such as EVA or EVA. A conductive fiber, for example, a carbon fiber 4 is laid along the surface of the base 2 through the space between the leaf-shaped portions 3, and at least two of the conductive fibers are buried in the base 2 at intervals. Wearing f.

More specifically, in a state in which the leaf 3 of the artificial grass 1 is upright, the carbon fiber 4 is placed on the leaf 3, 3.
After laying along the surface of the base 2 through the space, the two heaters H arranged at a distance are lowered so as to press the carbon fiber 4 (see FIG. 2A), and the base 2 is lowered. The carbon fibers 4 are partially melted and embedded in the melted resin. In this case, it is preferable that the heater temperature is set in a temperature range where the viscosity exceeds the melting point of the material of the base 2 and the viscosity becomes low. Thereafter, when the heater H is raised, the resin is cooled, and the carbon fibers 4 are embedded and fixed in the base 2 at two places with an interval (see FIG. 2B). Next, the artificial turf 1 is manufactured by thermally deforming and curling the upright leaf-like portion 3.

In the embodiment described above, the base 2
Although the case where the carbon fibers 4 laid on the surface of the base 2 are embedded and fixed on the surface of the base 2 is exemplified, both ends may be fixed on the side surface or the back surface of the base 2.

As a result, the static electricity charged on the sole of the shoe is discharged to the carbon fibers 4 laid on the artificial turf 1, so that the static electricity is not accumulated more than a certain amount on the pedestrian. Since the carbon fibers 4 are firmly fixed to the base 2 and do not rise due to walking, wind and rain, etc., the antistatic effect of static electricity can be maintained for a long time. Further, since the base 2 is partially melted by the heater H to fix the conductive fibers 4, there is an advantage that the operation can be performed using simple equipment.

In this embodiment, the conductive fibers 4
Although carbon fiber having heat resistance is used as the material, metal fiber can also be used.

When the conductive fibers 4 are fixed to the base 2, as shown in FIG. 3, a plurality of paddings are formed on the base 2 at intervals so as to define both sides on which the conductive fibers 4 are laid. If the portion 21 is formed in advance and the built-up portion 21 is melted by the heater H, the conductive fiber 4 can be reliably embedded in the base 2.

Further, in this embodiment, the case where the conductive fibers 4 are fixed to the short unit type artificial grass 1 by the injection molding method has been described, but the conductive fiber 4 is fixed to the continuously formed long artificial grass. The conductive fiber can also be fixed.

[0019]

As described above, according to the artificial turf having an antistatic property of the present invention, the conductive fibers are laid along the surface of the base, passing between the leaves of the artificial turf, and at least the conductive fibers are laid. The two locations are buried in the base, so that the appearance and walking feeling of the artificial grass are not impaired, and the conductive fibers are reliably prevented from falling or floating due to walking or wind and rain, and static electricity is charged for a long time. The prevention effect can be maintained.

Further, according to the method for fixing conductive fibers to artificial grass according to the present invention, the method passes between the leaves of the artificial grass,
Laying conductive fibers along the surface of the substrate, and then lowering at least two heaters to hold down the conductive fibers to partially melt the substrate and bury the conductive fibers in the molten substrate. Thus, the conductive fiber can be easily and inexpensively fixed to the artificial grass.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an artificial lawn of the present invention with a part thereof omitted.

FIG. 2 is a cross-sectional view illustrating a step of fixing conductive fibers to artificial grass.

FIG. 3 is a cross-sectional view illustrating another process of fixing conductive fibers to artificial grass.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Artificial grass 2 Substrate 3 Leaf part 4 Conductive fiber (carbon fiber)

Claims (2)

(57) [Claims] 1. An artificial turf comprising a base and a plurality of leaves planted on the surface of the base, wherein the artificial grass has a space between the leaves.
Conductive fiber is laid along the surface of the substrate,
Characterized in that at least two places of fibers are embedded in the base
Artificial grass with antistatic properties . 2. Conducting between the leaves and along the surface of the substrate
After laying the conductive fibers, at least
Also lower the two heaters to hold down the conductive fibers.
The substrate was partially melted and the conductive fibers were melted.
Guide for artificial grass characterized by being embedded in a substrate
A method for fixing the conductive fiber.