JPS6131045Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water-permeable artificial lawn, and more particularly to a water-permeable artificial lawn characterized by a net-like body attached to the side opposite to the pile planting side of the artificial lawn.

Conventionally, although artificial lawns are mostly used outdoors, they have insufficient water permeability and tend to collect water after rainy weather, making it difficult to use them immediately. In addition, in recent years, artificial lawns have been proposed that have a structure that promotes water permeation from the pile planting surface through the base fabric and downward from the base fabric. The water was not flowing away from below and had accumulated under the artificial lawn. As such conventional artificial lawns, for example, those shown in FIGS. 4 to 6 are known. FIG. 4 is a longitudinal cross-sectional view of such an artificial lawn, in which piles 2 are planted on a base fabric 1 having water-permeable voids, and a net-like body 3 is attached to the back surface of the base fabric 1 by adhesive or the like. There is. As shown in FIG. 5, this net-like body 3 is formed by molding a synthetic resin, and has strands 4 that intersect vertically and horizontally on the same plane. In addition, FIG. 6 shows the strands 4 of the net-like body 3.
FIG. In this way, in the case of conventional artificial lawns, even when laid on an inclined surface, the strands that make up the net-like body 3 are on the same plane. It remained in the lattice-like part of the screen and could not be washed away. The present invention is intended to eliminate such conventional drawbacks, and its purpose is to provide a water-permeable artificial lawn that has good drainage when laid on an inclined laying surface. That is, the present invention provides an artificial lawn in which a mesh body is attached to the back side of an artificial lawn body in which piles are formed on a base fabric having water-permeable voids, and the synthetic resin strands form an angle of 5° to 85° with the edge direction. A net-like body formed by joining strands arranged in the same direction and strands arranged in the same direction and each strand arranged in a direction that intersects them on non-coplanar surfaces is attached to the back side of the base fabric. The gist of this paper is a water-permeable artificial lawn that is characterized by:

Hereinafter, the present invention will be explained in detail based on illustrated examples.

FIG. 1 is a vertical cross-sectional view showing an example of an artificial lawn of the present invention, in which strips of a film-like material made of synthetic resin are attached to a water-permeable base fabric 1 made of woven or knitted fabric.
A pile 2 of flat yarn, monofilament, multifilament, etc. is planted to form the artificial lawn body, and a net-like body 3, which will be described in detail below, is attached to the back side of the base fabric 1 by adhesion or fusion. It is worn. FIG. 2 is a plan view of the net-like body 3 seen from the back side. This net-like body 3 has a plurality of strands 4a made of synthetic resin arranged in parallel to each other on the same plane, and strands 4b that intersect with these strands 4b arranged in parallel to each other in a plane different from the strands 4a. It is formed by joining both strands 4a and 4b by fusion or adhesion at the intersection of the strands 4b. Each strand 4a, 4b is arranged at an angle α of 5° to 85° with respect to the longitudinal or lateral direction of the net-like body 3, that is, the edge direction A of the net-like body 3. The net-like body 3 is attached with the strands 4a facing the base fabric 1. Moreover, the net-like body 3 is attached in alignment with the edge direction of the base fabric 1. As mentioned above, the net 3 is the strand 4
Since a and the strand 4b do not exist on the same plane, a groove is formed along these strands between the adjacent strands 4a and 4a or between the strands 4b and 4b. Moreover, since the strands 4a and 4b form an angle of 5° to 85° with respect to the edge direction A, when such an artificial lawn is laid vertically or horizontally on a sloped laying surface, the slope direction of the laying surface and the artificial lawn The edge direction A of the lawn coincides with the lawn, and a groove extending diagonally downward at an angle of 5° to 85° with respect to the slope direction is formed between the lawn and the laying surface. Therefore, water such as rainwater is pile 2,
The strands 4 pass through the base fabric 1 and reach the net-like body 3.
It will be washed away along the groove between the strands a and 4a or between the strands 4b and 4b.

In the present invention, the angle α between the strands constituting the net-like body and the edge direction of the net-like body must be between 5° and 85°, and must be less than 5° or 85°.
If the angle exceeds 90°, the angle of the strands will approach 90° either vertically or horizontally, and water will not be able to flow away sufficiently.

In the present invention, when forming the net-like body, the mutually crossing strands may be joined by fusion or adhesion. In addition, in order to improve the flow of permeated water, as shown in FIG.
It is sufficient that the mesh is meandered up and down, and such a net-like structure is preferably formed by fusion bonding. With such a structure, it is possible to provide the artificial lawn with better cushioning properties, and it is also less prone to creep even after being repeatedly compressed. Further, in the example shown in FIG. 2, the strands 4a or 4b are arranged in parallel, but the strands 4a or 4b are arranged in parallel.
B do not necessarily have to be parallel as long as they do not intersect.

In addition, to attach the net-like body to the base fabric on which the piles are planted, that is, the main body of the artificial lawn, either adhesive or fusion may be used, but when using adhesive, it is necessary to attach the net-like body to the base fabric, such as woven or knitted fabric, so as not to lose the water-permeable voids. Preferably, the adhesive is sprayed on the back side of the fabric or applied in such a way that it does not form a film on the mesh.

Furthermore, the artificial lawn main body may be one in which piles are planted on the base fabric by tufting, electrodeposition, etc., or one in which the base fabric and piles are integrated, such as a woven fabric or knitted fabric that has piles. Further, it is also possible to use one in which the base fabric made of synthetic resin and the pile are integrally formed.

The artificial lawn of the present invention can exhibit its characteristics significantly for general household use such as outdoor balconies, rooftops, gardens, etc., or for sports use such as poolsides, baseball fields, tennis courts, etc.

In the present invention, since the strands arranged in the same direction and the strands arranged in the direction crossing the same direction do not exist on the same plane as described above, a groove along the strands is formed by these strands. In addition, each strand makes an angle of 5° to 85° with respect to the edge of the mesh, making it suitable for artificial lawns. Whether used vertically or horizontally, water can be easily flowed away on an inclined surface, resulting in good drainage.

In addition, since the artificial lawn of the present invention has long grooves formed on the back side, even if it is laid on a flat surface, a large amount of water evaporates and it dries easily.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view showing an example of the artificial lawn of the present invention, Fig. 2 is a plan view of the net-like body attached to the back side of the artificial grass shown in Fig. 1, viewed from the back, and Fig. 3 is a plan view of the net-like body attached to the back side of the artificial grass of the present invention. A side view of another example, FIG. 4 is a vertical cross-sectional view of a conventional artificial lawn, FIG. 5 is a plan view of the net-like body attached to the back side of the artificial lawn in FIG. 4, and FIG. 6 is a side view of the artificial lawn in FIG. It is a diagram. In the figure, 1 is the base fabric, 2 is the pile, 3 is the mesh, and 4
a and 4b indicate strands.

Claims (1)

[Scope of utility model registration request] In an artificial lawn in which a net-like body is attached to the back side of an artificial lawn body in which piles are formed on a base fabric having water-permeable voids, the synthetic resin strands
A net-like body formed by joining strands arranged at an angle of 85° to 85° and in the same direction and strands arranged in a direction that intersects these strands by intersecting them on non-coplanar planes. A water-permeable artificial lawn characterized by having the following attached to the back side of the base fabric.