JPH09683A - Structure for downhill sports using artificial lawn - Google Patents

Abstract

PURPOSE: To suppress tear up of the lawn due to a downhill action by forming a vacant portion made of a plate-like body alone without having pseudo-lawn leaves on a lower end of a joint of artificial lawn pieces and bonding an upper end of the artificial lawn onto the vacant portion with an adhesive. CONSTITUTION: Artificial lawn is made of a thermoplastic resin such as polyethylene both in a plate-like body 13 and pseudo leaves 11. Vacant portions consisted of only the plate-like body 13 having no roots 12 of the pseudo lawn leaves 11 are formed, so that an end 15 of an artificial lawn piece 1 on the upper side is superposed over an end 16 of an artificial lawn piece 2 on the lower side. Then, the end 15 of the artificial lawn piece 1 on the upper side is superposed over the vacant portion in the end 16 of the artificial lawn piece on the lower side, and a thin metallic belt-like body 17 is laid between the end 15 and the end 16. The upper surface and the lower surface of the belt-like body 17 are bonded by an adhesive to the end 15 and the end 16, respectively. Thus, the artificial lawn piece 2 on the lower side and the artificial lawn piece 1 on the upper side are joined firmly via the thin belt-like body 17, thereby not easily causing exfoliation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for downhill sports, in which artificial grass, particularly artificial grass made of a thermoplastic resin, is connected to a slope and laid to form a downhill surface.

[0002]

2. Description of the Related Art Skis, sledges, snowboards, and other sports that slide down on a snow surface are snowy areas and are only available during the snowy season. Without being bound by such restrictions,
In order to carry out such sports everywhere, an artificial lawn as a downhill surface, for example, a large number of artificial turf leaves made of thermoplastic resin, is laid on the surface of a plate-like body to form a slope. Things are known. The artificial grass used in this case can be manufactured to have a considerably long length in the longitudinal direction, but if it is excessively long, there is a problem in handling.
The width is preferably about 20 m, and the width is, for example, about 1 m. And since the length of the slope has a considerable distance, it becomes as shown in Fig. 2 when laying an artificial lawn.

FIG. 2 is an explanatory view showing a plan view of a downhill surface on which an artificial lawn is laid. In the figure, 1 is an upper artificial grass that is laid on a slope, and 2 is a lower artificial grass. Reference numeral 3 is a connecting portion of the artificial grass on each of the upper side and the lower side.
As shown in the drawing, the connecting portion 3 is preferably displaced from the connecting portion position in the adjacent row of artificial grass in the vertical direction. An example of an embodiment constituting a structure for downhill sports is basically an underpad (plastic foam, for example, polyethylene foam, etc.) on the finished surface of a concrete gold trowel by an entire bonding method. Consists of
The thickness is 20 to 50 mm for skis and 5 to 20 for sleds.
It is about mm. This is to prevent injuries such as when a downhill person falls. ) Is laid, and the artificial grass is laid on it by the entire surface bonding method in the same manner as the under pad.

If necessary, a layer of nylon non-woven fabric, vinyl chloride resin sheet, polypropylene cloth or the like may be provided between the artificial lawn and the underpad for reinforcement, and if necessary, two or more layers may be combined. You may laminate together. The artificial grass is arranged as shown in FIG. 2, and the vicinity of the connecting portion 3 between the artificial grass 1 on the upper side and the artificial grass 2 on the lower side and the lower layer of the artificial grass (the under pad layer or the nylon nonwoven fabric is reinforced). The joint tape (mesh) is sandwiched between the artificial grass and the connection part 3 of the artificial lawn by the adhesive.

[0005]

As described above, the connecting portions of the artificial lawn are connected in a butting state. However, when sliding down on such a glide surface, the edge of the connecting portion of the lower artificial grass slides down. Due to the strong force caused by the, turning up occurs, it takes time to repair it, and users complain. Therefore, the present invention is a structure for downhill sports constructed by laying an artificial lawn made of a thermoplastic resin, in which the lower side of the connecting portion between the upper side and the lower side artificial turf laid on the slope is connected. It is an object of the present invention to provide a structure in which turning up of an edge of a part caused by sliding down is suppressed.

[0006]

The present invention achieves the above objects, and the gist thereof is to provide a plate-shaped body and a large number of pseudo-turf leaves standing on the plate-shaped body with a thermoplastic resin. A structure for downhill sports in which the artificial grass is connected to the slope and laid to form a downhill surface, and the artificial grass on the upper side and the lower side of the artificial grass connected and laid on the above slope are In the connection with the artificial grass, (a) at the edge of the connection of the artificial grass on the lower side, a vacant part that is only a plate-like body and has no pseudo-turf is formed, and (b) this lower side. Of the artificial grass on the upper side at a position where the edge of the connecting portion of the artificial grass on the upper side overlaps, and through a thin strip made of a metal coated with an adhesive, on the void portion of the edge of The structure for downhill sports is characterized in that the edge and the edge of the artificial grass on the lower side are bonded with an adhesive. That.

Hereinafter, the present invention will be described in detail. The structure of the present invention has an artificial lawn laid on a slope as shown in FIG. 2 and has a peculiar structure at the connecting portion between the artificial lawn on the upper side and the artificial lawn on the lower side. Part of the layer below the lawn layer, i.e. the underpad layer,
Alternatively, the reinforcing layer and the basic concrete layer, which are appropriately laminated as necessary, may have any conventionally used or known structure.

The artificial lawn has a form in which a large number of pseudo-turf leaves (that is, a shape resembling a lawn leaf) are erected on a plate, and both the plate and the pseudo-turf are heated. A material made of a plastic resin is used. The thermoplastic resin of the material, polyethylene, polypropylene, ethylene-propylene copolymer, olefin resin such as ethylene-vinyl acetate copolymer, polyvinyl chloride, polyvinylidene chloride,
Vinyl chloride resins such as vinyl chloride-vinyl acetate copolymers, polyamides such as nylon 6, nylon 6.6, nylon 6 and 10, polyesters such as polyethylene terephthalate and polybutylene terephthalate Among them, olefin resins such as polyethylene are preferable.

FIG. 3 shows an example of an artificial lawn used in the present invention. This artificial lawn is a molded product manufactured by the method described in Japanese Examined Patent Publication No. 52-1569, and FIG. 3 is a schematic perspective view of the molded product. In the figure, 11 is a pseudo-turf leaf, 12
Is a pseudo-turf leaf strain composed of several pseudo-turf leaves (for example, 5 to 15), and these strains 12 are regularly arranged on the plate-like body 13 and the pseudo-turf leaf 11 is upward. Holds upright. The number of pseudo-turf leaves 12 is, for example, about 8,000 to 12,000 per 1 m ^{2 of} artificial lawn.
A height of 5 to 40 mm, preferably 15 to 25 mm is used.

FIG. 1 is a schematic vertical vertical cross-sectional view of an example of a main portion of a structure of the present invention, that is, an example of a connecting portion between an upper side and a lower side of an artificial lawn which constitutes a glide surface. The parts indicated by 1, 2, 11, 12, and 13 in the figure are the same as those described above. Reference numeral 14 is an underpad layer below the artificial grass layer on the glide surface, and 18 is a sloping ground below the underpad layer 14. Reference numeral 15 is an edge of the artificial grass 1 on the upper side, and 16 is an edge of the artificial grass 2 on the lower side. And, as shown in the drawing, the edge 15 of the artificial grass 1 on the upper side is overlapped with the edge 16 on the lower side,
A vacant part is formed which is composed of only the plate-like bodies 13 constituting the artificial lawn and is free of the pseudo-turf leaf stock 12. The width of this void is usually 2-3 cm, and may be larger if necessary.

Reference numeral 17 is a metal strip, and as described above, the end edge 15 of the upper artificial grass 1 is overlapped with the void portion of the end edge 16 of the lower artificial grass 2, and this overlapping is carried out. It is installed so as to be interposed between the edge 15 and the edge 16 at a location. Then, the upper surface and the lower surface of the strip 17 are bonded to the end edge 15 and the end edge 16 via an adhesive agent, respectively. As a result, the artificial grass 2 on the lower side and the artificial grass 1 on the upper side are firmly joined to each other through the thin strip 17. It is also preferable to apply an adhesive to the portion of the lower surface of the strip 17 that contacts the base layer 14 for adhesion.

In order to perform the lap-bonding of the edge 15 of the artificial grass on the upper side and the edge 16 of the artificial grass on the lower side via the thin strip 17, other than the embodiment shown in FIG. You may do like this. The edge 15 of the artificial grass on the upper side is overlaid directly on the void portion of the edge 16 of the artificial grass on the lower side (that is, without intervening strips), and the upper portion including the portion thus overlapped Exposed lower surface of edge 15 of artificial grass on the side and edge 16 of artificial grass on the lower side following this
Adhesive bonding is performed by applying a strip-shaped object having a shape in contact with the lower surface of. The length of the metal strip 17 is set to be equal to or less than the width of the artificial lawn so that it does not protrude outside. The width of the strip is about 5 cm, including the step. Examples of the metal forming the strip 17 include iron, stainless steel, aluminum, aluminum alloy and the like. As the adhesive used for the above joining, an epoxy resin adhesive, a rubber adhesive or a urethane adhesive is preferable.

[0013]

[Function] In the conventional connection and laying of artificial grass, the connection part between the upper artificial grass and the lower artificial grass is abutted, and is bonded with a layer below the artificial grass layer with an adhesive, Adhesion of thermoplastic resins, especially olefinic resins, was not able to withstand the strong adhesive force, that is, the peel resistance, against the strong force received during skiing such as skiing, and the edge of the lower artificial grass was easily peeled off. In the present invention, the edge of the upper artificial grass covers and protects the edge of the lower artificial grass, and the edge of the upper artificial grass and the edge of the lower artificial grass are strips made of metal. It was bonded with an adhesive via the adhesive, and the peeling of the edge of the lower artificial grass was suppressed in combination with the stronger adhesive force between the thermoplastic resin and the metal.

[0014]

According to the structure for downhill sports of the present invention, even if the edge of the laid lower artificial grass is subjected to a strong force at the time of downhill, peeling does not occur easily.

[Brief description of drawings]

FIG. 1 is a schematic vertical vertical cross-sectional view of an example of a connecting portion on an upper side and a lower side of an artificial lawn that constitutes a downhill surface in a structure of the present invention.

FIG. 2 is an explanatory view showing a plan view of a downhill surface on which artificial grass is laid.

FIG. 3 is a schematic perspective view of an example of artificial grass used in the structure of the present invention.

[Explanation of symbols]

1 Artificial grass on the upper side laid on the slope 2 Artificial grass on the lower side laid on the slope 11 Pseudo-turf leaves that make up the artificial grass 12 Strains made up of several pseudo-turf leaves 13 Stand up pseudo-turf leaves Plate-like body 15 Edge of artificial grass on the upper side 16 Edge of artificial grass on the lower side 17 Metal strip that joins artificial grass on the upper side and artificial grass on the lower side

Claims (3)

[Claims] 1. A plate-like body and a large number of pseudo-turf leaves standing on the plate-like body are connected to an inclined surface of an artificial lawn made of a thermoplastic resin,
A structure for downhill sports that has been laid to form a downhill surface, connected to the above slope, in the connection portion between the artificial grass on the upper side and the artificial grass on the lower side of the laid artificial grass,
(B) At the edge of the connection part of the artificial grass on the lower side, a vacant part that is only a plate-like material and has no pseudo-turf leaves is formed, and (b) of the empty part of the edge on the lower side. At the position where the edges of the connecting portion of the artificial grass on the upper side overlap, and through a strip of metal coated with an adhesive, the edge of the artificial grass on the upper side and the artificial grass on the lower side A structure for downhill sports characterized in that it is bonded to the edge of the adhesive with an adhesive. 2. The structure for downhill sports according to claim 1, wherein the metal constituting the strip is made of iron, stainless steel, aluminum or an aluminum alloy. 3. The structure for downhill sports according to claim 1, wherein the adhesive used for adhesive bonding is an epoxy resin adhesive, a rubber adhesive or a urethane adhesive.