JP2567953Y2 - Ski runway block structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block structure for a ski runway used for constructing a ski run surface of an artificial ski resort.

[0002]

2. Description of the Related Art In recent years, the ski fever in Japan has been on the rise, and the skiing population has been increasing year by year. However, skiing is restricted both seasonally and regionally, and is recognized as a winter sport in Japan. Have been. However, in response to the diversification of sports and leisure, artificial ski runways have been constructed in various places, and the seasonal and regional restrictions on skiing have been eliminated.

Conventionally, artificial ski runways have been constructed using artificial snow, ice crushing, or various plastic moldings on natural or artificial slopes, but these are still sufficient. It cannot be said. For example, on a runway surface on which artificial grass is laid on an inclined surface and plastic beads are laid on the slope (see Japanese Patent Publication No. 60-9606), when the direction is changed by the edge when skiing, the plastic beads are used. There is a drawback that it moves downward along the inclined surface and accumulates only below. For example, Japanese Patent Publication No. 47-38103, Japanese Utility Model Publication No. 51
A technique of forming a runway surface by combining a plurality of blocks as described in JP-A-51736 and JP-B-58-45755 has been proposed. However, there is a drawback that it slips down because it is installed on an inclined surface, and a method of hooking it with a pile in the space of the block to prevent slipping has been taken, but if you stop with a pile, Not only was it dangerous to catch the ski edge on a stake while skiing, but also the fixing power was insufficient.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a block structure for a ski runway which eliminates the above-mentioned disadvantages of the prior art.

[0005]

SUMMARY OF THE INVENTION The present invention is directed to a block structure for constructing an artificial ski runway by combining a large number of blocks, wherein the block structure 1 has a flat octagonal shape having a space 5 in the center. Are formed by combining four frames 2 with a space 4 in the center, and a large number of small columnar projections 3 are vertically integrated on the surface of the frame 2, and the small columnar projections 3 Is gradually changed so that it becomes the highest at the center of the width of the frame 2 and becomes the minimum at both ends of the width. Further, at least one pair of U-shaped stopper holes 8 are drilled at the adjacent borders of the flat octagonal frame 2. A block structure for a ski runway made of synthetic resin, which is provided.

Hereinafter, the present invention will be described in detail with reference to the drawings, but the present invention is not limited to the following examples unless it exceeds the gist. The drawings show an embodiment of the block structure for a ski runway according to the present invention.
FIG. 1 is a plan view of a block structure for a ski runway according to the present invention, FIG. 2 is a sectional view taken along line AA, and FIG.
FIG.

In the drawings, 1 is a block structure body for a ski runway, 2 is a frame, 3 is a small columnar projection, 4 is a rectangular space, 5 is an octagonal space, and 6 is a male engagement. Portion, 7 is a female engaging portion, 8 is a hole, 9 is a U-shaped stopper (U
-Staples). The block structure 1 according to the present inventor is composed of four octagonal frames 2 having an octagonal space portion 5 in the center portion, adjacent to each side, and provided with a square space portion 4 in the center. Structure. The size of one block structure 1 is not particularly limited, but can be selected in a range of 20 cm to 50 cm on a side.

According to the experience of the present inventors, it has been found that when the shape of the ring formed by the frame 2 is octagonal, the edge effect is more effectively exerted during skiing skiing than when it is square or circular. Was. When the block structure 1 has such a structure in which four frames 2 are combined, there are the following merits. (A) If the unit area of the block structure 1 is too small, the work for constructing the runway surface is complicated, but since it is moderate, it can be efficiently constructed. (B) If the block structure is a plate-shaped molded product having no frame or space, the structure is curved due to molding distortion if the structure is a plate-shaped molded product without frame or space. Easy to do, but frame 2 with space
Can be prevented from being curved. (C) By providing the space portions 4 and 5 in the block structure 1, the weight can be reduced.
Therefore, it is easy to handle and the construction work of the runway surface is also easy.
(D) By providing the space portions 4 and 5 in the block structure 1, the water permeability of the structure can be improved.

On the frame 2, small columnar projections 3 are vertically integrated on the surface. The small columnar projections 3 are arranged at equal intervals over the entire width and the entire length of the frame 2,
It is necessary to gradually change the height so that the height is the highest at the center in the width direction and the height is the minimum at both ends in the width direction. By setting the height of the small columnar projections 3 arranged on the frame 2 to be upward, it is possible to obtain an actual feeling of sliding on snow when skiing. For example, at the time of straight downhill, since there is a height difference between the small columnar projections, the number of the small columnar projections in contact with the back surface of the ski is small, so that the frictional resistance is small and a desired speed can be achieved. On the other hand, in the case of rotating downhill, since there is a difference in elevation between the small columnar projections, the bite of the edge and the switching operation of the edge can be performed. When the ratio of the height of the small columnar projection at the center of the frame 2 to the height of the small columnar projection at the end of the frame 2 is 1, the latter is 3 /
Preferably, it is 4 to 2/3.

The width of the frame 2 can be selected within a range of 2 cm to 5 cm, depending on the size of one block structure. The diameter and height of the small columnar projections 3 arranged on the frame 2 depend on the size of one block structure, but the diameter can be selected from 2 mm to 5 mm and the height can be selected from the range of 10 mm to 35 mm. . The density of the small columnar projections 3 depends on the diameter and height of the small columnar projections 3, but can be selected in the range of 3 to 8 per cm ² .

The block structure 1 according to the present inventor has a structure in which a pair of U-shaped staples (U-staples) insertion holes 8 are formed at adjacent boundaries between the planar octagonal frames 2. . The interval between the pair of holes 8 is the same interval as the length of one side of the space of the planar octagonal frame 2, and
The diameter of the hole 8 can be selected in the range of 3 mm to 8 mm. If the slope on which the ski runway block structure is installed is soil, it can be fixed by inserting a U-shaped stopper into this hole. The material of the U-shaped clasp may be a synthetic resin, a metal, or the like, and among them, a material made of a metal that does not easily rust and has high rigidity is preferable. The length of the U-shaped clasp depends on the hardness of the soil on the inclined surface to be fixed.
You can choose from a range of cm to 25 cm. Further, when the place where the block structure is to be laid is an inclined surface and strong fixation is required, two or more pairs of holes 8 can be formed in the adjacent boundary portion of one frame 2. FIG. 1 shows an example in which two of the four adjacent boundary portions are drilled. If the slope on which the block structure for the ski runway is installed is made of mortar, asphalt or concrete, the length of the U-shaped clasp may be short, and the length of the foot may be within the range of 3 to 10 cm. You can choose.

The block structure according to the present invention is manufactured from a synthetic resin. Synthetic resin, when used as a block structure, exhibits sufficient compressive strength and abrasion strength to withstand continuous use as a ski runway, and ensures that the ski slides smoothly and does not damage the ski. A resin having lubricity and further giving sufficient flexibility and elasticity to the small columnar projections are preferable. Specifically, polyethylene, polypropylene, ethylene-propylene copolymer, olefinic resin such as ethylene-vinyl acetate copolymer, polyvinyl chloride, polyvinylidene chloride,
Thermoplastic synthetic resins such as vinyl chloride resins such as vinyl chloride-vinyl acetate copolymers, polyamides such as nylon 6, nylon 6.6, and nylon 6/10, and polyesters such as polyethylene terephthalate and polybutylene terephthalate. . In addition, various additives such as a plasticizer, a lubricant, a heat stabilizer, an antistatic agent, an ultraviolet absorber, a pigment, and a dye can be added to these synthetic resins as needed.

The block structure according to the present invention is advantageously manufactured by injection molding using the above synthetic resin as a raw material. Further, in the space portions 4 and 5 of the block structure 1 according to the present invention, a cover plate block adapted to the shape of the space portions 4 and 5 made of the same kind of synthetic resin as that used for manufacturing the block structure is provided. be able to. The cover plate block can be selected according to the purpose, such as a flat plate or a structure in which small columnar projections are integrally arranged on the surface.

In order to construct a ski run surface using the block structure according to the present invention, first, when the ground to be installed is soil, the ground is leveled, or when the ground is mortar, asphalt, or concrete, The foundation is constructed with them. After that, one block structure, or one in which the male engaging portion 6 and the female engaging portion 7 of several block structures are engaged as one unit, on a leveled ground,
Alternatively, the male engaging portion 6 and the female engaging portion 7 are laid on a mortar, asphalt or concrete base. During the laying or after the laying is completed, a U-shaped stopper is inserted into the hole 8 and fixed to the base by pressing or forcibly driving. In this case, depending on the hardness of the base,
The length and number of feet of the U-shaped clasp to be used can be selected. The ski run surface thus constructed can be used for skiing as it is, or by snowing artificial snow or spraying crushed ice thereon.

[0015]

[Effect of the Invention] The block structure according to the present invention has the following excellent effects, and its practical utility value is extremely large. (1) Since there is a height difference between the small columnar projections arranged on the frame 2, the number of the small columnar projections that come into contact with the back surface of the ski at the time of straight downhill is small, so that the frictional resistance is small and a desired speed is achieved. On the other hand, in the case of the rotary downhill, the biting of the edge and the switching operation of the edge are easy.

(2) A ski run surface is formed by combining a plurality of block structures according to the present invention. Even if some of the block structures are broken, the block surface can be easily replaced with another block structure. can do. (3) The block structure according to the present invention has a U-shaped clasp insertion hole 8, so that the sloped surface made of soil is a U-shaped clasp with long legs and made of mortar, asphalt or concrete. On the inclined surface, short U
The clasps can be securely fastened to each other, creating a safe and beautiful ski runway.

[Brief description of the drawings]

FIG. 1 is a plan view of a block structure for a ski runway according to the present invention.

FIG. 2 is a sectional view taken along line AA.

FIG. 3 is a sectional view taken along line BB.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Ski runway block structure main body 2 Frame 3 Small columnar projection 4 Square space 5 Octagonal space 6 Male engagement part 7 Female engagement part 8 Hole 9 U-shaped clasp

Claims (1)

(57) [Scope of request for utility model registration] 1. A block structure for constructing an artificial ski runway by combining a large number of blocks, the block structure 1 comprises four flat octagonal frames 2 each having a space 5 in the center. A large number of small columnar projections 3 are vertically integrated on the surface of the frame 2, and the small columnar projections 3 are arranged at the center of the width of the frame 2. It is characterized in that it is gradually changed so that it becomes maximum and becomes minimum at both ends of the width, and furthermore, one or more pairs of U-shaped stopper holes 8 are drilled at the adjacent boundary portions of the planar octagonal frame 2. Do
Ski runway block structure made of synthetic resin.