JPS6343522B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a ski slope in an artificial ski resort.

In recent years, the popularity of skiing in Japan has been remarkable, and the number of skiers is steadily increasing. However, as is well known, skiing is limited to areas with snowfall, and there is also a seasonal restriction that it is only available in winter, which limits the amount of time available to enjoy skiing throughout the year. Many skiers strongly desire facilities that allow them to enjoy skiing throughout the year without being subject to regional or seasonal restrictions.

In order to meet these demands, methods have been put into practical use, such as using a snow machine to spread artificial snow or crushed ice, and using various plastic moldings to form a sliding surface. The latter method is preferable in terms of eliminating such limitations. Examples of materials that can be used to form ski running surfaces using this latter method include brush-like moldings made of polyvinyl chloride, or bondable moldings made of polyethylene made of many upright thin protrusions. The sliding surface formed by the molded product has the advantage that the ski edge can bite into it, it can be turned back, and it can be rotated freely, so it is extremely convenient for alpine skiing, but it is also suitable for use as a run-up track for jumps, etc. It is not suitable for landing surfaces or cross-country ski courses.

On the other hand, a method has been proposed in which a large number of band-shaped sliding elements made of aligned synthetic fiber monofilaments are laid on a slope to form a sliding surface, emphasizing straight-line performance rather than rotational performance. . However, since the above-mentioned sliding elements are fixed on the ground by driving nail-like fixtures into the upper ends of each element, a lot of labor is required to form the sliding surface, and it is extremely difficult to repair parts of the sliding elements. It has the disadvantage of being

The present invention provides a rational and practical structure of a ski slope that has excellent straight-line performance and eliminates the disadvantages in construction of the above-mentioned ski slope, and provides a net-like structure on the slope. A large number of synthetic fiber monofilaments cut into predetermined lengths are arranged flat and fixed at one end, and at least two hooks are fixed at intervals to the fixed part. A large number of sliding elements are placed on the net-like structure, the hooks of each sliding element are engaged with the mesh of the net-like structure, and at least the free end of the upper sliding element is connected to the lower sliding element. A sliding surface is formed by sequentially overlapping the focusing and fixing part of the sliding element.

A more specific explanation will be given below based on the drawings showing embodiments of the present invention. Reference numeral 1 denotes a sliding element, and the sliding element 1 is made of synthetic fibers cut into a predetermined length as shown in FIG. A large number of filaments 2, 2 are arranged flat in the same direction, a band 3 is wrapped around one end of the filaments 2, and the filaments 2, 2 are bundled and fixed with a strong thread or wire 4. Then, several hooks 6, 6 are fixed to the bundle fixing part 5 using, for example, the thread or wire 4, so that they can be hooked onto the net-like structure 7 laid on the slope. It's summery.

As the synthetic fiber monofilament 2 of the above-mentioned sliding element 1, various synthetic resins having good sliding properties and flexibility can be used, but polyvinyl chloride resin is preferable when considering both weather resistance and economical efficiency. In this case, the polyvinyl chloride resin may or may not be plasticized. The diameter of this synthetic fiber monofilament 2 is preferably about 0.5 to 2.0 m/m, and when aligning it, it is possible to simply pull the monofilament of a predetermined length flat and fix it together, but it is also possible to fold it in half into a hairpin shape, Loop part 2' at one end
It is preferable that the free end portion 8 be located on the focusing fixing portion 5 side and the free end portion 8 be in an open state. The synthetic monofilament 2 described above may be linear, but as shown in the figure, using one with a wave-shaped crimp gives it more elasticity when sliding, and also prevents snow from sticking to the slope during snowfall. It's better and more convenient. Furthermore, the means for converging and fixing the large number of synthetic monofilaments 2, 2 in a flat shape is not limited to the means using the band material 3 and the wire 4 as shown in the embodiment, but for example, it is possible to It may be heat-pressed and melt-bonded. The size of the sliding element 1 obtained in this way is 40 to 60 cm in the vertical dimension and 40 to 100 cm in the horizontal dimension from the viewpoint of ease of handling.
A rectangular sheet shape of about 100 ml is preferable.

The ski slope according to the present invention is constructed as follows. First, the net-like structure 7 is laid on a slope having an appropriate slope. As this net-like structure, a wire mesh with regular mesh and excellent tensile strength is commonly used, and the mesh size is 3 cm.
A concrete reinforcing net of approximately 3 cm x 10 cm x 10 cm is most suitable, and the net-like structure 7 laid on the slope is firmly fixed to the slope by means such as driving holes. Next, as schematically shown in FIG. 2, a large number of the sliding elements 1, 1 described above are placed on the net-like structure 7, and the hooks 6, 6 of each sliding element 1, 1 are attached to the net-like structure 7. While engaging the mesh of The side surfaces of the sliding elements 1, 1 are partially overlapped to cover the net-like structure 7 in the manner of single roofing, concealing the focusing and fixing part 5 of each sliding element 1 and covering the surface layer of the slope as shown in FIG. As shown in Figure 2, a large number of synthetic resin monofilaments 2, 2 are oriented in the sliding direction.
This is a slope for skiing.

Furthermore, when the above-described structure of the ski running surface according to the present invention is applied to a place where elasticity similar to the feeling of a large amount of snow is required, such as the run-up path and landing surface of a jump board, or a country ski course, As shown schematically in FIG. 4 using a jump platform as an example, in the run-up path 10, a ground wood pulp layer 11 is formed on the ground surface, the surface is covered with a plastic sheet 12, and then a net-like structure 7 is laid. Furthermore, on the landing surface 13, a crushed wood pulp layer 11 is formed on the ground surface, and a foamed plastic layer 14 is formed on the upper surface thereof, and then covered with a plastic sheet 12 to form a buffer layer 15, and then a net-like structure 7 is laid. As described above, the net-like structure 7
It is preferable to attach the sliding element 1 to the surface of. As mentioned above, the material of the buffer layer 15 interposed between the net-like structure 7 and the ground surface is not particularly limited, and in addition to the above-mentioned ground wood pulp and foamed plastic, rock wool and various bulky non-woven mats can be used. are also suitable materials.

As described in detail above, the ski slope according to the present invention has a net-like structure 7 laid on the slope, and a large number of synthetic fiber monofilaments 2 cut to a predetermined length are flattened and arranged at one end. A large number of sliding elements 1, each of which is fixed in a bundle and has at least two hooks 6 fixed at intervals to the bundled fixing part 5, are placed on the net-like structure 7, and each sliding element 1 is assembled. At least the upper sliding element 1-1 is engaged with the hook 6 of the net-like structure 7.
Since the sliding surface is formed by sequentially overlapping the free end portion 8 of the lower sliding element 1-2 on the convergence fixing portion 5 of the lower sliding element 1-2, after the net-like structure is laid and fixed on the slope. , an extremely simple operation in which the hooks 6 of the sliding elements 1 are engaged with the mesh of the net-like structure 7, and the surface of the net-like structure 7 is covered with a large number of sliding elements 1 in the same way as shingle roofing. As a result, each of the sliding elements 1 can be fixed in an orderly manner, resulting in a sliding surface with excellent straight-line sliding properties whose entire surface is made of synthetic fiber monofilament 2 extending in the sliding direction. Therefore, a vast sliding surface can be easily obtained, and even if a portion is worn out due to use, only the worn portion can be easily replaced. It is relatively easy to construct a buffer layer, and it is possible to obtain a sliding surface with a feeling similar to that of snow without being restricted by region or season, and is especially useful for jumping boards where you can enjoy straight running, and for cross-country skiing. This provides a sliding surface structure that is extremely convenient for ski courses or sledding.

[Brief explanation of the drawing]

The drawings show embodiments of the invention,
Figure 1 is a perspective view of the sliding element, Figure 2 is a simplified side view showing how to form the sliding surface, Figure 3 is a partial perspective view of the sliding surface, and Figure 4 is how the buffer layer of the slope is formed. FIG. DESCRIPTION OF SYMBOLS 1...Sliding element, 2...Synthetic fiber monofilament, 5...Focusing fixing part, 6...Hook tool, 7
... Net-like structure, 8 ... Free end of sliding element, 15 ... Buffer layer.

Claims (1)

[Claims] 1. A net-like structure is laid on a slope, and a large number of synthetic fiber monofilaments cut into predetermined lengths are arranged flat and fixed at one end thereof, and the fixed structure is fixed at one end of the net-like structure. A large number of sliding elements each having at least two hooks fixed at intervals are placed on the net-like structure, and the hooks of each sliding element are engaged with the mesh of the net-like structure. A structure of a slope for skiing, characterized in that a free end portion of at least an upper sliding element is sequentially overlapped with a converging fixed part of a lower sliding element to form a sliding surface. 2. A buffer layer is provided on the slope, a net-like structure is laid on top of the buffer layer, and a large number of synthetic fiber monofilaments cut into predetermined lengths are aligned flatly and fixed at one end to form a bundle and fixing part. A large number of sliding elements each having at least two hooks fixed at intervals are placed on the net-like structure, and the hooks of each sliding element are engaged with the mesh of the net-like structure. A structure of a slope for skiing, characterized in that a free end portion of at least an upper sliding element is sequentially overlapped with a converging fixed part of a lower sliding element to form a sliding surface. 3. The structure of a ski slope according to claims 1 and 2, wherein the synthetic fiber monofilament has wavy crimps along its length. 4. The structure of a ski slope according to claim 2, wherein the buffer layer is constructed of ground wood pulp and/or foamed plastic covered with a plastic film.