JP2000061025A - Fixing structure of net member for fence of ski slope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing structure of a net member for a fence of a ski slope which can accurately prevent the sagging of a net member composing a fence as caused by the weight of snow by enabling simple adjusting of the spreading position of the net member composing the fence according to the amount of snow. SOLUTION: A support 2 is disposed so as to stitch the mesh of a net member 1 made of a synthetic resin and a tension belt 5 with one end thereof connected to the upper end of the net member 1 is fixed along the support 2 through a guide roller 41 disposed at the upper end of the support 2 thereby suspending the net member 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for fixing a net member for a fence in a ski resort, and in particular, for surrounding a ski resort to display a downhill course and prevent a skier from falling. The present invention relates to a structure for fixing a net member for a fence used in a ski resort.

[0002]

2. Description of the Related Art In ski areas, ropes and fences made of synthetic resin are used to enclose the area around ski areas so that skiers can enjoy skiing safely. We are trying to prevent people from falling.

[0003]

By the way, many ropes and fences made of synthetic resin, which are conventionally used to surround the periphery of a ski resort, have low strength and rigidity, or conversely are too high. In a low temperature environment called a ski resort,
None exhibited moderate strength and rigidity. For this reason, if the strength and rigidity are low, the rope or fence hangs down due to the weight of snow, making it impossible to display the downhill course or supporting the runner when the runner collides. Therefore, there is a problem in that it is impossible to reliably prevent the skier from falling. on the other hand,
On the other hand, if the strength and rigidity are too high, there is a problem in that when the skier collides, a great impact is applied to the skier and the skier may be injured.

For ropes and fences, the tension position of the ropes and fences is frequently adjusted according to the amount of snow in order to display the downhill course and achieve the intended purpose of preventing the skiers from falling. However, in the case of conventional ropes and fences, there are problems in that this adjustment takes time and the weight of snow causes the ropes and fences to slide down.

In view of the problems of ropes and fences made of synthetic resin or the like used to surround the surroundings of the above-mentioned conventional ski resort, the applicant of the present invention, in the low temperature environment of ski resort, It has moderate strength, rigidity, and cushioning properties, can withstand the weight of snow, and can reliably support the skier without a big impact on the skier in the event of a collision, and depending on the amount of snow accumulated. Proposal of a fence net member for ski resorts and its fixing structure that allows the tension position of the net member that constitutes the fence to be easily adjusted, and prevents the net member that constitutes the fence from slipping off due to the weight of snow. Yes (Japanese Patent Application No. 10-14
2816).

According to the present invention, the tension position of the net member constituting the fence can be adjusted more easily according to the amount of snow, and the weight of the snow allows
An object of the present invention is to provide a structure for fixing a net member for a fence in a ski resort, which can surely prevent the net member constituting the fence from slipping down.

[0007]

In order to achieve the above object, in the structure for fixing a net member for a fence of a ski resort of the present invention, a strut is arranged so as to sew the eyes of a synthetic resin net member. In the structure for fixing the net member for the fence of the ski resort, the tension belt having one end connected to the upper end of the net member is fixed along the support pillar via the guide roller arranged at the upper end of the support pillar,
It is characterized in that the net member is held so as to be suspended.

This structure for fixing a net member for a fence at a ski resort is such that a tension belt having one end connected to the upper end of the net member is fixed along the support pillar via a guide roller arranged at the upper end of the support pillar. Since the members are held so as to be suspended, by pulling the tension belt connected to the net member that constitutes the fence, it is possible to move the net member upward while preventing the pillars from being lifted. It is possible to easily adjust the stretched position of the net member that constitutes the fence according to the amount, and it is possible to reliably prevent the net member from naturally sliding down due to the weight of snow.

In this case, the tension belt is
The other end can be connected to the lower end of the net member via a guide roller arranged at the lower part of the column.

Thus, by pulling the tension belt connected to the net member constituting the fence via the guide roller arranged at the lower part of the support, the net member can be moved downward, and the snow accumulation amount can be reduced. Accordingly, the tension position of the net member that constitutes the fence can be easily adjusted, and the treatment on the other end side of the tension belt can be simplified.

Further, the tension belt is connected to the net member through an annular guide member which is provided with a hook for locking the net member and a stopper for fixing the tension belt, and which is slidably arranged along the column. You can

As a result, the net member forming the fence and the tension belt can be easily connected, the net member can be smoothly moved along the support column, and the tension belt can be easily installed along the support column. Can be fixed to.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a structure for fixing a net member for a fence in a ski resort according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment of a structure for fixing a net member for a fence in a ski resort according to the present invention. The structure for fixing the net member for a fence in this ski resort is a tape-shaped body in which the surface of a core tape is covered with a synthetic resin as warp yarns 11 and weft yarns 12, and these warp yarns 11 and weft yarns 12 are crossed with each other at a predetermined interval Using the net member 1 formed by fixing the respective intersections, the eyes of the net member 1 are sewn along the warp threads 11 of the net member 1, and the fiber reinforced plastic pipe, synthetic resin coating, plating, etc. The tension belt 5 having one end connected to the upper end of the net member 1 and the guide roller 41 arranged at the upper end of the support rod 2 are provided by disposing the support rod 2 made of a metal pipe, an aluminum pipe, or the like, which has been subjected to appropriate anticorrosion treatment. The net member 1 is held so as to be suspended by fixing the net member 1 along the column 2.

In this case, the connection between the net member 1 and the tension belt 5 is provided with a hook 61 for locking the weft thread 12 of the net member 1 and a stopper 62 for fixing the tension belt 5 by sandwiching it, and along the prop 2 Can be carried out via the annular guide member 6 slidably arranged, whereby the net member 1 and the tension belt 5 can be easily connected, and the net member 1 can be arranged along the column 2. Therefore, the tension belt 5 can be smoothly moved, and the tension belt 5 can be easily fixed along the column 2.

According to the structure for fixing the net member for the fence at the ski resort, the tension belt 5 connected to the net member 1 via the annular guide member 6 is pulled to prevent the column 2 from being lifted. The net member 1 can be moved upward, the tension position of the net member 1 can be easily adjusted according to the amount of snow, and the weight of the snow causes the net member 1 to slide naturally. Can be reliably prevented.

FIG. 2 shows a second embodiment of the structure for fixing a net member for a fence in a ski resort according to the present invention. The structure for fixing the net member for the fence in the ski resort is the same as the structure for fixing the net member for the fence in the ski resort in the first embodiment.
Further, the tension belt 5 is connected to the lower end of the net member 1 through the guide roller 42 arranged at the lower portion of the support column 2 and the other end thereof.

In this case, the net member 1 and the other end of the tension belt 5 are connected by the weft thread 12 of the net member 1.
Can be performed through an annular guide member 7 slidably arranged along the support column 2 by means of a hook 71 that locks the net member 1 and the tension belt 5 easily. As a result, the net member 1 can be smoothly moved along the support column 2.

According to the structure for fixing the net member for the fence at the ski resort, the guide belt 42 having the tension belt 5 connected to the net member 1 via the annular guide member 7 arranged at the lower portion of the support column 2 is provided. By pulling through the net member 1, the net member 1 can be moved downward, the tension position of the net member constituting the fence 1 can be easily adjusted according to the amount of snow, and the tension belt 5 can be easily adjusted. The processing on the other end side can be simplified. The other basic structure and operation of the structure for fixing the fence net member for the ski resort of the present embodiment are the same as those of the fixing structure for the fence net member for the ski resort of the first embodiment.

By the way, the above net member 1 has a structure shown in FIG.
As shown in, the tape-shaped core tape 10a forming the warp threads 11 and the weft threads 12 is made of a synthetic resin tape-shaped body such as polypropylene or ultra-high-molecular polyethylene having a small creep strain and a large tensile strength. It is preferable to use the existing one. This tape-shaped body is not particularly limited, but is a stretched polypropylene or ultra-high-molecular polyethylene having a draw ratio of 5 to 20 times, a thickness of 0.05 to 2.0 mm, and a width of about 5 to 30 mm. A uniaxially stretched tape-shaped body is used. Further, as the core tape 10a, it is possible to use a plurality of the above tape-shaped bodies stacked together, whereby the rigidity can be reduced while maintaining the tensile strength, and the winding property is good. Therefore, the net member 1 that is easy to handle can be obtained.

Further, the synthetic resin 10b for coating the surface of the tape-shaped core tape 10a has a high dielectric constant of ethylene-vinyl acetate copolymer or vinyl chloride resin, especially high frequency weldability, which will be described later. An ethylene-vinyl acetate copolymer having a vinyl acetate content of 5 to 35% by weight and having appropriate flexibility, which can prevent a frictional force on the column 2 and a large impact by the slider when the slider collides. It is preferable to use a polymer, and in particular, it is preferable to form irregularities on the surface of the synthetic resin 10b that covers the surface of the core tape 10a of the tape-shaped body forming the weft thread 12.

In this case, by adding a coloring material of an appropriate color that looks white (the color of the surrounding snow), for example, a bright color such as orange to the synthetic resin 10b covering the surface of the core tape 10a. The net member 1 can be colored, and thus the visibility of the fence to which the net member 1 is applied can be improved. Also,
By making one or several of the weft threads 12 constituting the net member 1 different in color from the other warp threads 11 and the weft threads 12, the visibility of the fence to which the net member 1 is applied can be further improved. It will be possible. Furthermore, by adding a fluorescent material (luminous material) to the coloring material, the visibility of the fence at night can be further improved.

By applying the above materials to the core tape 10a and the synthetic resin 10b covering the surface of the core tape 10a, a high frequency electric field is applied to the intersection 13 of the warp yarn 11 and the weft yarn 12 to cover the surface. Synthetic resin 10
By causing molecular strain and molecular friction in b to rapidly perform dielectric heating, the intersection portion 13 of the warp yarn 11 and the weft yarn 12 can be firmly welded. At this time, it is possible to prevent the core tape 10a from being deteriorated by heat by using polypropylene or ultra-high molecular weight polyethylene, which has a low dielectric constant and is hard to dielectrically heat, as the tape-shaped core tape 10a. In addition, the warp thread 11 and the weft thread 12
It is possible to adjust the welding strength of the intersection 13 of the above, and thereby absorb the impact force by partially breaking the welding of the intersection 13 of the warp 11 and the weft 12 when the skier collides at high speed. It is possible to prevent a large impact from being applied to the skier.

The spacing between the warp threads 11 and the weft threads 12 of the net member 1 can be appropriately set according to the usage mode of the net member 1, but when the weight of snow or the skier collides, a great impact is given to the skier. At least the upper end portion 12a and the lower end portion 12b of the net member 1, and, if necessary, the weft yarns 12 of the intermediate portion 12c, which are susceptible to being added or damaged by skiing or snowboarding, are increased so that the weft yarns 12 have a high density.
Is preferably arranged. In such a case, the net member 1 has an appropriate strength and rigidity and a cushion capable of reliably supporting the skier without a heavy impact on the skier when the weight of snow or the skier collides. It can be configured to exhibit sex.

More specifically, as shown in FIG. 3, the height H of the net member 1 is about 0.5 to 1.5 m,
The length L is set to about 10 to 50 m in consideration of handleability. In addition, the spacing between the weft threads is such that the upper end portion 12a and the lower end portion 12b having a high density of the weft thread 12 and, if necessary, the spacing h1 between the intermediate portions 12c is about 20 to 60 mm
The distance h2 between the other parts 12d and 12e of low density is
It is desirable to set it to about 60 to 200 mm. Moreover, it is desirable to set the interval W between the warp threads to about 60 to 200 mm.

In the net member 1 shown in FIG. 3 (the guide roller 41, the tension belt 5, etc. are not shown), the height H is 0.65 m, the length L is 30 m, and the weft spacing is the weft 12 spacing. Highly dense upper end 12a, lower end 12b
The distance h1 between the intermediate portions 12c is set to 40 mm, the distance h2 between the other low density portions 12d and 12e is set to 120 mm, and the distance W between the warp threads is set to 80 mm.

As described above, the net member 1 is formed by sewing the eyes of the net member 1 along the warp threads 11 of the net member 1 so that the support columns 2 are arranged at predetermined intervals, for example,
The pillars 2 are arranged at an interval of 1 to 5 m, and the pillars 2 are held so that the net member 1 is hung on the pillars 2 (snow layer).
It will be installed by establishing it in 3. In addition, in the present embodiment, a synthetic resin-coated steel pipe having a diameter of 35 mm, a length of 1.5 m, a length of 1.8 m, and a length of 2.1 m is selectively used for the support column 2. The size and the like can be arbitrarily selected according to the usage situation and the like.

Further, the surface of the synthetic resin 10b covering the surface of the tape-shaped core tape 10a constituting the weft thread 12 of the net member 1 is formed with irregularities, or the surface of the support column 2 is formed with irregularities or nodes. As a result, the frictional force between the net member 1 and the column 2 can be increased, and as a result, the net member 1
Can be firmly fixed to the column 2.

In the above embodiment, the tape-shaped body obtained by covering the surface of the core tape on the net member 1 with the synthetic resin is used as the warp threads 11 and the weft threads 12, and the warp threads 11 and the weft threads 12 intersect each other at a predetermined interval. Then, the net member formed by fixing the respective intersections is used, but the net member 1 that can be used for the fixing structure of the net member for the fence of the ski resort of the present invention is not limited to this. A net member obtained by forming a large number of holes or cuts in a synthetic resin sheet base material and uniaxially or biaxially stretching the holes, or corners obtained by integrally molding while melting molten synthetic resin through a nozzle or Widely use known synthetic resin net members such as diamond-shaped net members and net members obtained by Russell weaving synthetic fibers. It can be. In this case, in order to prevent the deterioration of the net member 1 due to freezing, it is preferable to use a net member that does not contain water or hardly contains water.

[0030]

According to the structure for fixing a net member for a fence in a ski resort of the present invention, a tension belt having one end connected to the upper end of the net member is fixed along the support pillar via a guide roller arranged at the upper end of the support pillar. Since the net member is held so as to be suspended, by pulling the tension belt connected to the net member that constitutes the fence, the net member can be moved upward while preventing the column from being lifted. It is possible to easily adjust the tension position of the net member that constitutes the fence according to the amount of snow, and it is possible to reliably prevent the net member from naturally sliding down due to the weight of snow. From that you can get a safe ski fence.

Further, by connecting the tension belt to the lower end of the net member through the guide roller arranged at the lower part of the support column, the tension belt connected to the net member constituting the fence is provided at the lower part of the support column. By pulling through the guide roller provided, it is possible to move the net member downward, it is possible to easily adjust the tension position of the net member constituting the fence according to the amount of snow, The treatment on the other end side of the tension belt can be simplified.

Further, the tension belt is connected to the net member through an annular guide member which is provided with a hook for locking the net member and a stopper for fixing the tension belt, and which is slidably arranged along the column. This makes it possible to easily connect the net member constituting the fence and the tension belt, to smoothly move the net member along the support pillar, and to easily fix the tension belt along the support pillar. You can

[Brief description of drawings]

FIG. 1 shows a first embodiment of a structure for fixing a net member for a fence of a ski resort of the present invention, (a) is a front view, (b) is a sectional view taken along the line AA of (a), (c). Is a rear view.

2A and 2B show a second embodiment of a structure for fixing a net member for a fence of a ski resort of the present invention, in which FIG. 2A is a front view, FIG. 2B is a sectional view taken along line BB of FIG. c) is a rear view.

FIG. 3 is a front view showing a net member for a fence in a ski resort used in the present invention.

FIG. 4 shows a fence fence net member used in the present invention, in which (a) is a cross-sectional view of a tape-like body constituting the fence net member, and (b) is an external perspective view of the net member.

[Explanation of symbols]

1 Net member 11 warp 12 weft 13 intersection 2 props 3 ground (snow layer) 41 Guide roller 42 Guide roller 5 tension belt 6 Guide member 61 hook 62 stopper 7 Guide member 71 hook

Claims (3)

[Claims] 1. A structure for fixing a net member for a fence in a ski resort, in which columns are sewn to sew a net member made of synthetic resin, and a tension belt having one end connected to an upper end of the net member. The structure for fixing a net member for a fence in a ski resort, characterized in that the net member is held so as to be suspended by fixing the above member along the support column through a guide roller arranged at the upper end of the support column. 2. The fixing of a net member for a fence at a ski resort according to claim 1, wherein the tension belt is connected to a lower end of the net member through a guide roller arranged at a lower portion of the supporting column. Construction. 3. The tension belt is connected to the net member through an annular guide member that is provided with a hook that locks the net member and a stopper that fixes the tension belt, and that is slidably arranged along the column. The fixing structure for a net member for a fence in a ski resort according to claim 1 or 2.