JPH03205074A - Slope adjusting mechanism for skiing slope - Google Patents

Abstract

PURPOSE:To easily change and adjust the slope of a skiing ground by laying mats which possesses elasticity and flexibility in the lower part of a slope and allowing the mat to include a plurality of vacant parts and allowing each of the vacant part to be filled with bead shaped fillers and connecting a mechanism for discharging the fillers. CONSTITUTION:When a selector valve 30 of a mechanism 20 connected with a bead bag (vacant part) 18 which exists directly under a prescribed position of a slope G is turned to the I-side, the pressurized oil is supplied into a hydraulic cylinder piston 24, and pistons 24a and 22a rise, and the inside of a bead bag 26 is filled with filling material, i.e., beads B. Accordingly, the bead bag (vacant part) 18 expands, and the slope part in the upper part rises. Further, when the selector valve 30 of the mechanism 20 is turned to the O-side, the pressurized oil is discharged from the hydraulic cylinder piston 24, the pistons 24a and 22a lower, and the beads B are discharged into the bead piston 22 from the vacant part 18. Then, the bead vacant part 18 contracts, and a layer 12 in the upper part and the slope G part are made flat or recessed.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to the improvement of ski slopes where ski competitions are held;
In particular, it relates to freely adjusting the slope, unevenness, and other conditions (hereinafter simply referred to as "gradient") of the ski slope.

[Conventional technology] Skiing has traditionally been a very popular sport, but
The location conditions that can be used as ski slopes are limited, and it is difficult to enjoy skiing in the suburbs of Obefube.

Therefore, in recent years, people's ski resorts have been constructed. Hitoni ski resorts are popular because they can be easily accessed from urban areas and can be enjoyed all year round, and many have been built.

[Problem to be Solved by the Invention] When skiing down a slope, the required technique changes forever depending on the slope of the slope, so it is necessary to instantly judge the technique that is most suitable for the slope at that time. Skiing has become a great pleasure for skiers.

In other words, skiers quickly get bored with unchanging slopes.

However, although human ski resorts have grown in size, they have been limited in terms of profitability between construction costs and operating costs, and it has been virtually impossible to change the slopes in the past. On the other hand, in the current situation where the number of private ski resorts is increasing, it is possible to freely adjust the gradient of the slopes of the private ski resorts at a low cost and change the slope to create a private ski resort where skiers will not get bored. I want to,
The demand for this has become extremely large.

The present invention was proposed in view of the above-mentioned needs, and is a slope adjustment mechanism for a ski slope that makes it possible to easily change and adjust the slope of a ski slope to bring about changes in the slope. intended to provide.

[Means for Solving the Problems] In the ski slope slope adjustment mechanism of the present invention, a stretchable and flexible mat is laid below the green, the mat includes a plurality of cavities, and the Each of the sections is connected to a mechanism for filling and discharging bead-shaped fillers.

When implementing the present invention, the ski resort to be implemented is preferably a human ski resort that has artificial snow-making equipment, but the present invention can also be applied to a natural ski resort that does not have artificial snow-making equipment.

Preferably, the mechanism for filling and discharging the filling material includes a screw-type positive displacement pump or a piston-plunger mechanism operated by hydraulic pressure or the like. The bead-shaped filler is preferably housed in a piston of a piston-plunger mechanism or in a dedicated tank provided within the system.

[Function] According to the present invention having the above-described configuration, by filling a predetermined cavity with a bead-shaped filler, the cavity is expanded and the slope portion located above it is raised. I can do it. On the other hand, by discharging the bead-shaped filling contained in other predetermined cavities,
The hollow section can be contracted to make the ski slope section above it depressed. Therefore, by setting in which cavity the bead-shaped filler is to be filled and discharged, the slope of the slope can be freely set, and it is possible to give the slope a desired change.

If the cavity is expanded or contracted using fluid or gas, there is a problem in that the appropriate hardness suitable for the slopes cannot be obtained, but by using bead-shaped fillers, this problem can be solved. problems can also be solved.

[Example] Hereinafter, the present invention will be described in detail with reference to the attached drawings.

1 and 2 show a first embodiment of the present invention,
The slope adjustment mechanism of the ski slope, which is generally designated by the reference numeral 10 in FIG. , the mat] 4 is provided with a plurality of cavities 18 partitioned by partition walls 16 .

Each of the hollow portions 18... has a reference numeral 20...
A mechanism for filling and discharging a bead-shaped filling B (FIG. 2), indicated by .

Here, the cavity 18 is configured as a bead bag filled with bead-shaped filler B, and the bead bag (cavity) 18 and the bead cylinder piston 22 are connected by a pipe 28.

And the piston 22a of the bead cylinder piston 22
is configured to interlock with the piston 24a of the hydraulic cylinder piston 24.

Note that the reference numeral 30 in FIG. 2 indicates a switching valve that switches between an I side that supplies pressure oil to the hydraulic cylinder piston 24 and an O side that discharges pressure oil from the hydraulic cylinder piston 24. Further, reference numeral 32 in FIG. 1 indicates a hydraulic device for supplying the pressure oil.

To explain the operation of the first embodiment, first, when it is desired to make a certain position on the ski slope G into a raised state, the mechanism 20 connected to the bead bag (hollow part) 18 located directly below the certain position Switch the switching valve 30 to the I side. Pressurized oil is then supplied to the hydraulic cylinder piston 24, and the piston 248N22a rises to fill the bead bag 26 with the filler, ie, the beads B. As a result, the bead bag (cavity) 18 expands, and the slope above it swells.

On the other hand, when flattening or recessing a raised part on ski slope G, switch the switching valve 30 of the mechanism 20 connected to the bead bag (hollow part) 18 directly below that part to the O side. , causing pressure oil to be discharged from the hydraulic cylinder piston 24. As a result, the piston 24a,
22a is lowered, and beads B are in the bead bag (hollow part) 1
8 into the bead piston 22. Then, the bead bag (cavity part) 18 contracts, and the layer 12 and slope G above it become depressed.

FIG. 3 shows a second embodiment of the invention. In addition, the third
In the figures, the same members as shown in FIGS. 1 and 2 are given the same reference numerals.

In this second embodiment, a screw-type positive displacement pump 40, for example, is provided in place of the hydraulic cylinder piston. A dedicated bead storage section (bead tank) 42 provided in the system is connected to the bead bag 18 via the pump 40 and piping 44. Further, a pipe 46 branches off from the pipe 44, and the branch pipe 46 is connected to a vacuum pump 50 via a valve 48.

When raising a predetermined portion on the slope, for example, the pump 40-1 is operated to supply beads B from the bead tank 42 to the bead bag 18-1. As a result, the bead bag 1.8-1 expands, and the expansion is transmitted to the slope via the layer 12, causing the portion directly above the bead bag 18-1 to swell. By appropriately adjusting the supply amount of beads B, the degree of swelling of the portion can be freely adjusted.

On the other hand, for example, in order to dent the part of the slope directly above the bead bag 18-1, the pump 401 is stopped and the valve 48-1 is opened. Then, when the vacuum pump 50 is operated, the beads B filled in the bead bag 18-1 are sucked by negative pressure and discharged from the bag 18-1.

As a result, the bag 18-1 contracts and the part of the slope directly above it becomes depressed. By appropriately adjusting the amount of beads B to be discharged, it is possible to easily adjust the degree to which the beads are depressed.

If the above-described first and second embodiments are applied to a ski slope, for example, as shown in FIG. A mechanism 20 for supplying and discharging bead-like filling is installed. Then, in order to realize the slope desired to be imparted to slope G, it is calculated which section A should be raised or depressed. A desired gradient can be obtained by supplying a predetermined amount of beads to the bead bag 18 located below a predetermined section A or discharging a predetermined amount of beads from the bead bag 18 in accordance with the calculation result.

Furthermore, creating random irregularities using random numbers can also be employed as one method of gradient selection.

[Effects of the Invention] The effects of the ski slope slope adjustment mechanism of the present invention are listed below.

(1) By filling a predetermined cavity (bead bag) with bead-shaped filling, the slope above it becomes swollen, while the bead-shaped filling contained in the cavity (bead bag) When the material is removed, the cavity contracts and the slope above it becomes depressed. Therefore, by appropriately calculating which cavities (bead bags) to fill and discharge the bead-shaped filler, the slope of the slope can be set freely, meeting the needs of skiers who want to ski on slopes that vary. I can do it.

(2) By using a bead-shaped filler, the appropriate hardness suitable for the slopes can be obtained even when the cavity is expanded and contracted.

(3) By being able to freely set the slope of the slope, it is possible to freely adjust the difficulty level of the same slope from professional competition to general leisure guests.
This will expand its usage.

[Brief explanation of drawings]

FIG. 1 is a front sectional view showing a first embodiment of the present invention, FIG. 2 is a partially enlarged view of FIG. 1, FIG. 3 is a front sectional view showing a second embodiment of the invention, and FIG. FIG. 1 is a plan view of a ski slope in which the present invention was implemented. 10... Slope slope adjustment mechanism 14... Mat 16... Partition wall 18... Cavity (bead bag) Mechanism 20... Supplying bead-shaped filling, G... Slope B.・・Beads ejecting Fig. 3

Claims (1)

[Claims] A stretchable and flexible mat is laid below the ski slope, and the mat includes a plurality of cavities, each of which is provided with a mechanism for filling and discharging bead-shaped filler. A ski slope slope adjustment mechanism characterized by being connected.