JPH0226976Y2 - - Google Patents

Description

[Detailed description of the invention] Technical Field The present invention relates to a snow accumulation prevention device, and is particularly used to prevent snow from accumulating on a flat and relatively wide ground surface such as an outdoor sports field such as a baseball ground or tennis court. This invention relates to a snow accumulation prevention device suitable for.

Prior Art and its Problems In the snowy regions of northern Japan, outdoor playgrounds cannot be used for four to five months during the winter season due to snowfall even on sunny days. Snow removal requires a lot of effort, and even if snow can be removed, the ground becomes muddy and takes time to dry, making it practically unusable.

For this reason, various efforts have been made to prevent snow accumulation, but nothing effective has yet been developed.

Purpose of the invention In view of the above points, the object of the present invention is to provide a device that can be easily set up and removed by a relatively small number of people and can effectively prevent snow accumulation.

Structure of the invention That is, the snow accumulation prevention device according to the present invention is a snow accumulation prevention device for preventing snow from accumulating on a substantially flat ground surface, and is set along the periphery of the ground surface where snow accumulation is to be prevented. , a plurality of fence members forming an enclosure; a waterproof sheet such as a vinyl sheet that is laid inside the enclosure so that its peripheral portion is locked to the enclosure, and forms a water storage tank with a developed upper part; A water supply device that supplies water or hot water into a water storage tank; and a drainage device that discharges water so as to maintain a constant level of water in the water storage tank.

Embodiments Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.

FIG. 1 shows a plan view of a snow accumulation prevention device 10 according to the present invention.

This snow accumulation prevention device first includes a plurality of fence members 12, 12' arranged along the periphery of the ground surface where snow accumulation is to be prevented and forming an enclosing fence. In the illustrated embodiment, there are a plurality of consecutive rectangular ground surfaces A, B, C, D, E on which snow accumulation is to be prevented.
The fence members 12 are set so that an enclosing fence is formed for each.

As shown in FIG. 2, each fence member 12 has a pair of elongated plates 14 pivoted by a hinge 16 so that it can be opened and closed like a stepladder. When removed, it is closed to facilitate transportation and storage. As shown in FIG. 2, a pair of links 18 are pivotally connected between the plates 14 to limit the opening angle of both plates. Further, at the lower end of the surface of the plate material 14, a cylindrical member 2 is provided at an appropriate interval in the length direction of the plate material 1.
0 (Fig. 3), and the fence member 12
When setting the fence member on the ground surface, stakes 22 are driven into the ground through the cylindrical member 20 to fix the fence member. In addition, in Figure 2, 2
4 is a sheet locking member for pressing and locking a waterproof sheet, which will be described below, to the top of the fence member 12.

The snow prevention device 10 further includes a waterproof sheet that is laid on the ground surface within the fence so that its peripheral portion is locked to the fence formed by the fence member, and whose upper portion forms the developed water tank 28. It has 30. As the waterproof sheet 30, for example, a vinyl sheet is preferable. Vinyl sheets are commercially available in rolls of various widths (up to 7.2 m), and a roll 32 of this vinyl sheet is utilized in the illustrated embodiment. That is, in the illustrated embodiment, for a rectangular enclosure, a vinyl sheet roll 32 wider than the width w of the enclosure is prepared, and the vinyl sheet roll 32 is rolled from one end of the rectangular enclosure to the other end. The vinyl sheet is then rolled onto the ground surface inside the enclosure, with the peripheral edge of the vinyl sheet tightly engaged with the fence members of the enclosure, as described above. In the device shown in FIG. 1, the sheet 3
It is set to 0. As shown in FIG. 2, adjacent sheets 30 overlap each other beyond the top of the fence member 12 and are fitted with the aforementioned sheet locking members 24. Both longitudinal ends of the sheet 30 are also hung over the fence members 12, 12' beyond the top. Therefore, the peripheral portion of this sheet 30 is lifted by the fence member 12, and the inner portion thereof is placed on the ground surface to form a dish shape, forming a water tank.

Reference numeral 40 in FIG. 1 designates a device for supplying water to the water tank formed by the waterproof sheet 30. This water supply device 40 includes a water storage tank 42 buried underground in the ground, a pump 44 that pumps water from the water storage tank, and a pipe that supplies the water pumped by the pump to each water tank formed by the sheet 30. 46.

As mentioned above, the snow accumulation prevention device 10 is further provided with a drainage device for discharging water so as to keep the height of the water stored in the water tank constant, but in the illustrated embodiment, this device is not provided. is formed as follows. In other words, the fence member 12' forming the end of the rectangular enclosure fence in the length direction away from the water supply pipe 46 is separated from the other fence member 12.
The gutter member 50 is lower than the fence member 12', and the end portion 30' of the waterproof sheet 30 hung over the fence member 12' is provided on the ground adjacent to the fence member 12'.
The water in the water tank flows out over the fence member 12' and is discharged into the gutter member 50. One end of the gutter member 50 is connected to the water storage tank 42 through a pipe 52, so that the discharged water is guided to the tank 42.

The snow accumulation prevention device according to the present invention is used in the following manner.

First, the water storage tank 42 is buried in the ground, and the water pump 44 and water supply pipe 46 are set in advance. When snowfall is expected, fence members 12, 12' are lined up around the ground surface where it is necessary to prevent snow accumulation to create an enclosing fence. The tarpaulin roll 32 is then rolled from one end of the fencing to the other, and the sheet 30 is spread out as described above to form a water tank. in this case,
For example, when spreading the sheet 30 on the ground surface A to E, from the ground surface A at the end, B, C, D, E.
If the sheets are spread out in this order, the side edges of adjacent sheets will overlap one after another as shown in FIG. 2, making the work easier.

After doing this, when the water pump 44 is operated, water is supplied from the tank 42 through the pipe 46 into the water tank formed by each sheet 30, and the water is kept at a certain height. When this happens, it flows out over the fence member 12' and is returned to the tank 42 via the gutter member 50.

Even when snow first falls in a water tank with such a flow, it melts quickly and cannot accumulate. The reason why the water continues to flow is to prevent it from freezing even if the temperature near the ground surface becomes very low.If the surrounding temperature is such that there is no possibility of freezing, There's no need.

Even in the snowy regions of northern Japan, snowfall rarely lasts more than a week. Therefore, when it is desired to use the ground when the snow has stopped falling, the ground surface underneath is in a dry state by removing the tarpaulin sheet and the fence member, and the ground can be used. If it is not necessary to use the entire ground surface covered by the snow prevention device, it is sufficient to remove only the sheet and fence member that will be used.

Effects The snow accumulation prevention device 10 according to the present invention is constructed as described above, and by making the fence members 12, 12' of appropriate sizes, it can be easily set up and removed by a relatively small number of people. Snow accumulation can be reliably prevented and outdoor playgrounds can be used effectively. Up until now, snowy areas have been at a great disadvantage as they cannot practice or compete in outdoor sports during the winter, but as long as the weather is clear, this device can overcome this disadvantage.

Furthermore, the water stored in the water storage tank can be used for flushing toilets in schools, inns, etc., and therefore natural precipitation can be used effectively.

Furthermore, although the device of the present invention was made for the purpose of preventing snow accumulation as described above, it can also be used against rain. That is, if the fence members are set and a waterproof sheet is placed when rain is expected, the ground will not get wet even if it rains, and the ground can be used immediately after the rain by removing them. Furthermore, if rainwater from rainfall is stored in a storage tank, the water can be used as water for preventing snow accumulation as described above, which is economical.

Note that the device according to the present invention is not limited to the above-mentioned embodiments. For example, when the device of the present invention is used in an attached ground of an inn, hotel, etc., a drainage pipe for hot water discharged from a bath, etc. is directly connected to the device of the present invention, and this is connected to the water supply device 40.
It can be used as In addition, the drainage system also includes the fence member 12' as well as the other fence member 12 as in the above embodiment.
Rather than configuring it lower than the fence member 1
2' may be the same height as the other parts, but a drainage opening may be provided at an appropriate height on the edge of the sheet 30 that is secured to the member, and water may be drained from there. good.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the snow accumulation prevention device according to the present invention; FIG. 2 is an end view of the fence member in the set state;
FIG. 3 is a side view of the fence member. 10... Snow accumulation prevention device, 12, 12'... Fence member, 30... Waterproof sheet.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A snow accumulation prevention device for preventing snow from accumulating on a substantially flat ground surface, which is set along the periphery of the ground surface to prevent snow accumulation and forming an enclosing fence. a plurality of fence members; a waterproof sheet such as a vinyl sheet that is laid inside the fence so that its peripheral edge is locked to the fence and forms a water tank with an open top; and a waterproof sheet such as a vinyl sheet; A snow accumulation prevention device comprising: a water supply device that supplies water or hot water to a water storage tank; a drainage device that discharges water so as to maintain a constant height of water in a water storage tank; (2) Make some of the fence members lower than other fence members and set the periphery of the waterproof sheet so that it hangs outward beyond the top of the fence members arranged like an enclosure fence, and The snow accumulation prevention device according to claim 1, wherein the drainage water flows out beyond the peripheral edge of the waterproof sheet on the low fence member.