JP2000204724A - Snow removal system for roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a snow removal system for a roof low in a facility cost and a running cost and capable of easily applying to an existing house. SOLUTION: A jet nozzle 1 for cutting fallen snow by mechanical energy of hot water jetted is set on a column erected on a roof or sideward of a house. Hot water is collected on the lower layer part of a fallen snow layer, and snow cut by forming a water film is slid to be fallen from the edge of an eaves. A water repellent layer 5 is formed on the surface of a roof tile in the neighborhood of the edge of the eaves, and if hot water is jetted from the jet nozzle 1 toward the part, frozen snow can be fallen easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof snow removal system for ordinary houses in heavy snowfall areas.

[0002]

2. Description of the Related Art In heavy snowfall areas, manual snow removal has been practiced for a long time to remove snow on roofs of ordinary houses. However, recently, due to the progress of nuclear families and the aging of society, labor shortage of snow removal work has become a social issue. It is a considerable burden. For this reason, various roof snow removal systems for eliminating the need for snow removal have conventionally been developed.

First, there is a device in which a perforated pipe is installed on a roof, and hot water from a heating source such as a boiler is flowed little by little to use the heat energy of the hot water to melt snow. This snow removal system can be expected to have a certain effect if it is operated continuously. However, since a large amount of hot water is required, a heating source and a hot water tank are increased in size, and high equipment costs and running costs are required. In addition, there is a problem that the house is easily wetted because a large amount of water is used.

[0004] Next, there is an apparatus in which a rubber mat is placed on a roof and hot water is supplied to the inside to melt snow. However, a large-sized heating source is required, so that the equipment cost exceeds 2 million yen. In addition, since the rubber mat is in close contact with a roof material such as a tile, water easily accumulates between the rubber mats, which may cause a roof to leak rain. Further, the rubber mat containing warm water has a considerable weight, and thus has a problem that a burden is placed on the roof.

[0005] In addition, there is a snow removal system having a structure in which an electric heater is embedded in the inside or a structure in which an electric heater is laid under the tile. , Again the equipment cost is 250-30
It costs as much as 10,000 yen. In addition, when an electric heater is laid under a roof tile, waterproof work under the roof tile must be performed completely, and there is a problem that workability is poor. In addition, there is a problem that running costs such as electricity costs are increased in order to obtain a sufficient snow melting effect.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and the equipment cost and the running cost are significantly lower than those of the conventional products. This was done to provide a snow removal system for roofs that is less likely to cause problems.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a roof snow removing system according to the first aspect of the present invention comprises:
A jet nozzle is installed on the roof of the house to cut the snow on the roof by the mechanical energy of the hot water that is jetted, and to concentrate the falling water on the lower part of the snow layer and drop it. . The snow removal system for a roof according to the second aspect of the present invention cuts off the snow on the roof by mechanical energy of hot water jetted onto the upper end of a pillar erected on the side of the house,
A jet nozzle is provided for concentrating the falling water on the lower part of the snow layer and dropping it. It is effective to form a water-repellent layer on the surface of the roof tile near the eaves and to jet hot water from the jet nozzle toward the portion. Further, the jet nozzle can be of a movable type such as a sliding type or a swing type. In particular, it is preferable that the jet nozzle is swung while swinging.

The roof snow removal system of the present invention injects hot water from a jet nozzle after a certain amount of snow cover, cuts off the snow on the roof by the mechanical energy, and concentrates the running water on the lower part of the snow layer. Then, a water film is formed on the lower surface of the snow cover to make the cut snow slippery and fall from the roof. In particular, if a water-repellent layer is formed on the surface of the roof tile near the eaves and hot water is sprayed from the jet nozzle toward that part, it is easy to eliminate icing between the roof tile and snow In this way, snow removal near the eaves is possible. As described above, the roof snow removal system of the present invention mainly utilizes the mechanical energy of the hot water jet, and uses only the heat energy as a secondary component. Running cost is reduced. Further, since a large heating source or the like is not required, the equipment cost is also reduced. In addition, since it is only necessary to place it on the roofing material of an existing house, construction is easy, and there is no fear of leaking since water is only injected from the tile. When the roof is divided into a ridge part, a slope part, and an eaves part, the present invention is particularly effective for removing snow on the eaves part.
Hereinafter, preferred embodiments of the present invention will be described.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) FIG. 1 is an overall view of a house to which a roof snow removing system according to the first embodiment of the present invention is attached.
The jet nozzles 1 are provided. These jet nozzles 1 jet hot water sent from a hot water tank 2 by a pump 3 toward a roof, and the jet direction is slightly more than a parallel line to the surface of the roof as shown in FIG. Set downward. This is because the snow energy on the roof is cut by the mechanical energy of the jet.

The jet nozzle 1 of this embodiment has a structure shown in FIG.
As shown in (1), it has a function of spraying hot water in a fan shape, and three are installed to cover the entire roof. However, if the jet nozzle 1 is a swing type or has a structure that can slide along the ridge, only the central one may be used. If the hot water tank 2 uses midnight power, the electricity bill can be saved.

In the snow removing system for a roof constructed as described above, hot water is jetted from the jet nozzle 1 after a certain amount of snow has fallen, and the snow on the roof is cut off by the mechanical energy. In the vicinity of the eaves, the hot water concentrates on the lower part of the snow layer and melts the snow at the interface between the roof and the snow by thermal energy to form a water film. Therefore, the cut snow can be floated on the water film and slid, and can be dropped from the eaves.

The roof snow removal system of the present invention mainly utilizes the mechanical energy of a hot water jet.
Injection of warm water for several minutes to several tens of minutes at a time is sufficient.
Since heat energy is used only as a secondary product, the required amount of hot water is smaller than in a conventional snow removal system using only heat energy, and running costs such as electricity and water bills are reduced. Further, since a large heating source or the like is not required, the equipment cost is also reduced. In addition, since it is only necessary to place it on the roofing material of an existing house, the construction is easy, and since only the top surface of the roofing material such as tiles is watered, there is no possibility of rain leakage.

(Embodiment of Claim 2) FIGS. 3 and 4
Shows an embodiment of the second aspect of the present invention. In the invention of claim 1, the jet nozzles 1 are installed on the roof, but in the invention of claim 2, the pillars 4 are erected on the side of the house, and two jet nozzles 1 are installed at the upper end thereof. The pillar 4 serves as a pillar and a pipe for supplying hot water, and is provided on both sides of the house. As shown in FIG. 4, the jet nozzle 1 sprays hot water toward the roof in a fan shape, and may be a swing type.

The roof snow removing system according to the second aspect of the present invention is different from the roof snow removing system according to the first aspect of the present invention in that no work is required on the roof, so that the construction is simple and the appearance is clear. There is. In addition, there is no fear that an extra load is applied to the roof or that rain is leaked. The roof snow removal system according to the second aspect of the present invention also cuts snow on the roof by the mechanical energy of the hot water jetted from the jet nozzle 1, and concentrates the hot water on the lower layer of the snow layer to generate heat from the roof. It melts the snow at the interface with the snow and allows the cut snow to float on the water film and slide off the eaves.

(Embodiment of Claim 3) FIG. 5 shows an embodiment of claim 3 of the present invention. According to the third aspect of the invention, the water-repellent layer 5 is formed on the surface of the roof tile near the eaves. The vertical width of the water-repellent layer 5 may be about three tiles from the eaves. In order to form the water-repellent layer 5, a commercially available water-repellent material such as a fluorine-based resin or a silicon-based resin may be applied or attached to the tile surface. Then, hot water is jetted from the jet nozzle 1 toward that portion, and the snow is cut by the mechanical energy of the hot water jetted in the same manner as described above. In this case, it is preferable that the jet nozzles 1 are installed at four places slightly above the eaves, and that hot water is sprayed from the horizontal direction to the eaves. In addition, if the jet nozzles are sequentially operated without being operated at the same time, the size of the hot water supply facility and the pump can be reduced.

If the water-repellent layer 5 is formed on the surface of the roof tile as described above, even if the snow partly melts due to a temperature change and then freezes due to the temperature drop again,
Snow can easily fall from roof tiles. In the case of a tiled roof, even if hot water is jetted from the jet nozzle 1, hot water concentrates only on the valleys of the tiles. Although it took a long time to travel, the present invention according to claim 3 allows snow to fall from the eaves in a short time. Therefore, the size of the hot water tank 2 can be reduced. If the snow on the eaves is removed, the snow on the eaves can easily fall off, and the eaves can be prevented from breaking due to the weight of the snow.

In any of the inventions, when the jet nozzle 1 is swirled, it is preferable that the jet nozzle 1 be swung while being swung in a direction perpendicular to the swirling surface. Thus, the cutting width can be made sufficiently large, and the cut snow can be prevented from freezing again.

[0018]

As described above, the roof snow removal system of the present invention cuts snow on the roof by the mechanical energy of the hot water jetted from the jet nozzle and drops the snow from the roof. Therefore, the running cost is lower than that of the conventional snow removing system using thermal energy. Further, since a large heating source or the like is not required, the equipment cost is also reduced. In addition, there are many advantages such as easy installation on an existing house and less burden on the house. Further, according to the third aspect of the present invention, snow frozen on the roof tile can be easily dropped, and the system cost can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is an overall view of a house to which a snow removal system for a roof according to the first aspect of the present invention is attached.

FIG. 2 is a cross-sectional view showing a jet direction of a jet nozzle.

FIG. 3 is an overall view of a house to which the roof snow removal system according to the second aspect of the present invention is attached.

FIG. 4 is a plan view showing a jet direction of a jet nozzle.

FIG. 5 is an overall view of a house to which the roof snow removal system according to the third aspect of the present invention is attached.

[Explanation of symbols]

1 jet nozzle, 2 hot water tank, 3 pump, 4
Pillar, 5 water-repellent layer

Claims (5)

[Claims] 1. A roof snow removal system comprising a jet nozzle installed on a roof of a house to cut and drop snow on the roof by mechanical energy of hot water injected. 2. A roof snow removal system, comprising a jet nozzle that cuts and drops snow on the roof by mechanical energy of hot water that is sprayed, at the upper end of a pillar that stands on the side of the house. . 3. The roof snow removal system according to claim 1, wherein a water-repellent layer is formed on the surface of the roof tile near the eaves, and hot water is jetted from the jet nozzle toward the water-repellent layer. 4. The roof snow removal system according to claim 1, wherein the jet nozzle is movable. 5. The roof snow removal system according to claim 4, wherein the jet nozzle is swung while swinging.