JPH09296630A - Snow removal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily remove snow on a roof by disposing a heater for heating the roof from inside a building by inclining the outer side surface of the roof to melt snow in contact with the outer side surface of the roof thereby to allow the snow to fall down. SOLUTION: The top surface of a roof of a building such as a dome 1 is inclined to heat the roof so that snow 4 frozen to a contact surface is melted, allowing the snow to slide down over the inclined surface of the roof. In this case, a nozzle 3 is disposed inside the building and a blowoff port of the nozzle 3 is directed to the inside of the roof such as a membrane 2. Next, hot air, steam or hot water is sent under pressure from a pump 5 through a hose 6 to the nozzle 3 to eject it therefrom to heat the roof from inside, so that heat is conducted to the outside to allow the snow 4 frozen to the roof to slide down from the roof. And in the case of the dome 1, since it is covered with a membrane 2, the membrane 2 is heated from inside so that heat is conducted to the outside to melt the snow 4 in contact with the membrane 2. At that moment, a water film having a thickness of 0.1mm or more is formed on the surface of the membrane 2 in contact with the snow 4 and hence frictional force of the snow 4 can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow removing device for removing snow accumulated on a roof of a building.

[0002]

2. Description of the Related Art Conventionally, for removing snow from a roof, as shown in FIG.
Water was sprayed directly on the roof of the film body b of the building such as the dome a with a hose c or the like to melt the snow d. Or people directly
He was climbing to the roof and dropping snow to the ground.

However, the conventional method has the following problems. <B> If water is sprayed directly on the snow, the snow will become heavier because it contains water, and the load capacity of the roof may be exceeded. <B> Since it requires manpower for every snowfall, it was very costly to remove snow. <C> If there is a large amount of snow in a short time, it is not possible to deal with snow removal.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a snow removing device for a building having a roof to which heat is transmitted. The outside surface of the roof is provided with a heating means for warming the roof from the inside of the building. A snow removing device, characterized in that snow accumulated in contact with a side surface is melted from the contact surface and dropped to remove snow.
Alternatively, in a snow removing device for a dome roof having a film structure, a heating means for inclining the upper surface of the film body of the roof and warming the film body from the inside is provided, and the snow cover contacting the outer surface of the film body is provided as a contact surface In a snow removal device or a snow removal device for a dome having a membrane structure, which is characterized by melting and dropping from the snow to remove snow, the membrane surface of the roof is inclined, and the membrane has a fluid flow path. Is provided to warm the film body by flowing a liquid having a temperature necessary to melt the snow into the flow path, and to dissolve snow falling on the outer surface of the film body from the contact surface and drop the snow.
In a snow removal device or a snow removal device for a dome having a film structure, which is characterized by removing snow, the upper surface of the roof film body is inclined, and a spraying means for spraying a fluid from the inside of the film body is provided. Of the dome having a film structure, or a dome having a film structure, characterized in that the film body is warmed by spraying on the film body, and the snowfall in contact with the outer surface of the film body is melted from the contact surface and dropped to remove the snow. In the snow removal device, the upper surface of the roof membrane is inclined, and a blowing means for blowing a fluid or heated vapor from the inside of the membrane is provided, and the fluid or heated vapor is blown onto the membrane to warm the membrane. A snow removing device characterized by removing a snow film by forming a water film having a thickness of 0.1 mm or more on a snow film contact surface to cut off the frictional force of the snow.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

<B> Snow Removal Device A snow removal device for a roof can remove the frosted joint surface by melting it by heating the roof of a building such as a dome. In that case, by giving an inclination to the upper surface of the roof, the snow adhering to the upper surface of the roof is melted on the adhering surface and can be removed by sliding down the slope of the roof.

<B> Heating of the roof by the nozzle The heating by the nozzle 3 is performed, for example, as shown in FIG.
The nozzle 3 is arranged inside the building such as, and the outlet of the nozzle 3 is directed to the inside of the roof such as the film body 2. Hot air, steam or hot water is pressure-fed from the pump 5 to the nozzle 3 through the hose 6 and jetted from the nozzle 3 to heat the roof from the inside.
Heat is transmitted from the inside to the outside of the roof, the contact surface of the snow 4 frozen on the roof is melted, and the snow slides off the roof.

When the building is a dome, since it is covered with the film body 2, when the film body 2 is heated from the inside, the heat is easily conducted to the outside of the film body 2 and the contact surface of the snow 4 is melted. Can be done.

When hot water is jetted, it is necessary to collect the jetted water with a gutter or the like. In the case of the dome 1, if a film body is also provided inside, the hot water can be jetted between them, so that the jetted water can be easily collected.

<C> Heating of the roof by the flow path The flow path 7 is formed on the inner surface of the roof. The flow path 7 is, for example, as shown in FIG.
When the roof has a membrane structure as shown in FIG.
It is advisable to use a double film provided with a film for forming.

The hose 6 of the pump 5 is connected to the inlet 71 of the flow path 7.
Is attached, and hot air or warm water is injected from the pump 5. The hot air or hot water that has circulated through the flow path 7 is discharged from the discharge port 72 of the flow path 7 and heated again by the heating device or the steam generation device 8,
It can be retransmitted by the pump 5. In addition, when the flow path 7 is long, it is preferable to divide it into several parts and provide an inlet 71 and an outlet 72 for each.

It is to be noted that the distance between the contact surface between the snow and the film body is 0.1.
When a water film having a thickness of mm or more is formed, the frictional force of snow can be reduced.

[0014]

According to the present invention, the following effects can be obtained. <a> Heat is applied from the inside of the roof to melt the adhesive surface at the boundary between the roof and the snow cover, and the slope of the roof is used to drop the snow, so snow can be easily removed. <B> Snow can be removed with a simple device that blows hot air from the inside of the roof. <C> Snow can be removed with a simple structure in which a fluid passage is provided inside the roof.

[Brief description of drawings]

[Figure 1] Snow removal diagram of dome by nozzle

[Figure 2] Snow removal diagram of the dome by the fluid flow path

[Fig. 3] Snow removal diagram of a conventional dome

[Explanation of symbols]

 1 ... Dome 2 ... Membrane 3 ... Nozzle 4 ... Snow 5 ... Pump 6 ... Hose 7 ... Channel 71 / Inlet 72 / Discharge 8 / ...

Claims (5)

[Claims] 1. A snow removing device for a building having a roof to which heat is transferred, wherein a heating means is provided for inclining an outer surface of the roof to heat the roof from the inside of the building, and a snow contact surface for contacting the outer surface of the roof is provided. A snow removal device characterized by melting and dropping the snow to remove snow. 2. A snow removing device for a dome roof having a membrane structure, wherein the roof has a slope on its upper surface, a heating means for warming the membrane from inside is provided, and snow accumulated in contact with the outer surface of the membrane. A snow removal device characterized by melting snow from the contact surface and dropping it to remove snow. 3. A snow removing device for a dome having a membrane structure, wherein the roof membrane has an upper surface inclined, a fluid passage is provided in the membrane, and a liquid having a temperature necessary for melting snow is provided. A snow removal device, characterized by warming a film body by flowing through the flow path, melting snow falling in contact with an outer side surface of the film body and dropping the snow from the contact surface to remove the snow. 4. A snow removing device for a dome having a membrane structure, wherein a roof membrane has an upper surface inclined, a spraying means for spraying fluid from the inside of the membrane is provided, and the fluid is sprayed onto the membrane. A snow removal device, which warms the body, melts the snow that contacts the outer surface of the film body, and then drops it to remove the snow. 5. A snow removing device for a dome having a membrane structure, wherein the roof membrane has an upper surface inclined, and a spraying means for spraying fluid or heated steam from the inside of the membrane is provided. The snow removing device is characterized in that the film is warmed by spraying the film onto the film, a water film of 0.1 mm or more is formed on the film contact surface of the snow, and the frictional force of the snow is cut off to remove the snow. .