JP7296226B2 - Snow cornice prevention device and roof - Google Patents

Description

TECHNICAL FIELD The present invention relates to a snow cornice prevention device for preventing the formation of snow cornices, and more particularly to a snow cornice prevention device provided on the roof of a building or the like.

In areas with heavy snowfall and heavy snowfall, cornices are likely to be formed on the outer periphery of building roofs and the like in winter. Normally, snow cornices are formed when snow accumulated on a roof or the like receives the action of wind during a snowfall, and the snow mass extends horizontally on the outer periphery of the roof. As the snow piles up, the snow cornices are compressed and become heavier. Heavy snow cornices may re-solidify (freeze) after melting due to the difference in temperature between day and night. be done.

For this reason, for the purpose of preventing the formation of snow cornices due to snow that accumulates on rooftops or the like, for example, Patent Document 1 proposes a hardware for snow cornice prevention. The snow cornice prevention hardware described in Patent Document 1 includes a roof peripheral joint portion that is joined to the roof peripheral portion of the building, and a first side surface and a second side surface (snow melting portion ), and a third side surface continuously extending from the lower side of the second side surface and extending toward the roof peripheral joint portion side. Air is introduced into a space surrounded by the first side, the second side and the third side, and the temperature of the second side and the first side is raised by convection of the introduced air to melt the snow.

JP 2008-163617 A

However, the snow cornice prevention hardware described in Patent Document 1 has a problem that it has a large impact on the exterior design of the building because the snow-melting part that forms a chevron is provided at the peripheral edge of the roof.
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and its object is to provide a snow cornice prevention device and a roof that have high snow cornice cutting performance and that do not easily affect the exterior design of a building.

According to the snow cornice prevention device of the present invention, the snow cornice cutting part having the first mesh-like part and the second mesh-like part whose main surfaces face each other and are spaced apart from each other, and the snow cornice cutting part are provided. and a pillar for supporting the upright posture, wherein the meshes of the first mesh-shaped portion and the meshes of the second mesh-shaped portion are arranged in the direction orthogonal to the direction in which the main surfaces face each other in the snow cornice cut. It is solved by shifting and arranging.

In order to suppress the formation of snow cornices, it is good to prevent the accumulated snow from becoming ice. In the snow cornice prevention device described above, the first mesh portion and the second mesh portion are arranged to face each other with a gap therebetween, thereby preventing the snow from turning into ice by passing wind through the snow piled up on the snow cornice. In addition, when the temperature is high in the daytime, the snow cornice is warmed by the sunlight, and the snow in contact with the snow cornice can be melted, thereby suppressing the formation of the snow cornice.
In addition, the meshes of the first mesh portion and the second mesh portion are difficult to see from the outside, and even if the snow cornice prevention device is arranged on the roof, the exterior design of the building is less affected.
In addition, since the meshes of the first mesh-shaped part and the meshes of the second mesh-shaped part are displaced, the snow that has passed through one mesh is caught by the other mesh, so that the snow passes through the snow cornice cut part. Efficient capture of snow.

Further, in the snow cornice prevention device, the snow cornice cutting portion includes a frame having a predetermined thickness, and the first mesh portion and the second mesh portion are supported by the frame so as to be spaced apart from each other. , is preferred.

By supporting the first mesh portion and the second mesh portion from the frame, the main surfaces of the first mesh portion and the second mesh portion are kept at a constant distance. The distance makes it easier for the wind to pass through, making it difficult for the snow to turn into ice.

Further, in the snow cornice prevention device described above, it is preferable that the first mesh portion and the second mesh portion are formed by winding a mesh member around the frame.

By winding the mesh member around the frame to form the first mesh part and the second mesh part, for example, the mesh member can be easily fixed to the frame, and the snow cornice can be easily produced. can be done.

Further, in the snow cornice prevention device described above, it is preferable that the thickness of the frame is set within a range of 10 mm to 90 mm.

By setting the thickness of the frame to 10 mm to 90 mm, the distance between the first mesh portion and the second mesh portion is maintained at the same distance as the thickness of the frame, and the formation of snow cornices can be efficiently suppressed.

Moreover, in the snow cornice prevention device described above, it is preferable that each of the meshes of the first mesh portion and the second mesh portion has a hexagonal mesh shape.
By making the mesh shape hexagonal, winds in various directions can easily pass through, snow is less likely to become ice, and the formation of snow cornices can be suppressed more effectively.

In addition, according to the roof of the present invention, the above-described snow cornice prevention device and a parapet are provided, and the snow cornice prevention device is installed inside the parapet at a predetermined distance from the parapet. is resolved by
By providing the cornice prevention device in the vicinity of the parapet, for example, snow accumulated on the roof can be dammed up to prevent snow from accumulating on the parapet beyond the cornice prevention device.
The amount of snow accumulated on the parapet is reduced, thereby suppressing the formation of snow cornices on the parapet.

In the above roof, it is preferable that the parapet has a coping on the top, and a heater and a graphite sheet are arranged in the internal space of the coping.
By arranging a heater on the parapet and using the heat of the heater to melt the snow accumulated on the parapet, it is possible to suppress the formation of snow cornices on the parapet.
In addition, since the amount of snow that accumulates on the parapet is reduced by the snow cornice prevention device, the heater is operated for a shorter period of time to melt the snow, and the running cost can be reduced.

Further, in the above roof, it is preferable that the predetermined distance between the central axis of the parapet and the central axis of the strut of the snow cornice prevention device is 130 mm or more.
By setting the distance between the parapet and the cornice prevention device to 130 mm or more, it is possible to suppress the snow passing through the cornice prevention device from accumulating outside the parapet, thereby suppressing the formation of the cornice on the parapet.

According to the snow cornice prevention device of the present invention, the first mesh-like portion and the second mesh-like portion are arranged to face each other with a gap therebetween, and prevent the snow from turning into ice by passing wind through the snow piled up on the snow cornice. . In addition, when the temperature is high in the daytime, the snow cornice is warmed by the sunlight, and the snow in contact with the snow cornice can be melted, thereby suppressing the formation of the snow cornice.
In addition, since the meshes of the first mesh portion and the second mesh portion are difficult to see from the outside, even if the snow cornice prevention device is installed on the roof of the building, it is unlikely to affect the exterior design of the building.
In addition, since the meshes of the first mesh-shaped part and the meshes of the second mesh-shaped part are displaced, the snow that has passed through one mesh is caught by the other mesh, so that the snow passes through the snow cornice cut part. Efficient capture of snow.
In addition, by supporting the first mesh portion and the second mesh portion with a frame having a predetermined thickness, the distance between the principal surfaces of the first mesh portion and the second mesh portion can be maintained at a constant distance. This makes it easier for the wind to pass through and suppresses the formation of snow cornices.
In addition, by winding the mesh member around the frame to form the first mesh portion and the second mesh portion, for example, the mesh member can be easily fixed to the frame, and the snow cornice can be easily prepared. can do.
By setting the thickness of the frame to 10 mm to 90 mm, the distance between the first mesh portion and the second mesh portion is maintained at the same distance as the thickness of the frame, and the formation of snow cornices can be efficiently suppressed.
By making the mesh shape hexagonal, winds in various directions can easily pass through, snow is less likely to become ice, and the formation of snow cornices can be suppressed more effectively.
By providing the cornice prevention device in the vicinity of the parapet, for example, snow accumulated on the roof can be dammed up to prevent snow from accumulating on the parapet beyond the cornice prevention device. The amount of snow accumulated on the parapet is reduced, thereby suppressing the formation of snow cornices on the parapet.
In addition, by arranging a heater on the parapet and using the heat of the heater to melt the snow accumulated on the parapet, it is possible to suppress the formation of snow cornices on the parapet. In addition, since the amount of snow that accumulates on the parapet is reduced by the snow cornice prevention device, the heater is operated for a shorter period of time to melt the snow, and the running cost can be reduced.
By setting the distance between the parapet and the cornice prevention device to 130 mm or more, it is possible to suppress the snow passing through the cornice prevention device from accumulating outside the parapet, thereby suppressing the formation of the cornice on the parapet.

It is a perspective view showing the roof on which the snow cornice prevention device according to the present embodiment is installed. 2 is a cross-sectional view taken along line II-II of FIG. 1; FIG. 2 is a cross-sectional view taken along line III-III of FIG. 1; FIG. It is a front view which shows a snow cornice prevention apparatus. It is a figure which expands and shows a part of snow cornice cutting part (part A of FIG. 4) of a snow cornice prevention apparatus. It is a side view which shows the snow cornice cutting part of the snow cornice prevention apparatus.

An embodiment of the present invention (hereinafter referred to as the present embodiment) will be described below with reference to FIGS. 1 to 6. FIG.
The embodiments described below are merely examples for facilitating understanding of the present invention, and do not limit the present invention. That is, the shape, size, arrangement, etc. of the members described below can be changed and improved without departing from the scope of the present invention, and the present invention naturally includes equivalents thereof. Further, in the following embodiments, the same or similar constituent elements are indicated by common reference numerals, and the scales of these drawings are appropriately changed for easy understanding.

As shown in FIG. 1, a snow cornice prevention device 1 according to this embodiment is a device provided on a roof R of a building. The snow cornice prevention device 1 is arranged inside the parapets 20a and 20b provided on the periphery of the roof R along the parapets 20a and 20b. The parapet 20a is provided on the front side of the building, and the parapet 20a is attached with a top rail 21a larger than the top rail 21b of the parapet 20b.

The snow cornice prevention device 1 includes a snow cornice cutting part 10 and a strut 15 for supporting the snow cornice cutting part 10 in a standing position.
The snow cornice cutting part 10 has a first mesh part 11 , a second mesh part 12 , and a frame 14 that supports the first mesh part 11 and the second mesh part 12 . Each of the first mesh portion 11 and the second mesh portion 12 has main surfaces 11a and 2a that receive snow. The first mesh portion 11 and the second mesh portion 12 are arranged such that the principal surface 11a of the first mesh portion 11 and the principal surface 12a of the second mesh portion 12 face each other with a predetermined distance L therebetween. so that it is attached to the frame 14 (see FIGS. 2 and 3).

As shown in FIG. 5 , the first mesh portion 11 and the second mesh portion 12 are arranged on the frame 14 such that the meshes of the first mesh portion 11 and the meshes of the second mesh portion 12 are shifted from each other. can be attached to

As shown in FIGS. 1, 4, and 5, the snow cornice cutting portion 10 is composed of a mesh-like member composed of a plurality of continuous meshes. As a result, for example, when a snow-mixed wind passes through the snow cornice cut portion 10, the snow is dammed up by the mesh, and the snow piles up on each of the mesh. In other words, the mesh traps snow. Therefore, the amount of snow that accumulates on the parapets 20a and 20b is reduced, thereby suppressing the formation of snow cornices and preventing them from extending outward from the parapets 20a and 20b.

Since the amount of snow adhering to each mesh is also small, the snow cornice cutting part 10 is warmed by the sunlight during the time when the temperature is high in the daytime, and the snow adhering to the mesh of the snow cornice cutting part 10 can be melted. Generation can be effectively suppressed.

The first mesh portion 11 and the second mesh portion 12 are supported by a frame 14 having a predetermined thickness T so as to be separated from each other. The frame 14 is supported by the struts 15 so as to be in a standing position. As shown in FIGS. 2 and 3, the strut 15 is supported by mounting members 17 extending from the inner side surfaces of the parapets 20a, 20b.

The first mesh portion 11 and the second mesh portion 12 are composed of mesh members having hexagonal meshes as shown in FIGS. 4 and 5 . The first mesh portion 11 and the second mesh portion 12 are formed by winding a sheet of mesh member around the frame 14 . The meshes of the first mesh portion 11 and the meshes of the second mesh portion 12 are displaced as shown in FIG.
By displacing the meshes, for example, snow that has passed through the meshes of the second mesh-like part 12 is caught by the meshes of the first mesh-like part 11, so that the snow can be efficiently captured.

By forming the first mesh portion 11 and the second mesh portion 12 by winding one sheet of mesh member, the step of cutting the mesh member can be omitted, and the mesh member is divided and fixed to the frame 14 . can be installed more easily than if In addition, as described above, by shifting the mesh, the force of the wind is suppressed while the snow-mixed wind is allowed to pass through, and the mesh captures the snow, so that the snow accumulates on the mesh.

In the snow cornice prevention device 1 of the present embodiment, the snow cornice cutting portion 10 is formed using a mesh member having hexagonal meshes. By making the mesh shape hexagonal, it is possible to respond to various wind directions. However, this is just an example, and the shape of the mesh is not particularly limited, and may be other shapes such as squares, triangles, and circles.

The distance L between the first mesh 11 and the second mesh 12 is determined by the thickness T of the frame 14 . If the thickness T of the frame 14 is too small, the effect of cutting cornices is reduced because the wind cannot pass through. Conversely, if the thickness T of the frame 14 is too large, snow may pile up on the frame 14 . According to investigations conducted by the inventors, the thickness T of the frame 14 of the snow cornice cutting portion 10 is 10 mm to 90 mm, preferably 30 mm to 50 mm. Do you get it.

1 to 3, the snow cornice prevention device 1 is installed inside the parapets 20a and 20b of the roof R and at a predetermined distance from the parapets 20a and 20b. In this embodiment, the snow cornice prevention device 1 is arranged such that the distances D1 and D2 between the central axis of the strut 15 of the snow cornice prevention device 1 and the central axes of the parapets 20a and 20b are 130 mm or more, preferably 150 mm or more.
By disposing the snow cornice prevention device 1 inside the parapets 20a and 20b, the snow cornice prevention device 1 is difficult to see even when the roof R is viewed from the ground, and the effect on the appearance design is reduced. In addition, since the snow cornice prevention device 1 dams up the snow accumulated on the roof, the snow is prevented from extending outward from the parapet 20 .

Copings 21a and 21b are installed above the parapets 20a and 20b, and a heater 22 and a graphite sheet 23 are arranged in the internal space between the copings 21a and 21b and the upper surfaces of the parapets 20a and 20b. there is By providing the heaters 22 on the parapets 20a and 20b, the accumulated snow on the parapets 20a and 20b can be melted. Since the amount of accumulated snow on the parapets 20a and 20b is reduced by providing the snow cornice prevention device 1, the amount of snow piled up on the parapets 20a and 20b can be reduced at a lower running cost than when simply installing a heater without providing the snow cornice prevention device 1. snow can be melted. Note that if the snow cornice prevention device 1 alone can sufficiently prevent the formation of snow cornices, the heater 22 may not be provided.

In this embodiment, the snow cornice prevention device 1 has the snow cornice cutting portion 10 arranged along the parapets 20a and 20b. However, this is just an example, and the parapets 20a and 20b do not necessarily need to be arranged. The snow cornice prevention device 1 may be arranged so that the main surfaces 11a and 12a of the second mesh portion 12 face each other.

1 Snow cornice prevention device 10 Snow cornice cut portion 11 First mesh portion 11a Main surface 12 Second mesh portion 12a Main surface 14 Frame 15 Support 17 Mounting members 20a, 20b Parapets 21a, 21b Toping 22 Heater 23 Graphite sheet R Roof

Claims (8)

a snow cornice cut portion having a first mesh-like portion and a second mesh-like portion whose main surfaces face each other and are spaced apart from each other;
and a post that supports the snow cornice in a standing posture,
The snow cornice prevention, wherein the meshes of the first mesh-like portion and the meshes of the second mesh-like portion in the snow cornice cutting portion are arranged to be shifted in a direction orthogonal to a direction in which the main surfaces face each other. Device. The snow cornice cutting part has a frame having a predetermined thickness,
The first mesh portion and the second mesh portion are supported by the frame so as to be separated from each other,
2. The snow cornice prevention device according to claim 1, wherein said frame is supported in a standing position by said support. The snow cornice prevention device according to claim 2, wherein the first mesh portion and the second mesh portion are formed by winding a mesh member around the frame. 4. The snow cornice prevention device according to claim 2, wherein the thickness of the frame is set within a range of 10 mm to 90 mm. The snow cornice prevention device according to any one of claims 2 to 4, wherein each mesh shape of the first mesh portion and the second mesh portion is hexagonal. A snow cornice prevention device according to any one of claims 1 to 5 and a parapet, wherein the snow cornice prevention device is installed inside the parapet at a predetermined distance from the parapet. Characteristic roof. 7. Roof according to claim 6, characterized in that the parapet has a coping on the top, and a heater and a graphite sheet are arranged in the internal space of the coping. The roof according to claim 6 or 7, wherein the predetermined distance between the central axis of the parapet and the central axis of the strut of the snow cornice prevention device is 130 mm or more.

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