JPH0352327Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to an improvement of a roof snow prevention device.

Prior Art If a large amount of snow suddenly falls from a roof, there is a danger that people will be buried beneath it and lose their lives.Furthermore, snow falling from a large roof can impact the roof below, causing damage to the house. Therefore, roofs are generally equipped with snow protection. A snow stopper on the roof will prevent the snow from falling naturally, but during heavy snowfall, unless the snow is removed, there is a risk that the house will collapse due to the large amount of snow, and even if it does not collapse, the roof tiles will be damaged. Damage may occur, such as the roof being destroyed or structural members of the roof being broken. In addition, removing snow is a dangerous labor that involves throwing snow far away with a shovel, and if you are not used to physical labor, you are likely to suffer from lower back pain.

Thus, various roof snow prevention devices have been proposed in the past. For example, there are sprinklers installed on the roof that spray water, water that is sprayed from above the roof, nichrome wires buried in roof tiles,
These include things that melt snow using electric heat. However, with sprinklers, the water can freeze in the air during the coldest months, making it even more difficult to dispose of the water, and with sprinklers spraying water from the roof, snow tunnels can form along the recesses of the roof tiles. It just doesn't have much effect. In addition, those using electric heating have disadvantages such as consuming a large amount of electricity and being uneconomical.

In view of the shortcomings of conventional snow accumulation prevention devices, the applicant has previously developed a snow accumulation prevention device that blows snow falling on the roof below the roof using a jet of air, and has already filed an application for this device. Gansho 61-14352
No. (Japanese Patent Publication No. 174443/1983)).

This snow accumulation prevention device has a large number of ventilation pipes arranged on the roof along the slope direction, and each ventilation pipe has a
It is equipped with multiple nozzles that are tilted toward the eaves, and by using a blower to force air into each ventilation pipe, air is ejected from each nozzle with force all at once. If you run the blower from above, the snow will be blown below the roof before it accumulates on the roof, which will not only prevent snow from accumulating on the roof, but the air ejected from the nozzle will also prevent the following types of ice formation: By adjusting the installation density of ventilation pipes and nozzles, the blowing capacity of the blower, etc., a reliable snow accumulation prevention effect can be achieved without causing any problems or consuming a large amount of energy like snow melting using electric heat. This is something to look forward to.

Purpose of the invention The purpose of this invention is to further develop such a snow accumulation prevention device using air jet flow, and by improving the sliding of snow on the roof, relatively weak pressure from the nozzle is required. To provide a roof snow prevention device which can efficiently discharge snow under the roof even when air is blown out, which allows the use of a small-capacity blower and which can be operated more economically. be.

Structure of the invention The structure of this invention to achieve the above purpose includes a plurality of wide snow-removal gutters arranged along the slope of the roof, and a blower blowing air into the snow-removal gutters. The snow that has fallen into the snow removal gutter is removed by directing the nozzle toward the tip of the snow removal gutter so that air can flow toward the tip of the snow removal gutter. The snow slides smoothly down the bottom of the snow gutter using the air flow emitted from the nozzle, so there is almost no snow accumulation on the snow gutter, and even if snow does accumulate, it is only a thin layer before it becomes compacted. The gist of this is that it is made to slide down in snowy conditions.

Example Examples will be described below with reference to the drawings.

The roof snow prevention device includes a plurality of snow removal gutters 10,
10..., and a ventilation pipe 12 with nozzles 11, 11... arranged one pair on the left and right for each snow removal gutter 10,
It consists of a blower 16 that forces air into the ventilation pipe 12 via a manifold 14 (FIG. 1).

The snow removal gutter 10 is a shallow gutter similar to the shape of a plate, and its cross section has a gutter-like shape as a whole by providing warped walls 10a and 10b which are curved at both ends and become higher in sequence. Figure 2). and,
At the tip of one warped wall 10a, a female joint part 10c that is reversed downward in a "U" shape is attached to the other warped wall 10a.
A male coupling portion 10d that is reversed upward in the shape of a “he” is formed at the tip of each of the portions 0b.

The ventilation pipe 12 has a fitting hole 1 for the nozzle 11 on one side.
2a, 12b... are bored at equal intervals, and a cap 12b is fitted to the tip (Fig. 1, Fig. 4).
figure). The fitting hole 12a is inclined toward the distal end of the ventilation pipe 12 and is opened slightly diagonally downward, and the nozzle 11 is attached along the opening direction (Figs. 3 and 4). ). In the snow removal gutter 10,
The ventilation pipes 12, 12 configured in this way are connected to the upper ends of both warped walls 10a, 10b using wires 12c, 12.
c..., and the nozzles 11, 11...
The air flow from the snow removal gutter 10 is blown so as to rub against the bottom surface of the snow removal gutter 10.

The manifold 14 is formed by connecting a large number of units 15, 15, . . . in series, with connecting pipes 14b, 14b with flanges 14a connected to both ends of a joint 14c to which the ventilation pipe 12 is attached, forming one unit 15. (Figure 1). Manifold 1
At the base end of 4, a blower hose 18 from the blower 16 is connected.
A connecting pipe 15b for attaching the is attached, but the tip (not shown) is hermetically sealed. Joint 1 of unit 15 in the middle of manifold 14
4c is for attaching two ventilation pipes 12,
Although the joint 14c of the unit 15 at both ends of the manifold 14 is T-shaped, it has only one connection port 14d. Adjacent unit 15,1
5 is connected by flanges 14a, 14a.

Snow removal gutter 10, ventilation pipe 12 and manifold 1
Each of the 4 members is made of plastic material to reduce the overall weight.

When installing the roof snow prevention device, the snow removal gutters 10, 10... are laid out side by side on the roof, and the female and male coupling parts 10c, 10d are hooked to each other to connect the adjacent snow removal gutters 10, 10, Each snow removal gutter 10, 10... is fixed to the roof by any method such as tightening with wire.

The ventilation pipes 12, 12 can be attached to both ends of each snow-removal gutter 10, 10... regardless of whether or not the snow-removal gutter 10, 10... is installed on the roof. Manifold 1
4, each unit 15, 15... is connected to its connection port 1.
It is preferable to connect the adjacent units 15, 15 after inserting the ventilation pipes 12, 12, . . . into the holes 4d, 14d, .

The blower 16 may be installed indoors or outdoors, but if it can blow exhaust heat from indoor heating, the snow melting effect can be easily obtained by the exhaust heat, and the snow melting water can improve the sliding of snow. You can also do that. The switch for starting and stopping the blower 16 is
Place it indoors in a location that is easy to operate.

When the blower 16 starts operating, the nozzles 11,
Air blows out from 11..., and inside the snow removal gutter 10,
A flow of air is generated toward the tip.

When the quality of the snowfall is light, the snow descends along with the air flow in the snow removal gutter 10 and is discharged from the tip thereof, so that almost no snow is accumulated in the snow removal gutter 10. Conversely, when the quality of the snowfall is heavy, snow will accumulate in the snow removal gutter 10, but as the amount of snow increases, the weight of the snow will make the snow removal gutter 10 more likely to slip due to its slope. in the sliding direction,
Due to the force of the airflow ejected from the nozzles 11, 11, .

In this way, the energy of the air ejected from the nozzle 11 not only works effectively within the snow removal gutter 10, but also provides an opportunity for the snow on the slippery snow removal gutter 10 to slide down, causing the snow to fall below the roof. Compared to the case where the air is blown away, the capacity of the blower 16 needs to be much smaller.

Thus, by operating the blower 16 from the beginning of snowfall, a large amount of snow can be prevented from accumulating. However, even if a considerable amount of snow accumulates on the snow removal gutter 10 because the blower 16 is not operated, if the blower 16 is subsequently operated and the air ejected from the nozzles 11, 11... is heated to a temperature higher than 0°C. If the snow is falling from snow removal gutter 1
Since the snow melts at the contact surface with the snow melting water and serves as a lubricant, the snow on the snow removal gutter 10 easily slides down. Therefore, by simply operating the blower 16, a large amount of snow can be removed at once.

In this way, almost all the snow on the snow removal gutter 10 can be removed, so it is not necessarily necessary to provide the snow removal gutter 10 over the entire length of the roof in the slope direction. Even if it is installed only in the lower half or the eaves, it can significantly reduce the burden on the roof during snowfall.
Its damage can be prevented. At this time,
Some of the snow that has fallen above the snow removal gutter 10 is also absorbed by the airflow ejected from the nozzles 11, 11... and is discharged from the eaves along the snow removal gutter 10, so that the snow is removed from the snow removal gutter. The amount of snow on the upstream side of the roof where the roof is not covered can also be significantly reduced.

Another Embodiment The snow removal gutter 10 and the ventilation pipe 12 may be formed integrally (FIGS. 5 and 6). The ventilation pipe 12 is provided only at one end of the snow removal gutter 10, and the nozzle 1 is provided on both sides thereof.
1, 11, . . . , so that air is also blown out to the adjacent snow removal gutter 10. When the snow removal gutter 10 and the ventilation pipe 12 are integrally formed, the installation of the snow prevention device on the roof is easier because the trouble of installing the ventilation pipe 12 can be saved.

Note that the nozzles 11, 11... are connected to the ventilation pipe 12.
It is also possible to simply form a small hole diagonally.
In that case, the structure becomes simple, and since accumulated snow does not get caught on the nozzle 11, the snow removal gutter 10
This does not prevent the snow on the top from sliding, and there is no risk of the nozzle 11 being damaged thereby. On the other hand, as described above, if the nozzle 11 is fitted into the fitting hole 12a and is made detachable as needed, there is an advantage that it is easy to clean when the nozzle becomes clogged.

Effects of the invention As explained above, according to this invention, a plurality of wide snow drainage gutters are installed on the roof along the slope of the roof, and air is ejected from the nozzles to clean the inside of the snow drainage gutters. By creating a flow of air toward the tip of the nozzle, even if the air jetting force from the nozzle is weak, light snow can be blown away under the roof during snowfall. , heavy snow, or snow accumulated in the snow gutter can be efficiently slid down to the roof and discharged, so a small-capacity blower is sufficient, making it even more efficient. It has the advantage of being economical to operate.

[Brief explanation of the drawing]

Embodiments are shown in Figures 1 to 4. Figure 1 is an overall perspective view showing how it is installed on the roof, Figure 2 is a cross-sectional view of the snow removal gutter, and Figure 3 is A--A in Figure 1. FIG. 4 is an enlarged cross-sectional view taken along the line A and a vertical cross-sectional view of the ventilation pipe. FIGS. 5 and 6 show another embodiment, with FIG. 5 being a cross-sectional view of the snow removal gutter, and FIG. 6 being a perspective view of the main part showing how it is attached to the roof. 10...Snow removal gutter, 10c...Female joint part, 10d
...male coupling part, 11 ... nozzle, 12 ... ventilation pipe, 14 ... manifold, 16 ... blower.

Claims (1)

[Claims for Utility Model Registration] 1. A snow removal gutter comprising a plurality of wide snow evacuation gutters arranged on the roof along the slope of the roof, and a nozzle for blowing air from a blower into the snow evacuation gutter; A snow accumulation prevention device for a roof, characterized in that the nozzle is oriented toward the tip of the snow removal gutter so that air flows toward the tip within the snow gutter. 2. Utility model registration claim 1, characterized in that a female coupling part is provided at one end of the snow removal gutter, and a male coupling part that can be hooked to the female coupling part is provided at the other end.
Roof snow prevention device as described in section. 3. A utility model according to claim 1 or 2, characterized in that a ventilation pipe from a manifold is provided at a side end of the snow removal gutter, and the nozzles are arranged in a row in the ventilation pipe. Roof snow prevention device. 4. The roof snow accumulation prevention device according to claim 3, wherein the ventilation pipe is formed integrally with the snow drainage gutter.