JPS6118108Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a snow melting device for a folded plate roof, and more particularly to a snow melting device for a folded plate roof, in which a heat generator can be easily attached to the folded plate roof and has a large snow melting effect.

The conventional snow melting device for folded plate roofs was developed in 1987-39875.
As described in the above publication, a sheet heating element was disposed along the back surface of the folded plate roof, and a heat insulating material was further placed on the back surface of the sheet heating element.

However, such a snow melting device for a folded-plate roof has the disadvantage that the roof plate must be removed when it is installed, and the installation work is also extremely troublesome. Moreover, it has the disadvantage that once it is attached, it cannot be easily removed.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an excellent snow melting device for folded plate roofs that can be easily installed and removed from folded plate roofs with simple operations and has a large snow melting effect.

The snow melting device for a folded plate roof of the present invention, which achieves the above-mentioned object, comprises a folded plate roof and a mountain-shaped plate heater fixed onto the roof, the plate heater having a planar heating element placed on insulation material and entirely covered with fiber reinforced plastic, the plate heater being abutted against the sloped surfaces and peaks of the folded plate roof while forming a space between the valleys of the plate heater and the valleys of the folded plate roof, and snow guard material being fixed onto the plate heater.

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

FIG. 1 shows a plate-shaped heat generator 1 which is the main component of the snow melting device for a folded-plate roof according to the present invention. In this embodiment, this plate-shaped heating device 1 is constructed by connecting four planar heating devices 2 to a heat insulating material 3.
Place it on top of the roof, wrap it entirely with fiber-reinforced plastic (FRP) 4, and bend or form it into a chevron shape, roughly following the shape of the folded plate roof, as shown in Figure 1B. It is configured as follows.

The above-mentioned sheet heating element 2 is made by mixing fine powder of semiconductive material such as carbon into an electrically insulating material such as synthetic resin to make the heating material 2b conductive, and applying current to the heating material 2b through two electrodes 2a to cover the entire surface. These electrodes 2
a are gathered in one place at the edge 1a of the plate-shaped heat generating device 1, and are connected to a power source 5. Figure 2 is Figure 1
- This is a partial cross-sectional view along the X-ray line, showing the structure of the plate-shaped heat generator 1 described above. Further, reference numeral 1e indicates a mounting hole provided in the peak portion 1b of the plate-shaped heat generator 1.

FIG. 3 shows the plate-shaped heating device 1 constructed as described above.
FIG. 2 is an assembled perspective view of the snow melting device for folded plate roofs of the present invention using the present invention. In this embodiment, a folded plate roof 6 is attached to a tight frame 8 which is welded to a beam 7 with a tension bolt 9.
is mounted and fixed, and the plate-shaped heating element 1 is placed and fixed on the folded plate roof 6 using the tensioning bolts 9. In other words, the tensioning bolt 9 with the nut removed
Insert the mounting hole 1c of the plate-shaped heat generator 1 into the mounting hole 1c of the plate-shaped heat generator 1, and then attach a snow-preventing material such as an L-shaped angle 10 to the top of the mounting hole 1c.
The tension bolts 9 are inserted into the mounting holes 10a, and the nuts 11 are screwed onto the tension bolts 9 to tighten them. In this way, the snow melting device of the present invention can be easily installed on a folded-plate roof later.

Note that if the tension bolt 9 is short, the fourth,
A distance collar 12, a distance bolt 13, or the like having female threaded portions 12a, 13a as shown in FIG. 5 may be used.

FIG. 6 is a partial sectional view of the plate-shaped heat generator 1 of the present invention attached to the folded plate roof 6 as shown in FIG.
In the present invention, when forming the plate-like heat generator 1 into a chevron shape, the plate-like heat generator 1 is made to follow the peaks 6a of the folded plate roof 6, and the plate-like heat generator 1 does not reach the valleys 6a. A space 14 is provided to form a flow path for snow that melts and becomes water.

As described above, according to the present invention, since a space is formed between the valleys of the plate-shaped heat generator and the valleys of the folded-plate roof, when the plate-shaped heat generator is installed on the folded-plate roof, In addition, the dimensional error of the plate-shaped heater can be absorbed by this space, making the construction easier.

That is, by utilizing this space and pressing the valley portions of the plate-shaped heat generator when installing the plate-shaped heat generator, it is possible to easily absorb the dimensional error of the plate-shaped heat generator.

The mountain-shaped plate-shaped heat generating device can be brought into complete contact with the slope and the mountain portion of the folded plate roof.

As the area of the plate heating element increases,
It becomes difficult to form the folded plate roof accurately into a mountain shape to match the shape of the folded plate roof.

Therefore, if there is no space as in the present invention and the mountain-shaped plate heating element is brought into contact with the entire surface of the folded plate roof, the dimensional error of the plate heating element cannot be absorbed. , it becomes difficult to install the plate-shaped heating element, and it is impossible to avoid the generation of sagging parts that do not contact the folded plate roof.

If this sagging part of the plate-shaped heating element is present in the plate-shaped heating element, if there is a large amount of snowfall, the load of the snowfall will be applied to this sagging part, leading to damage to the plate-shaped heating element. .

In the present invention, since the mountain-shaped plate-shaped heating element can be brought into complete contact with the folded-plate roof, the weight of snowfall can be supported by the folded-plate roof, and damage to the plate-shaped heating element can be prevented.

Further, in the present invention, the above space can be used as a flow path for snowmelt water.

When it is difficult to manufacture a plate-shaped heat generator with an area corresponding to the entire roof area, a plurality of plate-shaped heat generators are used in combination.

In this case, if a space is provided between the plate-shaped heaters, snowmelt water can flow from this space through the space.

This eliminates the need to attach the plate-shaped heat generator to the entire surface of the roof, which is also advantageous in terms of construction.

Since the snowmelt water flowing through the space is heated from above by the plate-shaped heating element, freezing can be prevented.

Further, according to the present invention, since the mountain-shaped plate-shaped heating element is attached on the folded plate roof, it can be easily attached to an existing folded plate roof later.

Furthermore, the plate-shaped heat generator can be easily removed outside of the winter season.

This is effective in preventing deterioration of the plate-shaped heating element due to ultraviolet rays, especially in the summer.

Furthermore, in this invention, since the mountain-shaped plate-shaped heating element is attached to the folded plate roof, snow melting occurs on the entire surface of the heating element, and as the snow melts, the accumulated snow sinks under its own weight, and the snow melting continues to proceed smoothly. do.

Therefore, a cavity is formed by snow melting, and subsequent snow melting does not become difficult, and it can be suitably used even in areas with heavy snowfall.

It should be noted that various effective shapes of the angle, which is a snow-stopping material, can be considered in addition to the above-mentioned ones.
Angle 15 having 5a is also one of them.

In addition to the above-mentioned angles, various other snow prevention materials can be considered, such as the C-shaped channel steel 16 shown in Fig. 8 and the wood 17 shown in Fig. 9.
etc. can also be used.

[Brief explanation of the drawing]

Figures 1A and B are a partially cutaway plan view and front view of a snow melting device for a folded roof showing an embodiment of the present invention, and Figure 2 is a portion of the snow melting device of the present invention taken along line X-X in Figure 1. A cross-sectional view, FIG. 3 is a perspective explanatory view showing how to attach the snow melting device of the present invention to a folded-plate roof, and FIGS. 4 and 5 are angle fastening distances used when the fastening bolts of a folded-plate roof are short. A perspective view of the collar and the distance bolt, FIG. 6 is a partial sectional view showing the snow melting device of the present invention installed on a folded plate roof, and FIG. 7 is a perspective view showing a modified embodiment of the snow stopper angle of the present invention. , FIG. 8 and FIG. 9 are perspective views showing other embodiments of the snow protection material of the present invention. 1... Plate heating device, 2... Planar heating device, 3...
Insulation material, 4...Fiber-reinforced plastic, 6...Folded plate roof, 7...Beam, 9...Tension bolt, 10,1
5... Angle, 14... Space.

Claims (1)

[Scope of utility model registration request] It consists of a folded plate roof and a mountain-shaped plate-shaped heating element fixed on the roof.The plate-shaped heating element has a sheet heating element placed on a heat insulating material and is entirely covered with fiber-reinforced plastic. , while forming a space between the valleys of the plate-shaped heat generator and the valleys of the folded-plate roof, the plate-shaped heat generator is brought into contact with the slopes and peaks of the folded-plate roof; A snow melting device for a folded plate roof, characterized in that a snow blocking material is fixed on a shaped heating element.