JPH0344609B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a snow melting device for a roof in a building structure, and more specifically, to a snow melting device for a roof used by being attached to a snow prevention member provided above a roof plate. This relates to snow melting equipment.

[Conventional technology]

In the case of architectural structures in snowy countries, it is necessary to quickly remove snow on the roof during the winter. By using indoor heating, the roof surface is heated from the inside, melting the contact surface of the snow, and causing the snow to slide down along the roof slope toward the eaves.

However, with this method, the heating heat does not reach the eaves, so the moved snow may freeze at the eaves and form a bank, and this bank-like part blocks the flow of melted snow water. By acting as a reservoir for water and causing it to flow back toward the ridge, water leaks to the inside of the roof surface, a so-called "suga leak."

Therefore, there was a snow melting device that prevents "sugar leakage" as shown in Japanese Utility Model Publication No. 58-56269.
In this snow melting device, a large number of small flake-shaped snow stoppers are fixed to a roof board so that they protrude above the roof board, and a heat generating member is fixed to the snow stopper, and a large number of heat generating members are attached to the eaves side of the roof. There was one in which the roof panels were placed on the surface of the roof panels at predetermined intervals laterally along the slope of the roof.

In addition, it was used as a snow melting device for roofs.
As shown in Publication No. 10764, a large number of heat-generating members are insulated and wrapped in a metal cover plate, and the tips of these eaves are fixed to the tips of the eaves of a roof board using mounting fittings. There was also a roof plate that was placed on the back side of the eaves in the same way as the conventional one.

[Problem that the invention seeks to solve]

However, among conventional roof snow melting devices, the snow melting device described above has a snow stopper fixed to the roof board, so the snow stopper is large in both vertical and lateral dimensions. If the heat generated by the heat-generating member melts the snow on the roof panels in close proximity to them, there is a risk that the large snow mass will not be able to withstand the weight of the large snow mass trying to slide down the slope of the roof. For this reason, it is necessary to make the snow stoppers small; if the number of snow stoppers is too large, the installation of the snow stoppers becomes troublesome and impossible, and there is a risk that large chunks of snow may fall from the eaves. Further, since there are a large number of small pieces of snow stopper fittings, it is troublesome to attach and detach the heat generating members to and from them, and there is a problem in that there is little freedom in changing the position and spacing of the heat generating members.

The latter snow melting device does not have snow stopping parts such as snow stoppers, so when the snow near the roof shingles is melted by the heat generating member, large chunks of snow will fall even further than the former snow melting device. Moreover, since the heat generating member is attached to the back side of the roof board, it is more troublesome to attach and remove the heat generating member, and to change the position and spacing compared to the former snow melting device.

This invention solves the above-mentioned problems with conventional snow melting devices, and even if the snow near the roof shingles is melted by the heat-generating member, it can reliably prevent large snowflakes from falling from the eaves. In addition, it is easy to attach and detach heat generating members, and change the position and spacing.
It is an object of the present invention to provide a snow melting device for a roof that has a large degree of freedom in making these changes.

[Means for solving problems]

In the roof snow melting device according to the present invention, a heating element that generates heat when energized is appropriately insulated and wrapped around a cover plate made of a thin steel plate, and a heat generating member of a predetermined length has a mounting portion formed in a part of the cover plate. and a snow stopper bar fixed on a bracket raised up from the inside of the roof structure through the roof plate, and arranged horizontally above the roof plate at multiple locations in the vertical direction of the eaves side of the roof, The mounting portion of the heat generating member is fixed to the snow stopper bar, the tip of the heat generating member is placed at the eaves of the roof, and a number of heat generating members are installed laterally along the roof slope between the snow stopper bar and the roof surface. They are arranged at the required intervals.

[Effect]

In the roof snow melting device according to the present invention, the brackets are erected from the inside of the roof structure through the roof sheets, so these brackets are fixed to members with high strength and rigidity, such as rafters, and the tips of the plurality of brackets are By fixing the snow stopper bar, a long snow stopper bar that runs along the horizontal direction of the roof can be fixed.
It can be made strong enough to withstand the weight of snow on the roof board, and the mounting portion of the heat generating member can be securely fixed to the snow stopper bar. For this reason, the heat generated by the heat-generating elements melts the snow on the roof shingles in close proximity to them, and reliably prevents the snow supported by the snow stopper bars from falling in large chunks from the eaves. can.

Further, the roof snow melting device according to the present invention includes a snow stopper bar arranged horizontally above the roof plate,
Since the snow stopper bar is long and the attachment part of the heat generating member is fixed to it, there are fewer snow stopper bars compared to the snow stopper fittings, and if necessary, the snow stopper bar can be adjusted in the longitudinal direction of the snow stopper bar as appropriate. The heat generating member can be easily attached to and removed from the position, and the position and interval of the heat generating member can be changed as appropriate, and there is a great degree of freedom in making these changes.

〔Example〕

Hereinafter, one embodiment of the roof snow melting device according to the present invention will be described in detail with reference to FIGS. 1 to 8.

First, FIGS. 1 and 2 are an overall perspective view of a building structure equipped with a snow melting device according to an embodiment of the present invention, and a main part configuration diagram showing an outline of the same horizontal roof, and FIG. An enlarged detailed sectional view of the part indicated by the - line in the figure, Figure 4 is a perspective view with the main parts cut away showing the snow melting device section as above, Figures 5 and 6 are a front view of the heating element as above and the connection mode thereof. FIGS. 7 and 8 are perspective views showing different examples of the above-mentioned fixing fittings.

In Figures 1 to 3, architectural structure 1
has a general gable-type horizontal roof structure 2.

As is well known, the horizontal roof structure 2 has a plurality of rafters 6 fixed at predetermined intervals along the roof slope via each purlin material 5 on the structure frame 4, and each rafter 6 is fixed at predetermined intervals. It is constructed by having horizontal roofing boards 7 placed on top.

In order to improve the load bearing of the roof assemblies, the snow prevention structure 3 is constructed by passing horizontal roofing plates 7 over each rafter 6 and attaching brackets 8 to the corresponding parts of the purlin materials 5 on the eave sides of the roof. The proximal ends of the brackets 8 are fixed by welding, and a plurality of long snow stopper bars 9 made of angle members and extending in the horizontal direction are placed at intervals in the vertical direction on the tip of each of these raised brackets 8. Fixed and configured.

Further, in the snow melting device 11 according to this embodiment, as shown in FIGS. 4 to 6, a heat generating member 12 having a predetermined length is used, and this heat generating member 12 is
The fixing fittings 16 or 17 shown in FIG. Attach them at intervals.

Furthermore, the heat generating member 12 is arranged with its tip bent downward at the eaves of the roof, and is arranged between the snow stopper bar 9 and the surface of the roof board 7 on the eaves side of the roof.

The heat generating member 12 is a heat generating element 13 formed by cutting a continuous sheet-like heat generating zone of a predetermined width into a predetermined length, for example, a strip shape of about 40 mm x 900 mm, and as required. Accordingly, in order to improve the current distribution, conductive parts 13a, 13 are provided at both ends.
It has a plurality of heating elements 13 having a shape of 1.a, the periphery of each heating element 13 is suitably insulated and connected in the longitudinal direction, and conductive wires 14, 1 are arranged along one side of the heating elements 13.
4, each of the heating elements 13 including the conductive wires 14, 14 is connected in parallel with the conductive parts 13a, 13a, and a mounting part 15a is formed in a part by a cover plate 15 made of a thin steel plate. The outer cross-section of the envelope is an inverted T-shape. Further, as the fixing fitting 16 or 17, since the heat generating member 12 is disposed orthogonally to the snow stopper bar 9,
In the case of one fixture 16, the steel plate is twisted, and in the case of the other fixture 17, the steel wire is twisted 90 degrees.
Attachment parts 16a, 16b or 17a at both ends,
17b is formed, and each of these mounting portions 1
6a, 16b or 17a, 17b are attached and fixed to the snow stopper bar 9 and the attachment portion 15a of the heat generating member 12 using mounting bolts and nuts 18a, 18b. The eaves side tip 12a is bent downward.

Therefore, in this embodiment, the snow that is stopped by the snow stopper bar 9 on the roof board 7 due to indoor heating forms a bank-like frozen part S, as in the conventional case, but the roof slope By energizing and heating the respective heat generating members 12 arranged at appropriate intervals along the side of the eaves, the total calorific value of these members directly contributes to the snow melting action and effective snow melting can be achieved, as shown in Fig. 3. As shown in FIG. 2, there is a snow cave-shaped space 1 in the periphery of the heat generating member 12 that penetrates at least toward the eaves side.
9 is formed, and the snowmelt water W stored in the frozen part S can be easily drained out to the eaves side,
Also, regarding icicles that form on the eaves,
The presence of the eaves-side tip 12a of the heat-generating member 12 allows for easy removal.

In this embodiment, each of the heat generating members 12
Since the heating element 13 is wrapped in the cover plate 15 made of a thin steel plate, each part of the cover plate 15 is heated almost evenly, so that the snow cave-like space 19 is quickly formed and the surrounding environment is The heating element 13 itself is reliably protected against
In addition, since the mounting portion 15a is formed upright on the vertical upper part of the cover plate 15 over the entire length of the heat generating member 12 in the longitudinal direction, the heat generating member 12 can be attached to the snow stopper structure 3 very easily.

In the case of this embodiment, conductive parts 13a, 13a are formed at both ends of the heating element 13, and the conductive wires 14, 14 are connected via the conductive parts 13a, 13a. Part 13a, 1
It may be directly connected to both ends of the heating element 13 without using the heating element 3a.

FIG. 9 shows another embodiment of the invention. This embodiment consists of two roof structures 2, as shown in FIG.
The snow melting device 11 is installed not only at both eaves sides of each roof structure 2 but also at the bottom of the central groove 2a. To prevent refreezing of melted snow water flowing down into a central groove part 2a.

Note that the roof snow melting device according to the present invention can be applied to other than horizontal roofs.

〔Effect of the invention〕

As explained above, the roof snow melting device according to the present invention includes a heating element that generates heat when energized is appropriately insulated and wrapped in a thin steel cover plate, and a mounting portion is formed in a part of the cover plate. A heat-generating member of a predetermined length is fixed on a bracket raised from the inside of the roof structure through a roof plate, and snow is placed horizontally above the roof plate at multiple locations vertically on the side of the eaves of the roof. a stop bar, the attachment part of the heat generating member is fixed to the snow stopper bar, the tip of the heat generating member is arranged at the eave of the roof, and a number of heat generating members are attached along the slope of the roof to the snow stopper bar and the roof surface. Since it is arranged with a required interval in the lateral direction between the two, the following effects can be obtained.

That is, the roof snow melting device according to the present invention is
Since the brackets are erected from the inside of the roof structure through the roof plates, these brackets are fixed to members with high strength and rigidity, such as rafters, and snow bars are fixed to the tips of the multiple brackets. The elongated snow stopper bar extending in the lateral direction of the roof can be made strong enough to withstand the weight of snow on the roof board, and the attachment part of the heat generating member can be securely fixed to the snow stopper bar.
For this reason, the heat generated by the heat-generating elements melts the snow on the roof shingles in close proximity to them, and reliably prevents the snow supported by the snow stopper bars from falling in large chunks from the eaves. can.

Further, the roof snow melting device according to the present invention includes a snow stopper bar arranged horizontally above the roof plate,
Since the snow stopper bar is long and the attachment part of the heat generating member is fixed to it, there are fewer snow stopper bars compared to the snow stopper fittings, and if necessary, the snow stopper bar can be adjusted in the longitudinal direction of the snow stopper bar as appropriate. The heat generating member can be easily attached to and removed from the position, and the position and interval of the heat generating member can be changed as appropriate, and there is a great degree of freedom in making these changes. Therefore,
It can be easily applied not only to newly constructed building structures but also to existing building structures that only have a bracket and a snow bar by fixing the mounting part of the heat generating member to the snow bar. Repair work can be easily performed in case of damage.

[Brief explanation of drawings]

FIGS. 1 and 2 are an overall perspective view of a building structure equipped with an embodiment of the snow melting device according to the present invention, and a main part configuration diagram showing an outline of the horizontal thatched roof,
Figure 3 is an enlarged sectional view of the - line part in Figure 1;
The figure is a cut-away perspective view of the snow melting device shown above, Figures 5 and 6 are front views of the heating element and an explanatory diagram of the connection mode, and Figures 7 and 8 are fixed views of the same as above. FIG. 9 is a perspective view showing different examples of metal fittings, and a schematic explanatory view showing another example of a building structure equipped with a snow melting device according to the present invention. 1... Building structure, 2... Horizontal roof structure of building structure, 3... Snow prevention structure, 4... Structure frame, 5... Purlin material, 6... Rafters, 7... Horizontal roof structure. Board, 8... Bracket, 9... Snow stopper bar, 1
DESCRIPTION OF SYMBOLS 1... Snow melting device, 12... Heat generating member, 13... Heat generating element, 13a, 13a... Conductive part of heat generating member, 1
4...Conductive wire, 15...Cover plate, 15a...Cover plate attachment part, 16, 17...Fixing metal fittings, 1
8a, 18b...Mounting bolts and nuts.

Claims (1)

[Scope of Claims] 1. A heat generating member of a predetermined length, in which a heat generating element that generates heat when energized is appropriately insulated and wrapped by a thin steel cover plate, and a mounting portion is formed in a part of the cover plate; and a snow stopper bar fixed on a bracket raised from the inside of the roof structure through the roof plate, and disposed horizontally above the roof plate at multiple locations in the vertical direction of the eaves side of the roof, fixing the attachment part of the member to the snow stopper bar, placing the tip of the heat generating member at the eaves of the roof;
A snow melting device for a roof, further comprising a plurality of heat generating members disposed along the slope of the roof at required intervals in the lateral direction between the snow stopping bar and the roof surface. 2. Claim 1, characterized in that the heating element has conductive parts connected to the conductive wire formed at both ends thereof.
Roof snow melting equipment as described in section. 3. The roof according to claim 1 or 2, characterized in that the heat generating member has an inverted T-shaped external cross section, and has a vertical upper part serving as an attachment part over the entire length. Snow melting equipment. 4. The roof snow melting device according to claim 1, 2 or 3, wherein the bracket has a base end fixed on a rafter and a snow stopper bar fixed to a tip end. .