JPH0150745B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a net roof for snow melting, and more specifically, to a snow melting net roof that can efficiently melt and remove snow accumulated on the eaves of a roof using a small heat source. Regarding mesh roofs.

(Prior Art) Various types of snow-melting roofs have been proposed and implemented, and one type is one in which heat is supplied from the roof side to the snow on the roof to melt the snow and cause it to flow down.

Ideally, snow on a roof should be melted by heat and flow down sequentially from the roof side, but in reality, the melted water is sucked up by capillary action, forming a water layer near the roof and a mixed layer of water and snow. , a layer of snow often forms.

In extreme cases, part of the mixed layer of water and snow may become a layer of ice.

As you get closer to the bottom of the roof, the layer of mixed water and snow and the layer of ice increase, and in many cases, they form a dam, inhibiting smooth snow melting, and increasing the burden on the building. There is.

(Objective of the Invention) An object of the present invention is to provide a net roof for snow melting that can effectively melt snow with less energy using an idea completely different from conventional methods.

(Structure and operation of the invention) In order to achieve the above object, the snow melting mesh roof according to the present invention heats the air between the mesh surface and the roof surface, which are arranged at a distance from the roof surface. A net roof for melting snow configured with a heat radiation source includes a frame in the form of a quadrilateral frame, a net surface stretched over the top surface of the frame, and a screen surface provided perpendicularly to the mesh surface on the side for fixing the frame. It consists of fastening fittings.

According to the above structure, snow on the mesh surface is melted by the heated air between the roof surface and the mesh surface, and moisture is converted into droplets from the mesh onto the roof surface and smoothly flows down the roof surface.

On the other hand, as long as the temperature is not below freezing, the surface of the snow will be melted by the outside air, but this moisture will also drip onto the roof surface and flow smoothly down the roof surface.

What is noteworthy is that the snow on the mesh surface surrounds the air space formed between the mesh surface and the roof, preventing the heat in the air space from dissipating into the atmosphere, and effectively using the heat in the air space for snow melting. The purpose of this is to make it available for use. Since the mesh surface is provided on the upper surface of the frame, an appropriate air gap can be secured depending on the thickness of the frame.

Further, since the frame is configured with fastening fittings perpendicular to the mesh surface for fixing the frame to the roof on the upper side of the frame, it is possible to attach the frame using the fastening fittings.

By making the frame into a unit,
It can accommodate roofs of various areas.

(Example) Hereinafter, an example of the snow melting mesh roof according to the present invention will be described with reference to FIGS. 1 to 5.

FIG. 1 shows a cross-sectional configuration of a roof eave portion to which the present invention is applied. A net 7 stretched over a frame 5 is provided above the roof panel 1 so as to be parallel to the roof panel 1.

In the space formed between the net 7 and the roof plate 1, an air pipe 8 having a hot air outlet 8a is arranged.

FIGS. 2 and 3 are diagrams showing details of how the frame 5, on which the net 7 is stretched, is attached to the roof board.

Metal roof plates 1, 1 are fixed to the upper surface of the roof structure material A.

Both ends 1a, 1a of the roof board 1 are raised vertically, and their upper ends are bent back as shown in 1b, 1b, respectively.

The roof panels 1 are connected using hangers 2 through a side-by-side configuration with minor problems, as shown in FIG. An air pipe 8 having a plurality of air outlets 8a, 8a, . Then, the analysis section 1b, 1
A groove-shaped threaded hanger 2 with both upper ends 2a, 2a extending outward is provided so as to cover the upper part b from above. In addition, two engaging members 3, 3 having an L-shaped cross section that engage the bottom parts 3b, 3b are inserted into the groove bottom surface 2b of the threaded hanger 2, and are passed through the back parts 3a, 3a back to back, and stand upright on the bottom part of the hanger 2. It is set up to do so. The bottom parts 3b, 3b of the engaging member are connected to the bottom surface 2b of the hanger groove part.
It is fixed with screws 4. Bolt tightening holes 3c, 3c for fixing the frame 5 are provided in the upper portions of these two engaging members 3, 3.

As shown in detail in FIGS. 4 and 5, the frame 5 is an aluminum frame with a shallow box-like overall shape and an open top and bottom. The inner surface of this frame 5 includes a plurality of reinforcing ribs 5a,
5a, 5a are hung horizontally, and a stainless steel net 7 is stretched over the entire open upper surface of the frame so as to be held between the frame bodies around the four circumferences of the frame and the ribs 5a.
The frame 5 is manufactured to have appropriate dimensions for convenient transportation and construction, and is made to cover the roof surface with a plurality of frames.

L-shaped fasteners 6 for engaging these frames with the engaging member 3 and fixing them to the roof;
6, 6, 6 are fixed to the four corners of the upper surface of the frame. The L-shaped fastening fittings 6, 6, 6, 6 include
Bolt tightening holes 6a, 6a, 6a, 6a, respectively
are provided, and the fastening fittings 6, 6 of the two frames 5, 5 are fixed by bolts (not shown) through the holes 6a and 3c so as to sandwich the engaging member 3 from both sides.

Hereinafter, the operation of the snow-melting mesh roof constructed as described above will be explained.

As shown in FIG. 1, the hot air sent from the hot air supply device (not shown) to the roof through the air pipe 8
Air outlet 8 installed at the bottom of the air pipe at the eaves
Hot air is released from a, 8a, . . . 8a into the space between the upper surface of the roof board 1 and the lower surface of the screen 7. The emitted hot air rises toward the ridge along the lower surface of the net 7 while melting the snow accumulated on the upper surface of the net, and is discharged into the atmosphere from an exhaust port (not shown) provided in the ridge as necessary. be done. During this process, the melted snow becomes water droplets that drip onto the upper surface of the roof board 1 through the mesh and flow down to the eaves due to the roof slope. Since the eaves are kept above a certain temperature by warm air, running water flows out from the roof in liquid form without freezing on the eaves.

In this example, we have explained the case where hot air is used as a heat radiation source, but hot water pipes are installed at the eaves, and the heat radiated from the surface of the hot water pipes warms the air and melts the snow on the net. You may.

Further, when the present invention is applied to the roof of a greenhouse, heat radiation from the greenhouse roof surface can be directly utilized, so other heat radiation sources can be omitted.

Furthermore, the present invention can be implemented in both new and existing houses, and other metals, synthetic fibers, etc. can be used as the material for the net and frame.

(Effects of the Invention) As explained in detail above, the snow-melting mesh roof according to the present invention is arranged above the roof surface at an appropriate distance from the roof surface so that the mesh surface is along the roof surface,
It is configured to melt snow using the air between them as a heat medium.

Therefore, moisture generated as a result of snow melting becomes water droplets that fall onto the roof surface and are smoothly removed.

The layer of snow on the net prevents the heat in the heating medium space from dissipating into the atmosphere, so the supplied heat can be used to melt the snow without wasting it.

In particular, as shown in Figure 1, if the lower part of the heat carrier space is closed without a net on the lower part of the roof, wind infiltration can be effectively prevented and the effect of snow melting can be improved. It can be made even larger.
The mesh roof according to the present invention can be made into a unit by frame, and since fastening fittings are provided, construction is easy.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a cross-sectional configuration of the eaves showing an embodiment of the snow-melting net roof according to the present invention. FIG. 2 is a cross-sectional view showing the attachment portion of the frame to the roof plate. FIG. 3 is a perspective view showing the attachment portion of the frame to the roof plate. FIG. 4 is a perspective view of the frame. FIG. 5 is a longitudinal sectional view taken along the line XX in FIG. 4. DESCRIPTION OF SYMBOLS 1...Roof board, 2...Threading hanger, 3...Engagement member, 5...Frame, 6...Fastening metal fittings, 7...
Net, 8... Air pipe.

Claims (1)

[Scope of Claims] 1. A net roof for snow melting configured with a heat radiation source that heats the air between a net surface arranged at a distance from the roof sheet surface and the roof sheet surface, comprising: 4 A frame in the form of a side frame, a mesh surface stretched over the top surface of the frame, an engagement member provided on the roof plate, and a frame provided perpendicularly to the mesh surface on the side and tightened and fixed to the engagement member. A mesh roof for snow melting, characterized in that it is comprised of fastening metal fittings. 2. The net roof for snow melting according to claim 1, wherein the roof plate surface itself is a heat radiation source. 3. The net roof for snow melting according to claim 1, further comprising a heat dissipation device provided at the eaves between the roof plate surface and the net surface. 4. The net roof for snow melting according to claim 3, wherein the heat radiating device is a hot air pipe or a hot water pipe.