JP3105758U - Two-ply corrugated sheet tin - Google Patents

Abstract

An object of the present invention is hardly bent, has strength and durability, has no dew condensation, and has a large heat retaining effect.
A corrugated sheet galvanized sheet 1 and a corrugated sheet galvanized sheet 2 are overlapped and bonded at several places by spot welding 3 to form a double-layered corrugated sheet galvanized sheet. Compared to a single sheet of corrugated iron, the strength has more than tripled, so you can walk without worrying about choosing a footstep. Due to the double structure, a thin layer of air is formed between the two corrugated sheets, the surface temperature of the galvanized sheet is unlikely to drop, and there is almost no concern about condensation. The effect on heat retention is very high compared to the case of a single sheet, and the durability is not inferior to a two-ply corrugated sheet tin.
[Selection diagram] Fig. 1

Description

Detailed description of the invention

  The present invention belongs to the field of civil engineering and construction materials, and more particularly, to a technique of stacking and bonding two sheets of corrugated iron to form a double-walled corrugated sheet.

  The present invention is related to the technology of corrugated sheet iron, but recently, corrugated sheets made of synthetic resin such as PVC, polycarbonate and acrylic have emerged, and depending on the material, the characteristics and function of each corrugated sheet are different. Although there are some differences, it can be said that even if the materials are different, it is possible to apply the technique of superimposing and bonding two corrugated sheets to form a double-walled corrugated sheet.

  Corrugated sheet tin occupies an important position as a material for civil engineering work and a material for construction work, and is always used at any site. Also, it is a material that jumps into your eyes as soon as you look around us, and is a material that is greatly linked to our real life.

  In this way, corrugated corrugated iron, which is a material familiar to us, has great advantages such as "relatively cheaply available. It is easy to process. The range of use is very wide." Coloring and diversification of materials are also progressing.

  However, when corrugated sheet tin is actually used, some problems that have not been solved by the conventional technology as materials become apparent.

Therefore, taking the example of a tin-roofed roof of a simple hut, which is the most common use of corrugated iron, as a material, the first problem is that it is easy to bend. .
In real life, it is necessary to hang a ladder on the eaves and sometimes lean on a long object to get on and off the roof, but that part of the eaves bends or jumps up And it looks very bad. This is a rather fatal drawback noticeable in corrugated iron. This often happens when the snow that accumulates during the winter freezes and then melts as a lump.

  The second problem is that when riding on a corrugated iron roof, the weight of the body causes the corrugated iron to sink and the feet to fall off. It is unpleasant to feel the anxiety when walking while choosing the position to step on while thinking about whether it is strong enough to walk.

In addition, dew condensation in winter is another problem. This phenomenon occurs when the surface temperature of the corrugated iron falls due to cooling, but it is a particularly serious problem in cold regions.
In addition, problems can be found in the durability and heat retaining effect of the corrugated sheet metal.

Issues that the device is trying to solve

  Therefore, is there any way to solve such problems of corrugated iron and to increase the value of corrugated iron as a material? This was the subject of the present invention.

Means for solving the problem

The present invention is directed toward solving the problems of the prior art, and the problem is that when the corrugated iron is used for the roofing material, the eaves are easily bent, as described above. The purpose is to solve the problems of corrugated iron and increase the value of corrugated iron as a material.
Therefore, as a method for achieving the object, two congruent corrugated sheet metal 1 and corrugated sheet metal 2 are overlapped with each other, and are adhered at several places by spot welding 3 (welding only at one point). If a double-layer corrugated sheet tin with a double structure is used (after that, a double-layer corrugated sheet tin with a double structure will be abbreviated to a double-layer corrugated sheet tin), it will be headed in the direction of problem solving. I thought it might be.

The effect of the invention

Therefore, the effect of the present invention was examined and considered by actually using the prototyped two-ply corrugated sheet tin of the present invention.
The first problem, when used for roofing, is that the eaves bend or jump up, which is not good for the appearance. One of the problems is the use of a single sheet of corrugated iron (thickness 0.19 mm) and a double sheet corrugated iron. As a result of an experiment on the force applied to the eaves and the bending, it was found that the strength of the two-ply corrugated iron sheet was more than three times that of a single corrugated sheet, and that this problem could be cleared. However, it was also found that satisfactory results were not obtained when the two sheets of corrugated sheet metal were simply nailed and not bonded by spot welding 3.

Next, there is the problem of anxiety when walking on a roof covered with a single sheet of corrugated iron. However, when two sheets of corrugated iron are used, the strength is three times that of a single sheet of corrugated iron. It has been found that it is safe to walk without choosing a footstep.
In heavy snowfall areas, it is common to roof the roof with a corrugated iron sheet with a thickness of 0.25 mm, but even in such a case, it is safer to use a two-ply corrugated iron sheet because of its strength. I also understood that.

In addition, since the dew condensation phenomenon has a double structure, a thin layer of air is formed between the two corrugated sheet tins, so that the surface temperature of the tin hardly decreases and there is almost no concern about dew condensation.
Furthermore, the effect on heat retention was found to be much higher than that of a single sheet. Of course, the durability of the two-ply corrugated sheet tin did not change.

In addition, thankfully, the roofed traces are so thick that they do not compare with single sheets of corrugated iron, and even if you use only two layers of corrugated sheet metal, you can feel uncomfortable with one sheet of corrugated metal The fact that there was no such was added to the effect of the invention.
As described above, the present invention is a simple one in which only two sheets of corrugated sheet tin are overlapped and bonded, but it has been found that the value of corrugated sheet tin as a material is surprisingly large.

  It is a sketch of the present invention.

Explanation of reference numerals

1 corrugated iron 1
2 corrugated sheet tin 2
3 spot welding

Claims (1)

  Corrugated sheet metal (1) and corrugated sheet metal (2) are overlapped, and spot welding (3) is applied at several places to form a double structure, thereby increasing the value of corrugated sheet metal as a material. .

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