JPH0559791A - Seam construction of tin clad roof - Google Patents

Abstract

PURPOSE:To prevent a calking material from peeling caused by freezing incursive rain water by preventing the incursion of rain water up to the depth of a turning section from an opening of a seam in seam construction of a tin clad roof, and to reduce bending processes of joining sides to curtail tin clad operations. CONSTITUTION:In longer tin plates (a) clad with each other, a standing piece 1 is stood and formed in one joining side and, at the same time, a return piece 2 having a section bent in an approximately inverted-L-shape is formed in the other joining side. Standing surfaces 1a and 2a of the return piece 2 and the standing piece 1 of both joining sides of adjacent longer tin plates (a) are connected to each other, and a calking material 3 is filled on the surface of the standing piece 1 or the rear of the front half section 2b of the return piece 2, and the return piece 2 is folded in two at a bending section 2c to insert the standing piece between both of them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrugated iron roof, and more particularly to an improvement in the seam structure of a vertical flat type corrugated iron roof.

[0002]

2. Description of the Related Art Conventionally, the vertical structure of the vertical flat galvanized iron roof as described above includes, for example, Jitsuko Sho 57-41.
No. 295, Jikkou 57-41296 and the like.
As shown in FIGS. 7 (A) to 7 (C), the structure of these galvanized roofs of galvanized iron roofs extends along one joint side of the long galvanized iron plates 101 and 102 adjacent to each other on the roof surface. A standing piece 101a whose tip is bent at a right angle is formed upright, and a return piece 102a whose tip is folded back in a U shape is bent and formed on the other joining side portion, and the inside of the U-shaped portion of the tip of the return piece 102a is formed. After placing the caulking material 103, the pieces 101a and 102a are put together, and the U-shaped portion at the tip of the return piece 102a is fitted to the tip of the standing piece 101a (Fig. 7-
A). And, the tip of the above-mentioned return piece 102 (Fig. 7-
As shown in FIG. 7B), it is bent inward to sandwich the tip portion of the standing piece 101, and further bent so as to be rolled up to the state shown in FIG. 7C.

[0003]

However, in the seam structure constructed as described above, the caulking material 103 for keeping the watertightness of the seam is divided into two folds rather than the opening 104 of the seam. Since the recessed part is sealed, the rainwater that has permeated through the opening may reach the depth of the turn and freeze. In this case, the rainwater that has penetrated into the interior of the folds freezes and causes volume expansion, which causes the folds to be opened and the caulking material 103 to be debonded, thereby damaging the water honey. There is. Further, in the above-described seam structure, since it takes time and labor for the bending process of both sides 101a and 102a performed after the joining sides of the galvanized iron plates are brought into contact with each other, the bending process is reduced as much as possible to perform the iron roofing work. It is desirable to make it easy.

An object of the present invention is to prevent the infiltration of rainwater from the opening of the seam into the folded back in the seam structure of the corrugated iron roof as described above, thereby causing freezing of the infiltrated rainwater. The purpose of the present invention is to eliminate the peeling of the caulking material and to reduce the bending process of the joint side portion to reduce the work of galvanized iron.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention raises a standing piece substantially vertically along one joining side portion of long galvanized iron sheets which are roofed side by side on a roof surface. While being formed, the other joining side part has a substantially inverted cross section L
Form a barb piece that is bent in a letter shape, and make the surface of the barb piece or the tip of the barb piece abutting the barb pieces of the adjacent long side galvanized iron plates on one side and the other side, and the barb pieces of the two joint sides. A caulking material is put on the back surface of the half portion, the return piece is folded into two pieces from the bent portion, and a standing piece is sandwiched between the return pieces.

[0006]

According to the above means, the joining side portions of the long galvanized iron sheets which are roofed next to each other on the roof surface are joined by the engagement of the upright piece and the return piece. The upright piece and the return piece are engaged by folding the return piece into two pieces in a state where the upright surfaces are brought into contact with each other and sandwiching the upright piece between the return pieces, and in this engaged state. In, the caulking material is filled between the front surface of the upright piece and the back surface of the front half of the return piece.
Therefore, the joint between the long galvanized iron plates is directly sealed by the caulking material at the folded opening, thereby preventing rainwater from entering the deep portion through the folded opening.

[0007]

As described above, according to the present invention, since the joint side portions of the adjacent long galvanized iron plates are sealed at the folding openings, rainwater penetrates into the joint folding portions. Therefore, it is possible to prevent the problem that the rainwater that has penetrated into the interior of the folded portion freezes inside and causes the adhesive to peel off from the seal portion as in the case of the conventional seam structure. In addition, since the bending process of the joining side part when joining long galvanized iron plates is only one work of folding two return pieces, the bending work process which is troublesome compared with the conventional one is significantly. This makes it possible to perform galvanizing work more easily and in a shorter time.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 (A) and 1 (B) show a joint portion with a long galvanized iron plate a that is next to the upper surface of the base plate b, that is, a joint. As shown in FIG. 1 (A), each galvanized sheet a has a standing piece 1 vertically formed on one joint side portion of the tin plate a, and has an inverted L shape along the other joint side portion. The bent back piece 2 is formed by bending. Then, the galvanized iron plate a described above is unidirectionally sewn while sequentially joining the adjacent ones by engaging the rising pieces 1 and the return pieces 2 on both joint sides on the field board b.

The standing piece 1 described above is formed by vertically bending one of the joint sides of the galvanized iron plate a by double bending. Furthermore, the tip of the above-mentioned joining side is folded back on the back surface of the same galvanized iron plate a and extended laterally, so that the sandwiching portion 4 is formed.
a and a mounting piece 4b are formed, and the tip of the mounting piece 4b is fixed to the base plate b by using a nail 5. On the other hand, return piece 2
Is formed into a reverse L shape by double-folding the other joint side portion of the galvanized iron plate a. By bending the tip of the joint side and extending it laterally, the sandwiching portion 4a is inserted into the sandwiching portion 4a. The insert 6 is formed. In order to engage the galvanized iron plate a having the standing piece 1 and the return piece 2 formed along both joint sides as described above, the mounting piece 4b formed on one joint side portion of the galvanized iron plate a as described above. By sliding the return piece 2 of the galvanized iron plate a next to the standing piece 1 of the galvanized iron plate a in the state where the nail 5 is fastened to the base plate b,
As shown by the solid line in FIG. 1 (A), the rising surfaces 1a and 2a of the two pieces 1 and 2 are butted against each other. Next, a synthetic adhesive such as silicon or an asbestos thread is impregnated with mortar on the surface of the standing piece 1 described above, or one or both of the back surfaces of the first half 2b of the return piece 2 as shown in the drawing. Serve caulking material. After that, the first half 2b of the return piece 2 is folded from the bent portion 2c into two pieces, and the standing piece 1 is sandwiched so as to cover it from above. As a result, the upright piece 1 is shown in FIG.
As shown in (B), they are engaged in a state of being sandwiched between the folded back pieces 2 folded in two, and the caulking is performed on the opening c of the engaged pieces 1 and 2 and the depth thereof. The material 3 is sandwiched and filled without any gap. As a result, the folded-back portion is sealed at the opening c that serves as the entry source of rainwater.

According to the seam structure constructed as described above, since the folded portion is sealed by the upright piece 1 and the folded piece 2 of the adjacent galvanized iron plates a at the opening c of the folded back, rainwater Can be blocked by the opening c serving as an inflow port, which effectively prevents rainwater from penetrating into the inner part of the folded portion of the joint and freezing to break the watertightness of the caulking material 3. it can. Further, since the folding process performed when joining the galvanized iron sheets a is only one work for folding the return piece, there is an advantage that the construction process is further reduced and the galvanized iron work can be efficiently performed.

The seam structure shown in FIG. 2 has the same main structure as that described above, but the water catching portion is formed by bending the sandwiching piece 26 formed at the tip of the joining side on the returning piece 22 side into a corrugated cross section. 26a is provided, and an inclination is provided near the bases of the upright pieces 21 and the return pieces 22 of both galvanized iron plates a so that rainwater can be prevented from entering the ground plate b. Next, in the seam structure shown in FIG. 3, the tip of the standing piece 31 folded back in an inverted U-shape is bent so as to incline toward the surface side, and the tip of the return piece 32 is bent into a square shape. By doing so, an elastic hooking structure is formed between the two pieces 31 and 32, and the caulking material 33 is filled between the hooking portions to more reliably seal the opening c. In FIG. 4, the tip of the upright piece 41 is folded back to the surface side opposite to that of FIG. 3 to provide the crosspiece 43a at the tip edge, and the folded piece 42 is formed by double bending. Is bent inward toward the inner side of the same piece 42, and the cross-section 41a of the upright piece 41 and the tip of the bent back piece 42 are elastically contacted with each other, and the two pieces 41, 42 By filling the material 43, the caulking material 43 is reliably filled and the sealing property of the opening c is improved. In the seam structure shown in FIG. 5, the rising edge 51 of the standing piece 51 folded back to the front side is bent to have an S-shaped cross section, and the tip half 52b of the return piece 52 is directed inward. It is curved in an arc shape so that the S-shaped bent portion of the upright piece 51 and the first half portion 52b of the return piece 52 are elastically brought into contact with each other, and the caulking material 53 is filled in the space formed therebetween without any gap. Thus, the caulking material 53 is surely filled in the same manner as described above to improve the sealing property of the opening c. The seam structure shown in FIG.
The tip portion of 1 is bent toward the surface side in an arc shape in section, and the front half portion 62b of the return piece 62 is bent into an S-shaped cross section like the standing piece 61 shown in FIG. The bent portion 6 of the return piece 62
At the same time as fitting the arcuate portion immediately after 2c, the caulking material 63 is sandwiched between the mating surfaces of the fitting portion to secure a wide sealing portion. The standing piece and the return piece are formed by double-folding the joint side portion of the galvanized sheet plate, but the same piece can be folded into a single sheet.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a seam portion of a galvanized iron roof according to the present invention.

FIG. 2 is a cross-sectional view showing a seam structure in which a sandwiching piece is provided with a water return portion.

FIG. 3 is a cross-sectional view showing a seam structure in which an elastic hooking structure is formed between the upright piece and the return piece.

FIG. 4 is a cross-sectional view showing a seam structure in which a crosspiece is provided on a standing piece.

FIG. 5 is a cross-sectional view showing a seam structure in which a standing piece is bent into an S-shape in cross section.

FIG. 6 is a cross-sectional view showing a seam structure in which the return piece is bent into an S-shape in section.

FIG. 7 is a cross-sectional view showing a conventional seam structure.

[Explanation of symbols]

 a: galvanized sheet c: folded opening 1 ... standing piece 2 ... folded piece 3 ... caulking material

Claims (1)

[Claims] 1. An erecting piece is formed so as to erect substantially vertically along one joint side portion of long galvanized iron sheets that are next to each other on a roof surface, and the other joint side portion has a substantially inverted L-shaped cross section. Form a bent back piece on one side of the long galvanized iron plate adjacent to each other, the other side of the joint side and the rising side of the rising piece and the return piece of both sides, but the surface of the standing piece or the first half of the return piece. A corrugated iron roof structure constructed by placing a caulking material on the back of the part, folding the bent piece into two pieces from the bent part, and sandwiching a standing piece between the bent pieces.