JPH0280752A - Joint structure of roof board of horizontally covered roof - Google Patents

Abstract

PURPOSE:To apply the title joint structure effectively to roof surfaces having various gradients by mutually seam-welding a ridge-side extending section at a lower step and an eave-side extending section on the upper step side integrally under the state in which a mounting section elongated and formed to the ridge-side extending section of a horizontally covered roof is fixed on the roof foundation side. CONSTITUTION:A horizontally covered roof board 10 is composed of a face board section 11 elongated in the longitudinal direction, an eave-side extending section 21 shaped to one side section of the face board section 11, a ridge-side extending section 31 erected to the other side section, inward bent and folded back and formed to the out side, and a mounting section 41 shaped by stretching the folding-back end of the extending section 31. The mounting section 41 on the lower side is fixed to the foundation side 51 while the eave-side extending section 21 on the upper stop side is superposed onto the ridge-side extending section 31, and these superposed ridge-side extending section 31 and eave-side extending section 21 are mutually seam-welded A integrally. Accordingly, a roof having tough structure completely brought to a watertight state is covered, and structure is simplified and the processes can easily be executed at low cost.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a roof plate joining structure for a horizontal roof, and more specifically, a predetermined cross-sectional shape for connection is formed on both sides of a face plate portion with a predetermined width. In addition to installing a horizontal roof board with a one-line side extension on the eave side, the extension on the ridge side is attached to the roof base side, and the lower side side Relating to a roof board joining structure for a horizontally-roofed roof in which the ridge-side extension of the roofing board and the eave-side extension of the upper-level horizontally-thatched roofing board are integrally seam-welded to each other. It is something.

(Prior art) Traditionally, this type of horizontal roof structure has been constructed on both sides of the face plate, which is the main part of the roof, that is, on the eave side of one building, and on the adjacent lower tier side. In order to be able to engage and connect the upper side and the upper side, each
Horizontal roof panels with a structure in which each engaging part on the ridge side is molded are the mainstream, and there are various types and aspects regarding the structure of each engaging part on the eave side and 1 ridge side that are engaged and connected to each other. A number of methods have been proposed, and among them, horizontal roofing sheets using long metal thin steel sheets are mainly used for rain protection.

That is, there is active development of combination engagement part shapes designed to prevent rainwater from entering from the respective engagement parts on the eaves side that are engaged and connected to each other.

However, in the case of horizontal roofing that uses such long metal thin steel sheets, normally, the baking for rust prevention is done using a long metal thin steel sheet of a predetermined width that has been painted, etc. as the roofing material. A steel plate is formed using a roll forming machine, etc., leaving the main face plate part in the center along the longitudinal direction, and continuously forming an eave side forming part on the negative side and a line side forming part on the other side. The material is formed into a shape and then cut into predetermined unit lengths for use.

In this 5, in the roof plate joint structure of a horizontal roof made of long metal thin steel plates having each engagement part on the eave side and one building side configured as described above, for example, the inventor of the present application first proposed We have proposed and implemented it under the product name "Dan Cuff Roof".
As seen in horizontal roof structures, this type of roof structure must meet various conditions, namely, it must be able to withstand intense wind and rain pressure applied from the outside, as well as changes in temperature and temperature. It is possible to achieve various points such as being able to effectively prevent rainwater and foreign objects from entering the interior from the inside, and also has a relatively simple structure and good appearance.
It also satisfies the requirements of easy construction.

[Problem that the invention seeks to solve]

However, in the conventional roof plate joint structure of a horizontal roof in which each engagement part on the eaves side is formed as described above, the roof surface to which it is applied generally has an inclination of more than the normal level, that is, Because it is assumed that the roof has a suitable slope, it cannot be used on roof surfaces with a gentle slope, such as near the top of a circular or semicircular roof surface of a large building such as a gymnasium. , cannot necessarily be effectively adapted to a nearly flat roof surface for various reasons, unlike the case of a vertical roof structure which is relatively unrestricted by the roof slope. there were.

Therefore, an object of the present invention is to make it suitable and effective to apply not only to roof surfaces with a normal slope but also to roof surfaces with a gentle slope. The object of the present invention is to provide a roof plate joining structure for a horizontally-tiled roof of this type.

[Means for solving problems]

In order to achieve the above object, the roof plate joining structure for a horizontal roof according to the present invention includes: one face plate part as a main body extending in the longitudinal direction, two face plates of an eave side extension part formed on one side of the face plate part The line side extension is formed by raising the other side of the section, bending it inward, and folding it back outward.Installation that is formed by extending the folded end of the first ridge side extension is from the section. To install the horizontal roofing board on the lower tier side, fix the part to the roof base side, and on the extension part of the ridge side, install the horizontal roofing board on the upper tier side on the eave side. The feature is that the extending portions are overlapped, and in this state, the overlapping line side extending portion and eaves side extending portion are integrally seam-welded to each other.

Further, the roof plate joining structure for a horizontal roof of the present invention is characterized in that the tip of the eave side extension is folded back downward, and the tip of the line side extension is held by the tip folded portion. , and is characterized in that the tip of the eaves side extension is folded back downward, the tip of the line side extension is held by the folded tip, and the tip is seam welded including the folded tip. Furthermore, after seam welding the overlapping line side extension, tip locking part, and eave side extension into one piece, the welded joint is turned downward and at an appropriate angle. It is characterized by being bent.

[For production]

That is, in the roof board joining structure for a horizontal roof according to the present invention, when installing the horizontal roof board on the lower tier side, the part is fixed to the roof base side, and the upper tier is attached on the ridge side extension part. The eave side extensions of the side horizontal roof boards are overlapped, and in this state, the overlapped ridge side extensions and eave side extensions are integrally seam welded. As a result, both the eave side extension on the lower level and the ridge side extension on the upper level can be reliably joined, making it possible to create a horizontal roof with a strong structure that is completely watertight. In addition, by folding the tip of the eaves side extension downward and having the tip folded back hold the tip of the ridge side extension, protection of the overlapped portion and appearance can be improved. Furthermore, by seam welding the overlapping part including the holding part by the folded end part, the strength of the joint can be further improved. After welding the ridge side extension and the eave side extension to each other with a seam welded together, we bend the welded joint downward at an appropriate angle, thereby improving the appearance of the welded joint. At the same time, the surface can be effectively used as part of the roof design.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a roof plate joining structure for a horizontal roof according to the present invention will be described in detail with reference to FIGS. 1 to 4.

FIG. 1(a) is a sectional view showing the details of the joint structure at each extension part on the eave side 9 line side in a horizontal roof board according to the first embodiment of the present invention, and FIG. FIG. 2 is a cross-sectional view of the same as the above, showing the form of fitting after welding and joining, and FIG.

That is, in the configuration of the first embodiment shown in FIGS. 1 and 2, the horizontal roof plate (10) has a face plate part (II) of a predetermined width as a main body in the central part along the longitudinal direction. The eave side extension part (21) is left on the negative side, and the ridge side extension part (31) is placed on the other side. A long metal thin steel plate is used as a material, and is continuously shaped by roll forming or the like, and then cut into predetermined unit lengths.

Therefore, regarding the eave side extension part (21), a predetermined width (
dl), and as will be described later, the eave side extension (21) has substantially its entire width (d) acting only as a joint, that is, as a joint allowance. do.

Further, regarding the ridge side extension part (31), from the other side part of the face plate part (11), the height (hl) corresponds to the thickness (1) of the roof base material (51), which will be described later. Bend and stand up the standing part (12), bend it inward by a width (d2) corresponding to the width (dl) of the eave side extension part (21), and then bend it again. , is folded back to the outside of the upper part to form a double layer, and furthermore, from this ridge side extension part (31), by extending the folded end as is, a mounting part (41) which also serves as a hanger part is attached. , and a retaining edge (42) is bent at the end, and as will be described later in this section, this ridge side extension (31) has substantially its entire width (
d2) acts only as a joint, that is, only as a joint allowance.

In this case, the roof base material (51) is not shown here, but as is well known, it is fixed to the purlin material constituting the roof frame, or to the rafters. The roof structure according to the example is the same roof base material (51
) The installation shall be fixed on these roof frames with or without.

In the case of the configuration of this first embodiment, in order to join and assemble each horizontal roof board (10) to the roof structure, first, in this case, the roof base material that will be the eaves side, in this case, the lower tier side, is assembled. (51) Horizontal roof board on the upper and lower side (10)
At the same time, the outside of the rising part (12) is butted against the end face of the upper roof base material (51), and the extended installation part (41) is placed against the upper roof base material (51).
51) Fix it appropriately on the top.

In other words, the lower side horizontal roofing board (lO) is fixed on the roof base material (51) extending from the lower side to the upper side, and then the ridge side extension with this lower side horizontal roofing board (10) is fixed. Debe (
31) Above, on the ridge side, here is the horizontal roofing board (10
) are overlapped, and in this state, the eave side extensions (31) and eave side extensions (21), which are overlapped with each other, are overlapped with each other. For example, using a known resistance welding means, a pair of removable opposing electrodes (52) and (52) are used to sandwich and press-contact them from the front and back while applying electricity to join them into a single piece by seam welding (A). In addition, if necessary, as shown in Figure 1(b), seam welding (A) can be performed by overlapping them in this way.
The entire welded joint (B) between the ridge side extension (31) and the eave side extension (21) is bent downward at an appropriate angle and finished. The roofing is done in a stump system starting from the eaves side, that is, the roof is successively laid down from the bottom to the top to form the desired horizontal roof structure.

Furthermore, during the seam welding (A), due to spatial dimensions, the counter electrode (52)
, If it is difficult to make the insertion settings in (52),
If it is difficult to carry out the welding work itself, as shown by the two-dot chain line in Fig. 1(b), the ridge side extensions (31) that overlap each other to form a welded joint, and the tip locking part. (42) and the eave side extension (21) are positioned diagonally upward in advance, and after the welding is completed, the state shown in FIG. good.

In the roof board joint structure of the horizontally ruled roof that has been raised in this way, the lower horizontally ruled roofboards that are adjacent to each other (
10) eave side extension part (21) and the upper side horizontally ruled roof board (
The ridge side extension (31) of lO) is seam welded (
A) Because it is a horizontal roof, it is possible to construct a horizontal roof with a strong structure that is completely sealed against the intrusion of rainwater etc. from the overlapping parts of the same parts. In this case, 2. The horizontal roof itself can be fully utilized as a horizontal roof structure without the risk of water leakage, not only when the slope is normal, but even when the slope is gentle. .

In addition, if necessary, the overlapping ridge side extension portion (
31), the tip locking part (42), and the eave side extension part (21)
) are integrally seam welded (A), and then this welded joint (B) is bent downward at an appropriate angle to finish the welded joint (B). (B), and by extension, improve the appearance, and at the same time, make the surface relatively single and flat by making it a part of the design on the roof, that is, for example, the curved surface. It gives an accent to the roof surface, which tends to be too dark, and can be effectively used as a reflective surface in a sense.

Next, FIG. 3 is a cross-sectional view showing the details of the joint structure at each extension part on the two-line side of the eaves in a horizontal roof board according to a second embodiment of the present invention, and in this second embodiment, The tip of the eaves side extension (21) is folded back downward, and the tip of the ridge side extension (31) is held by the tip folded portion (22). In the case of the configuration of the second embodiment, the tip folded portion (
Regarding 22), this is formed in advance before joining,
When joining, the tip of the ridge side extension (31) is held by this tip folded part (22), and the desired seam welding (8) is made in the part that avoids this holding part. Alternatively, as shown in the configuration of the third embodiment shown in FIG.
Each part including the holding part according to 2) may be seam-welded (A) as expected, and in each of the configurations of the second and third embodiments, the functions and effects of the configuration of the first embodiment are the same. In addition, it has the advantage of being able to protect the overlapping ends from the outside and improve its appearance, and the ridge side extension (21) is protected by the folded end part (22)
By holding the tips of 31), it is possible to raise the roof structure to a certain extent, so if rain occurs during the roofing work, seam welding (8) should be performed at a later date. In addition, in the configuration of the third embodiment, the watertightness at the intervention part of the hanger member (51) is further improved, and the overall welding strength and structural strength are improved. This makes it possible to further improve the rigidity of the material.

Moreover, FIG. 5 is a sectional view showing details of the joint structure at each extension part on the eave side 9 line side in a horizontal roof board according to a fourth embodiment of the present invention. In the configuration of the second embodiment, the attachment part (old) extended from the ridge side extension part (31) is not fixed across the roof base material (51) on the upper stage side, but on the lower stage side, i.e. In order to fix it on the roof base material (51) on the corresponding step side, the folded end of this ridge side extension part (31) is first aligned along the outside of the rising part (12). The hanging part (43) is bent outward again and attached to the part (42), and the same operation and effect can be obtained even with a wood cutter.

〔Effect of the invention〕

As described in detail above, according to the present invention, nine face plate parts as a main body extending in the longitudinal direction, one eave side extension part formed on a side part of the face plate part, and the other side part of the face plate part are raised up to form an inner side. The ridge-side extension part is formed by bending the ridge-side extension part and folding it outward.The installation is made by extending the folded end of the ridge-side extension part. For installation with horizontal roof shingles, attach the part to the roof base, and overlap the eave side extension of the upper horizontal roof shingle on top of the ridge extension. Since the overlapping ridge side extension and eave side extension are integrally seam welded, the extension from the ridge side extension can be attached to the roof base side by part. When installing, the lower eave side extension and the upper ridge side extension can be reliably joined together, creating a completely watertight and strong structure. With this roof structure, the horizontally-roofed roof itself constructed in this way is prone to water leakage, not only when the roof slope is normal, but even when the slope is gentle. There is no fear that this will occur.

Additionally, the tip of the eave side extension of the lower horizontal roof board is folded back downward, and this tip folded portion embraces the tip of the ridge extension of the upper horizontal roof board. By holding the overlapped ends together, the overlapped ends can be protected from the outside and the appearance can be improved. By seam welding the overlapped parts including the holding part by the folded end part, it is possible to join. It has the advantage of increasing the welding strength of the entire part and further improving the structural rigidity, and furthermore, the overlapping ridge side extension part and tip locking part.

After integrally seam welding the eaves and eave side extensions, the welded joint is bent downward at an appropriate angle to improve the appearance of the welded joint,
In addition, the surface can be effectively used as part of the roof design, and it is extremely simple in terms of structure.
It has excellent features such as being easy and inexpensive to implement.

[Brief explanation of the drawing]

FIG. 1(a) is a cross-sectional view showing the details of the joint structure at each extension on the nine-line side of the eaves in a horizontal roof plate to which the first embodiment of the present invention is applied, and FIG. FIG. 2 is a sectional perspective view showing the horizontally folded roof panels and hanging f members taken out individually, and FIG. 5 to 5 are sectional views showing details of the joining structures according to the second to fourth embodiments, respectively. (10)...Horizontal roof board (11)...Face plate part, (12)...Rising part, (21)...Eave side extension part, (22)...・Tip folded part, (31)
... Ridge side extension, (41) ... Mounting part that also serves as a hanger part, (42) ... Stopping edge, (43) ...
Drooping part, (51)...Roof base material, (52),
(52)...Pair of opposing electrodes, (A)...Seam welding, (B)...Welded joint. Patent applicant Funaki Shoji Co., Ltd.

Claims (4)

[Claims] (1) The face plate as the main body extending in the longitudinal direction, the eave side extension formed on one side of the face plate, and the other side of the face plate are raised and bent inward, and these are folded outward. A horizontal roof board is provided, consisting of a ridge side extension part formed by folding back to the ridge side, and an attachment part formed by extending the folded end of the ridge side extension part, and the attachment part with the lower side horizontal roof board is provided. At the same time as attaching it to the roof base side, the eave side extension of the upper horizontal roof board is overlapped on the ridge side extension, and in this state, the overlapping ridge side extension is A roof board joint structure for a horizontal roof, characterized by integral seam welding of the eave side extension and the eave side extension. (2) The side surface according to claim 1, characterized in that the tip end of the eaves side extension part is folded back downward, and the tip end of the ridge side extension part is held by the tip end folded part. Roof plate joint structure for thatched roof. (3) The tip of the eave side extension was folded back downward, and the tip of the ridge extension was held by the folded tip, and the seam was welded including the folded tip. The roof plate joint structure for a horizontal roof as claimed in claim 1. (4) The overlapping ridge side extension and eaves side extension are integrally seam welded, and then this welded joint is bent downward at an appropriate angle. The roof plate joining structure for a horizontal roof according to any one of claims 1 to 3.