FI130637B - Machine joint assembly for a metal roof and method for producing a machine joint assembly - Google Patents

Abstract

The invention relates to a machine joint assembly for a metal roof, in which the roof metal rows (1, 13, 14) are connected to each other at their longitudinal edges (17, 18). Each row of sheets has a flat central area and the first longitudinal edge of each row of sheets has a first vertical part (2) with a first horizontal inverted part (3) at the top and a second vertical part (4) with a second horizontal forward portion (6) at the opposite longitudinal edge, with a third vertical downward portion (5) formed on its outer edge. The first edge (18) of the preceding sheet row is arranged to be attached to the substructure and the second edge (17) of the adjacent sheet row is arranged to be mounted on the first edge (18) of the preceding sheet row. The first edge (18) of each row of sheets is formed by first cutting from the sheet material (12) a blank with protrusions (20) at desired intervals in the longitudinal direction of the first edge (18). The first edge is profiled to form a first vertical part (2) with a first horizontal inverted part (3) at the top, and said protrusions (20) are each profiled by folding them over the first horizontal part (3) to a third horizontal part (21) and further down to a third vertical part (22) towards the front edge of the first vertical part (2) substantially up to the plane of the central area (24) and then further as a fourth horizontal part (23) to form an integral mounting part (16) with the plate row.

Description

Sheet metal roof machine seam assembly and method for making a sheet metal roof machine seam assembly

The subject of the present invention is a sheet metal roof machine seam assembly, in which the roof sheet metal rows are connected to each other at their longitudinal edges, in which case each sheet metal row has a flat central area and the first longitudinal edge of each sheet metal row has a first vertical section, the upper edge of which has a first horizontal section turned back and the opposite second longitudinal edge is a second vertical section, the upper edge of which has another horizontal, forward-directed section, of which — a third vertical, downward-directed section is formed on the outer edge, whereby the first edge of the previous sheet metal row is arranged to be attached to the substructure and the second edge of the adjacent sheet metal row is arranged to be installed on the previous sheet metal row on top of the first edge, the overlapping longitudinal edges are seamed as a vertical seam. The subject of the invention is also a method for manufacturing a machine-seam assembly.

Typically, a machine-seamable sheet metal roof is made using strip sheet metal from measured sheets, from which sheet metal rows are profiled, in which case adjacent sheet metal rows are connected to each other with a vertical seam. Figure 1 shows sheet metal rows 1, with a vertical fold 2 formed on one edge and a horizontal fold 3 turned backwards on its upper part and a vertical fold 4 on the opposite edge and a horizontal fold 6 directed away from the central area 24 on its upper edge, whose outer edge has vertical downward-directed fold 5 is formed. These folds form a C-profile opening towards the central area 24 on one edge of the metal web and downwards on the opposite edge

N 25 — opening U-profile. When installing a tin roof, the first of the first web,

O the edge containing the C-profile opening towards the central area 24 is attached to the substructure 5 by means of separate fasteners, and after that the other edge of the next web, containing the U-profile opening downwards, is placed on the first edge of the first web

I over its edge and fasteners, after which the overlapping edges are seam- > 30 — closed. Figure 2 shows a typical machine-seamable tin roof bracket 7, which has a fastening part 8 for fastening to the substructure, from

S upward vertical section 9, with a horizontal section 10 at the upper edge and

At its outer edge, a downward-directed fold 11, which forms a hook.

This kind of machine-sealed roof is well-known and functional in itself, but it requires careful sealing, especially in the case of sloping roofs, so that water does not get inside the seams. The problem is especially the seam between the lower surface of the horizontal fold 3 of the first edge of the sheet metal and the surface coming against the mentioned lower surface of the fold 11 of the loose fastener 7 to be installed on top of the fold, which requires careful sealing. When inspecting sheet metal roofs, the seam in question has often been shown to be insufficiently sealed, and through it, under suitable conditions, water has been able to push into the seam between the rows of sheet metal and further into the structures below the roof, causing moisture damage in the structures below.

Solutions according to known technology have been presented, e.g. in WO 2017085357

Al and FI 20096213 A. In the publication WO 2017085357 Al, a fastening clip and a fastening strip separate from the roof sheet are presented. The publication FI 20096213 A presents a solution where the idea is to combine the cover element and the fastening strip.

The aim of the present invention is to improve the installation of a machine-seamable roof and to improve the sealing properties of the seam.

In order to achieve this goal, the machine seam assembly according to the invention is characterized by the things presented in the characterizing part of claim 1. The method according to the invention, on the other hand, is characterized by the things presented in the characterizing part of claim 3.

N 25 — The advantages of the solution according to the invention are e.g. more efficient use of material,

O speeding up the installation work thanks to the use of integrated fasteners and keeping the fastener spacing planned according to the target.

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= In the following, the invention is explained in more detail with reference to the accompanying drawings, where: + 30 < Figure 1 shows typical rows of sheet metal used for machine-sealed roofs,

Figure 2 shows a typical sheet metal row bracket,

Fig. 3 schematically shows an embodiment for the production of a row of tin roofs according to the invention, Fig. 4 shows rows of tins produced in accordance with the method of the invention, Fig. 5 shows in more detail the integrated bracket in the row of tins in Fig. 4, and Fig. 6 the machine seam assembly produced in accordance with the invention.

Figure 3 shows a roll of sheet metal 12, from which two rows of sheet metal 13 and 14 are cut as shown by dashed lines 15. The width of the sheet roll is e.g. 125 cm, and two 62.5 cm wide webs 13, 14 can be cut from it, with protrusions 20 forming fastener blanks. at desired intervals along the edge of each web. The protrusion can be — e.g. rectangular in shape. By doing this, the material of the sheet metal roll can be efficiently utilized for the production of the sheet metal row and bracket. The cut webs go to the profiling machine, which profiles the edge sections 17 and 18 on them, which correspond to the edges shown in Figure 1. Integral fasteners 16 protrusions 20 are profiled on the first edge.

Figure 5 shows the bracket 16 in more detail. It includes a first section 2 directed upwards in relation to the central area of the sheet metal row, the upper edge of which is formed with a first horizontal section 3 directed backwards.

N 25 — to the next horizontal section 21 and further down to the third vertical section

O for section 22 against the front edge of the first vertical section 2 substantially 5 up to the level of the central area 24 and from there on to the fourth horizontal

N for section 23. These sections 21-23 together with the sheet metal row form an integral fastening part 16. If necessary, the fastening part can be pre-equipped with fastening holes 19 > 30 — for passing a fastening device, e.g. a screw or a nail, through section 23 into the substructure. g

N Figure 6 shows a finished machine seam assembly, where the edge 17 is placed on top of the edge 18 of the adjacent sheet metal row and the part 5 of the edge 17 is first folded over the edge

18 below portions 3, 21 against the bottom surface of portion 3, and then portions 5, 3, 21 and 6 are bent vertically downward against the inner surface of portion 2.

When the fastening part 16 is integral with the sheet metal row, the necessary sealing between the horizontal section 3 of the sheet metal row and the gripping hook 11 of the fastening 7, which is necessary in connection with a separate fastener, is avoided, because the sections 3 and 21 form a unified structure, which does not require a separate gripping hook. The sealing agent is advantageously already placed on the inside of the downward-opening U-profile of the edge 17. —At the ridge seam of the sheet metal roof or at other special points, the integrated fastening part can be removed if necessary in advance or on site when installing the sheet metal roof. This is possible because it is a single separate integrated bracket that is easy to bend and cut with, for example, sheet metal scissors.

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Claims (3)

Patent Claims 1. Sheet metal roof machine seam assembly, in which the rows of sheet metal (1, 13, 14) are connected to each other by their longitudinal edges (17, 18), so that each sheet metal row has a flat central 5 areas, the first longitudinal edge of each sheet metal row has a first vertical section (2), whose upper edge is a first horizontal, backward-turned portion (3) and the opposite second longitudinal edge has a second vertical portion (4), whose upper edge has a second horizontal, forward-directed portion (6), the outer edge of which has a third vertical, downward-directed portion (5) , whereby the first edge (18) of the previous sheet metal row is arranged to be attached to the substructure and the second edge (17) of the adjacent sheet metal row is arranged to be installed on top of the first edge (18) of the previous sheet metal row, which overlapping longitudinal edges (17, 18) are seamed vertically into a seam, characterized by the fact that — the first edge (18) of each sheet metal row is formed by first cutting a blank from the sheet metal material (12) with protrusions (20) at the desired intervals along the lengthwise direction of the first edge (18), whereby the first edge is profiled to form of the first vertical section (2), the upper edge of which is the first horizontal, turned back section (3), in which case the said protrusions are profiled by folding them over the first horizontal section (3) into a third horizontal section (21) and further down into a third into a vertical section (22) against the front edge of the first vertical section (2) essentially up to the level of the central area (24) and from there on into a fourth horizontal section (23) to form an integral fixing part (16) with the sheet metal row. on the 25th O 2. Sheet metal roof machine seam assembly according to claim 1, characterized in that the protrusions (20) are substantially rectangular. OF = 3. A method for producing a sheet metal roof machine seam assembly, characterized by > 30 — that in the method, two elongated sheets of sheet metal (13, < 14) are cut from the sheet material, the first edges of which are against each other and projections (20) spaced at desired intervals in their longitudinal direction S are formed on them, whereby each the first N edge (18) is profiled to form a first vertical portion (2) with a first horizontal, turned-back portion (3) at its upper edge, and said protrusions are profiled each time by folding them over the first horizontal portion into a third horizontal portion (21) and further down into a third into the next vertical section (22) against the front edge of the first vertical section (2) essentially up to the level of the central area (24) and from there on into a four-—-span horizontal section (23) to form an integral fastening part (16) with the sheet metal row, whereby the sheet metal row is attached to the substructure with the fastening elements passing through the fastening parts and then the second edge (17) of the sheet metal row to be placed next to it is placed on top of the first edge (18) of the previous sheet metal row and the edges are seamed into a vertical seam. O OF O OF OF I Jami a LO + © O OF O OF