The present invention relates to the general field of building covers. It relates more particularly to a tab for receiving and securing a reported structure above a cover plate which has longitudinal waves and which is intended to be secured to a frame of a roof structure. Some building roofs have a roof consisting of plates with longitudinal waves. These cover plates, still commonly called corrugated plates or cover tanks, are generally made of a material of the steel, aluminum or fiber cement type; it is also found in plastic. The fastening of these plates is often done by means of fasteners of the kind jumper, provided for this purpose. In some cases, it may be interesting to report and fix a structure directly above these cover plates. This is particularly the case of photovoltaic solar panels, also called "photovoltaic solar modules", solar water heaters, or some refrigeration units. In particular, solar panels are the basic units for photovoltaic solar installations. They consist of electric generators consisting of a set of photovoltaic cells interconnected electrically Most of the current solar panels are in the form of parallelepipedic rigid plates, of rectangular general shape, the surface is of the order of 1 m2 to 1,5 m2. Depending on the reception support structure, these panels can be installed with their long length in the direction of the slope ("portrait" type installation), or with this long length oriented transversely to the slope (this is called a pose of the "landscape" type).
In some cases, it is planned to mount the photovoltaic panels in the same plane. In other cases, the assembly is carried out with a slight overlap of the upper edge of the panels by the lower edge of the panels directly upstream (it is called a montage said in the manner of tiles or slates).
The mounting of such panels on cover plates is often achieved by means of complex devices comprising rails / support profiles which are secured to said plates by means of dedicated fastening lugs.
However, the use of such dedicated mounting lugs generally requires the realization of additional holes in the cover plates, during their positioning, with the problems of sealing and compliance with standards resulting therefrom. In addition, these specific legs, in addition to the parts necessary for fixing the cover plates, increase the cost of a complete roof structure. In addition, the operations of laying such a complete roof structure can be relatively long and tedious, since it is necessary to report a first set of fasteners to secure the cover plates on the roof structure, then report a second set of pieces to fix the overlayed structure. In this context, the Applicant proposes a new structure for a tab for receiving and joining a structure reported above a cover plate with longitudinal waves. This fastening tab according to the invention has the advantage of simultaneously fulfilling two functions: (i) the fixing of the cover plates on a frame, and (ii) the fixing of a structure attached directly above said plates. blanket. For this purpose, this particular tab according to the invention comprises a fixing portion which is intended to cover a section of the length of one of said waves, on either side of which are arranged two lateral extensions of reception which each comprise a support flap extending in the same plane, for receiving and joining said overlying structure reported. Such a fixing lug makes it possible to simplify the laying of a roof made of corrugated plates to which an overlying structure is attached, for example a set of solar panels. This bracket is particularly suitable for receiving profiles for fixing solar panels (thermal or photovoltaic), water heaters or refrigeration units.
The lateral reception extensions are advantageously each of a dihedral form, consisting of a connecting flap and a support flap, which a connecting flap comprises a lower edge connected to the fixing part and a connected upper edge. audit of the support component. According to a preferred embodiment, the fixing portion is advantageously of the jumper type, comprising: a central plane flap provided with a lower face, designed to face the top of the wave to be covered, and a face upper, intended to come opposite the said wave, and - two side planar side wings, extending said central flap on the side of its lower face to face the side walls of the wave to be covered. In this case, other advantageous characteristics, which can be taken in combination or independently of each other, are indicated below: the central flap of the fixing part has two lateral edges, at each of which extend advantageously one of the lateral extensions of reception and one of the lateral flaps of the fixing part. the support flaps of the lateral extensions advantageously extend outside the space defined by the central flap of the fixing part. - The central flap of the attachment portion has two side edges, and the lateral receiving extensions each extend from one of said side edges of the central flap; the lateral flaps are then advantageously each connected to the central flap of the fixing part by means of a line which is located at a distance from the lateral edges of said central flap and which extends parallel to, or at least approximately parallel to, the latter ; the lateral extensions each extend from the lower edge of one of the lateral flaps; the central flap of the fixing portion comprises two lateral edges, and said lateral flaps are then advantageously each connected to one of said lateral edges of the central flap. - The plane passing through the support flaps extends above the fixing portion; - The fastening lug consists of a rectangular plate, having parallel fold lines, or at least approximately parallel to each other, to form its various component parts. The present invention also relates to the roof structure comprising (i) a frame, (ii) cover plates having longitudinal waves, (iii) a structure attached above said wave cover (eg solar panels), and (iv) mounting tabs as defined above for fixing said wave cover and said insert. In this case, the reported structure advantageously comprises longitudinal rails which are secured to said support flaps of the fastening tabs, which rails constitute at least part of a support device 15 of solar panels. In addition, the adjoining ends of two longitudinal rails are preferably each fixed to one of the support flaps of one of the fixing lugs. The invention will be further illustrated, without being limited in any way, by the following description of several particular embodiments, given by way of example only, and shown in the accompanying drawings, in which: - Figure 1 is a general view and in perspective, a roof structure comprising corrugated cover plates on which solar photovoltaic panels are attached by means of a support device secured to the fastening lugs according to the invention; FIG. 2 is a detailed and enlarged view of the roof structure according to FIG. 1, on which one can observe the fixing lugs intended to receive the support device of the solar panels; FIG. 3 is a perspective view of a fastening tab equipping the roof structure of FIGS. 1 and 2; - Figure 4 is a side view of the bracket according to Figure 3; FIG. 5 is a perspective view of another possible embodiment of a fastening tab according to the invention; Figure 6 is a side view of the bracket according to Figure 5.
The roof structure 1, illustrated in Figures 1 and 2, consists of the occurrence in a building roof. This roof structure 1, sloping, comprises a frame 2 completely covered by a juxtaposition of cover plates 3 which themselves are covered, at least some by solar panels 4 juxtaposed. The cover plates 3 are for example made of galvanized steel thermo-lacquered. These cover plates 3 each comprise a plurality 1 o of longitudinal waves 3a, parallel to each other, projecting upwardly and oriented in the direction of the slope. Each of these longitudinal waves 3a has a generally U-shaped or V-shaped section, opening towards the frame 2. Each longitudinal wave 3a comprises: - an upper wall 3a1, extending at a distance and parallel to the sloped plane of the frame 2, forming its top, and - two side walls 3a2, extending on either side of this upper wall 3a1, facing one another and divergently from said upper wall 3a1 . The fixing of these cover plates 3 on the frame 2 is ensured in particular by means of a set of stirrups 5 each having a generally U-shaped or V-shaped section. Each of these stirrups 5 is suitably installed on the one of the longitudinal waves 3a of a cover plate 3. It is also suitably fixed to the frame 2 by means of a self-drilling screw V. The solar panels 4 are each in the form of a rectangular parallelepipedic structure having for example a surface of the order of 1 m2, or 1.5 m2. They consist of a frame-like frame surrounding a body that incorporates a set of photovoltaic cells. These solar panels 4 are carried by a set of support profiles 6 (or rails), for example made of stainless steel. In this case, these profiles 6 are of two types: - first sections 6a called "uprights", extending in the direction of the slope, and - second profiles 6b called "longitudinal", extending transversely to slope. For the fixing of the corrugated plates 3 and the support profiles 6, the roof structure 1 comprises particular fixing lugs 10, which are visible in FIGS. 2 to 4. These fixing lugs 10 each have two functions: (i) the fixing of a cover plate 3, in addition / replacement of the aforementioned fixing brackets 5, and (ii) the reception and joining of the support profiles 6 carrying the 1 o solar panels 4. The structure of these fastening tabs 10 is described in more detail below with reference to FIGS. 3 and 4. The fastening lug 10 in question comprises a central fixing portion 11 intended to cover a section of the length of one of the waves 3a (such schematically shown in Figure 4), which is associated with two lateral extensions 12, for receiving and fixing the support profiles 6. The fastening portion 11, of the type rider or stirrup, is similar to the triers 5; it comprises: - a rectangular central flap 11a, provided with a lower face 11 a1 intended to come opposite the upper wall 3a1 of the wave 3a, an upper face 11 a2 intended to come opposite the said wave 3a, and delimited in particular by two side edges 11 a3, and - two rectangular side flaps 11 b opposite, extending said central flap 11 has the side of its lower face liai and from said side edges 11a3, each to come view of one of the side flaps 3a2 of the associated wave 3a. The central flap 11a is intended to receive a fastening screw V for securing the cover plate 3 with the frame 2 (FIGS. 2 and 4). In particular, the head of this fastening screw V is intended to catch support on the upper face 11 a2 of this central flap 11a. The side flaps 11b here are divergent with respect to each other, starting from the rectangular central flap 11a, to better fit the side walls 3a2 of the wave 3a.
These lateral flaps 11b each have two borders: an upper edge 1 1b1, connected to one of the lateral edges 11a3 of the central flap 11a by a fold line 13, and - a lower edge 11b2, connected to one of the lateral extensions 12 by a fold line 14. The cross section of this fixing portion 11 (Figure 4) corresponds, advantageously to the game, to the section of the wave 3a to be covered. More specifically, the width of the central flap 11a, corresponding to the 1 o distance between its two side edges 11 a3, is advantageously identical to the width of the upper wall 3a1 of the wave 3a. Likewise, the angle between the central flap 11 a and each lateral flap 11 b is advantageously identical, or at least similar, to the angle between the central wall 3 a 1 and the adjoining side wall 3 a 2 of the associated wave 3 a. The two lateral receiving extensions 12 extend from the fastening portion 11, and are arranged on either side of the latter. Each of these lateral extensions 12 has two rectangular flaps which give it a generally dihedral shape, namely a connecting flap 12a, followed by a support flap 12b. The joining flap 12a has two borders: - a bottom edge 12a1, connected to the bottom edge 11b2 of one of the side flaps 11b of the fixing portion 11 through the fold line 14 above, and - An upper border 12a2, connected to one of the borders 12b1 of the support flap 25b through a fold line 15. The connecting flap 12a forms an acute angle with the side flap 11b associated. This angle is advantageously between 50 ° and 70 °. The support flaps 12b are overlying (or else said to be vertically offset upwards) relative to the associated attachment portion 11. Each bearing flap 12b extends in a plane P1 which is parallel to the plane P2 passing through the central flap 11a of the fastening portion 11. The two bearing flaps 11b extend, moreover, in the same plane P1, overlying and remote from this plane P2 passing through the fixing portion 11.
The distance D between these two planes P1 and P2 is advantageously between 10 and 20 mm. This vertical offset between the two planes P1 and P2 is provided to allow the positioning of the head of the fastening screw V of the fastening lug 10, without disturbing the installation of the support profiles 6 (to have a fastening plane P1 without obstacle). In FIGS. 3 and 4, it can still be seen that the support flaps 12b of the lateral extensions 12 extend outside the lateral space requirement E defined by the upper face 11a1 of the central flap 11a of the fixing portion 11 ; this lateral size E is further delimited by the side edges 11 a3 of this central flap 11a. These support flaps 12b further extend in opposite directions with respect to each other. This feature makes it possible to completely disengage the upper face 11a2 of the central flap 11a of the fixing portion 11, to facilitate the installation of the self-drilling screw V. The corresponding fixing lug 10 advantageously consists of a rectangular metal plate, subjected to several folding operations to obtain the fold lines 13, 14 and 15 parallel, or at least approximately parallel, with respect to each other. The different rectangular flaps 11a, 11b, 12a, 12b constituting said fastening tab 10 are thus obtained. In practice, the fastening tabs 10 are firstly chosen as a function of the section of the waves 3a formed on the plates of FIG. 3. The selected tabs 10 are then suitably positioned and secured to the cover plates 3, so that their attachment portion 11 suitably covers a portion of the length of one of the waves 3a (FIGS. 2 and 4).
The attachment portion 11 of each of these fastening tabs 10 is secured by the positioning of the self-drilling screw V through its central flap 11a, as shown schematically in FIG. 4. The head of this screw V comes finally bearing on the upper face 11 a2 of this central flap 11a.
This self-drilling screw V also contributes to the fixing of the cover plates 3 by cooperating with the frame 2 (by penetration into one of the constituent elements of this frame 2). The longitudinal sections 6b are then secured to these fastening lugs 10 properly laid. For this, each of these longitudinal sections 6b is positioned so as to rest on the support flaps 12b of the fixing lugs 10, and is fixed by means of self-drilling screws 16 (Figure 1). Each longitudinal section 6b rests on the support flaps 12b 1 o several lugs 10 aligned. In addition, the adjoining ends of two longitudinal rails 6b are advantageously each fixed to one of the support flaps 12b of one of the fastening tabs 10. The support flaps 12b of the fastening lugs 10 thus provide a 15 slight vertical offset to the longitudinal rails 6b relative to the fastening portion 11, which allows the mounting of the profiles 6b without being hindered by the size of the head of the self-drilling screw V. The pose continues by fixing the rising profiles 6a on the longitudinal profiles 6b, and then by mounting the solar panels 4 between two rising profiles 6a opposite. The roof structure 1 thus obtained comprises in particular (i) a frame 2, (ii) cover plates 3 having longitudinal waves 3a, (iii) a structure 4, 6 attached above said cover plates 3, comprising solar panels 4 associated with support profiles 6, and (iv) lugs 10 for fixing cover plates 3 and the insert structure 4, 6. A second embodiment of a fastening lug according to the invention. The invention is illustrated in FIGS. 5 and 6. In the interest of simplification, the reference marks used for the description of FIGS. 3 and 4 are retained to designate the identical or similar structural elements shown in FIGS. 5 and 6. fastening lug 10 comprises an attachment portion 11 intended to cover a section of the length of one of the waves 3a (as shown diagrammatically in FIG. 6), associated with two lateral extensions 12, p The fixing part 11, of the kind of jumper or stirrup, also includes here: - a rectangular central flap 1 a1 provided with a lower face liai intended to come opposite to the receiving and fixing of the profiles 6 supports of the solar panels. the upper flap 3a1 of the wave 3a, an upper face 11 a2 intended to come opposite the said wave 3a, and defined in particular by two side edges 11 a3, and - two lateral flaps 11 b facing, extending said central flap 11 has the 1 o side of its lower face liai to come opposite side flaps 3a2 of the wave 3a. In the present embodiment, the borders of the lateral flaps 11b consist of: an upper edge 11b1, connected to the central flap 11a, by a fold line 13 arranged parallel to and at a distance from one of the side edges 11 a3 of said central flap 11a, and - a lower edge 11 b2 free. The section of this fixing portion 11 also corresponds, advantageously to the game, to the section of the wave 3a to be overlapped (FIG. 6). The distance separating the fold lines 13 (associated with the lateral flaps 11b) is thus advantageously identical to, or slightly greater than, the width of the upper wall 3a1 of the wave 3a. Similarly, the angle between the central flap 11a and each side flap 11b is advantageously identical, or at least similar, to the angle between the central wall 3a1 and the side wall 3a2 of the wave 3a. This central flap 11 has also a central through hole 11 a4, to facilitate the positioning of the self-drilling screw V above. Such a central orifice can also be found in the embodiment of FIGS. 2 to 4. In this embodiment illustrated in FIGS. 5 and 6, the two lateral reception extensions 12 rise from the fixing portion 11, and they are spared on both sides of it.
Each of these lateral extensions 12 always has two flaps which give it a generally dihedral shape, namely a connecting flap 12a and a support flap 12b. The connecting flap 12a here consists of two vertical lateral arms, and it comprises two borders: - the lower one 12a1, connected to one of the side edges 11 a3 of the central flap 11a of the fixing portion 11 by the bias of the fold line 14, and - the other upper 12a2, connected to one of the borders 12b1 of the flap 1 o support 12b through the fold line 15. Each connecting flap 12a extends at right angles to the central flap 11a, upwards, that is to say on the side of its top face 11 a2; each of the joining flaps 12a still extends at right angles to the support flaps 12b, which extend in opposite directions.
The support flaps 12b always extend in the same plane P1, above-plane relative to the plane P2 passing through the fixing portion 11. These support flaps 12b of the lateral extensions 12 extend further out of the space requirement E defined by the upper face 11 a2 of the central flap 11 a of the fixing part 11.
In this second embodiment, there is thus found a fastening tab 10 consisting of a rectangular metal plate, to which several fold lines 13, 14 and 15 have been applied parallel, or at least approximately parallel, with respect to each other. others, to constitute the various components 11a, 11b, 12a and 12b.
In this case, the lateral flaps 11b of the fastening portion 11 are obtained by a material withdrawal in the other three flaps 11a, 12a and 12b of the fastener part 10. In one embodiment, the flaps 12b of the fixing lug 10 may extend in the same plane as that of the central flap 30 11a of the fixing portion 11, in particular in the case where the profile of the attached structure 6 does not interfere with the head of the fixing screws V (omega section profile for example). Like the profiles 6b for fixing solar panels 4, such tabs 10 can be used for fixing other elements or installations reported on the corrugated plates 3, for example water heaters or refrigerating units.