EP1688554A1 - Device for fixing a roof covering element to a support - Google Patents

Abstract

The device has a fixation hook (6) with a fixation zone of support (2) prolonged of a connection section (12) of a jamb (4). The hook has branches molded in the zone for clasping top and bottom sides of the support of predefined standard thickness while the zone forms an angle with the jamb to manage an insertion space (15) for a covering unit between the jamb and support.

Description

The present invention relates to a device for fixing a covering element, in particular a slate, on a support, such as a bail, batten, this device being in the form of a jamb completed at one end by a hook of retaining the lower edge of said slate and at its other end by a hook attachment to the support.

There are two categories of device for fixing a covering element.

The first category consists of so-called pointed devices in which the jamb of the device is terminated at one end by a retaining hook and at its other end by a tip. An example of such a device, also called hook to nail, is described in particular in FR-A-2,516,135.

The fixing device object of the invention does not belong to such a category of device. Indeed, this fastening device is constituted of a leg whose ends are folded to form, at one end, a U-shaped hook for the retention of a slate said overlying while the Another end defines a U-shaped fastening hook adapted to grip the top and bottom faces of the support, such as a flight or batten.

One of the branches of the fixing hook therefore extends in the same plane as the jamb. As the leg extends rectilinearly between the two hooks in a manner as shown in Figure 6 which corresponds to the state of the art, it results, in the fixed state of the device on a support, such as a bail or batten, an uprising of the catch hook portion of said device which no longer performs its function of plating the underlying cover member. Indeed, when an underlying slate is positioned under the device, as the thickness of a slate is not standard and varies from one slate to another, there is a lifting phenomenon of said device. This uplift, observed at the level of the organ of restraint of the device, leads to poor flatness of the coverage concerned.

The document WO 00/66853 describes a device for fixing large dimensions. In addition, its conformation does not allow to obtain a plating effect.

An object of the present invention is therefore to provide a fixing device of a cover element of the aforementioned type whose design avoids an uprising of the slate overlying the laid state of the latter.

Another object of the present invention is to propose a fastening device for a cover element whose design allows a plating effect of the underlying slate by the fastening device, irrespective of the thickness of the the underlying slate.

For this purpose, the subject of the invention is a device for fixing a covering element, in particular a slate, on a support, such as a flight, batten, which device is in the form of a jamb completed at one end by a retaining hook of the lower edge of said slate and at its other end by a hook for fixing to the support, characterized in that said fixing hook comprises a zone for fixing to the extended support of a connecting section to the leg, the branches of the hook being shaped, in the area of attachment to the support, to enclose exclusively the top and bottom faces of the known standard thickness of the support while the connecting section to the jamb forms with said jamb an angle to spare in the installed state of the device, between the jamb and the support, an insertion space of an underlying cover element.

The insertion space of an underlying cover member thus makes it possible to overcome the thickness variations of said slates, the fastening device being, by its retaining member, constantly in a bearing position on the underlying cover element regardless of the thickness of the slate Underlying.

According to a preferred embodiment of the invention, the fixing hook is connected to the leg by a cross-bent section to provide between the jamb and the support a free space for insertion of an underlying slate, the elbow of said section, closest to the hook of fixation, being situated in the same plane as the external point of support of the retaining hook on said slate to obtain, by cooperation between the elbow and the external point of support of the retaining hook , a plating effect of the underlying slate by the retaining hook.

With this arrangement, it also provides an additional effect of plating the underlying slate by the retaining hook, which ensures better holding of the underlying slate.

According to another preferred embodiment of the invention, the device consists of a round wire, preferably of metal, shaped by folding, at least one fold being formed at each end of the leg to form, at one of the ends of the leg, a recess or counter-bent section shifting transversely and axially the fixing hook relative to the jamb and at the other end of the leg, between the leg and the retaining hook, an open angle giving the retaining hook a direction allowing the oblique introduction of a cover element.

• la figure 1 représente une vue en élévation d'un dispositif conforme à l'invention ;
• la figure 2 représente une vue partielle en plan d'une couverture effectuée à l'aide de dispositifs suivant l'invention ;
• les figures 3A à 3D représentent, sous forme de vues schématiques en coupe, les différentes étapes de pose d'un dispositif de fixation conforme à l'invention ;
• la figure 4 représente une vue de détail en coupe suivant A-A de la couverture représentée à la figure 2 ;
• la figure 5 représente une vue en élévation d'un autre mode de réalisation d'un dispositif conforme à l'invention et
• la figure 6 représente l'état de la technique.

The invention will be better understood on reading the following description of exemplary embodiments, with reference to the appended drawings in which:

• Figure 1 shows an elevational view of a device according to the invention;
• Figure 2 shows a partial plan view of a cover made using devices according to the invention;
• Figures 3A to 3D show, in the form of schematic sectional views, the various steps of laying a fastener according to the invention;
• Figure 4 shows a detail view in section along AA of the cover shown in Figure 2;
• FIG. 5 represents an elevational view of another embodiment of a device according to the invention and
• Figure 6 shows the state of the art.

As mentioned above, the fixing device, which is the subject of the invention, is more particularly intended for covering elements laid according to a technique in accordance with that shown in FIG. 2. These covering elements are thus arranged in successive beds overlapping two-thirds in height, and half in width. Each slate 1, said overlying, is thus engaged by the median part of its foot or lower border in a hook 5 of the device. This slate is further flanked laterally by the features of two slates of the bed immediately overlying. Finally, by its head or upper edge, it is covered by a slate of the bed above the previous one. This provides a substantially staggered arrangement of the fixing devices 3. Due to such an arrangement, each fastening device 3 involved two cover elements: one underlying, the other overlying. Indeed, while the overlying cover element is engaged by its bottom edge or foot in the hook 5 of such a device, the underlying cover element is by its head covered by this one because of the overlap sought between these two elements of coverage. Each cover element can play both the role of an overlying slate or underlying, these elements will bear the same reference number 1.

While the supports 2, such as the batten, to which the fixing device 3 is to be fixed, are of standard thickness, this is not the case for slates whose thickness can vary from slate to other. The fixing device 3, object of the invention, has a design such that it completely empties the thickness of the underlying cover element. Thus, this thickness can vary from one covering element to another without affecting the installation of the fixing device. For this purpose, the fixing device is in the form of a leg 4, terminated at one end by a hook 5 for retaining the lower edge of the slate 1 above and at its other end by a member 6 for fastening to the support 2. This fastening hook 6 comprises a fastening zone 2 to the support 2 extended by a section 12 to the leg 4. The branches of the hook 6, generally U-shaped, are shaped, in the fixing area to the support 2, to enclose exclusively the support 2 of known standard thickness while the section 12 connecting the leg 4 forms with said leg 4 an angle to provide, in the installed state of the device, between the jamb 4 and the support 2, a space 15 for insertion of a cover element 1 said underlying.

Such a fastening device is preferably made from a generally round wire of metal of suitable diameter and shaped to present the desired suitable shapes. The conformation of the wire is made by folding or equivalent.

The fixing device 3 is further designed to exert a plating effect of the underlying slate by the hook 5 retaining. To obtain such a result, the fixing hook 6 is connected to the jamb 4 by a cross-section 12 against-bending to provide between the jamb and the support a free space 15 insertion of an underlying slate 1. The bend 13 of said section 12, the closest to the hook 6 of attachment, is located in the same plane as the point 16 of external support of the hook 5 retaining said slate to obtain, by cooperation between the bend 13 and the 16 outer support point of the hook 5 retaining a plating effect of the slate underlying by the hook 5 retaining. This plane passing through the elbow 13 and the point 16 extends substantially parallel to the longitudinal axis of the jamb. This plan is removed from the jamb to firstly avoid rising water, on the other hand facilitate the establishment of an underlying cover element of varying thickness.

In the examples shown, the connecting section 12 of the leg attachment member is constituted by a first elbow 13 and a second elbow 14. The elbow 14 is disposed in the extension of the leg. This elbow 14 is extended by a rectilinear portion folded again to form the elbow 13. The elbows 13 and 14 are offset axially relative to the leg. The elbow 13 is extended by a rectilinear section which extends substantially parallel to the jamb and which constitutes the first branch of the U-shaped hook 6. This first branch bears on the upper face of the support 2 while the free branch 21 the hook is supported on the underside of the support 2. The elbows 13 and 14, their connecting zone, the leg 4 and the rectilinear section extending the elbow 13 have a profile in the form of stairs. The web of the U of the hook 6 extends substantially perpendicularly to the jamb 4. The distance separating the two bends 13 and 14 can thus be slightly smaller, substantially equal to or preferably slightly greater than the thickness of the cover element at fix covered by said device. In this embodiment, the planes P1; Parallel P2 passing through the points 17, 18 of support of the branches of the hook 6 of attachment to the opposite faces of the slate assembly 1 / support 2 at the cross section 12 of the hook 6 to the leg 4 are removed from a distance greater than the parallel planes P, P1 passing through the points 19, 20 for supporting the branches of the fastening hook 6 on the opposite faces of the support 2 in the zone of attachment to the support 2. Thus, the hook 6, shaped general U, has a free branch 21 whose point or bearing area on the underside of the support 2 is positioned (e) substantially to the right of the section 12 of the connecting hook 6 attachment to the jamb 4.

In a particular embodiment, the point or zone of support of the so-called free branch of the hook 6 on the underside of the support 2 constitutes a pivot point or surface of said device during its installation in order to facilitate this last. Thus, in the example shown in FIG. 5, the so-called free branch 21 of the fixing hook 6 bearing on the underside of the support 2 in the fixed state of the device to the support 2 has the general shape of a spiral, in particular of a spiral winding. This free branch 21 of the hook 6 can still form a ramp for introducing the support 2 into the hook 6.

As the branches of the hook 6 are shaped in the area of attachment to the support 2 to enclose exclusively the support 2 of standard thickness, these branches are generally spaced a distance corresponding to the thickness of the support 2 minus one millimeter. The support 2 has, when it is a batten, a standard thickness of 14 mm or 18 mm or 20 mm.

The retaining hook 5, used to retain the lower edge of a slate, is in turn in the general shape of U. It has a free branch 8 and a branch 9 which forms with the jamb 4 an open angle α, in such a way as to delimit with respect to the jamb 4, an oblique introduction axis of the slate 1 inside said hook 5. The vertex of the angle constitutes a point of support of the slate 1 between the hook 5 and jamb 4 to allow pivoting by inertia of said slate 1 after introduction into the hook 5. This pivoting causes a wedging of the slate 1 between the point 10 of support and the free branch 8 of said hook 5. Again, this This solution is an improvement over the state of the art. Indeed, in the state of the art, the retaining portion of said device was constituted by a generally U-shaped hook, this hook affecting the form of a clamp. This clamp was formed by a U-fold of the jamb, parallel to itself, this fold including a first section which was gradually approaching the jamb and an end section which moved away gradually. The constriction thus formed made it possible to secure the bottom edge of the underlying slate. This solution was not satisfactory due to the fact that the slates do not have a standard thickness. Accordingly, as soon as the thickness of a slate was greater than the area of the constriction, it was necessary for the installer to deform the retaining member to allow the insertion of a slate between the branches of said clamp. When the slate was on the contrary of a thickness less than the thickness retained for the throttling zone, the retaining effect was no longer ensured.

The configuration as imagined and described above with respect to the holding hook solves such problems. In addition, it provides a much shorter exposure time than those observed so far since it is no longer necessary to force insert slate in a throttling zone. It suffices to insert slate freely slanting inside the retaining hook before releasing the latter which is automatically positioned in a locking position. In addition, the angle between jamb 4 and hook 5 restraint household, in the installed state of the device, between the jamb 4 and the top of the slate 1, said underlying, on which the hook 5 restraint takes support, a free space 11 1 preventing any rise of water along said jamb 4. Similarly, this household angle, between the branch 9 of the hook 5 and the underside of the slate said overlying, a free space preventing any upwelling.

In summary, and as mentioned above, the leg binding areas, one to the fixing hook, the other to the retaining hook, each comprise at least one bend. The fixing hook and the retaining hook are located in the same plane and extend in a first step in the same direction vis-à-vis the jamb.

In the examples shown, the angle, close to 140 °, formed between the connecting section 12 of the fixing hook to the jamb 4 and the jamb 4 and the angle α, close to 170 °, formed between the jamb 4 and the retaining hook 5 are chosen such that the section of the leg 4 is substantially parallel to slate 1, said underlying, on top of which said retaining hook 5 bears in the set state of the device. In other words, the connecting section 12 of the hook 6 fixing to the leg 4 is shaped such that, in the installed state of the device, the leg 4 extends substantially parallel to the slate underlying on the top of which the hook 5 retaining bears.

As illustrated in Figures 3A to 3D, the installation of such a device is extremely simple. It suffices firstly to position the fastener on the support 2, it being understood that the latter, because of its design, completely empties the thickness of the underlying cover element. Once the latter has been positioned, it is then sufficient to insert the overlying slate into the retaining member portion of said device before releasing the latter which is self-locking in the retaining member.

Claims (10)

Device (3) for fixing a covering element, in particular a slate (1), on a support (2), such as a battige, batten, this device (3) in the form of a jamb ( 4) terminated at one end by a hook (5) for retaining the lower edge of said slate (1) and at its other end by a hook (6) for fixing to the support (2),
characterized in that said fixing hook (6) comprises a zone of attachment to the support (2) extended by a section (12) of connection to the leg (4), the branches of the hook (6) being shaped, in the zone fastening to the support (2), to grip exclusively the top and bottom faces of the support (2) of known standard thickness while the section (12) of connection to the leg (4) forms with said leg (4) a angle for arranging, in the installed state of the device, between the jamb (4) and the support (2), a space (15) for insertion of an underlying cover element (1). Fastening device (3) according to claim 1,
characterized in that the fastening hook (6) is connected to the leg (4) by a counter-bent section (12) to provide a free insertion space (15) between the leg (4) and the support (2). an underlying slate (1), the elbow (13) of said section (12), the closest to the hook (6) for fixing, being located in the same plane as the point (16) of external support hook (5) retaining said slate to obtain, by cooperation between the elbow (13) and the point (16) of external support of the hook (5) retaining, a plating effect of the slate underlying by the hook (5) retaining. Fastening device (3) according to claim 1,
characterized in that it consists of a round wire, preferably of metal, shaped by folding, at least one fold being provided at each end of the leg (4) to form, at one end of the leg (4). ), an offset or section (12) counter-bent shifting transversely and axially the hook (6) of attachment relative to the leg (4) and at the other end of the leg (4), between jamb (4) and hook ( 5) restraint, an angle open conferring on the hook (5) retaining an orientation allowing the oblique introduction of a cover element. Fastening device (3) according to claim 1,
characterized in that the hook (6), generally U-shaped, has a branch (21) free whose point or bearing area on the underside of the support (2) is positioned (e) substantially to the right of the section (12) for connecting the hook (6) to the jamb (4). Fastening device (3) according to claim 1,
characterized in that the point or zone of support of the so-called free branch of the hook (6) on the underside of the support (2) constitutes a pivot point or surface of said device during its installation in order to facilitate the latter . Fastening device (3) according to claim 1,
characterized in that the branch (21) said free hook attachment (6) bearing on the underside of the support (2) in the fixed state of the device to the support (2) affects the form of a spiral winding. Fastening device (3) according to claim 1,
characterized in that the branch (21) free hook (6) forms a ramp introduction of the support (2) in said hook (6). Fastening device (3) according to claim 1,
characterized in that the hook (5) for retaining the lower edge of a slate (1), said overlying, is generally U-shaped and has a branch (8) free and a branch (9) which forms with the jamb (4) an angle (α) open, so as to delimit with respect to the jamb (4), an oblique introduction axis of the slate (1) inside said hook (5), the vertex the angle constituting a point (10) of support of the slate (1) between hook (5) and jamb (4) to allow a pivoting by inertia of said slate (1) after introduction into the hook (5) this pivoting causing wedging of the slate (1) between the point (10) of support and the branch (8) free of said hook (5). Fastening device (3) according to claim 8,
characterized in that the angle between jamb (4) and hook (5) retains household, in the installed state of the device, between the jamb (4) and the top of a slate (1), said underlying , on which the hook (5) retaining bears, a space (11) free preventing any upwelling along said leg (4). Fastening device (3) according to claim 1,
characterized in that the section (12) for connecting the hook (6) for attachment to the leg (4) is shaped such that, in the installed state of the device, the leg (4) extends substantially parallel to the underlying slate on the top of which the hook (5) retaining bears.

Images