EP2053174B1 - System for supporting a panel made from a fragile material such as glass, on a rigid frame on the façade of a construction - Google Patents

Abstract

The system has an interface (6) in the form of projection and housed in a retention cavity (4) of a substrate (3) of a panel (1) for forming a retention connection to retain the projection in the cavity. A contact interface (7) is associated to a rigid frame (2). The retention cavity and the interface (6) are extended on the length of a side of the substrate. The interface (6) is carried by a profile (9) extending on the length of the side of the substrate, where substrate is made of glass. The contact interface ensures connection between the profile and the frame.

Description

The present invention relates to a system for maintaining a panel on a rigid frame, by a complete connection, in particular on the front of a construction, the panel comprising at least one substrate made of glass-type fragile material, the substrate comprising a retention cavity positioned on a surface portion of the substrate, the holding system having means for completely connecting the panel to the framework via a single substrate.

The prior art teaches, for example, a system for maintaining a front panel, in a rabbet formed by the rigid frame, for example metallic, open towards the outside, the panel being placed in the rabbet, with its inner face bearing against an inner seal in the vertical plane, and held in position, for example by means of screwed bead, bearing against the outer face of the panel opposite the inner face, via a seal. Each facade panel is thus sandwiched between its two faces, external and internal, by the rigid frame.

• il est volumineux, les bords des panneaux étant recouverts pour assurer à la fois le maintien du vitrage en position et l'étanchéité à l'air, à l'eau et au vent,
• il nécessite une surépaisseur en avant de la face extérieure des panneaux, de l'ossature ou plus particulièrement du moyen de parclose, notamment pour réaliser l'étanchéité.

Such a holding system has the following drawbacks:

• it is bulky, the edges of the panels being covered to ensure both the maintenance of the glazing in position and airtightness, water and wind,
• it requires an extra thickness in front of the outer face of the panels, the frame or more particularly the beading means, in particular to achieve sealing.

We know the document WO 02/35045 which relates to a system for fixing a glazing element on a rigid frame, by a direct engagement of the glazing by means of several fixing points distributed on the periphery of the glazing, respectively formed by a plurality of connecting pieces each connected to the glazing. frame and penetrating into several cavities formed on the edge of the glazing. The maintenance of the glazing is done by rotation of the connecting piece, which during this movement enters the cavity of the glazing. The area of the connecting piece which penetrates punctually in a cavity of the glazing is covered with a layer of rubber. Such a technology which overcomes the disadvantages mentioned above, however, has the disadvantage of increasing the stress concentrations in the glazing in the area of the attachment points.

• ledit panneau comportant au moins un substrat réalisé en matériau fragile de type verre,
• ledit substrat comportant une cavité de rétention positionnée sur une portion de surface dudit substrat,
• le système de maintien comportant :
  • des moyens de liaison complète dudit panneau à ladite ossature via ledit substrat unique, ou un unique desdits substrats, et via ladite cavité de rétention, qui comprennent :
    • une première interface, en forme de saillie, logée dans ladite cavité de rétention dudit substrat en sorte de former avec elle une liaison de rétention de ladite saillie dans ladite cavité,
    • une deuxième interface, de contact, associée à ladite ossature,
• ladite cavité de rétention s'étendant au moins sur la longueur ou sensiblement sur la longueur d'un premier côté dudit substrat,
• le système de maintien étant caractérisé en ce que :
• ladite première interface, en forme de saillie, s'étend au moins sur la longueur ou sensiblement sur la longueur d'un premier côté dudit substrat, et est portée par un premier profilé qui s'étend sur la longueur ou sensiblement sur la longueur du premier côté du substrat, et
• la deuxième interface assurant une liaison entre le premier profilé et l'ossature.

The present invention aims to overcome these disadvantages and to provide other advantages. More specifically, the invention relates to a system for holding a panel of glass-type fragile material, on a rigid frame, by a complete connection, especially in front of a construction,

• said panel comprising at least one substrate made of glass-type fragile material,
• said substrate having a retention cavity positioned on a surface portion of said substrate,
• the holding system comprising:
  • means for completely connecting said panel to said framework via said single substrate, or a single one of said substrates, and via said retention cavity, which comprise:
    • a first interface, in the form of a projection, housed in said retention cavity of said substrate so as to form with it a connection for retaining said projection in said cavity,
    • a second interface, contact, associated with said frame,
• said retention cavity extending at least along the length or substantially the length of a first side of said substrate,
• the holding system being characterized in that:
• said first protruding interface extends at least along the length or substantially the length of a first side of said substrate, and is carried by a first profile which extends along the length or substantially the length of the first side of the substrate, and
• the second interface providing a connection between the first section and the frame.

Maintaining a panel on a rigid frame by connecting means engaged in a retention cavity formed in a substrate, and connecting this cavity to the rigid frame of the facade, allows to propose a different way of the state of the prior art using sandwiching of the panel. By panel comprising a substrate made of glass-type fragile material, here is meant in particular any monolithic type panel, for example single glazing, or composite, for example laminated, layer, or insulating glazing consisting of several windows separated from one another. air blade. By fragile material is meant, for example, any fragile mineral material, marble type or the like, glass being cited as a preferred example. Taking the substrate by a profiled projection in a cavity all along at least one side of the substrate, allows to offer a maintenance of the panel by efforts evenly distributed along at least one side of the panel, which allows the attachment of the panel by a single substrate with a relatively low substrate thickness given the small transverse dimensions such a connection.

According to an advantageous characteristic, said retention cavity is positioned on a surface portion located on a edge of said substrate, and practiced at said edge.

This feature provides opportunities for fixing panels on the front, which extend in a space between the edges of the panels without extending from this space beyond the vertical plane defined by the outer faces of the panels.

According to an advantageous characteristic, said first interface, in the form of a projection, provides fluid sealing when it cooperates with said retention cavity, so as to form with it a continuous fluid-tight retention connection on the side of the substrate.

According to an advantageous characteristic, said retention connection of said projection in said cavity has complementary profiles against undercut between the projection and the cavity, in order to obtain a connection of the first section to said substrate by obstacle.

This characteristic provides a retention connection which gives the connection between the projection and the cavity a bond or attachment proper to one another, at least partial or complete, once the projection in place in the cavity, and thus a secure intrinsic maintenance of the profile in the cavity of the substrate. Such a feature contributes to reducing the size of the cavity, allowing the connection of the panel to the framework by a single substrate of this panel, with a relatively small thickness of the substrate.

According to an advantageous characteristic, the system according to the invention further comprises a rigid security element, intended to be fixed to said framework by a complete connection, and comprising a free male part, capable of being inserted into said retention cavity, said rigid security element cooperating, along the length of the male part inserted into the cavity, with said first interface, in the form of a projection, of said connecting means of said panel to said framework, so as to participate in the retention connection of said projection in said cavity.

This characteristic makes it possible to offer a system for maintaining security of the panel in the case where the connection means of the panel to the rigid frame, as defined above, would fail, for example due to an accidental cause. In the case where the connecting means of the panel to the framework as described above are existing and active, the security element is intrinsically useless and participates only locally and additionally to the retention link assumed by the projection in the cavity. In the case where the connecting means of the panel to the frame as described above are present, but inactive, for whatever reason, the security element or elements come to ensure the maintenance of the panel on the frame; this maintenance, said security, occurs simultaneously with the disappearance of the connection means, or at the very moment when they are no longer able to fulfill their function of connecting the panel to the frame, providing a redundant connection to that of the connecting means of the panel to the frame, but inactive when the latter themselves are active. For this purpose, the connection of the panel to the frame, provided by the security element or elements may not be complete, the only function required to, or security elements being to maintain the panel on the frame and to avoid as it falls to the ground in case of disappearance of the basic connection means.

According to an advantageous characteristic, said second interface, contact, suitable for being associated with said frame, comprises a plurality of discontinuous contact segments, each able to bear on said frame and to be linked to the latter.

This characteristic makes it possible to optimize the connection means, on the frame side, which can accept higher point forces than those used in a connection with a glass-type fragile material.

• un premier profilé portant ladite première interface en forme de saillie,
• une pluralité de deuxièmes profilés, apte à être liés au dit premier profilé et comportant ladite deuxième interface de contact.

According to an advantageous characteristic, said linking means comprise:

• a first section carrying said first protruding interface,
• a plurality of second sections, adapted to be connected to said first profile and comprising said second contact interface.

The connecting means formed from or from profiles make it possible to minimize their costs while distributing the holding forces.

According to an advantageous characteristic, said plurality of second sections is linked to said first section by a connection to a degree of freedom in translation.

This feature facilitates the implementation of the connection means between a panel and the frame, in that the second sections can be adjusted in position relative to the frame by moving according to the degree of freedom in translation. The complete connection of the panel is obtained by the establishment of second sections distributed on several sides so as to cancel the overall degree of freedom in translation of a second profile relative to a first profile.

According to an advantageous characteristic, said connection with a degree of freedom in translation comprises a sliding interlock.

According to an alternative advantageous characteristic, said plurality of second sections is bonded to said first section by a complete connection.

According to an advantageous characteristic, said second sections each adopt a substantially L-shape, one branch of which is intended to be connected to the framework, and the other branch of which is intended to be linked, by its free end, to said first profile.

According to an advantageous characteristic, said first section adopts a substantially polygonal cross-sectional shape, a first face of which comprises said first protruding interface, and a second face disposed substantially at right angles to said first face, comprises means for connecting to said second sections.

The foregoing two features make it possible to implement a form of connection of reduced bulk by optimizing the space between the two edges of two panels juxtaposed in a facade.

According to an advantageous characteristic, said first section comprises a recess of a determined length, intended to house a portion of said security element.

• un voile central,
• un premier voile d'extrémité, destiné à être fixé à l'ossature, solidaire d'un premier bord longitudinal dudit voile central, et s'étendant dans une première direction perpendiculaire au dit voile central,
• un deuxième voile d'extrémité, destiné à être inséré dans ladite cavité de rétention du substrat, solidaire d'un deuxième bord longitudinal dudit voile central, opposé au premier bord longitudinal et s'étendant dans une deuxième direction perpendiculaire au voile central, opposée à la première direction.

According to an advantageous characteristic, a security element adopts a form of one-piece profile whose cross-section comprises:

• a central veil,
• a first end web, intended to be fixed to the framework, integral with a first longitudinal edge of said central web, and extending in a first direction perpendicular to said central web,
• a second end veil, intended to be inserted into said substrate retention cavity, integral with a second longitudinal edge of said central veil, opposite to the first longitudinal edge and extending in a second direction perpendicular to the central veil, opposite to the first direction.

According to an advantageous characteristic, said portion of the security element housed in the notch of the first profile comprises the second end veil and part of the central veil.

According to an advantageous characteristic, said retention cavity extends along the length of the four sides of the substrate, and said first interface, in the form of a projection, extends along the length of said four sides of the substrate.

According to an advantageous characteristic, said second interface, contact, suitable for being associated with said frame, comprises a plurality of discontinuous contact segments, distributed on all four sides of the substrate, each adapted to bear on said framework and to be associated with the latter.

• des moyens de joint externe entrant dans la constitution d'une liaison entre les deux bords rectilignes en vis-à-vis de deux côtés adjacents de deux panneaux adjacents, sur ladite façade d'une construction, chacun des deux panneaux comportant un substrat réalisé en matériau fragile de type verre,
• des moyens d'association desdits moyens de joint externe, aux moyens de liaison respectifs desdits deux côtés adjacents desdits deux panneaux adjacents à ladite ossature.

According to an advantageous characteristic, the system according to the invention comprises:

• external joint means forming a connection between the two straight edges facing two adjacent sides of two adjacent panels, on said facade of a construction, each of the two panels comprising a substrate made of fragile glass-type material,
• means for associating said external seal means with the respective connecting means of said two adjacent sides of said two panels adjacent said frame.

The outer seal means participate in the AEV and advantageously thermal sealing of the holding system according to the invention, and make it possible to confer a particular aesthetic thanks to the outer face of the outer seal means, visible in front of the construction. By the expression "participates" or "entering the constitution of", with respect to the external seal means, it is meant here that the latter can perform the defined function on their own or in cooperation with one or more other elements . In this case, the outer seal means may not come into contact with the edges of the two juxtaposed panels.

According to an advantageous characteristic, said means for associating said external seal means with the connecting means of said two adjacent sides of said two adjacent panels to said framework comprise an elastic structure acting by elastic deformation, said elastic structure being able to be inserted between said connecting means respectively to said framework, said two adjacent sides of said two adjacent panels.

This feature makes it possible to offer a simple embodiment for fixing the external joint means between the two straight edges facing two sides of two adjacent panels, by a clipping means or the like, discrete in front because non visible.

According to an advantageous characteristic, the outer seal means comprise support means on two first sections vis-à-vis, respective connection to said frame, each of said two adjacent sides of said two adjacent panels, adapted to cooperate with said elastic structure for forming a complete connection of said outer seal means to said framework.

According to this feature, two first connecting profiles vis-à-vis can advantageously cooperate with the outer seal means to ensure a tight connection between the two straight edges vis-à-vis two sides of two adjacent panels. Such a characteristic makes it possible to absorb a variation in the distance separating two edges vis-à-vis two juxtaposed panels, while guaranteeing the tightness of the connection between the two rectilinear edges facing each other, by overlapping outer seal means on the first sections.

According to an advantageous characteristic, said support means comprise a first support on a front face of said first two sections adopting a polygonal cross-sectional shape.

According to an advantageous characteristic, said elastic structure cooperates with a second rear face of said first two sections adopting a polygonal cross-sectional shape.

• au moins une cale d'appui inférieur d'un panneau comportant un substrat réalisé en matériau fragile de type verre,
• des moyens d'association de ladite cale d'appui au dit panneau comportant un substrat réalisé en matériau fragile de type verre.

According to an advantageous characteristic, the system according to the invention furthermore comprises:

• at least one lower support block of a panel comprising a substrate made of glass-type fragile material,
• means for associating said support block with said panel comprising a substrate made of glass-type fragile material.

According to an advantageous characteristic, said means for associating said support wedge with said panel cooperate with said connecting means of said panel to said framework.

According to an advantageous characteristic, said means for associating said support wedge with said panel comprise a connection of the lower support block to said first profile.

• des moyens de support de ladite cale d'appui, aptes à coopérer avec cette dernière en vue d'un pré-positionnement du panneau par rapport à ladite ossature rigide,
• des moyens de fixation desdits moyens de support de la cale d'appui, à ladite ossature.

According to an advantageous characteristic, the system according to the invention furthermore comprises:

• support means for said support wedge, adapted to cooperate with the latter for the purpose of pre-positioning the panel with respect to said rigid framework,
• means for fixing said support means of the support wedge to said framework.

The support means of the support wedge, in cooperation with the wedge itself and thanks to the means of association of the lower support block to the panel advantageously allow a pre-positioning of the panel relative to the rigid frame , useful when placing the panel on the rigid framework, because it allows for example to facilitate the application of a prestressing on the inner seal when plating the panel in the rabbets of the frame which are intended for him.

According to an advantageous characteristic, said support means of said support wedge, adopt a profile shape comprising at least one pre-positioning groove of the panel relative to said framework, via said lower support wedge.

• La figure 1 représente une vue en perspective, de l'extérieur, partielle, d'un exemple de mode de réalisation d'un système de maintien de plusieurs panneaux en matériau fragile du type verre, sur une ossature rigide, par une liaison complète, en façade d'une construction.
• La figure 2 représente une vue de face, de l'extérieur, partielle, de l'exemple de la figure 1.
• La figure 3 représente une vue selon la coupe I-I de la figure 2, correspondant à une coupe prise au niveau d'une traverse horizontale de la façade.
• La figure 4 représente une vue selon la coupe II-II de la figure 2, correspondant à une coupe prise au niveau d'un montant vertical de la façade.
• La figure 5 représente une vue en perspective d'un panneau seul, vue de l'intérieur, pré-équipé d'une partie des moyens de liaison à l'ossature.
• La figure 6 représente un détail agrandi de la figure 5, en vue de dessus.
• La figure 7 représente un détail agrandi de la figure 5, en vue de dessous.
• Les figures 8 et 9 représentent des vues en perspective d'éléments intervenant en partie inférieure de la liaison du panneau à l'ossature.
• La figure 10 représente un détail agrandi de la figure 7, mais vue en perspective vue de dessus et de l'intérieur, un panneau ayant été dissocié pour ne montrer que le substrat.
• La figure 11 représente une vue en perspective de l'extérieur de l'ossature rigide, les panneaux ayant été retirés, et l'élément représenté sur la figure 9 ayant été mis en place sur l'ossature rigide.
• La figure 12 représente une vue partielle en perspective de l'extérieur et de dessus d'un panneau pré-équipé d'une partie des moyens de fixation en position de montage sur le panneau, seul le substrat du panneau ayant été représenté.
• La figure 13 représente une vue en perspective partielle de l'extérieur, d'un élément rigide de sécurité, mis en place entre l'ossature rigide et le panneau.
• La figure 14 représente une vue en perspective partielle d'un détail des moyens de liaison d'un panneau à l'ossature rigide, apte à intégrer un élément de sécurité.
• La figure 15 représente la vue en perspective partielle du détail de la figure 14 avec l'élément de sécurité intégré.
• La figure 16 montre une vue en perspective d'un exemple d'assemblage d'un panneau avec des moyens de liaison partiels et un élément de sécurité.

Other features and advantages will appear on reading the following of an exemplary embodiment of a system according to the invention, accompanied by the accompanying drawings, an example given by way of nonlimiting illustration.

• The figure 1 represents a perspective view, from the outside, partially, of an exemplary embodiment of a system for holding several panels of glass-type fragile material, on a rigid frame, by a complete connection, in front of 'a construction.
• The figure 2 represents a front view, from outside, partial, of the example of the figure 1 .
• The figure 3 represents a view according to section II of the figure 2 , corresponding to a section taken at the level of a horizontal cross member of the facade.
• The figure 4 represents a view according to section II-II of the figure 2 , corresponding to a cut taken at the level of a vertical amount of the facade.
• The figure 5 represents a perspective view of a single panel, seen from the interior, pre-equipped with a part of the connection means to the frame.
• The figure 6 represents an enlarged detail of the figure 5 , in top view.
• The figure 7 represents an enlarged detail of the figure 5 , in view from below.
• The Figures 8 and 9 represent perspective views of elements involved in the lower part of the connection of the panel to the frame.
• The figure 10 represents an enlarged detail of the figure 7 , but viewed in perspective from above and from the inside, a panel having been dissociated to show only the substrate.
• The figure 11 represents a perspective view of the outside of the rigid frame, the panels having been removed, and the element represented on the figure 9 having been put in place on the rigid frame.
• The figure 12 is a partial perspective view of the exterior and top of a panel pre-equipped with a portion of the fastening means in mounting position on the panel, only the substrate of the panel having been shown.
• The figure 13 represents a partial perspective view of the outside, of a rigid security element, placed between the rigid frame and the panel.
• The figure 14 represents a partial perspective view of a detail of the connection means of a panel to the rigid frame, adapted to integrate a security element.
• The figure 15 represents the partial perspective view of the detail of the figure 14 with the integrated security element.
• The figure 16 shows a perspective view of an exemplary assembly of a panel with partial connection means and a security element.

• le substrat 3 comporte une cavité 4 de rétention positionnée sur une portion de surface du substrat 3, et

le système de maintien comprenant :

• des moyens de liaison 5 complète du panneau 1 à l'ossature 2 via un substrat unique, comportant :
  • une première interface 6, en forme de saillie, logée dans la cavité de rétention du substrat en sorte de former avec elle une liaison de rétention de la saillie dans la cavité,
  • une deuxième interface 7, de contact, associée à l'ossature rigide 2,
• la cavité de rétention 4 s'étendant au moins sur la longueur d'un premier côté du substrat 3,
• la première interface 6, en forme de saillie, s'étendant au moins sur la longueur d'un premier côté du substrat 3, et étant portée par un premier profilé 9 qui s'étend sur la longueur du premier côté du substrat 3, et
• la deuxième interface 7 assurant une liaison entre le premier profilé 9 et l'ossature rigide 2.

The example according to the invention shown in Figures 1 to 16 is a system for holding a panel 1 of glass-type fragile material, on a rigid frame 2, by a complete connection, in front of a construction, the panel 1 comprising a substrate 3 made of glass-type fragile material,

• the substrate 3 comprises a retention cavity 4 positioned on a surface portion of the substrate 3, and

the holding system comprising:

• complete connection means 5 of the panel 1 to the frame 2 via a single substrate, comprising:
  • a first interface 6, in the form of a projection, housed in the retention cavity of the substrate so as to form with it a connection for retaining the projection in the cavity,
  • a second interface 7, contact, associated with the rigid frame 2,
• the retention cavity 4 extending at least along the length of a first side of the substrate 3,
• the first projection-shaped interface 6 extending at least along the length of a first side of the substrate 3, and being carried by a first section 9 which extends along the length of the first side of the substrate 3, and
• the second interface 7 providing a connection between the first section 9 and the rigid frame 2.

The retention cavity 4 is advantageously positioned on a surface portion located on a edge 8 of the substrate 3, and made at the edge 8, at least along the length of a first side of the substrate 3, and preferably two, or four sides of the edge 8 of the substrate 3 as in the example shown.

The panel may be composed of several substrates made of glass-type fragile material, for example double glazing, but also a substrate of fragile material, for example glass-type material, and one or more substrates of non-brittle material associated with the glass. substrate of fragile material by a double glazing type assembly or the like. In the example shown, the single substrate comprising the retention cavity 4 is the substrate 3 in contact with the outside, the other substrate 12 of the panel 1 being in contact with the interior of the construction, and having its inside face. resting on a peripheral seal 11 engaged on the rigid frame 2. The substrate 12 has no cavity or at least does not have a cavity used for fixing the panel to the rigid frame. The panel 1 is further supported on its lower edge by gravity, as will be described later.

The rigid frame 2 is a frame of known type having a conventional panel placement rabbet, and which will therefore not be described here. For example, a rigid framing frame type for glass facade, curtain wall, veture, double facade, or the like, may be suitable. In the example shown in the figures, the rigid frame 2 has a separating wall 13 forming part of the rabbets 14 as shown in FIGS. figures 3 and 4 more particularly, and separating two rabbets 14 juxtaposed for two panels 1 juxtaposed, this according to the direction two rabbets 14 juxtaposed for two panels 1 juxtaposed, this in the vertical or horizontal direction.

On the figures 1 and 2 , as shown by way of example, four partial panels 1 juxtaposed, the four panels 1 shown partially being contiguous by one of their angles, corresponding to a crossing crossbar and vertical amount of the frame 2. The facade unit represented on the figures 1 and 2 is reproduced over the entire surface of the facade, each panel side 1 being engaged in a rabbet of the frame 2. It should be noted that the panels on the figures 1 , 10 , 12 are shown not complete, to better highlight the invention. In the other figures, they are represented complete, but sometimes in partial view with regard to their surface.

Advantageously, and in the example shown, according to the invention, the cavity 4 extends continuously over the length of the four sides of the substrate 3, but this cavity may consist of two or more cavities distributed respectively over two or more sides of the substrate. Thus, in the example shown, the retention cavity 4 opens integrally on the edge of the substrate and opens at both ends of one side of the substrate, on the adjacent sides of the substrate, but may, alternatively, be blind. and stop near the two ends of one side of the substrate.

In the example shown, the retention cavity 4 is delimited by a sidewall concave profile, concavity facing inward, and advantageously has a circular cross section or oblong. Such an example of a retention cavity 4 is known and described in the document WO 2006/054011 , and will not be more detailed here.

The first interface 6, in the form of a projection, advantageously extends along the length of one side of the substrate 3, and preferably along the length of the four sides of the substrate 3, and preferably provides fluid-tightness when it co-operates with the retention cavity 4, so as to form with it a fluid-tight retention connection.

The retention cavity 4 advantageously takes the form of a groove whose longitudinal extension is parallel to the outer surface of the substrate which constitutes one of the panes of the double-glazed panel shown in the example. For example, the retention groove 4 is centered on the edge of the substrate, so that the same amount of material exists on both sides of the groove to the corresponding outer face of the substrate, this for thin substrates. The retention groove may be off-center on the surface of the edge, as required, for substrates with a greater thickness.

• un premier profilé 9 portant la première interface 6 en forme de saillie, et
• une pluralité de deuxièmes profilés 10, apte à être liés au premier profilé 9 et comportant la deuxième interface 7 de contact.

The complete linking means 5 advantageously comprise:

• a first section 9 carrying the first interface 6 in the form of a projection, and
• a plurality of second sections 10, adapted to be connected to the first section 9 and having the second interface 7 of contact.

Advantageously, the second interface 7, contact, suitable for being associated with the rigid frame 2, comprises a plurality of discontinuous contact segments 15, each able to bear on the frame 2 and to be linked thereto , and corresponding to the plurality of second sections 10.

Advantageously, the plurality of second sections 10 is connected to the first section 9 by a link with a degree of freedom in translation, which comprises for example a sliding interlock 16, as more particularly shown on FIG. figure 12 . The slide fitting 16 of a second section 10 on the first 9 is for example made by a male-female interlocking of a male section with a domed profile, with an undercut in a female section of complementary profile, so that performing a sliding fit just or slightly tight, and a connection comprising a retention of the first and second sections on one another by an obstacle connection. Alternatively, the connection of the second sections on the first can be obtained by clipping or gluing.

Thus, the profiles 9 extend on the periphery of the edge 8 of each external substrate 3 of each panel 1 of the facade, so as to form, for each substrate, a frame surrounding it and allowing the recovery of the panel on the rigid frame via the second sections 10 which are distributed according to needs on this frame formed by the first sections 9, that is to say according to the dimensions of the panel, for example as shown, two second sections 10 per panel side.

The first and second profiles are preferably made of insulating material, for example plastic material in order to give the holding system according to the invention a connection of the panel, thermal break type between the outside and inside of the construction. The first sections 9, like the second sections 10 may preferably be made of polyamide or TPE (thermoplastic elastomer) or the like.

Alternatively, the second sections 10 could be in the form of a continuous profile on one or more sides of the panel 1, for example on the four sides thereof, like the first profiles 9.

It is possible to consider any complete connection between the first sections 9 and the second sections 10, whether continuous or discontinuous.

The retention link obtained with the first interface 6 in the cavity 4 is more particularly developed in the document WO 2006/054011 and advantageously has complementary undercut profiles in order to preferably obtain a connection of the first section 9 to the substrate 3 by obstacle. Obstacle link means as represented on the figures 3 , 4 , 1 , or 12 , a connection which presents an obstacle to the extraction of the protruding interface 6 from the retention cavity 4 in which it lies, in a direction different from the longitudinal direction of the first profile, in particular a perpendicular direction at this longitudinal direction and passing through the opening of the cavity. The connection between the retention cavity 4 and the first section 9 will be continuous on one side, and adjusted slippery or slightly tightened, or complete.

As shown in the example, the second sections 10 each adopt a shape substantially of L whose branch 17 is intended to be connected to the rigid frame 2, and whose other branch 18 is intended to be linked by its end free 19, the first section 9, for example through the sliding interlock 16, as explained above and more particularly shown on the figure 12 . In the example shown, the male part 19 of the sliding interlock is associated with the second section 10 and the female part or groove 20 of this interlock is associated with the first section 9.

The first sections 9 are joined to the four corners of the substrate 3 preferably by miter cuts and / or straight cuts, as shown in FIGS. figures 5 , 6 , and 7 . It should be noted that the longitudinal end or ends of the first profile 9 in the other figures may not be represented in a sectional cut, either for simplification of representation or because the profile has been cut and it is therefore not the end which is actually represented.

The first section 9 adopts, for example, a shape of substantially polygonal cross-section, of which a first face 21 comprises the first interface 6 in the form of a projection, and of which a second face 22, called the rear face, disposed substantially at right angles to the first face 21 , comprises connecting means 20 to the second sections 10, for example a groove 20. The polygonal section of the profile 9 may for example be rectangular, or trapezoidal, or other depending on the needs and in particular an outer seal as will be described further.

Each second profile 10 preferably comprises an oblong hole 23, on the branch 17 intended to be connected to the rigid frame 2, for the passage of a screw 24 or the like rigid fixing of the second section 10 on the frame, via the partition wall separating rabbets, as shown in figures 3 , 4 , and 10 . An oblong hole 24 extends in a direction perpendicular to the edge 8 of the panel 1 vis-à-vis which the second section 10 is mounted, and is placed in the middle of the second section 10, as shown in the figures. The oblong hole 24 essentially makes it possible to absorb manufacturing tolerances for the rigid framework 2.

It should be noted that, as shown in figures 3 and 4 , the second section 10 comprises a branch 18 which faces the edge 8 of the panel. The face 25 of this branch 18 may advantageously form an angle with the edge 8 of the panel, to allow some flexibility of the L to absorb any differential thermal expansion between the panel and the frame.

By complete connection of the panel 1 on the frame 2 is meant a connection which immobilizes the panel 1 on the frame 2 by removing any degree of freedom of the panel relative to the frame. This complete connection is obtained by the complete connecting means 5 including screws 24 or the like. These connecting means 5 comprise all of the second 10 and first 9 profiles necessary for the fixing of a panel 1. The complete connection nevertheless comprises a certain degree of elasticity due to the intervention of the bearing seal 11 of the panel on the frame, and also because of the bond conferred by the first and second profiles which should allow a differential expansion of the panel relative to the frame if necessary.

Fixing by screw or the like 24 on the partition wall 13 of the framework is a known type of attachment, for example between two walls constituting the wall 13 as shown, directly or via a nose section 27. The interface 7 formed by the rear face of the second section 10 bears against the nose of the framework itself constituted by the front end of the separating wall 13, as shown in FIGS. figures 3 and 4 .

The system advantageously further comprises a rigid safety element 26, intended to be fixed to the frame 2 by a complete connection, and comprising a male portion 28 free, adapted to be inserted into the retention cavity 4, the rigid element 26 along the length of the male portion 28 inserted in the cavity 4, with the first interface 6, in the form of a projection, connecting means 5 of the panel 1 to the frame 2, so as to participate in the protrusion retention connection in the retention cavity 4. This cooperation between the rigid security element 26 and the first interface 6 is, as more particularly shown on the figure 15 by the fact that the projection-shaped interface 6 is intended to come into contact with a first side of the cavity 4 and the security element 26 in contact on a first of its faces longitudinally with the interface 6 in the form of protrusion, is intended for its part to come into contact, by means of the second of its faces opposite to the first, with a second side of the cavity 4 opposite the first side thereof, so that in the As shown, the security element 26 locks on its length the interface 6 in the form of a projection in the cavity 4, for example by locking, in the example shown, said obstacle connection which had disappeared over the length of the security element due to the presence of the notch 34 as explained below. This security element 26 is not necessary for the active connection of the panel 1 to the frame 2; it is a passive security link, or redundant, whose function is to become active in case of deactivation of the link conferred by the connecting means 5 described above for any reason whatsoever.

• un voile central 29,
• un premier 30 voile d'extrémité, destiné à être fixé à l'ossature 2, solidaire d'un premier bord 32 longitudinal du voile central 29, et s'étendant dans une première direction perpendiculaire au voile central 29,
• un deuxième 31 voile d'extrémité, destiné à être inséré dans la cavité de rétention 4 du substrat 3, solidaire d'un deuxième 33 bord longitudinal du voile central 29, opposé au premier bord 32 longitudinal et s'étendant dans une deuxième direction perpendiculaire au voile central 29, opposée à la première direction, comme représenté plus particulièrement sur la figure 15.

The security element 26 advantageously adopts a form of one-piece profile, for example of stainless metal, preferably steel, the cross section of which comprises, for example:

• a central veil 29,
• a first end veil, intended to be fixed to the frame 2, integral with a first longitudinal edge 32 of the central veil 29, and extending in a first direction perpendicular to the central veil 29,
• a second end veil 31 intended to be inserted into the retention cavity 4 of the substrate 3, secured to a second longitudinal edge 33 of the central web 29, opposite the first longitudinal edge 32 and extending in a second direction perpendicular to the central web 29, opposite the first direction, as shown more particularly on the figure 15 .

The security element can be advantageously obtained from a plate of constant thickness, and bent as described above.

In order to be able to insert the free male part 28 of the security element 26 in the retention cavity 4, the first section 9 advantageously comprises a notch 34 of a determined length, intended to house a portion of the security element 26. , for example the second end veil 31 and a part of the central veil 29 as shown on the figures 14 and 15 . The length of the notch is greater than or substantially equal to the length of the security element, so that this security element is partially embedded in the first section, this for side-by-side mounting of the element 26 and the first profile 9 in the substrate 3.

Thus, in the example shown, the notch 34 made partly in the projection of the interface 6 in a longitudinal manner, will allow the juxtaposed insertion of the male portion 28 of the security element and the remaining part of the protrusion 6 after completion of the notch 34, as shown on the figure 15 .

As shown on the figure 16 , the security element 26 can be first mounted in the notch 34 of the first section, then the first section and the attached security element can be slidably inserted in the retention cavity 4 by a longitudinal end of the here, following a translational movement in the direction 44.

The first end veil 30 of the security element 26 comprises, for example, at least one fixing hole 45 on the rigid framework 2, by means of at least one screw 46 or the like, as shown in FIGS. figures 13 , 15 or 16 . The screw or screws 46 or the like are preferably engaged in the partition wall 13 of the framework in a manner similar to that of the fastening screws 24 of the second sections 10.

Each panel 1 will preferably comprise two security elements 26 respectively disposed on the two vertical edges of each panel 1. A panel 1 being in lower support on the frame 2 by gravity, as explained hereinafter, the security element 26 Its essential function is to prevent the tilting of the panel in case of failure of the main attachment provided by the first and second profiles and screws 24 or the like.

• des moyens de joint externe 35 entrant dans la constitution d'une liaison entre les deux bords rectilignes en vis-à-vis de deux côtés adjacents de deux panneaux 1 adjacents, sur la façade d'une construction, chacun des deux panneaux 1 comportant un substrat 3 réalisé en matériau fragile de type verre,
• des moyens d'association 36 des moyens de joint externe 35 aux moyens de liaison 5 respectifs de deux côtés adjacents des deux panneaux 1 adjacents, à l'ossature 2.

The system according to the invention, as represented on the Figures 1 to 4 further advantageously comprises:

• external joint means 35 forming a connection between the two straight edges facing two adjacent sides of two adjacent panels 1, on the facade of a construction, each of the two panels 1 comprising a substrate 3 made of glass-type fragile material,
• associating means 36 of the outer seal means 35 to the respective connecting means 5 of two adjacent sides of the two adjacent panels 1, to the frame 2.

The outer joint means 35 have the main function of participating in the creation of a barrier between the exterior of the facade and the interior, more particularly between the outside and the housing rebates of the panels 1, and in particular a barrier thermal. For this purpose, the outer seal 35 will preferably be made of an insulating material, for example polyamide or the like.

The outer seal means 35 also function to create a seal to prevent air, water and wind from entering the rabbet. Another function of the outer seal means 35 is to confer on the facade a particular aesthetic sought, by the visible outer face 37 of the outer seal means 35.

The outer seal means 35 may for example be in the form of a rod obtained from a profile, adopting the shape of a plate 38 joining the two edges of the two adjacent sides of two adjacent panels 1, of which the inner face 39 is advantageously arranged in abutment on the first two sections 9, vis-à-vis, respective connection to the frame, each of two adjacent sides of two adjacent panels 1. The longitudinal edges of the rod may come into contact with the edges of the substrates 3 of the adjacent panels 1 having the retention cavities, but preferably, a clearance will exist to allow differential expansion of the panels 1 of the facade and the frame 2 The inner face 39 of the joining plate 38 may advantageously bear on one, 40, faces of the polygon formed by each of the two first profiles 9 on which it is based. This bearing face 40, called the front face, may be the face of the polygon, adjacent to that 21, comprising the interface 6, as shown in FIGS. figures 3 or 4 , and who does so facing the outside of the building. In the example shown, the plate 38 has a curved cross section, of substantially constant thickness, the concave face 37 is facing outwards, and the convex face inwardly. In order to optimize the contact between the plate 38 and the profiles 9, and to follow the curvature of this plate, the support surface 40 of the profiles 9 has a non-zero angle of inclination with the plane of the facade or substrates 3, as shown on the figures 3 or 4 . The outer face 37 thus has a transversely concave connection between two adjacent edges of adjacent panels. Any other form of connection may be considered according to aesthetic choices or constraints, and the system according to the invention advantageously allows an alignment of the outer surface 37 of the joining plate 38 with the outer surfaces of the substrates 3.

As shown on figures 1 and 2 , the outer surface 37 of the joining plate 38 may be ribbed or striated according to any desired aesthetic considerations.

The plate 38 advantageously comprises means of association 36 with the connecting means 5 on both sides of the two panels adjacent to the frame 2, which comprise an elastic structure 41 acting by elastic deformation, this elastic structure 41 being able to be inserted between the respective connecting means 5 of the two adjacent sides of two adjacent panels 1, to the rigid frame 2. More specifically, this elastic structure 41 is advantageously provided to be clipped by elastic deformation between the two lateral faces 42 vis-à- screws of the two sections 9 vis-à-vis connection of two edges juxtaposed two juxtaposed panels.

The elastic structure 41 consists, for example, of longitudinally elongated ribs substantially in longitudinal cylindrical shape with a polygonal transverse cross-section which is deformable in the transverse direction, comprising at two opposite transverse ends of the polygonal section two hooks 43 able to come to relax by elastic return behind. the first two sections 9, respectively, in order to maintain the plate 38, by a complete connection, on the rigid frame 2. More precisely and advantageously, the two hooks 43 come respectively, after relaxation, when the plate 38 is in place on the front, bear on the rear faces of the profiles 9, which carry the two grooves 20 interlocking of the two sections 10, respectively. The polygonal section of the elastic structure is attached to the rear face 39 of the plate 38, for example monoblock with it so that the plate and the elastic structure 41 advantageously form one and the same profile, as shown on the figures 3 and 4 . It should be noted that any form of elastic structure that makes it possible to associate the outer joint plate with the framework may be suitable, preferably via the profiles 9.

It should be noted that the elastic structure 41 in closed polygonal shape, allows to form a cavity 46 with a thermal barrier function contributing to a good quality of thermal insulation of the system according to the invention. In addition, the clipping system of the plate 38 joined to the elastic structure 41 makes it possible to form other cells located between the elastic structure, the profiles 9 and the plate 38, as shown in FIGS. figures 3 or 4 , also contributing to the achievement of a good thermal barrier of the frontal assembly constituted by these elements. Finally, the elastic structure advantageously makes it possible to absorb differential expansions while guaranteeing the connection of the plate 38 to the framework.

The outer seal means 35 thus comprise bearing means 39 on two first sections 9 facing each other relative to the frame 2, of each of the two adjacent sides of two adjacent panels 1, capable of cooperating with the elastic structure 41 to form a complete connection of the outer seal means 35 to the frame 2. For this purpose, a first section 9 is sandwiched between the inner face 39 of the plate 38 and the hooks 43 of the elastic structure 41.

• au moins une cale 50 d'appui inférieur d'un panneau 1 comportant un substrat 3 réalisé en matériau fragile de type verre, par exemple deux cales 50 par panneau 1,
• des moyens d'association 51 de chaque cale d'appui 50 au panneau 1 comportant un substrat 3 réalisé en matériau fragile de type verre.
• des moyens de support 52 de chaque cale d'appui 50, coopérant avec chaque cale en vue d'un pré-positionnement du panneau 1 par rapport à l'ossature 2,
• des moyens de fixation 53 des moyens de support 52 de chaque cale d'appui 50, à l'ossature 2.

Referring now more specifically to figures 5 , and 7 at 9 , the system shown advantageously furthermore comprises:

• at least one lower support block 50 of a panel 1 comprising a substrate 3 made of glass-type fragile material, for example two shims 50 per panel 1,
• association means 51 of each support block 50 to the panel 1 comprising a substrate 3 made of glass-type fragile material.
• support means 52 of each support wedge 50, cooperating with each wedge for the purpose of pre-positioning the panel 1 with respect to the framework 2,
• fixing means 53 of the support means 52 of each support block 50, to the frame 2.

A lower support shim 50 is advantageously in the form of a profile, for example an insulating material such as a plastic material or the like, cut into a plurality of segments 50, each segment forming a lower support block for a panel 1.

The means for associating a bearing block 50 with a panel advantageously comprise a longitudinal projection adapted to be inserted in the groove 20 for retaining the first profile 9 at a location where a second profile 10 is not present. , for example as represented on the figure 5 . The bearing block (s) 50, and the second section (s) 10, will thus advantageously and usefully be distributed on the underside of the panel so as to provide the support by gravity of the panel, and the retention connection on the lower side of the panel. this one to the frame 2.

For example, the support wedge will be provided on the longitudinal edge thereof to be bonded to the first profile 9, a male portion 55 forming the longitudinal projection, similar to the male portion 16 described above the second section 10 also intended to be inserted into the groove 20. The connection of a support block 50 to the first section 9 may be identical to that described above of the second segmented section to the same first profile 9.

A support wedge 50 advantageously has a longitudinal engagement means, for example a longitudinal rib 56, in the support means 52 of each support block 50.

For this purpose, the support means 52 of a support block 50 preferably adopt a profile shape advantageously comprising a longitudinal groove 57, said pre-positioning of the panel 1 relative to said framework, adapted to house the rib longitudinal 56 of the support block 50. The support means 52 may be made from a metal sectioned section length of each shim 50, for example as shown in FIG. figure 11 .

Each support means 52 is fixed to a cross member of the rigid framework for example by means of one or more screws 58 or the like, as shown in FIG. figure 11 in a manner analogous to the attachment of the security element 26 for example, either on the separating wall 13 of the framework 2. The groove 57 on a support means, and the corresponding rib 56 on a shim 50, will be positioned so that the panel 1 is pre-positioned in the correct position relative to the frame when the panel is placed, equipped with its shims 50, bearing on the support means 52. The support means 52 may comprise a longitudinal ledge 59 raised that comes placed behind a rib 60 of the frame 2 serving to fix the gasket 11, as shown in FIG. figure 3 .

• chaque panneau 1 est équipé des quatre profilés 9 tout autour du substrat 3 du panneau 1,
• conjointement à la mise en place des profilés 9, les éléments de sécurité 26 sont insérés dans les échancrures 34 des profilés 9 et insérés dans les cavités de rétention 4,
• chaque panneau 1 est équipé des deuxièmes profilés 10, avant la mise en place des premiers profilés 9 sur le panneau ou après, mais dans ce dernier cas, par côté de panneau afin de pouvoir les insérer par les extrémités longitudinales des rainures 20 des premiers profilés 9,
• les moyens de support 52 des cales d'appui 50 sont fixés sur l'ossature rigide 2, par l'intermédiaire des vis 58 ou analogue,
• chaque panneau 1 ainsi équipé des premiers profilés 9, des éléments de sécurité 26, des cales d'appui 50, et des deuxièmes profilés 10 est posé sur l'ossature dans son encadrement formé par la feuillure de l'ossature, périphérique à chaque panneau, avantageusement en appui sur les moyens de support 52, ce qui provoque un pré-positionnement du panneau 1 par rapport à l'ossature 2 au niveau du côté inférieur de celui-ci,
• un opérateur met ensuite en place les vis 24 ou analogue de fixation des deuxièmes profilés 10, les vis 46 ou analogue de fixation des éléments de sécurité 26, pour chaque panneau afin de procéder à la liaison complète du panneau 1 sur l'ossature 2, cette liaison complète comportant en outre avantageusement une liaison de sécurité du panneau 1 apte à agir en cas de défaillance de la liaison principale,
• tous les panneaux 1 d'une façade sont avantageusement liés de la même manière à l'ossature,
• lorsque plusieurs panneaux 1 adjacents ont été mis en place et fixés à l'ossature 2, les joints externes 35 sont clippés afin de garantir l'étanchéité à l'air, à l'eau et au vent du système de maintien des panneaux et l'isolation thermique.

The maintenance system represented is implemented for example as follows:

• each panel 1 is equipped with the four sections 9 all around the substrate 3 of the panel 1,
• together with the introduction of the profiles 9, the security elements 26 are inserted into the notches 34 of the profiles 9 and inserted into the retention cavities 4,
• each panel 1 is equipped with the second sections 10, before the introduction of the first sections 9 on the panel or after, but in the latter case, by panel side so as to be able to insert them by the longitudinal ends of the grooves 20 of the first sections 9
• the support means 52 of the support blocks 50 are fixed to the rigid framework 2, by means of the screws 58 or the like,
• each panel 1 thus equipped with the first profiles 9, safety elements 26, support blocks 50, and second sections 10 is placed on the frame in its frame formed by the groove of the frame, peripheral to each panel , advantageously resting on the support means 52, which causes a pre-positioning of the panel 1 relative to the frame 2 at the lower side thereof,
• an operator then sets up the screws 24 or the like fastening the second sections 10, the screws 46 or the similar fixing of the security elements 26, for each panel in order to complete the connection of the panel 1 to the frame 2, this complete link furthermore advantageously comprises a safety link of the panel 1 able to act in the event of failure of the main link,
• all panels 1 of a facade are advantageously connected in the same way to the framework,
• when several adjacent panels 1 have been put in place and fixed to the frame 2, the outer seals 35 are clipped in order to guarantee the air, water and windtightness of the system for holding the panels and the 'thermal insulation.

It should be noted that a system of mixed maintenance of the panels of a facade can be envisaged, combining for each of the panels of the facade, a maintenance traditional and a maintenance according to the invention. For example, a system combining a traditional attachment of the panels 1 on the vertical uprights of the rigid frame 2, or a sandwich fixing opposite sides of the panel as explained in the state of the art described at the beginning of this document , and a fastener according to the invention by retention cavity formed in the substrate of the panels on the horizontal cross members of the framework.

It should also be noted that in the above case, for example, a panel substrate advantageously comprises only two retention grooves 4 on the two upper and lower horizontal edges of the panel.

Claims (27)

1. System for holding a panel (1) on a rigid framework (2), by means of a fully restrained connection, especially on the facade of a building,

   - said panel comprising at least one substrate (3) made from fragile glass-type material,

   - said substrate having a retaining cavity (4) located on a surface portion of said substrate,

   - the holding system having:

   - means (5) for fully restrained connection of said panel to said framework via said single substrate, or a single one of said substrates, and via said retaining cavity (4), which comprise:

   - a first interface (6), in the form of a projection, lodged in said retaining cavity in said substrate so as to form, together with the cavity, a connection retaining said projection in said cavity,

   - a second, contact interface (7) associated with said framework,

   - said retaining cavity (4) extending at least over the length or substantially over the length of a first side of said substrate (3),

   - the holding system being characterised in that

   - said first interface (6), in the form of a projection, extends at least over the length or substantially over the length of a first side of said substrate (3) and is carried by a first profiled member (9) which extends over the length or substantially over the length of the first side of the substrate (3), and

   - the second interface ensuring a connection between the first profiled member and the framework.
2. System according to claim 1, characterised in that said retaining cavity (4) is located on a surface portion situated on an edge (8) of said substrate and formed within said edge.
3. System according to claim 1 or 2, characterised in that said first interface (6), in the form of a projection, ensures sealing against fluids when it co-operates with said retaining cavity (4) so as to form, together with the latter, a retaining connection that seals against fluids.
4. System according to any one of claims 1 to 3, characterised in that said connection retaining said projection in said cavity has complementary undercut contours between the projection and the cavity in order to obtain a connection of the first profiled member to said substrate by interlocking.
5. System according to any one of claims 1 to 4, characterised in that it additionally comprises a rigid safety element (26) provided for fixing to said framework (2) by a fully restrained connection and having a free male part (28) arranged to be inserted in said retaining cavity (4), said rigid safety element co-operating, over the length of the male part inserted in the cavity, with said first interface (6), in the form of a projection, of said means (5) for connection of said panel (1) to said framework (2) so as to participate in the connection retaining said projection in said cavity.
6. System according to any one of claims 1 to 5, characterised in that said second, contact interface (7) arranged to be associated with said framework (2) has a plurality of discontinuous contact segments (15) each arranged to bear against said framework and to be connected to the latter.
7. System according to any one of claims 1 to 6, characterised in that said connecting means (5) comprise, at least:

   - a first profiled member (9) carrying said first interface (6), in the form of a projection, and

   - a plurality of second profiled members (10) connected to said first profiled member and comprising said second, contact interface (7).
8. System according to claim 7, characterised in that said plurality of second profiled members (10) are connected to said first profiled member (9) by a connection having one degree of freedom in translation.
9. System according to claim 8, characterised in that said connection having one degree of freedom in translation comprises a slideway fitting (16).
10. System according to claim 7, characterised in that said plurality of second profiled members (10) are connected to said first profiled member (9) by a fully restrained connection.
11. System according to any one of claims 7 to 10, characterised in that said second profiled members (10) are each substantially in the shape of an L, one limb (17) of which is connected to the framework (2) and the other limb (18) of which is connected, at its free end (19), to said first profiled member (9).
12. System according to any one of claims 7 to 11, characterised in that said first profiled member (9) has a shape which is substantially polygonal in cross-section, a first face (21) of which comprises said first interface (6), in the form of a projection, and a second face (22) of which, referred to as the rear face, arranged substantially at a right angle to said first face, comprises means (20) for connecting to said second profiled members (10).
13. System according to claims 5 and 6, characterised in that said first profiled member (9) has a cut-away (34) of a predetermined length arranged to lodge part of said safety element (26).
14. System according to claim 5 or 13, characterised in that a said safety element (26) is in the form of a one-piece profiled member, the cross-section of which comprises:

    - a central web (29),

    - a first end web (30), which is arranged to be fixed to the framework (2) and is joined to a first longitudinal edge (32) of said central web and extends in a first perpendicular direction relative to said central web,

    - a second end web (31), which is arranged to be inserted in said retaining cavity (4) in the substrate (3) and is joined to a second longitudinal edge (33) of said central web, opposite the first longitudinal edge, and extends in a second perpendicular direction relative to the central web, opposite the first direction,
15. System according to claims 13 and 14, characterised in that said part of the safety element (26) which is lodged in the cut-away (34) in the first profiled member (9) comprises the second end web (31) and part of the central web (29).
16. System according to any one of claims 1 to 15, characterised in that said retaining cavity (4) extends over the length of the four sides of the substrate (3), and in that said first interface (6), in the form of a projection, extends over the length of said four sides of the substrate.
17. System according to claim 16, characterised in that said second, contact interface (7) arranged to be associated with said framework (2) has a plurality of discontinuous contact segments (15) distributed over the four sides of the substrate (3), each of which is arranged to bear against said framework and to be associated with the latter.
18. System according to any one of claims 1 to 17, characterised in that it comprises:

    - external sealing means (35) entering into the formation of a connection between the two rectilinear edges facing one another on two adjacent sides of two adjacent panels (1) on said facade of a building, each of the two panels comprising at least one substrate (3) made of fragile glass-type material,

    - means (36) associating said external sealing means with the respective means connecting said two adjacent sides of said two adjacent panels to said framework (2).
19. System according to claim 18, characterised in that said means (36) associating said external sealing means (35) with the means (5) connecting said two adjacent sides of said two adjacent panels (1) to said framework (2) comprise an elastic structure (41) acting by elastic deformation, said elastic structure being arranged to be inserted between said means respectively connecting said two adjacent sides of said two adjacent panels to said framework.
20. System according to claims 7 and 19, characterised in that the external sealing means (35) have means (39) for bearing against two first profiled members (9) facing one another for respectively connecting to said framework (2), on each of said two adjacent sides of said two adjacent panels (1), which are arranged to co-operate with said elastic structure (41) in order to form a fully restrained connection of said external sealing means (35) to said framework (2).
21. System according to claims 12 and 20, characterised in that said bearing means (39) have a first bearing against a face (40), referred to as the front face, of said two first profiled members (9) having a shape which is polygonal in cross-section.
22. System according to claims 12 and 21, characterised in that said elastic structure (41) co-operates with a second face (22), referred to as the rear face, of said two first profiled members (9) having a shape which is polygonal in cross-section.
23. System according to any one of claims 1 to 22, characterised in that it additionally comprises:

    - at least one lower bearing block (50) for a panel comprising a substrate made from fragile glass-type material,

    - means (51) associating said bearing block (50) with said panel (1) comprising a substrate (3) made from fragile glass-type material.
24. System according to claim 23, characterised in that said means (51) associating said bearing block (50) with said panel (1) co-operate with said means (5) connecting said panel to said framework (2).
25. System according to claims 7 and 23, or 7 and 24, characterised in that said means (51) associating said bearing block (50) with said panel (1) comprise a connection of the lower bearing block to said first profiled member (9).
26. System according to one of claims 23 to 25, characterised in that it additionally comprises:

    - means (52) for support of said bearing block, co-operating with the latter for the purpose of pre-positioning of the panel with respect to said framework (2),

    - means (53) fixing said support means of the bearing block (50) to said framework (2).
27. System according to claim 26, characterised in that said support means (52) of said bearing block (50) are in the form of a profiled member having at least one groove (57) for pre-positioning of the panel (1) with respect to said framework (2), via said lower bearing block (50).

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