EP1589182A1 - Fixing device for glass panels on building facades - Google Patents

Abstract

The device has parallelepiped bodies with two cylindrical slots (12) for engaging cylindrical bodies (24, 34) of two pairs of arms. The slots are opened by slits (13) having transversal length to permit rotation of the bodies (24, 34) and arms around a rotation axis. The bodies (24, 34) are supported by a support unit with an adjusting screw to longitudinally displace the bodies (24, 34) in the slots and fix them in a specific position.

Description

The present invention relates to a new and particular device used to fix on a suitable support structure made on a relative building facade, plates of glass and / or other suitable materials. As we know, the realization of facades buildings that are completely covered, or at least largely, with glass plates, are spreading more and more in the field of building architecture.

As is also known, very varied systems for fixing such plates have been carried out on relative support structures placed in the relative facades of buildings to to dress with these. One of these systems known and used for a long time the use of a particular device consisting essentially of a metal plate suitably shaped which can then be fixed with adequate means known per se to the support structure made on a relative facade, on which plate is further fixed a particular element of which extend radially with specular symmetry and being diverging from the vertical and horizontal axes of the application structure and therefore also between them, four arms at the ends of which are fixed in relative holes oblong or cylindrical, ball joints engaging respective holes made near the angles of four adjacent glass plates adjacent to each other. Normally, in the full version of four arms, two oblong holes are made at Relative arm ends, which during application are turned down and two holes Cylinders are instead carried out at the ends of the arms which during application are turned up. In said two oblong holes, the relative slots have a width equal to the diameter of the rods of said ball joints which will be inserted into them and extend horizontally on a slightly longer length, in practice equal to the diameter of the two other cylindrical holes. As a result, the above-mentioned oblong holes make it possible to vary only horizontally the attachment points of the rods of the articulated joints that one used in the latter, thus making it possible to compensate for any differences in positions with the holes made in the upper part of the glass plates which, as we know, are therefore practically suspended only by their upper parts relative devices application. Said cylindrical holes will allow on the contrary to vary either horizontally, vertically, the fixing positions of the relative ball joints, thus making it possible to adapt the position of the respective fixing points to the positions of the holes made in the lower part of the aforementioned glass plate. It is clear that for the realization facades with such a system, use will be made of a plurality of the aforementioned devices of the complete type, that is to say provided with only four arms to achieve the fixation of the plates forming the inner part of the surface of the facade, while for fixing the plates lying along side edges of the entire facade, we will use elements with only two arms and finally, in the case of fixations of angles of plates respectively corresponding to external angles or internal angles of relative portions of coating surfaces of said facades, one-armed or three-armed elements will be used respectively.

The conformation, in particular of the complete device, that is to say with four arms, makes one think to a spider, or better, to the conformation of a spider so that the system and / or device are known as "spider-glass" and the particular ball joints made of suitable spherical joints which are fixed in the holes made on the plates of glass to apply, are known as "rotul". As we know, joints with aforementioned patella have been developed and require to allow the glass plate, once applied, to deform even slightly without undergoing stresses in the fixing holes which would cause it to break. Such an application system because it allows to support with the aforementioned device the different rectangular glass plates of a coating on four holes made in them at four respective places near their four corners, as we know, is generically defined under the name of "sistema puntiforme" (in French "point system"), hence also the name "facciate puntiformi" (in French "point façades").

At first, the device used in the glass plate support system recalled above consisted of an element comprising an attachment plate to the support structure made on the facade to be coated and a plurality of elements provided with groups of fixing arms of the glass plate. Such a plurality of elements provided with said groups of arms, in the case of the complete conformation usable as explained above to make fastenings in the inner part of the surface of the facade, foresaw the presence of four arms extending, as exposed above, radially as well as with mirror symmetry and being divergent by horizontal and vertical axes of application and thus also between them, in addition, the two upper arms were provided with cylindrical holes and the two lower ones with oblong holes. To complete all subsequent possible arrangements, ie those on the perimeter of the facade and those in the corners of the parts of it, so we need for a large number of subsequent conformations each comprising a number of lower arm and precisely: four conformations with three arms (that is, for clarity: two "rights" with a "lower left", two "rights" with an "upper left", two "Left" with a "superior right", two "left" with a "lower right"), four conformations to only two arms and finally, four conformations to a single arm.

From what has been stated, it is obvious that the device described above, given that it must be produced in at least a large number of different configurations and the fact that in a first known solution is obtained by die casting, it involves the use of an equivalent number of mussels and consequently its production is clearly expensive. Other solutions involving the use of a reduced number of molds, for example, only those producing the only basic conformations that are anyway necessary as minimum, require, in addition to the use of a large number of molds, also the execution of successive mechanical operations more or less elaborate, so that they imply an overall cost of production always considerably high.

Even worse is the solution that provides for the realization of a single complete basic element to four arms and to remove, by means of appropriate mechanical operations, the useless arms. AT share the difficulty and complexity of realization involving not only the use of machine tools appropriate and relative transaction durations which obviously have an overall significant impact on the cost of production, the final aesthetic appearance is very debatable.

Moreover, in these first solutions, the device used does not allow any adjustment, even minimal, of its positioning on the application structure and the only possibilities of adjusting the only attachment points on the respective arms of the ball joints that engage in the fixing holes of the glass plate, are extremely limited and allow in practice only the adaptations necessary to correct in a limited way the only light dimensional differences between the part attached to the support structure applied to the facade, and the holes made in the glass plates to fix on the facade.

All known initial solutions have significant limitations applications, with the known normal devices, even in their most evolved, it is possible to achieve only flat facades, that is to say with a coating obtained with a plurality of glass plates perfectly coplanar with each other. It's only by exploiting the limited possibility of laterally tilting the axis of applied ball joints fasteners which, as mentioned, are inserted and fixed in the holes made close to the angles of the glass plates, it is possible to obtain a small inclination between the adjacent plate planes, thus making it possible to obtain surfaces that are generally not are only slightly arched, so with obviously important radii of curvature. he Moreover, it appears that by using, as explained above, such a limited possibility tilting the axes of the ball joints, we always reduce more or less important, the remaining possibility of inclination that these may present, it is clear that it can then clearly occur situations or better, conditions, critical use even dangerous.

It is therefore not possible at all to achieve any conformations arched with limited radii of curvature and even fewer conformations that develop on contiguous planes that are noticeably inclined relative to each other, convergent manner, either diverging outwards, it is also not possible to ability to vary amply with a single device tune the angle of convergence or divergence formed between contiguous plates. It is observed that in all the known solutions, it is not even possible to move vertically the position of only the support arms of plate to correct for possible misalignment existing for various reasons between adjacent plate hanging holes, which can often create inconveniences sometimes even important.

The initial solutions described above are followed by a small improvement obtained with a later well-known and little-spread solution that is only partially described in patent No. ...... filed in Italy on ...... Such a solution provides for the realization of a reduced number of sections which, cut transversely in an appropriate manner, form with the pieces thus obtained, respectively two types of application boards and three additional elements, one of which has two arms respectively carrying a cylindrical hole and one oblong hole, and the other two, on the contrary, have only one arm provided, respectively, with one of a cylindrical hole and the other of an oblong hole. A first type of application plates mentioned above is obtained from a symmetrical cross section profile shaped to allow the application and attachment on its two sides of two additional elements to two arm or on one side, an additional element with two arms, and on the other side, an element additional to a single arm, and a second type is obtained from an asymmetrical section which allows the application, only on one of its flanks, of an additional element with two arms or one arm. It is thus possible, by combining in various ways between them the various above-mentioned elements (the two application plates and the three additional elements applied on them), to obtain the overall four-armed structure as well as reduced ones comprising three, two and one arm.

This last solution might seem very economical from the point of view of the productivity, because it only requires the use of a very small number of metal that can be easily extruded using a number corresponding very small matrix, to the limit, as has been stated above, only five dies, unlike many die casting or die casting molds used in other solutions. However, it requires, in addition to a moderate amount of operations assembly of various constituent elements, also the use of special machine tools and expensive to perform the many and slightly complex mechanical operations that obviously require the intervention of qualified personnel and the relative duration of operation costly. Moreover, this last solution also allows the realization of facades with totally or partially arched surfaces or with parts that are considerably mutually convergent or divergent between them. Such an execution possibility, which is not however in any way contemplated in the aforementioned relative patent, was only and simply performed in a few limited applications. It still plans to elaborate the said three additional elements by always cutting them transversely, but in an inclined manner appropriate manner, and then perform an adequate removal of their excess parts, in order to conform the resulting arms intended for the support of the glass plates, so that, as mentioned above, the glass plates supported by them and related, are so appropriate mutually convergent or divergent between them according to angles predetermined, fixed and invariable. It is clear that this subsequent necessary operation subsequently a significant impact on the overall cost of production.

It is clear and evident from the foregoing that the latter solution also, even if it allows certain advantageous application possibilities, it turns out overall expensive and of a complex realization, moreover, it has a limitation noticeable due to the fact that, for each type of realization which requires an angle convergence between contiguous plates, it is only necessary to always produce a corresponding number of equally specific pieces of respective types of additional elements required. In fact, parts of a type that can be used for an embodiment can not in any way to be used for implementations requiring angles of convergence between contiguous plates different from those of the embodiment for which such parts were performed.

The object of the present invention is to remedy the limitations and disadvantages mentioned above and this is achieved by means of the new device in question, according to which all the metal suspension arms of the glass plates which are substantially shaped so similar to those of known devices, instead of being distinguished by a consistent relative element of suitable manner detachably fixable to a respective application pad by means of additional elements releasably fixable on both sides of a wafer of relative application fixable as usual to the amount of the usual support structure made on the relative facade to be coated, are distinguished by a shaped plate so suitable in turn, with suitable cylindrical bodies which can be inserted sliding in two relative cylindrical grooves, parallel to one another and likewise diameter, made in a suitable metal element obtained from an extruded profile relative to such a metal element constituting in practice a fixable application plate, way and with means known per se, to an amount of the support metal structure normally made on the facade to be coated, said cylindrical grooves being both appropriately open with a longitudinal slot extending circumferential sufficiently smaller than their diameter to prevent the exit of the bodies cylindrical inserted in them and at the same time appropriately larger than the thickness cross-section of said shaped plate carrying the relative support arms of the plates of glass, so as to allow a relatively large rotation of the latter and thus arms relative, around the resulting axes of articulation.

• la figure 1 est en vue de face du dispositif en question en entier, appliqué sur un montant d'une structure relative de support réalisée sur une façade d'un bâtiment et disposé dans la position utilisée pour réaliser des revêtements avec des plaques de verre disposées de façon coplanaire entre elles ;
• la figure 2 est une vue en plan du dispositif de la figure 1;
• la figure 3 est une vue équivalente à celle de la figure 2, montrant le positionnement des plaques de verre supportées par le dispositif en question, disposées dans les deux positions extrêmes de convergence mutuelle, réalisables avec un tel dispositif ;
• la figure 4 est une vue de dessus similaire à celle des figures précédentes 2 et 3, montrant l'utilisation des deux dispositifs du type en question disposés de façon à permettre de réaliser une disposition dans laquelle les plaques de verre sont disposées divergentes orthogonalement entre elles vers l'extérieur ;
• la figure 5 est une vue en perspective du dispositif en question en entier, appliqué à un montant relatif de la structure de support d'une façade d'un bâtiment ;
• la figure 6 est une vue en perspective éclatée montrant la conformation des divers éléments constituant le dispositif en entier représenté sur la figure 5 ; et enfin
• la figure 7 est une vue également en perspective éclatée montrant une amélioration particulière que l'on peut obtenir simplement en coupant transversalement en deux moitiés, les deux groupes de paires de bras de support des plaques de verre prévus dans le dispositif en question.

Dans les figures précitées, les pièces communes sont désignées par les mêmes références, en outre, on notera que sur la figure 1, par souci de clarté, les parties des bords du périmètre des zones se situant dans les angles des quatre plaques de verre qui sont concernées par les points de support du dispositif en question sont indiquées de façon simplifiée par de fines hachures.
En se référant d'abord en particulier aux figures 1, 2, 5 et 6, on note que le dispositif D en entier qui va être décrit et qui par souci de clarté, est indiqué dans les figures d'un trait fort, n'est constitué globalement que de cinq composants et précisément, d'un élément d'application 1, de deux groupes 2 et 3 portant des paires respectives de bras 21a, 21b et 31a, 31b pour le support des plaques de verre L et deux éléments de support et réglage 4 desdits groupes 2 et 3. La conformation particulière, l'application ainsi que la fonction de ces composants vont être décrites ci-après.
Ledit élément d'application 1 est constitué par un morceau de longueur appropriée, obtenu à partir d'un profilé particulier extrudé 11 constitué d'un métal ou alliage métallique adéquat et présente la conformation particulière qui est décrite en détail ci-après.
En substance, un tel profilé extrudé 11 est défini fondamentalement par un corps de section rectangulaire dont un grand côté forme la surface plane arrière, dimensionnée et conformée de façon complémentaire à la surface d'application 51 du tube métallique constituant le montant 5 sur lequel ledit élément d'application 1 est fixé par des moyens adéquats connus, tels que des vis normales, des rivets, etc. Comme on peut le noter clairement en particulier sur les figures 5, 6 et 7 et encore plus en détail sur la figure 4, dans le corps de section sensiblement rectangulaire définissant un tel profilé extrudé 11, sont formées longitudinalement par rapport à ce dernier, deux cannelures cylindriques 12 parallèles l'une à l'autre, qui, comme cela est clairement visible sur la figure 4, sont interrompues par des segments T formant des fentes respectives 13 débouchant dans la partie avant dudit profilé extrudé 11. Il est clair, comme cela sera exposé ci-dessus, que la largeur T de telles fentes 13 sera inférieure de façon appropriée au diamètre des cannelures cylindriques relatives 12. Dans la partie opposée auxdites fentes 13, les deux cannelures cylindriques respectives 12 se raccordent au moyen de fentes appropriées 15 à deux cannelures rectangulaires 14 correspondantes disposées avec leurs grands côtés parallèles aux grands côtés correspondants dudit profilé extrudé 11. La largeur des fentes 15 reliant les cannelures cylindriques 12 aux cannelures rectangulaires respectives 14, dont la fonction sera expliquée ci-après, est légèrement inférieure soit au diamètre desdites cannelures cylindriques 12, soit à la longueur des grands côtés de ces dernières (14).
Les deux groupes 2 et 3 de paires de bras 21a-21b et 31a-31b, comme on peut le voir clairement sur les figures 1 à 6 et en particulier sur les figures 5 et 6, sont formés de deux éléments qui de par leur forme ont une symétrie spéculaire l'un avec l'autre. On notera que de tels éléments peuvent être obtenus de préférence par moulage sous pression et/ou au moyen d'autres procédés technologiques nouveaux applicables à des métaux adéquats ou des alliages relatifs tels qu'en particulier l'aluminium et ses nouveaux alliages spéciaux. Pour résumer, le groupe 2 qui dans l'application sera appliqué à la gauche du dispositif D entier vue de face, est constitué par une plaquette 20 de forme sensiblement rectangulaire qui s'étend radialement depuis un corps cylindrique relatif 24 avec un premier segment 201, qui dans la disposition fondamentale clairement représentée sur la figure 2, c'est-à-dire celle relative à l'application de plaques de verre L coplanaires entre elles, est dirigé orthogonalement au plan défini par celle-ci (L) et se prolonge ensuite par un second segment arqué 202 qui se termine orthogonalement au précédent (201) et donc parallèle au plan des plaques de verre L. Un tel corps cylindrique 24 présente un diamètre supérieur de façon appropriée à l'épaisseur de ladite plaquette 20 (en pratique, au moins légèrement supérieur au double d'une telle épaisseur) et de toute façon égal au diamètre interne des cannelures cylindriques 12 précitées formées dans le corps dudit élément d'application 1. Des parties supérieure et inférieure dudit second segment 202 de ladite plaquette 2 s'étendent enfin vers l'extérieur en étant inclinés respectivement vers le haut et vers le bas, un bras supérieur 21a et un bras inférieur 21b, lesquels se terminent par des éléments cylindriques respectifs, supérieur 22a et inférieur 22b. De tels bras, supérieur 21a et inférieur 21b, ainsi que les éléments cylindriques relatifs supérieur 22a et inférieur 22b présentent tous une épaisseur égale à celle de la plaquette précitée 20. Enfin, pour des raisons connues, l'élément cylindrique supérieur 22a, du bras supérieur relatif 21a, sera pourvu coaxialement d'un trou cylindrique 23a présentant un diamètre supérieur de façon appropriée à celui de la tige d'application de l'élément relatif à rotule 50 (voir figures 2, 3 et 4) qui, comme on le sait, sera inséré et fixé dans un trou relatif d'une plaque de verre L à supporter, et l'élément cylindrique inférieur 22b sera au contraire pourvu d'un trou oblong 23b présentant une largeur égale au diamètre de la tige d'application de l'élément à rotule 50 relatif et une longueur légèrement supérieure, en pratique égale au diamètre du trou cylindrique 23a précité. Evidemment, le groupe 3, étant donné que, comme on l'a déjà dit et comme cela apparaít clairement sur toutes les figures mentionnées, a une symétrie spéculaire avec le groupe 2 décrit ci-dessus en détail, ne sera pas décrit à nouveau ultérieurement. On dira seulement que les seuls détails qui, dans la description du groupe précité 2 sont désignés par les numéros de référence 20 à 24 dans le groupe 3, sont désignés au contraire par les numéros de référence 30 à 34 dont ceux qui sont en double, parce que sensiblement symétriquement égaux mais se trouvant disposés respectivement dans la partie supérieure ou inférieure du groupe relatif, se distinguent au contraire par l'addition de la lettre a ou b, respectivement, au symbole numérique.To better understand the characteristics and advantages obtained with the device in question, the latter, in one possible embodiment and only by way of non-limiting example, will be described hereinafter in detail with reference to the appended drawings in which :

• FIG. 1 is a front view of the device in question as a whole, applied to an upright of a relative support structure made on a facade of a building and arranged in the position used to produce coatings with glass plates arranged coplanarly with each other;
• Figure 2 is a plan view of the device of Figure 1;
• Figure 3 is a view equivalent to that of Figure 2, showing the positioning of the glass plates supported by the device in question, arranged in the two extreme positions of mutual convergence, achievable with such a device;
• FIG. 4 is a view from above similar to that of the preceding figures 2 and 3, showing the use of the two devices of the type in question arranged so as to make it possible to produce an arrangement in which the glass plates are arranged diverging orthogonally between them outwards ;
• Figure 5 is a perspective view of the entire device in question, applied to a relative amount of the support structure of a facade of a building;
• Figure 6 is an exploded perspective view showing the conformation of the various elements constituting the entire device shown in Figure 5; and finally
• Fig. 7 is an exploded perspective view showing a particular improvement which can be obtained simply by cutting transversely into two halves, the two groups of pairs of support arms of the glass plates provided in the device in question.

In the aforementioned figures, the common parts are designated by the same references, in addition, it will be noted that in FIG. 1, for the sake of clarity, the parts of the edges of the perimeter of the zones lying in the corners of the four glass plates which are concerned by the support points of the device in question are indicated in a simplified manner by fine hatching.
Referring firstly in particular to Figures 1, 2, 5 and 6, it is noted that the entire device D which will be described and which for the sake of clarity, is indicated in the figures of a strong line, n ' consists generally of five components and specifically, an application element 1, two groups 2 and 3 carrying respective pairs of arms 21a, 21b and 31a, 31b for the support of the glass plates L and two elements of support and adjustment 4 of said groups 2 and 3. The particular conformation, application and function of these components will be described below.
Said application element 1 is constituted by a piece of appropriate length, obtained from a particular extruded profile 11 made of a suitable metal or metal alloy and has the particular conformation which is described in detail below.
In essence, such an extruded profile 11 is basically defined by a body of rectangular section whose large side forms the rear flat surface, dimensioned and shaped complementary to the application surface 51 of the metal tube constituting the amount 5 on which said Application member 1 is fixed by suitable known means, such as normal screws, rivets, etc. As can be clearly noted in particular in FIGS. 5, 6 and 7 and even more in detail in FIG. 4, in the substantially rectangular section body defining such an extruded section 11, are formed longitudinally with respect to the latter, two cylindrical grooves 12 parallel to each other, which, as is clearly visible in Figure 4, are interrupted by segments T forming respective slots 13 opening into the front portion of said extruded section 11. It is clear, as it will be stated above that the width T of such slots 13 will suitably be less than the diameter of the relative cylindrical grooves 12. In the portion opposite to said slots 13, the respective two cylindrical grooves 12 are connected by means of appropriate slots 15 with two corresponding rectangular grooves 14 arranged with their long sides parallel to the corresponding long sides of said extruded section 11. The width of the slots 15 connecting the cylindrical grooves 12 to the respective rectangular grooves 14, whose function will be explained below, is slightly less than either the diameter of said cylindrical grooves 12, or the length of the long sides thereof (14). ).
The two groups 2 and 3 of pairs of arms 21a-21b and 31a-31b, as can be seen clearly in FIGS. 1 to 6 and in particular in FIGS. 5 and 6, are formed of two elements which by their shape have mirror symmetry with each other. It should be noted that such elements can be obtained preferably by pressure molding and / or by means of other new technological processes applicable to suitable metals or relative alloys such as in particular aluminum and its new special alloys. To summarize, the group 2 which in the application will be applied to the left of the entire device D seen from the front, is constituted by a wafer 20 of substantially rectangular shape which extends radially from a relative cylindrical body 24 with a first segment 201 , which in the basic arrangement clearly shown in FIG. 2, that is to say the one relating to the application of glass plates L coplanar with each other, is directed orthogonally to the plane defined by it (L) and then extends through a second arcuate segment 202 which terminates orthogonally to the previous (201) and therefore parallel to the plane of the glass plates L. Such a cylindrical body 24 has a diameter suitably greater than the thickness of said wafer 20 (in practice, at least slightly greater than twice such a thickness) and in any case equal to the internal diameter of the cylindrical grooves 12 above formed in the body of said elem Application 1. The upper and lower portions of said second segment 202 of said wafer 2 finally extend outwardly inclined respectively upwardly and downwardly, an upper arm 21a and a lower arm 21b, which terminate with respective cylindrical elements, upper 22a and lower 22b. Such arms, upper 21a and lower 21b, as well as the upper cylindrical relative members 22a and lower 22b all have a thickness equal to that of the aforementioned wafer 20. Finally, for known reasons, the upper cylindrical element 22a, the arm relative upper 21a, will be provided coaxially with a cylindrical hole 23a having a larger diameter suitably than that of the applicator rod of the relative ball member 50 (see Figures 2, 3 and 4) which, as it is known, will be inserted and fixed in a relative hole of a glass plate L to bear, and the lower cylindrical member 22b will instead be provided with an oblong hole 23b having a width equal to the diameter of the rod of application of the relative spherical element 50 and a slightly greater length, in practice equal to the diameter of the aforementioned cylindrical hole 23a. Obviously, the group 3, since, as has already been said and as it appears clearly in all the figures mentioned, has a mirror symmetry with the group 2 described above in detail, will not be described again later . It will only be said that the only details which, in the description of the aforesaid group 2 are designated by the reference numerals 20 to 24 in the group 3, are designated on the contrary by the reference numerals 30 to 34, including those which are in duplicate, because they are substantially symmetrically equal but located respectively in the upper or lower part of the relative group, on the contrary they are distinguished by the addition of the letter a or b, respectively, to the numerical symbol.

We will now describe the last component of the device D in question, that is to say the support and adjustment element 4 mentioned above. As it appears in particular on FIGS. 5, 6 and 7, said support and adjustment element 4 whose application and function will be detailed in the following, basically consists of a simple metal square having a first arm 41 of one end of which extends orthogonally a second arm 42. Said first arm 41 is formed of a rectangular plate having a section transverse also rectangular with dimensions equal to those of the grooves corresponding rectangular plates 14 formed in the above-mentioned application element 1, in which as described below, will be inserted and will extend over a suitable short length suitable for contain, arranged along its axis and spaced appropriately between them, two holes 411 outlets adapted to allow the passage of appropriate screws for fixing VF. Said second arm 42 is obtained simply by folding a small segment of the end of said plate forming said first arm 42 after prior reduction of its width to the width of said slots 15 which connect the cylindrical splines 12 and the rectangular splines 14 together adjacent to them, and in it (42) will be made a threaded hole 412 in which will engage a relative adjustment screw VR which will be arranged coaxially with the cylindrical splines 12 formed in said applicator element 11 and therefore also with the cylindrical body 2c or 3c of the aforementioned groups 2 and 3 of pairs of arms 21a-21b and 31a-31b.

The description of the conformations of the individual components of the device in question being completed, their assembly and function will now be described.

In the first place, said application element 1 will be positioned and fixed in a manner and with normal and known means which are therefore not shown, on the amount 5 of the structure application that will have been made normally on the facade of the building that we wish coated. Of course, the fixing point will have been previously defined in a project. We insert then in the two rectangular grooves 14 of the aforementioned application element 1, the rectangular plates forming the respective arms 41 of two respective adjustment elements 4 who will first be carefully positioned on the application element 1, obviously always pre-defined places in an appropriate manner and then permanently fixed on him (1) by means of adequate screws for fastening VF which, through the through holes 411 being on such first arms 41, will engage in relative threaded holes that have been previously made on the bottom of said rectangular grooves 14.

This being done, applying to said application element 1, groups 2 and 3 of pairs of 21a-21b and 31a-31b arms, inserting the relative cylindrical bodies 24 and 34 in the grooves relative cylindrical 12 in which they can freely penetrate, since at the same time time, the respective first segments 201 and 301 of the corresponding plates 20 and 30 which, as has been said, extend radially from the cylindrical bodies 24 and 34, freely slide in the corresponding slots 13. Said cylindrical bodies 24 and 34 will therefore come into abutment, with the respective circular surfaces in their lower ends, against the upper free ends of the VR adjusting screws which obviously will have been previously inserted into respective threaded holes 412 made in the second relative arms 42 corresponding support elements and setting 4.

Once the complete assembly of the entire device D has been completed, it will then be possible to proceed with the vertical displacement of the two groups 2 and 3 and then the positions of the elements relative cylinders 22a-22b and 32a-32b being, as said, at the ends of the arms 21a-21b and 31a-31b, by simply screwing or loosening the screws of 45. It will thus be possible to adjust very finely vertically the positions of the axes of the cylindrical holes 23a and 33a, as well as oblong holes 23b and 33b lying in the respective upper cylindrical members 22a, 32a and lower 22b, 32b, thereby permitting precise adaptation of their axes to the position of the axes of the holes made on the glass plates L, which, as we know, can often, for various reasons, vary slightly.

It is clear and evident from what has been described that the particular solution described can amply vary the angle formed between the adjacent glass plates L to each other. This can actually be achieved by simply twisting the two groups 2 and 3 about the axes of the cylindrical longitudinal grooves 12 in which they engage with the respective cylindrical bodies 24 and 34, rotation which is permitted thanks to the width T of the longitudinal slots 13 which is suitably greater than the thickness of the plates 20 and 30. By way of example, in FIG. 2 is represented the corresponding arrangement the positioning of two plates L adjacent to each other and coplanar. In Figure 3, are represented on the contrary the two extreme positions achievable with a single device D, more precisely, a strong continuous line is indicated a positioning in which two plates L adjacent to each other are arranged slightly diverging outwardly (in practice, they can form between them an angle A of about 200 degrees so slightly greater than the flat angle that would correspond to the coplanarity shown in Figure 2), whereas in dotted is indicated the positioning in which two plates L are positioned converging orthogonally to each other to the outside (in practice, they form between them an angle B of 90 degrees).

Finally, in FIG. 4 is shown obtaining, thanks to the use of two devices D, of a subsequent positioning of two plates L adjacent to each other which are, in this cases, mutually diverging mutually orthogonally outward. We can clearly obtain with the same arrangement angles C of greater divergence, until reaching a flat angle corresponding to the coplanarity of the plates L.

It should also be noted that in Figures 2, 3 and 4 are shown only symmetrical L plates, but it is clear that asymmetrical arrangements will also be possible and will of course be able to subsequently increase the conformations achieved by facade surfaces to be coated. We note here how far the solution that has been described so far can be further improved simply by cutting transversely in two halves the two groups 2 and 3 to get as well, as is clearly visible in the figure 7, four distinct elements each provided with a single arm. For the sake of clarity, in this figure 7, the four elements resulting from the division of groups 2 and 3 are again designated by the references 2A and 3A for the upper elements and references 2B and 3B for the elements lower. The elements resulting from the division in two of the plates 20 and 30 as well as the bodies relative cylinders 24-34 will also be designated separately adding to the number of reference the letter A to designate the upper elements and the letter B to designate the elements lower. All other references will remain unchanged. In this conformation subsequent assembly, the assembly of the various components will be done in much the same way as for the previous solution. The only difference will lie in the fact that in the grooves cylindrical 12 of said support members 1, the first cylindrical bodies will be inserted first 24B and 34B respectively of the respective lower elements 2B and 3B, as in the previous case, resting on the upper ends of the adjustment screws VR of the elements of setting 4 relative, which obviously will have already been previously fixed on the support element relative 1. We will always insert in the two cylindrical flutes 12 small disks relative 6 which will bear on the upper ends of the lower cylindrical bodies 24B and 34B above. Such small discs 6 which may have appropriate thicknesses equal or different, will be used to appropriately space said bodies lower cylindrical cylinders 24B and 34B of the respective upper cylindrical bodies 24A and 34A and therefore the relative upper elements 2A and 3A of the corresponding lower elements 2B and 3B.

It is clear that this particular later solution has the advantage notable to allow a dual adjustment of the vertical positioning of the ends of the pairs of arm 21a, 21b and 31a, 31b. More specifically, by interposing, between said cylindrical bodies 24B and 34B and the corresponding upper cylindrical bodies 24A and 34A, small discs 6 variable thickness at will, it is possible to adjust the distance between the centers of pairs of cylindrical elements 22a-22b and 32a-32b at the ends of respective arms 21a-21b and 31a-31b. Once this is done, it will also be possible to move vertically the resulting whole groups 2A-2B and 3A-3B which, as described above, will be already adjusted appropriately with mutual spacing by the interposition of said small 6, acting, as we have already seen, on the adjustment screws 45. It is clear that at the end of all application and adjustment operations, both groups 2 and 3 of the first solution described at the beginning, or the four elements 2A, 2B, 3A, 3B obtained, as said, by the division groups 2 and 3, would remain free to rotate amply, practically over 45 degrees around their axes of articulation, that is to say around the axes of the cylindrical grooves 12, such a possibility being precisely the fundamental and characterizing property of the present invention. In order to avoid then a similar freedom of movement that would clearly cause unacceptable drawbacks and would practically prevent the use of the relative device, it must block the cylindrical bodies 24 and / or 34 of the initial solution or the cylindrical bodies 24A and / or 34A and / or 24B and / or 34B of the subsequent solution described, in the grooves respective cylinders 12. Such a blockage can clearly be obtained in various ways and with various means, for example, as illustrated in FIGS. 5 and 6, it can be obtained by screwing the screws or studs 7 (two in the first solution, as can be seen in the Figures 1 and 6 or four in the second solution, as can be seen in Figure 7) in threaded holes 71 (see Figures 6 and 7) made at appropriate locations on parts of the walls external members of the body forming said support member 1 which are easily accessible.

It will be noted in passing that said support element 1 may be constituted by a piece of a limited length (the minimum necessary) obtained from the extruded relative section 11 or even of a segment of notable length always obtained from the profile 11 which can advantageously be used for the purpose of obtaining, with the total coverage of the face of the amount 5 on which it is attached, a particular aesthetic effect.

In this respect, it should be noted that the said two groups 2 and 3 have a symmetry with each other only because they differ in the shape of the holes made in the respective cylindrical elements, in fact, as described, in the cylindrical elements 23a and 32a are made respective cylindrical holes 23a and 33a while in the lower cylindrical elements 22a and 32a are made respective oblong holes 23b and 33b extending over a length equal to the diameter of said cylindrical holes 23a-33a. It will be possible to perform, in place of said two groups 2 and 3 different from each other and different only because of the duplicity of the holes 23a, 23b, 33a, 33b made in them, a single element initial comprising only oblong holes. It will then be possible to transform one any of the two oblong holes of such a single initial element into a cylindrical hole and this simply by going back into the oblong hole to change, a drill bit. In Consequently, the only initial element that has been properly and simply transformed can be applied on both the right and left side of the relative application element 1, in addition, even better, the two sub-elements that can be obtained by cutting it transversely in two halves, as already described for groups 2 and 3, may be applied anywhere and where it is useful. From the above, the benefits subsequent noticeable that can be achieved with this latter solution appear clear and obvious. In addition to reducing the basic types of mussels to use, we also obtain a significant simplification and a reduction of stocks and thus a rationalization of the store, a less capital and capital and a greater flexibility of possibilities adaptation also to wide variations in demand.

In conclusion, it is clear and plain from what has been described in detail above that the device, object of the present invention, makes it possible to obtain not only significant simplifications for production and use, and therefore the relative advantages of the in terms of achievement and costs, but also large and varied opportunities, either variation in the mutual convergence or divergence of adjacent plates to one another, of adjusting the position of the centers of the cylindrical elements at the ends free of the support arms of the glass plates to adapt them to the application holes themselves. finding on these.

It is understandable that various variants may be made to the object of this invention, without departing from the scope of what has been described in detail above and claimed hereinafter with reference to the accompanying drawings, and therefore the scope of the protection of this private industrial property.

Claims (7)

Device for fixing glass plates on building facades, this device being of the type comprising an application element consisting essentially of a metal plate suitably shaped, fixable in a manner and with known means to a relative support structure normally carried out on a relative building facade, on said plate being applicable, parallel to the vertical axis thereof, two groups carrying respective pairs of arms for the support of appropriate glass plates, said arms extending radially diverging symmetrically with respect to each other as well as with respect to the horizontal and vertical axes of application, suitable fixing elements which can be inserted and fixed in corresponding holes made near the corners of the glass plates to be fixed with said device are also applied. on the free ends of said arms, the new ositif (D) object of the present invention being characterized in that it consists essentially of a suitable application element (1) fixable in a manner and with known means to a upright (5) of the application structure previously made on the facade of the building to be coated, and two groups (2 and 3) pairs of arms (21a, 21b and 31a, 31b) extending from respective plates (20 and 30) extending in turn radially from respective cylindrical bodies (24 or 34) articulated vertically on said applicator element (1), means for supporting and adjusting (4) the vertical positioning of said cylindrical bodies (24 and 34) along axes; respective articulation members on the relative application element (1) as well as fixing means (7) able to block the rotation of said cylindrical bodies (24 and 34) being further provided. Device according to claim 1, characterized in that said application element (1) consists of a substantially parallelepipedal longitudinal body, in which are formed longitudinally two cylindrical grooves (12) parallel to each other as well as suitably open at the front by adequate slots (13); the application of said groups (2 and 3) to said application element (1) being obtained by the insertion of the relative cylindrical bodies (24 or 34) in said cylindrical grooves (12), this insertion being possible because the segments initial (201 and 301) said pads (20 and 30) which extend radially from said cylindrical bodies (24 or 34) can simultaneously freely penetrate and slide in said slots (13) which have a width slightly greater than the thickness of said segments (201 and 301), allow a slight circumferential displacement corresponding and therefore a corresponding rotation of the relative groups (2 and 3) around the resulting axis of articulation corresponding to the axis of said cylindrical grooves (12). Device according to the preceding claims, characterized in that said slots (13) have a width equal to approximately twice the thickness of said segments (201 and 301), such a width being sufficient to allow said groups (2 and 3) of rotational movements of about a quarter turn, thus allowing to vary widely the mutual arrangement between two plates (L) of glass adjacent to one another which can be arranged coplanarly one with the other or symmetrically or even asymmetrically variably mutually convergent or divergent with each other. Device according to claim 1, characterized in that each of said support and adjustment elements (4) consists of a simple metal bracket having a first arm (41) at one end of which (41) orthogonally extends a small second arm (42), the rectangular wafer forming said first arm (41) being sized to be insertable and slidably guided in one of the rectangular splines (14) preferably formed at the rear of said cylindrical splines (12) to which they are connected with respective appropriate slots (15) in said second arm (42), in such a parallelepipedal element (43) being furthermore made a threaded hole (44) whose longitudinal axis coincides with the axis of the cylindrical groove (12) wherein the relative support and adjustment member (4) is applied; said support and adjusting member (4) being applied and fixed by means of the plate forming its first arm (41) which is inserted into a corresponding rectangular groove (14) and fixed in it (14) by means of fixing screws appropriate (VT). Device according to the preceding claims, characterized in that said two groups (2 and 3) of pairs of arms (21a-21b or 31a-31b) can advantageously be divided in cross-section at half their height so as to obtain two upper subgroups (2A and 3A) and two lower subgroups (2B and 3B) substantially symmetrical to each other, the insertion during their assembly of appropriate discs (6) of various appropriate thicknesses, interposed between the respective respective cylindrical bodies (24A-24B and 34A-34B) resulting in a corresponding variation of the mutual distance between them (2A-3A and 2B-3B). Device according to the preceding claims, characterized in that the two groups (2 and 3) of pairs of arms (21a-21b and 31a-31b) which are normally provided on the respective ends of holes different from each other and precisely of a cylindrical hole (23a-33a) and an oblong hole (23b-33b), can advantageously be substituted by a single initial element in which in the ends of the two respective arms are made only oblong holes, any one of they can be transformed into a cylinder, simply by passing again a drill bit having a diameter equal to the length of the oblong hole to be modified. Device according to the preceding claims and in particular according to claim 4, characterized in that the division into two halves of the single arm element provided only with oblong holes makes it possible to obtain two sub-elements whose oblong holes can always be transformed into holes cylindrical, each of these sub-elements can then be positioned at any point of a relative device (1) and therefore at any point in the overall structure.

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