EP0049694B1

EP0049694B1 - A set of metal sections for constructing door and window support frames

Info

Publication number: EP0049694B1
Application number: EP81830183A
Authority: EP
Inventors: Nicolò Ferro
Original assignee: SLIM LAVORAZIONI INDUSTRIALI METALLI SpA Soc
Current assignee: Slim Lavorazioni Industriali Metalli SpA Soc
Priority date: 1980-10-08
Filing date: 1981-10-05
Publication date: 1985-09-11
Also published as: IT8049842A0; EP0049694A1; IT1144014B; ATE15523T1; DE3172240D1

Abstract

The metal sections in question, that form the fixed frame, the movable frame and the frame-work surrounding the doors and windows achieved therewith, have a specially shaped base profile vrovided with particular projections (9) and longitudinal projecting parts (7) designed to couple by restraint one similar section to another, and to permit the insertion of anchoring and/or manoeuvring accessories (41,43) that can be fixed to the sections without subjecting them to any milling or drilling operation, thereby providing a structure that is particularly simple, robust, easy and fast to install.

Description

The invention relates to a set of metal sections for constructing door and window support frames and, more precisely, has as its object the special shape of the base profile of the metal sections in question and the particular projections' and projecting parts provided thereon, by means of which it is possible to assemble the metal sections one to the other and to insert suitably prior prepared anchoring and/or manoeuvring accessories in order to form any support frame or structure for single or multiple windows and/or doors, as well as for windows of the jutting and bascule type, etcetera.
A number of construction solutions using metal sections of various conformations are known, such as those described in patents DE-A-2750351, CH-A-546878, and DE-A-2129779, all of which have on one or more of their sides one or more "T" tracks. Said metal sections must be combined together with other different complementary sections, since they are not adapted to the construction of all fixed or movable door and window frames. Particularly in DE-A-2129779 is described a "box section" obtained by the reciprocal joining of grips at its ends and central fastener elements of several section members, only a few of these having "T" tracks and corresponding "L" projections or simple projections.
The object of this invention is to create a set of metal sections that can be fitted together in an exceptionally fast and sturdy manner, able by means of numerous configurations of reciprocal connection, to construct both the fixed and movable frames of doors, windows and similar of various kinds, including for example the kind wherein there is thermal insulation between the outdoor and indoor surfaces, and including the kind that has, for substantially aesthetic reasons, not only parallel but perfectly plane exterior and interior surfaces.
This set of metal sections is so constituted that each of the sections has a similar base profile and is able to realize said numerous configurations of reciprocal connection and making it possible to have, on each transverse surface of both the fixed and movable frames associated with them, the same peripherally continuous support structure for sealing and finish elements and, especially, for a wide variety of manoeuvring and/or anchorage accessories. Said accessories have to be shaped according to said single support structure in such a manner to be fixed- or slide-mounted in any position of any of the said multiple configurations, it not being necessary to provide special previous working of the sections, such as drilling, grooving, milling, etc., to house the accessories. The set of metal sections in question is particularly suitable for the construction of any door or window support frame and, contemporaneously, it satisfies both the fundamental exigencies of solidity, inalterability and imperviousness to atmospheric agents, and any particular requirement for the thermal insulation and flatness of the inside and outside surface.
The said objects and others too are attained by the set of metal sections according to the invention which, from a general point of view, is characterized by the fact that each section comprises a base profile constituted by a support, in sectional form substantially rectangular in shape, that defines a closed chamber, the support having on both of its longitudinal sides, in the region of at least one of the smaller sides thereof, a flat limb extending in continuation of the said smaller side from at least one part thereof and terminating in the region of its own free extremity in an essentially "C" shaped border provided for the insertion of sealing elements and, on each of the larger sides thereof, having a pair of "T" tracks, an "L" shaped projection, turned towards the inside of the base profile, present in the region of at least one of the smaller sides and a projecting part realized on the said flat limb, the T-tracks, L-shaped projections and the projecting parts defining between one another three chambers for the coupling of other sections or the housing of sealing elements or accessories; the extremities of said "L" shaped projections and the said projecting parts corresponding exactly to the extremity of the said "T" tracks.
A preferred characteristic of the set of metal sections in question lies in the fact that one or more of said metal sections has its base profile in correspondence with one of the minor sides of said support, provided with a small chamber communicating with and staggered relative to said chamber and having, as an extension of its minor side opposite to the corresponding minor side of chamber and from at least one part of it, a flat limb furnished, near its free end, with a tab perpendicular to it and ending at the height of said minor side of chamber and of the "L" adjacent projections.
A further characteristic of the set of metal sections in question lies in the fact that one or more of the said metal sections, in which thermal insulation is effected between the surfaces exposed to the outdoors and those exposed to the indoor environment by forming said metal sections into two elements separated by an insulating core. One of said elements exposed to the interior environment has a closed chamber smaller in size than the similar chamber of the base profile, having on its side said pair of "T" tracks, thus defining in correspondence to its minor side, a housing bounded on its sides by a pair of equal limbs realizing the prolongation of the corresponding major sides and having, on their inner surfaces, projections that engage with one or more of said cores of thermoinsulating material running longitudinally; the other of said elements exposed to the outdoors comprising, in corresondence with the side turned toward said first element, at least one longitudinally running projection on both sides provided with grooves and smaller projections and having at least one of the said flat limbs provided with said projection and having, whether both together or as alternatives, at least one of the said "L" projections. Said elements joined together with at least one of the said cores being interposed, define between each pair of said "T" tracks of the first element and the corresponding projections and "L" projections of the second element, the said three chambers. Further characteristics and advantages of the invention will become more apparent from the detailed description that follows with respect to the accompanying drawings, in which:

FIGURE 1 shows with 1a, 1b, 1c and 1e the profiles of metal sections according to the invention, and with 1d and 1f metal sections for use with the sections according to the invention;
FIGURE 2 shows another profile of a metal section 2a in accordance with the invention;
FIGURE 3 shows with 3a and 3b the profiles of other metal sections in accordance with the invention;
FIGURE 4 shows, in a diagrammatic view, a double window and double French windows;
FIGURE 5 shows, sectionalized along the line "AA", the French windows depicted in the preceding figure;
FIGURE 6 shows, sectionalized along the line "BB", the window depicted in Figure 4;
FIGURE 7 shows, sectionalized along the line "CC", the window depicted in Figure 4;
FIGURE 8 shows a metal section according to the invention on which a cremone handle is assembled;
FIGURE 9 shows metal sections in accordance with the invention on which a handle for a jutting window is assembled;
FIGURE 10 shows metal sections in accordance with the invention on which a hinge is assembled;
FIGURE 11 shows two metal sections in accordance with the invention between which a compass for jutting windows is assembled;
FIGURE 12 shows a metal section according to the invention assembling one detail of a compass for bottom hinged windows;
FIGURE 13 shows, in a perspective view, a hinge for jutting windows;
FIGURE 14 shows metal sections in accordance with the invention on which a latching device for tip-up doors is assembled.

With reference to the aforementioned figures and, in particular, to Figures 1, 2 and 3, at 1a has been shown a metal section constituted by a base profile that comprises a support 4, in sectional form substantially rectangular in shape, that defines a closed chamber 5 having, in continuation on opposite sides on both the smaller sides, a flat limb 6 provided with a projecting part 7 and terminating in a pair of essentially "C" shaped borders 8. Both of the larger sides of the said support 4 are provided with a pair of "T" tracks 9 and, in continuation on opposite sides to the limbs 6 of the smaller sides, with "L" shaped projection 10.
The said projecting parts 7, "T" tracks 9 and "L" shaped projections 10 correspond exactly one with the other and form three chambers designed to accept and restrain other similar sections, to house sealing elements and to restrain or have inserted therein anchoring and/or manoeuvring accessories.
In Figure 1, shown in dashes for the metal section 1a, is a variant consituted by the presence of two symmetrical and opposite flat limbs 6 in the region of one of the smaller sides. The said variant creates a section shown at 1b.
At 1c has been shown a section similar to the one mentioned previously but having, in continuation of one and the same smaller side of the support 4, a pair of flat limbs 6, and on the other smaller side, two symmetrical and opposite "L" shaped projections 10.
A section similar to those mentioned previously has been shown at 1d but this has one of the larger sides of the support 4 open and, in the region of the extremities of the said opening, provided with a pair of flat and horizontal limbs 11 that both terminate in angularly turned trunca- tions 12.
The said sections can naturally be made with the support 4 defining a closed chamber 5 dimensioned differently, as depicted by way of an example at 1e, so as to allow the use of frames, both fixed and movable, dimensioned to suit the requirements, without augmenting the number of sections fitted one to the other, this being to the advantage of the robustness and resistance of the door or window frame concerned.
At 1f has been shown a complementary glass fastening section for double panes, in sectional form substantially quadrangular in shape, open on one side, the open extremities of which are each provided with a border, 26 and 27, respectively, for fixing by restraint the said section to the previously described sections. The said section 1f has, in the region of one extremity of the side opposite the said opening, "C" shaped border 8 provided for the insertion of glass fastening sealing gaskets. A conformation differing slightly from the section 1f, designed to serve to fasten the glass in single pane window, has been shown with dashes in the said figure.
In Figure 2 has been shown a section, 2a, in all respects similar to the section 1a but, in the region of one of the smaller sides thereof, provided with a small chamber 13, communicating and staggered with respect to the closed chamber 5, provided with a flat limb 14 similar to the one described previously but having, in the region of the extremity thereof, a projection 15 that terminates in a "C" shaped border 8 that lies on the same plane as the said smaller side of the chamber 5 and as the "L" shaped projections 10 adjacent thereto. The said section 2a, when fixed together with other similar ones to the previously described sections, makes it possible to construct frames with flat inside and outside surfaces, as shown in Figure 6.
In Figure 3 has been shown a section 3a substantially similar to section 1a but consisting of two elements, one of which, shown at 16, is subjected the inside atmosphere, and the other, shown at 17, is subjected to the outside atmosphere. The said element 16 is provided with a closed chamber 18, of a reduced size compared to the similar chamber 5, having in the region of one of the smaller sides thereof, a pair of limbs 19 provided with projections and contours 20 designed, in conjunction with the said smaller side, to house and restrain one or more longitudinal cores 21 of heat insulating material. The said cores 21 (see Figure 3) are in sectional form almost quadrangular in shape and the conformation of each in such as to form, on one side thereof, a longitudinal cavity 22, provided with grooves and protrusions 23, designed to house a complementary projection 24 with which the said element 17 is provided. The conformation of the latter can naturally be such as to present two flat limbs 6, as shown at 17a in Figure 3.
A section, shown at 3b, consisting of two elements, as is the case with the section 3a and similar to the previously described section 1c, has its element subjected to the outside atmosphere, 17b, provided with a small chamber, 25b, the purpose of which is the same as that of small chamber 13 of the section 2a, namely, to construct thermally insulated door and window frames in which the inside and outside surfaces are flat.
As can be seen from Figures 5, 6 and 7, it is obvious that the fitting together of the sections 1a, 1b, 1c, 1d, 1e and 1f provides frames, both movable and fixed, for ordinary type doors and windows. By fitting the section 2a to the pre-. viously mentioned sections, the same frames are formed; but with flat surfaces, whilst similarly to the foregoing, the use of the sections 3a and 3b provides thermally insulated frames of either the normal type or with flat inside and outside surfaces. All the said sections are characterized by an extremely robust support structure for single or multiple windows or doors, and for windows of the bascule, jutting and bottom hinged type, etcetera.
In the aforementioned Figures, and in particular in Figure 5 wherein is shown a section along the line "AA" of the French windows depicted in Figure 4, the fixing by restraint, one to the other, of the sections 1e, 1d and 1f, using for this solely the said "L"shaped projections 10 and the "T" tracks 9, can be seen. In the "C" shaped borders 8 are housed the sealing gaskets 28, and in the region of the seating for the glass are housed the relevant fixing gaskets 29. The rabbet for the said double French windows is guaranteed by an elastic element 30, of elongated shape, inserted in the space defined by the projecting parts 7 and the "T" tracks 9 of the section 1d in contact with a gasket 31 housed in the space defined by the "L" shaped projection 10 and the "T" track 9 of the section 1e.
Figure 6 shows a section of the window depicted in Figure 4, along the line "BB", for which use has been made of the sections 1a and 1f together with the section 2a to create, in this way, a door or window frame having, apart from the point where the hinge 32 is inserted, perfectly flat outside and inside surfaces. The rabbet between the fixed frame (section 1a) and the movable frame (section 2a) is likewise guaranteed by an elastic element 30 and a gasket 31.
In Figure 7 has been shown a section along the line "CC" of the window depicted in Figure 4, for which use has been made of sections that thermally insulate the inside atmosphere from the outside atmosphere and, moreover, the said sections constitute the outside surface of the flat frame. Use has been made, in particular, of the sections 3a, constituted by the elements 16 and 17, of another section 3a, constituted by the elements 16 and 17, of two cores 21 and of a glass fastening section 1f. Besides the usual gaskets 28, 29 and 30 and the elastic element 31, a pin 33, for fixing the section 3a to the brick wall, housed in the space defined by the pair of "T" tracks 9, and two sealing elements 34 with which to fill the remaining two spaces in order to guarantee the imperviousness of the fixed frame to atmospheric agents, can be seen in the said figure.
Figures 5, 6 and 7 are purely illustrative examples of some of the infinite possibilities of assembling the aforementioned sections to one another.
In Figures 8 to 14 have been shown, by way of an exmaple, some of the accessories for the construction of the door and window frames in question, so shaped as to be fixed to the said sections using exclusively the "T" tracks 9 and the corresponding projecting parts 7 and "L" shaped projections 10.- In particular, Figure 8 depicts a cremone handle comprising a grip 35 engaged rotatably with a base body 36 that houses internally a rack for the reciprocal movement of the two teeth 37. The said teeth 37, located in a slot 38 machined in the region of a flat limb 6 (for example, of a section 1a), are positioned in the inside of the space defined by the projecting part 7 and the "T" track 9, and they engage with a pair of rods 39 inserted in a sliding fashion between the said projecting part 7 and the other "T" track 9, through notches that cannot be seen in the Figure.
In Figure 9 a handle for jutting windows has been shown, and this is constituted by a grip 40 rotatably engaged eccentrically in a base 41 mounted (for example, on a section 1c) in contrast with one of the said "T" tracks 9, and fixed by means of a grub screw 42 in the region of the remaining track. The section opposite the one bearing the said handle (type 1 b for example) has mounted astride the flat limb 6 thereof, facing the said base 41, an element 43 for locating the eccentricity of the grip 40 (shown with dashes in the Figure in question), the said element 43 being restrained in between the said flat limb 6, the relevant projecting part 7 and the corresponding "T" track 9.
In Figure 10 has been shown a hinge 32 whose two portions 44, when closed, are inserted in the space existing in between the flat limb 6 of a section (type 3a for example) constituting the movable frame and the support 4 of another section constituting the fixed frame (another type 3a for example), and are fixed in contrast between the projecting part 7 and the relevant "T" track 9, respectively, of the first section and astride the corresponding "T" track 9 of the second section by means of grub screws 42. The hinge 32 in question can, naturally, be of the single, double (or "comb") type or else of the type for the third element of a triple door or window.
In Figure 11 has been shown a compass for jutting windows, comprising a pair of square ends 45 inserted in contrast in between the said pairs of "T" tracks 9 provided on the two opposite sections that constitute the fixed frame and the movable frame (two type 1c sections for example), fixed thereto by means of grub screws 42, the respective extremities of these engaging rotatably with a rod 46.
One of the said square ends 45 has been shown in Figure 12 coupled and fixed to a flat element 47, complementary thereto, inserted in a sliding fashion in between the said pair of "T" tracks 9 in such a way as to allow the square end 45 and the rod 46 pivoted thereto to slide vertically in order to construct bottom hinged windows.
In Figure 13, furthermore, has been shown a hinge for jutting windows, comprising a pin 48 mounted in contrast in between the "L" shaped projection 10 and the corresponding "T" track 9 of a type 1c section and forming the upper cross member of the movable frame, fixed thereto by means of grub screws 42. The said pin 48 is housed in an oblique guide 49 machined in a plate 50 inserted, in a way whereby it is able to slide, between the pair of "T" tracks 9 and the relevant projecting part 7 and the "L" shaped projection 10 of a section that defines the fixed frame. The said plate is held in position by a locking element 51, able to slide similarly, which can, however, be fixed to one of the "T" tracks 9 by means of the usual grub screw 42. With the said conformation it is possible to form a hinge for jutting windows that can be removed from its upper position in order to allow, for example, the glass to be cleaned on the outside, which is something it is normally not possible to do through just the lower opening permitted by the compass.
Finally, in Figure 14 has been shown a latching device of what is commonly called the "sprung" type, used for tip-up doors and windows, constituted by a body 52 mounted astride the flat limb 6 of a section (type 1a for example) that constitutes the upper cross member of a movable frame and terminates, inside the space defined by the said section with the corresponding section opposite thereto that forms the fixed frame, in a protrusion 53 in contrast with a spiral spring 54.
The said protrusion 53 is inserted in the space defined by the "L" shaped projection 10 and the relevant "T" track 9 of the section that constitutes the fixed frame. The aforementioned body 52 is maintained integral with the section that constitutes the movable frame, and is guided in the vertical movement of opening and closing the protrusion 53 by a plate 55 restrained in between the pair of "T" tracks 9 of the said section, the projecting part 7 and the pair of "C" shaped borders 8 of the adjacent flat member 6.
It can be immediately seen from the Figures to which reference has been made, that for the construction of door and window frames with the metal sections in question, no other complementary or additional sections are required, with the exclusion of gutters that can be fixed externally with ordinary screws, or shims inserted to define the seat on which the panes of glass rest or to position the frame against the brick wall.
Though the foregoing description has obviously been given purely as an example, reference having only been made to a given number of metal sections with which the construction of certain support structures is possible, the provision is naturally to be foreseen of other similar sections, derived logically from those described herein, all of which fall within the framework of protection as outlined in the following claims.

Claims

1. A set of metal sections for the construction of both the fixed frame and the movable frame of a door or movable window, each section comprising a base profile constituted by a support (4), in sectional form substantially rectangular in shape, that defines a closed chamber (5), the support having on both of its longitudinal sides, in the region of at least one of the smaller sides thereof, a flat limb (6) extending in continuation of the said smaller side from at least one part thereof and terminating, in the region of its own free extremity, in an essentially "C" shaped border (8) provided for the insertion of sealing elements and, on each of the larger sides thereof, having a pair of "T" tracks (9), an "L" shaped projection (10), turned towards the inside of the base profile, present in the region of at least one of the smaller sides, and a projecting part (7) realized on the said flat limb (6), the T-tracks (9), L-shaped projections (10) and the projecting parts (7) defining between one another three chambers for the coupling of other sections or the housing of sealing elements or accessories; the extremities of the said "L" shaped projections (10) and the said projecting parts (7) corresponding exactly to the extremity of the said "T" tracks (9).

2. A set of metal sections, according to claim 1, for frames in which the outer and inner surfaces are plane, characterized by the fact that one or more of said metal sections has its base profile, at one of the minor sides of said support (4), provided with a small chamber (13) communicating with and staggered relative to said closed chamber (5) and having, as an extension of the side of the small chamber, a flat limb (14) furnished, near its free end, with a tab (15) perpendicular to it and ending at the height of said minor side of clÏamber (5) and of the "L" adjacent projections.

3. A set of metal sections, according to claim 1, in which thermal insulation is effected between the surfaces exposed to the outdoors and those exposed to the indoor environment by forming said metal sections into two elements separated by an insulating core, one of said elements, comprising one or more of said metal sections exposed to the interior environment (16), having a closed chamber (18) smaller in size than the similar chamber (5), having on its side said pair of "T" tracks (9), thus defining, in correspondence to its minor side, a hosuing bounded on its sides by a pair of equal limbs (19), these being the prolongation of the corresponding major sides and these having, on their inner surfaces, projections (20) that engage with one or more of said cores of thermoinsulating material running longitudinally (21); the other of said elements (17) exposed to the outdoors comprising, in correspondence with the side turned toward said element (16), at least one longitudinally running projection (24) on both sides provided with grooves and smaller projections and having at least one of the said flat limbs (6) provided with said projection (7) and having, whether both together or as alternatives, at least one of the said "L" projections (10); said elements (16) and (17), joined together with at least one of the said cores (21) being interposed, defining between each pair of said "T" tracks (9) of element (16) and the corresponding projections (7) and "L" projections (10) of element (17), the said three chambers.

4. A set of metal sections according to claim 3 characterized by the fact that said thermoinsulating core (21) has a substantially trapezoidal cross-section, thus creating, in correspondence with the major base facing outward, a longitudinally-running cavity (22), provided with projections and grooves (23) which correspond to and are complementary with said grooves and projections of said projection (24), being insertable into it bayonet-jointwise to be locked on; said core having, on its oblique sides, grooves and projections that correspond to and are complementary with the said projections and grooves (20) of said pair of equal limbs (19).

5. A set of metal sections, according to claims 1, 2 and 3, for the construction of both fixed frame of a door or movable window, frames of the kind wherein thermal insulation is effected between the surfaces exposed to the outdoors and those exposed to the indoor environment, these surfaces being plane, the set being characterized by the fact that one or more of said section members (17) has a small chamber (25) provided, as an extension of one of its sides, at least with one of the said flat limbs (14).