IT202100003404A1 - STAVES FOR THE CONSTRUCTION OF WINDOWS AND WINDOWS MADE WITH THE USE OF STAVES. - Google Patents

Description

DESCRIPTION

Attached to patent application for INDUSTRIAL INVENTION entitled:

STAVES FOR THE CONSTRUCTION OF WINDOWS AND WINDOWS MADE WITH THE USE OF STAVES.

The present invention relates to a stave for forming, or realizing, or composing screens, or mantles, or sheets, of rolling shutters and sectional doors.

The present invention also relates to shutters and sectional doors, the surfaces of which are obtained with the use of the mentioned stave.

It is premised that, in the continuation of this discussion and for convenience? of exposure, the technical terms of usual identification of the stave in question in the sector will be reported as follows:

- the stave, normally identified on the market also as a slat or profile or band or panel, will be? indicated only with the terms stave or staves; - the folded longitudinal edges of the slats, commonly referred to as male or lower loop and, respectively, female or higher loop, will be indicated only as male loop and female loop;

- doors and windows such as shutters, sectional doors, panels, partitions or protection, will be indicated only with the terms shutters and, respectively, sectional doors;

- the sheets, or mantles, or leaves of said shutters and sectional doors will be indicated only with the term mantle or mantles.

Staves made of metallic material, or even of plastic material, are known on the market for making rolling shutters and sectional doors.

According to known production techniques, the metal slats are obtained by profiling from metal strips whose longitudinal edges are folded to form, along one of the edges, a male curl and a female curl along the other edge, to allow mutual connection hinged slats that are consecutive, or adjacent, or successive one to the other, in the formation of the mantles of said rolling shutters and sectional doors.

According to other known production techniques, the staves are obtained by extruding a suitable metallic or plastic material.

Sectional shutters and doors are intended to be installed to close the openings of rooms, such as shop entrances, garage entrances, or other building construction environments, or even for internal or external screening of shop windows, supermarkets or other , as well as - for example - for the construction of dividing or protective panels, and sectional doors.

According to one of the well-known production techniques, the staves are obtained with cold profiling processes of metal strips - in steel, stainless steel, aluminum or other suitable metal material.

The curls of the slats are shaped so as to be upside down with respect to each other, according to the profile of the slats, to allow said hinged connection between slats, which takes place by threading - according to the longitudinal direction of the slats - of the male curl of the ?one in the other female hedgehog.

In the art of the sector, known staves are classified according to the pitch P between their curls. The pitch P basically indicates the height of the staves and ? of considerable importance in the subdivision into strips of rolls of laminar metal material for the economy of processing scraps. The step P? also important? in calculating the number of staves needed to form the shutters and to define their weight as well as the time required for their production and assembly.

For example, staves commonly referred to as P115, P97 (where the numbers indicate the pitch P in millimeters) are known on the market. These staves are used for the construction of most of the shutters and are obtained starting from coils of laminar metal material with a standard width of 1,000 mm, or 1,250 mm or 1,500 mm, which are then cut in width into basic strips to obtain the several staves with P pitch. To make a stave with P115 pitch, it is necessary to start from a strip with a width of 180 mm.

If we consider the widths of the standard starting reels (1000 mm, or 1,250 mm, or 1,500 mm wide) it is clear that their subdivision into ?n? tapes involves a not negligible waste of non-recoverable material and which, inevitably, is led to scrapping, as exemplified in the following table:

TAB.1

In the formation of the coats it is necessary to have benches, or templates, for assembly, or in any case spaces, even of considerable dimensions, in order to insert, longitudinally, the male curl of one stave into the female curl of another stave. Practically ? it is necessary to have a space in width that is at least double the length of the slats.

These large spaces are almost never available on the installation site of the shutters, therefore, very frequently, we proceed:

- the formation of coats in the workshop,

- to roll up said membranes to be able to transport them to the place where the damper is to be installed;

- to develop coverings on the installation site of the damper to connect them to the fixed frames of the damper itself and, finally,

- connect the door leaf to the winding or operating means of the damper installed (winding tube, or spring holder shaft, or spring cases) or to the motorisation means of the sectional door.

All these operations can easily compromise the integrity? of the staves and the mantle during transport and installation. They can also weigh heavily on the assembly and installation times and costs of the rolling shutter or sectional door.

According to what is known in the sector, considerable problems can then be encountered in the operations of replacing deteriorated surfaces or even in the sole replacement of one or more surfaces. deteriorated staves of said coats. Especially in the latter case, it is necessary to be able to remove the single slats from the surface, an operation which involves the disassembly of the entire shutter and the request for space to remove the deteriorated slats and to insert the replacement ones.

Purpose of the present invention? making available a stave for making window frames which overcomes the drawbacks of the prior art mentioned above.

In particular, ? The object of the present invention is to provide a stave for making windows and doors capable of avoiding the insertion of the staves to obtain their hinged connection in the formation of the surfaces, especially the surfaces of rolling shutters.

Another purpose of the present invention ? to propose a slat for the construction of windows and doors which, due to the structural characteristics of the curls and the particular geometry of its overall profile, ? able to be used for the formation of the rolling shutter surface where this surface can be rolled up on a relative roller (or other winding means, such as for example on the spring cases on the spring holder axis) and collected in a spiral with a optimal overlapping of the slats, well compacted and with a reduced final overall diameter of the spiral that is formed when the shutter surface is rolled up.

Thanks to their geometric characteristics, the curls of the slats allow a slat to be hinged to another slat of the same type with the male curl of one facing the female curl of the other and stably hooked to the latter, without requiring operating spaces that do not are those strictly related to the width of the compartment or opening that the damper, or sectional door, to close or shield.

How will you see? in the continuation of this description, thanks to the possibility? of frontally hooking one slat to the other, the operations of possible replacement of one or more? slats that over time should be ruined for the most? different.

The staves can be transported suitably collected in a pack or bundle, also individually packed and protected by protective films of their surfaces, as well as not to be subject to scratches or other during transport and to be intact when (and during) installation of the damper.

Furthermore, with the slat object of the present invention it is possible to form coverings for sectional doors of a new conception. In fact, using the extremities? sides of the hedgehogs of the staves hooked together as seats for the pins or axles of the wheels or sliding bearings of the mantles in the respective guides - or tracks - of the fixed frame of said doors, the use of all other special hinged supports is avoided of known use to support, fix and allow the various superimposed staves to function. The mantle formed with the stave in question is self-supporting.

Said aims are fully achieved by the stave for making window frames and by window frames obtained with it, object of the present invention, which are characterized by what is contained in the claims which conclude the following description.

The main characteristics of the invention will be better highlighted by the following description of a preferred embodiment, illustrated purely by way of non-limiting example in the attached drawings, in which:

- figure 1 illustrates a profile of a slat for making doors and windows, object of the present invention, in a non-limiting example version, for forming the surface of rolling shutters and in a lateral schematic view;

- figures 1a and 1b show corresponding details on an enlarged scale of upper and lower curls of the stave of figure 1;

- figures 2, 3 and 4 illustrate on an enlarged scale with respect to figure 1 corresponding details of the loops of two staves in figure 1 in the phase of reciprocal hooking to realize the hinged connection of the staves; - figure 5 illustrates, in profile, a sort of ?chain? of slats as shown in the previous figures, forming a covering for a rolling shutter, in a vertical position;

- figure 6 shows, schematically, the profile of a spiral of slats which is formed during the winding of a roller shutter made with a plurality of? of staves referred to in the previous figures;

- figure 7 schematically illustrates an additional, optional and non-binding solution, for securely sealing the coupling between two slats; - figure 8 schematically illustrates the profile of a variant of the stave object of the present invention, in a non-limiting example version, for forming the skins of sectional doors or dividing or protective panels;

- figures 9, 10, 11 and 12 show corresponding hooking steps of two staves in the version of the stave referred to in figure 8;

- figures 13 to 16 show, schematically and all in profile, some possible constructive versions of the stave object of the present invention which can be made by extrusion.

With reference to the attached drawings, and with particular reference to figure 1, the stave in question, indicated globally with D1 (and D2 and Dn those following it) is used for the construction of doors and windows, in particular for the construction or composition, of screens, or mantles, or sheets, of rolling shutters and sectional doors.

As mentioned above, in the discussion it is specified that, for convenience? of exposure, the technical terms of usual identification of the stave in question in the sector will be reported as follows:

- the stave, normally identified on the market also as a slat or profile or band or panel, will be? indicated only with the terms stave or staves; - the folded longitudinal edges of the slats, commonly referred to as male or lower loop and, respectively, female or higher loop, will be indicated only as male loop and female loop;

- doors and windows such as shutters, sectional doors, panels, partitions or protection, will be indicated only with the terms shutters and, respectively, sectional doors;

- the sheets, or mantles, or leaves of said shutters and sectional doors will be indicated only with the term mantle or mantles.

Furthermore, the following description, by way of non-limiting example, is largely referred to the production technique of the type of staves in question and which provides for the profiling of strips of metallic material. In the description that follows you will? reference to staves whose curls are described and drawn with a circular sector profile. In practice, the curls of the staves in question may have the profile of any other flat geometric shape with an open perimeter and suitable for allowing the frontal hinged coupling of two successive staves.

How will it turn out? always from the description that follows, the stave in question can? can also be made with another production technique, such as for example by extrusion of a suitable material, metallic or plastic, according to a desired type of use of the stave.

With reference to figures 1 to 4, each stave has a body or profile 4 and the male and female end curls 1 and 2 with corresponding centers C1 and C2 and are substantially shaped as a sector of a circumference with a development greater than 180? - see figures 2, 3 and 4.

The internal diameter of the female hedgehog 2 ? slightly higher than the external diameter of the male hedgehog 1. Pi? precisely, the internal diameter of the female hedgehog 2 ? measure almost? equal, but slightly higher, to the external diameter of the male hedgehog 1 so that? with curls 1 and 2 of a first and second stave D1 and D2 hooked together, the internal surface of the female curl 2 is almost in contact with the external surface of the male curl 1, while allowing free rotational sliding, in the two directions, of one with respect to the other.

The female curl 2, given the geometry of its profile, offers a slit, or channel, F which allows the calibrated or exact passage of the transversal dimension 9 of the curl 1 when the first stave D1 is located next to, or alongside, the second stave D2 and with respect to this one inclined, or rotated, by an angle ??? that, with respect to the X-X axis that connects the centers C1, C2 and C3 and of which it will be said? afterwards, ? superior to other single angles ??? of mutual inclination of the slats D1, D2, Dn... during the winding of the shutter on the relative roller 10 - see figure 6.

As illustrated in figures 1 to 6, the male and female curls 1 and 2 are provided, at their respective ends: the first male curl 1 with a flat section 6; the second female hedgehog 2 of a flat stretch 7.

These flat portions 6 and 7 provide respective surfaces or faces for support and contrast between the male curl 1 of the first stave D1 and the female curl 2 of the second D2 of the same type in the phase in which the staves are subjected to traction during winding of the shutter, to the advantage of the mechanical resistance of the connection between the slats.

Again with reference to figures 1 to 6, according to a preferred embodiment of the stave in question, the centers C1 and C2 of the male 1 and female 2 curls and a center C3 of the connection 3 between the female curl 2 and the remaining profile 4 of the stave are lying on a single axis X-X (or piece of straight line) that ? the secant of a virtual circumference arc 5 on which the centers C1 and C3 are located and where the radius R of said virtual circumference arc 5 ? greater than the pitch P between loops 1 and 2.

According to a preferred embodiment, the profile 4 of the stave follows the line of said virtual circumference, to favor, as it may be called, then, the spiral winding of the shutter mantle. Yes ? in fact, it was found that thanks to the geometry of the curls 1 and 2, and of the remaining profile 4 of the stave in question, during the winding and unwinding operations of the shutter, the staves D1, D2, Dn... remain, by falling, aligned on the? axis X-X of each and all on the ideal vertical inside the guides or tracks 8 of the fixed frame of the shutter - see figure 5.

Is it reduced like this? the friction between the ends of the staves inserted in said guides or rails 8 and the rubbing of said ends? terminals against their walls, with noise reduction? due to the sliding of the ends? of the slats in the guides or rails 8.

Again with reference to figures 1 to 6 and how? already been indicated more above, loops 1 and 2 are obtained from a ribbon or band of metallic material (steel, or stainless steel or aluminum or other suitable material) by folding the longitudinal edges of said ribbon.

The P step between the sea urchins ? expected between 100 mm and 140 mm, preferably the pitch P ? of 127mm.

For a stave of the type in question, intended for the formation of roll-up shutters, the edges are folded over for a measure between 23 mm and 67 mm of the width of said strip (between 15% and 40% of this width) so to make curls of small dimensions in relation to the pitch P of the stave obtained (and in comparison with the curls of the known staves).

This feature, together with the profile of the remaining part 4 of the stave ? advantageous both for having the bilateral guides or rails of the fixed frame of the rolling shutter of extremely limited width, and for obtaining the compactness of the spiral of slats that forms during the winding of the shutter on the relative winding means. This reduces to a minimum the total encumbrance of the rolled shutter to the advantage of installation and assembly operations on site even in confined spaces (see figure 6).

As indicated pi? above, preferably the stave in question, in the version for rolling shutters, as shown in figures 1 to 6, has a pitch P of 127 mm and ? obtained from a starting strip with a width of 163.3 mm which can be obtained from a reel with a width of 1000 mm or 1250 mm or 1500 mm without appreciable waste of material (see table 2 below to be compared with table 1 above concerning known staves with step P11 and P97 and which is copied here for convenience of comparison).

TAB.1 Referred to the state of the art with pitch P115 and P97

TAB. 2 Referred to the stave in question with pitch P127

Furthermore, both in terms of the number of slats required per linear meter of height of the shutter, both in terms of weight per linear meter of the slats, and in terms of weight per m<2 > of a shutter, with the slat object of the present invention , as described and illustrated with reference to figures 1 to 6, the further advantages indicated in the following tables are also obtained:

TAB. 3 referred to the number of slats needed to compose 1 linear meter of height of a rolling shutter:

TAB. 4 referred to the weight per linear meter of staves obtained from 0.8 mm thick steel strip or 1 mm thick aluminum for staves known as P115 and P97 and for the stave in question with P127

TAB. 5 referred to the weight per m<2 > of a damper with known staves P115 and P97 and with the use of the stave referred to in the object with P127 in number as per TAB.

3 above:

From the tables above, in terms of economy of the material used, the advantages of the solution referred to in the stave in question are evident.

With reference to figure 7, with curls 1 and 2 hooked together, it could be useful to provide for the use of a clip 11 to hold the mutual hooking of curls 1 and 2 to avoid accidental unhooking between the staves due to accidental causes, for example, to incorrect opening and/or closing maneuvers of the damper. Said clip could be made of steel for springs and be randomly positioned on site between staves with spacing between clips depending on the length of the staves used.

With reference now to figures 8 to 12, the stave in question, in a version for the formation of sectional door surfaces, always has loops 1 and 2 with centers C1 and C2 on the same axis X-X and substantially shaped as a sector of the circumference with development greater than 180? and with the internal diameter of the female curl 2 slightly greater than the internal diameter of the male curl 1.

Also in this case the female hedgehog 2 of a D1 stave? provided with a slit F for the calibrated passage and hooking of the male curl 1 inside the female curl 2 of another stave D2 of the same type.

Also in this case the internal diameter of the female hedgehog 2 ? measure almost? equal to, but slightly greater than, the external diameter of the male curl 1 so that, with curls 1 and 2 of two staves D1 and D2 hooked together, the internal surface of the female curl 2 is almost in contact with the external surface of the male lock 1 while also allowing the one to rotate freely, in both directions, with respect to the other.

The connection between curl 1 of a D1 stave and curl 2 of a D2 stave? possible by inclining, or rotating, the slats by an angle ??? That ? superior to others ?n? corners ??? that the slats can engage with each other during the opening and closing of a sectional door. As ? known, in this case, the slats pass from a vertical arrangement with the sectional door closed to a horizontal arrangement with the sectional door open, or are they moved from the vertical plane of closure of the compartment to be shielded to another contiguous vertical plane and at 90? compared to the first.

In the case illustrated in figures 8 to 12, does the diameter of the male curl 1 ? calibrated so as to be able to accommodate and retain the axis or pin 12 of a bearing or wheel 13 used for guiding sectional doors in relative guides, or tracks, which form part of the fixed frame of the window - usually this pin or axis has a diameter of 11mm.

In this way the coupling of curls 1 and 2 of two staves D1 and D2 so? hinged also provides the axis of rotation and guidance of the staves D1 and D2 with respect to the rails of the fixed frame of the window without the need for further hinged supports for fixing to the staves and between the staves of the pins 12 of said bearings or wheels 13 for sliding the slats in the guides or rails of the relative fixed frame - not shown in the drawings.

With reference to figures 13 to 16, in the case of production of the stave in question by extrusion of a suitable metallic or plastic material, the profile 4 of the stave could, for example, provide, see figure 13, on its internal surface, a L-shaped fin 14, near? of the hedgehog 2, and a ?T? 15 near? of the hedgehog 2 usable for coupling to the slat of a panel or lamina 17. This panel or lamina 17 could? be of thermally insulating material, or - in the case of staves with profile 4 provided with windows for viewing the outside/inside of the compartment closed by the shutter - could it? be in transparent material cos? to allow this eternal/internal vision while keeping the compartment closed by the shutter completely shielded. The ?T? 15 should? be provided suitably spaced from the curl 1 to allow free coupling between staves D1 and D2.

Still by way of example, the ?T? 15 pot be used for hooking a gasket 16 to the stave in question which could have the same function as the clip 11 of figure 7. Said ?T? 15 could also be used for hooking to the stave in question a gasket 18 - see figure 15 - in thermoplastic material, which could have both the function of the gasket 16 and constitute a continuity? of thermal insulation between staves D1 and D2 hooked and each provided with a panel or lamina 17 made of thermally insulating material.

Lastly, still taking advantage of the extrusion technique in the construction of the stave in question, inside the male curl 1 it will be possible to a rib (or cantilever) 18 provided with an end bush 19 can be obtained. This end bush 19 could be used to provide the seat for fixing accessories at the head of the staves, such as for example end caps, sliding runners of the staves in the fixed frame rails of a shutter and more.

Returning to the solution referred to in figures 1 to 6 of the attached drawings, for the assembly of the damper it is possible to easily proceed according to the following steps:

- hooking of a number of staves D1, D2, Dn... until obtaining a partial covering that can be easily carried astride the winding means of the shutter and stably hooked to said means with the slats held outside the guides or tracks from the inside of the winding;

- then proceed with the complete winding of the shutter on the relative winding means until bringing the last free or terminal slat of the covering in correspondence with the upper invitation of the guides or tracks and in line with said invitation;

- does the entire shutter take place with the ends? bilateral sides of the slats which are gradually inserted into said guides or tracks;

- and the opening and closing limit switches are adjusted.

In the event that it becomes necessary to replace one or more? of staves D1, D2, Dn.... ? sufficient:

- provide for the complete winding of the shutter until bringing the terminal slat beyond the upper invitation of the guides or tracks;

- unroll the shutter outside the guides or tracks until the slats to be replaced are visible;

- release the slats to be replaced from the mantle while facing the light of the compartment shielded by the shutter;

- hook the new slats to the mantle, always facing the light of the compartment shielded by the shutter;

- rewind the shutter until bringing the last free slat of the curtain to the upper invitation of the guides or tracks;

- unroll the shutter again with the slats gradually inserted into said guides or tracks.

In the case as in figures from 8 to 12, for the assembly of a sectional door, can one? proceed with the hinged connection of two slats D1 and D2 by hooking the male curl 1 inside the female curl 2 according to the sequence indicated in figures 8 to 12 and then insert the rotation pin or axle 12 inside the male curl 1 of the wheel 13. Completed the coat with the hooking of ?n? staves D1, D2, Dn... hooked to each other as indicated above and the pins or axes 12 of rotation of the wheels 13 inserted in the curls 1, then proceed, according to what is known in the sector, to bring the whole to rest against the open guides or tracks of the fixed frame of the window - not shown in the drawings - and upon completion of said guides or tracks to enclose, in a sliding manner, said wheels 13 inside them and to connect the leaf to the motorization means of the window.

Also in this case, to hook the male curl 1 of a D1 stave inside the female curl 2 of a D2 stave, the staves must be inclined by an angle ??? greater than n angles ??? of mutual rotation of the slats during the? Opening and closing of the window thus having? the safety of the connection between the slats directly hinged to each other even during the phases of their reciprocal inclination due to the passage between the vertical and the horizontal position of the window, or during the passage at right angles of the window between two vertical planes to each other contiguous during the opening and closing of the window.

With the solution referred to in the stave in question - as already? indicated more above in this description, a new technique for making mantles for sectional doors is implemented as it avoids the use of hinges to be fixed to the slats, between slats, to obtain their hinged bond and the support of the guide wheels in the rails of the fixed frame of the window, with considerable savings in costs and installation times of the sectional door whose surface is self-supporting.

How more? repeated times, all of the above ? reported by way of non-limiting example so that in the embodiment of the present invention constructive variants of the stave in question could be envisaged, all falling within the protective scope of the claims which follow.

What? for example, the profile 4 connecting the loops 1 and 2 could? have a different profile from that illustrated in the examples referred to in the attached drawings, and the staves in question may have slotted windows, holes or other holes in their thickness.

Claims (16)

1. Stave for forming shutters, sectional doors, dividing or protective panels, or window frames in general, stave (D1, D2, Dn) comprising a body or profile (4) provided with at least one pair of curls (1, 2 ) obtained along the corresponding ends? or longitudinal edges for its hinged connection to another previous or subsequent stave (D2, D1, Dn) of the same type, characterized by the fact that the stave (D1, D2, Dn) ? provided with a male curl (1) having a center (C1) and a female curl (2) having a center (C2) and both curls (1, 2) are shaped according to a flat polygonal geometric figure with an open outline and angular development of its perimeter greater than 180?, in which the development of the perimeter of the female hedgehog (2) ? slightly larger than the development of the perimeter of the male curl (1) to allow the reciprocal and free rotational sliding, in both directions, of the female curl (2) of a first plank (D1) with respect to the male curl (1) of a second stave (D2) hooked to the first stave (D1), and in which the female curl (2) of the first stave (D1) ? provided with a slot or channel (F) for the calibrated passage and front hooking of the male curl (1) of the second stave (D2) inside the female curl (2) of the first stave (D1). 2. Stave according to claim 1, wherein each male and female curl (1, 2) with corresponding centers (C1, C2) are substantially shaped as a sector of the circumference with a development greater than 180?, with the internal diameter of the female curl (2 ) slightly larger than the external diameter of the male curl (1) so that with a male curl (1) of the first stave (D1) hooked to a female curl (2) of the second stave (D2), the internal surface of the female hedgehog (2) is almost? in contact with the external surface of the male curl (1) while allowing reciprocal and free rotational sliding, in both directions, of one with respect to the other, and in which the female curl (2) of the first stave (D1) ? provided with a slit or channel (F) for the calibrated passage and hooking of the male curl (1) inside the female curl (2) of the second stave (D2) with the second stave (D2) approached or facing the stave ( D1) and, with respect to the latter, inclined at an angle ??? that with respect to the axis (X-X) of the first stave (D1) , ? higher than ?n? individual angles ??? of mutual rotation, of the slats (D1, D2, Dn), hinged together, during the spiral winding of a shutter, on a relative winding means (10) or in any case during the opening and closing of the window placed to close the compartment shielded by it. 3. Stave according to claim 1 or 2, wherein each male and female curl (1, 2) with corresponding centers (C1, C2) ? provided at their respective end? free of a flat section (6, 7) defining a support and contrast surface or face between the male curl (1) of the first stave (D1) and the female curl (2) of the second stave (D2), at , a traction during the winding of a frame made up of staves (D1, D2, Dn). 4. Stave according to any one of the preceding claims, comprising a further center (C3) defined by the connection (3) between the male curl (1) and female curl (2) with the remaining profile 4 of the stave (D1, D2, Dn) and wherein the centers (C1, C2) of the male loop (1) and female loop (2) and the further center (C3) lie on a single axis (X-X). 5. Stave according to claim 4, wherein said single axis (X-X) ? the secant of a virtual circumference arc (5) on which the center (C1) of the male curl (1) and the further center (C3) are located, and in which a radius (R) of said virtual circumference arc ( 5) ? of a measure greater than a pitch (P) between the male and female curls (1, 2), and in which the remaining profile (4) of the stave (D1, D2, Dn) has a development substantially copying said arc of circumference virtual (5). 6. Stave according to any one of the preceding claims, comprising a pitch (P) between the male and female curls (1, 2) comprised between 100mm and 140mm. A stave according to any one of the preceding claims, comprising a pitch (P) between the male and female curls (1, 2) of 127mm. 8. Stave according to any one of claims 6 and 7, wherein the pitch (P) between the male and female curls (1, 2) is? of 127mm and ? obtained from a starting strip with a width of 163.3mm obtainable from a reel with a width of 1000mm, or 1250mm, or 1500mm in a metallic material. 9. Stave according to any one of claims 6 - 8, wherein each stave (D1, D2, Dn) ? obtained from a strip of metallic material the bilateral edges of which are folded by profiling to obtain the male and female curls (1, 2). 10. Stave according to any one of claims 6 - 9, wherein the measure of the linear development of the male and female curls (1, 2) is? between 15% and 40% of the width of said starting belt. 11. Stave according to claim 1, wherein the male curl (1) of a first stave (D1) and the female curl (2) of a second stave (D2) hooked together define support means configured as a seat for housing of a pin or axis (12) of a sliding bearing or wheel (13) of the window, made with a plurality of staves (D1, D2, Dn) hooked together frontally with a hinge, in guides or rails of a fixed frame of the window itself. 12. Stave, according to claims from 1 to 7, wherein each profile (4) of each stave (D1, D2, Dn) comprises, on its inner surface, tabs (14, 15) for hooking accessory elements , such as a thermal insulating or transparent panel (17) and gaskets (16, 18) and ? made by extrusion. 13. Stave according to claims from 1 to 7 and 12, wherein inside each male curl (1) is? there is a protrusion (18) with terminal bushing (19) for fixing accessory elements at the head of the stave (D1, D2, Dn). 14. Frame formed by a plurality? of slats hinged together, characterized by the fact that its coat is made with staves (D1, D2, Dn) according to any one of claims from 1 to 11 obtained by profiling. 15. Frame formed by a plurality? of slats hinged together, characterized by the fact that its coat is made with staves (D1, D2, Dn) according to any one of claims from 1 to 7 and from 11 to 13 obtained by extrusion. 16. Frame formed by a plurality? of staves according to claims 1 and 11, characterized in that the means for supporting the pins or axles (12) of bearings or wheels (13), guiding the window frame within relative guides or rails for sliding the staves (D1, D2, Dn) which form the mantle, are supplied by the male curl (1) of a first stave (D2) hooked to the female curl (2) of a second stave (D2) hinged to the first stave (D1) for the reciprocal coupling of called male and female curls (1, 2), so as to obtain a self-supporting coat.