ES2664109T3 - Roller shutter box with a fixing bracket for a window or door frame - Google Patents

Abstract

Roller shutter box (100) with an upper side (10a), a lower side at least partially open (10b) and an inner side (10d), where the roller shutter box has at least one fixing bracket ( 1) attached to the roller shutter box which, in turn, has a vertical joint core (2), a coupling element on the side of the frame (3) at the lower end of the linkage core and a coupling element of the side of the walls (4) at the upper end of the connecting core (2), where the connecting core extends along the inner side (10d) and between the upper side and the lower side of the shutter box roller so that the coupling element on the side of the walls (4) can be attached to a lintel above the roller shutter box and the coupling element on the side of the frame can be attached to a frame located below the roller shutter box, and where the measure of the height between the element coupling on the side of the frame (3) and the coupling element on the side of the walls (4), measured between its sides opposite each other (5, 6), represents at least 10 cm, preferably at least 15 cm and especially preferably at least 20 cm, characterized in that the roller shutter box consists of thermally insulated foamed material and that at least the linkage core (2) of the fixing bracket has a thermal separation element ( 9) that thermally separates the coupling element from the side of the walls (4) and the coupling element from the side of the frame (3).

Description

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DESCRIPTION

Roller shutter box with a fixing bracket for a window or door frame

The present invention relates to a roller shutter box with a fixing bracket according to the preamble of claim 1.

From document DE 20 2008 000 251 U1, a roller shutter box with a reinforcing body for fixing the roller blind is known, on the one hand, to a window or door opening frame and, on the other hand, a support structure, such as, for example, a window lintel.

From document FR 2 948 718 A1, a roller shutter box with a clamping bracket extending on an outer side of the roller shutter box between a window frame and a window lintel and which can be fixed to it is also known .

In both cases, the roller blind boxes consist of a relatively thin wall housing.

Window and door frames (hereinafter referred to as "frames") must be attached peripherally to the wall or masonry that surrounds them in each case. For greater readability, in the following, the terms "wall" or "masonry" will be used to refer to any enclosure that surrounds the frame, even if it is not to be part of a wall but to be manufactured from another material such as wood, or if the enclosure is already part of a floor covering. Here, for an easy distinction of other wall sections, the wall portion above a window or door frame is called "lintel", which also includes a bearing cover part or edge.

In general, the fixing of the frames to the masonry arranged laterally and inferiorly can be carried out directly, that is, without the use of intermediate parts. For this purpose, for example, screws are placed from the inner side of the frame through the frame in the surrounding masonry. An existing gap between the frame and the masonry can be bridged for alignment and adjustment with narrow pieces of wood or similar spacers. The rest of the gap is sealed with a foam. If a roller blind box is placed above the frame, the frame is conventionally attached to the roller blind box, the roller blind box being attached, in turn, to a lintel located above it and which is cast usually as a concrete lintel on the roller shutter box which, in this aspect, forms formwork and that in some variants penetrates or bites, for example, in grooves (in the shape of a swallowtail) undercut on the upper side of the roller shutter box. The length of the roller shutter box is greater than the width of the window or door opening located below, whereby the roller shutter box, by means of a corresponding projection, rests on the side wall sections, that delimit the opening or opening of the building. However, such a fixation represents a large overload on the roller shutter box, widely made of an insulating material, and in many applications it no longer satisfies the current requirements and provisions regarding civil works. In addition, the requirement of fixing the frame to the roller shutter box restricts freedom in terms of the material requirement and configuration of the roller shutter box, especially in terms of optimized thermal damping. The insulating material with which roller shutter boxes are typically manufactured typically comprises commercially available insulating materials such as EPS, XPS, mineral wool, organic or inorganic polymer, or what can be obtained in stores under the trade name of Neopor or Styrodur

Within the meaning of the present invention, the expression "roller shutter box" also encompasses external Venetian blinds or other hollow box-shaped spaces, which extend directly above window or door frames, generally, over all of its width, and which can accommodate, for example, external Venetian blinds, rolls, roller blinds or other equipment, for example, for protection against the sun, and which are made entirely or predominantly of the aforementioned materials. In general, the lambda value of the thermal conductivity of the insulating material from which the roller shutter boxes are made is less than 0.04 W / (m ■ K).

As the windows and doors of new buildings are designed increasingly higher and wider, and as climate change also causes even higher wind speeds to be feared, the regulations for fixing window and door frames to the surrounding walls and ceilings are increasingly strict. This applies not only to windows and doors, often with multiple vitrifications, whose vitrification can weigh up to 30 kg / m2, but also and especially due to wind loads acting on windows and doors, which increase with increasing window size and doors. Modern building materials with very good thermal insulation properties often have a large number of air inclusions, so that it is possible that, under certain circumstances, a roller shutter box does not have the required strength to absorb the forces acting about her.

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In this context, a problem is the one represented by the fact that, among others with the aim of better thermal insulation, the masonry of modern buildings is often constructed with majolica or highly filigree structure tiles or other materials that offer little mechanical adhesion with respect to the fasteners. In such a case, when also along the upper side of a wide window the frame is not sufficiently fixed or has a great play of movement, the anchors on the side walls are quickly overloaded, so that detachments of the masonry can occur or the material of the walls on the sides of the openings in the buildings.

Therefore, the traditional fixing of the upper beam of the window or door frames in a roller shutter box does not meet the most stringent requirements.

Therefore, the objective of the present invention is to enable an improved connection under a lintel of a roller shutter box integrated in a civil work to ensure continuity in the transmission of forces, between a window frame or door and a lintel, without introducing significant forces between frame and lintel through the thermally insulating material of the roller shutter box, whose material consists predominantly of the roller shutter box, especially preventing a thermal bridge through the stirrup of fixation.

The objective is achieved by a roller shutter box with a fixing bracket according to claim 1. The roller blind box consists of an insulating material and the fixing bracket serves to establish a transmitting connection between a window or door frame and a lintel, where the fixing bracket has a linkage core, at one end of which a coupling element corresponding to the side of the frame is arranged and at which other end a coupling element corresponding to the side of the walls is arranged , wherein the height measurement between the coupling element of the frame side and the coupling element of the wall side, measured between its sides oriented towards the frame or towards the lintel represents at least 10 cm, preferably at least 15 cm and especially at least 20 cm.

Claims 2 to 12 define advantageous configurations of the roller shutter box and the corresponding fixing bracket.

The separation between the coupling elements serves to bridge at least a part of the height and preferably the total height of the roller shutter box between frame and lintel.

By fixing the coupling element on the side of the wall on a lintel and the coupling element on the side of the frame in a frame it is possible to introduce the forces acting on the frame directly through the fixing bracket on the lintel. In this way, an overload is avoided on the frame fixations along the side wall sections of an opening in the building.

In a variant of the invention, the one on the side of the walls is glued to a window or door lintel.

Depending on the surface structure and the uniformity of the lower area of the lintel, it is possible to make the very thin adhesive layer (for example, a homogeneous adhesive layer less than 1 mm thick in the case of smooth and flat lintel areas) or deliberately as a thick adhesive layer (several mm up to, for example, 2 cm), for which a more special, more resistant and more stable mounting foam with a high adhesive force, currently obtainable under the trade name of Cosmopur 1716 adhesive, 2-K-PUR.

In this regard, the coupling element on the side of the frame and the coupling element on the side of the walls are separated from each other such that, between the coupling element on the side of the frame and the coupling element on the side of the walls, at least a part of a roller shutter box can be arranged. Since the forces acting on the window or the door are transmitted (partially) by means of the upper frame member and the fixing bracket on the lintel, the roller shutter box receives no load, or in any case receives an essentially lower load that in the case of the use of the roller shutter box as a connecting element that transfers loads between frame and lintel.

Within the scope of this description, the expressions "above", "below", "interior" and "exterior" are used considering a window placed on the wall.

The measure of the height between the coupling element of the frame side and the coupling element of the wall side, measured between its sides oriented towards a frame or towards a lintel, can be in the range of 100 cm to 50 cm , preferably in the range of 15 cm to 35 cm, and preferably in the range of 20 cm to 30 cm. In practice, the height of the fixing bracket is rather 25 to 30 cm or also greater and, in general, is adapted to the height of the roller shutter box used.

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So that the fixing bracket can be adapted to various roller blind boxes, in one embodiment, it is possible to adjust the height measurement of the fixing bracket. For example, the attachment core of the fixing bracket may be made of two or more parts, wherein the parts of the linkage core are releasably linked to each other in predetermined positions corresponding to predetermined height measurements. The parts of the binding core can be configured among others as U-profiles, where, at predetermined distances, the U-profiles have recesses through which it is possible to guide a fixing means, so that the U-profiles can be joined together. in predetermined positions in a releasable way. In this case, the fixing bracket can be used for roller blind boxes of different height measures.

The upper and lower coupling elements can independently present in each case a fixing flange that can also be present in the form of a fixing plate that eventually has reinforcement ribs. The flange can be attached on its flat side to the lintel or the frame and fixed to it, for example, by gluing and / or screwing. From a practical point of view, for this purpose, the flange may have a corresponding amount of perforations.

In one embodiment, at least the coupling element on the side of the walls is designed for gluing on the underside of a lintel; especially, they are configured as a horizontal flange.

For gluing, the flange can have special recesses and / or bead breakages, in which the adhesive material can penetrate and, in this way, an especially durable joint can be made available. In addition, such a flange should have an area of at least 50 cm2, preferably at least 80 cm2, for a glue joint, viewed from above from the lintel.

If there is a matching recess on the upper side of the frame to be fixed, the flange on the side of the frame can also be fully or partially inserted into this recess, so that the connection between the frame and the fixing bracket has a continuity of The forms in contact. It is also possible to fit between the flange on the side of the frame and the frame.

In one embodiment, the minimum spacing between the flat sides of the separation flange has been chosen such that a predetermined shutter box can be provided to be placed tightly between the coupling legs, for which it is also possible provide or practice recesses in the roller shutter box.

It is also conceivable that a part of the upper frame of the window frame is introduced into the lower side of a roller shutter box, so that the fixing bracket does not necessarily have to bridge the total height of the roller shutter box. Also the upper side of the roller shutter box could have a recess, in which a section of a lintel is housed.

In another embodiment, the coupling element or the flange may also extend in an essentially vertical direction and be designed for attachment to the inner surface of a window frame.

In one embodiment of the invention, the fixing bracket, seen in a side view, corresponding to a cross section through the bridged roller shutter box, has a configuration of Z, C or L. Other shapes or complements are also conceivable. in the form of Z, C or L, where, as regards the fundamental shape of a vertical joint core and an essentially horizontal lower leg with coupling elements at the upper end of the vertical leg, as well as the leg horizontal bottom. For its part, the coupling elements can take the form of legs or flanges, angled pieces, etc., which completes the fundamental form of the "L" or "C" or (although it is a less preferred variant), the "Z" of the complex or derived forms is completed. In particular, the coupling elements can be identical to the lower and / or upper horizontal souls of the form L or C or Z.

This fundamental form allows the arrangement of the fixing bracket with its vertical leg vertically along an inner side of a roller shutter box, where a lower leg of the form Z, C or L extends below the box of roller shutter from the inside out to the top of the upper frame and to be firmly attached to it. This takes into account the usually present displacement of the roller shutter box outwards, where the vertical leg of the fixing bracket cannot extend correspondingly deep inside the roller shutter box, for when there it could collide with the Armored roller blind or with roller drum curtain. Also on the upper side of the roller shutter box, an extension is provided along the upper side outward (C-shaped) or inward (Z-shaped) of the foot of the fixing bracket to improve stability, where the C shape is again preferred with respect to the Z shape, since in this case the upper leg is hidden by the roller shutter box and the visual aspect of the lintel or of an ambient cover is not altered.

The horizontal legs, especially the lower leg, can have an adjustable length. Correspondingly, it is possible to adapt the relative arrangement of a frame to be fixed within the opening in the

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wall and with it also with respect to a roller shutter box located under the lintel.

For example, in one embodiment, it is possible to fix a flange on the side of the frame along the first leg continuously or discretely in various predetermined positions, for example, by means of a guided groove-block type joint.

The connection with a continuity in the transmission of the forces between the coupling element on the side of the walls of the fixing bracket and a lintel can eventually be improved by making the flat side of the flange on the side of the flanged wall present a profile, preferably as elevations in the form of pyramids, a wavy form like elevations in the form of barbs. By means of the profile, it is possible to increase the friction between the flange on the wall side and the lintel. In the case of thin flanges (sheets), profiling also serves to increase stability.

In one embodiment, it is envisioned that the flange on the side of the frame is displaced upwards with respect to the coupling element on the side of the walls, that is, upwards. A projection located in a frame can therefore penetrate into a deepening between the flange on the side of the frame and the coupling element on the side of the frame.

In one embodiment, the flat sides that can be inserted into a flange of the flange on the side of the walls and the flange on the side of the frame that can be coupled with a frame are oriented essentially parallel to each other and essentially octagonal with respect to the bonding core.

The coupling element on the side of the walls may be supported with respect to the connection core, for example, by means of an angle plate. The angled plate stiffens the joint between the coupling element and the connecting core, so that, as a whole, the fixing between a lintel and the coupling element on the side of the walls can receive loads, especially with respect to the transverse forces and moments that act on the fixing bracket.

For the stable and broadly rigid connection between the vertical linkage core and one or both horizontal legs, which have the coupling elements, it is possible to provide a corner reinforcement or a bracing. In one embodiment, cross-linking nodes consisting of strips of sheet welded together are provided for this purpose.

It is advantageous that at least the linkage core on the side of the walls or the flange is coupled somewhat in solidarity with the upper side of the roller shutter box. especially when gluing a flange of this type it is possible to glue, then, the upper side of the roller shutter box at least in the immediate surroundings of the flange also in full area with the bottom area of a lintel, with resulting in a secure and dense connection between the lower side of the lintel and the upper side of the roller shutter box, where the loads transmit the loads predominantly by the wind through the stably mounting bracket of the roller shutter box and stronger deformations or loads are prevented by the roller shutter box. However, for joining the upper side of the roller shutter box with the lintel, it is possible to replace the adhesive material used for the flange with other adhesive materials, as long as the upper side of the roller shutter box does not close. a sufficiently tight way with the bottom side of the lintel.

The fixing bracket can consist of several parts that can be stably connected to each other in order to ensure continuity of the contact forms and the transmission of the forces. For example, an upper coupling element may be fixed to a lintel which, on the one hand, may be rigidly attached to the upper part of the fixing bracket, or which is a lower coupling element, for example, a inspection cover for the roller shutter box and which, if necessary, can be removed along with it from the roller shutter box and the remaining part of the joining bracket and then be again attached to these parts to ensure continuity of the retransmission of the forces and preferably rigidly.

Eventually also the inspection cover or another closing cover of the roller shutter box as such can be made of a sufficiently stable material that, at the same time, forms the lower coupling element of the fixing bracket. The fixing bracket can also be an integral component part of a roller shutter box, which is also described below. The angled sheet or a cross-linking node are surrounded during foaming of the shape of the roller shutter box by the material of the roller shutter box and represent a secure connection with the fixing bracket. The coupling elements remain accessible through the walls of the roller shutter box. Eventually recesses can be prepared in the walls of the roller shutter box for direct access to the fixing holes in the coupling legs. These recesses can be sealed after mounting the fixing bracket by means of pins or plugs with the material of the roller shutter box.

The connection core has a thermal separation element, which thermally separates the coupling element from the side of the walls and the coupling element from the side of the frame. The element of

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The thermal separation may also comprise, in particular, the entire lower horizontal leg or part thereof and / or the coupling element on the side of the frame to avoid a thermal bridge between the coupling element on the side of the frame and the interior space.

In one embodiment, the separation element extends above the lower leg to the upper leg C or to the coupling element on the side of the walls, but does not comprise its leg or its coupling element. And in yet another embodiment, the totality of the bonding soul consists of a material that is not conductive to heat.

In one embodiment, the thermal separation element is made of a material with a specific thermal conductivity in the range of 0.001 W / (m * K) to 0.6 W / (m * K), preferably in the range of 0, 02 W / (m * K) at 0.3 W / (m * K) and especially preferably, in the range of 0.03 W / (m * K) to 0.18 W / (m * K) . Materials with such specific thermal conductivity are available with sufficient stability and prevent the formation of thermal bridges.

The thermal separation element may consist entirely or predominantly of a composite fiber material.

Assuming that there is sufficient stability, the fixing bracket can consist of extremely diverse materials and their combinations such as, for example, steel, synthetic material, GFK, aluminum, wood, composite wood materials, stabilized cardboard and cardboard, mineral fibers and PVC mesh fabric, without this constituting a limitation.

The present invention relates to a roller shutter box made of insulating material, with an upper side, a at least partially open bottom side and a bottom side, wherein the roller shutter box has at least one fixing bracket that , on the other hand, it has a vertical joint core, a horizontal connection core with a coupling element on the frame side at the lower end of the connection core and a coupling element on the side of the walls at the upper end of the tie core, where the tie core extends between the upper side and the lower side of the roller shutter box in such a way that the coupling element on the side of the walls (4) can be attached to a lintel by above the roller blind box and the coupling element on the side of the frame can be attached to a frame located below the roller blind box.

In general terms, the connection core extends along the inner side (10d) of the roller shutter box. However, when you want to lower a roller shutter or a sunshade element on the inner side of a window from the roller shutter box, it is necessary to exchange the outer wall and inner wall roles of the roller shutter box, so that the Bonding soul can then move along the outer side.

The fixing bracket can be especially integral part of the roller shutter box, as described in more detail in the following.

In one embodiment, the coupling element on the side of the walls on the upper side of the roller shutter box and the coupling element on the side of the frame on the lower side of the roller shutter box may be attached. The fixing bracket can therefore surround the roller blind box at least partially so that the roller blind box can be arranged tightly between the coupling element on the side of the walls and the coupling element on the side of the frame .

It is also convenient that the fixing bracket is integrated in the roller shutter box so that at least the linkage core, preferably also one or both coupling elements, does not protrude from the outer area of the roller blind box. The roller shutter box and the integrated fixing bracket can be integrally coupled to the interior area and preferably also with the lower side of the roller blind box, without projecting elevations in the space, which could hinder subsequent processing of the interior walls, for example, wallpaper and paint.

The fixing bracket can be introduced, for example, during the manufacture of the roller blind box before foaming in the mold for the roller blind box, so that, thanks to the foam, the fixing bracket becomes an integral component part of the roller shutter box.

The roller shutter box can also have, for example, additional recesses that facilitate access to the coupling elements. Such recesses can be closed after assembly by means of suitable pins or plugs.

Other advantages, features and possibilities of application of the present invention will become apparent with the aid of the following description of preferred embodiments and the corresponding figures:

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Figure 1, a perspective view of a fixing bracket according to the invention;

Figure 2, a cross-sectional view of a fixing bracket according to Figure 1 coupled

with a frame and a lintel;

Figure 3, a perspective view of a roller shutter box according to the invention with an integrated fixing bracket according to the present invention;

Figure 4, a variant of the fixing bracket according to Figure 1 with a reinforced flange 4 '; Figure 5, a section through a roller shutter box mounted with the fixing bracket 1 'according to Figure 4;

Figure 6, another alternative embodiment of a fixing bracket 101, made of profile plates;

Figure 7, a section through a roller shutter box mounted with the fixing bracket 101 of

according to Figure 6;

Figure 8, the embodiment of a fixing bracket according to Figure 4 but with another type of fixing by means of a profile rail;

Figure 9, an embodiment similar to that of Figure 8, in which the role of the flange and that of the profile rail have been exchanged;

Figure 10, a view of an embodiment similar to that of Figure 7 with a connection flange glued to a window lintel;

Figure 11, a view of the front or rear side of a roller shutter box in a variant

according to Figure 8, wherein the profiled rail 25 is glued to a lintel; Y

Figures 12 to 16, other variants of a fixing bracket with a fixing flange glued to a lintel of

window.

The perspective view shown in Figure 1 of the fixing bracket 1, which can also be recognized in greater detail in Figures 2 and 3, is provided in accordance with the present invention to obtain a joint with continuity in the transmission of the forces between a window or door frame 14 and a lintel 15, where the latter can also be formed by a cover section (as shown in Figures 2, 4 and 5). The fixing bracket 1 has a connecting soul 2 that extends vertically. At the end of the bonding soul 2, an coupling element 3 is arranged on the side of the frame, which extends in an approximately orthogonal direction with respect to the bonding soul 2 and which has a flange 3a that must be applied with its flat side lower 5 on the upper crossbar 14 of a frame and join it.

This configuration gives the fixing bracket essentially an L-shape. A coupling element 4 on the window side with a flange 4a for attaching and fixing on a lintel is located at the other end of the binding core 2. In this embodiment, the coupling element on the side of the walls 4 extends against the vertical linkage soul 2 in a reduced degree with respect to the horizontal direction, whereby the fixing bracket 1 in the side view is essentially L-shaped. Especially in the case of other coupling elements 4 or 4a that discharge more horizontally, this form of L gradually transforms into a form of C.

To apply the fixing bracket 1 to a lintel (not shown in Figure 1), the flange on the side of the walls 4a is pressed by means of its upper flat side 6 to the lower side of a lintel 15. Through the perforations 16 provided on the flange 4a, then it is possible to insert a screw in each case and screw it, for example, by means of a pin in the lintel.

In this regard, screwing, unlike that shown in Figure 2, can take place obliquely on the cover in a lintel 15 above the roller shutter box 100 from the inside of the roller shutter box. Assuming that the coupling element on the side of the walls extends in the region above the hollow space of the roller shutter box, it is possible to introduce screws or other fasteners also from the hollow space of the roller shutter box through of its upper wall in the lintel.

To increase the stability of the fixation, the flange on the side of the walls 4a has a transition to an angled sheet 7 angled downwards, which supports the flange 4a on the side of the walls, in the connection core 2.

The flange on the side of the frame 3a can be attached to a frame 14 (shown in Figures 2 and 3). In the embodiment shown, the flange 3a is arbitrarily suitable for both gluing, screwing or alternate incidence with continuity of the shapes in contact with an upper frame member. The flat side 6 oriented towards a flange of the flange on the side of the walls 4a and the flat side 5 oriented towards the frame of the flange on the side of the frame 3a extend in an essentially parallel direction with each other and essentially orthogonal with respect to the soul of connection 2. Consequently, the lower sides of the lintel and the upper side of the frame, which also extend essentially orthogonal with respect to the connection soul 2, can be joined in a simple manner with the flanges 3a or 4a.

The coupling element on the side of the frame 3, especially that with the flange 3a attached to the frame and the coupling element on the side of the walls 4 and thereby also the interior space behind the roller shutter box are thermally separated from each other ; for this purpose, the connection core 2 has a thermal separation element 9, which comprises a part of the vertical leg L and the lower leg L. In this regard, the thermal separation element 9

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It is made, for example, predominantly of a fiber composite material with a specific thermal conductivity in the range of 0.02 W / (m * K) to 0.3 W / (m * K). Therefore, the vertical leg 2 consists of a rectilinear upper section and an angular section configured as a thermal separation element 9, which are assembled together in the region 19, for example, by means of a plug connection with continuity of the shapes in contact, preferably by a snap fit. In the same way, the coupling elements 3 to 20 are assembled together by means of a corresponding plug connection. It is understood that the leg L 2 inclusive of the angle section 9 together with the coupling element 3 (and without or with the flange 3a) could also be made of a single piece of a material that is not conductive to heat, but stable as , for example, a synthetic fiberglass material (GFK).

The thermal separation element 9 prevents the formation of a thermal bridge between the flange 3a applied possibly relatively close to the outer side of the upper frame member and the interior space of the corresponding building.

The measure of the height between the coupling element on the side of the frame 3 and the coupling element on the side of the walls 4, measured between the sides 5, 6 oriented towards a frame 14 or towards a lintel 15, is in the range of 20 cm to 35 cm, so that above the frame 11 and below the lintel 15 it is possible to arrange a roller shutter box 100. However, the forces that can act on the window or door frame, not they are introduced in the roller shutter box 100, because the fixing bracket on the frame 14 or its beam guides these forces in the lintel 15, without the roller blind box 100 being subjected to a significant load.

The fixing bracket 1 described together with Figure 1 has been represented in Figure 2 as an integral component part in the cross-sectional drawing of a roller shutter box 100 according to the invention coupled with a lintel 15 and a frame 14.

In Figure 2, it is therefore recognized a cut through a roller shutter box 100 with the integrated fixing bracket 1, described above, that is, together with a cut through a lintel 15 or a corresponding floor cover and with a window or door frame 14.

In Figure 3, a partially exploded perspective view of this embodiment is reproduced.

The rolling shutter box 100 consists essentially of four walls that extend orthogonally with respect to the plane of the paper, which forms a hollow space to accommodate a winding drum, not represented in this case, and a rolled shutter, also not represented in this case. . The roller shutter box has an upper wall 10 with an upper side 10a, an inner wall 11 with an inner side 11a and a lower wall 12 with a lower side 12a, where the lower side 12 is here represented as a cover of separate applicable closure, which facilitates access to the parts housed inside the roller shutter box. Parallel to the inner wall 11, it extends on the outer side of the upper wall 10 from an outer wall 13 with an outer area 13a. The lower wall 12 closes the lower opening of the box and in particular leaves a groove free for the extraction and introduction of a roller shutter. On the unrepresented front sides of the roller shutter box, there is a support for housing a winding drum, where corresponding lattices, which are also object of the invention, of course do not have any winding drum or a corresponding support .

The fixing bracket 1, also shown here in section, consists essentially of a vertical leg 2, a horizontal lower leg with the coupling element 3 and a bent sheet applied on the upper exterior of the vertical linkage soul 2, which consists of a flange 4a that extends horizontally, whose far end with respect to the flange 4a is curved and is connected to the connecting core 2 and, thereby, additionally supports the flange 4a.

The fixing bracket shown in Figure 2 corresponds exactly to the perspective view also shown in section in Figure 1 or in Figure 5 viewed laterally. The fixing bracket coincides with the holding bracket 1 'shown in Figure 4 in a perspective view.

Figure 3 shows a corresponding perspective view, in which the roller shutter box has been represented only in a schematic way and is actually extended in a longitudinal direction on both sides by means of the fixing bracket 1. The number of fixing stirrups a along a roller shutter box, of course, depends on the total length of the roller shutter box, more precisely said, on the total length of the frame or on the upper beam 14 of the frame that extends below the box of roller blind.

It is convenient that the fixing bracket be arranged in general terms at maximum distances to the next side wall or between each other of approximately 1 to 1.5 m.

The flange 3a, which is applied to the horizontal leg 3, joins the upper crossbar 14 of a window or door frame. For this purpose, the flange may, for example, have fixing holes made in the crossbar 14. However, the flange 3a may also have protrusions or recesses on its lower side, which affect complementary recesses or projections on the upper side of the framework.

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The bottom wall 12 can also be manufactured separately; in particular, the fixing bracket 1 or its horizontal leg 3 can have a separation location in position 20, for example, a stable plug connection, whereby the final section of the horizontal leg 3 together with the flange 3a it can be introduced into a corresponding mold for the manufacture of the lower wall 12, whereby these pieces are eventually manufactured separately and only during the assembly of the roller shutter box and the fixing bracket are assembled together.

Since, in practice, the forces that occur (especially wind loads) are predominantly horizontal forces, whose direction coincides with a horizontal line within the plane of the paper of Figure 2, what is essentially of interest is that the stirrup of fixing 1 absorbs precisely those forces that act in the figures to the left or to the right and that through the horizontal leg 3 and the vertical leg 4 as well as the flange 4a, transfer them to the cover or to the lintel 15.

The result of this is that, for an effective transmission of such corresponding forces and moments, especially the transition from the vertical leg 2 to the upper coupling element 3 or the upper leg 4, they must have a special angular stiffness, and that also the union of the coupling element 4 with the lintel 15 or with the cover has a good annular rigidity. In this case, the preferred embodiments are oriented in accordance with most of the figures depicted.

In the embodiment according to Figures 4 and 5, the flange 4 'has an essentially greater discharge and in the assembled state extends to a greater extent upward along the upper side 10a of the upper wall 10. The fundamental shape of the stirrup 1 'in its side view, therefore, consists of a C-shaped opening, where the flange 4' with a larger configuration forms the upper leg of the C.

In all the embodiments shown here, the outer sides of the fixing bracket, that is to say the lower area of the horizontal leg 3 including the flange 3a, the inner side of the vertical linking core 2 and the upper side of the flange 4a is integral with the contour or the corresponding outer areas of the roller shutter box. This is achieved, for example, by introducing into one mold one or more fixing brackets distributed along the length of the roller shutter box in a corresponding manner for foaming and manufacturing of the roller shutter box.

In a variant, not shown here, of a fixing bracket according to the invention, instead of a top fixing flange 4a or 4 'or in such a flange, a fixing anchor is provided which is concreted in the cover or a lintel above the roller shutter box. This provides a particularly stable connection between the fixing bracket 1 and the lintel 15. In the case of such a variant, a corresponding coupling element may be suitable for fixing the frame, especially when the exact realization of the frame in The concrete moment of the fixing bracket has not yet been fixed.

The embodiment according to Figure 6 shows in a side view or in section a fixing bracket 101 also in the form of C, where, however, the vertical leg 102 and the horizontal legs 103 and 104 have been made of profiled sheet and the upper leg C 104 has been made with a length manifestly greater than that of the flange 4a in the first embodiment.

To stiffen the angle between the vertical leg 102 and the upper leg 104 in this embodiment, at least one cross-linking node 107a, 107b (in the specific case, two cross-linking nodes) of struts is provided. In this case, the struts consist of simple sheet strips, joined together at a central point and from there they extend in a star-shaped direction in three directions so that the free end of the one of the three plates forming the node The cross-linking is exactly connected to the corner transition between the vertical leg 102 and the horizontal leg 104 and the free ends of the other two plates are connected separately with respect to this corner point to the vertical leg 102 or with the horizontal leg 104 .

This results, together with a minimum consumption of materials, a very rigid angular joint between the vertical leg 102 and the horizontal leg 104. The individual joints between the plates 107a, 107b, the tie core or the leg 102 and the flange 104 can be established in particular by welding. Of course, instead of the plates, it is also possible to use round bars or bars with other types of cross-section to manufacture the cross-linking nodes.

At the same time, the embodiments of Figures 4 to 7 have on their upper legs 4 'or 104 fixing possibilities on the lintel 15 or on a cover over relatively large distances, measured along the longitudinal extension of the leg or 4 'or 104 flange, which results in a fastening with a special angular stiffness of the vertical leg 2 or 102, so that its horizontal end can hardly be deflected in a horizontal direction (from the inside out and vice versa). This ensures the transition of the corresponding forces and moments from frame 14 to lintel 15.

In the present embodiment, to the right and to the left, in addition to a profiled rib of the sheet profile from which the vertical leg 102 and the horizontal leg 104 are manufactured, there are two corresponding cross-linking nodes

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attached to the corresponding sections of the legs 102, 104.

Figure 7 again shows the specific embodiment according to Figure 6 together with the lower leg 103 separated from the upper leg which, in this case, is manufactured at the same time with the lower wall 112 of the roller shutter box. When the lower side of the roller shutter box is closed by means of a closing cover 112 (remaining, of course, the exit groove for the roller blind) both legs 102 and 103 are preferably joined in the range of their final sections, in where the joint can be a simple groove and spring joint, a screw joint or also any joint that ensures the continuity of the contact forms and / or a joint using adhesive material.

From a practical point of view, an angular stiffness is not interested at this junction point, since any horizontal load that, by means of wind pressure or by underpressure caused by wind currents on the window or on a door and the upper beam 14, are transmitted exclusively in the longitudinal direction of the lower leg 103 on the connecting foot, where the vertical leg 102 introduces this force, thanks to the angularly rigid connection with the upper leg, without a horizontal movement significant of the lower end of the joint core 102 on the cover or on the lintel 15.

What is essential is only the union with continuity in the transmission of the forces and preferably with continuity between the contact forms, between the horizontal leg 103 and the lower end of the vertical leg 102 in the horizontal direction, which, however, of no way excludes an angularly rigid joint in this region.

In practice, the relative vertical movements between the frame 14 and the cover or the lintel 15 are presented (not considering possible earthquakes) to an essentially reduced degree and can be compensated without major problem by corresponding slight deformations of the box roller shutter and / or fixing bracket, without having to transmit any force, because the corresponding transmissions of forces in a vertical direction between the walls and a lintel or a cover are transmitted with sufficient security. Alternatively, for the transmission of horizontal and vertical forces, of course, both corner transitions between the vertical leg and both horizontal legs can also be established analogously with angular stiffness.

In Figure 8, another variant is shown in which the upper flange 4 'of a fixing bracket, for example, in accordance with Figure 4 can be slid on a profiled rail 25 with lateral bends and can be fixed, by example, with the help of one or more fixing screws. The rail profile can be described as a rectangular profile with U-shaped side edges, whose open U-sides are facing each other. This U-shape is sized so that the flange's side edges (preferably with little play) can be housed in them, the flange being wider than the free separation between the opposite U-shaped shapes, but also narrower that the free separation between the bottom of the grooves formed by the shape of a U-profile. On the other hand, the profiled rail 25 can be fixed by screws or by adhesive to the lintel 15 or of the cover or according to a variant being included in the concreting on the lintel 15 or the cover and protruding sufficiently so that the flange 4 'can be slid from a front side of the profiled rail. Figure 9 shows a variant in which the role of profiled rail and flange has been exchanged in comparison with the embodiment of Figure 8, that is, the flange 25 'is fixed on a cover or on a lintel 15 (for example , it has been included in the concreting provided with an attached anchor), while the coupling element 4 is configured as a profiled rail adapted to the flange 25 '.

Figure 10 again shows a roller shutter box 100 fixed to a frame 14 and a lintel 15; in this case, the immobilization and fixing of the fixing bracket 101 coincides with those of Figure 6. Here, however, the upper flange 104 of the fixing bracket 101 is glued by means of an adhesive layer 30 to the lintel 15. Also the upper side of The roller shutter box can be glued to the lintel 15, or the gap between the upper side of the roller shutter box 100 and the bottom side of the lintel 15 has been filled with another material, for example, a mounting foam 31, which in comparison with the adhesive layer 30, it does not necessarily have the same adhesion properties.

Also the other variants represented in Figures 11 to 16 show all of them fixing brackets that are directly or indirectly glued to the lintel 15. In this regard, in the embodiment according to Figure 11, a fixing bracket corresponding to the Figure was used 8, where a profile rail 25 is glued to a flat top side to lintel 15. In all glued variants, the glue area in the top view or in the profile plan on lintel 15 should be 80 cm2 or more.

In Figure 12, the upper flange 4b has been further modified with respect to the flange 4a so as to present a larger area and lateral souls 24, and having a space 26 to accommodate a very good adhesion adhesive, for example, in the form of a foam.

Figure 12-1 shows a corresponding detail of the fixing bracket 1 with the modified flange 4b and the souls 24.

In Figure 13, another variant of the fixing bracket 1 is shown with another modified fixing flange 4c, which has bent souls in L 27 on its upper side, which form a detached housing space 26 'for a

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adhesive, as can be best recognized in the detailed view according to Figure 13-1.

In Figure 14, another variant of a fixing bracket 101a is shown, configured analogously to the fixing bracket 101 in Figure 6.

In this case, the modified flange 104a has additional vertical souls 124 which, again, define housing spaces 26 for an adhesive material or adhesive foam, which can again be clearly recognized in the detailed view according to Figure 14-1.

In Figure 15, another variant 101b of a fixing bracket similar to the fixing bracket 101 shown in Figure 6 can be recognized; in this case, the fixing flange 104b essentially coincides with the fixing flange 104 of Figure 6, however, additional compression tapes or sealing strips 105 have been provided, which also define a housing space 26 for adhesive material. This has also been represented again in more detail in a detailed view according to Figure 15-1. Another variant 101c more than a fixing bracket similar to Figure 6 has been shown in Figure 16; in this case, the flange 104c has spaces in the form of a swallow tail 26, which serve to house an adhesive material and which also has to ensure a better anchorage of the flange 104c with a lintel 15. Also in this case it has been represented again an adhesive layer 30, wherein the gap between the upper side of the roller shutter box 100 and the lower side of the lintel 15 can be filled with the same adhesive material 30 or also with a simpler mounting foam and with a smaller capacity of adhesion.

This applies of course analogously also for the other embodiments that have been represented in Figures 10 to 15.

List of reference numbers

 1, 1 ', 101

 Fixing bracket

 2, 102

 Union soul

 3, 103

 Frame side coupling element

 3rd

 Frame side flange

 4,

 Wall side coupling element

 4th, 4 ', 104

 Wall side flange

 5

 Frame oriented side

 6

 Side facing the lintel

 7

 Angled plate

 8

 Vertical section

 9

 Thermal separation element

 100

 Roller shutter box

 105

 Sealing strip

 10th

 Upper side of roller shutter box

 11th

 Inside side of roller shutter box

 12th

 Bottom side of roller shutter box

 13th

 Outside side of roller shutter box

 14

 Framework

 fifteen

 Lintel

 16

 Drilling

 17

 Screw

 18

 Spike

 24

 soul

 25

 Profile rail

 26, 26 '

 Accommodation spaces

 27

 soul

 30

 Adhesive layer

Claims (12)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 60 1. Roller shutter box (100) with an upper side (10a), a lower side at least partially open (10b) and an inner side (10d), where the roller shutter box has at least one stirrup fixing (1) attached to the roller shutter box which, in turn, has a vertical joint core (2), a coupling element on the side of the frame (3) at the lower end of the connection core and an element of coupling on the side of the walls (4) at the upper end of the connection core (2), where the connection core extends along the inner side (10d) and between the upper side and the lower side of the box roller blind so that the coupling element on the side of the walls (4) can be attached to a lintel above the roller shutter box and the coupling element on the side of the frame can be attached to a frame located below of the roller shutter box, and where the measure of the height between the ele The coupling side of the frame side (3) and the coupling element of the side of the walls (4), measured between their sides opposite each other (5, 6), represents at least 10 cm, preferably at least 15 cm and especially preferably at least 20 cm, characterized in that the roller shutter box consists of thermally insulated foamed material and that at least the linkage core (2) of the fixing bracket has a thermal separation element ( 9) that thermally separates the coupling element from the side of the walls (4) and the coupling element from the side of the frame (3). 2. Roller shutter box (100) according to claim 1, characterized in that in a side view it has the approximate shape of Z, C or L, wherein the linking core comprises the vertical leg of Z, C or L; the lower leg of Z, C or L has the coupling element on the side of the frame and the upper leg of Z or C or an upper end of the vertical leg of L comprises the coupling element on the side of the walls. 3. Roller shutter box (100) according to claim 1 or 2, characterized in that at least the coupling element on the side of the walls of the fixing bracket is designed for gluing to the bottom side of a lintel. 4. Roller shutter box (100) according to one of claims 1 to 3, characterized in that one of the coupling elements, or both, has a flange (4a) with a flat side (6) for attaching and fixing to a lintel or a frame. 5. Roller shutter box (100) according to claim 4, characterized in that at least one of the flanges (4a, 3a) has a non-rectangular profile cross section and / or projections and / or depths on its flat side. A roller shutter box (100) according to one of claims 1 to 5, characterized in that the mutually opposite sides (6) of the coupling elements are essentially flat and are oriented parallel to each other and essentially orthogonal with respect to the core of bonding (2). 7. Roller shutter box (100) according to one of claims 1 to 6, characterized in that it consists totally or partially of a stable form, suitable for the transmission of the forces, of one or more materials, chosen from the group comprising steel , synthetic material, GFK, aluminum, wood, composite wood materials, stabilized cardboard or cardboard, mineral fibers and PVC grid fabrics. 8. Roller shutter box (100) according to one of claims 1 to 7, characterized in that between the vertical linking core or the leg and an upper or lower horizontal leg, by means of a cross-linking node in the corner region An angularly rigid joint is generated between the vertical leg and the horizontal leg. 9. Roller shutter box (100) according to one of claims 1 to 8, characterized in that it consists of several parts that can be joined between with a continuity between the contact surfaces and a continuous transmission of the forces. 10. Roller shutter box (100) according to one of claims 1 to 10, characterized in that the fixing bracket (1) is integrated in the roller shutter box (100) in such a way that the binding core does not protrude from the inside area of the roller shutter box. 11. Roller shutter box (100) according to one of claims 1 to 10, characterized in that the fixing bracket (1) is integrated in the roller shutter box (100) such that the coupling element on the side of The walls are joined together with the upper side of the roller shutter box. 12. Roller blind box (100) according to one of claims 1 to 11, characterized in that the roller blind box and the fixing bracket are configured in two parts, due to the fact that the roller blind box has a cover Removable lower closure and the lower leg of the fixing bracket is firmly attached to the removable lower closure cover of the roller shutter box or can be attached to it in an identical manner and to the soul in vertical joint, so as to ensure continuity in the transmission of forces.