WO2023119053A1

WO2023119053A1 - Assembly of a screen device and fastening means for fastening a screen casing of this screen device

Info

Publication number: WO2023119053A1
Application number: PCT/IB2022/062060
Authority: WO
Inventors: Michiel Maurice DESPLENTER; Christophe Médard Elza DE MITS
Original assignee: Renson Sunprotection Screens NV
Current assignee: Renson Sunprotection Screens NV
Priority date: 2021-12-22
Filing date: 2022-12-12
Publication date: 2023-06-29
Anticipated expiration: 2024-06-22
Also published as: EP4453347A1; BE1030065B1; EP4453347B1; BE1030065A1; EP4453347C0

Abstract

The present invention relates to an assembly of - a screen device (1), comprising • a screen (3) which is able to be rolled up onto and unrolled from a screen roller (2) in order to cover a window or a door (5); and • a screen casing (4, 4', 4'') in which this screen roller (2) is accommodated so as to be able to rotate; and - fastening means for fastening the screen casing (4, 4', 4'') to the window or door (5) or a structure (7) in which said window or door (5) is mounted, comprising: • a first fastening bracket (8) for fastening to the screen casing (4, 4', 4''); • a second fastening bracket (9, 9', 9'') for fastening to the window or door (5) or the structure (7), which is fastenable to the first fastening bracket (8); and • adjustment means for adjusting the mutual fastening of these fastening brackets (8, 9, 9', 9'') in a height direction (H).

Description

ASSEMBLY OF A SCREEN DEVICE AND FASTENING MEANS FOR FASTENING A SCREEN CASING OF THIS SCREEN DEVICE

The present invention relates to an assembly of

- a screen device, comprising

• a screen which is able to be rolled up onto and unrolled from a screen roller in order to cover a window or a door; and

• a screen casing in which this screen roller is accommodated so as to be able to rotate;

- fastening means for fastening the screen casing to the window or door or a structure in which said window or door is mounted, comprising:

• a first fastening bracket which is provided for fastening to the screen casing; and

• a second fastening bracket which is provided for fastening to the window or door or the structure, and which is fastenable to the first fastening bracket.

The aforementioned structure is an underlying, supporting structural part of a building in which said window or said door is accommodated, said structural part ensuring the strength and rigidity of this building. This may be, for example, a loadbearing wall or a frame, etc.

Such a window or such a door may be a separate window or a separate door, but may also be configured as a set of windows. Such a window or such a door is understood to refer to both the window or door profiles and the filling of these window or door profiles in the form of glazing and/or panels, etc.

In the case of screen devices which serve to cover windows or doors of a reduced width and in which the screen casing thus also has a reduced length, there are few or no problems. However, when these dimensions increase to above 3 metres, and especially when the length of the screen casing is above 3.6 metres, such a screen casing has to be secured in a satisfactory manner with respect to the structure in order to limit bending thereof, with associated problems. Models of such screen casings are known which should be fastened at various positions at the top of such a window or door depending on circumstances.

A plurality of different fastening means is provided in practice for fastening such screen casings. Because different types of fastening means are required, in practice the screen casings are not always mounted with the most suitable fastening means, wherein the required security cannot always be guaranteed.

Often, such a screen casing is fastened to profiles of such a window or door, typically by means of screws distributed over the length. Where this is not possible, or where energy considerations do not allow, such a screen casing must be fastened in a zone next to and above such a window or door, leaving an opening above said window. In some cases, the structure can be accessed directly for fastening the screen casing Then the screen casing may for example itself be fastened to said structure with several screws, wherein also fastening brackets may be used. In said cases, these are not always positioned judiciously.

In order to avoid piercing the screen casing with such screws, with the risk of damaging the screen, it is also known to secure such a screen casing by means of a profile which is provided for that purpose, which is firstly provided over the length of the screen casing, for example by way of hooking engagement in a cavity provided therefor in the screen casing, and secondly fastenable to the structure using a plurality of screws. This profile affords the advantage that screw holes can be provided at predefined locations therein, such that a sufficient number of screws are provided in a satisfactorily distributed manner over the length of the screen casing in order to be able to ensure a satisfactory securing action. The screen casing can also be installed and removed in a simple manner without a loss of rigidity. For this however, the screen casing must be designed for fastening of the profile. Also, this profile cannot be used in all circumstances.

There are also situations in which the screen casing cannot be fastened to profiles of the screen or door, and also the structure is not directly accessible. This is typically the case where a cavity above profiles of the window or door has been sealed with non-structural insulating material, for example when mounting a screen casing in an alcove. Various solutions have already been devised for such situations, so as to nevertheless be able to secure such a screen casing adequately with respect to the structure in order to avoid bending thereof. In practice, however, these solutions are little used, as a result of which insufficient or even no securing action is provided, with the consequence of associated problems.

In EP 3 241 957 Al, the screen casing is fastened using a first fastening bracket which can be fastened to the screen casing, and a second fastening bracket which can be fastened to a window or door or surrounding structure, wherein said fastening brackets can be fastened together. These fastening brackets only allow limited flexibility for fastening the screen casing to the structure.

The object of this invention is to provide fastening means with which different types of such screen casings can be fastened easily and securely under various circumstances.

This object of the invention is achieved by providing an assembly of

- a screen device, comprising

• a first fastening bracket which is provided for fastening to the screen casing;

• a second fastening bracket which is provided for fastening to the window or door or the structure, and which is fastenable to the first fastening bracket; and

• adjustment means for adjusting the mutual fastening of these fastening brackets in a height direction, wherein the screen casing comes from a set of several screen casings, wherein a first screen casing of this set is provided with bracket hook-on means, and a second screen casing of this set is free from such bracket hook-on means, and wherein the first fastening bracket: - in a first position, is fastenable to the second fastening bracket and is provided with casing hook-on means in order, in the first position, to hook onto the bracket hook-on means on the first screen casing; and

- in a second position, different from the first position, is fastenable to the second fastening bracket, and is provided with a hook element in order, in this second position, to hook at the top of the second screen casing.

Thanks to this height adjustment, it is possible to use the same fastening means for different types of screen casing and in very different circumstances, in order to fasten a screen casing of such a screen device to a window or door or a structure. With this height adjustment, it is now possible to adjust the height of the screen casing relative to the upper edge of the window or door to be covered.

The first fastening brackets may in some cases be premounted on the screw casing in a workshop, wherein the second bracket may be fastened at the desired position on site, and wherein the two fastening brackets may then be fastened at the desired height relative to one another.

With such a height adjustment, it is also easy to eliminate any play on site.

The bracket hook-on means may directly form a part of the screen casing. Alternatively, the fastening means may for example comprise a fastening profile, the first hook-on elements forming part of said fastening profile, which is fastenable to the screen casing in order to provide the screen casing with said hook-on elements. Suitable such bracket hook-on means are in practice known for example under the name Euro groove or 14/18 groove.

By providing the first fastening bracket with casing hook-on means firstly and a said hook element secondly, in order to be able to attach these more easily to different types of screen casing, the same fastenings may be used even more widely for mounting screen casings.

The hook element is preferably arranged on a first side of the first fastening bracket, while the casing hook-on means are arranged on the opposite side of said first fastening bracket. The first fastening bracket may be oriented with the first side towards the screen casing in the first position, and with the opposite side towards the screen casing in the second position. In the first position, the casing hook-on means are then pointing towards this screen casing, and the hook element is pointing away from the screen casing, and in the second position the hook element is pointing towards the screen casing and the casing hook-on means are pointing away from the screen casing. The first fastening bracket may for this be rotated through 180° around a vertical axis in the second position relative to the first position.

In a specific embodiment, in the second position, the first fastening bracket is rotated through 90° around a horizontal axis relative to the first position.

In the second position, at a first distance below the hook element, the first fastening bracket is provided with first screw holes for engagement therein of first screws for fastening the first fastening bracket to the second screen casing.

These first screw holes are then preferably arranged such that when the hook element engages at the top of the screen casing and these first screws are inserted through said first screw holes for fastening the first fastening bracket to the screen casing, said first screws will certainly not damage the screen.

The adjustment means may more specifically comprise a first elongate slot (hole) which is provided in one of said fastening brackets and in mounted state extends in the height direction, and a corresponding fastening element which engages in said first elongate slot in order to fasten the other of the two fastening brackets relative to said first elongate slot.

Said first elongate slot is then preferably provided in the second fastening bracket.

Even more preferably, the second fastening bracket then comprises a second elongate slot (hole) which in mounted state extends in the height direction and which is arranged at a second distance from the first elongate slot viewed in this height direction.

By providing two such slots which are arranged at a second distance from one another, the height adjustment may bridge a greater height without unnecessarily weakening such a fastening bracket. Each elongate slot may thus be made more rigid. In addition, it is possible, in such a fastening bracket in which the elongate slot situated furthest from the window or door structure in mounted state is not used, to shorten said fastening bracket by removing the part of the fastening bracket containing the elongate slot (the top slot). The remaining bottom slot remains intact. Most preferably, for this the second fastening bracket is provided with one or more indications between the first elongate slot and the second elongate slot, preferably in the form of cuts, to simplify removal of this part by for example folding or sawing the second fastening bracket. With an indication, it can more easily be ensured that, for example when grinding away the top slot, the bottom slot remains intact. A cut can further simplify the removal of said part of the fastening bracket. For this for example, more specifically, cuts may be provided on the lateral sides of said second fastening bracket.

For stability, said second fastening bracket preferably comprises two said first elongate slots arranged at a third distance from one another in a direction running transversely to the height direction.

If here the corresponding first fastening bracket, as described above, is provided with both casing hook-on means and a hook element, then said first fastening bracket is further preferably provided with four second screw holes, so that in the first position, two of these second screw holes correspond to two of the elongate slots for fastening of two second screws through said second screw holes and said elongate slots, and in the second position two of the second screw holes correspond to two of said elongate slots for fastening of two second screws through said second screw holes and said elongate slots.

The hole pattern of the four second screw holes is preferably symmetrical in order to retain the same functionalities with respect to height adjustment in both the first position and the second position.

If the first fastening bracket is here rotated through 90° about a horizontal axis in the second position relative to the first position, then these four second screw holes are preferably arranged at the corners of a theoretical square with sides which are equal to the third distance.

The second fastening bracket may more specifically comprise a first fastening leg which extends substantially in a first plane and which is provided for fastening to the window or door or the structure, and a second fastening leg which extends substantially in a second plane and is provided with said elongate slot or slots, wherein the first plane differs from the second plane.

Such a second fastening bracket may for example easily be folded out of a metal plate, for example aluminium.

Because the first plane differs from the second plane, it can be ensured that forces can be absorbed by means of the fastening means, whereby bending is avoided.

In a first, more specific embodiment, the second plane in this case extends substantially perpendicularly with respect to the first plane.

In a second, more specific embodiment, the second plane in this case extends substantially parallel to the first plane.

The first fastening bracket is preferably cast, for example from stainless steel or Zamac.

One of said fastening brackets is preferably provided with positioning edges on its lateral sides, for engagement on the lateral sides of the other of the two fastening brackets. These positioning edges increase the shear forces between the two fastening brackets so as to be able to support the screen casing when the window or door is installed in a building. More specifically, the positioning edges may be provided with relief in order, on engagement on the lateral sides of the other of the two fastening brackets, to further increase these forces and thus prevent the shifting of the fastening brackets relative to one another.

The present invention will now be explained in more detail by means of the following detailed description of some preferred embodiments of assemblies according to the present invention. The sole aim of this description is to give illustrative examples and to indicate further advantages and features of the present invention, and it cannot therefore be interpreted as a limitation of the area of application of the invention or of the patent rights defined in the claims.

Reference numerals are used in this detailed description to refer to the attached drawings, in which: Figure 1 shows a first fastening bracket and a second fastening bracket of a first embodiment of an assembly according to this invention, viewed from the front in perspective, wherein said fastening brackets are fastened to one another in a first position;

Figure 2 shows the first fastening bracket and the second fastening bracket from figure 1, viewed from the rear in perspective, wherein said fastening brackets are fastened to one another in the first position;

Figure 3 shows the first fastening bracket and the second fastening bracket from figure 1, viewed from the front in perspective, wherein said fastening brackets are fastened to one another in a second position;

Figure 4 shows the first fastening bracket and the second fastening bracket from figure 1, viewed from the front in perspective, wherein said fastening brackets are fastened to one another in the second position;

Figure 5 shows the second fastening bracket from figure 1 separately, viewed from the front in perspective;

Figure 6 shows the first fastening bracket from figure 1 separately, viewed from the front in perspective, in the first position;

Figure 7 shows the first fastening bracket from figure 1 separately, viewed from the front in perspective, in the second position;

Figure 8 shows the first fastening bracket from figure 1 separately, viewed from below, in the second position;

Figure 9 shows the first fastening bracket from figure 1 separately, viewed from the front, in the second position;

Figure 10 shows the first fastening bracket from figure 1 separately, viewed from the side, in the second position;

Figure 11 shows a part of a first assembly according to this invention, viewed from the front in perspective, in mounted state with a first screen casing, with the first fastening bracket in the first position and with the second fastening bracket mounted on a window profile which is arranged completely in front of and below the screen casing;

Figure 12 shows a part of the first assembly from figure 11, viewed from the front in perspective, in mounted state with a second screen casing, with the first fastening bracket in the second position and with the second fastening bracket mounted on a window profile which is arranged completely in front of and below the screen casing;

- Figure 13 shows a part of the first assembly from figure 11 in cross-section, in mounted state with the first screen casing, with the first fastening bracket in the first position and with the second fastening bracket mounted on a window profile which is arranged completely in front of and below the screen casing;

- Figure 14 shows a part of the first assembly from figure 11 in cross-section, in mounted state with the second screen casing, with the first fastening bracket in the second position and with the second fastening bracket mounted on a window profile which is arranged completely in front of and below the screen casing;

- Figure 15 shows a part of the first assembly from figure 11 in cross-section, in mounted state with an alternative first screen casing and a fastening profile, with the first fastening bracket in the first position and with the second fastening bracket mounted on a window profile which is arranged completely in front of and below the screen casing;

- Figure 16 shows a part of the first assembly from figure 11 in cross-section, in mounted state with the first screen casing, with the first fastening bracket in the first position and with the second fastening bracket mounted on a window profile which is arranged completely horizontally in front of the screen casing;

- Figure 17 shows a part of the first assembly from figure 11 in cross-section, in mounted state with the second screen casing, with the first fastening bracket in the second position and with the second fastening bracket mounted on a window profile which is arranged completely in front of the screen casing, partially horizontally in front of this screen casing and partially below this screen casing;

- Figure 18 shows a first alternative embodiment of a second fastening bracket for an assembly according to this invention, in perspective;

- Figure 19 shows a second alternative embodiment of a second fastening bracket for an assembly according to this invention, in perspective;

- Figure 20 shows a first alternative embodiment of an assembly according to this invention in cross-section, in mounted state with the second screen casing which is arranged almost completely above and behind a window profile, with the first fastening bracket in the second position and with the first alternative second fastening bracket from figure 18 mounted on an adjacent structure;

- Figure 21 shows a second alternative embodiment of an assembly according to this invention in cross-section, in mounted state with the first screen casing which is arranged partially above and behind a window profile, with the first fastening bracket in the first position and with the second alternative second fastening bracket from figure 19 mounted on an adjacent structure;

- Figure 22 shows the second alternative embodiment from figure 21, viewed from behind in perspective, in mounted state with the second screen casing which is arranged completely horizontally behind a window profile, with the first fastening bracket in the second position and with the second alternative second fastening bracket from figure 19 mounted on an adjacent structure;

- Figure 23 shows the first alternative embodiment from figure 20, viewed from the front in perspective, in mounted state with the first screen casing which is arranged almost completely above and behind a window profile, with the first fastening bracket in the first position and with the first alternative second fastening bracket from figure 18 mounted on an adjacent structure.

The illustrated assemblies according to this invention comprise a structure (7) in which a window (5) is mounted. This structure (7) may be a wall which is constructed in a known fashion and may be covered with a cladding. Instead of such a wall, for example, a structural frame may also be provided as an underlying structure.

The window (5) is constructed in each case from glazing (not shown) contained in a framework which is constructed from window profiles (6). Instead of such a window (5), a door may also be provided. This may be a separate window or a separate door, but may also be configured as a set of windows.

A respective screen device (1) is installed in front of the window (5) and comprises a screen casing (4, 4’, 4”), with a screen roller (2) which is arranged therein so as to be able to rotate and on which a screen (3) is provided so as to be able to be rolled up and unrolled in order to expose or indeed cover the window (5). Lateral guides may be arranged on both lateral sides of the screen (3) below the screen casing (4, 4’, 4”), for the purpose of guiding the lateral sides of the screen (3) and/or a bottom slat (29) fastened at the bottom of the screen (3). The sake of clarity of the figures, these components are not always shown in each figure.

The screen casing (4, 4’, 4”) according to the invention may be fastened either to the structure (7) or to a window profile (6) of the window (5) by means of a first fastening bracket (8) and a second fastening bracket (9, 9’, 9”) in each case. In this case, a plurality of such fastening brackets (8, 9, 9’, 9”) is fastened in a similar fashion firstly to the screen casing (7) so as to be distributed over the length of the screen casing (7), and secondly to the structure (7) or window profile (6).

The first fastening bracket (8) is in each case fastened to the screen casing (4, 4’, 4”), while the second fastening bracket (9, 9’, 9”) is fastened to the structure (7) or to the window profile (6). The two fastening brackets (8, 9, 9’, 9”) are fastened to one another and this fastening is adjustable in the height direction (H).

In the figures, different types of screen casing (4, 4’, 4”) are illustrated.

A first screen casing (4) may be seen in figures 11, 13, 16, 21 and 23, and is provided with bracket hook-on means (26, 27) for hooking on the first fastening bracket (8). These bracket hook-on means (27, 27) in the embodiment illustrated consist of a slot (26) which extends over the length of the screen casing (4), and flanges (27) which delimit said slot (26) on either side at a distance (di) from one another.

An alternative embodiment of this first screen casing (4”) is illustrated in figure 15. This alternative embodiment is also provided with such bracket hook-on means which are now to be fastened to the screen casing (4”) by an additional fastening profile (30) which is provided with bracket hook-on means. For this, the screen casing (4”) itself is provided with the same slot delimited by flanges as in the first screen casing, wherein now the fastening profile (30) is securely hooked with a hook-like hook-in element (31). The fastening profile (30) is in turn again provided with an alternative slot, delimited by flanges as said bracket hook-on means, which have a comparable functionality to the bracket hook-on means of the first screen casing (4). The bracket hook-on means of this fastening profile (30) are in practice known under the name Euro groove or 14/18 groove. The fastening profile (30) has a height which corresponds approximately to the height of the screen casing (4”) and brings the bracket hook-on means to a safe distance in front of the screen casing (4”), wherein the free opening between the screen casing (4”) and the window (5) is sealed by means of said fastening profile (30).

A second screen casing (4’) can be seen in figures 12, 14, 17, 20 and 22. The second screen casing (4’) is free from such bracket hook-on means (26, 27).

In order to fasten the first fastening bracket (8) to an embodiment of the first screen casing (4, 4”) using bracket hook-on means (26, 27), this is provided with casing hook-on means (11).

Said casing hook-on means (11) in the embodiment illustrated have a dimension (d2) in a first direction which is greater than the distance (di) between the flanges (27), wherein these are provided on either side with hook ribs (12) which delimit an underlying hook-in slot (13) for hooking these hook ribs (12) into the slot (26) of the screen casing (4, 4”) behind the flanges (27). These hook ribs (12) are here provided such that they can engage in clamping fashion behind these flanges (27). In the embodiment illustrated, the casing hook-on means (11) may for this be hooked via a rotational movement behind the flanges (17) and clamped there. For this, said casing hook-on means (11) have a dimension (ds) in a second direction which is smaller than the distance (di) between the flanges (27). In this second direction, the casing hook-on means (11) can be arranged freely between the flanges (27) and, after positioning between the flanges (27), the first fastening bracket (8) may then be turned to allow the casing hook-on means (11) to hook behind the flanges (27).

Alternative ways of hooking the casing hook-on means to the bracket hook-on means are known.

In order to fasten the first fastening bracket (8) to an embodiment of the second screen casing (4’) without such bracket hook-on means (26, 27), said first fastening bracket (8) is provided with a hook element (10) in order to hook onto the top of the second screen casing (4’). First screw holes (15) are provided at a distance (ti) below this hook element (10) so that first screws (25) may be arranged therein for screwing said first fastening bracket (8) to the second screen casing (4’). The distance (ti) is here selected such that these first screws (25) cannot damage the screen (3) in this screen casing (4’). The casing hook-on means (11) are arranged on a first side of the first fastening bracket (8), while the hook element (10) is arranged on the opposite side of said first fastening bracket (8).

In a first position in which the casing hook-on means (11) are arranged at the top of the first fastening bracket (8), said first fastening bracket (8) may then be fastened to an embodiment of the first screen casing (4, 4”).

In a second position in which the first fastening bracket (8) is rotated through 180° about a vertical axis and 90° about a horizontal axis, the hook element (10) at the top of the first fastening bracket (8) is arranged towards the screen casing (4’) and said hook element (10) may be hooked at the top of an embodiment of the second screen casing (4’).

In order to fasten the second fastening bracket (9, 9’, 9”) to a window profile (6) or the structure (7), the latter is/are provided with a first fastening leg (21) having several screw holes (23). Third screws (28) are arranged in the known manner through these screw holes (23) in order to fix the second fastening bracket (9, 9’, 9”) relative to the window profile (6) or structure (7).

In order to fasten the two fastening brackets (8, 9, 9’, 9”) to one another, the second fastening bracket (9, 9’, 9”) in each case comprises a second fastening leg (21) in which a plurality of elongate slots (18, 19) is provided and which in mounted state extends in the height direction (H). The first fastening bracket (8) is provided with corresponding second screw holes (14). By arranging second screws (20) through the elongate slots (18, 19) and allowing these to engage in such screw holes (14), the two fastening brackets (8, 9, 9’, 9”) can be fastened to one another, wherein the mutual fastening may be adjusted in the height direction (H). Thus also, the corresponding height of the screen casing (4, 4’, 4”) relative to the window (5) or door to be covered can be adjusted.

In the embodiments illustrated, the second fastening bracket (9) is in each case formed by punching and folding from a metal plate which may be made for example from aluminium.

The first fastening leg (21) in each case extends in a first plane and the second fastening leg (22) extends in a second plane, wherein the first plane differs from the second plane. In the first illustrated embodiment of the second fastening bracket (9), the first fastening leg (21) forms a wider foot, from which the second fastening leg (22) extends. The first and second planes stand at right angles to one another.

The second illustrated embodiment of the second fastening bracket (9’) is substantially L-shaped, wherein the first plane and second plane also stand at right angles to one another.

In the third illustrated embodiment, the second fastening bracket (9”) is provided with an intermediate piece (32) so that the first plane and second plane extend substantially parallel to one another.

Said elongate slots (18, 19) are in each case arranged in pairs, wherein the pairs are arranged at a third distance (ts) from one another in a direction running transversely to the height direction (H).

The first fastening bracket (8) is provided with four said second screw holes (14) which are arranged symmetrically in order to retain a same functionality with respect to height adjustment in both the first position and in the second position. In the embodiment illustrated, the second screw holes (14) are arranged at the comers of a theoretical square with sides having a length equal to the third distance (ts ).

In the second and third illustrated embodiments, the second fastening bracket (9, 9”) is provided with one pair of such elongate slots (18). In the first illustrated embodiment, the second fastening bracket (9) is provided with two pairs of such elongate slots (18, 19), wherein a top pair of fastening slots (19) is arranged at a second distance (t2) from the bottom pair (18) of said elongate slots (18, 19) in the height direction (H). In this way, greater height differences may be absorbed, wherein the rigidity of the slots (18, 19) remains ensured. Thus the top slots (19) may be used for fastening the screen casing (4, 4’, 4”) is illustrated in figures 13-15, or the bottom slots (18) as illustrated in figures 16 and 17. Where the bottom slots (18) are used, the top part of the second fastening bracket (9) with the top slots (19) may be removed at said second distance (t2), wherein the bottom slots (18) remain intact. To simplify removal of this top part, in the embodiment illustrated, a cut (24) is provided on both lateral sides of this second fastening bracket (9). In order to be able to support the screen casing (4, 4’, 4”) in the mounted state of the window (5) or door in the structure (7), in both the first position and in the second position, the first fastening bracket (8) is provided with positioning edges (16) on both its lateral sides, which delimit a mounting cavity (17). The second fastening bracket (9, 9’, 9”) is received in this mounting cavity (17) in such a way that the positioning edges (16) engage on its lateral sides in order thus to increase the shear forces between the two fastening brackets (8, 9, 9’, 9"). These positioning edges may in some cases be provided with relief to further increase said shear forces.

Claims

1. Assembly of:

- a screen device (1), comprising

• a screen (3) which is able to be rolled up onto and unrolled from a screen roller (2) in order to cover a window or a door (5); and

• a screen casing (4, 4’, 4”) in which this screen roller (2) is accommodated so as to be able to rotate; and

- fastening means for fastening the screen casing (4, 4’, 4”) to the window or door (5) or a structure (7) in which said window or door (5) is mounted, comprising:

• a first fastening bracket (8) which is provided for fastening to the screen casing (4, 4’, 4”); and

• a second fastening bracket (9, 9’, 9”) which is provided for fastening to the window or door (5) or the structure (7) and which is fastenable to the first fastening bracket (8); characterized in that the fastening means comprise adjustment means for adjusting the mutual fastening of these fastening brackets (8, 9, 9’, 9”) in a height direction (H), that the screen casing (4, 4’, 4”) comes from a set of several screen casings (4, 4’, 4”), wherein a first screen casing (4, 4”) of this set is provided with bracket hook- on means (26, 27), and a second screen casing (4’) of this set is free from such bracket hook-on means (26, 27), and that the first fastening bracket (8):

- in a first position, is fastenable to the second fastening bracket (9, 9’, 9”) and is provided with casing hook-on means (11) in order, in the first position, to hook onto the bracket hook-on means (26, 27) on the first screen casing (4, 4”); and

- in a second position, is fastenable to the second fastening bracket (9, 9’, 9”) and is provided with a hook element (10) in order, in this second position, to hook at the top of the second screen casing (4’).

2. Assembly according to Claim 1, characterized in that the first fastening bracket (8), in the second position, at a first distance (ti) below the hook element (10), is provided with first screw holes (15) for engagement therein of first screws (25) for fastening the first fastening bracket (8) to the second screen casing (4’).

3. Assembly according to any of the preceding claims, characterized in that the adjustment means comprise a first elongate slot (18) which is provided in one of said fastening brackets (8, 9, 9’, 9”) and in mounted state extends in the height direction (H), and a corresponding fastening element (20) which engages in said first elongate slot (18) in order to fasten the other of the two fastening brackets (9, 9’, 9”, 8) relative to said first elongate slot (18).

4. Assembly according to Claim 3, characterized in that said first elongate slot (18) is provided in the second fastening bracket (9, 9’, 9”).

5. Assembly according to Claim 4, characterized in that the second fastening bracket (9, 9’, 9”) comprises a second elongate slot (19) which in mounted state extends in the height direction (H) and which is arranged at a second distance (t2) from the first elongate slot (18) viewed in this height direction (H).

6. Assembly according to Claim 5, characterized in that the second fastening bracket (9, 9’, 9”) is provided with one or more cuts (24) between the first elongate slot (18) and the second elongate slot (19).

7. Assembly according to any of Claims 4 to 6, characterized in that the second fastening bracket (9, 9’, 9”) comprises two first elongate slots (18) which are arranged at a third distance ( ) from one another in a direction running transversely to the height direction (H).

8. Assembly according to Claim 1 or 2 and Claim 7, characterized in that the first fastening bracket (8) is provided with four second screw holes (14) so that in the first position, two of these second screw holes (14) correspond to two of the elongate slots (18, 19) for fastening of two second screws (20) through said second screw holes (18) and said elongate slots (18, 19), and in the second position, two of these second screw holes (14) correspond to two of said elongate slots (18, 19) for fastening of two second screws (20) through said second screw holes (14) and said elongate slots (18, 19). 18

9. Assembly according to any of Claims 4 to 8, characterized in that the second fastening bracket (9, 9’, 9") comprises a first fastening leg (21) which extends substantially in a first plane and which is provided for fastening to the window or door (5) or the structure (7), and a second fastening leg (22) which extends substantially in a second plane and is provided with said elongate slot (18) or slots (18, 19), wherein the first plane differs from the second plane.

10. Assembly according to any of the preceding claims, characterized in that one of said fastening brackets (8, 9, 9’, 9") is provided with positioning edges (16) on its lateral sides for engagement on the lateral sides of the other of the two fastening brackets (9, 9’, 9”, 8).

11. Assembly according to Claim 10, characterized in that the positioning edges (16) are provided with relief in order, on engagement on the lateral sides of the other of the two fastening brackets (9, 9’, 9”, 8) to prevent the shifting of the fastening brackets (8, 9, 9’, 9”) relative to one another.