FASTENING DEVICE FOR FITTING WALL ELEMENTS AT A WALL ANGLE

Description

The present disclosure relates to a fastening device for fitting wall elements at a wall angle different from a multiple of 180° in order to construct walls at the wall angle with respect to each other.

Such fastening devices are typically used to divide relatively large spaces into smaller spaces, with, for example, meeting rooms being separated from office spaces. In this case, the relatively large spaces are split using one or more wall elements, such as glass panels and/or wooden panels, etc. These fastening devices are not limited to fitting walls in indoor spaces, but are also used to construct external walls. It is desirable for such wall elements to be constructed quickly and in a flexible manner and, if desired, to be able to dismantle them, for example in case of alteration works.

Such a fastening device is described in WO 2022/167920 A1 and illustrated in FIGS. 8 and 18 of this patent publication.

The fastening device for fitting the wall elements at a wall angle from WO 2022/167920 A1 has much larger dimensions, in relative terms, than the fastening device for fitting the wall elements in line with one another from this patent publication. The fastening device from

WO 2022/167920 A1 for fitting wall elements at a wall angle which do not extend in line with one another (and in which the wall angle therefore differs from a multiple of 180°) is thus deemed to be less aesthetically pleasing than the fastening device for fitting the wall elements in line with one another from this patent publication.

In WO 2011/010916 A1, a fastening device is described and illustrated in which wall elements are fitted at a wall angle between an angle support profile and an angle closing profile which are attached to each other by means of dovetail connecting elements. These connecting elements have to be attached from the top side or the bottom side of the profiles. Attaching said dovetail-shaped connecting elements from the top side or the bottom side of profiles is relatively laborious. If such wall elements are to be fitted in indoor spaces, across the entire height between a floor and a ceiling, then it is also desirable for these profiles to also extend across this height for aesthetic reasons. In such cases, the top side or bottom side of these profiles is not accessible.

A fastening device having the characterizing features from the introductory part of the first claim is described in WO 2017/214382 A1 and illustrated in FIGS. 29-32.

In this case, column elements on either side of the wall elements have to be coupled to each other by means of locking elements which have to be fitted through openings in one of the profiles and have to be turned in order to be locked. Such openings are deemed not to be aesthetically pleasing.

It is the object of the present disclosure to provide a fastening device for fitting wall elements at a wall angle, for constructing walls at the wall angle with respect to each other, the dimensions of which can be greatly reduced with respect to the fastening device from WO 2022/167920 A1 and which can be installed more easily than the fastening devices from WO 2011/010916 A1 and which is more aesthetically pleasing than the fastening devices from WO2017/214382 A1.

The object of the present disclosure is achieved by means of a fastening device according to the introductory part of the first claim which is further characterized in that this fastening device comprises:

• • a first transverse support profile;
  • first frame attachment means for attaching the first transverse support profile to the angle support profile in order to form a first support frame together with the angle support profile;
  • a first transverse closing profile;
  • first transverse attachment means for attaching the first transverse closing profile to the first transverse support profile in order to form a first closing frame together with the angle closing profile, so as to mount the first wall element between the first support frame and the first closing frame;
  • a second transverse support profile;
  • second frame attachment means for attaching the second transverse support profile to the angle support profile in order to form a second support frame together with the angle support profile;
  • a second transverse closing profile;
  • second transverse attachment means for attaching the second transverse closing profile to the second transverse support profile in order to form a second closing frame together with the angle closing profile, so as to mount the second wall element between the second support frame and the second closing frame;
    wherein the transverse closing profiles are provided in order to secure the angle closing profile between these transverse closing profiles.

The support profile coupling means and the closing profile coupling means may form an integral part of the angle support profile and the angle closing profile, respectively. Alternatively, the support profile coupling means and/or the closing profile coupling means may comprise coupling means which are optionally releasably attachable to the angle support profile and the angle closing profile, respectively.

The frame attachment means and the transverse attachment means may comprise attachment means which form an integral part of the respective transverse support profile and/or the respective angle support profile or may be provided thereon so as to be releasably attachable.

The angle support profile of a fastening device according to the present disclosure may be fitted in a known manner, following which the wall elements may be fitted to this angle support profile. In contrast to the fastening device from WO 2022/167920 A1, it is now not necessary to attach two separate closing profiles to the angle support profile, but it suffices to attach a single angle closing profile thereto in order to be able to attach the two wall elements to the angle support profile. Likewise, it is no longer necessary to provide separate coupling means for each wall element to this end, for coupling the respective closing profile to the angle support profile. The angle closing profile and the angle support profile are couplable to each other by means of the same support profile coupling means and closing profile coupling means for fastening both wall elements between the angle closing profile and the support profile coupling means. This saves space which would otherwise be required to provide separate coupling means and separate closing profiles, as a result of which the dimensions of the unit can be greatly reduced. This is partly made possible by the fact that the support profile coupling means and the closing profile coupling means are provided between said holding surfaces and said closing surfaces and are couplable to each other along said coupling direction.

The fact that the transverse closing profiles secure the angle closing profile also prevents the coupling between the support profile coupling means and the closing profile coupling means from being uncoupled. As a result thereof, it is no longer necessary to fit locking elements through openings which are deemed not to be aesthetically pleasing.

The first holding surface and the first closing surface extend parallel to one another and also extend parallel to the plane in which the first wall element extends at the location of this first holding surface and this first closing surface. The second holding surface and the second closing surface also extend parallel to one another and also extend parallel to the plane in which the second wall element extends at the location of this second holding surface and this second closing surface. The surfaces of the wall elements under which these wall elements extend at the location of the corresponding holding surfaces and closing surfaces, and under which these wall elements preferably extend virtually entirely, determine the said wall angle.

The first coupling angle is preferably equal to the second coupling angle.

In one specific embodiment, the wall angle is 90° and the coupling angles are each 45°.

In first specific embodiments, the angle support profile is provided in order to form an external corner with walls which have been constructed by means of this fastening device, whereas the angle closing profile is provided to form an internal corner. According to the disclosure, such embodiments are easier to produce and provide with the required supporting function. In alternative specific embodiments, the angle support profile is provided to form an internal corner, whereas the angle closing profile is provided to form an external corner, analogous with the fastening device as illustrated in FIGS. 8 and 18 from WO 2022/167920 A1.

Each transverse support profile is first attached to the angle support profile by means of the frame attachment means. Depending on the preconditions and optionally, as desired, the angle closing profile may in this case already have been attached to the angle support profile by means of the angle attachment means. Typically, however, the transverse support profile will already have been attached to the angle support profile before the wall elements are fitted to both and the angle closing profile will only be attached to the angle support profile thereafter. Only after both each transverse support profile and the angle closing profile have been attached to the angle support profile, the transverse closing profiles will be attached. In this case, these are attached to the transverse support profile by means of the respective transverse attachment means. To this end, these may also be attached to the angle support profile by means of the transverse attachment means. In this case, the angle closing profile is secured between these transverse closing profiles.

In order to form a said first support frame, an additional said first transverse support profile may furthermore be provided on the side of the first wall element opposite the side where the first-mentioned transverse support profile is provided, wherein additional respective frame attachment means are then provided. Furthermore, on the side of the wall element opposite the side where the angle support profile is provided, a further angle support profile may be provided or, alternatively, a support profile, such as for example described and illustrated in WO 2022/167920 A1 for fitting wall elements which extend in line with one another. Analogously, it is furthermore possible:

• • in order to form a said first closing frame, to provide an additional said first transverse closing profile and an additional angle closing profile or closing profile, such as for example described and illustrated in WO 2022/167920 A1 for fitting wall elements which extend in line with one another;
  • in order to form a said second support frame, to provide an additional said second transverse support profile and an additional angle support profile or support profile, such as for example described and illustrated in WO 2022/167920 A1 for fitting wall elements which extend in line with one another;
  • in order to form a said second closing frame, to provide an additional said second transverse closing profile and an additional angle closing profile or closing profile, such as for example described and illustrated in WO 2022/167920 A1 for fitting wall elements which extend in line with one another;
    all this in each case by means of respective attachment means, such as angle attachment means, frame attachment means, transverse attachment means, and/or any other attachment means, such as for example described and illustrated in WO 2022/167920 A1.

The angle attachment means of a fastening device according to the present disclosure preferably comprise a core element which is provided to extend between the wall elements.

In this case, this core element may then form part of the closing profile coupling means or the support profile coupling means or partly of the closing profile coupling means and partly of the support profile coupling means. Preferably, this core element forms part of the closing profile coupling means, so that this core element will not inhibit the fitting of the wall elements to the holding surfaces.

Such a core element may, more specifically, be provided with click-fit elements for attaching the core element to the angle support profile or for attaching the core element to the angle closing profile. Alternatively, a core element may be provided with both click-fit elements for attaching the core element to the angle support profile and click-fit elements for attaching the core element to the angle closing profile.

In this case, such click-fit elements may form part of the closing profile coupling means or form part of the support profile coupling means.

In this case, these click-fit elements preferably extend on either side of the core element and may, in this case, more specifically be click-fittable in a corresponding fitting cavity in the angle support profile or the angle closing profile, respectively.

In this case, these click-fit elements may, for example, more specifically be provided with click-fit ribs which are provided on either side of the core element and are click-fittable behind flexibly arranged click-fit shoulders in such a fitting cavity. Such flexibly arranged click-fit shoulders may form part, for example, of elastic vertical walls of the fitting cavity or may form part of click-fit legs of an elastic fitting element which is fitted in a rigid fitting cavity, etc. Alternatively or additionally, for example, more specifically elastic click-fit legs may be provided as said click-fit elements on either side of the core element and are click-fittable behind, for example, shoulders of such a fitting cavity which may, more specifically, be of a rigid design.

The core element is preferably of a substantially rigid design. If desired, said click-fit elements may in this case be of an elastic design.

The angle attachment means are preferably of a profile-shaped design and comprise different profiles or profile parts. Each profile or profile part then has, viewed in the longitudinal direction, an essentially identical cross section. In this case, these profiles or profile parts are able to produce a coupling across the entire length of these profiles or profile parts, so that a strong mutual coupling is achieved. In this case, these angle attachment means are able to extend across virtually the entire length of the angle support profile and the angle closing profile, with the coupling then being produced across this height. Alternatively, it is possible to provide angle attachment means for this purpose in the form of profile parts which are distributed and fitted across the length of the angle support profile and the angle closing profile.

The frame attachment means of a fastening device according to the present disclosure are attachable to the angle support profile in such a way that the necessary space is kept clear in order to be able to mutually couple and uncouple the support profile coupling means and the closing profile coupling means. These frame attachment means may comprise known attachment means, such as for example brackets, fastening profiles, screws, bolts, click-fit elements, etc. Alternatively or additionally, these may also comprise, for example, glue or double-sided tape, etc.

The transverse attachment means of a fastening device according to the present disclosure may also comprise known attachment means, such as for example brackets, fastening profiles, screws, bolts, click-fit elements, etc. Alternatively or additionally, these may also comprise, for example, glue or double-sided tape, etc.

Said attachment means, such as angle attachment means, frame attachment means, transverse attachment means, and/or any other attachment means are preferably provided so as to be releasably attachable, so that respective profiles are easily disassemblable and reassemblable, for example for maintenance and repair of the wall elements.

Each holding surface of a fastening device according to the disclosure preferably forms part of a corresponding double-walled leg of the angle support profile in order to be able to produce a stronger and more compact angle support profile. Each closing surface preferably forms part of a tubular part of the angle closing profile in order to produce a strong angle closing profile.

The object of the present disclosure is furthermore also achieved by providing a wall assembly, comprising two wall elements and a fastening device for fitting these wall elements, wherein the fastening device is an above-described fastening device according to the present disclosure.

The present disclosure will now be described in more detail by means of the following detailed description of some preferred embodiments of wall assemblies according to the present disclosure. The sole aim of this description is to give illustrative examples and to indicate further advantages and particulars of the present disclosure and can therefore not be interpreted as a limitation of the area of application of the disclosure or of the patent rights defined in the claims.

In this detailed description, reference numerals are used to refer to the attached drawings, in which:

FIG. 1 illustrates a part of a first embodiment of a wall assembly according to the present disclosure in perspective, at the location of the wall angle, wherein the angle closing profile and the transverse closing profiles have been omitted;

FIG. 2 illustrates the part of the wall assembly from FIG. 1 in perspective, wherein, compared to FIG. 1, the angle closing profile is attached to the angle support profile;

FIG. 3 illustrates the part of the wall assembly from FIGS. 1 and 2 in perspective, wherein, compared to FIG. 2, the transverse closing profiles are attached to the transverse support profiles;

FIG. 4 illustrates the angle support profile from the wall assembly from the FIGS. 1-3 separately and in cross section;

FIG. 5 illustrates the angle closing profile from the wall assembly from the FIGS. 1-3 separately and in cross section;

FIG. 6 illustrates the part of the wall assembly from FIG. 1 in plan view, wherein the transverse support profiles and the wall elements have been omitted;

FIG. 7 illustrates the part of the wall assembly from FIG. 1 in plan view, wherein the wall elements have been omitted;

FIG. 8 illustrates the part of the wall assembly from FIG. 1 in plan view;

FIG. 9 illustrates the part of the wall assembly from FIG. 2 in plan view;

FIG. 10 illustrates the part of the wall assembly from FIG. 3 in plan view;

FIG. 11 illustrates a part of a second embodiment of a wall assembly according to the present disclosure in plan view, at the location of the wall angle;

FIG. 12 illustrates a part of a third embodiment of a wall assembly according to the present disclosure in plan view, at the location of the wall angle;

FIG. 13 illustrates a part of a fourth embodiment of a wall assembly according to the present disclosure in plan view, at the location of the wall angle;

FIG. 14 illustrates a part of a fifth embodiment of a wall assembly according to the present disclosure in perspective, at the location of the wall angle, wherein the transverse closing profiles have been omitted and some of the transverse attachment means are shown;

FIG. 15 illustrates the part of the wall assembly from FIG. 14 in perspective, wherein, compared to FIG. 14, additional transverse attachment means are attached;

FIG. 16 illustrates the part of the wall assembly from FIG. 14 in perspective, wherein, compared to FIG. 14, the transverse closing profiles are attached to the transverse support profiles;

FIG. 17 illustrates a part of a sixth embodiment of a wall assembly according to the present disclosure in perspective, at the location of the wall angle, wherein the transverse closing profiles have been omitted and some of the transverse attachment means are shown;

FIG. 18 illustrates the part of the wall assembly from FIG. 17 in perspective, wherein, compared to FIG. 17, additional transverse attachment means are attached and one of the transverse closing profiles is attached to a respective transverse support profile;

FIG. 20 illustrates a part of a seventh embodiment of a wall assembly according to the present disclosure in perspective, at the location of the wall angle, wherein the transverse closing profiles have been omitted;

FIG. 21 illustrates a fastening bracket of the frame attachment means of the wall assembly from FIG. 20 separately and in perspective;

FIG. 22 illustrates the angle support profile of the wall assembly from FIG. 20 in plan view, comprising two fastening brackets as illustrated in FIG. 21 attached thereto.

The illustrated wall assemblies (41) comprise various panels (2, 3) as wall elements (2, 3) which are fitted to form walls by means of a fastening device (1) according to the present disclosure.

These panels (2, 3) may serve as partition walls and may, to this end, assume many forms. They may be glass panels (2, 3), wooden panels, plastic panels, acoustic panels, etc.

The illustrated fastening devices (1) comprise angle support profiles (4) and angle closing profiles (9) between which the panels (2, 3) are attached. To this end, the angle support profiles (4) are attachable in a space in a known manner. To this end, the angle closing profiles (9) are attachable to the angle support profiles (4) by means of support profile coupling means (12) and closing profile coupling means (13).

The illustrated angle support profiles (4) and angle closing profiles (9) may be produced, for example by means of extrusion, so that they can easily be sawn to length without loss of functionality. To this end, they may be made, for example, from aluminium. These illustrated angle support profiles (4) and angle closing profiles (9) are in each case of a rigid design.

The angle support profiles (4) each comprise a first holding surface (5) for attaching a first said panel (2) thereto, and a second holding surface (6), which extends at a wall angle (α) with respect to the first holding surface (5), for attaching a second said panel (3) thereto. The respective panels (2, 3) in this case then extend parallel to the respective holding surfaces (5, 6), so that these panels (2, 3) also extend at this wall angle (α) with respect to each other. In the illustrated embodiments, the wall angle (α) is in each case 90°. Analogously, angle support profiles may also be configured to allow walls to adjoin each other at other wall angles, such as for example 45° or 135°, as long as the wall angle (α) in this case differs from a multiple of 180°.

In the first two illustrated embodiments (FIGS. 1-11), the fifth illustrated embodiment (FIGS. 14-16) and the sixth illustrated embodiment (FIGS. 17-19), the angle support profile (4) is composed of two double-walled legs (37), as a result of which this angle support profile (4) is of a stronger design than in the third illustrated embodiment (FIG. 12), the fourth illustrated embodiment (FIG. 13) and the seventh illustrated embodiment (FIGS. 20-22). The holding surfaces (5, 6) in the first two illustrated embodiments, the fifth illustrated embodiment and the sixth illustrated embodiment form part of a said double-walled leg (37) of the angle support profile (4).

In the various illustrated embodiments, the angle closing profiles (9) in each case comprise a first closing surface (10) for holding the first panel (2) between this first closing surface (10) and the first holding surface (5), and a second closing surface (11) for holding the second panel (3) between this second closing surface (11) and the second holding surface (6). In order to hold the panels (2, 3) between an angle support profile (4) and an angle closing profile (9) in this way, these respective closing surfaces (10, 11) likewise extend at the wall angle (α) with respect to each other. In this case, these closing surfaces (10, 11) extend parallel to the respective holding surfaces (5, 6) and parallel to the respective planes (39, 40) in which the respective panels (2, 3) extend.

In the first illustrated embodiment (FIGS. 1-10), in the fifth illustrated embodiment (FIGS. 14-16) and the sixth illustrated embodiment (FIGS. 17-19), each closing surface (10, 11) forms part of a tubular part (38) of the angle closing profile (9). Due to this tubular part (38), this angle closing profile (9) is of a stronger design than the variants in the other illustrated embodiments.

In the various illustrated embodiments, the holding surfaces (5, 6) and closing surfaces (10, 11) are in each case provided with respective slots (22, 23) for fitting respective sealings (24, 25) therein which protrude with respect to the holding surfaces (5, 6) and closing surfaces (10, 11) and are of an elastic design, so that they are depressed when the panels (2, 3) are fitted to these holding surfaces (5, 6) and closing surfaces (10, 11).

In order to hold the panels (2, 3) between the angle closing profile (9) and the angle support profile (4), the angle closing profile (9) is in each case attached to the angle support profile (4) by means of support profile coupling means (12) and closing profile coupling means (13). The support profile coupling means (12) are in this case provided on the angle support profile (4) between the said holding surfaces (5, 6). The closing profile coupling means (13) are in this case provided on the angle closing profile (9) between the said closing surfaces (10, 11). The coupling between the support profile coupling means (12) and the closing profile coupling means (13) is in this case produced between the panels (2, 3).

These support profile coupling means (12) and closing profile coupling means (13) are in each case couplable to each other along a coupling direction (X) which extends at a first coupling angle (β)>0° with respect to the first holding surface (5) and the first closing surface (10), and extends at a second coupling angle (γ)>0° with respect to the second holding surface (6) and the second closing surface (11). In this case, the sum of the first coupling angle (β) and the second coupling angle (γ) is equal to the wall angle (α). These angles (α, β, γ) were only shown in the first illustrated embodiment in FIG. 10, but are analogously present in the other illustrated embodiments. In the illustrated embodiments, the first coupling angle (β) is in each case equal to the second coupling angle (γ), with both being 45°. In those cases where the wall angle (α) is made greater than or smaller than 90°, these coupling angles (β, γ) will be correspondingly greater than or smaller than 45°, with coupling angles (β, γ) remaining equal. These coupling angles (β, γ) may optionally also deviate slightly with respect to each other.

In the illustrated embodiments, the closing profile coupling means (13) in each case comprise a core element (18) which is provided to extend between the panels (2, 3). Alternatively, such a core element could also form part of the support profile coupling means. If this core element (18) forms part of the closing profile coupling means (13), as in the illustrated embodiments, this core element will not impede fitting the panels (2, 3) to the angle support profile (4).

Such a core element (18) is preferably of a substantially rigid design in order to produce a strong unit of the fastening device (1) when producing the coupling between the closing profile coupling means (13) and the support profile coupling means (12).

In the first illustrated embodiment (FIGS. 1-10), in the fourth illustrated embodiment (FIG. 13), the fifth illustrated embodiment (FIGS. 14-16) and the sixth illustrated embodiment (FIGS. 17-19), the core element (18) forms part of the angle closing profile (9). The part of this core element (18) turned away from the closing surfaces (10, 11) is of a substantially narrowing design, its end being provided with a pointed end which widens with respect to a thinner core part and by means of which click-fit ribs (19) are formed on either side of the core element (18).

In this first, fourth, fifth and sixth embodiment, the angle support profile (4) is provided with a fitting cavity (20) in which an elastic fitting element (33) is fitted. The fitting cavity (20) is provided with a fitting shoulder (36) on either side of an access opening, behind which the fitting element (33) is secured. This fitting element (33) is provided with two elastic fitting legs (34) which in this case each engage behind a respective fitting shoulder (36). As the fitting element (33) is of an elastic design, it may be fitted between the fitting shoulders (36) via the said access opening and be click-fitted behind these. On their sides facing each other, the fitting legs (34) are provided with click-fit ribs (35) in order to allow the click-fit ribs (19) to engage with the core element (18) behind these. In order to click-fit the rigid core element (18) to the widened end in the fitting element (33), the fitting cavity (20) in the angle support profile (4) is made wider than the fitting element (33) at the location of the click-fit ribs (35), so that the fitting legs (34) can diverge outwards and can return elastically to the illustrated position. In this way, the core element (18) is click-fitted to the angle support profile (4) along the coupling direction (X).

Conversely, it would also be possible to analogously provide a core element on the angle support profile and a corresponding fitting cavity in the angle closing profile into which this core element is click-fittable by means of click-fit elements.

Instead of the illustrated click-fit elements, a large number of alternative click-fit elements may be elaborated.

The core element (18), the fitting cavity (20) and the fitting element (33) arranged therein are all of a profile-shaped design in order thus to be able to produce a strong connection between the angle support profile (4) and the angle closing profile (9). The core element (18) and the fitting cavity (20) in this case preferably extend across virtually the entire height of the angle support profile (4) and the angle closing profile (9). The illustrated fitting element (33) is of a substantially shorter design. In this case, various illustrated fitting elements (33) are arranged distributed across the length of the angle support profile (4) in the fitting cavity (20) in order to produce the connection. Alternatively, a single fitting element (33) could be designed which likewise extends across virtually the entire height of the angle support profile (4) and the angle closing profile (9).

In the second illustrated embodiment (FIG. 11), the angle support profile (4) is provided with a screw channel (12) as support profile coupling means (12). In this figure, the angle closing profile (9) is a substantially L-shaped profile, wherein the closing surfaces (10, 11) form part of the legs of this L-shaped profile. This L-shaped profile (9) preferably extends across the height of the angle support profile (4) in order to clamp the panels (2, 3) between both profiles (4, 9) to the greatest possible extent. The L-shaped profile (9) is in this case provided with several screw holes distributed across its length for fitting through screws (13) which form the angle profile coupling means (13). In this case, these screws (13) are screwed down in the screw channel (12) of the angle support profile (4) along the coupling direction (X). These screws (13) are subsequently hidden from view by means of a finishing profile (32) which can be click-fitted onto the L-shaped profile (9).

In the seventh illustrated embodiment (FIGS. 20-22), no angle closing profile (9) is illustrated, but a similar angle closing profile is attachable to the angle support profile (4) illustrated there in a similar manner.

In the third illustrated embodiment (FIG. 12), the angle support profile (4) and the angle closing profile (9) are coupled to each other by means of a securing element (18) as described and illustrated in WO 2022/167920 A1 in FIGS. 20-29. Here, this securing element (18) forms the core element (18) and is attachable on one side to the angle support profile (4) and is attachable on the other side to the angle closing profile (9).

To this end, the angle support profile (4) is provided with a modified fitting slot with holding edges (12) as support profile coupling means (12), behind which engagement edges of this securing element (18) can engage, as explained in WO 2022/167920 A1. When the securing element (18) has been secured in the angle support profile (4) in this way, the angle closing profile (9) can be click-fitted onto this securing element (18) along the coupling direction (X) as closing profile coupling means (13), as explained in WO 2022/167920 A1 for attaching a closing profile to such a securing element. According to the disclosure, the support profile coupling means (12) and the closing profile coupling means (13) are now provided to produce this connection along the coupling direction (X).

In this case, several such securing elements (18) are provided distributed across the length of the angle support profile (4) and the angle closing profile (9) in order to attach these to each other.

The illustrated fastening devices (1) furthermore also comprise a first transverse support profile (14) which is in each case attachable to the angle support profile (4) in order to form a first support frame together with the angle support profile (4), and a second transverse support profile (16) which is attachable to the angle support profile (4) in order to form a second support frame together with the angle support profile (4).

In the first six illustrated embodiments, these transverse support profiles (14, 16) are in this case attachable to the angle support profiles (4) using fastening brackets (21) which have been modified for the purpose.

In these illustrated embodiments, the angle support profiles (4) are to this end provided with a fitting slot (26) in each of their holding surfaces (5, 6), in which a first fitting element (27) of a said fastening bracket (21) may be fitted, behind holding edges which delimit this fitting slot (26). By means of screws (28), the fastening bracket (21) may then be fixed in this fitting slot (26) by clamping the first fitting element (27) against the holding edges.

The transverse support profiles (14, 16) are analogously provided with a fitting slot (31) in which a second fitting element (30) of a said fastening bracket (21) may be fitted behind holding edges which delimit this fitting slot (31).

By means of screws (29), the fastening bracket (21) may then be fixed in this fitting slot (31) by clamping the second fitting element (30) against these holding edges.

In the seventh illustrated embodiment, the transverse support profiles (14, 16) are attachable to the angle support profiles (4) by means of alternative fastening brackets (47).

In these illustrated embodiments, the angle support profiles (4) are to this end provided with a screw channel (53) in each of their holding surfaces (5, 6). The fastening brackets (47) are each provided with corresponding screw holes (49). By means of screws (48) which are fixed in this screw channel (53) through these screw holes (49), such a fastening bracket (47) may be attached to the angle support profile (4).

The transverse support profiles (14, 16) are provided with a fitting slot (31) in which a fitting flange (50) of such a fastening bracket (47) may be fitted behind holding edges which delimit this fitting slot (31).

By means of screws (not shown) which are fittable in screw holes (52) through passage openings (51), the fastening bracket (47) can then be fixed in this fitting slot (31) by clamping the fitting flange (50) against these holding edges.

The illustrated fastening devices furthermore comprise a first transverse closing profile (15) which is attachable to the first transverse support profile (14) in order to form a first closing frame together with the angle closing profile (9) for mounting the first wall element (2) between the first support frame and the first closing frame, and a second transverse closing profile (17), which is attachable to the second transverse support profile (16) in order to form a second closing frame together with the angle closing profile (9) for mounting the second wall element (3) between the second support frame and the second closing frame. When the transverse closing profiles (15, 17) have been attached to the transverse support profiles (14, 16), these prevent the angle closing profile (9) from becoming detached again. In this case, the angle closing profile (9) is secured between these transverse closing profiles (15, 17).

In the fifth illustrated embodiment, the transverse closing profiles (15, 17) are attachable to the transverse support profiles (14, 16) by means of attachment means (42) as described and illustrated in WO 2022/167920 A1, as transverse attachment means. In a first position as illustrated in FIG. 14, these attachment means (42) are freely fittable in the fitting slot (31) and are then rotated by 90° to the position as illustrated in FIG. 15, in which they are fixed in the fitting slot (31) and in which the transverse closing profiles (15, 17) can be click-fitted onto these attachment means (42). Analogously, in alternative embodiments, the transverse closing profiles (15, 17) may be attached to the transverse support profiles (14, 16) by means of alternative attachment means as described and illustrated in WO 2022/167920 A1, as transverse attachment means.

In the sixth alternative embodiment, alternative transverse attachment means are provided. In this embodiment, fastening plates (43) with vertical threaded rods (56) are fitted in the fitting slot (31) behind holding edges which delimit this fitting slot (31), as is illustrated in FIG. 17. A respective fastening profile (44) is hooked into a second fitting slot (54) of each transverse support profile (14, 16), as is illustrated in FIGS. 17-18. This fastening profile (44) is provided with fitting openings (55) for fitting through the vertical threaded rods (56). When these fastening profiles (44) have been hooked into the second fitting slot (54) in this way and have been fitted over the vertical threaded rods (56), nuts (45) on the threaded rods (56) are tightened in order to fix the fastening profiles (44). In this case, the fastening plates (43) are also pulled against the holding edges of the fitting slot (31) and thus fixed in the transverse support profiles (14, 16).

Instead of providing one illustrated fastening profile (44) which extends across the entire length of the respective transverse support profile (14, 16), it is also possible to provide several fastening profiles (44) distributed across the length of the transverse support profile (14, 16) in a similar manner.

After these fastening profiles (44) have been attached to the respective transverse support profiles (14, 16), it may be provided to click-fit the transverse closing profiles (15, 17) directly onto these fastening profiles (44). Both the transverse closing profiles (14, 16) and these fastening profiles (44) may to this end be provided with the necessary click-fit means. Alternatively, it is for example also possible to provide such a fastening profile (44) with optionally releasable click-fit elements (46) made of plastic, as illustrated in FIG. 19, in order to attach a transverse closing profile (14, 16) to this fastening profile (44) by means of such click-fit elements (46).

The illustrated transverse support profiles (14, 16) and transverse closing profiles (15, 17) may be produced, for example, by means of extrusion, so that they can easily be sawn to length without loss of functionality. To this end, they may be made, for example, from aluminium.

These illustrated transverse support profiles (14, 16) and transverse closing profiles (15, 17) are in each case of a rigid design.

In order to construct walls by means of the illustrated wall assemblies (41), firstly the angle support profiles (4) are connected to the transverse support profiles (14, 16) by means of frame attachment means, such as for example the fastening brackets (21) or (47) as described above. The fastening brackets (21) or (47) are to this end attached to the angle support profiles (4), as is illustrated in FIG. 6 or 22, and the transverse support profiles (14, 16) are connected to these fastening brackets (21) by one end, as is illustrated in FIGS. 7 or 20.

At their end which is not shown, the transverse support profiles (14, 16) may be connected to similar angle support profiles (4) or to a support profile by means of similar frame attachment means, for example as described and illustrated in WO 2022/167920 A1, in order to form said support frames. These support frames are fitted in a space in a known manner.

The panels (2, 3) are fitted to these support frames and against the said holding surfaces (5, 6), as is illustrated in FIGS. 1 and 8.

Subsequently, the angle closing profiles (9) are attached to the angle support profiles (4) by means of the support profile coupling means (12) and closing profile coupling means (13), in order to clamp the panels (2, 3) between the closing surfaces (10, 11) and the holding surfaces (5, 6), as is illustrated in FIGS. 2 and 9. Analogously, when the support frames are provided with further support profiles, closing profiles are attached to these support profiles by means of attachment means in order to clamp the panels (2, 3) between these, for example as described and illustrated in WO 2022/167920 A1.

Finally, the transverse closing profiles (15, 17) are attached to the transverse support profiles (14, 16), as is illustrated in FIGS. 3, 10-13, 16 and 19, for example by means of transverse attachment means, as illustrated in FIGS. 14-19, in order also to clamp the panels (2, 3) between the transverse closing profiles (15, 17) and the transverse support profiles (14, 16). In this case, the angle closing profiles (9) are secured between these transverse closing profiles (15, 17) and the associated coupling between the angle closing profiles (9) and the angle support profiles (4) is also secured.