EP2050892A2 - Corner profile for façades of buildings - Google Patents

Abstract

The profile (1) has a mounting region (3), over which the profile is mounted at a corner area of a building. An outwardly directed central bar is formed one-piece at the mounting region, and holding sections (8) laterally project from the central bar in a distance to the mounting region. Flexible tongues (13a, 13b) are provided at the respective holding sections, and extend outwardly in a direction to the holding sections such that a covering element is firmly clamped between the holding sections and the corresponding tongues in a force-fit manner. An independent claim is also included for a connecting element comprising a clamping region.

Description

The present invention relates to a corner profile for a support structure for cladding elements of a facade cladding of buildings according to the preamble of claim 1. Such carrier Eckprofile have a mounting area with which they can be attached to a corner or an edge of a building. An outwardly directed central web is integrally formed on the mounting portion of the corner profile, wherein from the central web at a distance from the mounting area on both sides in each case a holding web projecting laterally. At least one spring tongue is provided on each holding web, which extends outwards in the direction of the respective holding web such that a lining element can be clamped non-positively between a holding web and the corresponding spring tongue.

Devices for fastening of generally plate-shaped elements for covering building facades are known in various designs. Usually, a substructure of horizontal and / or vertical carrier profiles is mounted on the building wall to be clad, to which then the individual cladding elements are attached. There is a first type of attachment in the use of fasteners such as screws or rivets, which penetrate the cladding elements.

Also it is for example from the DE 694 19 733 T2 known cladding elements by means of flexible connecting elements which engage elastically resiliently in corresponding recesses of the cladding elements, to be positively and non-positively attached to the carrier profiles.

From the DE 93 19 695 discloses a mounting device for mineral panels on building facades, in which a network of vertical and horizontal metal profiles is attached to a building wall, wherein the metal profiles are designed such that they can take on the one hand separate mounting hooks and on the other hand separate springs in corresponding grooves. The cover plates of the facade cladding are pressed by the spring elements against a projection of the fastening hooks and thus indirectly mounted positively and non-positively on the metal profile. A disadvantage of this fastening device is the relatively large number of separate fasteners. Also, only flat surfaces can be clad herewith, whereas the cladding of edges or corners of buildings with this system is not feasible.

From the DE 42 06 345 C2 Furthermore, a device for fixing facade panels is known, with which a corner transition can be performed. For this purpose, a retaining profile by means of a clamping device, which may be formed in particular by screws, attached to a central mounting portion of a wall corner profile, that between the retaining profile and the wall profile, the edges of cladding panels are clamped. In this case, however, it is necessary that elastic material be arranged in the region of the tensioning device between the retaining profile and the wall profile and also between the edges of the panels to be clamped and the respectively adjacent areas of the wall profile or retaining profile. This results in a very complex construction, which is connected due to the numerous separate fasteners with a correspondingly high cost, especially during assembly of the system. It is also disadvantageous that the retaining profile is open in the retaining profile of the outer edge Has recess in order to reach the clamping device required for clamping the cladding elements or the corresponding screws. In order to hide this recess after installation, another element in the form of an elastic cover profile is provided, which must be mounted in an additional assembly step and in visually disadvantageous manner as a separate component is perceptible.

A corner profile for a support structure for cladding elements of a facade cladding of buildings of the type mentioned is from the GB 772 887 A known. In this case, a plurality of clamping straps for clamping cladding elements are made in one piece with the corner profile by being bent out of the legs of the mounting area. As a result, the production of the corner profile is complex and associated with correspondingly high costs. In addition, the number, the distance and the size of the individual clamping straps are fixed due to the fixed connection with the corner profile, so that a flexible adaptation to different cladding elements is not possible.

Object of the present invention is therefore to provide a carrier corner profile of the type mentioned, which is structurally simple in design and inexpensive to manufacture, and allows for easily feasible installation of the cladding flexible adaptation to different cladding elements.

This object is achieved by a corner profile according to claim 1. Advantageous embodiments and modifications of the invention will become apparent from the dependent claims.

It is essential in the solution according to the invention that the spring tongues are each formed on a spring clip, which can be mounted as a separate fastening element positively and / or non-positively on the corner profile. Preferably, the spring clips are designed in this way, that they can be attached by simple lateral clipping on the corner profile, so that insertion in the longitudinal direction of the corner profile is not required.

A significant advantage lies in the fact that the embodiment of the Eckprofils invention allows flexible adaptation to different cladding systems not only in terms of number and positions of the spring tongues, but especially with respect to the size, the arrangement and clamping force of the individual spring tongues optimal adaptability guaranteed the respective application. Depending on the type of cladding elements to be mounted different spring clips can be used in any number of desired locations in one and the same corner profile.

In this way, despite this great flexibility, a structurally simple and particularly inexpensive to produce embodiment of the corner profile is achieved.

Another advantage is that the embodiment of the Eckprofils invention allows a particularly fast and easy to perform mounting the cladding elements in the corner of a building. It suffices a simple, easily carried out by hand lateral insertion of the cladding elements between the placed at the desired locations spring tongues and the respective retaining web.

Nevertheless, in this case depending on the size of the cladding element with only a single spring tongue or with only a few spring tongues sufficient stability of the facade cladding can be achieved, which withstands even shocks and external forces due to wind or other influences. Even unwanted vibrations are reliably prevented, so that no disturbing noises occur.

In this case, only a very small number of mounting elements is required because neither separate retaining hooks or retaining profiles to be clamped by additional screws, nor additional elastic materials or seals are required. The corner profile according to the invention is therefore characterized not only by a simple construction and cost manufacturability, but above all by a low effort during assembly.

At the same time, a particularly simple and yet visually appealing design of a corner region of a facade cladding is made possible. There are no additional cover profiles or separate intermediate profiles required to perform the corner area.

It is particularly advantageous if the spring clips each have a frame from which the spring tongue is punched out. As a result, a particularly cost-effective embodiment of the spring clip is made possible, so that the system of corner profile and spring clips is constructively simple and inexpensive to produce. Furthermore, this can be done simultaneously with the punching process and adapted to the particular application of the Fderklammer shaping of the spring clip.

It is also particularly advantageous if a spring clip is positively and non-positively inserted either between a respective holding web and a projection spaced therefrom on the central web or between a holding web and the mounting region of the corner profile. In this way, with a simple construction of the corner profile, a secure hold of the spring clips even before attachment of the cladding elements allows.

In this sense, it is furthermore particularly advantageous if the spring clip consists of spring steel and is formed to form at least one bending point so that it can be mounted in a prestressed state on the corner profile. This allows the spring clip even before Attaching a trim element securely fixed to the corner profile, which greatly simplifies the installation of the trim elements. Preferably, a bending point of the spring clip may be provided where the frame of a stamped spring tongue begins, so that the frame surrounding the spring tongue is angled relative to the plane of the spring tongue.

In order to optimally adapt the required clamping forces to the lining elements used in each case, it is also advantageous if the spring clips in the longitudinal direction of the corner profile are slidably mounted thereto. In particular, the spring clips can first be attached to the corner profile only at a distance estimated by the installer before subsequently an easily executable final positioning takes place only when the respective trim elements are attached.

It when the holding webs are both formed on the outer end of the central web is particularly advantageous. In this way, only the two holding webs form the visible from the outside corner region of the facade cladding. Further elements between the two retaining webs are therefore not required, so that a visually appealing design of this corner without disturbing intermediate joints or intermediate elements is possible.

According to a preferred embodiment, the two holding webs may be arranged such that, viewed from the outside of the facade cladding, they enclose between them an angle which is greater than 180 °. The corner profile thus obtained is therefore suitable for such building corners, which protrude with their apex or corner edge to the outside and where the two adjoining the corner facades of the building also form an angle which is greater than 180 ° on the outside.

Preferably, the two holding webs close on the outside an angle of 270 °, wherein the two holding webs each protrude at an angle of 45 ° from the central web. Such a corner profile is by far the most common Training of building corners with a right angle suitable. The holding webs directed towards the assembly area are therefore likewise oriented at right angles to one another, so that two lining elements to be clamped thereby are likewise arranged at right angles to one another. In this case, the corner profile can be mounted both vertically and horizontally and in particular also for covering horizontal and vertical edges in the region of building openings, for example on windows or doors, are used.

According to an embodiment variant of the corner profile according to the invention, the two holding webs can also protrude from the central web in such a way that they form an angle between them on the outside which is smaller than 180 °. In this way, the corner profile can be used in building corners, which are directed inwards towards the building interior, as may be the case for example in the field of building courtyards. Again, it is particularly advantageous to arrange the two holding webs so that they each have an angle of 135 ° to the central web and between them include a right angle, which in turn corresponds to the most commonly encountered application.

It is also particularly advantageous if the holding webs have only a relatively small width in order to cover the outer surface of the cladding elements as little as possible. For this purpose, it is in particular proposed that the width of the retaining webs is less than the distance between the mounting region of the corner profile and the base of the retaining webs, via which the retaining webs are connected to the central web. The width of the holding webs need only be such that they can support the region of a cladding element which is clamped by the spring tongues against the retaining webs. Due to a small width of the holding webs, which is preferably constant over the length of the corner profile, a very discreet design of the corner profile according to the invention ermöglichst which only minimally affects the desired appearance of the selected cladding.

A visually particularly appealing design of the corner profile can also be achieved in that the free end edges of the support webs are chamfered or rounded, so that a conditional by the thickness of the holding webs step formation in the transition region between the surface of the cladding elements and the retaining webs can be avoided.

Preferably, the corner profile according to the invention is produced by strand greeting, wherein it may advantageously consist of aluminum or a suitable aluminum alloy. The surfaces can be treated to achieve certain effects, in particular anodized and / or painted.

It is also particularly advantageous if the inventively provided spring tongues rests with their free ends at least selectively to the respective holding web. In this way, a particularly stable embodiment of the facade cladding can be achieved, in which the cladding elements are pressed with a particularly high spring force against the inside of the holding webs.

The strength of the clamping connection of the cladding elements between the retaining webs and the spring tongues can be further improved by the fact that the spring tongues extend at an acute angle to the respective retaining web. This angle can advantageously be less than 75 °, in particular less than 60 °. In this way, the advantage of a stable fixation of the cladding elements is combined with the advantage of a very easy to perform mountability. To attach the cladding elements, it is sufficient to insert this between the holding web and the free end of the spring tongues, which can be easily performed by hand despite the high clamping force.

The present invention is also a spring clip of the type described above, which is suitable for use on a corner profile according to the invention.

Furthermore, the present invention relates to a cladding element, which can be mounted on a corner profile according to the invention, and which advantageously one or more laterally projecting clamping areas, which can be clamped between a holding web and at least one associated spring tongue.

It is particularly advantageous if the cladding element is formed from an at least approximately flat metal sheet, which is in particular folded over at right angles in one or more edge regions. In this case, it is proposed to form the laterally protruding clamping regions from an edge portion of the metal sheet that has not been folded or unconverted, or else from an edge region of the metal sheet bent over by 180 ° on itself. In this way, a relatively easy to perform mountability of the cladding elements can be achieved with a relatively thin clamping area, wherein in the visible side regions of the cladding elements nevertheless a possibly desired appearance of a correspondingly thicker cladding element can be achieved.

Further advantages and features of the invention will become apparent from the following description and the embodiments illustrated in the drawings.

Show it:

FIG. 1:

Cross-section through an inventive corner profile with two different spring clips;

FIG. 2:

Cross section through the corner profile FIG. 1 without spring clips;

FIG. 3:

three-dimensional representation of a spring clip FIG. 1 ;

FIG. 4:

Cross section through the spring clip off FIG. 3 ;

FIG. 5:

Cross section through a façade corner with a vertically arranged corner profile;

FIG. 6:

Cross section through a façade corner with a horizontally arranged corner profile; and

FIG. 7:

Cross-section through an arrangement of a horizontally arranged corner profile on a windowsill.

That in the Figures 1 and 2 Corner profile 1 shown in cross section can be produced in aluminum as an extruded profile in any length. It serves as a carrier profile for holding cladding elements 2, which are used for the cladding of building facades. The corner profile 1 has a mounting region 3, which consists essentially of two perpendicularly aligned legs 4, which can be attached either directly to a rectangular edge of a building or to a connected to a building wall 5 support structure 6. From the connection point of the two legs 4, a central web 7 extends obliquely outwards, wherein the central web 7 to both legs 4 of the mounting portion 3 each includes an angle α of 135 °. At the end of the central web 7, two retaining webs 8 are formed, which are aligned as well as the two legs 4 at a right angle to each other. Both holding webs 8 each enclose an angle β of 45 ° to the central web 7. The two retaining webs 8 each have a width which is limited to approximately one third of the length of the central web 7. The outer free ends of the two retaining webs 8 are each provided with a bevel 9 sloping down towards the central web 7.

To stiffen the mounting area 3, an outwardly projecting bearing area 10 is formed in each leg 4, on which the inner side facing the building wall 5 of a cladding element 2 can be supported. The surfaces of the bearing areas 10 are formed parallel to the respective legs 4.

At the in FIG. 1 illustrated embodiment, two differently shaped spring clips 11 a and 11 b are each mounted under bias on the corner profile 1. In this case, the overall formed with a rounded cross-section spring clip 11b is supported with its inner end of the formed between the leg 4 the projecting bearing portion 10 edge 12, while its outer end, which forms the spring tongue 13b according to the invention, is supported on the associated holding web 8 , A central region of the spring clip 11 b is located on the central web 7.

The also in the FIGS. 3 and 4 separately shown spring clip 11a consists of a metal strip of spring steel, from which a double-L-shaped gap 14 is punched out. In this way, there is a spring tongue 13a located within the intermediate space 14, which is surrounded by a frame 15 of the spring clip 11a. The spring clip 11a has two bending points 16 and 17, wherein the first bending point 16 extends at the transition point between the frame 15 and the flat central region 18 and the second bending point 17 is located on the opposite side of the frame 15 foot portion 19 of the spring clip 11a. In this case, a cutout 20 can also be punched out at the second bending point 17. The bends at the two bending points 16 and 17 are designed in different directions, wherein the foot portion 19 is about twice as bent at about 60 ° here as the frame 1, which extends at an angle of about 30 ° to the central region 18 , The spring tongue 13a is in a plane with the central region 18 of the spring clip 11a.

The spring clip 11a according to the invention is used on the corner profile 1 in such a way that its foot region 19 is supported on the edge 12 between the leg 4 and the bearing region 10 formed therein, while the outer region of the frame 15 is in the middle between the middle web 7 and the associated Support web 8 formed edge 21 is supported. The outer edge of the spring tongue 13a is also applied to the inside of the holding web 8, whereby the spring clip 11a is mounted in total under a bias on the corner profile 1. The spring clip 11a can be attached by simply clipping by first the frame 15 and the spring tongue 13a are pushed under the holding web 8 and then the foot portion 19 by slight pressure on the central region 18 via the storage area 10 in his in FIG. 1 shown position is pressed.

At the in FIG. 5 shown application, the corner profile 1 is arranged vertically in the region of a window frame 22. It is mounted with a leg 4 of the mounting portion 3 via two angle iron 23 of the support structure 6 on the housing wall 5. A cladding element 2 is parallel to the plane of the window frame 22 in the illustration of FIG. 5 has been inserted from the left to the right under the outer retaining web 8, with a right located clamping portion 24 of the cladding element 2 has interposed between the retaining web 8 and the outer end of the spring tongue 13a of the spring clip 11a and is clamped here. This insertion is relatively easy to carry out by hand despite the high clamping forces. The opposite end of the cladding element 2 can be fixed in a known per se, in particular with a mounting bracket 25 to a support section 26 of the support structure 6.

In FIG. 6 the corner profile 1 is mounted horizontally above the window frame 22 to hold the cladding elements 2 located above the window in the manner according to the invention. At the same time, the lower holding web 8 of the corner profile 1 also holds a lining element 2, which covers the upper wall of the window recess. Because of this cladding element 2 is fixed on the side facing the building wall 5 through the window frame 22 toward the window, no separate spring clip needs to be used for this cladding element 2.

In FIG. 7 the lower portion of the window is shown, wherein an inventive corner profile 1 is also arranged horizontally. The corner profile 1 holds in the manner described above, the cladding elements mounted below 2. On its upper support web 8 is based in the illustrated embodiment, the sill 27, which outside with a drip edge 28 and inside the window frame 22 and / or on the building wall. 5 is attached.

Claims (13)

Corner profile (1) for a support structure (6) for cladding elements (2) of a facade cladding of buildings, wherein the corner profile (1) has a mounting area (3), via which it can be mounted on a corner region of a building,
wherein an outwardly directed central web (7) is integrally formed on the mounting area (3), from which a retaining web (8) projects laterally at a distance from the mounting area (3) on both sides,
wherein on each retaining web (8) at least one spring tongue (13a, 13b) is provided, which extends so outward in the direction of the retaining web (8) that a cladding element (2) frictionally between a retaining web (8) and the corresponding spring tongue (13a, 13b) can be clamped,
characterized,
in that the spring tongues (13a, 13b) are formed on a spring clip (11a, 11b) which can be fastened as a separate fastening element in a form-fitting and / or force-locking manner on the corner profile (1), in particular by clipping. Corner profile (1) according to claim 1, characterized in that the spring clip (11a) comprises a frame (15) from which the spring tongue (13a) is punched out. Corner profile (1) according to claim 1 or 2, characterized in that the spring clip (11 a, 11 b) positively and non-positively between a retaining web (8) and at a distance from the central web (7) projecting projection or between the retaining web ( 8) and the mounting area (3) can be used. Corner profile (1) according to one of claims 1 to 3, characterized in that the spring clip (11a) consists of spring steel and at least one bending point (16, 17), so that it can be inserted under pretension on the corner profile (1). Corner profile (1) according to one of claims 1 to 4, characterized in that the spring clip (11a, 11b) in the longitudinal direction of the corner profile (1) displaceable on the corner profile (1) can be attached. Corner profile (1) according to one of the preceding claims, characterized in that the holding webs (8) protrude with a width which is smaller than the distance between the retaining webs (8) and the mounting area (3). Corner profile (1) according to one of the preceding claims, characterized in that the free end of the retaining webs (8) is chamfered or rounded. Corner profile (1) according to one of the preceding claims, characterized in that it is an extruded profile, which preferably consists of aluminum or in particular of an aluminum alloy. Corner profile (1) according to one of the preceding claims, characterized in that the spring tongues (13a, 13b) each extend with their free ends up against the corresponding retaining web (8). Corner profile (1) according to one of the preceding claims, characterized in that the spring tongues (13a, 13b) extend at an acute angle to the respective retaining web (8), which is smaller than 75 °, preferably smaller than 60 °. Spring clip (11a, 11b) for a corner profile (1) according to one of the preceding claims, characterized in that the spring clip (11a, 11b) is designed according to one of claims 1 to 10. Cladding element (2) for a corner profile (1) according to one of Claims 1 to 10, characterized in that it has at least one lateral projecting clamping area (24) which is arranged between a retaining web (8) and at least one associated spring tongue (13a, 13b). can be clamped. Cladding element (2) according to claim 12, characterized in that it is formed from an at least substantially flat sheet metal, which is folded over in one or more edge regions, preferably at right angles to the plane of the metal sheet, wherein the at least one laterally projecting clamping region (24) of a not folded or formed from a bent by 180 ° on itself edge region of the metal sheet.

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