EP0443433B1 - Façade covering - Google Patents

Abstract

The invention relates to a facade covering having panel-like covering elements (1) which comprise a panel base (2) and edge-pieces which are bent off at least on vertically running edges, the vertically running edge-pieces (3,3a) having mutually spaced clinching devices for suspending the covering elements (1) in holding devices, corresponding to the clinching devices, of the supporting structure. The present invention provides such a facade covering which is improved in comparison with known facade coverings of this type. The solution according to the invention is characterised in that the clinching device is formed by clinching webs, provided on the edge-pieces and extending at a distance from the panel base (2) and substantially parallel thereto, and the receiving devices are formed by clinching brackets (6), projecting from carrying elements of the supporting structure and having slits for the engagement of the clinching tabs. <IMAGE>

Description

The invention relates to a facade cladding according to the preamble of claim 1.

Facade cladding is known in which the edge folds are essentially formed by bevels angled perpendicularly in the direction of the substructure, the latching recesses for hanging on bolts arranged parallel to the building wall to be clad and connected to the substructure. These bolts are arranged between the legs of a U-shaped mounting rail at a vertical distance of approximately 80 cm from one another. Such a mounting rail can serve to hold two horizontally abutting wall elements on their mutually opposite vertical abutting edges. The bolts are then disadvantageously visible between the adjoining wall elements. These known facade claddings also have defects in terms of dimensional stability.

From AT-B-385 305 a facade cladding of the type mentioned has become known. It has cassette-like cladding elements which comprise a cassette floor and at least on mutually opposite, vertically running edges in the direction of a substructure from the cassette floor, angled edge folds, with spaced-apart latching devices in the vertically running lateral edge regions of the cladding elements for hanging the cladding elements into corresponding ones , holding devices attached to the substructure are provided. The jack consoles have slots for Kirkstegen's intervention. To form these latching webs, sheet metal supports are fastened to the first bending portions and run parallel to the cassette bottom, which are T-shaped and have a transverse web for fastening to the first bending and a longitudinal web which runs parallel to the cassette bottom. The latch brackets with the slots are inserted into U-shaped recesses in the legs of the U-shaped mounting rails, which are fastened vertically to the wall, the brackets being fastened therein by means of screws.

A facade cladding which can be attached to a building wall and in which the cladding elements have a first fold perpendicular to the cassette floor and a second fold which runs parallel to the cassette floor has become known from DE 37 33 359 A. The latch brackets with the slots are clamped in hollow profiles on a support rail that runs true to normal, whereby exact locking is not possible.

From DE-U 8621 152 a kit consisting of individual construction elements for wall or ceiling cladding on buildings has become known. In the embodiment (see FIG. 9), in which the cladding elements have a first and a second fold, a first U-shaped mounting rail is provided, which is fastened perpendicularly to the building wall; At the free ends of the legs, a hat-profile-like mounting rail is attached, which partially engages inside the two legs of the mounting rail, and hooks are provided on the L-shaped bevels of the hat-profile-like mounting rail, into which the panel elements are hung, with closed slots provided in the second bend are that can be slid over the slots and only then hooked in. Obviously, in order to avoid damage and possibly corrosion, a shaped piece is provided (see DE-U-8621 152, Fig. 22), which is designed as a plastic clip and has a shape which is adapted to the complicated shape of the jack brackets with slot.

The object of the invention is to provide a facade cladding of the type mentioned, which is simplified compared to the facade cladding known from AT-B-385 305. In particular, a rastering of the latching brackets and the latching webs should be provided, which is predetermined by the construction of the facade cladding.

This object is achieved according to the invention by the characterizing features of claim 1.

The fact that the vertical edge bend includes a first edge bend angled from the cassette bottom and a second edge bend angled from the first edge bend means a considerable simplification, in particular compared to the construction according to AT-B-385 305. In particular with respect to this concept, a clear latching is possible and any subsequent adjustments on the construction site, such as are required for the design according to AT-B 385 305, are no longer necessary with the facade cladding according to the invention. In addition, it is also no longer necessary to use special additional latching brackets in the mounting rails and first to move them across the entire vertical height of the mounting rail and then to adjust and fix them, because in the embodiment according to the invention the jack consoles are integrated on the mounting rail from the outset. Due to the two-legged C-shaped design of the edge edges, the cladding elements are given a high degree of connection stability, which is advantageous not only in terms of the dimensional stability of the cladding elements in the assembled state, but also in terms of stresses when transporting the connecting elements from the manufacturing site to the construction site.

Such bends have already been disclosed in DE-A-3733 359 and DE-U 8621 152. At the second fold of the known cladding elements, however, latch webs, as in the case of the cladding elements according to the invention, are not present, but openings.

Due to the design according to the invention and by the provision of a narrow grid of the jack consoles of approx. 0.1 m. According to claim 2 and in that the brackets for holding a cladding element are expediently arranged opposite one another at the same height, the assembly on site is extremely facilitated, since the assembly personnel can largely rely on the grid dimensions of the specified dimensions. Because of the narrow grid dimension, it is no longer necessary as before and in the known facade cladding it is necessary to provide project-specific suspension points on the cladding elements and the mounting rails. The level of the mountings is the same for all projects, so that detailed drawings can be omitted. This is further supported by the fact that, according to claim 3, the latch webs are arranged at the same height opposite each other on the vertically extending edges of the cladding elements.

Since the jack brackets are formed in one piece with a leg of the profile of the mounting rails projecting in the direction of the jack webs, the mounting rail profile can advantageously be prefabricated in a standard length with the jack brackets in the specific grid spacing, so that no measures for project-related are carried out on the construction site or during prefabrication Attachment of support elements to the substructure may be required. A sorting of the mounting rails on the construction site can be omitted, since all rails have the same grid dimension in relation to the latching brackets and are not attached to the mounting rail bolts in a project-specific manner as in the known arrangements. The possible uses of DIN rail profiles in a standard length result in further advantages with regard to the pretreatments, such as the application of a coating which improves the appearance and possibly protects against corrosion, with a device tailored to this standard length, the transport to the construction site and storage. Residual rails may only be used after repainting on any other construction site.

In the manner according to the invention, clamping devices are provided which can be pushed onto the latching webs, wherein they have the shape of a spring clip and are held resiliently on the latching webs. As a result, the latch bars are clamped in the slots of the latch brackets, so that the latch bars are immobilized within the slots, so that e.g. rattling noises cannot occur when the facade cladding is exposed to wind. When using metallic clips, an electrical connection is made between the cladding elements and the substructure, so that only a common grounding line is required for grounding the facade cladding, in contrast to, for example, the design according to DE-U-8621 152, in which plastic caps are provided , which provide electrical insulation of the cladding elements from the substructure.

So that the clamping elements can be better attached to the latching web, a recess is provided according to claim 5. According to claim 6, a stop lug can be provided which serves on the one hand to guide the spring clip and on the other hand as a stop against the latch bracket.

Further advantageous refinements and improvements of the invention emerge from the further subclaims.

The invention and further advantageous refinements and improvements are to be explained and described in more detail with reference to the drawing, in which exemplary embodiments of the invention are shown.

• Fig. 1 ein Ausführungsbeispiel für ein Wandverkleidungselement einer erfindungsgemäßen Fassadenverkleidung, das in Tragschienen mit Klinkkonsolen eingehängt sind, in einer Vorderansicht,
• Fig. 2 das erfindungsgemäße Verkleidungselement und die Tragschienen gemäß der Fig. 1 in einer Vertikalschnitt,
• Fig. 3 das Verkleidungselement und die Tragschienen in Aufsicht, teilweise geschnitten,
• Fig. 4 einen Klinksteg eines Verkleidungselementes,
• Fig. 5 eine auf einem Tragschienenprofil ausgebildete Klinkkonsole zum Einhängen eines Klinksteges,
• Fig. 6 Einen Federclip zum Aufschieben auf einen Klinksteg,
• Fig. 7 den Federclip nach Fig. 6, der auf einen in eine Einschlitzung in einer Klinkkonsole eingreifenden Klinksteg aufgeschoben ist, und
• Fig. 8 ein weiteres Ausführungsbeispiel für ein Verkleidungselement einer erfindungsgemäßen Fassadenverkleidung, teilweise horizontal geschnitten.

Show it:

• 1 shows an embodiment of a wall cladding element of a facade cladding according to the invention, which are suspended in mounting rails with latch brackets, in a front view,
• 2 the cladding element according to the invention and the mounting rails according to FIG. 1 in a vertical section,
• 3 the cladding element and the mounting rails in supervision, partially cut,
• 4 a latch web of a cladding element,
• 5 a latching bracket formed on a mounting rail profile for hanging a latching web,
• Fig. 6 A spring clip for sliding onto one Klinksteg,
• FIG. 7 shows the spring clip according to FIG. 6, which is pushed onto a latching web engaging in a slot in a latching console, and
• Fig. 8 shows another embodiment of a cladding element of a facade cladding according to the invention, partially cut horizontally.

2 to 3, reference number 1 denotes a cassette-shaped cladding element which has a cassette base 2 and a bevel 3 or 3a on opposite, vertically extending edges. The bevels 3 and 3a comprise a first bevel 8 or 8a perpendicular to the cassette base 2 and a second bevel which is angled inwards from the perpendicular bevel 8 or 8a with respect to the surface of the cassette base and runs parallel to the surface of the cassette base 2 9 or 9a. From the folds 9 and 9a, latch webs 5 and 5a, respectively, are formed as latch tabs 5 and 5a. The cladding element 1 further comprises on its upper edge a bevel 4, a first bevel 11 perpendicular to the cassette bottom 2 and one second, bent from the bend 11 upward bend 10 comprises. As can be seen in particular from FIG. 3, the fold 11 has a greater length than the fold 12. In the present exemplary embodiment, the distance between the latches 5 and 5a from the cassette bottom is approximately 50 mm.

With 13 and 13a in FIGS. 1 to 3, the foothills of the mounting rail profiles are designated. These support rail profiles, which serve as a substructure, are connected to the wall to be clad via a leg 17 or 17a, while a leg perpendicular to the leg 17 or 17a has latching brackets 6 at a certain grid spacing, in the present example at a distance of 10 cm, which are integrally formed with this leg.

In Fig. 4, in which a latch 5 is shown separately, 14 denotes a recess delimited by a nose 15, which forms a seat for the spring clip 16, which is shown separately in Fig. 6 and which corresponds to this recess Width, and as can be seen in FIG. 6, has bends 18 and 19 at its upper end.

In FIG. 5, which separately shows a latch bracket 6, 7 denotes a slot for the engagement of a latch bracket 5.

To assemble the facade cladding, the cladding elements 1 with the latches 5 are hooked into the slots 7 of the latching brackets 6, each latching bracket of the mounting rail profile 13 or 13a being used in the present exemplary embodiment. In the present exemplary embodiment, the raster width of the latch tabs is 10 cm. As can be seen in FIG. 2, cladding elements arranged vertically one above the other overlap, in that the respective upper cladding element 1a projects beyond the fold 10 of the upper fold 4 of the respective lower cladding element 1. Since the lower fold 12a of the upper trim element 1a is shorter than the first fold 11 of the fold 4 of the respective lower trim element, the fold 10 at the upper end of a trim element can protrude below the overlying trim element. This ensures that the cladding elements overlap in the vertical direction and connect the cassette bottoms practically flush to one another. The suspension path in the direction of the wall is 15 mm in the present exemplary embodiment. With a construction depth of 60 mm, there is no need to click the substructure for the horizontal facade joints.

In Fig. 8 in which an embodiment of a joint between two horizontally adjacent cladding elements is shown, 13 'is an expediently designed as an H-profile support rail, whose side legs 17 and 17a are provided with latch brackets according to FIG. 5. Due to this advantageous design of the mounting rail profile as an H-profile, only one mounting rail is required for the horizontal connection of two horizontally adjacent plates.

By using the spring clips 16, the latches 5 are immobilized in the slots 7 of the latch bracket 6, so that, for. B. rattling noises caused by wind. FIG. 7 shows how the spring clip 16 clamps the tab 5 in the slot 7. Especially by pressing the clip close to the lower end, the clip can be used to create a non-positive connection between the latch and the bracket. Since the spring clip corresponds in width to the recess 14 in the latch 5, a seat for the latch is formed by the recess 14, so that the spring clip, which is longer than the latch after it has been pushed onto the latch, neither in can be stripped more vertically or in the horizontal direction from the latch clip without the application of force by the bend 18 and the nose 15 each forming a vertical or horizontal stop. By providing a relatively large width for the spring clip or the latch clip, in the present example 15 mm or 20 mm, a large freedom of movement for installation tolerances and thermal expansion is guaranteed. The nose 15 prevents the latch clip provided with the spring clip from slipping out of the slot in the latch bracket during lateral displacement. Because the spring clip is made of metal, an electrical connection is made from the cladding elements to the substructure, so that advantageously only a single grounding line is required for the entire wall cladding.

The narrow grid of the suspension points helps to prevent deformation of the cladding elements that impair the appearance of the facade cladding. The fact that the edge of the cassette bottoms is folded in a C-shape on the vertical sides results in a high torsional rigidity of the cassette-like cladding elements, so that deformations of these during transport can be largely avoided. The tight grid of the latches or the latch brackets makes a project-related calculation of the suspension points of the cladding elements unnecessary. Time-consuming work for the project-related prefabrication of the cladding elements and mounting rails is eliminated. For length information that must be communicated to the assembly staff for the work on site, you can largely rely on the grid dimensions. The mounting rails can advantageously be manufactured in standard lengths. There is no need to sort on-site manufactured mounting rails on site. The support rails manufactured in standard lengths also have advantages in terms of pretreatment, e.g. the application of a coating in that the parts of the same length can be pre-processed in a treatment device tailored for this purpose. Since the mounting rails can be delivered to the construction site in a standard length, there are also advantages in terms of warehousing. Residual rails may only be reused on any other construction site after repainting. Fastening elements need not be attached to the elements either before or after the coating. This eliminates the risk of crevice corrosion due to chrome plating residues and there is no need to subsequently coat fasteners.

Claims (7)

1. Façade facing with cassette-type facing elements (1) which comprise a cassette bottom (2) and, at least on mutually opposite, vertically extending edges, edge bends (3, 3a; 4, 4a) bent away from the cassette bottom (2) in the direction of a substructure, there being provided in the vertically extending, lateral edge regions of the facing elements catch facilities arranged laterally at a distance from one another for suspending the facing elements (1) in corresponding holding facilities provided on the substructure, the catch facilities being formed by catch webs (5) which are provided on the edge bends, extend at a distance from the cassette bottom (2) and essentially parallel thereto, and project from the edge bend, and the holding facilities being formed by catch brackets (6), provided on essentially vertically extending support rails, with slits (7) for the engagement of the catch webs (5), characterised in that each vertical edge bend (3, 3a) comprises a first bend (8, 8a) bent away from the cassette bottom and a second bend (9, 9a) bent away from the first bend, that the catch webs (5) project from the second bend (9, 9a) of the edge bend (3, 3a), that the catch webs (5) are held resiliently in the slits (7) of the catch brackets (6) by a clamping facility formed by an essentially U-shaped spring clip (16) which can be pushed onto the catch webs, and that the catch brackets are arranged at the same height on the façade at a modular distance.
2. Façade facing according to Claim 1, characterised in that the modular distance is approximately 0.1 m.
3. Façade facing according to one of Claims 1 and 2, characterised in that the catch webs (5) are arranged at the same height in each case opposite one another on the mutually opposite, vertically extending edges of the facing elements (1).
4. Façade facing according to one of Claims 1 to 3, characterised in that the support rails with the catch brackets (6) are designed essentially in the form of U-shaped or H-shaped profiles.
5. Façade Facing according to one of Claims 1 to 4, characterised in that the catch webs (5) have in their lower edge a recess (14) forming a seat for the closed end of the U-shaped spring clip (16).
6. Façade facing according to one of Claims 1 to 5, characterised in that the catch webs have on their lower edge a stop nose (15) for contact against the catch bracket (6).
7. Façade facing according to one of Claims 1 to 6, characterised in that the catch webs (5) are arranged along the bend at a modular distance which is equal to or a multiple of the modular distance of the catch brackets (6).

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