EP2050893A2 - Cladding element for façades of buildings - Google Patents

Abstract

The cladding element (1) has a marginal strip (5c) bordering at a center piece (2) that is bent in two pats in different directions. A bending is directed behind a rear side and bordering the center piece is carried out by two opposite peripheries of the marginal strips arranged on the center piece around at an angle of approximately one hundred eighty degree. A clamping element is brought into a recess (10) in a direction perpendicular to the rear side of the center piece and is accommodated in form-fit and force-fit manner for assembly of the cladding element.

Description

The present invention relates to a cladding element for a cladding of building facades according to the preamble of claim 1. Such cladding elements have an at least substantially planar, preferably rectangular central part with a front outer surface, which can be mounted facing away from a building, and their back to the inside Building facing is mountable. Adjacent to the middle part are edge strips of the lining element, which are bent over in such a way that they form an end face of the lining element projecting at a certain angle from the rear side of the middle part. In this case, all edge strips adjoining the middle part are each bent at least twice in different directions.

For cladding building facades usually a support structure of horizontal and / or vertical support profiles is mounted to the building wall to be clad, to which then the individual cladding elements are attached.

From the DE 94 03 018 U1 are cover elements for building facades in known, which have a rectangular cassette shape with a flat central part, wherein the adjacent to the central part edge strips are each bent once at right angles to the rear of the cover member. On the inside of this bent edge strips a plurality of fastening bolts are attached, via which the cover element in fastening hooks a fixed to a building facade support structure can be hung. Such an embodiment of a single cladding element, which must be assembled from several separate elements, is associated with a great effort and correspondingly high costs in the production.

From the DE 28 47 346 A1 are paneling panels for a wall or ceiling paneling are known, which are bent at their side edges twice in the same direction by 90 ° backwards, so that there are U-shaped edge profiles in which openings are introduced for fastening the trim panels, in which fasteners can engage a mounted on a wall support structure. On the upper and lower sides of the rectangular central part, the trim panels are not reshaped, so that in each case a cut edge of the panel forming the trim panel is exposed and visible.

From the DE 78 27 877 U1 are made of sheet metal facade elements for a cladding of buildings known in which the vertical side edges of the rectangular surface are bent twice by 90 ° to the rear, so that there are also U-shaped edge profiles. In the free legs of the U-profiles Schlüssellochausnehmungen are introduced for receiving support members of a support structure. The upper and lower edge regions are bent twice in each case V-shaped, wherein arise between the V-shaped edge regions and the U-shaped edge profiles laterally open areas where cutting edges of the facade elements forming sheet metal blanks are freely visible.

From the DE 92 05 534 U1 Are known from molded sheet cassette parts of a facade cladding, which have two times executed at right angles Randumkantungen, which can be included in sliding clamp holder of holding members of a support structure. In addition, the edge edgings are fixed on the carrier profile by means of securing screws.

From the EP 1 247 919 B1 are generally flat running diamond-shaped shingles for roof or facade coverings known, which have edge strips on their four longitudinal sides, which are each crimped to form a fold by nearly 180 ° to the front or rear. These shingles have no lateral faces in their flat construction.

From the DE 29 30 043 A1 Are made of sheet metal facade elements for facade cladding of residential buildings known that are similar to the cladding elements of the type mentioned. You have a here rectangular shaped central part with a flat surface, at the edge regions are each single or double bent edge strips. In this case, two opposing edge strips are doubly bent in the shape of a V, the tips of which point in the same direction each upwards, the upper edge strip having two executed in the same direction bends. The lateral edge strips of the longitudinal edges are each bent by 90 ° to the rear, with an edge strip formed by two more bends a forward open U-profile. Here too, laterally open regions are formed between the upper V-shaped edge region and the lateral edge strips, on which cut edges of the sheet metal blank are exposed and visible. For installation, the facade elements are hung in a U-shaped support and fastened in each case with a screw or rivet.

A cladding element of the type mentioned is further from the WO 2006/136918 A2 known. In this case, the four adjacent to the rectangular central part of the edge strips are each bent at least twice, either by 180 ° or by 60 ° in different directions. In this case, all four such reshaped edge strips on exposed cut edges.

Exposed cutting edges of the sheet metal blanks forming a cladding element not only disturb the appearance of a cladding panel formed therefrom, but it may also precipitate rusty spots that lead to damage to the cladding elements and can cause rust spots by dripping on the surfaces of underlying cladding elements, which also adversely affects the appearance of the cladding.

Object of the present invention is therefore to provide a reasonably priced and structurally simple cladding element of the type mentioned, which has a minimum number of exposed cut edges and allows a visually appealing facade cladding.

This object is achieved by a cladding element 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 a first rearward towards the rear and directed towards the middle portion bending of at least two edge strips disposed on opposite edges of the middle part is carried out in each case by at least approximately 180 °, so that the adjoining the central portion this edge strip is bent over to the rear side of the middle part or runs parallel to the rear side of the middle part. The free end region of these at least two edge strips is bent away in each case in a second bend in the opposite direction from the back in such a way that it is offset at a distance from the center part bounding first bend inwardly at least approximately perpendicular to the back of the middle part, wherein he respectively at least one open towards the free edge recess, into which for a positive and / or non-positive mounting of the cladding element in each case a clamping element in an at least approximately perpendicular to the back of the central part extending direction can be inserted and positively and / or positively received therein.

Advantageously, these two opposing edge strips with the mounting recesses on the side of the middle part, which preferably has a rectangular shape. The recesses in the free end regions of the two edge strips can in particular each have at least one undercut into which a clamping element for mounting the trim element made in one piece from a sheet metal can engage positively and / or non-positively.

A significant advantage lies in the fact that the edge strips according to the invention bent in a structurally simple manner allow a visually appealing appearance, which is a big advantage especially for mounted on optical reasons facade cladding of buildings. At the same time, a particularly simple mounting option with a lying perpendicular to the surface of the middle part pressing. Furthermore, exposed or freely visible cut edges of the sheet metal blank are kept to a minimum due to the bending according to the invention, so that damage or staining due to rust can be avoided.

It is especially advantageous if at least the first bends of the edge strips delimiting the middle part are made relatively narrow. It is proposed that they are designed with an inner bending radius which is at most twice as large as the wall thickness of the edge strips. The distinctive bending lines thus obtained give the cladding element a particularly high quality appearance.

For the lower edge of the cladding element, it is particularly favorable if the second bend of a lower edge strip is made such that the free end region of this lower edge strip on the side facing the middle part enclosing the first bend forms an angle to the rear side of the middle part which is smaller than 90 ° is. Preferably, an acute angle between 75 ° and 45 ° is proposed. The middle part Limiting first bend can also be advantageously carried out here by 180 °, so that no front-exposed cutting edge is present.

It is furthermore particularly advantageous if the second bend of at least one edge strip located in an upper region of the cladding element is embodied such that the free end region of this upper edge strip runs at least approximately parallel to the outer surface of the middle part. Preferably, the first bend delimiting the middle part and the second bend of the upper marginal strip can each be executed by at least approximately 60 °. In the assembled state, the upper free end region of a cladding element can be covered by a downwardly protruding first bend of a lower edge strip of a cladding element mounted above it.

The length of the bent edge strips can be chosen freely. However, it is particularly favorable when at least the two opposing edge strips extend over a length which amounts to at least 80% of the length of the respective side of the middle part. The upper and lower edge strips advantageously extend over the entire width of the middle part of the cladding element.

According to a particularly preferred embodiment of the invention, it is proposed that on one or both sides laterally adjacent to the two opposing, each twice bent edge strips projections are that have a smaller width than the edge strips and bent over the backside only by 180 ° are.

In this case, the projections can advantageously be bent together with the edge strips, which adjoin the two opposite edge strips, at least along the first bend, resulting in an optically particularly appealing appearance of the cladding element in these areas.

It is also particularly advantageous if the recesses in the end regions of the two opposite each two bent edge strips each have two opposing lateral undercuts, in each of which a clamping portion of a compressible clamping element between the form-fitting and frictionally received for example by clipping assembly of the cladding element can be. In addition, for this purpose, the edges of the recesses may be chamfered for easier impressions.

Figur 1:

dreidimensionale Darstellung einer Ausführungsvariante eines erfindungsgemäßen Verkleidungselements;

Figur 1 a:

vergrößerte Darstellung der Einzelheit A aus Figur 1;

Figur 2:

Querschnitt durch das Verkleidungselement aus Figur 1;

Figur 2a:

vergrößerte Darstellung der Einzelheit B aus Figur 2;

Figur 2b:

vergrößerte Darstellung der Einzelheit C aus Figur 2;

Figur 3:

Längsschnitt durch das Verkleidungselement aus Figur 1;

Figur 3a:

vergrößerte Darstellung der Einzelheit D aus Figur 3;

Figur 4:

dreidimensionale Ansicht einer Fassadenverkleidung mit mehreren Verkleidungselementen gemäß Figur 1;

Figur 4a:

vergrößerte Darstellung der Einzelheit E aus Figur 4;

Figur 5:

Querschnitt durch die Fassadenverkleidung aus Figur 4;

Figur 5a:

vergrößerte Darstellung der Einzelheit F aus Figur 5; und

Figur 6:

Blechzuschnitt für das Verkleidungselement aus Figur 1 im unverformten Zustand.

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:

three-dimensional representation of a variant of a cladding element according to the invention;

FIG. 1 a:

enlarged view of the detail A from FIG. 1 ;

FIG. 2:

Cross section through the cladding element FIG. 1 ;

FIG. 2a:

enlarged view of detail B off FIG. 2 ;

FIG. 2b:

enlarged view of detail C from FIG. 2 ;

FIG. 3:

Longitudinal section through the cladding element FIG. 1 ;

FIG. 3a:

enlarged view of the detail D off FIG. 3 ;

FIG. 4:

three-dimensional view of a cladding with several cladding elements according to FIG. 1 ;

FIG. 4a

enlarged view of detail E off FIG. 4 ;

FIG. 5:

Cross section through the facade cladding FIG. 4 ;

FIG. 5a

enlarged view of the detail F off FIG. 5 ; and

FIG. 6:

Sheet metal blank for the cladding element FIG. 1 in the undeformed state.

The in the FIGS. 4 and 5 illustrated cladding comprises several each formed from a single sheet metal blank in the form of a cassette lining elements 1, each having a rectangular running center part 2 with an externally visible outer surface 3. All externally visible edges of these middle parts 2 are each executed by a first bend 4 of the adjoining edge strips 5a, 5b, 5c, so that no exposed cut edges of the sheet metal blank are visible from the outside. In particular, the first bend 4 of the underlying edge strip 5b, which is designed by 180 °, also prevents the formation of rust by settling on the outer surface 3 and dripping down precipitation.

According to the invention, all edge strips 5a, 5b and 5c of a cladding element 1 adjoining the middle part 2 are each bent twice in different directions. The first bend of all four edge strips 5a, 5b and 5c is directed towards the back 6 of the middle part 2, wherein the first bends 4 of the two lateral edge strips 5a and 5b of the lower edge strip are each performed by at least approximately 180 °, so that the two lateral Edge strip 5a abut the back 6 and the lower edge strip 5b at least approximately parallel to the back 6 runs. The first bend 4 of the upper edge strip 5c as well as the second bend 7 of the upper edge strip 5c bent only by about 60 °, so that the free End portion 8 c of the upper edge strip 5 c offset rearwardly parallel to the central part 2 extends.

Furthermore, according to the invention, the free end regions 8a of the two oppositely arranged lateral edge strips 5a are each bent away in a second bend 7 in the opposite direction by 90 ° from the rear side 6 of the middle part 2, so that the free end regions 8a are at least approximately perpendicular to the rear side 6 are aligned. In this case, the free end portions 8a of the two lateral edge strips 5a extend within the first bends 4 and thus offset parallel to the edges of the central part 2 inwards.

In the free end portions 8a of the two lateral edge strips 5a are each two open to the free edge 9a recesses 10 introduced, each with two opposing lateral undercuts 11, in which a per se known clamping element 12 for mounting the cladding element 1 each positive and non-positive is receivable. The clamping elements 12 may be mounted as separate mounting means on, for example, U-shaped support profiles 14 fastened vertically to a building wall 13 and hold the cladding elements 1 perpendicularly to the plane of the middle parts 2 by simply clipping on or pressing on. To simplify this Aufdrückens the edges of the recesses 10 are formed with inlet slopes 15.

In the mounted position, the free end portions 8c of the upper edge strips 5c of the cladding elements 1 are each covered by the lower edge strip 5b of a cladding element 1 mounted above, in which case the respective first bends 4 of a lower edge strip 5b and an upper edge strip 5c of two cladding elements mounted one above the other 1 at a small distance from each other ( FIG. 5a ). Free cut edges of the sheet metal blanks of the cladding elements 1 are not visible from the outside.

In FIG. 6 a flat sheet metal blank 16 is shown, from which by executing the four first bends 4 and the four second bends 7 in FIG. 1 shown cladding element 1 is formed. Clearly here are the rectangular central part 2 with the four adjacent thereto edge strips 5a, 5b and 5c and their free end portions 8a, 8b and 8c to recognize. In the free end portions 8a of the two lateral edge strips 5a, the recesses 10 are already introduced. Also can be seen here on both sides next to the two lateral edge strips 5a each have an extension 17, which has only a significantly smaller width than the edge strip 5a. Each extension 17 adjoins both a lateral edge strip 5a and the upper edge strip 5c or the lower edge strip 5b.

When forming the cladding element 1, the extensions 17 are first bent together with the respectively associated lateral edge strip 5a along the first bend 4 by 180 ° to the rear. Connecting the two adjacent to the lower edge strip 5b projections 17 are bent twice together with the lower edge strip 5b along the first bend 4 and second bend 7, whereas the two adjacent to the upper edge strip 5c projections 17 only once together with the upper edge strip 5c be bent along the first bend 4. This also results in the corner regions between the individual edge strips 5a, 5b and 5c each have a visually very appealing appearance of the cladding element. 1

The two lateral edge strips 5a and 5b of the lower edge strip form with their free end portions 8a and 8b, the lower and the lateral end faces of the cladding element 1, while the upper end face of the cladding element 1 through lying between the first bends 4 and the second bend 7 Area of the upper edge strip 5 c is formed.

Claims (8)

Cladding element (1) made of malleable material for a cladding of buildings (13),
comprising a central part (2) with a front outer surface (3) which can be mounted facing away from a building (13) and a rear side (6) which can be mounted facing the building (13),
wherein edge strips (5a, 5b, 5c) of the cladding element (1) adjoining the middle part (2) are bent in such a way that they form an end face of the cladding element (1) projecting at an angle from the rear side (6),
wherein all edge strips (5a, 5b, 5c) adjoining the central part (2) are each bent at least twice in different directions,
characterized,
in that a first bend (4) directed towards the rear side (6) and delimiting the middle part (2) of at least two edge strips (5a) arranged on opposite edges of the middle part (2) is in each case designed at least approximately 180 °, so that the adjacent to the central part (2) region of these edge strips (5a) on the back (6) of the central part (2) is bent or parallel to the back (6) of the central part (2),
and wherein the free end region (8a) of these at least two edge strips (5a) in a second bend (7) in the opposite direction is bent away from the rear side (6) such that it is at a distance from the first part bounding the middle part (2) Bend (4) is aligned at least approximately perpendicular to the back (6) of the central part (2)
and in each case at least one recess (10) which is open toward the free edge (9a) and into which a clamping element (12) can be introduced in a direction at least substantially perpendicular to the rear side of the middle part (2) for mounting the lining element (1) and positively and / or non-positively absorbable therein. Cladding element (1) according to claim 1, characterized in that at least the central part (2) bounding first bends (4) of the edge strips (5a, 5b, 5c) are designed with an inner bending radius which is at most twice as large as the wall thickness the edge strip (5a, 5b, 5c). Cladding element (1) according to claim 1 or 2, characterized in that the second bend (7) of at least one in a lower region of the cladding element (1) lying lower edge strip (5b) is designed such that the free end portion (8b) of this lower edge strip (5b) on the middle part (2) bounding the first bend 4 side facing an angle to the back (6) of the central part (2) which is smaller than 90 ° and preferably between 75 ° and 45 °. Cladding element (1) according to one of the preceding claims, characterized in that the second bend (7) of at least one lying in an upper region of the cladding element edge strip (5c) is designed such that the free end portion (8c) of this upper edge strip (5c ) extends at least approximately parallel to the outer surface (3) of the middle part (2). Cladding element (1) according to one of the preceding claims, characterized in that extend at least the two opposing edge strips (5a, 5b, 5c) over a length which is at least 80% of the length of the respective side of the central part (2). Cladding element (1) according to one of the preceding claims, characterized in that laterally next to the two opposite bent edge strips (5a) extensions (17) are located, which have a smaller width than the edge strips (5a) and only by 180 ° are bent back towards the back (6). Cladding element (1) according to claim 6, characterized in that the extensions (17) are bent together with the edge strips (5b, 5c) which adjoin the two opposite edge strips (5a). Cladding element (1) according to one of the preceding claims, characterized in that the recesses (10) in the free end regions (8a) of the two respectively bent double edge strips (5a) each have two opposing undercuts (11), in each of which a clamping area a clamping element (12) for mounting the cladding element (1), in particular by clipping, positively and non-positively absorbable.

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