DK2586954T3 - Fastener for facade elements - Google Patents

Description

The invention is a device for attaching facade components, particularly to a building facade, where a facade component, such as a glass panel, is fastened to a frame.

An attachment device known from WO 2010/139465 where, to reinforce the L-shaped cross-section of a thermal barrier, the leg of the thermal barrier adjacent to the front of the facade component is widened or thickened by skewing it at the base or at the transition to the arm attached to the metal frame. EP 0 652 335 A1 describes a facade construction where the securing brackets lie between the front of the facade component and a web profile which is employed between adjacent facade panels in a support profile. The securing bracket may engage with the web profile at its inward-directed end by a ratchet curtain in a holding pin or comprise a ratchet hook which engages with a recess in the web profile. FR 2 719 089 A1 shows a connecting component between adjacent panels where a clip engages in grooves in a support profile and a leg straddles the front of the adjacent panels. EP 1 186 723 A2 describes a holder in the form of an angled panel strip, one leg of which straddles the front of a facade component and with the opposite end engaged in holding grooves in an insulating profile set in a support profile. DE 299 03 658 U1 describes a device for holding panels of glass in a facade where holders with ratchet tongues engage with an insulating section and a leg of the holders straddles the front of the facade panels. GB 2 228 964 A describes an angled connecting component 39 at the corner of a window pane each of the free ends of which has a clip component 38 which is connected to a window frame 3, where sections 44 of clip components 38 straddle the front of window pane 20.

By means of the invention, a secure holding of a facade component to a frame is provided.

This is achieved by the invention in that the holding brackets being fastened by a connecting bracket to two adjacent sides in the corner area of a facade component to improve the stability of the mounting.

According to the invention an attachment or fitting device for panel-shaped fascia or facade components comprises on a frame a holding clip, one leg of which straddles the front of the facade component and one leg at an angle to it, engaging with the frame or a part of the frame. This holding bracket absorbs at least a significant part of the forces arising at the facade component, acting at right angles to the facade component.

In an embodiment with a thermal barrier or a component reducing thermal conduction which extends crosswise to the facade component and is attached to a metal frame, a load-absorbing holding bracket is provided on at least two sides of the facade component between the metal frame and the outside of the facade component which at least partially reduce the stress on the thermal barrier straddling the front of the facade component.

The holding bracket is preferably manufactured from a spring plate which may be of a certain width and which results in pre-stress through flexures or arched sections if the holding bracket deforms elastically when inserted into the fitting device.

It is advantageous if the inner end of the holding bracket engages in a recess or holding groove in the frame or a component of the frame, where multiple holding grooves are preferably spaced closely apart to adjust the tension and equalise the tolerances.

In a suitable embodiment, the holding brackets are provided on their inside legs with preferably moulded on holding lugs or an angled edge section to engage with a holding groove. Such holding lugs or engagement sections may also be attached by being spot-welded to the holding bracket.

It is advantageous if an adhesive layer, adhesive strip and/or thermal insulation layer is positioned between the leg of the holding bracket straddling the front of the facade component and the surface of the facade component to help fix the holding bracket to the facade component and to reduce the heat it conducts to the frame.

The facade component may also be connected to the frame by means of an adhesive layer to increase the fixing power further. Here, the facade component is preferably glued with a strip, engaging through the recess of a corresponding groove in the metal frame of the T-shaped cross-section.

To absorb the forces arising in the plane of the facade component and the weight of the facade component more efficiently, holding brackets are placed at an angle to one another at one or more corners of a facade component made with corners connected permanently to one another by a connecting component.This connecting component may easily be made from a panel strip which is, for example, spot-welded to both holding brackets. But two holding brackets can also be formed from spring steel panel at an angle to one another in a corner, forming a connecting section between the two holding brackets.

When designing an inside facade where the panel-shaped facade components abut on opposing sides of a frame, the two panel-shaped components are held to the frame by holding brackets, one leg of which for example, engages in holding grooves in the frame, while the angled leg of the holding brackets straddles the front of the panel component.

To connect adjacent frames, an anchor element may be provided, approximately U-shaped in cross section, which engages with the outer legs, with a projection in each frame to hold the two frames together, where holding grooves may be provided on the inside of these outer legs for the holding brackets to engage in. A central leg may also be positioned on the anchor element between the outer legs on which the holding brackets engage with the anchor element are supported when engaging with the holding grooves, thus securing the engagement of the holding brackets. This anchor element may also be designed as a U-shaped cross-section, where the holding grooves are formed on one side of a leg, and the opposite leg serves to support the holding bracket engaging in the U-shaped anchor element. This U-shaped anchor element may either be moulded to the frame or connected to the frame.

Examples of embodiments are explained in more detail in the figures below, which show:

Fig. 1 A cross-section through the holding device or fitting device with a thermal barrier, metal frame and holding bracket;

Fig. 2 A perspective view of a holding bracket;

Fig. 3 A modified cross-section form of the holding bracket;

Fig. 4 A perspective view of a further embodiment of the holding device; Fig. 5 A further embodiment of a holding device;

Fig. 6 A cross-section view of Fig. 1 with a modified embodiment of the thermal barrier;

Fig. 7 A further embodiment viewed as in Fig. 6;

Fig. 8+9 Further modified embodiments;

Fig. 10 Views of a holding bracket;

Fig. 11 A view of a corner-connecting component between two holding brackets;

Fig. 12 Embodiments of a corner-connecting component; and

Fig. 13 A connecting device between adjacent facade components.

Figs. 11 and 12 show embodiments of the invention; the other figures serve to make the application easier to understand.

Fig. 1 shows a cross-section of a metal frame 2 attached, for example, to a building facade (not shown) through anchor elements to which a panelshaped facade component 1 is held by a holding device with inserted seals 3 and 4, a component 5, which reduces heat conduction in this first embodiment, hereafter referred to as thermal barrier 5, and a holding bracket.

Thermal barrier 5, which is preferably made of plastic, has a leg 5.1 running crosswise to the plane of facade component 1 which is attached to metal frame 2 and a leg 5.2 projecting into the plane of the facade component straddling the front of facade component 1. Thermal barrier 5 may have one of the cross-section shapes shown in WO 2010/139465..

The suspension of metal frame 2 on a facade may have the structure described in WO 2010/139465, and thermal barrier 5 which, in the embodiment shown, is connected to metal frame 2 by a flush-mounted bolt 70.

On metal frame 2, a leg 2.1 is formed perpendicularly to the plane of facade section 1 which, on the side of its face, has a groove 2.1a to take mounting bolt 70, to which a hollow chamber 2..1b is connected in the area of which a groove 2.1c may be made on the outside of the frame which can serve to receive a seal component. There is an attachment piece 2.2 on frame 2 approximately parallel to leg 2.1, projecting in the direction of 'facade component 1, which is a shorter version of leg 2.1 and which has a groove on its face to receive seal 3. In the groove between leg 2..1 and attachment piece 2.2 on one side, particularly at the site of attachment piece 2.2, there are a number of consecutive holding ribs 2.3 positioned between corresponding grooves, with which a holding lug or latch 6.3 engages which is the spring steel holding bracket 6 in the embodiment shown in Fig. 1.

Holding bracket 6 has a basically L-shaped cross-section and a leg 6.1 which extends beyond the thickness dimension of facade component 1, where an angled Leg 6.2 is positioned at the front end, extending towards the plane of facade component 1 and straddling its front side.

For the preferably-metal holding bracket 6 to engage with metal frame 2, metal frame 2 is provided with at least one holding rib 2.3. Preferably-multiple closely-spaced holding ribs 2.3 are provided such that when bracket 6 engages, there is a certain adjustment range for pre-stressing bracket 6. Multiple holding ribs 2.3 may also be used to compensate for tolerances in the thickness of facade component 1.

Holding bracket 6 consists preferably of spring steel, such that the engaging space to take bracket 6 may be kept small, as shown in Fig. 1. Bracket 6 may also be made of another rigid material, with a high tensile strength and a certain elasticity, which serves to reduce the stress on thermal barrier 5.

In the embodiment shown in Fig. 1, holding bracket 6 has a shallow U-shaped cross-section with leg 6.2 and holding lug 6.3 which form the second leg in the view in Fig. 1.

Holding bracket 6 is preferably made as a spring component. In the embodiment shown in Fig. 1, the central section and/or leg 6.1, of the holding bracket 6 is bowed slightly to produce pre-stressing between projecting legs 6.2 and 6.3, so the arched section of holding bracket 6 can rest on leg 2.1 of metal frame 2. Leg 2.1 also serves to ensure that bracket 6 engages with attachment piece 2..2..

Holding lugs 6.3 are springs designed so that when they deform elastically, they can be pressed into the groove between leg 2.1 and attachment piece 2.2 until they latch onto one of the holding ribs.

The anchoring of holding bracket 6 to metal frame 2 can be realized in different ways. For example, the holding ribs may also be made on the inside of leg 2.1, where the holding bracket has the approximately Z-shaped cross section shown in Fig. 3. In this design, the engagement area of bracket 6 is supported through attachment piece 2.2 of frame 2.

Through the further variation shown in Fig. 4, holding grooves and/or holding ribs may be made on opposite sides of the groove between leg 2.1 and attachment piece 2.2, in which latches or legs 6.3 1 on both sides of the engaging section for holding bracket 6 can be elastically deformed and pressed into the groove in metal frame 2.

Leg 6.2 of holding bracket 6 may be positioned right on the outside of facade component 1; but it is also possible to provide a preferably thermally-insulating intermediate layer between facade component 1 and leg 6.2 of the holding bracket. In particular, an adhesive strip (not shown) may be positioned between leg 6.2 and the glass surface.

Between facade component 1 and metal frame 2, thermal stresses, wind loads and/or impact loads from internally generated forces on the facade component, which can largely be absorbed by bracket 6 and which only act on thermal barrier 5 to a minor extent. This is largely alleviated by holding bracket 6.

The fact that Leg 6.2 of holding bracket 6 which straddles facade component 1 is covered by seal 4 on the one hand and the projecting leg 5.1 of Thermal barrier 5 on the other side, which means that holding bracket 6 does not conduct heat significantly between the outside of facade component 1 and metal frame 2.. There is also the fact that holding brackets 6 can only be provided at intervals on the circumference of facade component 1.

Holding bracket 6, as shown in Fig. 2 may be approx. 10 to 60 mm wide (Dimension B), for example, but may also have another width B, depending on the requirements in each case. Holding lugs 6.3 may be formed at intervals by deforming section 6.1, as shown in Fig. 2; but the inside end of holding bracket 6 may also have an angled edge 6.3' which engages with the holding grooves. An angled holding edge 6.3' may, in addition, be subdivided into sections, as Fig. 4 shows..

Fig. 4 shows a further embodiment where the sections of the inner end of holding bracket 6 are angled alternately in opposite directions.

Bracket 6, as shown in Figs. 2 and 4, may also be made approximately trapezoidal in shape, such that the end provided with holding lugs 6.3 and/or a holding edge 6.3' is already created as leg 6.2, straddling the front of facade component 1.

In a further embodiment, a holding bracket may be made as a strip extending over a large part or more of the lengthways dimension of facade component 1, where it may be subdivided into springing or resilient - but connected - sections.

In the embodiment shown in Fig. 1, attachment piece 2.2 has a hollow chamber 2.2a which extends in angled form into the front lateral section of metal frame 2. At the left end of hollow chamber 2.2a in Fig. 1, a groove 2.4 is made, which serves to receive a screw. Opposite this groove, on the outside of metal frame 2, a groove 2 5 is made in which a seal can be inserted; the rest of the structure for metal frame 2 is such as shown in WO 2010/139465.

Fig. 5 represents an embodiment of an attachment device in which facade component 1 is glued to metal frame 2 and thermal barrier 50 and is essentially made in the shape of leg 5.1 in Fig. 1, and without projecting leg 5.2 in Fig 1.

Facade component 1, particularly glass pane 1, is attached via adhesive layer 60 to strip 61, which is inserted through T-section cross-shape attachment piece 61.1 in T-shaped cross-section groove 2.6 in metal frame 2 where seal 3 in Fig. 1 is inserted.

In this particular embodiment, a seal component is arranged between adhesive layer 60 and holding bracket 6 which can, for example be made of elastic material. Instead of this seal component, seal 3 in Fig. 1 has a lip at 3a covering the space between attachment piece 2.1 of frame 2 and panelshaped facade component 1.

The cross-section form of thermal barrier 50 in Fig. 5 corresponds essentially to that of leg 5.1 of thermal barrier 5 in Fig 1, where a T-shaped cross-section groove 50.1 is made in the front of this leg in which cover strip 80 which is at least elastic on opposite legs 80.2 and 80.3 and is used with an approximately T-shaped cross section 80.1 which preferably has a hollow chamber.

This approximately L-shaped cross section 80 straddles front face of leg 6.2 of holding chamber 6 which is preferably attached to the front of facade section 1 using an adhesive layer. This adhesive layer is preferably thermally insulated such that holding bracket 6 is both covered against absorbing heat from outside through the adhesive layer between facade component 1 and Leg 6.2 and through leg 80.2 of cover strip 80. This leg 80.2 narrows towards its free end, so the outer front of the attachment device is largely smooth.

On the opposite side, cover strip 80 has a sealing lip 80.3 projecting inwards into the gap between adjacent thermal barriers 50 and 50', positioned against opposite sealing lip 80.3', to cover the gap between the externally adjacent thermal barriers 50 and 50'.

In the embodiment, as in Fig. 5, holding bracket 6, in conjunction with adhesive layer 60, is responsible for holding facade component 1 fixed to metal frame 2, such that the strain is removed from thermal barrier 50, and it can be used exclusively for carrying sealing/cover strip 80..

Fig. 6 shows a derived embodiment where cover strip 80a attached to the front end of thermal strip 50 has an approximately L-shaped cross-section, as in Fig. 5, where the inside has strip-shaped Steps 80.1a and 80.1b on both legs.

In this particular embodiment, thermal barrier 500 is made narrower than in the embodiment in Fig. 5. Adjacent to the centre section with three hollow chambers in succession, a section 502 of the thermal barrier extends at right angles to the plane of facade component 1, making an approximately T-shaped cross-section strip 503 to the side of section 502, which engages with a groove made on the side of a continuation 21 on the side of metal frame 2, projecting at right angles to the plane of facade component in Frame 2, and acts as abutment/support surface for holding bracket 6.

As holding bracket 6 fully relieves the stress on the thermal barrier in Fig. 6, the thermal barrier itself can be designed with thinner walls to provide better insulation.

The embodiment, as shown in Fig.. 6, also has a groove 501 on the side of the front end of thermal barrier 500, engaged by strip-shaped attachment piece 80.1 b for seal/cover strip 80a.

The embodiment, as shown in Fig. 6, has a seal 3, as in the embodiment in Fig. 1 between metal frame 2 and facade component 1. Fig.. 7 shows an embodiment where cover strip 80a and thermal barrier 500 are designed as per Fig. 6, but an adhesive layer is provided between metal frame 2 and facade component 1 to hold facade component 1, as per Fig. 5. In the embodiment, as in Fig. 7, seal component 63' has a round cross-section, as opposed to the rectangular cross-section of seal component 63 in Fig. 5..

Fig.. 8 shows a further modified embodiment where, close to the inner end of thermal barrier 500, as per Figs. 6 and 7, as opposed to hollow chamber 504 in Figs. 6 and 7, there is a groove 505 in which a sealing lip 90 engages, which combines with a sealing lip 90' on the opposing thermal barrier 500' to seal the gap between adjacent thermal barriers.

Furthermore, in the embodiment, as in Fig. 8, strip 51, shown in Fig. 5, has a continuation 61.2 which serves to hold seal 9 and covers adhesive layer 60 and a leg positioned on the inside of facade component 1..

Fig. 9 shows an embodiment of the thermal barrier which corresponds largely to that shown in Fig. 8 where the inside end of thermal barrier 500 straddles a T-shaped cross-section attachment piece 22 of metal frame 2 via two laterally-projecting hook-shaped strips 506, such that thermal barrier 500 is thus connected to metal frame 2 via a lateral engagement. Here, the continuation and/or section 21 of metal frame 2 is shown to be shorter than in the embodiment in Fig. 6. The inner end of thermal barrier 500 (Fig. 9) lies on the face end of continuation 21 of metal frame 2 as a recess, as shown in Fig. 8 whereas, in the embodiment shown in Fig. 6, the longer end of continuation 21 for metal frame 2 engages with a stepped face with a stepped counterface for thermal barrier 500.

As the various embodiments in Figs. 5 to 9 show, individual features of one embodiment may also be provided in other embodiments such that the embodiment shown in each case is not limited to the combination of features shown.

Fig. 9 shows a seal 91 inserted in a side cross-groove in metal frame 2, which extends across the gap between adjacent metal frames 2 and 2' into the opposing groove of metal frame 2'. A strip-shaped spring 93 also engages in side cross-grooves in the inside end of adjacent metal frames 2 and 2' with elastic female parts 14 at the opposing ends.

In a front view in Fig. 10a and a side view in Fig. 10b, Fig. 10 shows a holding bracket 6, according to a practical embodiment which basically corresponds to the embodiment shown in diagram form in Fig. 2 where the same reference codes are used for the corresponding sections of holding bracket 6. Holding bracket 6 in Fig. 10b is approx. 60 mm wide and around 65 mm long. Holding lugs 6.3 punched out of the spring plate in holding bracket 6 are preferably around 5 mm wide. The spring plate is 0.5 to 1 mm, preferably 0.6 mm thick.

In a view of the back of facade component 1, Fig. 11 shows two holding brackets 6 on adjacent sides in the corner area, the seal components and the like being omitted to simplify the presentation. These two holding brackets 6 positioned in the corner area, at an angle of 90° to one another, are interconnected through connecting component 7 which, in this embodiment, is made from a panel strip. Fig. 12a shows a perspective view without facade component 1.

Connecting component 7 has a trapezoidal central section 7.1 from the angled side surfaces of which wing sections 7.2 and 7.2' extend at an angle to one another which abut onto leg 6.1 of both holding brackets 6 and are connected to holding brackets 6 by spot welds 7.3 as shown in Fig. 12.

Connecting component 7 may also be designed differently. The embodiment in Fig. 12a shows a connecting component 7a and/or corner connecting piece formed on adjacent holding brackets 6, which is made of a spring plate to two holding brackets with connecting component 7a between them.

In a further embodiment, in a rectangular facade component 1, holding brackets 6 approx. 60 mm wide are arranged around 130 to 450 mm apart, where the holding brackets 6 may be distributed evenly along the sides of facade component 1.

Fig.. 13 shows a cross-section through the connecting device between facade components 1.1 and 1.1' of an inner facade as used in certain facade structures..

In this embodiment, a facade component is formed by two panel-shaped components 100, particularly glass panels, arranged on either side of a frame 200.

The reference numeral 200 designates a frame preferably of metal of approximately U-shaped cross-section where a panel component 100 lies on the outside of the two legs 201 in each case. Leg 201 of frame 200 and panel component 100 have a preferably flat-shaped seal 300 arranged between them in each case. An adhesive layer may also be provided at this point similar to the adhesive layer in Figs. 5 or 8.

Anchor elements 400 are arranged between frames 200 and 200' of adjacent facade components 1.1 and 1.1'. Fig. 13a shows a cross-section of a tie component 400 which has an approximately U-shaped basic shape with two outer legs 401 and 401' on a step section 402, from the centre of which a central leg 403 extends parallel to the outer legs which are longer than the outer legs. The inside of outer legs 401 have holding grooves 404 made on them running at an angle to the legs. The free ends 401a of outer legs 401 are angled inwards.

With the angled ends 401a, anchor element 400 engages behind an angled projection 202 on frame 200 such that adjacent frames 200 and 200' in Fig. 13 are held together by the two tie components 400, where the two anchor elements 400 are arranged symmetrically relative to the centreline of facade components 1.1 Anchor elements 400 thus form part of frame 200 and/or a connecting component between the frames..

To hold panel-shaped components 100 to frame 200, a holding bracket 600 is provided in each case, an angled end section 601 of which straddles the front of panel section 100 and has holding latches or lugs 603, preferably angled, close to the inner end of leg 602 which engage in the manner of a counter-hook in one of the angled holding grooves 404.. In the view in Fig. 13, holding brackets 600 are basically L-shaped and consist of spring steel plate, where they may be designed as shown in Fig.. 10.

Centre step 403 of anchor element 400 serves on the one hand as a spacer between adjacent holding brackets 600 on the one hand and as a mating surface to support a holding bracket 600 on the other hand which lies opposite holding grooves 400 and keeps holding lugs 603 engaged with holding grooves 404.

Anchor element 400 may be designed as a strip which extends along the side of a panel component 100; but it is also possible to hold anchor elements 400 in sections between adjacent frames 200 and 200', where such an anchor element 400 may extend approximately across the width of a holding bracket 600.

The opposing step sections 402 of the anchor elements 400 arranged symmetrically to one another may have a preferably thermally insulating interim layer 700 provided between them.

The outsides of outer legs 401 lie on the outsides of frames 200 and 200', where anchor elements 400 also serves as a spacer between adjacent frames 200 and 200'.

Various modifications of the design as in Fig. 13 are also possible, where the features reproduced in connection with Figs. 1 to 12 may be used in the design as in Fig. 13.

The engagement of anchor element 400 with the respective frame 200 may also be shown designed otherwise than as shown in Fig. 13.

Anchor element 400 may also be made as a single part together with frame 200, at least on one side of a frame 200..

The connecting device shown in Fig. 13 may also be made separated in the centreline along centre steps 403 whereby adjacent frames 200 and 200' may be connected with one another by other means. In particular, if divided along centre steps 403, panel components 100 may be held to frame 200 at a facade component L1 connecting to a wall. In other words, in such a design, a wall is arranged on the left side of the lateral axis along the centre steps in 403 in Fig. 13 to which the face of facade component 11 is adjacent.

It is possible to make the holding grooves 404 straight onto frame 200. This embodiment also preferably has a cover for the holding grooves corresponding to centre step 400 which the holding bracket can rest on when it engages with the holding grooves. A design as in Fig. 13 may also be used as a partition wall.

As Fig. 10b also shows holding brackets 6/600 running at right angles to the facade component may be somewhat bent such that holding lugs 6.3 are pressed outwards (shifted left in Fig. 10 b) against this bend and/or curved if they are put in the holding grooves where they are pre-stressed by the somewhat flattened bend at 6.4 in Fig. 10.

With a longer holding bracket Fig. 10, a bend 6.5 is positioned in the vicinity of section 6.2, straddling the front, thus making centre section 6.1, between section 6.2, and holding lug 6.3, slightly curved

The holding lug is also preferably bent slightly at 6.6, close to holding lug 6.3, whereby the engaging section of the holding bracket can more easily deform elastically to engage and promote pre-stressing of the holding bracket once it has engaged.

Holding lugs 6.3, made by punching and bending from spring steel plate, are positioned at a distance from the free end of the holding bracket to ensure holding lugs 6.3 are sufficiently strong.

The shorter holding bracket 600, as shown in Fig. 13, is bent between holding lugs 603 and leg 602, corresponding to bend 6.4 in Fig. 10.

Claims (13)

A fastener comprising - a rectangular plate-shaped facade element (1, 100), - a frame (2, 200) against which the facade element is attached, and - retaining clips (6, 600), as with a first leg (6.2, 602) engages over the front side of the facade element (1, 100) and with a second leg (6.1, 601), which is at an angle relative thereto, engages the frame (2, 200) or a frame part, - where retaining clips (6 , 600), which are disposed at an angle to each other, are connected to each other by means of a connecting element (7) at at least one corner of the facade element (1, 100), characterized in that this connecting element has a trapezoidal middle section (7.1 , 7a), which engages over the front side of the facade element (1, 100), and from which its angled side surfaces extend angular wing sections (7.2), which are connected to the second leg (6.1) of the neighboring holding clamps (6,600) . A fastening device according to claim 1, with a metal frame (2) arranged on the back of the facade element (1) and an element (5) which reduces the heat conduction and which extends across the plane of the facade element and is fixed to the metal frame (2), wherein the holding clamps (6) receiving load are arranged between metal frame (2) and an outside side of the facade element (1) on at least two sides of the facade element (1). A fastening device according to claim 1 or 2, wherein the retaining clips (6, 600) are made of a spring plate and the connecting element (7) is made of a plate strip connected to the two retaining clips (6, 600). A fastening device according to any one of the preceding claims, wherein the inner end of the retaining clamps (6, 600) engages a ledge or in a holding groove (2.3, 404) on the frame (2) or a frame element (200). A fastening device according to claim 4, wherein several holding grooves (2.3, 404) are formed one after the other at small distances. A fastening device according to any one of the preceding claims, wherein the retaining clip (6, 600) on the internally located leg (6.1,601) has retaining nozzles (6.3, 603) or an angled edge section (6.3 ') for engagement in a retaining groove (2.3) . A fastening device according to any one of the preceding claims, wherein between the leg (6.2, 602) of the retaining clip (6), which engages over the front side of the facade element and the surface of the facade element (1, 100) is arranged an adhesive layer, an adhesive tape and / or a heat insulating layer. A fastening device according to any one of the preceding claims, wherein the engaging portion of the retaining clip (6, 600) is held on the frame (2, 200) by means of a support surface which is opposite the engaging ledge or support grooves (2.3, 404). A fastening device according to any one of the preceding claims, wherein the holding clamp (6, 600) made of a spring steel plate has at least one crack or bend (6.4, 6.5, 6.6) on the middle section (6.1,601). A fastening device according to claim 1, wherein a cross section approx. U-shaped anchor element (400) is arranged on the outer side of the frame (200) for engaging one leg of the clamp, and on either side of the frame (200), respectively, a plate-shaped element (100) is held by means of clamps (600). ). A fastening device according to claim 10, wherein the anchor element between outer legs (404) has a middle leg (403) on which retaining clips (600) engaging the anchor element (400) rest, and the outer legs (404) grip behind a projection (202) on the frame (200) for holding together the adjacent frames (200, 200 '). A fastening device according to claim 1, wherein the connecting element (7) is connected to the neighboring holding clips (6) by spot welding (7.3). A fastening device according to claim 1, wherein the connecting element (7, 7a) is formed on adjacent holding clips (6) and of a spring plate is formed into two holding clips (6) with a connecting section (7a) lying therebetween.