EP0652335A1 - Façade construction - Google Patents

Abstract

The invention relates to a facade construction having at least one load-bearing profile (1) and at least one facade element mounted in a sealing manner on the load-bearing profile (1), and in particular in the form of a glass element (5a,b), provision being made, in order to mount the facade element, for an essentially double-T-shaped, elastic connection profile (33) which is fastened on one side of the load-bearing profile (1) and comprises a room-side glazing profile (2), an outer glazing profile (4) and a web profile (3) which connects the two glazing profiles (2, 4) to one another, the facade element being retained between the two glazing profiles (2, 4) at the border. In the case of such a facade construction, the glass or facade elements are secured against falling out in that additional provision is made in the connection profile (33), at predetermined locations thereof, for individual securing elements which retain the facade element on the load-bearing profile (1) even if the outer glazing profile (4) cannot exert its retaining function or cannot exert said function sufficiently. <IMAGE>

Description

TECHNICAL AREA

The present invention relates to the field of civil engineering. It relates to a facade construction with at least one supporting profile and at least one facade element sealingly mounted on the supporting profile, in particular in the form of a glass element, an essentially double-T-shaped, elastic connecting profile attached to the supporting profile being provided for mounting the facade element, which Connection profile comprises a glazing profile on the room side, an outer glazing profile and a web profile connecting the two glazing profiles, the facade element being held on the edge between the two glazing profiles.

Such a facade construction is e.g. known from German Patent DE-C2-29 30 059.

STATE OF THE ART

In the case of large-scale facades of modern large buildings, there is an increasing shift to a flexible construction consisting of a few standard components, which can be easily adapted to different building conditions, can meet different architectural requirements and enables the realization of highly insulating exterior walls. Such a construction, as in the publication mentioned at the beginning is shown, is based on a lattice-like structure of support profiles on which individual facade elements, in particular plates or glass elements, are sealed.

The type of storage can be explained using the example from the prior art shown in FIG. 1: A (shown in cross section) U-shaped support profile 1 (made of aluminum or steel) has two legs la and lb, which at their ends are bent inward at two right angles and form a receptacle for an elastic connecting profile 33 between them. The connecting profile 33, which consists of a rubber or an elastomer, essentially comprises a glazing profile 2 on the room side, an outer glazing profile 4 parallel to it, and a web profile 3, which connects the two glazing profiles 2 and 4 to one another.

If the connecting profile 33 is used between two abutting glass elements 5a, b (or facade panels), each of the two glazing profiles 2 and 4 contains two sealing strips running in parallel. The glass elements 5a, b are held in a sealing manner on the edge between the pair of opposing sealing strips, the web profile 3 running in an intermediate space 6 between the two glass elements 5a, b. The connecting profile 33 is in turn inserted or snapped into the receptacle in the supporting profile 1 with a correspondingly shaped extension 9.

So that the glass elements 5a, b can be inserted into the tightly fitting connection profile 33 during assembly, the connection profile 33 must be designed in a special way in order to enable the glass elements 5a, b to be introduced into the connection profile 33 largely without hindrance:

In the construction known from DE-C2-29 30 059, in which the connecting profile is formed essentially in one piece grooves are provided in the outer glazing profile in the area of the sealing strips, which grooves can accommodate shape-matched closure profiles (26 in FIG. 1 there). During assembly, the sealing profiles are not yet pushed into the grooves, so that the sealing strips can be bent outwards slightly to make room for the glass elements. After inserting the glass elements, the grooves are filled with the sealing profiles so that the sealing strips are pressed firmly against the outside of the glass elements and fix them.

In the construction shown in FIG. 1 of the present application, the outer glazing profile 4 is designed as a separate element, which is initially separated from the rest of the connecting profile and is only snapped into a corresponding latching groove 7 on the web profile 3 after the glass elements 5a, b have been inserted by means of a snap-in bar 8 or is inserted.

In the latter case in particular, there are situations during assembly (when the outer glazing profile is not yet in place) in which the glass elements used are not yet secured against falling out.

PRESENTATION OF THE INVENTION

It is an object of the invention to improve a facade construction of the type mentioned at the outset such that securing the glass or facade elements against falling out no longer depends exclusively on the correct function of the outer glazing profile.

In a facade construction of the type mentioned at the outset, the object is achieved in that, in order to secure the facade element in the connecting profile, additionally individual securing elements at predetermined points in the connecting profile are provided which hold the facade element on the support profile even when the outer glazing profile cannot or does not perform its holding function sufficiently. The securing elements can be designed independently of the actual connection profile and used flexibly in a wide variety of places. During assembly, they take on the holding function if the outer glazing profile is not yet ready for use. With the fully assembled facade, they create redundancy, which leads to increased security.

A first preferred embodiment of the facade construction according to the invention is characterized in that curved securing clips are provided as securing elements, which are inserted into an intermediate space between the edge of the facade element and the web profile, and with an outwardly directed, hook-shaped end under the outer glazing profile of the facade element, and are fastened with an inward end to the web profile or to the glazing profile on the room side. Such locking clips can be made from sheet metal and easily assembled. Since they are completely covered by the outer glazing profile, they do not change the appearance of the facade. In addition, they do not affect the air circulation within the space.

A second preferred embodiment of the facade construction according to the invention is characterized in that one-piece securing clips formed from plastic are provided as securing elements, which are inserted into a space between the edge of the facade element and the web profile, the securing clips each comprising a plate-shaped bracket body the outward end of which is integrally formed with a retaining element which projects substantially at right angles to one side, and on the other side at least one from the plane of the plate obliquely outwardly projecting snap hooks which are formed on the clamp body in an elastically pivotable manner are provided, and the securing clips with the holding element under the outer glazing profile engage around the edge of the facade element, and are fastened with the at least one snap hook on the web profile. Such a plastic securing clip is easy and inexpensive to manufacture, particularly insensitive to environmental influences and practically does not form a cold bridge.

A third preferred embodiment of the facade construction according to the invention is characterized in that bars are provided as securing elements, which extend through the interior of the connecting profile and are each positively connected with an inward end to the supporting profile, and at an outward end with a plate are connected, which plate rests on the outside on the outer glazing profile and reaches over the edge of the facade element. This embodiment is more complex to manufacture and assemble, but has the advantage that it can absorb particularly large forces and can direct it into the support profile. In particular, this can be used to provide security against burglary, which provides considerable resistance to the prying out of a glass or facade element from the outside.

Further embodiments result from the dependent claims.

BRIEF EXPLANATION OF THE FIGURES

Fig. 1

im Querschnitt eine Fassadenkonstruktion nach dem Stand der Technik mit separatem äusseren Verglasungsprofil;

Fig. 2

zwei Ausführungsbeispiele für die erfindungsgemässen zusätzlichen Sicherungselemente in Form von Sicherungsklammern in einer Fassadenkonstruktion nach Fig. 1 (Fig. 2a) sowie das nach innen gerichtete Ende der rechten Sicherungsklammer aus Fig. 2a (Fig. 2b);

Fig. 3

zwei weitere, zu Fig. 2 analoge Ausführungsbeispiele für Sicherungsklammern in einer Fassadenkonstruktion nach Fig. 1;

Fig. 4

die Sicherungsklammern gemäss Fig. 3 in einer Fassadenkonstruktion mit im wesentlichen einstückigen Verbindungsprofil;

Fig. 5

ein mit den linken Sicherungsklammern aus Fig. 3 bzw. Fig. 4 vergleichbares Ausführungsbeispiel für Sicherungsklammern in einer Fassadenkonstruktion mit dreiteiligem Verbindungsprofil;

Fig. 6

ein erstes Ausführungsbeispiel für ein erfindungsgemässes zusätzliches Sicherungselement in Form eines auf der Aussenseite verschraubten Stabes in einer zu Fig. 1 vergleichbaren Fassadenkonstruktion mit aussen abgeflachtem äusseren Verglasungsprofil;

Fig. 7

ein zu Fig. 6 analoges zweites Ausführungsbeispiel mit stabförmigem Sicherungselement, welches auf der Innenseite verschraubt ist und daher vor allem als Einbruchssicherung verwendet werden kann;

Fig. 8

ein zu Fig. 2 analoges Ausführungsbeispiel mit einer einstückigen Sicherungsklammer aus Kunststoff; und

Fig. 9

in Frontansicht (a), Seitenansicht (b) und im Schnitt entlang der Ebene A-A die Sicherungsklammer nach Fig. 8.

The invention will be explained in more detail below on the basis of exemplary embodiments in connection with the figures. Show it

Fig. 1

in cross section a facade construction according to the prior art with a separate outer glazing profile;

Fig. 2

two exemplary embodiments of the additional securing elements according to the invention in the form of securing clips in a facade construction according to FIG. 1 (FIG. 2a) and the inward end of the right securing clip from FIG. 2a (FIG. 2b);

Fig. 3

two further exemplary embodiments, analogous to FIG. 2, for securing clips in a facade construction according to FIG. 1;

Fig. 4

3 in a facade construction with an essentially one-piece connecting profile;

Fig. 5

an embodiment comparable to the left securing clips from FIG. 3 or FIG. 4 for securing clips in a facade construction with a three-part connecting profile;

Fig. 6

a first exemplary embodiment of an additional securing element according to the invention in the form of a rod screwed to the outside in a facade construction comparable to FIG. 1 with the outer glazing profile flattened on the outside;

Fig. 7

a second embodiment analogous to FIG. 6 with a rod-shaped security element which is screwed on the inside and can therefore be used above all as a burglar alarm;

Fig. 8

an analog to Figure 2 embodiment with a one-piece securing clip made of plastic. and

Fig. 9

in front view (a), side view (b) and in section along the plane AA, the securing clip according to FIG. 8.

WAYS OF CARRYING OUT THE INVENTION

2 shows two preferred exemplary embodiments for the additional securing elements according to the invention. The representation is based on the known facade construction according to FIG. 1, the structure of which has already been explained in detail above and comprises a two-part connection profile 33 consisting of the outer glazing profile 4 and the web profile 3 and room-side glazing profile 2. The connecting profile is preferably made of EPDM (ethylene-propylene rubber). Here, as securing elements (FIG. 2a), curved securing clips are provided in two variants 10 and 13, which can be made, for example, from a metal strip and differ only in the type of attachment at their inward end.

In the left embodiment, the associated securing clip 10 is equipped at its inward end with a snap hook 11 with which it can be latched into a corresponding recess 12 on the web profile 3. With the outward, hook-shaped bent end, the securing clip 10 grips under the outer glazing profile 4 the edge of the corresponding glass element 5a, so that - even if the outer glazing profile 4 is not in place, the glass element 5a is held at various points in the connecting profile 33 becomes. An S-shaped bend of the securing clip 10 in the middle area ensures that the glass element 5a maintains a certain distance from the web profile 3.

In the right-hand embodiment, the associated securing clip 13 is latched into place on its inward end with a snap-in link 36 (as shown in part in the side view in FIG. 2a) in a (for example metallic) holding pin 14, which holding pin 14 is in the web profile 3 in Transverse direction is embedded. The holding pin 14 not only ensures that the clamp fastening is securely anchored in the web profile, but can also be easily retrofitted into existing connecting profiles 33. It goes without saying that in FIG. 2 and in the further FIGS. 3 and 4 two different exemplary embodiments are shown on a connecting profile only for the sake of simplified reproduction, and that generally only one embodiment is continuous in the facade construction according to the invention is used.

Two further exemplary embodiments for securing elements in the form of securing clips are shown in FIG. 3, the facade construction from FIG. 1 again being used as a basis. In the left embodiment, the securing clip 15 is made so long that it can no longer be attached to the web profile 2, but further inside to the glazing profile on the room side. For this purpose, the inward end of the securing clip 15 is hook-shaped and can be inserted in a corresponding snap-in groove 17 on the glazing profile 2 on the room side. By anchoring the securing clip 15 in the glazing profile 2 on the room side, a securing of the glass element 5a is ensured, for example, even if the web profile 3 should tear off. In the right embodiment, the securing clip 16 is hook-shaped at its inward end in a somewhat different way. It can be hooked with the hook-shaped end on a projection 18, which is formed on the side of the web profile 3.

Although the additional securing elements according to the invention have only been shown and explained in connection with the structure from FIG. 1, it goes without saying that these elements can also be used in other structures. An example of this is shown in FIG. 4, where the same securing clips 15 and 16 from FIG. 3 are shown in connection with an essentially one-piece connecting profile 33, as is known from DE-C2-29 30 059 already mentioned at the beginning. In this facade construction, the outer glazing profile 4 is molded directly onto the web profile 3. So that the sealing strips of the outer glazing profile 4 can be bent inwards when the glass elements 5a, b are inserted, two grooves 19 are provided in the profile, which are filled after assembly with corresponding closure profiles 20 and thus stiffen the glazing profile. In this case too, the securing clips 15, 16 take on the desired securing tasks not only during assembly (if the closure profiles 20 have not yet been inserted), but also in the fully assembled state.

The securing clips are of particular importance if the connecting profile 33 consists of three parts, ie is composed of a glazing profile 2 on the room side, a web profile 3 and an external glazing profile 4, as shown in FIG. 5. In this exemplary embodiment, both glazing profiles 2 and 4 are connected to the web profile 3 by latching grooves 7, 23 and corresponding latching strips 8, 24. Although the securing clips could also be fastened here with their inward ends to the web profile 3, maximum security is achieved if the securing clips 21, 22 are attached directly to the glazing profile 2 on the room side, because both latching connections 7, 8 and 23, 24 in Connection profile 33 are secured. For this purpose - as in the left-hand exemplary embodiments from FIGS. 3 and 4 - the securing clips 21, 22 are hook-shaped at their inwardly directed end and into a corresponding one Locking groove 25, 26 can be hooked into place on the glazing profile 2 on the room side.

While curved metal clips were provided as securing elements in the exemplary embodiments shown in FIGS. 2 to 5, it is also conceivable and advantageous in terms of manufacture, durability and thermal properties to use securing clips made of a suitable plastic as securing elements. However, it must be taken into account here that the mechanical strength of plastic clips is usually lower than that of metal clips.

A preferred exemplary embodiment of a securing clip made of plastic is shown in FIG. 8 in a type of use analogous to FIG. 2a, left side. The securing clip 37 itself is shown in different views in FIG. 9. The securing clip 37 consists of a rectangular, plate-shaped clip body 38, on the end of which is formed a retaining strip 42 which projects essentially at right angles to one side. The holding strip 42 has a thickness which decreases from the clamp body 38 to the outside, so that it takes up little space under the outer glazing profile 4 with sufficient mechanical stability.

On the side of the clamp body 38 opposite the retaining strip, a plurality (in the exemplary embodiment four) of latching hooks 39, 39a-d protruding outwardly from the plate plane are provided. The snap-in hooks 39, 39a-d are integrally pivoted on the clamp body 38. In the unstressed state, they stand out from the plane of the plate at an angle of approximately 30 ° and pivot towards the plate body 38 when the securing clip 37 is inserted into the narrower space between the web profile 3 and the glass element 5a, b. So that this is possible without hindrance, the clamp body 38 is reduced in thickness below the snap-in hooks 39, 39a-d to such an extent that the resulting ones Wells the snap hooks 39, 39a-d largely accommodate when folded. Between the snap-in hooks 39a, b and 39c, d (FIG. 9a) there remains a raised web 40 which ensures the mechanical stability of the securing clip. With regard to the mechanical stability and in particular the bending stiffness, it is also favorable to provide further recesses 41 and 41a, b above the snap-in hooks 39, 39a-d in the area of the clamp body 38 adjoining the holding strip 42.

The individual snap-in hooks 39, 39a-d have the shape of a rectangular plate. The outer edge with which the hooks snap onto the web profile 3 is preferably made with sharp edges in order to facilitate the snap-in. This can be achieved, for example, by a suitable beveling of the edges. In order to enable a defined snap-in, snap-in grooves 43 are preferably provided on the web profile 3 at the corresponding point, into which the snap-in hooks 39, 39a-d can securely snap in with their sharp outer edges.

The plastic securing clip 37 described is only one possible exemplary embodiment. It goes without saying that the shape and arrangement of the holding strip 42 and the snap-in hooks 39, 39a-d can be varied within a wide range within the invention.

So far, securing clips have been described as securing elements, which are used after the glass elements have been installed, but before the outer glazing profile is finally installed. These securing clips have the particular advantage that they are easy to manufacture and assemble and that they are covered by the outer glazing profile after assembly. The securing elements, which are shown in two exemplary embodiments in FIGS. 6 and 7 and are to be explained below, are even more resilient.

In the embodiment shown in FIG. 6, securing elements (preferably solid) 28 are provided, which run through the interior of the connecting profile 33 and are each positively connected to the supporting profile 1 with an inward end, and at an outward end are connected to a plate 29. The plate 29 lies from the outside on the outer glazing profile 4 and reaches over the edge of the glass element 5a, b or facade element. The positive connection between the support profile 1 and the inward end of the rod 28 takes place via a U-shaped anchor 27, which is integrally connected to the rod 28, in particular welded, and is arranged in the interior of the support profile 1.

The outward end of the rod 28 is provided with a thread and screwed to the plate 29 by means of a nut 30. So that the plate 29 lies well, an outer glazing profile 4 is expediently used in this case, which is largely flat on the outside. Due to the solid design and the anchoring directly on the support profile 1, significantly increased security is achieved in this embodiment. In order to protect and visually hide the screw connection, a cover profile 31 is preferably provided on the outside over the outer glazing profile 4, which can be snapped on by means of clips (not shown).

Additional security against burglary is achieved with the exemplary embodiment from FIG. 7. Here, too, rods 35 are provided as securing elements, which run through the interior of the connecting profile 33 and are positively connected with an inward end to the supporting profile 1 and at an outward end to a plate 32, which plate from the outside the outer glazing profile 4 rests and reaches over the edge of the facade element.

In this case, however, to achieve the positive connection between the support profile 1 and the inward end of the rod 35, this end is provided with a thread and screwed to the support profile 1, while the outward end of the rod 35 is integrally connected to the plate 32 , in particular is welded. In this way, removal of the securing element from the outside is made considerably more difficult.

At this point, it should be pointed out that all of the illustrated and explained exemplary embodiments relate to facade constructions which, for example, were equipped with glass elements 5a, b in the form of highly insulating multiple glazing. Of course, single glazing, other insulating glazing or other plate-like facade elements can also be used instead. The length of the securing elements (like the connecting profiles) must then be adapted to the thickness of these elements.

Overall, the invention results in a facade construction which, by means of additional securing elements, ensures increased security against the facade elements falling out or being removed, the securing elements being easy to manufacture and to retrofit.

LIST OF DESIGNATIONS

1

Support profile

1a, b

Leg (support profile)

2nd

glazing profile on the room side

3rd

Web profile

4th

outer glazing profile

5a, b

Glass element

6

Space

7

Snap-in groove

8th

Snap bar

9

approach

10.13

Securing clip

11

Snap hook

12th

Recess

14

Retaining pin

15.16

Securing clip

17th

Snap-in groove (securing clip)

18th

head Start

19th

Groove

20th

Closure profile

21.22

Securing clip

23

Snap-in groove (glazing profile on the room side)

24th

Snap bar (glazing profile on the room side)

25.26

Snap-in groove (securing clip)

27

anchor

28.35

Rod

29

Plate (disc-shaped)

30.34

mother

31

Cover profile

32

Plate (disc-shaped)

33

Connection profile

36

Snap-in backdrop

37

Securing clip

38

Bracket body

39; 39a-d

Snap hook

40

web

41; 41a, b

deepening

42

Retaining bar

43

Engaging groove

Claims (14)

Facade construction with at least one support profile (1) and at least one facade element, sealingly mounted on the support profile (1), in particular in the form of a glass element (5a, b), with an essentially double T attached to the support profile (1) on one side for mounting the facade element Shaped, preferably elastic connecting profile (33) is provided, which connecting profile comprises a glazing profile (2) on the room side, an outer glazing profile (4) and a web profile (3) connecting the two glazing profiles (2, 4) to one another, with the facade element between the edges the two glazing profiles (2, 4) is held, characterized in that, in order to secure the facade element in the connecting profile (33) at individual locations of the connecting profile (33), individual securing elements are also provided, which then also secure the facade element to the supporting profile (1) hold when the outer glazing profile (4) its holding function cannot or cannot exercise sufficiently. Facade construction according to claim 1, characterized in that curved securing clips (10, 13; 15, 16; 21, 22) are provided as securing elements, which are inserted into an intermediate space (6) between the edge of the facade element and the web profile (3), and enclose the edge of the facade element with an outward, hook-shaped end under the outer glazing profile (4), and are fastened in a snap-in manner with an inward end to the web profile (3) or to the room-side glazing profile (2). Facade construction according to claim 2, characterized in that the securing clips (10) have a snap-in hook (11) at their inwardly directed end, with which they can be latched into a corresponding recess (12) on the web profile (3). Facade construction according to claim 2, characterized in that the securing clamps (13) can be latched into a retaining pin (14) at their inwardly directed end with a latching link (36), which retaining pin (14) is let into the web profile (3) in the transverse direction is. Facade construction according to claim 2, characterized in that the securing clips (15; 21, 22) are hook-shaped at their inwardly directed end and can be latched into a corresponding snap-in groove (17; 25, 26) on the room-side glazing profile (2). Facade construction according to claim 2, characterized in that the securing clips (16) are hook-shaped at their inwardly directed end and can be hooked with the hook-shaped end on a projection (18) which is formed laterally on the web profile (3). Facade construction according to claim 1, characterized in that one-piece securing clips (37) are provided as securing elements made of plastic, which are inserted into an intermediate space (6) between the edge of the facade element and the web profile (3). Facade construction according to Claim 7, characterized in that the securing clips (37) each comprise a plate-shaped clip body (38), on the outward end of which a retaining element (42) projecting essentially at right angles to one side is formed, and on the other side at least a protruding outwardly from the plane of the plate on the clamp body (38) an elastically pivotable snap-in hook (39; 39a-d) is provided, and that the securing clips (37) with the holding element (42) under the outer glazing profile (4) engage around the edge of the facade element, and with the at least one snap-in hook (39; 39a-d) are fastened in a snap-in manner on the web profile (3). Facade construction according to claim 8, characterized in that the holding element is designed as a holding strip (42) extending over the entire width of the clip body (38), and in that on the clip body (38) a plurality of snap-in hooks (39) running parallel to one another and / or to one another ; 39a-d) are arranged. Facade construction according to one of claims 8 and 9, characterized in that the latching hook (s) (39; 39a-d) have an essentially rectangular shape and are formed with sharp edges on their outward-facing edge. Facade construction according to claim 1, characterized in that bars (28, 35) are provided as securing elements, which extend through the interior of the connecting profile (33) and are each positively connected to the supporting profile (1) with an inward end, and on an outward end is connected to a plate (29, 32), which plate rests on the outside on the outer glazing profile (4) and extends over the edge of the facade element. Facade construction according to claim 11, characterized in that the positive connection between the support profile (1) and the inward end of the rod (28) takes place via a U-shaped anchor (27) which is integrally connected to the rod (28), in particular is welded, and is arranged inside the support profile (1), and that outward end of the rod (28) is threaded and screwed to the plate (29). Facade construction according to claim 11, characterized in that to achieve the positive connection between the support profile (1) and the inward end of the rod (35) this end is provided with a thread and screwed to the support profile (1), and that after outer end of the rod (35) is integrally connected to the plate (32), in particular is welded. Facade construction according to one of claims 1 to 13, characterized in that a cover profile (31) is provided over the outer glazing profile (4).

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