EP3137704A1

EP3137704A1 - Fastening system for building facades, and use thereof

Info

Publication number: EP3137704A1
Application number: EP15733606.6A
Authority: EP
Inventors: Michael Klein
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-22
Filing date: 2015-04-21
Publication date: 2017-03-08
Anticipated expiration: 2035-04-21
Also published as: EP3137704B1; DE102014005708A1; WO2015161838A1; WO2015161838A4

Abstract

The invention relates to an attachment fitting (1) and to a grid support (2) of a modular fastening system for building facade panels (9). The attachment fitting (1) has at least one connecting element (4) that can be connected to a connecting receptacle, the shape of which corresponds to the connection element (4), on the rear side of the facade panel (9). The height (H) of the attachment fitting is smaller than the modular vertical grid (M) of the façade system, wherein the attachment fitting (1) can be brought into engagement with the grid support (2) in a form-fitting manner, which grid support (2) has a regular longitudinal grid. The invention makes it possible to replace traditional rail systems, which have to be manufactured in a project-specific manner, with a modular system of attachment fittings (1) which are positioned on standardized grid supports (2) without additional fastening elements. Any facade layouts can be realized, including mixed grids and panel blanks, without the need for prefabrication of elements for the facade substructure, in particular project-specific support rails. Material savings and quality and safety improvements at the construction site are achieved, and existing rail-length restrictions no longer apply. The risk for the builder is reduced, since no project-related prefabrication of rail systems and no additional delivery of specific individual parts are required.

Description

FASTENING SYSTEM FOR BUILDING FACADES AND ITS USE

[Ol] The invention relates to a modular fastening system for facade panels for cladding building facades, comprising a fastening fitting and a raster carrier. [02] Fastening systems for cladding building facades by means of curtain wall panels are known from the prior art and in the market for façade systems. In such building facades are facade panels in various designs used, which are mostly based on ceramic, extruded or pultruded materials. The facade panels are usually performed rectangular and hung by means of appropriate fastening systems in a regular rectangular grid in front of the supporting structure of the outer building wall, usually a thermal insulation layer between the building wall and the facade panels is arranged. In this way, decorative, maintenance-friendly and durable building facades can be created relatively efficiently. At present, essentially two different systems for fastening the facade panels in front of the building wall are known. In a variant of the known systems retaining clips are usually mounted vertically along the building wall extending T-profiles by means of rivets or in recesses of the T-profiles, the retaining clips mostly in the manner of a tongue-and-groove system in the horizontal longitudinal edges at the top and bottom of the facade panels intervene. By usually retaining clips are arranged in the region of all four corners of each facade panel, each retaining clip fixes both the below and above the retaining clip arranged facade panel, thus an average of two retaining clips per facade panel are needed. In this known type of system, however, each individual retaining clip must be aligned on site at the construction site exactly along the T-profiles on the building wall and with (usually two) rivets individually manually connected to the T-profiles of the substructure. Such a modular fastening system with fastening brackets formed as retaining clips that with project specific to

CONFIRMATION COPY manufacturing recesses of (designed as T-profiles) grid carriers can be connected, for example, from the publication WO 2008/127 207 A2 known.

[04] In a further variant of the known systems for fastening facade panels, system rails are used, which are usually arranged vertically along the entire length to be covered in front of the building wall. Such system rails in this case comprise connecting elements, which are frequently arranged in a hook-like manner on the system rails, and which can be brought into engagement with grooves which are typically arranged on the rear side of the facade panels. In this type of system, the facade panels are thus hung after the attachment of the system rails to the building wall only in the fasteners of such hook rails formed.

[05] However, the latter fastening system also has various disadvantages. First of all, in such hook rail systems, it is necessary to plan and manufacture the rails with the typically integrally formed hook elements in principle object-related, so that the positioning of the protruding rail hook elements on the building wall with the layout of the planned facade and based on the Arrangement of the individual facade panels matches. This is even a uniform pre-production and storage of system elements, especially the system hook rails, not possible. If changes occur locally on the construction site, if individual rail elements are damaged or are lost, for example, the manufacturer must produce costly replacements and deliver them to the construction site as quickly as possible. This can lead to significant difficulties, delays and associated costs, especially in increasingly international construction projects.

[06] In addition, such known hook rail systems are usually technically and structurally limited in terms of their length to 3 m. This is due, inter alia, to the fact that the projecting hooks of the known rail systems are usually produced along the entire rail in a single punching process, which, however, is limited to a certain maximum rail length in terms of production technology. The generation of the hook on a longer rail (then in several punching operations), however, could lead to inaccuracies in the relative position of the hook, which not only unwanted tolerances on the building facade, but possibly also static over- or under-determination. ments and thus potential safety deficiencies in the attachment of the facade panels can result.

[07] The length limitation of known rail systems thus on the one hand leads to increased positioning effort during assembly, and on the other hand is unfavorable with regard to typical projectile heights, which in the buildings in question is usually greater than the permissible length of the hook rails, which not only facilitates assembly, but already the planning and customization of the mounting rails is complicated.

[08] Last but not least, the assembly of the known rail systems is complicated by the fact that the hook rails must be secured by means of numerous screws or rivets on a previously mounted along the building wall supporting profile. At the same time there are high demands in terms of accuracy, safety and care in the assembly of such known rail systems, which are often not complied with on the site, especially since the rails are no longer visible after completion of the facade, which favors mounting failure experience. [09] With this background, it is an object of the present invention to provide a modular fastening system for building facade panels, with which the disadvantages and limitations existing in the prior art are overcome. In particular, the simplest possible handling and error-avoiding assembly should be made possible on the construction site, and the need for object-related, individual production of system components, in particular system rails or support modules, should be eliminated.

This object is achieved by a fastening fitting with the features of claim 1, and by a raster carrier according to claim 10.

[1 1] Preferred embodiments are the subject of the subclaims. The modular fastening system according to the present invention is used for fastening facade panels of a building facade system to a building wall. For this purpose, the fastening system comprises a fastening fitting with at least one connecting element, which with a formkorrespondie- to the connecting element connecting connection on the back of the facade panel (or with other objects to be attached) is connectable.

According to the invention, the fastening system is characterized in that the height dimension of the mounting bracket, so the dimension of the mounting bracket along a substantially vertical direction of the building facade, smaller than a typical vertical module height grid of the facade system, that is smaller than the visible height dimension of used façade panels (plus one façade panel joint width). In this case, the fastening fitting is connectable to a substantially vertical along a building wall can be arranged raster carrier, wherein the raster carrier has a regular longitudinal grid with which the mounting bracket is positively engageable at least along the substantially vertical direction, ie in the direction of the earth's surface downwards.

This means in other words that the hitherto necessary, to be arranged along the entire height of the building wall to be arranged, project-specific to be prepared hook rails are replaced thanks to the invention by a modular or variable arrangement of small and compact, separate mounting hardware, which are positively positioned along grid carriers. The need for time-consuming, manufacturer-side preparation and production of specific project specific hook rails is thus eliminated. Instead, only standardized grid carrier with a regular longitudinal grid are required, which can be prefabricated in any quantities and lengths and / or kept in stock; together with the invention, also standardized standardized or standardizable mounting hardware.

Thanks to the invention - all conceivable facade layouts, including mixing grid (ie combination of different plate or module heights side by side or one above the other - by - within the grid spacing of the raster carrier - arbitrarily variable arrangement of mounting hardware on the mounted in front of the building wall grid carriers on a facade) and including clipped panels, clad with cladding panels, without the need to design and prefabricate project-specific items with regard to the girder systems. [16] It is also very easy to react to local peculiarities that occur at the construction site, subsequent changes or missing components, as in every case only standardized grid carriers or standardized fixing fittings are required. It is even possible for an individual local blank to be made of individual facade panels which can likewise be readily integrated into the façade by means of the fastening fittings and grid carrier according to the invention. The need for one-off production and costly and time-consuming subsequent delivery of individual, special rail parts can be completely eliminated thanks to the (as a yardstick standardized) grid carrier, which about nachzuliefernde mounting hardware due to the small dimensions also cause only low transport costs and low transport costs.

Since no continuous hook rails are required as a result of the invention, but this invention be replaced by pointwise distributed over the facade mounting hardware, results in a significant material savings in the context of up to 50% compared to the known conventional hook rail systems. In addition, the project-related risk is reduced for the developer because no individual project-related production of rail systems is required. Any remaining surplus of completed construction projects can easily be used in other projects, even if a new project uses different facade panels or module heights. Also, the existing in the prior art length limitation of the hook rails can be omitted, since thanks to the invention, no continuous hook rails, but only pointwise mounted mounting hardware are used. The raster carrier can be made with larger length dimensions and mounted on the building wall, as is the case with the hook rails from the prior art. This depends (in addition to the limited manufacturing accuracy of project specific to be produced and usually punched at one piece hook rails from the prior art) and the fact that the grid carrier according to the invention, unlike the known rail systems, not again on additional, usually made of aluminum T-profiles but instead be fixed directly on the facade substructure. [19] This is particularly advantageous for the usual storey heights, which are usually greater than 3m (the current length restriction of the hook rails). Thanks to the invention For example, the lengths of the raster carrier can be standardized with the storey heights, so that there is a much simplified planning and installation of the entire facade substructure, especially for open floors such as car parks. The invention is first realized independently of how the connection and the positive engagement between the mounting hardware and the raster carriers takes place. For example, the fastening fittings could also be screwed or riveted to the grid carriers. According to a particularly preferred embodiment, the connection and the positive engagement between the fastening fittings and the raster carrier is effected by arranged on one of the two elements hook elements, and arranged on the other element latching recesses, wherein the hook elements and the recesses are formed in a form corresponding to each other.

[21] In this way, the mounting hardware can be connected without tools and at the same time exactly with the raster carrier by simply hooked the hook elements on the one element in the recesses on the other element. The necessary in the prior art, manually produced connection between the mounting hardware and the associated substructure on the facade by a variety of screws, rivets or the like thus eliminates as well as the necessary fastening material, or is replaced by simple, exact hooking or one - Rest the fastening fittings according to the invention with the grid fasteners attached to the building wall.

[22] This is not least the safety and quality of execution on the job site contrary, because not (as in the prior art) fasteners can be forgotten or too few or incorrect fasteners can be used. Also, a centric arrangement and mounting of the mounting hardware is always guaranteed on the raster carrier in this way. The existing in the prior art (with the necessary individual attachment of the holding systems on the support profiles) existing danger and often actually found execution in the holding systems are not centric on the support profiles, or the prescribed drilling distances to the edge of the support profiles are not met are excluded with the invention. [23] The hook elements are preferably arranged on the fastening fitting, and the latching recesses on the raster carrier. In this way, the raster carrier can be designed in particular as a simple T-beam, H-beam, L-beam or as a rectangular tube with corresponding formed as a regular perforation recesses. The mounting hardware can thus easily hung by means of their hook elements in the recesses of the grid carrier and thus be positioned without manual adjustment in the simplest way in the intended grid spacing on the facade.

[24] Preferably, the latching recesses of the grid carrier are formed as stamped recesses. This counteracts cost-effective production of the raster carrier.

According to further embodiments of the invention, the hook elements, and preferably also the connecting elements of the mounting bracket are each designed as one-piece components of the mounting bracket, the mounting bracket particularly preferably as a one-piece forming part, so for example punched from a piece of sheet metal and bent or embossed formed is. In this way, a particularly simple and robust handling of the mounting bracket, which is also inexpensive to produce in large quantities.

[26] A further, particularly preferred embodiment of the invention provides that at least one resilient projection facing the raster carrier is formed on the attachment fitting. The resilient projection is designed so that it reaches at least against the vertical direction with one of the recesses of the grid carrier in a form-locking engagement, ie in the direction of the earth's surface upwards, as soon as the mounting bracket is brought into positive engagement with the raster carrier, so for example when hanging the hook elements of the mounting fitting in the recesses of the grid carrier.

In this way, a positive self-locking between lock fitting and grid carrier results as soon as the mounting bracket is brought into engagement with the grid carrier. This is particularly advantageous in the embodiment described above, in which the fastening fitting has hook elements, and the raster carrier for this purpose has corresponding recesses. Preferably while the resilient projection is also formed as an integral part of the mounting bracket.

[28] The invention is first of all realized independently of how the connection elements of the fastening fitting and the functional and formkorrespon- dierenden connection receptacles are formed on the back of the facade panel, as long as a reliable connection between the facade panel and the mounting bracket can be represented. According to a preferred embodiment of the invention, however, the at least one connecting element of the fastening fitting is designed as an engagement element, which can be brought into positive engagement with a recess that corresponds to the engagement element on the rear side of the facade panel.

[29] In other words, this embodiment means that the connection between the fastening fitting and the facade panel takes place in a form-fitting manner, for example, by attaching, for example, to the fastening fitting in the direction of the facade panel. protruding hooks are arranged, which come into positive engagement in (for example, L-shaped in cross-section) suspension grooves for engagement. The suspension grooves are arranged on the back of the facade panel, for example by these were formed during extrusion or pultrusion in the facade panel.

[30] An alternative embodiment of the invention provides that the connecting element is designed as an adhesive surface on the fastening fitting, wherein the adhesive surface on the fastening fitting can be connected to a counter surface which corresponds to the adhesive surface on the rear side of the facade panel. This embodiment of the invention is intended for the bonding of fastening fitting and facade panel, in that a bonded connection is produced between the adhesive surface of the fastening fitting and the mating surface on the facade panel, in particular by means of adhesive.

A particularly preferred embodiment of the invention provides that the fastening fitting can be arranged in a cross region of intersecting joints of facade panels, preferably in a crossing region of horizontal and vertical joints of facade panels. In this case, the fastening fitting comprises at least four connecting elements. This embodiment makes it possible, at least for the frequent Order of façade panels in a rectangular grid with intersecting joints - the connection of four façade panels each with a single fastening fitting. For this purpose, the fastening fitting has four connecting elements and is arranged in the joint crossing region of four facade panels, so that each of the four connecting elements of the mounting bracket can be brought into engagement with one of the four facade panels. This means in other words that on average only one mounting bracket per facade panel is required, which can significantly reduce material and assembly costs as well as the assembly time of the facade.

[32] The invention is further realized regardless of which material the fastening fitting consists, as long as the resulting loads can be removed with sufficient certainty permanently from the mounting bracket. As already stated, the fastening fitting may consist, for example, of sheet metal, in particular in the form of a one-piece stamped or deep-drawn part. However, according to a further embodiment of the invention, the fastening fitting is made of organic polymer. This embodiment leads to a particularly lightweight, corrosion-resistant and possibly low-cost design of the fastening fitting by this example, as a high-strength plastic injection molded part or pressed part, e.g. made of glass fiber reinforced polyamide or made of organic sheet.

[33] The invention further relates to a raster carrier according to claim 10 for a fastening fitting according to the invention as described above. The preferably made of metal grid carrier is characterized by a regular longitudinal grid, wherein the grid carrier and the longitudinal grid are formed so that the mounting bracket at least along the substantially vertical direction (ie in the direction of the earth's surface downwards) form-fitting manner with the longitudinal grid of the grid carrier in Intervention can be brought. Thanks to the so-formed grid carrier and the mounting bracket according to the invention, the previously required in the prior art, to be arranged along the entire height of the building wall to be arranged and project specific hook rails to be standardized by a variable, pointwise arrangement of handy and compact mounting hardware along a standard, as meterware producible grid carrier to be replaced. The need for elaborate manufacturer-side planning and production of project-specific nensysteme deleted. Instead, only the inventively standardized grid carrier with regular longitudinal grid are required. These can be prefabricated in any quantities and lengths and / or keep in stock, in contrast to the known rail systems with project-specific necessary shaping or punching. Thanks to the - as part of the grid spacing of the raster carrier - arbitrarily variable arrangement of mounting hardware on the grid carriers can be covered with facade panels thanks to the invention any façade layouts without the substructure project specific components are required. It is very easy to respond to local peculiarities, changes, or missing components, since in each case only standardized raster carriers and project-specific rails are used. The need for one-off production and any costly and time-consuming subsequent delivery of individual, especially to be produced rail parts on the site eliminates thanks to standardized meter fabric rack carrier, of which, for example, always a certain amount of excess can be kept on the spot. After completion of a construction project, remaining surplus quantities can easily be used again for other projects, even if a new project uses different facade panels or module heights.

[0005] Since, as a result of the invention, no continuous hook rails are required as a result of the invention with the standardized raster carrier, but instead, thanks to the invention, fastening fasteners distributed point by point along the raster carrier, substantial material savings of up to 50% over conventional hook rail systems can be achieved , Thus, for example, higher-grade, in particular corrosion-resistant materials can be used for the facade substructure without cost increase. Further eliminates the existing in the prior art length limitation of the rail systems, because thanks to the grid carrier no on-piece to be produced hook rails are required, but the pointwise freely and accurately positioned along the grid carrier mounting hardware can be used. Also, the raster carriers can be mounted with greater length dimensions on the building wall, as is the case with the hook rails of the prior art, especially since the latter are usually project-specific and with limited repeatability punched in one piece have to. In addition, the raster carrier according to the invention, unlike the known rail systems, do not have to be mounted again on additional, mostly made of aluminum T-profiles, but instead are mounted directly on the facade substructure. Finally, it is provided according to a further preferred embodiment of the invention that the raster carrier is designed as a self-supporting, rigid profile, preferably as a hollow profile, in particular as U-profile or Ω-profile such that the raster carrier cantilevered over long lengths, in particular can be stretched over entire building floors. The training as a hollow profile, in particular as a U-profile or omega profile (with each side projecting on the carrier Abkantungsbereichen for mounting the carrier directly on the ground or on the building wall) is advantageous because the raster carrier in this way (even without wall holder ) can be laid directly along a building wall or building facade especially if larger support distances are present. Such larger support distances, for example, whole storey heights, for example, in open building facades as car parks can be completely freewheeling spanned by the grid carrier thanks to this embodiment of the invention, which simplifies the planning, execution and installation of building facades in such cases over the prior art in a crucial way.

[38] In the following, the invention is explained in more detail with reference to exemplary embodiments of illustrative drawings. It shows

Fig. 1 in an isometric view fastening fitting, raster carrier and joint spring according to an embodiment of the invention;

Fig. 2 in a representation corresponding to Fig. 1 raster carrier and mounting bracket in a rear view; Fig. 3 is a schematic sectional view of a building facade according to the

Prior art in vertical section;

FIG. 4 shows the building facade of the prior art according to FIG. 3 in horizontal section; FIG. Fig. 5 in a Fig. 3 corresponding representation and view of a building facade with mounting hardware and grid carrier according to the invention;

FIG. 6 shows the building facade according to FIG. 5 in horizontal section; FIG.

7 shows a schematic vertical sectional view of raster carriers with fastening fittings of a first type;

8 in a representation corresponding to FIG. 7 raster carrier with fastening fittings of another type design;

9 shows a schematic front view of a raster carrier according to the present invention; FIG. 10 shows the raster carrier according to FIG. 9 in plan view; FIG.

Fig. 1 1 in an enlarged view a recess of the raster carrier according to FIGS. 9 and 10;

Fig. 12 the raster carrier according to FIG. 9 to 1 1 with a selection arranged thereon

Mounting brackets; 13 shows the raster carrier according to FIGS. 9 to 11 with an alternative arranged thereon

Selection of fastening fittings;

14 shows the raster carrier according to FIGS. 9 to 11 with a further arranged thereon

Selection of fastening fittings;

FIG. 15 shows a selection of identical raster carriers similar to FIGS. 9 to 11, each with differently arranged, partially different attachment fittings;

16 shows a raster carrier similar to FIGS. 9 to 11 with a selection of facade panels and fastening fittings of a first type arranged thereon;

FIG. 17 shows the raster carrier similar to FIG. 16 with a selection of

Facade panels and fixing fittings of another type; 18 shows a vertical section of a section of a building facade according to the invention with a window reveal;

19 in a representation corresponding to FIG. 18 a detail of a further building façade according to the invention with window reveal; FIG. 20 shows a front view of an exemplary embodiment of a fastening fitting according to the present invention; FIG.

FIG. 21 shows the fastening fitting according to FIG. 20 in a side view; FIG.

FIG. 22 shows the fastening fitting according to FIGS. 20 and 21, with raster carrier and joint spring, similar to FIG. 1, in a schematic plan view; FIG. 23 is a front view of an exemplary embodiment of a further fastening fitting according to the present invention; FIG.

FIG. 24 shows the fastening fitting according to FIG. 23 in a side view; FIG. and

25 shows two fastening fittings according to FIGS. 23 and 24, as well as a raster carrier similar to FIGS. 1, 2 and 9 to 11, in a schematic plan view. [1] FIG. 1 shows a fastening fitting 1 according to the invention with a height dimension H, which is hooked into a raster carrier 2 likewise according to the invention. In addition, a joint spring 3 is shown, which u.a. a uniform distance of the vertical joints between the (not shown here) facade panels causes. [40] It can be seen in this embodiment of the mounting bracket 1 from the mounting bracket 1 projecting towards facade panel connecting elements 4, which, for example. can engage in the rear side in the facade panels arranged grooves, and hold the facade panels so form-fitting and fix.

[41] The fastening fitting 1 shown has four hook-shaped connecting elements 4. This allows - in the usual arrangement of facade panels in a rectangular grid with intersecting joints - the hanging of four facade panels to each mounting bracket 1 by the mounting bracket 1 in the joint Intersection of four facade panels is arranged. In this way, on average, only one mounting bracket 1 per facade panel is required.

[42] Also recognizable here is the present in the form of a hole punching regular longitudinal grid 5 of the raster carrier 2, in which the mounting bracket 1 by means of (in this embodiment) rear hook elements 6 positively along the vertical direction 7, ie in the direction of the earth's surface down, can be hung.

[43] Figures 3 and 4 show a modular building facade with facade panels according to the prior art. One first recognizes a building wall 8 with curtain wall panels 9 and with a thermal insulation layer 10 arranged between the building wall 8 and facade panels 9 (here indicated only schematically).

[44] According to FIGS. 3 and 4, the facade panels 9 are fastened to the building wall by means of a rail system known from the prior art with continuous hook rails 11. For better recognizability, the continuous hook rail 1 1 is drawn black in FIGS. 3 and 4, and additionally highlighted in FIG. 3 by means of a dashed circumferential line.

[45] In the prior art wall bracket 12 are first attached to the building wall by means of dowels and screw anchors. On the wall brackets 12 are then along the entire vertical height of the building wall 8, as far as this is to dress, continuous carrier rails 13, usually made of aluminum. On the support rails 13, in turn, the continuous hook rails 1 1 are fastened by means of screwing or riveting to the support rails 13. The attachment of the hook rails 1 1 to the support rails 13 must be done with high accuracy, since this already the final position of the later to be hung in the hook rails 1 1 facade panels 9 is set.

In addition, the hook rails 1 1 according to the prior art are always project-specific to make. This means that the distances between the hooks on the hook rails 1 1, in which the facade panels 9 are hung according to the layout and distribution of facade panels already in the factory to 100% planned and executed by punching the hook rails and fixed. amendments On site at the construction site are therefore no longer possible. If one of the hook rails 1 1 lost or damaged, it must be reordered, individually manufactured by the manufacturer with exactly the same hook arrangement, and individually delivered to the site, which can lead to enormous costs and delays, especially in international construction projects.

[47] For comparison, FIGS. 5 and 6 show a building facade similar to the building facade shown in FIGS. 3 and 4, but here with fastening fittings 1 and grid carriers 2 according to the invention.

[48] It can be seen that, instead of two continuous side members 13, 11 (as in the state of the art according to FIGS. 3 and 4) along the entire facade height to be covered, they are also screwed or riveted together with high accuracy and great effort must, in an inventively executed cladding according to FIG. 5 and 6, only the raster carrier 2 is laid continuously along the building wall. The raster carrier 2 is therefore not again mounted by means of numerous fastening elements on a separate carrier rail 13 (as in the prior art), but fastened directly to the building wall 8 by means of the wall brackets 12.

Subsequently, the fastening fittings 1 according to the invention can be hung directly into the longitudinal grid 5 of the grid carrier 2. It eliminates thanks to the hook elements 6, which engage positively in the longitudinal grid 5 of the raster carrier 2 (see Fig .. 1 and 2), any need for additional manual alignment and attachment of the mounting hardware 1 on the raster carrier 2, in particular (as in the prior art) by screwing or riveting hook rails and carrier rails.

[50] In Fig. 5, the drawing-related lower mounting bracket Γ is a (horizontal) "half" mounting bracket, which can be used in the area of closures of the facade, ie in those areas in which the panel with Façade panels 9 based on the vertical ends or forms an edge. This is the case, for example, in FIG. 5 at the lower edge of the lower facade panel 9 '. Similarly, "half" mounting hardware can also be provided for lateral plate terminations, for example in the form of (not shown here) vertical "half" mounting hardware. According to the invention, the fastening fittings 1, 1 'have a height dimension H which is smaller than the typical modular height grid M of the facade system, ie smaller than the visible height dimension M of the typical facade panel 9 used in each case plus a facade panel joint width (see FIG Fig. 3). [52] FIGS. 7 and 8 show two different variants of fastening fittings 1 or of half fastening fittings Γ, which are respectively arranged on the same or the same grid carrier 2. Again, the mounting hardware 1 and Γ the better Erkennbarkeit half bordered by dotted line.

[53] The spacing of the recesses of the punched longitudinal grid 5 in the raster carrier 2 is designated R in the embodiment shown. A typical suitable for common facade panels grid R on the raster carrier 2 is for example 25 mm. In this embodiment, two different types of fastening fittings 1, respectively, are provided, namely type "A" (FIG. 7) and type "B" (FIG. 8). The fastening fittings 1 or Γ type "B" differ from mounting fittings according to type "A" in that the hook elements 6 in the attachment fittings 1 and the type "B" by the dimension R / 2 down (referring to the drawing or relative to the vertical direction 7 in the installed state on a building facade) are shifted, as indicated at letter "X" in Fig. 8. This results, together with the grid spacing R of the raster carrier 2, the possibility of not only being able to position facade panels freely in the raster R, but the facade panels can in this way (by selecting the fixing fittings 1 or in each case of the type "A"). or type "B") are positioned in the twice as fine grid R / 2. This applies in the same way also for the half attachment fittings 1 and Γ, as they are each shown in the lower part of Fig. 7 and 8 respectively. [54] Even finer or individual distances for the positioning of the facade panels can be achieved that in each case corresponding mounting hardware 1 and / or grid carrier 2 are made individually.

[55] FIGS. 9 to 11 again show the design and details of the raster carrier 2 (cf., in particular, FIGS. 1 and 2). It can be seen the punched recesses of the perforated grid 5, which in the embodiment shown in a uniform grid spacing of size R. are arranged. It can be seen that the recesses of the perforated grid are widened in the upper region in order to facilitate the insertion of the hook elements 6 of the fastening fittings 1. In the lower area, the recesses of the perforated grid 5 are narrowed so that a firm and play-free locking of the hinged fastening fittings 1 on the grid carrier 2 results.

[56] Fig. 10 shows that the raster carrier 2 is designed in the present embodiment as a T-carrier. However, the raster carrier can have any other carrier cross-section as long as the longitudinal raster 5 can be accommodated and manufactured on the raster carrier 2.

[57] FIGS. 12 to 14 again show, by way of example, how the use of "complete" and "half" fastening fittings 1, as well as selection of the respective type "A" or "B", allows a very wide variety of layouts of facade panels with a grid spacing R or half the grid spacing R / 2 can be planned and executed. It can also be seen from FIG. 15 how, thanks to the invention, virtually any layouts can be realized with modular facade panels 9 with a wide variety of vertical pitches "M", that is to say with the most varied dimensions of the facade panels 9 along the vertical direction 7, wherein the height dimension H According to the invention, H 'of the fastening fittings 1 (in FIG. 15 again indicated by dashed lines) is smaller than the modular height grid M of the respectively used facade panels 9. In the drawing-related example on the left of FIG. 15, the grid carrier is shown 2 for better visibility of the grid and the grid spacing R shown schematically cut.

In the case of the examples of arrangements of facade panels 9 marked with the letter "X", fastening fittings 1 with a height dimension H are used which are chosen such that each fastening fitting 1 overlaps three times the grid spacing R of the grid carrier 2, while Fastening fittings 1 in the other shown in Fig. 15 columns or façade examples (without letter "X") are made slightly longer by over four times the grid spacing R of the raster carrier 2 overlap. Which height dimension H / H 'or which multiple of the grid spacing R is selected for the respective mounting bracket 1 depends on the dimensions and Nutenabständen N and N 'of the selected facade panel 9 from. In the examples marked with "X" in FIG. 15, the groove spacing N on the rear side of the facade panel 1 is for example smaller than the groove spacing N 'of the facade panels 1 in the remaining examples in FIG. 15. Therefore, the facade panels 1 are attached the examples marked with the letter "X" mounting hardware 1, the smaller height dimensions H than the height dimensions H 'in the remaining examples have.

FIGS. 16 and 17 show two further examples of the cladding of facades with modular facade panels 9, wherein again identical raster supports 2 with the same raster spacings R are used. In FIGS. 16 and 17, the raster carrier 2 is again shown in schematic longitudinal section for better recognition of the rastering and the raster spacing R.

The facade panels 9 in the example according to FIG. 16 have a larger groove spacing N 'in the region of the horizontal joints (as a result of the design of the respective facade panel upper edge), while the facade panels 9 in the example according to FIG Design of their upper edge have a smaller groove spacing N there. Accordingly, in the exemplary embodiment according to FIG. 16, fixing fittings 1 are inserted with a larger height dimension H '(namely, four times the grid spacing R of the raster carrier 2), whereas in the exemplary embodiment according to FIG. 17, fixing fittings 1 are smaller (three times the grid spacing) R decreasing) height dimension H are used.

[62] Again, it can be seen again that thanks to the invention one and the same raster carrier 2 is used with always unchanged, standardized grid spacing R, and yet installed any number of different facade panels with different modular height grids M and different groove spacing N in the simplest way or can be mounted.

[63] Figs. 18 and 19 show that this also applies in connection areas such as, for example, a window reveal. In the example according to FIG. 18, "whole" and "half" fixing fixtures 1 according to the invention are used for this purpose, in order to fit the window opening 14 to fasten adjacent facade panels 9, wherein the facade panels 9 are untrimmed in the example of FIG. 18.

If the necessity for (horizontal) trimming of facade panels arises, for example in the region of a window opening 14, then also trimmed facade panels 9 'can be easily and accurately fitted with the fastening system according to the invention consisting of fastening fittings 1, 1 and raster support 2, such as shown in Fig. 19.

[65] FIGS. 20 to 22 again show the fastening fitting 1 according to the exemplary embodiment already shown in FIGS. 1 and 2. It can be seen again the cost-effectively producible, as a one-piece stamped / bent part of sheet metal, mounting fitting 1 with connecting elements 4 and hook elements 6, the latter for positive engagement in the raster carrier 2, and the former for positive engagement in the rear joints of ( not shown here) facade panels 9 serve.

[66] In FIGS. 20 and 21 it is also possible to identify resilient projections 15 which serve for the positive engagement on the raster carrier 2, along the vertical direction 7 '(ie in the direction from the earth's surface upwards), and in each case with a recess 5 of the longitudinal grid on the raster carrier 2 engage positively as soon as the mounting bracket 1 is hooked by means of its hook elements 6 in the longitudinal grid 5 of the raster carrier, as is apparent from Figs. 1, 2, 7, 8 and 12 to 14. The thus formed, positive disassembly backup can only be resolved or reversed by the resilient projections 15 are mechanically bent back.

Fig. 22 again shows the joint spring 3, which is arranged between each two horizontally adjacent facade panels. By the joint spring 3 spring pressure is exerted on the facade panels both in the longitudinal direction of the facade panels (horizontally along the facade) and from behind against the back surface of the facade panels so that they are fixed rattling on the one hand, and on the other hand can not slide horizontally, which also results in a permanently straight joint image. [68] An alternative embodiment of a mounting bracket is shown in Figs. The fastening fitting 1 according to FIGS. 23 to 25 likewise has hook elements 6, with which it engages in each case in the recesses 5 of the longitudinal grid of the raster carrier 2. In contrast to the fastening fitting 1 shown in FIG. 1, 2, 5 to 8 and 12 to 22, which is adapted for engagement in the rear grooves on the facade panels 9 by means of its connecting elements 4, the mounting bracket 1 as shown in FIG. 23 to 25 of the attachment of facade panels 9 with a smooth back to a grid carrier 2 with longitudinal grid 5. For this purpose, the facade panels 9 are adhesively bonded by means of adhesive 15 to the front surface of the mounting bracket 1.

Claims

claims

1. Fastening fitting (1) of a modular fastening system for building façade panels (9), the fastening fitting (1) having at least one connecting element (4) with a to the connecting element (4) formkorres- ponding connection receptacle on the back of the facade panel (9 ), wherein the height dimension (H) of the mounting bracket is smaller than the module height grid (M) of the facade system, that is smaller than the visible height dimension of the facade panels plus a facade panel joint width, and wherein the mounting bracket (1) with a to the Attachment system belonging, substantially vertically (7, 7 ') along a building wall can be arranged grid carrier (2) is connectable,

characterized,

in that the grid carrier (2) has a regular longitudinal grid (5) of uniformly spaced latching recesses (5), with which the mounting bracket (1) can be engaged in a form-locking manner at least along the substantially vertical direction (7), wherein the grid carrier (2) is designed as a self-supporting rigid profile such that the grid carrier (2) cantilevered over entire building floors, and wherein the mounting bracket (1) at least four connecting elements (4) for hanging four in a joint crossing area adjacent facade panels having.

2. Fastening according to claim 1,

characterized,

in that the connection and the positive engagement of the two bodies "fastening fitting (1)" and "raster carrier (2)" are effected by hook elements (6) arranged on the fastening fitting (1) and correspondingly shaped latching recesses (5) arranged on the raster carrier (2) ,

3. Fastening according to claim 2,

characterized,

the hook elements (6) are formed as one-piece components of the fastening fitting (1). Fastening fitting according to one of claims 1 to 3,

characterized,

in that the at least one connecting element (4) is formed as an integral part of the fastening fitting (1).

Fastening fitting according to one of claims 1 to 4,

characterized,

that the fastening fitting (1) is formed as a one-piece sheet-metal forming part.

Fastening fitting according to one of claims 1 to 5,

characterized,

in that at least one resilient projection (15) facing the raster carrier (2) is formed on the attachment fitting (1), wherein the resilient projection (15) engages with a latching recess (5) of the raster carrier (2) in positive locking engagement at least counter to the vertical direction (7 '), when the fastening fitting (1) with the raster carrier (2) along a vertical direction (7) is brought into positive engagement.

Fastening fitting according to claim 6,

characterized,

that the resilient projection (1) is formed as an integral part of the fastening fitting (1).

Fastening fitting according to one of claims 1 to 7,

characterized,

the connecting element (4) is formed on the fastening fitting (1) as an engagement element (4) which can be brought into positive engagement with a recess corresponding to the engagement element (4) on the rear side of the facade panel (9).

Fastening fitting according to one of claims 1 to 8,

characterized,

that the fastening fitting (1) consists essentially of organic polymer. Use of a raster carrier (2) for receiving a fastening fitting (1) according to one of claims 1 to 9,

wherein the raster carrier (2) has a regular longitudinal grid (5) of consistently uniformly spaced latching recesses (5), wherein grid carrier (2) and longitudinal grid (5) are formed so that the mounting bracket (1) at least along a vertical direction (7) positively with the longitudinal grid (5) of the raster carrier (2) is engageable, and wherein the raster carrier (2) is designed as a self-supporting rigid profile such that the raster carrier (2) cantilevered over entire building floors can be stretched.

Raster carrier according to claim 10,

characterized,

the latching recesses (5) of the grid carrier (2) are formed as stamped recesses (5).