Glas-Metall-Fassadenverbundplatte

The invention concerns a metall-glass front composite slab after the generic term of the patent claim 1.

In the EP611854B1 is a glass composite slab for Wandund building lining with at least a thicker windowpane and at least a thinner Metallblech, which is connected by an adhesive layer, descriptive.

The Metallblech and the windowpane exhibit preferably for instance the same coefficients of expansion and the glass group are held a retaining construction or a window construction at the wall of the building. At least one edge of the Metallblechs is ago freely accessible from the flat side of the glass composite slab and on this edge is fastened after connecting the windowpane with the Metallblech means of mounting such as staybolt, screws made of metal by welding.

Disadvantage of the well-known glass composite slab is that the Metallblech holds the windowpane only in the kind of a Bilderrahmens edge-laterally from the rear and that only in the frame area of this Metallbleches the punctiform means of mounting can be welded back to the Metallblech.

The technology at that time of the resistance welding did not permit it that at a relatively thin metal plate back attaching pins could be welded, without the welded joints of the front of this Metallblechs were visible ago. This was taken at that time in purchase. Therefore the Metallblech was glued to only as circulating framework to the total surface back of the glass plate and welded within this range the means of mounting. Therefore the disadvantage existed that one from the front, i.e. by the glass plate through, which could recognize spotwelds on the frame-lateral Metallblech.

For this reason the frame area was optically covered ago by the front of the glass plate and covered in the kind of a Passepartouts optically. Thus however the disadvantage was given a insufficient attachment of the glass composite slab, because this could become only frame-laterally with means of mounting at the front, fastened there, suspended.

Thus the further disadvantage developed that because of the unfavorable attachment suspension only windowpanes of small thickness could be used and with small weight per unit area. Apart from the optical restrictions (optical frame-lateral cover from the view side of the glass plate ago) therefore also the disadvantage of a bad load transfer of the glass composite slab insisted on the front side.

Further mentioned that the plastic layer of adhesive is formed by at least one foil and the foil consists of polyvinyl butyral (PVB) or PU (PU) and the thickness of a foil layer about 0.4 millimeters amounts to and those the windowpane assigned side of the Metallblechs an even surface exhibits, is preferably polished and together by the windowpane through as mirrors works and that two Metallbleche and/or.

Metal metal strips with a windowpane are together-covered and that them are designed as parapet wall disk, a thick windowpane and a equivalent large Metallblech exhibits and that edge near at the Metallblech means of mounting are intended.

Furthermore in this block letters a procedure for the production of a glass composite slab is called, whereby the thin Metallblech as well as a foil, adhesive layer, under warmth and pressure is e.g. up-covered on a side of the windowpane, preferably by bonding and an autoclave process. Then in the edge-lateral places punctiform pin-like means of mounting are welded on on the thin Metallblech, preferably by means of resistance welding, whereby the duration of the current admission, which amperage, to which temporal process of the amperage and the height and time of the pressure load of the retaining means, by preliminary tests are specified, given.

This block letters reveal only the training of the glass composite slab as parapet wall disk, consisting of a thicker windowpane and a equivalent large thinner, than closed frameworks trained Metallblech, whereby edge near at the Metallblech the retaining means are intended for the attachment of the glass composite slab over a retaining construction at the wall. A wide attachment of the punctiform means of mounting is not to be taken out of this block letters however, because these can be fastened only edge-laterally on the Metallblech.

In all other respects it is not missing no coated and/or graphically arranged glass is called into the EP611854B1 a read-clearing away device for the windowpane and. A direct connection of the retaining construction on the Metallblech is not revealed, on the contrary an indirect connection is only made by means of a flexible separation profile or by a second strip of a Metallblechs.

There is therefore the disadvantage that only edge-lateral means of mounting are mentioned and not over the entire composite slab distributed means of mounting and the retaining construction and/or single Agraffen elements is fastened on the Metallblech not directly. This leads with larger metall-glass front composite slabs to problems concerning the sufficient dimensioning of the means of mounting and altogether to not a sufficient life span and/or security.

The invention is therefore the basis the task to suggest a metall-glass front composite slab and a procedure for their production which these disadvantages do not exhibit and are additionally economically producible, rapidly to be installed can and a long life span exhibit and the desires for a various coloured and graphic and impressive organization fulfilled.

For the solution of the task posed the invention is characterized by the technical theory of the requirement 1.

Substantial characteristic of the invention is that the punctiform means of mounting on approximately the whole surface not only when frameworks of trained Metallblechs are distributed fastened and the back of the windowpane is preferentially total surface connected with the Metallblech.

Thus the advantage results that the windowpane prefers now full-laminar with the Metallblech is connected and thus rimlessly the view side of the front forms. Without only edge-laterally metal metal strips, on which the punctiform means of mounting are distributed located, arranged at the windowpane, can be done. The punctiform means of mounting are arranged rather distributed on the entire surface of the Metallblechs and the windowpane are preferentially essentially full-laminar connected with the Metallblech, which leads to a substantially better load transfer on the front.

Because without edge-laterally arranged metal metal strips can be done, the metall-glass front composite slab according to invention forms rimlessly the view side of the front, because the Metallblech takes the glass plate off full-laminar from the rear. Optically disturbing welded joints, which were through visible with the state of the art of the front of the glass plate by these, are void now, because they are not through visible owing to a new arc pin weld any more from the front of the metal plate by the windowpane.

Thus completely new design possibilities result, because the load demolition there back the fastening parts welded by the Metallblech on takes place now to arbitrary points on the entire surface of the metall-glass front composite slab. On the one hand now wide metall-glass front composite slabs can be fastened with high weight per unit area to a front surely and on the other hand are no longer necessary an optical cover of welded joints from the view side of the metall-glass front composite slabs.

The metall-glass front composite slab consists according to invention of a thicker windowpane and a thinner Metallblech, in particular a high-grade steel sheet metal, which full-laminar with one another by a permanent elastic polymere and transparent and/or transluzente detention sandwich foil from polyvinyl butyral (PVB) or PU (PU) or ethyl vinyl acetate copolymers (EH) or EVM (EH with high Vinylacetal content - Levamelt of the company Lanxess) is connected. On the Metallblech are arranged by means of arc pin weld a majority by punctiform means of mounting (prefers made of high-grade steel). These means of mounting are connected with in each case a Agraffe and the Agraffen are adjustable and ascertainable hung up in at least two to each other parallel, front-laterally arranged rails.

The Metallblech in an execution form on the lower side at least is in such a manner by the piece bent trained that it works read-clearing away for the windowpane.

In a second read-clearing away execution form read-clearing away elements in L-form on the lower range of the Metallblechs are fastened. The L-shaped can be read-clearing away element over the entire width trained or only by the piece.

In a third read-clearing away and/or glass-securing execution form so-called glass Agraffen is ground in into the glass edge of the windowpane kreissegment förmig and into it intervenes a read-clearing away U-element, which is connected with the Metallblech again by means of means of mounting.

Further a procedure for the production is called, whereby the glass plate with that to permanent elastic polymere detention sandwich foil and the Metallblech in a Vorlaminator it are responsible connected and in an autoclave under Druckund temperature influence bubble-protect are interconnected and application as facade component without aesthetically disturbing visible means of mounting between the individual metall-glass front composite slabs and with the possibility kostenund of the time-careful assembly in form of hanging up and lateral fixing and with the possibility of the aesthetic coloured and graphic organization and is enough for life span.

The invention article of the available invention results not only from the subject of the individual patent claims, but also from the combination of the individual patent claims among themselves.

All in the documents, including which data and become characteristics, in particular the spatial training represented in the designs revealed summary, as invention-substantially stressed, as far as they are new separately or in combination in relation to the state of the art.

In the following the invention is more near described on the basis of several remark ways representing designs. Here further invention-substantial characteristics and advantages of the invention come out from the designs and their description.

Show:

Figure 1: a schematic cut by a metall-glass front composite slab (1) in a first execution figure 2: a schematic cut by the boundary region of a metall-glass front composite slab (1) in a second execution figure 3: a schematic opinion on 4 exemplarily arranged metall-glass front composite slabs (1) and their attachment figure 4: a schematic cut by the lower boundary region of a metall-glass front composite slab (1) with a read-clearing away L-element (25) • • mm mm mmm •” and means of mounting (28) tit according to the Ausfühungsbeispiel after figure figure 5: a schematic cut by a third execution form also into the lower boundary region of a metall-glass front composite slab (1) ground in glass Agraffe (29) with a read-clearing away U-element (27) and means of mounting (28) and a permanent elastic polymere element (26)

Figure 6: a schematic plan view on the lower boundary region in figure with a ground in glass Agraffe (29) into the boundary region of the windowpane (2) with a iastabtragenden U-element (27) figure 7: a cut by the remark example after figure 1 with representation of further details figure 8: the plan view on the representation after figure 7 figure 9: schematizes a plan view on the pin welding gun figure 10: The representation of the operational sequence with the stud welding.

In figure 1 a schematic cut becomes by a metall-glass front composite slab (1) with the sun (5) front-laterally and a wall (16) back represented.

LN of this execution becomes a windowpane (2) connected with a back Metaüblech (4) represented by a permanent elastic polymere detention sandwich foil (3). On the back of the Metallblechs (4) are means of mounting (8) by means of arc pin weld and with the means of mounting (8) a Agraffenelement (9) fastens becomes fastened.

In the exemplary execution in figure 1 a hanging up rail (10) identically constructed to the Agraffenelement (9) becomes represented. The Agraffenformen (9, 10) are only exemplarily to be pointed out and can in a various way be varied and not have in particular to be not identically constructed trained.

The hanging up rail (10) is exemplarily connected with a positioning fixture (15) with the wall (16). The kind of the adjustment (15) is possible in a various way, whereby to the simple assembly and good adjusting possibility and/or Einstelibarkeit of the distance from the wall and the local XY position must be paid attention. In this available execution form a behind-ventilated front is outlined.

The windowpane (2) can from a highly transparent or a dyed floating windowpane (Kalk-Natron-Glas) or solar glass (glass with small Eisengehalt and/or less green colouring) to be selected and/or used part-linked up and is in such a manner a ESG (a disk safety glass is usually thermally linked up to a so-called) or TVG (partial initial tension glass) is besäumt and edge-laterally and/or with one chamfers (12) provided and with 2 to 19 mm of thickness, typically 6 mm up to 12 mm and prefers 6 mm up to 8 mm of thickness used.

With fronts with appropriate technical building regulations (e.g. the glazing is because of a traffic surface and is more largely 4 meters assigned in a height) a foreignsupervised hot-stored a disk safety glass ESG-H glass is usually used. A ESG-H glass is manufactured like normal ESG, heated up thus on typically 620°C to for instance 630°C and cooled down briskly with coolly air. Afterwards it is hot stored at a temperature of 290°C ±10°C several hours (hot storage test = Heat SoakTest). This additional procedure leads by the heating of the disk across several hours, e.g., at least 4 hours preservation time, to intended spontaneous breaks and reduces in such a manner the spontaneous breaks released by nickel sulfide inclusions from normal ESG in the employment. Spontaneous break the retarded destruction of linked up windowpanes (ESG) without recognizable outside effect is called.

The windowpane (2) can be graphically arranged or reciprocally by means of Rollenbeschichtung or curtain pouring or blades coated or by means of screen printing or InkJetDruck (6, 7). After the order of the color and/or.

Coating (6, 7) a preliminary drying is accomplished and afterwards the hardening process together with the ESG and/or TVG process with approximately 600 to 650°C, typically 620°C to 630°C implemented.

The colors for the coating and/or the graphic organization (6, 7) Emailfarben can be, thus colors with glass frits after the state of the art and are in such a manner externalsteady (level 1) and 3) know also on the glass inside (level 2) to be used and offered thereby a comparable detention group to the permanent elastic polymere detention sandwich foil (. Such Emailfarben can to be trained colored opak or transluzent and be able it 3D-Effekte produced, whereby the Glasdicke and the Glastranparenz the 3D-Effekt contributory and additionally with the choice of 2 transluzenten Emailfarben the surface of the Metallblechs (4) into the aesthetic effect to be also included can.

By admixture of various effect pigments like fine glass hollow balls from Borosilikatglas with and without coatings and/or of small transluzenten panels (Flakes; Glasflakes; Gimmerflakes) with diffraktiven coatings for the achievement of color tilting effects in the visible wavelength coverage or of luminescence pigments can be obtained various optical effects.

Apart from the usual Emailfarben on basis of glass frits also screen printingable, transluzente, metal-oxidic Sol gel colors on level 1 and 2 can be used. For example the screen printingable and hochreflektive Sol gel color with the designation LustRefelx TLU 0050A „Refelctive mirror coating “the company Ferro, who causes an order for wet by means of a polyester filter with more largely Mesh/cm mesh size made possible from 15 to 20 GM and after a preliminary drying with 100 to 130°C by distance all of solvents a layer thickness of 1 to 2 pm and with a typical annealing process for floating glass with 600 to 700°C and typically 3 to 6 minutes a nanometer thinness externalsteady (level 1) layer from approximately to 400 Nm results in. This coating and/or graphic organization (7) in principle level 2) can to take place and offers a good and continuoussteady detention group with the permanent elastic polymere detention sandwich foil also on the glass inside ((3).

By admixture of further nanoskaliger effect pigments with luminescence characteristics further various optical effects can to be obtained and by admixture of further nanoskaliger pigments as for example Titandioxid-Pigmente or ZnO pigments be able beside luminescence effects also interesting silk-matte of surface effects and such effects to be obtained.

Sol gel Beschichtungsbzw. Printing on procedures are wet-chemical procedures for the production of homogeneous, nano-crystalline ceramic or oxide-ceramic or ceramic-organic layers. The characteristic with Sol gel procedures consists of the fact that the production and/or separation of the materials proceeds in each case from a liquid Sol condition, which is transferred by a Sol gel transformation into a firm gel condition. Brine dispersions of firm particles in the Größenbereich between 1 Nm to Nm are called, which purify distributed (dispersed) in water or organic solvents are. Sol gel procedures generally proceed from Solsystemen on the basis of metal-organic polymers. The transition from the liquid Sol to the ceramic material is made in each case by a gel condition. During the Sol gel transformation it comes to a three-dimensional networking of the nano-particles in the solvent, whereby the gel receives solid characteristics. The transfer of the gel into a oxide-ceramic material takes place via a controlled thermal treatment under air.

The Metallblech (4) preferentially out of a high-grade steel sheet metal with high stability against rust infestation and good electrical weldability is selected and <xt for example with the quality and/or quality in accordance with EN 10020 with the material number 1,4510, 1,4520, 1,4521, 1,4512, 1,4509 or 1,4462 with a Wärmeausdehnungskoeffizienten (2o-ioo " c) selected from 10,0 to approximately 13.0 10 ' 6/K, whereby this enumerating the usable ft* ““* • ft ft ft ft •“ft ft “•• ft ftftftft ft ft * * ft *•” • “•“••ft ftftft ft high-grade steel sheet metal qualities is not complete and on respective application and/or specification and/or advertisement to be adapted must. It is generally valid that high-grade steel types with a small Wärmeausdehnungskoeffizienten are preferred from 10,0 to approximately 13.0 10 ' 6/K, there the windowpane a Wärmeausdehungskoeffizienten (xt<2o-ioo*c) of approximately 9.0 10 ' 6/K and a too high difference in the Wärmeausdehungskoeffizienten the detention group exhibits strongly would load.

A such Metallblech is completely particularly used in a thickness from 0,3 to 3.0 mm, in particular 0.5 to 2.0 mm and 0.8 to 1.5 mm of thickness and it can thereby M6 and M8 high-grade steel pin with ignition point as means of mounting (8) to be used and by the arc pin welding procedure with bit ignition with a welding procedure within the range of 1 MSEC to 3 MSEC the thermal load is in such a manner small in the metal sheet metal range to the permanent elastic polymere detention sandwich foil that with choice of a suitable tension no visible traces are to be recognized. The examination of the correct welding parameters takes place thereby with a transparent windowpane (2) and a brushed high-grade steel sheet metal (4).

The high-grade steel sheet metal (4) can be untreatedly used on both sides or be brushed or polished on the side trained as the windowpane and/or be generally used with a chemical or mechanical or laser-technical surface treatment and/or a surface structuring and/or a surface coinage.

As permanent elastic polymere detention sandwich foil (3) a foil becomes from polyvinyl butyral (PVB) with thicknesses of 0.38 mm, 0.76 mm, 1.14 mm and 1.52 mm or PU (PU) or ethyl vinyl acetate copolymers (EH) or EVM (EH with high Vinylacetal content - Levamelt of the company Lanxess) uses, whereby with larger surfaces and/or thicker steel sheets in particular detention sandwich foils (3) with thicknesses by 1.14 mm and 1.52 mm to be used, there both a ESGbzw. ESG Hoder TVG glass certain unevenness by the thermal treatment to exhibit and a thicker steel sheet unevenness to likewise exhibit knows and on the other side a high inherent rigidity exhibits and in such a manner effected via the laminating procedure in an autoclave laminate ion process after the state of the art for the production of compound safety glass elements a small reconciliation from possible unevenness.

Usually transparent detention sandwich foils (3) become used, as they are used according to standard with a VSG Laminierprozeß by windowpanes. However detention sandwich foils also dyed (3) use to be found and it be able PVB foils with seibstleuchtenden characteristics, thus with long-continuing to glow pigments, be used as for example the PVB foil LUMINEO von Kuraray Trosifol (www.trosifol.com/fileadmin/pdf/broschueren_201 1/disclaimer/OP_Lumineo_dts _6_201 1_net.pdf) can do for the architecture glazing.

The laminating procedure effected in preferential consequence similar to a glass laminating procedure, it becomes in a protected area (clean space-like with controlled temperature and air humidity) on the cleaned Metallblech (4) one or more detention sandwich foils (3) in the format of the Metallblechs (4) and/or.

with an appropriate oversize put and whereupon the windowpane (2) put and this sand-yielded after the state of the art by a Vorlaminator in the form of a Rollenlaminators (of Kalanders, roller frames) becomes is moved and it takes place a Vorverbund at temperatures of over 100°C, whereby the roles can exhibit temperatures of over 180°C. By the Vorverbund is sand-yielded (manipulatable, however still small to smallest cavities point 2, 3, 4) in the detention sandwich foil (3) up and let the group look still milk industrial union cloudy. The final laminating procedure is made usually in an autoclave at increased temperature in the range 100°C to 160°C, in particular with for instance 120X to 140°C on use of a PVB Laminierfolie and a increased pressure within the range of 1 0 to 15 kg/cm2 by often several hours of period spent. The task of the printing temperature process in autoclaves exists in the complete solution of remainder air and remaining humidity in the melted PVB foil, whereby air is well soluble at the temperatures mentioned in PVB. In the cooling phase while maintaining the full pressure contents are cooled for the autoclaves up to a glass area temperature down by for instance 40°C and discharged only afterwards the pressure from that autoclaves.

With the choice of the thickness of the detention sandwich foil (3) between windowpane (2) and Metallblech (4) plays still the thermal coefficient of expansion of the two elements (2, 4) a role and a that one of a Agraffe (9) and/or of hanging up rail (10), the two usually from aluminum and/or.

Aluminum alloys are manufactured.

Apart from the use of PVB foils (3) when permanent elastic polymere and transparent and/or transluzente or also luminescent detention sandwich foils (3) foils from PU (PU/TPU) or ethyl vinyl acetate copolymers (EH) or EVM (EH with high Vinylacetal content - Levamelt of the company Lanxess) can be used, whereby with EH foils similar to the Lamination of Photovoltaikmodulen so-called vacuum laminating plants can be used, which cause substantially smaller investment costs. When using EVM foils the laminate ion time can be reduced additionally. In all cases the kind of the permanent elastic polymere and transparent and/or transluzenten detention sandwich foils (3) in kind of application, the size of the individual metall-glass composite slab (1) and the thicknesses of the windowpane (2) and the Metallblechs (4) and the site conditions must to be co-ordinated and it have the relevant regulations and standards bezgl. Fronts to be considered.

In principle PVB foils exhibit certain advantages with the Lamination of windowpanes like a very well reproducible laminate ion process with the possibility remachining in case of of small cavities, a glass adhesion without adhesion mediators, a long storage time up to some years before the processing, a high optical transparency and a good UVBeständigkeit (25 - 30 years), temperature stability to 60 to 80°C and still further advantages, in addition, the disadvantage opposite EH that • * * • • flflfl • t flflfl autoclave is necessary and this in relation to a vacuum laminating plant is substantially more expensive and a substantially higher power connection value makes necessary and that the edge with a PVB Lamination somewhat more sensitively to water vapour and/or water reacted compared to EH Lamination and in the outside application in such a manner is somewhat more critical and certain construction principles must be considered. With a PVB Lamination for example the windowpanes are somewhat more largely selected than the Metallbleche with for example a glass projection (24).

The different Wärmeausdehnungskoeffizienten of the used materials represent a further substantial criterion.

As means of mounting (8) can be used a screw mounting or a thread mother or a socket or a hook or an eye. The means of mounting (8) preferentially made of a high-grade steel are manufactured, which is suitable for the arc pin weld and a so-called ignition point exhibits and in such a manner in the arc pin welding procedure with bit ignition with a welding procedure within the range of approximately 1 MSEC to 3 MSEC with the Metallblech (4) to be welded can.

When using 1,0 to 3.0 mm thick steel sheets (4) of the quality 1,4510 with RK (2o-ioo “C) of 10,0 10~®/K or 1,4520 with RKs (2o-ioo*c) of 10,4 10 ' 6/K or 1,4521 with CIT (2o-ioo " C) of 10,4 lO/K or 1,4512 with RK (2o-ioo " C) of 10,5 lO/K or 1.4509 with ai (2o-ioo'C) of 11,01 O/K or 1,4462 with RK (2o-ioo°c) of 13,0 10/K and such high-grade steel sheet metal qualities in such a manner M6 and M8 pin without visible change of the metal surface can to the detention sandwich foil (3) to be welded. In principle also economical 1,4301 high-grade steel sheet metals with one can aj (2o-ioo°c) by 16,0 10 ' 6/K to be used, whereby due to nevertheless somewhat the large thermal expansion coefficient difference to glass to the maximum size and possibly a relatively thick permanent elastic polymere detention sandwich foil (3) must be paid attention to be used must be paid attention and naturally must thereby to the necessary rust-resisting property.

During high requirement of the rust-resisting property V4A high-grade steel qualities with molybdenum (MO) is necessary additive.

In the figures 9 and 10 it is represented that during the welding procedure with for example a gap pin welding gun becomes first means of mounting (8), for example a M8 screw mounting, with one about 9 mm in diameter flange beginning of approximately 1 mm height and a centric ignition point from approximately 0.7 mm to 1.0 mm in diameter and 0.7 mm up to 1.0 mm height into the pin owner of the pin welding gun pushed. Then the pistol becomes perpendicular with all feet (electrical contact contacts) on the Metallblech (4) touched down. When releasing the welding procedure the screw mounting is raised by lifting magnets against a compression spring by 1 mm up to mm. The more highly the Abhub is selected, is the more briefly the welding duration. With the reaching of the end position the lifting magnet is switched off and the welding current is switched on. The screw mounting with the ignition point is accelerated of the Dmckfeder toward metal sheet metal surface. With the impact of the ignition point the metal sheet metal surface a large discharge current flows, whereby the ignition point evaporates and constructs themselves an arc, which melts on the entire front surface of the screw mounting and the one approximately equal large place at the Metallblech. The melted on front surface of the screw mounting dips the melting bath into the melted on metal sheet metal surface and the arcs expires and rigidly. This welding procedure takes about 1 to 3 MSEC and the gap pin welding gun can be perpendicularly taken off.

For the avoidance of Schmauchspuren and scale-pure the Metallblech (4) within the range of the welded joint with soap solution can to be moistened.

Alternatively to this gap pin weld also a contact pin weld can be accomplished, whereby by the choice of the gap stud welding the length of time and the thermal load of the Metallblechs can be kept shorter i.a, and the entire laminate group can thermally better is in such a manner preserved.

Under the metal-sheet metal-lateral Agraffe (9) that element is understood, which by the means of mounting (8) and in figure 1 represented by a screw mounting (8), with the Metallblech (4) is connected. Usually visible means of mounting are not designated for example with behind-ventilated facade panels with Agraffe. Agraffen can exhibit and consist very different forms usually of aluminum and/or of aluminum alloys.

Since aluminum and aluminum alloys a Wärmeausdehungskoeffizienten or (between 20°C and 100°C) of approximately 24 x 10 ' 6/K exhibit and a usual floating glass of only 9 x 10 " 6/K and a suitable steel sheet within the range 10 x 10 `6/K can a Agraffe (9) to be used and can in such a manner only by the piece into a hanging up rail (10) to be hung up, whereby to the different thermal coefficients of expansion must be paid attention. The Agraffen (9) usually exhibit elements for height adjustmenting (13) and for adjustment (14). These elements (13, 14) are only schematic and outlined exemplary and must with appropriate size of the metall-glass front composite slab (1) for the appropriate weight to be designed. The metal-lateral Agraffe by the piece (9) lies directly on the back of the Metallblechs (4) up. Thus develops at the means of mounting (8) little to no pull-out torque.

The hanging up rail (10) is further connected by schematic represented front fastening parts (15) with the wall (16). The way of the attachment can be realized in a multiplicity of different remarks and to the structural local conditions will usually be adapted. To a on a long-term basis safe attachment under adherence to the construction specifications and at the same time must a rapid assembly is paid attention possible be and must the unity divisibility concerning wall distance and XY position and/or the Winkeligkeit rapid and permanently possible be.

ft ft • • ” ftft* in the schematic representation in figure 1 an identically constructed Agraffe (9) and rail (10) becomes ft represented. This has the advantage that only one draw tool for both profiles (9, 10) is needed.

In figure 2 is a schematic cut by the boundary region of a metall-glass front composite slab (1) with means of mounting not welded yet (8) represented. In this training a thread welding pin (8) with a M8 thread and one about 9 mm in diameter flange beginning (21) becomes of approximately 1 mm height and a centric ignition point (22) of approximately 0.7 mm up to 1.0 mm in diameter and 0.7 mm up to 1.0 mm height centrically in the front surface of the screw mounting (23) used.

The metal sheet metal bending (11) becomes exemplary to over 2/3 of the thickness of the windowpane (2) trained and becomes within this range by the permanent elastic polymere detention sandwich foil (3) connected with the windowpane (2) and serves a certain security in the sense of a mechanical load demolition.

The metal sheet metal bending (11) can be over the entire lower edge trained or only by the piece.

In figure 3 a schematic is opinion on 4 exemplarily arranged metall-glass front composite slabs (1) with different in each case many means of mounting (8, 18, 19, 20) per Agraffe (9) pointed out. By the number of two or three or four means of mounting (8, 18, 19, 20) per Agraffe (9) smaller diameters of the means of mounting can be used and can security be increased. By the close Beabstandung (18, 19, 20) of the means of mounting (8) the different Wärmeausdehungskoeffizient between aluminum and/or the aluminum alloy of individual Agraffe and the Metallblech (4) no problem places and know the individual Agraffen (9) in line to be positioned very exactly to each other and fastened.

In figure 4 a schematic is cut by the boundary region of a metall-glass front composite slab (1) with a welded means of mounting (8) and a read-clearing away L-element (25) represented. The attachment of this L-element (25) effected for example via the attachment system (28) and can be trained by the piece or over the entire lower edge.

From the sun side (5) visible edge of the L-element (25) preferentially black and/or darkly one trains and one notices in such a manner hardly optically disturbing. The area between the windowpane (2) and the LElement (25) can be filled out with a permanent elastic polymere element (26), for example on basis of a two-component silicone or PVB or EH or a EVM or a PU/TPU and such permanent elastic polymers.

In figure 5 a schematic is cut by the boundary region of a GlasMetali Fassadenverbundplatte (1) with a welded means of mounting (8) and a read-clearing away U-element (27) represented. The attachment of this U-element (27) takes place for example via the attachment system (28). The U-element (27) intervenes thereby in a so-called glass Agraffe (29).

Among them becomes more kreissegmentförmiger ground in into a boundary region of the windowpane (2) understood. Such elements (27, 28, 29) can several times at the lower edge of the metall-glass front composite slab (1) arranged to be and be able also edge-laterally or at the upper edge be trained. The gap between the U-element (27) and glass Agraffen grinding (29 in) can be filled out with a permanent elastic polymere element (26), for example on basis of a two-component silicone or PVB or EH or a EVM or a PU/TPU and such permanent elastic polymers.

In figure 6 a schematic is plan view on the boundary region of a metall-glass front composite slab (1) with a read-clearing away U-element (27) and the kreissegmentförmigen ground in the boundary region of the windowpane (2) represented. In principle ground in also rechteckförmig with appropriate radii trained to be and can for example over the entire glass edge be trained and the read-clearing away and/or securing UElement (27) can can be trained by the piece or across the entire length of the glass edge be led.

The figure 7 shows the arrangement diagram of the execution represented in figure 1, where it is recognizable that the metal-sheet metal-lateral Agraffe 9 with a vertical and inward arranged thigh seizes over an assigned paragraph of the front-laterally arranged hanging up rail 10 and that the height adjustmenting is made by an adjustment screw 30 between the Agraffe 8 and the front-lateral hanging up rail 10. Furthermore the figure 7 shows that for the definition of the connection a fixing screw 31 is intended, which into an assigned tapped hole 14 (see figure 1) is screwed in into the Agraffe 9 and away with their pin-lateral end at a vertical section of the front-lateral hanging up rail 10 pushes and specifies there.

The attachment of the front-lateral hanging up rail 10 is made in the remark example shown by a peg screw, which is represented generally as front attachment 15 in figure 7.

In figure 1 for this a front attachment solvable formed over screws is shown in contrast, whereby two bent l-sections are connected by a screwed joint.

The kind and execution of the attachment of the front-lateral hanging up rail at the front 16 can be changed therefore within wide limits.

The figure 7 shows the advantage of the solution according to invention that the punctiform, pin-like means of mounting 8 in arbitrary distances can be welded wide on the back of the Metallbleches 4, so that a favorable, wide connection of the Metallbleches 4 with the front 16 can take place. With the state of the art only in each case edge-lateral connections between the Metallblech 4 and the front 16 were shown, what is connected with a substantially worse load transfer.

As a result of the wide load transfer over arbitrary on the back of the Metallbleches of 4 arranged means of mounting 8, which are solvable or firmly with one another connected with assigned Agraffen 9, in accordance with the advantage arises that high loads and bending moments will transfer lying over a number from vertical and a mutual distance fastening spots from each other taking one above the other favorably to the front 16 can.

The figure 8 shows the back opinion of the representation in figure 7, where it is recognizable that in a horizontal line beabstandet in each case Agraffen 9, which is connected with the pin-like means of mounting 8 in each case in a hanging up rail 10 from each other arranged are hung up and there over the mentioned screws 30, 31 adjustable and definable is.

The figure 9 shows a preferential execution form according to invention used of a pin welding gun. This plant works according to the condenser unloading principle. The pin-like means of mounting 8 are welded after the invention over a bit ignition with the back of the Metallbleches 4.

In order to make the necessary energy available, a bank of capacitors is charged over an automatic control loop. The welding current is then activated over an achievement thyristor. Over the pin welding gun, the pin-like means of mounting 8, the electrically conductive Metallblech 4 and the earth cable are closed the electrical cycle.

In figure 10 the welding procedure with the gap welding gun for the stud welding with bit ignition, represented in figure 9, is represented. By the short welding time (in relation to the contact welding method) such a pin welding gun for welding very thin-walled workpieces is suitable and makes aluminium weldings possible without inert gas. With the suitable attitudes also all other materials can be welded beside aluminum.

In figure 10 the temporal operational sequence a gap 42 of exhibiting screw mounting 38 is represented.

First the screw mounting 38 is pushed into the pin owner of the welding gun 34. Then the welding gun 34 with all pistol feet 37 on the Metallblech 4 is put on. By pressures of the start button 39 the screw mounting 38 is taken off from lifting magnets (against a compression spring). This is represented in figure 10 in the second illustration from left.

With the reaching of the end position the lifting magnet is switched off and the welding current is switched on. The screw mounting 38 is accelerated now by the compression spring in the direction of the Metallblech 4. With the impact of the ignition point 22 the surface of the Metallbleches 4 a large discharge current flows. Thus evaporates the ignition point and it constructs itself an arc, which the front surface of the screw mounting 38 and a place equal in size to the workpiece (Metallblech 4) melts on. Subsequently, the screw mounting immerses 38 into the melt 43, that arcs expires and the melting bath rigidly. This welding procedure lasts approx. 1 to 3 LV.

Immediately after it the pistol can be perpendicularly taken off and again equipped.

The more highly the Abhub after figure 10 in the second illustration from left, the more largely is the welding duration. The Abhub can be adjusted from 0 to 5 mm steplessly. The wall thickness of the Metallbleches 4 can amount to minimum 0.5 mm, in order to ensure a normal welding.

During this execution it can be done without an inert gas because the welding duration is so short that no danger exists that the welded joint oxidizes during the short welding time.

Instead of a screw mounting 38, which is represented in the remark example after figure 9 and, also different welding elements (welding pins) can be used, like e.g. Internal thread sockets, pins and other pin-like welding elements of different dimensions materials. All welding elements should exhibit an ignition point 22.

Zeichnunasleaende 1st composite slab 2nd windowpane 3rd detention sandwich foil 4th Metallblech 5th sun (front exterior) 6th coating (outside) 7th coating (inside) 8th means of mounting 9th Agraffe (piece of bracket section) 1 0. Hanging up rail H.Abwinkelung 12.Verrundung 13. Tapped hole (for 30) 14. Tapped hole (for 31) 1 5th front attachment 1 6th front (wall) 17. Welded joint 18. Means of mounting (like 8) 19. Means of mounting (like 8) 20. Means of mounting (like 8) 21. Flange beginning (of 8) 22. Ignition point 23. Front surface 24. Glass projection 25. read-clearing away element (bracket section) 26. permanent elastic element 27. read-clearing away element (bracket section) 28. Means of mounting 29. Glass Agraffe 30. Adjustment screw (for 13) 31. Fixing screw (for 14) 32. Mother (of 8) 33. Disk (of 8) 34. Welding gun 35.Stromleitung 36. Control cable 37. Pistol foot 38. Screw mounting 39. Start button 40. Direction of arrow 41. Arrow direction 42. Gap 43. Melt