EP0121101A2 - Roof structure for covering - Google Patents

Abstract

1. Roofing means for roofing a given surface, particularly for forecourts, conservatories, pergolas or house entrances, with a grid-like support structure, industrially prefabricated beams (10, 11, 12) matched to given girder field dimensions are provided which rest on vertical supports or wall brackets, the beams (10, 11, 12) are constructed as bonded beams or girders having two symmetrically arranged sheet steel profiles (15, 16), between which are arranged L and T-shaped connecting plates (19), at least in the vicinity of intersections, the sheet steel profiles (15, 16) and connecting plates (19) being screwed together by means of assembly screws (20, 21), characterized in that the connecting plates (19) are made from light metal and that the sheet steel profiles (15, 16) have angular edge regions in the upper part of the beam (10, 11, 12) forming a substantially V-shaped groove, into which project the edges of dome-shaped roof membrane elements (22), which in each case cover a grid field (13).

Description

The invention relates to a roofing arrangement for roofing over a predeterminable area, in particular for forecourts, winter gardens, pergolas or house entrances, with a grid-like supporting structure.

Various attempts have been made to cover a certain area such as a forecourt, a winter garden, a pergola or a house entrance. However, all of these attempts have not led to fully satisfactory results. Known canopies are either not sufficiently flexible in their dimensions and / or require a considerable amount of work at the construction site.

The invention has the object of providing a Canopy _- to create arrangement of the type specifically mentioned above, which is particularly flexible to adapt in size to the conditions of the respective applications and can be while at the same time created in an extremely economical manner.

To achieve this object, the invention provides that industrially prefabricated supports are provided which are matched to a predetermined grid field grid dimension and which rest on vertical supports or wall brackets, that the supports are designed as composite supports which have two steel sheet profiles arranged symmetrically to one another, between which at least in the area of intersections, L- and T _- shaped connections are arranged light metal connecting plates, that the steel plate profiles and the light metal connecting plates are screwed together by connecting screws and that the steel plate profiles with angled edge areas in the upper part of a Carrier form an essentially V-shaped channel, into each of which the edges of dome-shaped roof skin elements protrude, each of which covers a grid field.

According to the invention, the main advantage is achievable that on the one hand a grid dimension with relatively small grid fields can be provided, so that individual requests regarding the dimensions can be taken into account without any problems, while on the other hand practically completely prefabricated components can be used so that the workload is particularly low at the construction site. This not only results in the further advantage that a canopy designed according to the invention can be completed on the construction site in a very short time, this can also be done in an amazingly economical manner.

A particularly preferred embodiment of the arrangement according to the invention provides that base girders are provided which have a length which corresponds to the edge length of a lattice field, wherein at least one base girder and a crossbeam running at right angles meet in each lattice corner point.

Furthermore, it can preferably be provided that double base beams are provided which overlap two grid fields and which in their central region, in which a notch is provided at the upper edge for an intersection or for a T-shaped connection of a cross beam extending transversely to the base beam.

The use of base supports and double base supports further adapts to individually desired dimensions. It has been shown that a horizontal, self-supporting, lattice-like support structure can be created with a grid dimension of 300 millimeters, and that from completely prefabricated components that can be adapted to practically all dimensional requirements.

A particularly advantageous possibility for producing the notch results from the fact that the steel sheet profile for producing the notch has a keyway serving as a predetermined breaking line or an elongated hole.

Here, an arrangement has proven itself that provides that the keyway is located in the lower part of the angled area to form the V-shaped channel.

The V _- shaped gutter proves to be very well suited for removing rainwater and, according to an advantageous further development of the subject of the invention, is created in that the edge region which is angled to form the V-shaped gutter is angled by an angle of approximately 45 degrees with respect to a vertical main carrier surface is.

Both the bending stiffness and the buckling strength of the beams are influenced particularly favorably in that the steel sheet profile of the beam in its lower region has an angled region to one side, which is angled in the same direction as the upper edge region, and that the lower edge of the angled area is bent in the opposite direction to the above-mentioned bend in such a way that a bulge and a lower flange arranged essentially at right angles to the main carrier surface is formed, the edge of which is arranged in the plane defined by the main carrier surface.

It can preferably be provided that the steel sheet profiles are cold-formed profile parts.

The light metal connecting plates arranged between the steel sheet profiles can of course also be designed as extruded profiles or as cast parts without leaving the scope of the invention. It is also used in the present Description of deposited material information mainly to illustrate the subject matter of the invention, and other materials with sufficient strength can be used within the scope of the invention.

In practice, an arrangement has proven itself which is characterized in that the steel sheet profile has a total height of approximately 180 mm, of which the upper angled edge region is approximately 30 mm, the main carrier surface is approximately 100 mm and the lower angled region is approximately Take 50 mm.

It can be provided that the steel sheet profile has a sheet thickness of about 2.5 mm.

A very advantageous further development of the subject matter of the invention is further characterized in that the steel sheet profile in the main carrier surface arranged vertically in the installed state has horizontally extending elongated holes in the upper half of each of which are arranged at grid intervals.

The elongated holes fulfill an advantageous double function because, on the one hand, they serve for holding clips for roof skin elements to engage in these elongated holes, while the further function of these elongated holes is that they greatly simplify the release of the double base beams. To produce a notch, it is only necessary to make an incision transversely from above at the two ends of an elongated hole from the edge of the carrier to the elongated hole in order to produce the desired notch.

Furthermore, according to a particularly advantageous embodiment of the subject matter of the invention, it can be provided that the steel sheet profile on the main carrier surface and on the lower flange at a distance from one another, which corresponds to a predeterminable fraction of the grid dimension, have rows of punchings. An advantageous embodiment further provides that two rows of punchings are provided on the main carrier surface, which mark the bores for the connecting screws and the cutting lengths for the carriers.

The markings serve on the one hand as a unit of measurement for cutting the beams to length and on the other hand for creating the drilling pattern without a drilling template for the beam connections.

In a manner similar to the elongated holes, the keyways provided in the longitudinal direction of the carriers in an alternative embodiment are used to form the notches. This is because a portion of the carrier can simply be broken out after sawing in the direction transverse to the keyway from the edge of the carrier to the keyway.

For stiffening the beams, it can also be preferably provided that the connecting plates have the shape of an inverted "T" in cross-section, the transverse legs of which are arranged within the bulge and are screwed to the horizontal lower flange.

In order to join base supports or double base supports with their ends to each other, a particularly advantageous embodiment of the subject matter of the invention provides that between the ends of base supports or double base supports a cross-knot element is arranged, which consists of a one-piece, cross-beam-shaped light metal body equipped with fork-like double flanges exists, between whose double flanges the light metal connecting plates are arranged.

The arrangement can advantageously be such that each double flange has two bores arranged one above the other, which have corresponding openings in the light metal

Connecting plates are aligned and of which the lower opening is designed as a hole with the same diameter as the lower hole in the double flange and the upper opening is an elongated hole extending in the horizontal direction, and that between the front edges of the light metal connecting plates an eccentric cam rotatable in the cross-knot element is arranged, on the circumferential surface of the front edges of the light metal connecting plates can be supported.

Such an arrangement can preferably be further developed in that the eccentric cam is polygonal in cross section, two mutually parallel surfaces being provided at the same distance from the fulcrum.

With such an arrangement, an elevation can be carried out on each of the cross nodes, namely by lifting the relevant cross node area slightly by means of an assembly support, the lower connecting pins acting as a joint and the upper connecting pins each being able to carry out a horizontal movement in an elongated hole, after which the end faces the carrier connections are held apart by the eccentric cam.

In order to ensure a good seal of the roofing according to the invention against rainwater, it can preferably be provided that a permanently elastic sealing tape is arranged between the edges of roof skin elements projecting into the V-shaped channel.

The assembly is considerably facilitated in that a double-sided adhesive tape is arranged along the edges of the roof skin elements, which protrude into the V-shaped channel, and is covered with protective tape that can be removed for assembly.

It is also preferably provided that the edges of the dome-shaped roof skin elements protruding into the V-shaped groove are held by elastic retaining clips which are attached to the carriers attack.

According to an advantageous embodiment of the subject matter of the invention, these retaining clips are characterized in that the retaining clips each have V-shaped cantilevers in their upper region which extend over the edges of the roof skin elements and have hooks engaging in openings in the carriers in their lower region.

The arrangement is advantageously made such that the hooks engage in elongated holes which are arranged in the horizontal direction in the main carrier surfaces.

In order to also design the roof according to the invention in a particularly advantageous manner, provision can furthermore preferably be made for a mount which can be attached to a carrier and which has an upper and a lower rail for attaching a vertical edge covering, into which a practically arbitrarily designed decorative covering can subsequently be inserted .

This arrangement is preferably characterized in that the lower rail has an upwardly open U-shaped channel.

In order not only to be able to attach a particularly appealing panel in the outer edge regions, but also to be able to advantageously attach a decorative panel under the roof structure, a further embodiment of the subject matter of the invention provides that the lower rail has a further U-shaped portion for receiving a horizontal panel. Has rail, in which the "U" is arranged horizontally.

Overall, according to the invention, a canopy can be built to a very large extent to practically any desired dimensions and optical design, which on the one hand takes advantage of the advantages of industrial series production in economic terms and at the same time offers free design options with regard to the optical-aesthetic design.

• Fig. 1 einen schematischen Grundriß einer erfindungsgemäßen Überdachungs-Anordnung,
• Fig. 2 einen schematischen Aufriß eines Doppelbasisträgers mit einer Ausklinkun^g,
• Fig. 3 eine Seitenansicht des in der Fig. 2 dargestellten Doppelbasisträgers,
• Fig. 4 eine teilweise im Schnitt veranschaulichte Darstellung eines in der Fig. 5 gezeigten Kreuzknotenbereichs, wobei der Schnitt entlang der-Linie IV-IV in der Fig. 5 geführt ist,
• Fig. 5 einen schematischen Grundriß eines Kreuzknotenbereichs,
• Fig. 6 einen Vertikalschnitt durch eine V-förmige Rinne,
• Fig. 7 eine schematische Seitenansicht eines Stahlblech-Profils,
• Fig. 8 einen Schnitt entlang der Linie VIII-VIII in der Fig. 7,
• Fig. 9 einen schematischen Aufriß eines Querträger-Anschlusses im Teilschnitt,
• Fig. 10 einen schematischen Grundriß eines Querträger-Anschlusses nach der Darstellung in der Fig. 9,
• Fig.11 in einem schematischen Aufriß den Endbereich eines Basisträgers und
• Fig. 12 in einem Vertikalschnitt eine Halterung für eine Zierverblendung.

The invention is described below, for example with reference to the drawing; in this show:

• 1 is a schematic plan view of a roofing arrangement according to the invention,
• Fig. 2 is a schematic elevation ^{g of} a double-base carrier with a Ausklinkun,
• 3 shows a side view of the double base support shown in FIG. 2,
• FIG. 4 shows an illustration, partly in section, of a cross-knot region shown in FIG. 5, the section being taken along the line IV-IV in FIG. 5,
• 5 shows a schematic plan view of a cross node area,
• 6 is a vertical section through a V-shaped channel,
• 7 is a schematic side view of a steel sheet profile,
• 8 shows a section along the line VIII-VIII in FIG. 7,
• 9 is a schematic elevation of a cross member connection in partial section,
• 10 is a schematic plan view of a cross member connection as shown in FIG. 9,
• 11 shows a schematic elevation of the end region of a base support and
• Fig. 12 in a vertical section a holder for a decorative panel.

1 illustrates in a purely schematic floor plan the basic grid field construction of a roof according to the invention. Wall brackets 43 are attached to a wall, on which the roof construction according to the invention rests on one side, while the other side is supported on supports 42. The roof structure according to the invention is self-supporting between the wall brackets 43 and the supports 42.

Base supports 10 or double base supports 11 are arranged between the supports 42 on the one hand and in the area between the supports 42 and wall brackets 43, with cross members 12 being present between the double base supports 11.

A square grid field 13 is formed by four carriers each. In a preferred embodiment of the roof according to the invention, such a grid field 13 can have a grid dimension of 30 cm.

The arrangement illustrated in FIG. 1 can be created from horizontal, self-supporting, grid-like support elements. The covering is carried out by roof skin elements, each of which covers a grid area 13. Depending on the intended use, either transparent or opaque roof skin elements can be used. Preferably transparent or translucent dome segments can be used if it is desired that the space under the roof according to the invention be as bright as possible.

In the arrangement illustrated in FIG. 1, a T-shaped connection with a double base support 11 is shown, for example, between two base supports, which are shown in the lower region of FIG. 1, in which a T-piece designed in the manner of a cross-knot element 32 is used becomes. Such a cross knot element with an eccentric cam shown purely schematically in FIG. 1 is explained in more detail below with reference to FIGS. 4 and 5.

Furthermore, FIG. 1 shows node brackets 44 in the central region, which are illustrated in more detail below with reference to FIGS. 9 and 10.

FIG. 1 also shows, for a double base support 11, a notch 14 provided for connecting a cross member 12, which is shown in FIG. 2 with structural details.

Finally, light metal connecting plates 19 are shown purely schematically in FIG. 1, which are provided in the region of intersections and of L and T-shaped connections and are explained in more detail below with reference to the corresponding FIG.

As shown in FIG. 1, there are base carriers 10 and double base carriers 11, which are twice as long as that

Base beam 10, used to accommodate the main payloads. The cross members 12 are used for the cross connection. The supporting structure is supported either on wall brackets 43 or on supports 42.

FIG. 2 illustrates in a schematic elevation a double base support 11 which has a notch 14. The double base 11 is made in a composite construction. It consists of two sheet steel profiles 15 and 16, which are connected and stiffened via a light metal connecting plate 19 arranged between them. The light metal connecting plate 19 is provided in the area of T-shaped connections and in intersection areas, but can extend over a predeterminable area along the support and can also be present continuously in special cases. The weakening of the profile caused by the notching is compensated by the light metal connecting plate 19. A connecting plate in the form of a flat material can be used, which of course can also be produced in any way. 3, an inverted T-profile can also be used as the connecting plate. 3 illustrates the structure of a composite beam used in accordance with the invention. As shown in the drawing, the steel sheet profiles 15 and 16 basically have the same shape, so that only a single profile has to be produced in production. Each steel sheet profile 15 and 16 has an angled area at its upper edge, which in the embodiment illustrated in FIG. 3 is angled by approximately 45 degrees with respect to the main carrier surface. As a result, a V-shaped channel is formed between the two upper angled regions of the steel sheet profiles 15 and 16. The further configuration and the function of this V-shaped channel are explained in more detail below with reference to FIG. 6.

In the lower area, the steel sheet profiles 15 and 16 each have an area exhibited in the same direction as in the upper area, the lower edge of which is bent in the opposite direction to the bulge formed in such a way that an essentially horizontal lower flange is formed. This creates a stiffening bulge in the lower area of the composite beam. A T-shaped light metal connecting plate 19 is arranged between the two steel sheet profiles 15 and 16, as shown in FIG. 3, which is connected to the steel sheet profiles 15 and 16 by means of connecting screws 20 and 21. The T-shaped profile of the light metal connecting plate 19 has holes 30 in its T longitudinal leg, which are shown in more detail in FIG. 2. The connecting screws 20, which hold the composite carrier below the V-shaped channel 18, are passed through the bores 30. The connecting screws 21, which connect the steel sheet profiles 15 and 16 to the T-cross leg of the light metal connecting sheet 19, are passed through the lower flange 23, as can be clearly seen from FIGS. 2 and 3.

A cross node region is described in more detail below with reference to FIGS. 4 and 5. A cross knot element 32, which in a horizontal section basically has the shape of a beam cross and has double flanges 33, is connected to the light metal connecting plates 19 by means of bolts. As shown in FIGS. 4 and 5, light metal connecting plates 19 protrude from two mutually opposite sides into the spaces between the double flanges 33 of the cross node element 32. In the upper region of the cross node element 32 there is between the front sides of the light metal connecting plates which are arranged at a distance from one another 19 an eccentric cam 36 is arranged. In the lower area, both the light metal connecting plates 19 and the double flanges 33 of the cross-knot element 32 are cursed to one another ends and designed as holes 35th In the upper area, in a generally aligned arrangement, 19 elongated holes 34 are provided in the light metal connecting plates 19, while 32 holes 35 are arranged in the double flanges 33 of the cross-knot element. Pins are passed through the bores 35 and the corresponding elongated holes 34. If an elevation is now to be carried out in the area of a cross knot so that the rainwater can run off easily from this area, this can be done in the arrangement according to the invention in the following manner. First, a support is placed under the cross-knot element 32. If this support pushes the cross-knot area slightly upwards, the front edges of the light metal connecting plates 19 can be moved apart in the area of the eccentric cam 36, namely by the bolts being guided in the elongated holes 34, the bolts passing through the holes 35 in the lower region act as a pivot pin. In other words, when the supports are pushed up, the carrier connections in the upper region of the connecting plates are pressed apart, the lower connecting pins acting as a swivel joint and the upper connecting pins being guided in the elongated holes. By appropriate adjustment of the eccentric cam 36, the front edges of the connecting plates 19 can be supported or wedged against one another if the cam surfaces are dimensioned accordingly. The column can then be removed under the cross-knot area. If 36 cam surfaces are provided on the eccentric cam with different distances from the axis of rotation, different elevations can be brought about in this way and fixed by appropriate adjustment of the eccentric cam 36.

6 illustrates in a schematic vertical section the configuration of the V-shaped channel 18. Within the angled upper regions of the steel sheet profiles 15 and 16 protrude the edges of roof skin elements 22 into the V-shaped channel 18. The edges of the roof skin elements 22 are provided with a double-sided adhesive tape 38, which is already attached during manufacture. During assembly, the outer protective layer of such a double-sided adhesive tape 38 is removed so that a sealing tape 37 can be inserted between the edges of the roof skin elements 22, which is firmly and tightly connected to the tapes 38 by an adhesive connection. FIG. 6 also shows a holding clip 25 which has cantilevers 26 which are spread apart in a Y-shape in its upper region and which rest on the double-sided adhesive tapes 38. In its lower region, the holding clip 25 has hooks 27 which are angled outwards and which engage in the elongated holes 34 which are formed in the steel sheet profiles 15 and 16. The elongated holes 34 can be seen in particular from the illustration in FIG. 7. The holding clips 25 can be used at predeterminable distances from one another. At those points where there are no retaining clips 25, a continuous adhesive connection is created between the sealing tape 37 and the double-sided adhesive tapes 38. In the area of the V-shaped gutter, a well-sealed rain gutter is formed on the one hand by the above-described embodiment of the subject matter of the invention, and at the same time the edges of the roof skin elements are firmly anchored with the aid of the retaining clips 25.

FIG. 7 shows the steel sheet profile 15 in a schematic elevation and also clearly shows the elongated holes 34 already mentioned above. 7 also shows the keyway 17, which, according to the above explanations, serves to produce a notch illustrated in FIG. 2, namely by making cuts from above across the keyway 17 and between the cuts remaining edge area is broken out.

Finally, FIG. 7 also shows punchings 28 and 29 which serve on the one hand as a cut-to-length dimension and on the other hand represent a drilling pattern, so that the bores required for making connections can be made without a drilling template and at the same time can be positioned exactly. In this way, both the bores 30 for the connecting screws 20 and the bores 31 for the connecting screws 21 can be made easily and precisely.

8 is the steel sheet shown in FIG. 7. Profile 15 illustrated in a section along the line VIII-VIII, and in this representation the grain 28 in the main support surface as well as the grain 29 in the lower flange 23 are clearly recognizable in their position.

In FIGS. 9 and 10, node brackets 44 with cross members 12 attached thereto, which each run horizontally as shown in FIGS. 9 and 10, are flanged to a double base carrier 11. Such a connection can in principle take place in the area of a notch 14, as illustrated in FIG. 2.

11 illustrates the end region of a base support 10, the connecting plate 19 of which has an elongated hole 34 in the upper region and a bore 35 in the lower region. Furthermore, the bores 30 for the connecting screws 20 as well as the screws 21 inserted into the lower flange 23 of the steel sheet profile are illustrated in FIG. 11. The part of a base support 10 shown in FIG. 11 can in principle be used for connection to a cross-node element, as was shown in FIGS. 4 and 5.

Fig. 12 illustrates an advantageous way to to mount a bracket according to the invention with the aid of connecting screws 20, a holding bracket 41 which can be used to fasten a lower rail 40 by means of fastening screws 45 for the attachment of an edge covering (not shown). The lower rail 40 has an upwardly open U-groove, into which the lower edge of a decorative cover (not shown) can be inserted. The upper edge of such a decorative veneer, which is to be arranged vertically in principle, can be held in an inverted U-groove which is formed on an upper rail 39, which is fastened to the steel sheet profile 16 in the region of the V- by means of fastening elements such as screws. shaped groove 18 is attached. Thus, in the embodiment of the subject matter illustrated in FIG. 12, two U-grooves aligned with one another are formed, into which a decorative cover designed according to the requirements of the respective application can be inserted or inserted.

The lower rail 40 has, as shown in FIG. 12, a further U-shaped groove, the opening of which is arranged horizontally, so that a horizontal facing can be inserted into the corresponding U opening.

Claims (20)

1. Roofing arrangement for roofing over a predeterminable area, in particular for forecourts, winter gardens, pergolas or house entrances, with a grid-like supporting structure, characterized in that a) that industrially prefabricated supports (10, 11, 12) are provided, which are arranged on vertical supports or wall brackets, b) that the supports (10, 11, 12) are designed as composite supports which have two steel sheet profiles (15, 16) arranged symmetrically with respect to one another, between which at least in the region of intersections, L- and T-shaped connections, light metal connecting sheets (19) are arranged, c) that the steel sheet profiles (15, 16) and the light metal connecting plates (19) are screwed together by connecting screws (20, 21) and d) that the steel sheet profiles (15, 16) with angled edge regions in the upper part of a carrier (10, 11, 12) form a substantially V-shaped groove, into which the edges of dome-shaped roof skin elements (22) protrude , each covering a grid field (13). 2. Arrangement according to claim 1, characterized in that base supports (10) are provided which have a length which corresponds to the edge length of a grid field (13), with at least one base support (10) and one at a right angle to each grid corner point running crossmember (12) meet. 3. Arrangement according to claim 1, characterized in that double base supports (12) are provided, which overlap two grid fields (13) and which in their central region, in which for a crossing or for a T-shaped connection of a transverse to the base support (10 ) extending cross member (12) at the upper edge a notch (14) is provided. 4. Arrangement according to claim 3, characterized in that the steel sheet profile (15, 16) for producing the notch (14) has a serving as a predetermined breaking line keyway (17), which is in the lower part of the to form the V-shaped groove (18) angled edge region befin- _'det. 5. Arrangement according to one of the preceding claims, characterized in that the angled edge region to form the V-shaped channel (18) is angled by an angle of approximately 45 degrees with respect to a vertically arranged main carrier surface. 6. Arrangement according to one of the preceding claims, characterized in that the steel sheet profile (15, 16) of the carrier (10, 11, 12) has in its lower region an angled to one side, which in the same direction as the upper Edge area is angled, and that the lower edge of the angled area is bent in the opposite direction to said bend in such a way that a bulge and an essentially perpendicular to the main carrier surface arranged lower flange (23) are formed, the edge of which is defined by the main carrier surface Level is arranged. 7. Arrangement according to one of the preceding claims, characterized in that the profiles are rolled profile parts. 8. Arrangement according to one of the preceding claims, characterized in that the steel sheet profile (15,16) in the vertically arranged carrier main surface in the upper half of each arranged in the grid spacing, horizontally = extending elongated holes (34), in which Engage the retaining clips (25). 9. Arrangement according to one of claims 6 to 8, characterized in that the steel sheet profile (15, 16) on the main carrier surface and on the lower flange (23) at a distance from one another which corresponds to a predeterminable fraction of the grid dimension, rows of punchings (28), which mark the holes (30,31) for the connecting screws (20,21) and the cutting lengths for the beams. 10. Arrangement according to one of claims 6 to 9, characterized in that the connecting plates (19) in cross section have the shape of an inverted "T", the cross leg is arranged within the bulge and screwed to the horizontal lower flange (23). 11. Arrangement according to one of the preceding claims, characterized in that between the ends of base supports (10) or double base supports (11) a cross node element (32) is arranged, which consists of an integrally formed, bar cross-shaped, with fork-like arranged double flanges ( 33) equipped light metal body, between whose double flanges (33) the light metal connecting plates (19) are arranged. Arrangement according to claim 11, characterized in that each double flange (33) has two bores (30, 30) arranged one above the other, which are aligned with corresponding openings (24, 35) in the light metal connecting plates (19) and of which the lower opening is designed as a bore (35) with the same diameter as the lower bore (30) in the double flange (33) and the upper opening is an elongated hole (24) extending in the horizontal direction, and that between the front edges of the light metal connecting plates (19 ) an eccentric cam (36) rotatable in the cross-knot element (32) is arranged, on the circumferential surface of which the front edges of the light metal connecting plates (19) can be supported. 13. The arrangement according to claim 12, characterized in that the eccentric cam (36) is polygonal in cross section, two mutually parallel surfaces being provided at the same distance from the fulcrum. 14. Arrangement according to one of the preceding claims, characterized in that a permanently elastic sealing tape (37) is arranged between the edges of roof skin elements projecting into the V-shaped groove. 15. The arrangement according to claim 14, characterized in that along the edges of the roof skin elements which protrude into the V-shaped channel (18), a double-sided adhesive tape (38) is arranged and covered with a detachable protective tape for assembly. 16. Arrangement according to one of the preceding claims, characterized in that the edges of the dome-shaped roof skin elements (22) projecting into the V-shaped groove (18) are held by elastic holding clips (25), the hooks (27) of which are in elongated holes ( 34) which are arranged in the horizontal direction in the main carrier surfaces of the carriers (10, 11, 12). 17. The arrangement according to claim 16, characterized in that the holding clips (25) each have in their upper region V-shaped, the edges of the roof skin elements overlapping boom (26) and in their lower region in openings (34) in the Have carriers (10, 11, 12) engaging hooks (27). 18. Arrangement according to one of the preceding claims, characterized in that a mount is provided on a carrier (10, 11, 12) which has an upper and a lower rail (39 or 40) for attaching a vertical edge covering which can subsequently be used with a practically arbitrarily designed decorative cover. 19. The arrangement according to claim 18, characterized in that the lower rail (40) has an upwardly open U-shaped channel. 20. Arrangement according to one of claims 18 or 19, characterized in that the lower rail (40) has a serving for receiving a horizontal veneer further U-rail, in which the "U" is arranged horizontally.

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