DE202010014945U1 - Frame scaffolding for holding and fixing objects on a roof of a building - Google Patents

Abstract

Frame support structure (1) for receiving and fastening objects, in particular solar modules (2, 2a, 2b, 2c) or satellite receiving devices, on a roof of a building, in particular a flat roof (3), with a base part (13 ), a support part (12) arranged at an angle (α) to the base part (13) for the object (2, 2a, 2b, 2c), at least one connecting part connecting the support part (12) and the base part (13) to one another ( 14, 15) and with a fastening device (17) for fastening the framework (1) on the roof (3), characterized in that the fastening device comprises at least one plate element (17) for fastening the framework (1) by means of a welded connection.

Description

The invention relates to a frame support for receiving and fixing objects, in particular solar modules or satellite receiving devices, on a roof of a building, in particular a flat roof, with a can be arranged on the roof base part, arranged at an angle to the base part bearing part for the object at least one connection part connecting the support part and the base part to one another and with a fastening device for fastening the framework on the roof.

Frame scaffolds for receiving objects, in particular solar modules, are known in the art. For example, this describes WO 85/04241 A1 a planar solar collector, which is elevated at an angle to a bottom surface. For this purpose, a frame support frame is provided with two beams arranged parallel to one another and a prismatic frame support frame with a bearing part arranged at an angle to a base part, on which the solar module is fastened.

The in the US 4,138,993 described solar modules are also mounted on a prismatic frame scaffold, which in turn is mounted on a substructure by screwing.

According to the US 4,161,169 A are fasteners of different lengths mounted on a plane which are connected by a convector of a modular solar collector assembly or which is fixed thereto. The fasteners are mounted on a base plate, for example by soldering or welding. The provided in this form with fasteners solar panels can be arranged according to this document of the prior art in greenhouses instead of upper glass sheets.

Thus, the frame scaffolds for receiving and fixing solar modules are usually attached by screwing on a floor or possibly a roof. However, this proves to be of little advantage, especially when mounted on flat roofs. Furthermore, the material commonly used for the frame scaffolds, proves to be quite heavy and therefore less suitable for use on flat roofs.

The present invention is therefore an object of the invention to provide a frame frame improved in this respect for receiving and fixing objects on a roof of a building, in particular a flat roof.

The object is achieved by a frame framework according to the preamble of claim 1, characterized in that the fastening device comprises at least one plate member for fastening the frame support frame by a welded joint. Further developments of the invention are defined in the dependent claims.

As a result, a framework framework, in particular for receiving and securing solar modules or satellite reception devices, is provided on flat roofs, which are generally provided with a bituminous membrane, which makes it possible to fasten the framework framework by welding. Instead of fastening with dowels and screws, as is customary otherwise when mounting on roofs, here a welding of the plate element on the bituminous membrane of the flat roof done. As a result, the bituminous membrane is not affected, as usual, by openings due to the screwing of the frame framework on the roof in their tightness, but it can rather be done a particularly stable and tight attachment of the frame support on the flat roof.

For the welding process for welding the frame framework or the plate element on the bituminous membrane of the flat roof, a welding band or a welding path can be provided. This or this superimposed over the plate member at least in an edge region and also covers a part of this surrounding flat roof or arranged thereon bitumen sheet. About such a sweatband or such a welding line, which is part of the fastening device and which may also consist of plastic, a full-surface and therefore secure attachment of the frame support structure can be done on a flat roof. When providing a welding track made of plastic, this is usually welded by a cold welding process, whereas a bituminous sheet is usually welded by hot welding. The plate element may be pre-treated prior to welding or welding in order to allow a faster and better connection to the welding path.

The framework can be made of aluminum. When trained in aluminum, it is lightweight and therefore particularly well suited for the Auflagerung on flat roofs. Especially with attacking loads, the provision of a framework framework made of aluminum proves to be very suitable because aluminum is a stable material on the one hand, on the other hand is relatively soft and thus damage even greater burdens of wind, snow, ice can endure. By comparatively small Weight proves to be a frame framework made of aluminum thus just when used on a flat roof as advantageous, so that possibly even more solar modules can be positioned on this than would be possible with conventional frame scaffolds.

The frame framework is advantageously constructed like a framework, wherein the Auflagerungsteil and / or the base part are formed as profile elements. The object, in particular of the solar module, thus not stored on a full-surface plate, but on rails, so that weight can be saved compared to the solutions of the prior art. Further advantageously, the Auflagerungsteil is end provided with at least one mounting rail or a beam for attaching the objects, in particular solar modules or satellite receiving devices or providable. The mounting rails here may be, for example, H-profile strips or hollow sections with an H-profile. The mounting rails are advantageously also made of aluminum, where they may be formed as extruded aluminum profile. An attachment to the Auflagerungsteil of the frame framework can be done for example by screwing or possibly also by welding. For the provision of a screw, the mounting rail can be provided in accordance with undercuts or other supporting a holding screws and / or nuts facilities.

The base part of the frame framework is further advantageously arranged on the at least one flat plate element. This is fixed on the roof, in particular flat roof. Plate element and base part can in turn be connected to one another by welding, wherein the plate element advantageously also consists of aluminum. In this way, it is also possible to provide a large support surface in the region of the attachment to the roof, however, to form the base part and the support part as profile elements, for example as square hollow sections, thus with a comparatively smaller support surface. The sufficient stability of the frame framework is provided by the provision of the profile elements, wherein the profile element of the Auflagerungsteils and the profile element of the base part can be connected to each other via different length connecting elements, which allow the desired angle α of the Auflagerungsteils relative to the base part. For example, an angle α of 22 ° can be set or provided here.

Instead of providing square profiles and any differently configured profile tubes or profiles for the frame framework can be used.

The plate element may for example have a material thickness or height of 2 to 6 mm, in particular 3 mm. For the installation of a solar module is also a dimension of the plate element of about 1200 × 200 mm is suitable, with other dimensions are possible. The welding path, for example elastomer bitumen welding track, for fastening the frame support frame in the region of its plate element on a roof, in particular a flat roof, may in this case have dimensions of 500 × 1,800 mm, for example, so that the plate element can be securely fastened to the roof.

Instead of attaching solar modules, the framework is also suitable for mounting satellite receivers or other items on the roof of a building.

For a more detailed explanation of the invention, an embodiment of this will be described in more detail below with reference to the drawings. These show in:

1 a side view of an embodiment of a frame framework according to the invention with attached solar module,

2 a plan view of the frame framework according to 1 , and

3 a plan view of a section of a flat roof with parallel frame frameworks with solar modules.

1 shows a side view of a frame scaffold 1 for receiving and fixing a solar module 2 , For fixing the solar module 2 on the frame framework 1 has this one with mounting rails 10 . 11 provided uprising part 12 on. The Auflagerungsteil 12 is at an angle α to a base part 13 arranged. The angle α can be, for example, 22 ° in order to be able to capture sunrays particularly well over the solar module.

Around the Auflagerungsteil 12 opposite the base part 13 to arrange α at the desired angle, are two connecting parts 14 . 15 arranged between the two. The first connection part and the second connection part are respectively spaced from the two ends of the base part 13 attached to this and also under the Auflagerungsteil 12 , also with distance to its ends. The first connection part 14 is longer than the second connecting part 15 designed to set the desired angle α. This can also be an amount other than 22 °, if this proves to be useful in the respective application. in this connection Then, the respective aspect ratio of the first and second connection part is varied according to each other.

The two connecting parts 14 . 15 , the base part 13 as well as the Auflagerungsteil 12 are each designed as hollow profiles made of aluminum to provide a lightweight construction possible. In principle, however, the use of solid material would be possible, if this proves to be advantageous or useful in an application.

The as a substructure for fixing the solar module 2 on the bedding part 12 end arranged two mounting rails 10 . 11 are arranged transversely to its longitudinal extent, in particular at an angle of 90 ° to the longitudinal extent thereof. They extend between two adjacent frameworks 1 as well as the top view of a section of a flat roof 3 with frame frameworks arranged thereon 1 as well as solar modules 2 can be removed. The mounting rails 10 . 11 are formed as hollow profiles with an H-shaped cross-section. In principle, other profile shapes are possible, wherein the H-shaped design with projecting strip areas for engaging behind screws or sliding blocks for mounting on the solar module and Auflagerungsteil 12 turns out to be advantageous. It is also possible, the mounting rails 10 . 11 on the top 16 of the Auflagersteils 12 to be secured by welding. By providing mounting rails and Auflagerungsteil aluminum suitable welding methods, in particular the MIG welding process.

For fixing the frame framework 1 on the flat roof 3 serves a plate element 17 , This is formed relatively large compared to the hollow profile elements of Auflagerungsteils, the base part and the first and second connecting part. Over the plate element is thus a large-scale Auflagerung the frame framework 1 on the flat roof 3 possible, so that here a large-scale distribution of forces and loads, for example, wind, snow and ice loads is possible. For fastening the plate element on the flat roof, for example, a welding path 18 used as seen in the plan view 3 is indicated. This is larger in size than the plate element 17 dimensioned so that a very good attachment in all directions on the flat roof or on its bituminous sheet is possible. In the frame framework introduced forces can be particularly well derived over a large area. Just by arranging the solar modules at a distance from the flat roof or at an angle to the flat roof, large forces can attack on one side of the frame framework. However, these can be intercepted very well by the particularly advantageous dissipation of the forces over a large area and thus an unwanted tearing of the frame frameworks from the flat roof or its surface over it can be avoided.

In the embodiment of the frame framework 1 according to 1 - 3 the Auflagerungsteil, the base part and the two connecting parts are formed as Vierkanthohlprofile. However, it is also possible to use any other shaped profile tubes here. The respective base part is on the plate element 17 fastened by welding in particular. If this is possible from the shape of the profile tube forth, the base part 13 be formed arbitrarily. Because the solar panel anyway on the mounting rails 10 . 11 can be attached, also the Auflagerungsteil 12 any other shape than that in the 1 - 3 Having shown square tube profile shape.

Basically, it would be an alternative to those in the 1 - 3 shown embodiments of frame frameworks also possible, these without connecting mounting rails 10 . 11 provided and rather to fix the solar modules directly to the frame trestles via an otherwise connecting device or fastening device.

As in particular the top view of the frame framework 1 according to 2 can be removed, the plate member has 17 no rectangular shape, but a rectangular shape with chamfered corners on. This can damage the welding track 18 in the corner areas 170 . 171 . 172 . 173 of the plate element 17 be avoided, which could otherwise be caused by the action of a load on this by unilateral lifting of these corner regions. As an alternative to the chamfering of the corner regions, curves can also be provided there in order to achieve a corresponding protection for the welding path. Basically, it is also possible the corner areas 170 - 173 in the usual form with a right-angled corner, thus forming the plate element in a rectangular shape.

The plate element 17 is formed flat compared to the dimensions of the square tube sections of the base part, the Auflagerungsteils and the two connecting parts. For example, the plate element has a height of 3 mm, in comparison, for example, to square tube profiles with 40 × 40 mm. The plate element may also have dimensions of, for example, 200 × 1240 mm, wherein, like 3 can be removed, this is the provision of a welding line 18 With dimensions of 500 × 1,800 mm, a sufficiently large attachment to the flat roof 3 to allow and thus a large distribution of Forces during loading of the framework in operation. The top view in 3 can also be seen that two parallel with each other spaced frame frames 1 connected by mounting rails and on this - according to the embodiment in 3 - three solar modules 2a . 2 B . 2c can be arranged side by side and parallel to each other. The distance a of two frame frameworks can here, for example, slightly less than twice the width of a solar module 2 be, for example, at a width of a solar module of 808 mm be about 1,600 mm. The dimensions of the welding path are advantageously selected so that the welding path is longer than the solar module, but narrower than this, wherein the solar module applied to the frame support frame is then arranged, for example, approximately centrally on the frame support frame or slightly offset with respect to its central axis to this. In each case, the solar module projects beyond the width of the welding path in terms of its width 18 , as in 3 to see. Basically, it is of course also possible to make the welding path even wider, this entails higher costs and already a narrower welding path, as exemplified in 3 is shown for the secure attachment of the frame scaffold 1 on the flat roof 3 sufficient.

As a welding track, for example, an elastomer bitumen welding line can be used, such as the under the name SOPRALENE FLAM 180 EN dark brown or SOPREMA PYE-PV200 S5 offered welding line of SOPREMA-KLEWA GmbH, using a suitable burner over the entire surface of plate element and part of the flat roof is welded.

For the frame framework or its individual elements are various aluminum alloys, eg. AlMgSi0,5-F22, AlMg3-F25 and in particular for the mounting rails AlMgSi0,5-F25. Other aluminum alloys can also be used here.

In addition to the embodiments of frame trusses described above and shown in the figures, numerous further can be formed in which each of the frame scaffolds at least one plate member for securing the frame support frame by a welded connection on a (flat) roof and in particular consists of aluminum.

LIST OF REFERENCE NUMBERS

1

Frame shoring

2

solar module

2a

solar module

2 B

solar module

2c

solar module

3

flat roof

10

first mounting rail (beam)

11

second mounting rail (beam)

12

Onlay part

13

base

14

first connection part

15

second connecting part

16

Top of 12

17

panel member

18

sheeting

19

Bottom of 13

170

first corner area

171

second corner area

172

third corner area

173

fourth corner area

α

Angle Auflagerungsteil opposite base part

a

Distance between two frame scaffoldings

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 85/04241 A1 [0002]
• US 4138993 [0003]
• US 4161169 A [0004]

Claims (9)

Frame framework ( 1 ) for receiving and fixing objects, in particular solar modules ( 2 . 2a . 2 B . 2c ) or satellite receiving devices, on a roof of a building, in particular a flat roof ( 3 ), with a base part which can be arranged on the roof ( 13 ), one at an angle (α) to the base part ( 13 ) arranged Auflagsteil ( 12 ) for the object ( 2 . 2a . 2 B . 2c ), at least one the Auflagerungsteil ( 12 ) and the base part ( 13 ) connecting part ( 14 . 15 ) and with a fastening device ( 17 ) for fixing the framework ( 1 ) on the roof ( 3 ), characterized in that the fastening device at least one plate element ( 17 ) for fixing the framework ( 1 ) by a welded joint. Frame framework ( 1 ) according to claim 1, characterized in that the framework ( 1 ) is scaffold-like, wherein the Auflagerungsteil ( 12 ) and / or the base part ( 13 ) are formed as profile elements. Frame framework ( 1 ) according to claim 1 or 2, characterized in that the Auflagerungsteil ( 12 ) end with at least one mounting rail ( 10 . 11 ) is providable or provided for attaching the objects. Frame framework ( 1 ) according to claim 3, characterized in that the framework ( 1 ), in particular the mounting rail ( 10 . 11 ) consists of aluminum, in particular an extruded aluminum profile is or has. Frame framework ( 1 ) according to one of the preceding claims, characterized in that the base part ( 13 ) of the framework ( 1 ) on the flat plate element ( 17 ) is arranged. Frame framework ( 1 ) according to claim 5, characterized in that the plate element has a height of 2 to 6 mm. Frame framework ( 1 ) according to one of the preceding claims, characterized in that the plate element ( 17 ) chamfered or rounded corner regions ( 170 . 171 . 172 . 173 ) having. Frame framework ( 1 ) according to one of the preceding claims, characterized in that fasteners of different lengths ( 14 . 15 ) as a connecting part for connecting Auflagerungsteil ( 12 ) and base part ( 13 ) are provided. Frame framework ( 1 ) according to one of the preceding claims, characterized in that the fastening device at least one welding band or a welding track ( 18 ).

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