EP2653632A1 - Assembly for fitting roof accessory elements to inclined building roofs - Google Patents

Abstract

The arrangement has an elongated supporting section (16) whose upper end (18) is provided with an angled mounting bracket (20) that is secured at a curved and torsion-stiff connector (30). The connector is fixed on a load-bearing support element (52) via two screws and comprises a long portion (32) that is arranged vertical to a short portion (34) for releasable connection to the bracket. The connector comprises a longitudinal extension that extends parallel to the roof area and perpendicular to a longitudinal extension direction of the support section of an attachment member (14).

Description

The present invention relates to an arrangement for mounting roof accessories such as snow guards or snow guard beams or pipes, steps or other functional parts on an inclined building roof, the at least one fastener with a substantially in the direction of inclination of the ridge in the eaves direction along the roof surface extending, preferably elongated support portion includes. The elongate support portion has at an upper end an angled mounting bracket, which is releasably secured to a connection element. The connecting element also has an approximately parallel to the roof surface extending and receiving on a load support member of the roof substructure or resting there and fixed there longer portion and an approximately perpendicular thereto shorter section for releasable connection to the support member of the mounting bracket.

Various systems for mounting roof accessories elements are known from the prior art. The DE 197 21 518 C2 discloses a system for attaching roofing accessories. With this device, the construction and installation should be reliable and easier, yet allow attachment for various roof accessories, such as snow guards or snow guard bars. In this document, it is disclosed that the device comprises one and the same anchoring device for all types of roof accessory elements, so that the device can be used universally. The anchoring devices are bent into a specific profile shape and processed separately. For this purpose, fastening holes are introduced into the anchoring device in a longitudinal row, so that the roof accessory elements can be screwed to the anchoring device on the roof.

The utility model DE 201 15 088 U1 also discloses a mount for roof accessory elements, such as snow guard barriers on pitched roofs. The holder has a support leg, which is attached by means of a connectable with a roof substructure attachment member on the roof. The attachment member is designed as a holding strap made of sheet steel and ends with the support legs connected. The free end of the tether is formed as a bent tip which is hammered into the wood of the roof substructure, or as a hook that can be hung on a roof batten.

The DE 78 00 625 U1 as well as the DE 203 00 503 U1 reveal a holder for roof accessory elements. The holder has an upper fastening part, which is hook-shaped and, for example, a head end of a roofing element as well as a roof covering element supporting the roof substructure overlaps and runs below the roof substructure in a longitudinal leg. This longitudinal leg has a securing element, which is non-positively and / or positively placed against the roof substructure.

None of the cited documents discloses an arrangement or allows design-related variable distances for the installation of roof accessories, in which structural inaccuracies between the roof structure and the roof accessories elements can be compensated.

The object of the invention is thus to provide an arrangement for mounting roof accessories elements such as snow guards or snow guard beams, steps or other functional parts on a sloping building roof, which can be mounted by a professional just on the roof largely free of play, with structural inaccuracies or Unevenness on the roof should be compensated. In addition, the arrangement of the roof accessory elements must meet all occurring static requirements and be designed for a maximum and safe load dissipation in the roof structure. Furthermore, to be provided with the arrangement, a universal component that allows a diverse and universal use.

This object of the invention is achieved with the subject matter of claim 1. Features of advantageous embodiments will become apparent from the dependent claims.

An arrangement according to the invention for mounting roof accessories such as snow guards or snow guard beams, steps or other functional parts on an inclined building roof comprises at least one fastener with a preferably elongate support portion extending substantially in the direction of inclination of the ridge in eaves direction along the roof surface. In this case, the elongated support portion at an upper end of an angled mounting bracket, which releasably connected to a connection element by means of a screw connection attach is. The connecting element in turn has an approximately parallel to the roof surface extending and receiving on a load support element of the roof substructure or resting there and fixed longer section and an approximately perpendicular thereto shorter section for releasable connection to the angled mounting bracket.

The bending and torsion-resistant connection element and in this case preferably the longer portion of the connection element is fixed via at least two, possibly also three or more screw on the load receiving support member of the roof substructure and has a longitudinal extent parallel to the roof surface and perpendicular to the longitudinal direction of the elongated support portion of the fastener , The connecting element may be shorter or longer than the elongate carrier portion of the fastening element as needed. An advantageous variant may, for example, provide that approximately half the length of the support section is selected for the connection element.

In the arrangement according to the invention, the connection between the angled upper end of the mounting bracket and the shorter portion of the connecting element is defined by a variable within predetermined limits distance of the upper end of the mounting bracket to the load receiving support member of the roof substructure and / or the support portion. This variable distance can be, for example, with elongated holes or the like., The longitudinal extension direction in the components perpendicular to the roof surface, produce.

The connection between the angled upper end of the mounting bracket and the shorter portion of the connecting element is usefully made by a position variable screw. The position variable screw defined within predetermined limits a height of the angled upper end of the mounting bracket on the load receiving support element of the roof substructure, so that inaccuracies of the roof structure or variable thicknesses of the roofing (roof tiles) can be compensated during assembly of the roof accessory elements. With the aid of slots, which are introduced in the upper end of the mounting bracket and / or in the shorter portion of the connecting element, the position variable screw the distance to the roof substructure or to a below the roof covering extending reference plane, which is generated by the Verlattung between ridge and eaves , define. This way is a variable adaptation to differently shaped roofs, variable and / or different thicknesses of the roofing elements etc. allows.

The attachment between the upper end of the mounting bracket and the connecting element generated in a releasable screw mutual tension. Although the play-free connection is on the one hand adjustable, so that the mounting height of the mounting bracket can vary and can be adapted to the thickness of the roofing. On the other hand, it can be ensured by the position variable screw that the mounting bracket rests flush on the roof covering, possibly with slight bias, so that its play-free installation is ensured. The mounting bracket remains thereby firmly under the influence of wind on the roof and does not vibrate, which could lead to an unwanted noise nuisance. For this purpose, a damped contact surface of the mounting bracket can contribute in an advantageous manner, which may have, for example, elastic rubber pads or the like.

The connecting element may be formed, for example, as a sheet metal bracket, a profile rail or as a further construction variant, these components may each have variable hole patterns to allow universal mountability for attachment to the load-supporting support element and / or for clamping with the mounting bracket. Furthermore, the connecting element is bent by about 90 degrees or U-shaped or the like. Formed.

For the object according to the invention, the profile rail is preferably made substantially longer than wide and thereby produced as a cut extruded profile part of sheet steel. In addition, the profile rail preferably has regularly or irregularly spaced stiffening beads. The stiffener beads contribute to a higher rigidity or load capacity of the component and thus ensure a reliable load dissipation in the load-bearing roof construction.

In the arrangement, a bearing surface on the roof substructure occupies at least twice the area of the contact surface with the mounting bracket, in which the bearing surface extends approximately parallel to a plane which is spanned between ridge and eaves. This level is the roof surface.

The load-receiving support element, on which the connection element is anchored with its longer section, can be formed, in particular, by a tie-down anchored on a rafter. On a so-called counter battens run parallel to the First or eaves direction roof battens and / or support battens. The connecting element is preferably applied to the roof batten and fastened by the counter battens and formwork on the rafter by means of a suitable screw connection. A sufficiently stable screw connection is made with at least two, three or more thread-forming screws having a diameter of at least 6 mm and a length of at least 30 mm between the connection element and the load-bearing supporting elements.

A particular advantage of the arrangement according to the invention is its high load capacity, which is achieved by the design of all interacting items. With the arrangement very high loads can be collected and reliably derived in the supporting roof structure, without it can lead to undesirable bending stresses on one of the functional elements or even to component overloads and / or failure. For the most part, a heavy load, for example. Resulting from a snow load, which acts on a fastener fixed to the snow guard system, converted into a thrust load that can be easily introduced into the arrangement of the invention and from this in the supporting roof construction weitergegen.

It should be noted at this point that can be attached with different variants of the roof construction with the present invention, different snow guard systems such as. Snow guards, snow tailpipes, round timbers etc. Thus, for example, a mounting plate for attachment to the roof batten, while a mounting bracket for attachment to the rafters, on the rafter rail or on the variable rafter rail can be used. With each of these mounting options, the snow guard systems can be attached to the roof. These possibilities solve the objects of the invention.

It should be noted at this point that the present invention equally relates to a fastener which may have the features as described above.

• Figur 1 zeigt eine schematische Anordnung zur Montage von Dachzubehörelementen.
• Figuren 2a bis 2d zeigen unterschiedliche Ausführungsvarianten des an einer Dachunterkonstruktion angebrachten Anschlusselements.
• Figur 3 zeigt schematisch die unterschiedlichen Ausführungsvarianten von Anschlusselementen.

In the following, embodiments of the invention and their advantages with reference to the accompanying figures will be explained in more detail. The proportions of the individual elements to one another in the figures do not always correspond to the actual size ratios, since some shapes are simplified and other shapes are shown enlarged in relation to other elements for better illustration. For identical or equivalent elements of the invention, identical reference numerals are used.

• FIG. 1 shows a schematic arrangement for mounting roof accessories elements.
• FIGS. 2a to 2d show different embodiments of the attached to a roof substructure connection element.
• FIG. 3 schematically shows the different embodiments of connection elements.

The schematic representation FIG. 1 shows a variant of an inventive arrangement for mounting roof accessories elements 10 on an inclined building roof 12. For example, snow guards or snow guard bars or pipes, steps or other functional parts are attached to these illustrated Dachzubehörelemente 10, for example, to catch the snow in the winter and thereby occurring To divert forces into the load-bearing roof structure 50. On the building roof 12, a plurality of such roof accessory elements 10 can be secured in a desired distance from each other in series. The Indian FIG. 1 shown projecting from the roof support portion 11 is used for attachment of snow guards (not shown here). Optionally, the roof accessory element 10 may also have a differently shaped support portion 11, on the snow guard beam o. The like. Can be attached.

Each of these roof accessory elements 10 comprises at least one fastening element 14 with a preferably elongate support section 16 extending essentially in the direction of inclination from the roof ridge in eaves direction 13 along a roof surface. In this case, the elongated support section 16 has an angled mounting bracket 20 at an upper end 18 facing the roof ridge on, wherein this angled mounting bracket 20 is releasably secured by a screw 22 to a connection element 30, which in turn is firmly anchored in the roof structure 50.

The releasable connection 22 is a position variable screw. This position variable screw defined within predetermined limits a height of the angled upper end 18 of the mounting bracket 20 via a load-supporting support member 52 of the roof substructure 50 so that inaccuracies of the roof structure 50 or variable thicknesses of the roofing 51 (roof tiles o. The like.) In the assembly of Roof accessory elements 10 can be compensated. The variable position screw connection is formed, inter alia, with oblong holes. With the help of the slots, which are preferably introduced in the upper end 18 of the mounting bracket 20 and / or in a shorter portion 34 of the connecting element 30, the position variable screw the distance between the roof accessory element 10 and the roof substructure 50 or to a below the roofing 51st extending reference plane, which is generated by a gap between ridge and eaves define. The components are thus height adjustable to each other.

The detachable screw connection 22 may, for example, be formed from round-head screws M6x16 with hexagonal nuts with flange M6 or from all other suitable screw connections.

The connection element 30 preferably has a longer section 32 and a shorter section 34 approximately at right angles thereto. In this shorter portion 34 of the connecting element 30, the slot for the position variable screw with the mounting bracket 20 of the fastener 14 is introduced. The longer portion 32 is nearly parallel to the roof surface and abuts a load-bearing support member 52 of the roof substructure 50, this longer portion 32 preferably being secured to the load-bearing support member 52 with two hexagonal-head bolts 36.

For secure mounting of the connection element 30, this end face on an upper roof batten 56 which is parallel to the ridge or eaves and mounted on a counter battens 58, applied and fastened with the hexagonal screws 36 to this counter battens 58 and the load-bearing support member 52 , wherein the screw preferably passes through the formwork to the rafters 54.

The FIGS. 2a to 2d show different embodiments of a mounted on the roof substructure 50 connecting element 30. In the FIG. 2a the connection element 30 is shown in a short embodiment. In this embodiment, the connecting element 30 is positioned frontally to the upper roof batten 56 and fastened by means of a screw connection 35, for example. With hexagonal screws 36 on the counter battens 58 and formwork on the rafters 54. Due to the short embodiment of the connection element 30, this is variable in use or installation. In this case, one can also speak of a variable rafter rail.

In the FIG. 2b the connection element 30 is shown in a long embodiment. In this embodiment, the connection element 30 extends from one Counter battens 58 until the next counter battens 58 on the roof construction 50. The attachment of this connection element 30 is carried out in the FIG. 2a already explained.

Designed as profiled sheet metal rails 31 variable length connecting elements 30 (see. Figure 2a - 2b ) have groove-shaped recesses or so-called beads 38. These beads 38 serve to increase the rigidity. The more irregularly the beads 38 run, the higher the stiffening effect in the connection element 30.

Another embodiment of the connection element 30 is shown in FIG Figure 2c shown. The connecting element 30 is designed as a mounting bracket 44, wherein this mounting bracket 44 has a shorter portion 46 and a longer portion 48. The mounting bracket 44 is attached to the shorter portion 46 by means of a releasable threaded connection 22 on the mounting bracket 20 of the fastener 14. The detachable screw connection 22 can also be formed in this embodiment, for example. From round head bolts M6x16 with hex nuts with flange M6 or from all other suitable screw. The releasable connection 22 is a position variable screw, as already in Fig.1 mentioned. This position variable screw defined within predetermined limits, the height of the angled upper end 18 of the mounting bracket 20 on a load-supporting support member 52 of the roof substructure 50 so that inaccuracies of the roof structure 50 or variable thicknesses of the roofing 51 can be compensated in the assembly of roofing accessories 10.

Advantageously, this mounting bracket 44 is pre-mounted on the connection element 30 prior to attachment to the roof substructure 50. After the positioning of the fastening element 14 incl. The mounting bracket 44 on the roof covering 51, the mounting bracket 44 is secured by the counter battens 58 and formwork on the rafter 54 with a suitable screw 35. For this purpose, the longer portion 48 of the mounting bracket 44 rests on the counter-lath 58 and is bolted to the counter-battens 58.

In the Figure 2d a further variant of a connection element 30 is shown, wherein this connection element 30 has a mounting plate 40. The mounting plate 40 is attached to the roof batten 56 and to a support bar 60 with a suitable screw 35. For the attachment of the mounting plate 40, the roofing 51 must be removed in the region of the attachment of this mounting plate 40. Subsequently, the mounting plate 40 is the front side punched into the roof batten 56 (not shown) and secured by means of suitable screws 42, in particular countersunk, on the roof batten 56 and on the support bar 60. After attachment of the connection element 30 with the mounting plate 40, the roofing 51 is placed back on the building roof 12.

The connection element 30 with the mounting plate 40 has a shorter portion 41, on which the mounting bracket 20 of the fastening element 14 is attached by means of a detachable screw connection 22. This detachable screw 22 again serves as a position variable connection, as already in Fig.1 and Figure 2c described. Within predetermined limits, this variable position fitting defines the height of the angled upper end 18 of the mounting bracket 20 over the shorter portion 41 of the connector 30. Thus, with this embodiment, inaccuracies of the roof structure 50 or variable thicknesses of the roofing 51 can be compensated for mounting roofing accessories 10 ,

In the FIG. 3 The different types of connection elements 30 are shown. Depending on the application, the connection element 30 can have a different length, size and shape. For example. serves the mounting plate 40, as in Fig. 2d mentioned, for attachment to a roof batten 56. The mounting bracket 44 and the in FIG. 2a and 2 B described rafter rail are preferably used for mounting on a rafter 54th At the constructively relevant points 30 reinforcing beads are introduced at each connecting element, which serve to increase the rigidity.

The connecting elements 30 and sheet metal rails 31, which are shorter than half the length of the elongated support portion 16 of the fastener 14, are more variable in their mounting and mounting on the building roof 12 (see. Fig. 1 ).

Furthermore, the elongated support portion 16 of the fastener 14 is extremely stable and exceeds the stability of the known from the prior art snow guard support. In addition, this has a much steeper force deformation behavior.

The roof accessory elements 10 in the previously described embodiments are preferably positioned in the watercourse of the cover 51. Also, the connection elements 30 with the fastening elements 14 are suitable for almost all roofing types and installation situations.

The invention has been described with reference to a preferred embodiment. However, it will be apparent to those skilled in the art that modifications or changes may be made to the invention without departing from the scope of the following claims.

LIST OF REFERENCE NUMBERS

10

Roof accessory

11

support section

12

building roof

13

eaves

14

fastener

16

longer carrier section

18

top end

20

mounting bracket

22

Detachable connection

30

connecting element

31

sheet-metal rail

32

longer section

34

shorter section

35

screw

36

Screws, hexagon head bolts

38

beading

40

mounting plate

41

shorter section

42

Screws, countersunk screws

44

mounting Brackets

46

shorter section

48

longer section

50

Roof construction or roof substructure

51

roofing

52

Load-bearing support element

54

rafter

56

batten

58

battens

60

support bar

Claims (14)

Arrangement for mounting roof accessories elements (10) such as snow guards or snow guard beams or pipes, steps or other functional parts on an inclined building roof (12), comprising at least one fastening element (14) with a substantially in the direction of inclination of the roof ridge in eaves (13) a roof surface extending, preferably elongated support portion (16) having at an upper end (18) an angled mounting bracket (20) which is releasably attached to a connecting element (30), wherein the connecting element (30) extending approximately parallel to the roof surface and on a load-bearing support member (52) of the roof substructure (50) on or resting there and fixed longer portion (32) and an approximately perpendicular thereto shorter section (34) for releasable connection (22) to the angled mounting bracket (20) , characterized in that the bending and torsion rigid connection element (30) via at least two screw on the load-receiving support member (52) of the roof substructure (50) is fixed and a longitudinal extent parallel to the roof surface and perpendicular to the longitudinal direction of the elongated support portion (16) of the fastening element (14). Arrangement according to claim 1, wherein the connection between the angled upper end (18) of the mounting bracket (20) and the shorter portion (34) of the connecting element (30) has a variable within predetermined limits distance of the upper end (18) of the mounting bracket (20 ) to the load-bearing support element (52) and / or to the elongated support portion (16). Arrangement according to claim 2, wherein the connection is made by a positionally variable screw which defines within predetermined limits a height of the angled upper end (18) of the mounting bracket (20) above the load-bearing support member (52). Arrangement according to claim 2 or 3, wherein the attachment between the mounting bracket (20) and the connecting element (30) with a releasable screw (22) generates a mutual tension. Arrangement according to one of claims 1 to 4, wherein the connection element (30) is designed as a sheet metal bracket, a rail or other construction variants and variable hole patterns, for attachment to the support element or for clamping with the mounting bracket (20). Arrangement according to claim 5, wherein the connecting element (30) bent by about 90 degrees or U-shaped or the like. Is formed. Arrangement according to claim 5 or 6, wherein the profile rail is substantially longer than it is wide. Arrangement according to one of claims 5 to 7, wherein the profile rail is formed by a cut extruded profile part made of sheet steel. Arrangement according to claim 8, wherein the profile rail has regularly spaced stiffening beads (38). Arrangement according to one of claims 1 to 9, wherein a bearing surface on the roof substructure (50) occupies at least twice the area of the contact surface to the mounting bracket (20). Arrangement according to claim 10, wherein the support surface is approximately parallel to a plane which is spanned between ridge and eaves. Arrangement according to one of claims 1 to 11, wherein the load-bearing support member (52) by a rafter (54) or a roof batten (56) o. The like. Is formed. Arrangement according to one of claims 1 to 12, wherein the connecting element (30) or the rail is fixed with at least three thread-forming screws having a diameter of at least 6 mm and a length of at least 30 mm on the load-bearing support elements (52). Fastening element (14) of an arrangement according to one of claims 1 to 13.

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