EP1640525A2 - Fixation element for roof elements - Google Patents

Abstract

The fastening element (10) for a roof accessory element fitted on sloping roofs has a support section (12) which has an angled fastening clamp (14) on the upper end which is supported and/or fastened on a support component of the roof's sub-structure. A tensile load acting on the support section is directed as far as possible into the support component via the fastening clamp. The support section on a lower end has a support foot (26) lying on the roof surface and/or fastened there.

Description

The invention relates to a fastening element for roof accessory elements, in particular for mounted on an inclined building roof snow guards, snow gullies, steps or other functional components.

The installation of snow guards or other roof accessories is usually done by means of special support elements that are subsequently mounted on the roof, for example. By mounting on roof tiles. For this purpose, the roof tiles are usually pierced, so that the support elements can be bolted to the roof tiles or otherwise secured. An alternative mounting option is the replacement of individual roof tiles by appropriately prepared roof modules, on which a support is already mounted. Such roof modules may be, for example, modified roof tiles made of bricks. In addition, there are also replacement modules, which have the shape and size of the corresponding roof tiles, but which consist of deep-drawn and / or embossed sheet steel. Then the support elements can be welded, riveted, screwed or otherwise secured.

In addition, roof tiles are known, which are provided with holders for attachable risers, running grate holder or snow guards holder. Such a roof tile is, for example, known from DE 37 04 943 A1. The holder for the roof tile has a resting on the roof tile and fixed by a counter-plate on the roof panel support plate on which a pivot bearing is provided for tilt-adjustable attachment of the riser or the running grate or snow guards holder. A conventional roof pitch, consisting of two juxtaposed Dachfalzziegeln, each having a trough and extending in first eaves direction bead is, for example, from DE 90 01 495 U1 known. The roof riser includes a tread brace which transversely bridges the troughs between the beads of the two roof tiles and which is securable to the beads respectively.

The well-known snow guards and risers require not inconsiderable assembly costs and usually make an intervention in an existing Roofing required, eg. By replacing one or more roof tiles or by mounting the holder on existing roof tile. For this reason, separately mountable holders for roof snow catcher devices have become known, which can be mounted on an existing roofing. Such a holder is, for example, from CH 41 204 A known. The holder consists of a cross-sectionally U-shaped, placed in a corresponding angular shape iron strip, one of which is used to support the snow guard device leg by rotation of the profile iron about its longitudinal axis is set so that its broad side is perpendicular to that of the other leg. This known holder has a suspension hook, which can be suspended from an upper edge of a roof tile and optionally screwed there. The entire load of the holder is thus supported by the roof tile, to which it is mounted.

A roof hook for receiving snow guards is further known from DE 202 522 A. The roof hook has a U-shaped bent upper end, which is provided with a slot for pulling through a metal strip. The sheet metal strip is used to attach the hook to a rafter in order to give the hook a secure hold on the roof structure.

A holder for roof accessory elements is finally known from DE 203 00 503 U1. The holder has an upper fastening part which is hook-shaped and engages over a head end of a roofing element as well as a roof substructure supporting the roofing element and terminates 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.

An object of the present invention is to provide an easily mountable fastener of the generic type which can withstand high loads and which is suitable for inexpensively retrofitting existing roof structures.

This object of the invention is achieved with the subject matter of the independent claim. Features of advantageous developments emerge from the dependent claims.

An inventive fastener with the features of claim 1 comprises a substantially along a roof surface in the direction of inclination from the ridge in the direction of the eaves extending, preferably elongated support portion having at an upper end an angled mounting bracket which on a support member of the building roof or the Roof substructure can be supported and / or fastened. The upper end of the fastener points in this direction in the direction of the ridge. With a support member of the building roof or the roof substructure is generally meant a roof slat extending transversely to the roof pitch, which usually serves as a supporting part of the roof, provided that the distance between two adjacent roof battens is a maximum of one meter (see DIN 1052).

According to the invention, it is provided that a tensile load acting on the carrier section can largely be introduced via the mounting bracket into the carrier component of the roof substructure. The tensile load arises to a very small extent from the weight of the fastener. For the most part, the tensile force is formed from the gravitational force of a loaded fastener, for example, by a snow load, which acts on a fixed to the fastener snow guard grille.

The support portion may be formed in particular as an elongate, relatively slender component. For large loads to be absorbed, however, the support portion may also be formed relatively wide, for example. As wide or slightly narrower than a conventional roof tile. However, in conventional male loads, the beam portion has a maximum width of about 5 to 10 centimeters, but typically less than 5 centimeters.

Furthermore, the elongate support portion may be formed at a lower end, i. in the direction of the eaves area of the roof, have a resting on the roof surface support foot, for example, a rubber or plastic pad o. The like. May have to prevent scratching of the roof surface. Alternatively, however, the support leg can also be designed differently and possibly also be mounted on the roof or on the roof tile.

The fastener according to the invention can be in a simple manner with its upper angled mounting bracket between superimposed Hang roof tiles or roof covering elements and place them on the roof tile or on the roof surface with their lower support legs. Preferably, the support foot is in this case in a region of the roof surface, which is supported with a support member of the building roof, in particular with a roof batten. In this way, the bearing forces acting on the fastener, almost completely introduced into the roof substructure, so that an unacceptably high load on the roof tiles or for the roof covering can be avoided. If in the present context of a roof covering or a roof covering element is mentioned, it is basically any type of roof covering includes, for example. Traditional tile roof tiles, a corrugated metal cover, a so-called. Eternitbedeckung o. The like.

In addition, the elongated support section is preferably largely resistant to bending and torsion. For this purpose, the support portion, for example, from embossed sheet steel, made of light metal, plastic or consist of a composite material. A particularly stable and cost-effective design provides a fastener made of profiled and bent sheet steel, which can also be galvanized and / or painted or powder-coated. Of course, stainless steel sheet is also suitable as a base material for the fastening element. This may possibly be dispensed with an additional coating.

A further preferred embodiment of the invention provides that the angled mounting bracket has a U-shaped contour with an approximately perpendicular angled mounting or support portion. The angled mounting or support portion serves to support the angled mounting bracket on a longitudinal side of a roof batten, so that the U-shaped portion of the mounting bracket surrounds the roof support or covering, in particular an upper edge of a roof pan, without forces on the roof tile or whose upper edge are introduced. Possibly. The U-shaped portion of the mounting bracket may be shaped so that the roof tile is not touched in this area. In this way, any additional burden of roofing element is avoided, so that any risk of breakage can be reliably excluded.

In the manner described, the roof support or the roof tile with mounted fastener largely free of tensile or supporting loads be held because the tensile forces acting on the fastener, are almost completely absorbed by the roof batten on which the mounting or supporting portion rests. The attachment or support portion may optionally be mounted on the roof batten, in particular screwed.

An embodiment of the fastening element provides that a snow guard is provided in the region of the lower end of the support section. The snow guard can be riveted to the support section, bolted, welded or otherwise connected. Optionally, the fastener together with the snow guard support made of light metal, which is brought in the injection molding in the desired shape. A fiber composite plastic is also suitable as material for the fastening element according to the invention provided with the snow guard.

An alternative embodiment of the fastener provides that the support portion is provided with a riser. Preferably, the riser is supported on at least two similar, parallel mountable carrier sections, which are interconnected via the riser. The riser may in particular comprise a flat tread portion which is adjustable in its inclination relative to the at least one support portion, so that the tread portion of the riser can always be largely adjusted horizontally, regardless of an existing roof pitch. For this purpose, the tread portion of the riser may in particular have a lockable pivot bearing.

Optionally, it may also be sufficient to combine the riser with only one fastener according to the invention, the support portion may be made slightly wider in this case, if necessary. In a stable anchoring of the mounting bracket of the fastener, however, can also provide a relatively narrow, elongated support portion for a sufficiently stable support of a riser. The pivot bearing of the riser can be configured in different ways, for example. On the illustrated in the embodiment described below type.

Optionally, however, the pivot bearing can also be configured in a manner as described in German Offenlegungsschrift DE 37 04 943 A1. The content of this publication is - as far as they are on the Design of the riser and its pivotal support relates - hereby expressly included in the disclosure of the present application.

Steigtritt, fastener and snow guns consist in particular of deep-drawn and bent sheet steel, which may optionally have a galvanizing and / or a paint or powder coating. Alternatively, individual components may also consist of injection-molded light metal, in particular of a suitable aluminum alloy, of plastic, in particular with fiber reinforcement or of other suitable materials. A combination of different materials is conceivable and may be useful depending on the desired application.

• Fig. 1 zeigt eine perspektivische Darstellung eines erfindungsgemäßen Befestigungselements.
• Fig. 2 zeigt ein auf einer Dachpfanne aufliegendes Befestigungselement.
• Fig. 3 verdeutlicht die Montage des Befestigungselements an einer Dachlatte.
• Fig. 4 zeigt eine Ausführungsform zweier Befestigungselemente, die als Stützelemente für einen schwenkbaren Steigtritt dienen.

The invention will be explained in more detail below with reference to preferred but not limiting exemplary embodiments with reference to the accompanying drawings. The same parts are basically provided with the same reference numerals; partially therefore a multiple explanation is omitted.

• Fig. 1 shows a perspective view of a fastener according to the invention.
• Fig. 2 shows a resting on a tile fastener.
• Fig. 3 illustrates the mounting of the fastener on a roof batten.
• Fig. 4 shows an embodiment of two fastening elements, which serve as support elements for a pivotable riser.

The schematic perspective view of Fig. 1 illustrates a fastener 10 according to the invention, which (not shown) for mounting roof accessories elements such as. Snow guards, beams, risers or other functional components such as collectors, lines o. The like. On an inclined building roof. The illustrated fastener 10 is used to attach a snow guard (not shown), which is anchored or mounted after mounting the fastener 10 at this.

The fastener 10 includes an elongate support portion 12 having an angled mounting bracket 14 at an upper end thereof a support member of the building roof, in particular supported on a roof batten and / or can be fastened (see Fig .. 3). The mounting bracket 14 has in the illustrated embodiment, a U-shaped contour with an approximately perpendicular angled support portion 16. The support section 16 has at least one fastening bore 18, which serves to mount the mounting bracket 14 on the roof lath by means of a wood screw 20 (see Fig. 3).

As is made clear with reference to FIGS. 2 and 3, the U-shaped section of the mounting bracket 14 engages around an upper edge of a roofing tile 22, so that the support section 16 can be supported on a roof rail 24 and fastened there. In this way, the roof tile 22 is held with mounted fastener 10 largely free of tensile or supporting loads. At the lower end, the fastening element has a support foot resting on the roof surface, which in the exemplary embodiment shown comprises a planar support surface, which is covered with an elastic plastic cover. Preferably, the support portion 16 of the U-shaped mounting bracket 14 is screwed by means of a wood screw 20 on the roof batten 24, so that the fastening element 10 is fixed to the roof.

The variants according to FIGS. 1 and 2 show a fastening element 10 which has a snow guard support 30 fastened thereto in the area of the lower end of the support section 12. This snow guard 30 is used to attach a snow guards, not shown. The snow gun support 30 is like the fastener 10 itself made in the embodiment shown from embossed or deep-drawn sheet steel, which is riveted or welded to the support portion 12.

After mounted fastener 10 (see Figures 2 and 3), the snow guard can be hung easily, including the provided on the snow guard support 30 mounting hooks 32 and 34 serve.

In the exemplary embodiment shown, the support section 12 has an elongate, profiled contour with edge sections bent upward at right angles, so that a U-shaped contour with angled edges results in cross-section. This contour can be easily produced from a sheet metal strip and leads to a comparison with a flat sheet metal strip significantly increased torsional and bending stiffness. This profiling extends almost the entire length of the At the upper end, the profiling extends beyond the U-shaped mounting bracket 14 and to the angled support portion 16, wherein the profiling is flattened in the upper region relative to the middle and lower portion of the support portion 12 , Instead of the profiling shown, the support portion 12 may optionally also have an L-shaped, a T-shaped or a double-T-shaped profiling.

The snow guard 30 has a triangular base and a box-shaped cross-section, which results in cost-effective manufacturability in deep-drawing or embossing a very high rigidity. The snow guard 30 can be prepared by stamping, deep drawing and bending from a single sheet metal section, wherein in the illustrated embodiment, the upper mounting hook 32 is subsequently riveted to the snow guard support 30. As illustrated in particular with reference to FIG. 2, a short leg of the snow guard support 30 is riveted or welded to the lower portion of the support portion 12 of the fastener 10.

The length of the support portion 12 of the fastener 10 between the mounting bracket 14 and the support leg 26 depends primarily on the length of the roofing elements or roof tiles 22 (see Fig. 2) and in particular after the respective distance between two battens, in which the Fastening element 10 is supported. Preferably, the support leg 26 should rest in a region which is supported by a roof batten 24, whereby the roof covering elements can be largely kept free from stress. The tensile and compressive loads which are introduced via the supports 30 in the fastening elements 10 can thus be largely absorbed by the roof substructure, in particular by the corresponding roof battens. This is particularly advantageous for sensitive roofing elements, which can be protected in this way from unduly high loads. A typical length of the fastener 10 may be between about 30 cm and up to 90 or 100 cm, depending on the distance of the battens from each other.

Instead of the snow guard 30 shown, the fastener 10 may be provided with a variety of support and / or fasteners for different roof accessories. The fastener can For example, for fastening snow girders, risers, pipe parts, solar collectors or other functional parts serve.

An alternative embodiment of the fastening element 10 according to FIG. 4 provides a riser 36 anchored thereto, which is supported in a pivotable mounting on two similar fastening elements 10, which are connected via the riser 36 and arranged parallel to each other. The riser 36 has a flat tread portion 38 which is adjustable via the pivot bearing 40 in its inclination so that the support surface of the tread portion 38 can be arranged substantially horizontally, regardless of the respective roof pitch on which the fasteners 10 are mounted. By means of a plurality of screws 42, the pivot bearing 40 can be fixed and secured in the selected inclination, so that the riser 36 is reliably stabilized in any desired position.

The support section 12 are provided in the fasteners 10 as shown in FIG. 4 with upwardly pointing support portions 44 having an upper support 46 for receiving the riser 36. For this purpose, this has at its two longitudinal sides in each case arcuately curved support strips 48 which can be deposited on the corresponding supports 46 and there after the loosening of the fastening screws 42 are displaced until the desired inclination or the horizontal orientation of the tread portion 38 is reached. In this position, the fastening screws 42 can be tightened so that the riser 36 is fixed.

The riser 36 has on a side facing the eaves area of the roof narrow side a handle 50, so that the ascending and descending on stacked risers 36 is facilitated. Furthermore, the tread portion 38 has a series of elongate openings, the edges of which are bulged upward, so that the slip resistance on the tread portion 38 is improved. Finally, the tread portion 38 at the two longitudinal sides and at the handle 50 opposite the narrow side bent-up frame sections to guide the parked on the tread portion 38 foot safely.

The fastening of the fastening elements 10 on the roof battens of the roof substructure and on the roof tiles takes place in the same manner as in the snow gun supports according to FIGS. 1 to 3.

Also in this embodiment, the length of the fasteners 10 is to be dimensioned so that the support portions 16 preferably rest in an area in which a roof batten is arranged so that the supporting forces can be initiated directly on the roof substructure and not to an unacceptably high load Roof top or the roof tile can lead.

The features of the invention disclosed in the foregoing description, drawings and claims may be significant to the realization of the invention in its various forms both individually and in any combination thereof. The invention is not limited to the above embodiments. Rather, a variety of variants and modifications are conceivable that make use of the inventive concept and therefore also fall within the scope.

Claims (10)

Fastening element (10) for mounted on an inclined building roof roof accessories elements such as snow guards, beams, steps or other functional parts, with a substantially in the direction of inclination of the ridge in the eaves direction along the roof surface extending, preferably elongated support portion (12), at an upper end an angled mounting bracket (14) which on a support member of the roof substructure, in particular on a roof batten (24) can be supported and / or fastened, characterized in that on the support portion (12) acting tensile load on the mounting bracket (14) largely in the support member of the roof substructure can be introduced. Fastening element according to claim 1, characterized in that the support portion (12) at a lower end resting on the roof surface and / or fastened there support leg (26), which preferably rests in a region of the roof surface, which is connected to a support member of the roof substructure, is supported in particular with a roof batten (24). Fastening element according to claim 1 or 2, characterized in that the support portion (12) is substantially resistant to bending and torsion. Fastening element according to claim 3, characterized in that the support portion (12) has a profiling, in particular a U-shaped, L-shaped, T-shaped or double-T-shaped profiling. Fastening element according to one of the preceding claims, characterized in that the angled mounting bracket (14) has a U-shaped contour with an approximately vertically angled mounting or support portion (16). Fastening element according to claim 5, characterized in that the U-shaped portion of the mounting bracket (14) Dachauflage- or Roof covering element, in particular an upper edge of a roof tile (22) surrounds. Fastening element according to claim 6, characterized in that the U-shaped portion of the mounting bracket (14) engages around an upper region or the upper edge of the Dachauflage- or roof covering element without contact. Fastening element according to one of the preceding claims, characterized in that the support portion (12) is provided with a riser (36) which is supported on at least two similar, parallel mountable fasteners (10). Fastening element according to claim 8, characterized in that the riser (36) comprises a flat tread portion (38) which is adjustable in its inclination relative to the at least one support portion (12). Fastening element according to claim 9, characterized in that the tread portion (38) of the riser (36) has an adjustable pivot bearing.

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