DE20116814U1 - Self-locking bracket for roof accessories - Google Patents

Description

Am Weinberg 15 D-35096 Weimar-Niederweimar Telephone: 06421 78627 Fax: 06421 7153

17.10.2001 G 1046 Il - Bu/gl

Wilhelm Lück, Fichtenweg 20, 57250 Netphen

Self-locking bracket for roof accessories

Description

The invention relates to a holder for securing roof accessory elements such as roof hooks, snow guards, steps and the like to sloping roofs according to the preamble of claim 1.

Commonly used brackets for roof accessories typically use elongated, perforated tongues that are nailed to a roof batten supporting the roofing elements, to a rafter, or to separate auxiliary battens during installation of the bracket.

This often leads to delays in the installation of the brackets. It is also difficult to remove the nailed tongues, for example if the roof needs to be re-covered. In addition, when using auxiliary battens it is not possible to attach the brackets directly to the ridge or in front of a chimney. Instead, the distance must be maintained at least one row of roofing, which is not always desirable or practical.

The aim of the invention is to avoid these and other disadvantages of the prior art and to create a holder that can be manufactured inexpensively using simple means and can be installed in just a few simple steps. The use of auxiliary slats or other fastening aids should be completely avoided. Furthermore, the holder should be universally applicable.

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Main features of the invention are specified in the characterizing part of claim 1. Embodiments are the subject of claims 2 to 23.

In a holder for securing roof accessory elements such as roof hooks, snow guards, steps and the like on sloping roofs, with a support leg for receiving and securing the roof accessory element, which extends above a roof covering element, for example a pan, a tile, a plate or the like, in the direction of the roof's inclination, and with a fastening element for securing the support leg to a roof substructure of the roof, the invention provides according to claim 1 that the fastening element, which is approximately U-shaped in section, engages over the head end of the roof covering element and the roof substructure supporting the roof covering element, for example a roof batten, and runs out below the roof substructure into a longitudinal leg which runs essentially parallel to the support leg and carries or forms at least one securing element which rests against the roof substructure in a force-fitting and/or form-fitting manner.

Such a bracket can be easily attached to the roof covering element and the roof batten directly underneath without any tools. The support leg then lies flat on the roof covering element, with the head end of the roof covering element and the roof batten enclosed by the fastening element. At the same time, the bracket is fixed in its final position by the securing elements, so that the bracket cannot be accidentally lifted or removed. Additional fastening means such as screws, nails, hooks or the like are no longer required. No tools are required to attach the bracket according to the invention. The bracket is installed, supported and attached in just one single step, which drastically reduces the installation time. In addition, only a single roof covering element and the roof batten underneath are required to secure the bracket. The use of auxiliary battens can therefore be completely dispensed with.

If the bracket needs to be dismantled, no tools are required. If the securing elements are lifted off the roof substructure by bending up the fastening element or the longitudinal leg, the bracket can be removed upwards from the roof covering element or the roof substructure and reused if necessary.

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Claim 2 also contributes to the bracket always being securely in place, whereby each securing element engages under and/or behind the roof substructure. Once the bracket has reached its final position on the roof covering element, it can no longer come loose on its own. Rather, it is prevented from moving further by the securing elements. The previously necessary nailing or screwing of the bracket to the substructure is therefore no longer necessary.

Claim 3 also contributes to simplified assembly in that at least one of the securing elements is designed to be resilient within certain limits. The latter therefore enable the bracket to be easily attached to the roof covering element or the roof substructure, with the securing elements automatically assuming their locking position when the bracket reaches its end position.

According to claim 4, the securing elements are arranged one behind the other in the longitudinal direction of the longitudinal leg, which further improves the securing of the holder in the mounted position. In addition or alternatively, the securing elements can also extend in the longitudinal direction of the longitudinal leg. Or, in accordance with claim 5, at least two securing elements are arranged next to one another transversely to the longitudinal direction of the longitudinal leg.

The invention further provides in claim 6 that at least two securing elements are arranged next to one another in a V-shape or wing-like manner. When the holder is placed on the roof covering element, the upper edges of the securing elements engage the roof batten from below in a force-fitting and form-fitting manner - depending on the angle of the securing elements - so that a permanently firm anchoring is achieved. The measure in claim 7 prevents the holder from tipping over on the roof covering element, namely when the at least two securing elements are arranged at a distance and parallel to one another.

From a manufacturing point of view, it is advantageous if the securing elements according to claim 8 are formed integrally with one another and/or according to claim 9 are formed integrally with the longitudinal leg.

In order to be able to adapt the bracket to different roof covering elements and/or roof batten thicknesses, the invention provides in claim 10 that the clear

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The opening width of the fastening element is variable. This can be achieved according to claim 11 by changing the distance between the support leg and the longitudinal leg, or according to claim 12 by adjusting the positioning of the securing elements relative to the support leg. The measure according to claim 13 is particularly advantageous here if the securing elements are plastically deformable. These can therefore be bent downwards a little in the case of thicker roof battens or - in the case of thin roof battens - bent upwards accordingly. No tools are required for this, i.e. the bracket can be quickly and easily adapted to the existing roof structure at any time, which considerably expands the range of applications of the bracket.

According to the embodiment of claim 14, the securing elements are made of flat sheet metal material. This ensures that the holders are manufactured particularly cost-effectively. The securing elements can also be easily attached to the longitudinal leg, for example by means of welding points. Depending on the installation situation, the securing elements can also be made of wire material according to claim 15, which can possibly further improve the functionality according to the invention.

The development of claim 16 is important, according to which the securing elements have or form wings, shoulders, tongues, spikes or the like that can be placed against the roof substructure in the ascending direction of the roof pitch. These securing elements, which are formed on the longitudinal leg of the fastening element, press firmly into the roof batten from below, so that an unintentional displacement of the bracket in the direction of the ridge is no longer possible. The bracket cannot therefore be removed without lifting or loosening the securing elements from the roof substructure. Rather, the bracket is always securely fixed in its position.

The design of claim 17 offers further structural advantages. According to this, the fastening element is formed integrally with the support leg, at least in sections. However, the fastening element can also be fastened to the support leg by means of a rivet, according to claim 18.

A further embodiment of the invention provides according to claim 19 that the longitudinal leg is designed as a spring tongue, which according to claim 20 can be designed in a stepped manner to form shoulders. The latter preferably lie from behind

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against the roof batten and thus prevent the bracket from coming loose accidentally. The longitudinal leg is preferably made of a spring steel strip. Due to the springy properties and a suitable stepped design of the shoulders, the bracket can be used with practically all common roof batten dimensions.

In yet another embodiment of the invention, according to claim 21, an abutment for the holder is formed in the form of an eccentrically rotatable ring which, in its locking position, rests against the underside and/or the front side of the roof batten.

In all embodiments of the described holder, it has proven to be advantageous if the holder with its fastening element is not supported directly on the upper end of the roof covering element. The pressures resulting from this can lead to damage to the roof covering element, which is made of ceramic or clay, for example. Such protection is achieved according to claim 22 in that the fastening element has a shoulder or projection with which the holder is supported against the roof substructure when installed. This allows the U-shaped profile of the fastening element to enclose the head end of the roof covering element without touching it.

Further features, details and advantages of the invention emerge from the wording of the claims and from the following description of embodiments with reference to the drawings. They show:

Fig. 1 is a partial side view of a holder according to the invention,
Fig. 2 is a rear view of the bracket of Fig. 1,

Fig. 3 shows another embodiment of a holder in which the longitudinal leg of the fastening element is arranged displaceably in a spreading element,

Fig. 4 a holder in which the longitudinal leg of the fastening element is attached to the support leg by means of a screw connection,

Fig. 5 shows a further embodiment of a holder with a longitudinal leg in the form of a bendable spring tongue,

Fig. 6 a holder in which the longitudinal leg of the fastening element has an eccentrically rotatable ring,

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Fig. 7 a holder in which the longitudinal leg of the fastening element is designed in a step-like manner,

Fig. 8 shows yet another embodiment of a holder in which the longitudinal leg of the fastening element has bent-out mandrels.

The bracket generally designated 10 in Fig. 1 is used to secure roof accessory elements (not shown) such as roof hooks, snow guards, steps or the like to a pitched roof. It has a flat, elongated support leg 12, for example made of flat steel, which extends above a roof covering element D in the direction of the roof's inclination and carries a vertical flat support 14 to accommodate the roof accessory element. The roof covering element D, for example a ceramic roof tile or a clay tile, rests with its underside on a roof batten L which belongs to a roof substructure U (not shown in more detail). A nose N formed on the head end K prevents the roof covering element D from slipping in the direction of the roof's inclination.

At the ridge-side end of the bracket 10, a fastening element 18 with an approximately U-shaped cross section is provided on the support leg 12. This corner profile, which is preferably made of flat steel or sheet steel, overlaps the head end K of the roof covering element D with a first upper leg 19 and a transverse leg 20 adjoining it at right angles and runs below the roof covering element D and the roof batten L in a longitudinal leg 22 which - like the upper leg 19 - runs essentially parallel to the support leg 12. The upper leg 19 is fastened to the support leg 12 by means of welding points (not shown) or, as shown in Fig. 1 or 2, is connected to the flat support 14 by means of a laterally formed retaining cable 40 and a screw connection 42.

The free end 23 of the longitudinal leg 22 carries two V-shaped wings or tongues 32 made of sheet steel, each of which extends in the longitudinal direction R of the leg 22 and, as can be seen in Fig. 2, is attached to the outer edges 24 thereof. The wings 32 are connected in parallel to one another via a flat web 31 and are attached to the longitudinal leg 22 via this by means of welding points (not shown). The flat web 31 and the wings 32 are preferably made in one piece from folded sheet metal material, the flat web 31 having approximately the same width as the longitudinal leg 22 and the plastically deformable, but always spring-elastic wings 32 being set at such an angle to the roof batten L that

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that the distance A between the upper leg 19 of the fastening member 18 and the upper edges 34 of the wings 32 in the unassembled state of the bracket 10 is smaller than the combined thickness of the roof covering element D and the roof batten L.

To mount the bracket 10, the support leg 12 is placed on the roof covering element D from above and its hook-shaped fastening element 18 or its legs 19, 20, 22 are hooked over the head end K of the roof covering element D and the roof batten L. As soon as the longitudinal leg 22 of the fastening element 18 reaches under the roof batten L, the spring-elastic wings 32 are initially bent slightly downwards in order to then lie against the roof batten L from below in the rising direction of the roof pitch. The upper edges 34 of the wings 32 can cut into the wood of the roof batten L a little way. The support leg 12 and the upper leg 19 of the fastening element 18 lie essentially flat on the roof covering element D, while the transverse leg 20 of the fastening element 18 finds a stop at the head end K of the roof covering element D. The bracket 10 is mounted on the roof; it can no longer come loose on its own.

It can be seen that the wings 32 of the fastening element 18 form securing elements 30 which are placed in a force-fitting and form-fitting manner against the roof substructure U, here the roof batten L, and thereby fix the bracket 10 in its final position. The use of nails, screws or other fastening aids, such as auxiliary battens, is not necessary, nor is the use of tools. The relatively wide position of the wings 32 under the roof batten L also prevents the bracket 10 from tipping sideways. This is always held reliably and is easy to install.

In order to make it easier to attach the bracket 10 to the roof covering element D and the roof batten L, the front and rear edges 35, 36 of the wings 32 can be designed to be slanted in the direction of the ridge. The latter, together with the flat web 31, are preferably manufactured as free-falling stamped parts from a sheet metal strip and then folded so that no material residue is created. This has a positive effect on the manufacturing costs.

Another important advantage of the holder 10 according to the invention is that the clear opening width A of the fastening element 18 can be changed quickly and easily

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The use of folded sheet metal means that the wings 32 are plastically deformable, i.e. they can be bent to extend further or be made steeper in relation to the roof batten L, while their elasticity is fully retained in each case. The distance A between the upper leg 19 of the fastening element 18 and the upper edges 34 of the wings 32 can thus be adjusted at any time to roof covering elements D and roof battens L with different thicknesses and strengths. This means that the holder 10 can be used almost universally.

So that the roof covering elements can overlap in the area of the bracket 10, a gap S is formed between the upper leg 19 of the fastening element 18 and the ridge-side end of the flat support 14, which gap accommodates the lower edge of a roof tile (not shown) of a row of tiles following in the direction of the ridge. The height a of this gap S can be adjusted to the respective thickness of the roof covering elements D if necessary using the retaining cable 40 and the screw connection 42. For this purpose, the retaining cable 40 is provided with an elongated hole (not shown) so that the distance between the upper leg 19 and the support leg 12 can be changed.

In order to transfer the load to be absorbed by the bracket 10 or the roof accessory element into the roof covering D over as large an area as possible, U-shaped clamping buffers 16 are placed on the eaves-side end of the support leg 12 (not shown) and on the ridge-side end of the flat support 14 or a support leg 15 formed thereon. The bracket 10 is supported by these on the roof covering D of the roof without creating point loads.

In the embodiment shown in Fig. 3, the fastening element 18 is designed in two parts. The upper leg 19 is in one piece with the support leg 12, while the transverse leg 20, which is connected at right angles to it and spans the head end K of the roof covering element D, forms an approximately V-shaped holding element 50 at the end. The latter consists of a spring steel strip 52 which is under spring preload and therefore tends to expand. The longitudinal leg 22 of the fastening element 18, which spans the roof batten L, is guided by means of an angled holding strut 56 in two slots 53, 54 of the holding element 50 corresponding to the cross section of the holding strut 56. As a result, the lower longitudinal leg 22 is fixed in its position relative to the support leg 12 via the holding strut 56. The free end 23 of the longitudinal leg 22 carries several securing elements 30 in the longitudinal direction R

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of the longitudinal leg 22, thorns 58 arranged one behind the other, which can cut into the wood of the roof batten L.

When the bracket is mounted, the longitudinal leg 22 slides under the roof batten L, whereby the spikes 58 lie against the roof substructure U or L from below in the direction of the rising roof pitch. This secures the bracket 10 in its final position. The support strut 56 can only be moved and the distance A between the support leg 12 and the longitudinal leg 22 can therefore only be changed by manually pressing the holding element 50 or the V-shaped spring steel strip 52 together. If the spring steel strip 52 is released, the support strut 56 is clamped and the longitudinal leg 22 is fixed in its position.

In the embodiment of Fig. 4, the longitudinal leg 22 of the fastening element 18 is locked by means of a screw connection 60. The latter passes through the ridge-side end of the upper leg 19, which is integral with the support leg 12, as well as a tab 62 formed on the cross leg 20, so that stable guidance of the screw connection 60 is ensured. With this, the clear opening width A of the fastening element 18 can be adjusted and adapted to different roof batten thicknesses. A wing nut 66 is provided for handling, so that no separate tool is required for adjusting the holder 10. Claws 64 arranged on the end of the longitudinal leg 22 secure the holder 10 in its assembled end position.

The support leg 12 and the fastening element 18 can also be designed as a single piece, as shown in Fig. 5. The resulting hook-shaped holder 10 is suspended over the head end K of the roof covering element D and the roof batten L, with the longitudinal leg 22 designed as a spring tongue pressing against the roof batten L from below. Here too, slightly inclined spikes 58 in the longitudinal direction R of the leg 22 ensure that the holder 10 is held securely. To make it easier to attach the holder 10, the free end 23 of the longitudinal leg 22 is designed to be slightly curved in the manner of a spring clip.

The design of Fig. 6 provides that the longitudinal leg 22 carries an eccentric ring 76 which can be rotated in an eccentric manner and which engages under or - as shown - behind the roof batten L. A pivotable handle 77 is provided for actuating the eccentric ring 76, which is rotatably mounted, for example, together with the longitudinal leg 22 on the approximately fork-shaped transverse leg 20.

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However, it can also provide a separate pivot axis (not shown) which runs in or on the longitudinal leg 22.

In the embodiment of Fig. 7, the longitudinal leg 22 is also designed as a spring tongue. However, this forms shoulders 70 at the end, which as securing elements 30 grip the roof substructure U or the roof batten L under and behind. It can be seen in Fig. 7 that the longitudinal leg 22 can have several shoulders 70 in order to be able to use the bracket on roof battens L of different thicknesses (see dashed line). A bend 72 at the end facilitates the assembly of the bracket 10.

By means of a projection 74 in the area of the cross leg 20 of the fastening element 18, the bracket 10 is supported against the front of the roof batten L, so that the head end K of the roof covering element D is relieved. Pressure loads acting on the bracket 10 cannot therefore lead to any damage to the roof covering elements D. ^

In the variant of Fig. 8, the supporting leg 12 and the transverse leg 20 of the fastening member 18 are formed in one piece, while the longitudinal leg 22 carrying the securing elements 30 is fastened to the transverse leg 20 by means of a rivet 80.

The invention is not limited to one of the embodiments described above, but can be modified in many ways. For example, the securing elements 30 and/or the fastening element 18 can be made of wire.

All features and advantages arising from the claims, the description and the drawings, including structural details, spatial arrangements and method steps, can be essential to the invention both individually and in a wide variety of combinations.

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List of reference symbols

a Height 32 Wing/tongue A Distance / opening width 34 Top edge D Roof covering element 35 Front edge K Head end 36 Back edge L Roof batten N Nose 40 Holding cable R Longitudinal direction 42 Screw connection S gap U Roof substructure 50 Holding organ 52 Spring steel strips 10 bracket 53, 54 slots 12 Support leg 56 Support strut 14 Flat support 58 mandrel 15 Support leg 16 Clamp buffer 60 Screw connection 62 Tab 18 Fastening organ 64 claw 19 upper thigh 66 Wing nut 20 Cross leg 70 shoulder 22 Longitudinal leg 72 Bending 23 free end 74 head Start 24 Outer edge 76 ring 77 Handle 30 Securing element 80 rivet 31 Flat web

Claims (23)

1. Holder ( 10 ) for securing roof accessory elements such as roof hooks, snow guards, steps and the like on pitched roofs, with a support leg ( 12 ) for receiving and securing the roof accessory element, which extends above a roof covering element (D), for example a pan, a tile, a plate or the like, in the direction of the roof's inclination, and with a fastening element ( 18 ) for securing the support leg ( 12 ) to a roof substructure (U) of the roof, characterized in that the fastening element ( 18 ), which is approximately U-shaped in section, engages over the head end (K) of the roof covering element (D) and the roof substructure (U) supporting the roof covering element (D), for example a roof batten (L), and runs out below the roof substructure (U) into a longitudinal leg ( 22 ) which runs essentially parallel to the support leg ( 12 ). and carries or forms at least one securing element ( 30 ) which rests against the roof substructure (U) in a force-fitting and/or form-fitting manner. 2. Holder according to claim 1, characterized in that each securing element ( 30 ) engages under and/or behind the roof substructure (U). 3. Holder according to claim 1 or 2, characterized in that at least one of the securing elements ( 30 ) is designed to be resilient within limits. 4. Holder according to one of claims 1 to 3, characterized in that securing elements ( 30 ) are arranged one behind the other in the longitudinal direction (R) of the longitudinal leg ( 22 ) and/or extend in the longitudinal direction (R) of the longitudinal leg ( 22 ). 5. Holder according to one of claims 1 to 4, characterized in that at least two securing elements ( 30 ) are arranged next to one another transversely to the longitudinal direction (R) of the longitudinal leg ( 22 ). 6. Holder according to claim 5, characterized in that the at least two securing elements ( 30 ) are arranged next to one another in a V-shape or wing-like manner. 7. Holder according to claim 6, characterized in that the at least two securing elements ( 30 ) are arranged at a distance and parallel to one another. 8. Holder according to one of claims 1 to 7, characterized in that the securing elements ( 30 ) are formed integrally with one another. 9. Holder according to one of claims 1 to 8, characterized in that the securing elements ( 30 ) are integral with the longitudinal leg ( 22 ). 10. Holder according to one of claims 1 to 9, characterized in that the clear opening width (A) of the fastening member ( 18 ) is variable. 11. Holder according to one of claims 1 to 10, characterized in that the distance between the longitudinal leg ( 22 ) and the supporting leg ( 12 ) is variable. 12. Holder according to one of claims 1 to 10, characterized in that the positioning of the securing elements ( 30 ) relative to the support leg ( 12 ) is variable. 13. Holder according to claim 12, characterized in that the securing elements ( 30 ) are plastically deformable. 14. Holder according to one of claims 1 to 13, characterized in that the securing elements ( 30 ) are made of flat sheet metal material. 15. Holder according to one of claims 1 to 14, characterized in that the securing elements ( 30 ) are made of wire material. 16. Holder according to one of claims 1 to 15, characterized in that the securing elements ( 30 ) have or form wings ( 32 ), shoulders (), tongues (), mandrels () or the like which can be placed against the roof substructure (U) in the ascending roof pitch direction. 17. Holder according to one of claims 1 to 16, characterized in that the fastening member ( 18 ) is at least partially integral with the support leg ( 12 ). 18. Holder according to one of claims 1 to 16, characterized in that the fastening member ( 18 ) is fastened to the support leg ( 12 ) by means of a rivet ( 80 ). 19. Holder according to one of claims 1 to 18, characterized in that the longitudinal leg ( 22 ) is designed as a spring tongue. 20. Holder according to claim 19, characterized in that the spring tongue ( 22 ) is stepped in order to form shoulders ( 70 ). 21. Holder according to one of claims 1 to 18, characterized in that the longitudinal leg ( 22 ) carries an eccentrically rotatable ring ( 76 ) at its end. 22. Holder according to one of claims 1 to 21, characterized in that the fastening member ( 18 ) has a shoulder or projection ( 74 ) with which the holder ( 10 ) is supported against the roof substructure (U) in the assembled state. 23. Holder ( 10 ) for roof accessory elements such as roof hooks, snow guards, steps and the like, with a support leg ( 12 ) for receiving and fastening the roof accessory element, which extends above a roof covering element (D) such as a pan, a tile, a plate or the like in the direction of inclination of a roof, the holder having a fastening element ( 18 ) which is approximately U-shaped in section and which adjoins the support leg ( 12), the leg (22 ) of which engages over the head end (K) of the roof covering element (D) and a batten (L) carrying the roof covering element (D), in particular according to one of claims 1 to 21, characterized in that the lower longitudinal leg ( 22 ) of the fastening element ( 18 ) which engages under the roof batten (L) is designed to prevent movement of the mounted holder ( 10 ) in an ascending direction. The roof has shoulders, tongues () or spikes () that can be placed against the roof batten (L) in the direction of roof pitch.