EP2186963B1 - Wire clamp for attaching and securing roofing boards - Google Patents

Description

The invention relates to a clamp made of metal, for example metal sheet, preferably made of wire, for fastening and securing roofing tiles and roof tiles, wherein the bracket has a first end portion for attachment to a roof batten or a corresponding part of a roof substructure and a second end portion for securing and securing position the roofing plate or the roof tile, wherein the first end portion is connected to the second end portion via a bending arm and the first end portion is formed approximately U-shaped, wherein the U-shaped first end portion has a base forming its area, the mounting base in the lower position engages a suitably sized batten, the base is followed by a free leg, which is angled over the base by more than 90 ° to the base, and at the other end of the base of the bending arm leading leg connects.

Such a clip is for example from the DE 35 07 460 A1 known.

Although such a clip has been proven in the prior art, there is a need for improvement.

Such staples are used for the attachment of roofing tiles or roof tiles, wherein the clip is integrally formed from wire. With its first U-shaped end part of the clip is hooked to a roof batten, which is part of the roof substructure. The second end portion of the bracket has at the end of the bending arm an angled portion or a hook by means of which the bracket can be hooked to the Seitenfalzkante a roofing plate or the like. In the intended use of such roofing brackets, the problem arises that the roof panels, especially in wind suction forces are lifted by the wind suction from the underlying roof plate, which is possible due to the Biegearmes the clip within limits.

In the known construction, the problem arises that the entanglement of the clip can solve on the roof batten or at least a considerable movement between the batten and the first end portion of the clip, with occurring wind suction forces the clip has the tendency to get around the batten to turn and in extreme cases even to break away from this batten.

Another problem is that mounting the clip to the corresponding batten bar is difficult. The gap that exists between the fixed formwork of the roof or between the underlayment and the roof batten, in Germany, for example, a maximum of 24 mm. In other countries, the gap is smaller, up to about 10 mm. This means that the conventional clip can not be threaded onto the roof batten, or only with considerable Circumstances because the necessary for attachment to the roof batten pivotal movement of the clamp relative to the roof batten can not be performed, because this is excluded by the formwork or the underlayment as part of the roof substructure.

From the DE 85 06 048 U 1 is another staple of this type is known, as indicated in the preamble of claim 1. Also in this clip the problem arises that the roof panels, especially in wind suction forces are lifted by the wind suction from the underlying roof plate, which is possible due to the Biegearmes the clip within limits. In the specified construction, in turn, the problem arises that the entanglement of the clip can solve on the roof batten or at least a considerable movement between the batten and the first end of the clip, because with corresponding wind suction forces the clip at the corresponding load of Bending arm can turn around the batten and in extreme cases can even come off the batten.

Also in this known training, the same assembly problem occurs, which already above with respect DE 35 07 460 A 1 is described.

Based on this prior art, the present invention seeks to provide a staple generic type, on the one hand even with occurring loads, especially when acting on the roofing wind suction a position secure Guaranteed fit to the corresponding batten and the other hand, even with small gaps between formwork or roofing membrane and roof batten of 24 mm or less allows easy mounting of the clip on the batten.

To solve this problem, the invention proposes that in assembly target position of the free leg is supported with its end on the first side surface of the batten at a distance from the bottom, leaving in the corner between the base and free leg an approximately triangular space, and that to Biegearm leading leg in the immediate vicinity of the base adjacent first portion projects at right angles from this and via a subsequent V-shaped, directed away with the tip of the roof batten projecting first bend in a coaxially extending to the first region of the second region, the one via a second bend of the bending arm connects, said bend from the base has a distance equal to or greater than or as the height of the roof batten, wherein in assembly target position, the first region and the second region over its entire length against the second side surface of the roof batten , which face the first side surface is over.

This embodiment of the clip, in particular the first end portion of the clip, the problem is solved outstanding.

If applied in a provided with such brackets roofing on the roofing panels wind suction forces transmitted through the bending arm on the bracket, so twisting of the U-förniigen first end portion is excluded relative to the roof batten. It results from the fact that the batten is firmly clamped by the U-shaped first end portion of the clip. In the assembly target position, the base of the clip is supported on the underside of the roof batten, while the free leg is supported with its end on a first side surface of the roof batten. The other leg of the U-shaped first end portion is substantially flat against the second side surface of the roof clip. The roof batten is held clamped with its foot firmly between the free end of the first leg and the immediately adjacent to the base of the first portion of the other leg.

Movement possibilities of the clamp relative to the batten are thus excluded, especially in the case of wind suction loads. In particular, the clip with its first U-shaped end part can not rotate about the roof batten, so that a bending and slipping of the clip is prevented by the roof batten. Furthermore, the assembly is facilitated by the special design of the leg leading to Biegearm with its V-shaped outwardly projecting first bend. During assembly, the clip may first be inserted in an orientation in the gap between the formwork or underlay and the roof batten in which the clip is rotated relative to the mounting target position by 90 °, so that the first end portion of the clip parallel to the rear side surface of the Roof batten can be inserted into the existing gap. Subsequently, the clamp can be rotated by 90 ° in the mounting position. If tensile force is then exerted on the clamp, then the clamp engages the end of the free leg of the U-shape on the outside of the roof batten, whereas the leg leading to the bending arm contacts the leg surface of the V-shaped first bend remote from the base supported at the rear of the roof rail, wherein the lower rear corner of the roof batten is in the corner or peak formed by the V-shaped bend. The Montierende can then by traction (pulling on the bending arm) transfer the clip in the desired position in which it is pivoted about the quasi at the front of the batten tip of the free leg until the batten with respect to the base of the clip her Set position assumes, so the base rests against the underside of the roof batten. In this position, the immediately adjacent to the base first portion of the bending arm leading leg is located on the lower side region of the rear side surface of the roof batten and also following the V-shaped first bend second area, followed by the second bend of the bending arm. The clamp is thus transferred in a simple manner in the desired position, this assembly is also possible if the gap between formwork or underlayment is 24 mm or smaller, for example, up to 10 mm. The assembly is therefore possible because during assembly not the bending arm to the rear, in the direction of the underlay or the formwork must be moved, but the assembly of the clip is done by simple pulling movement of the Montierenden on Biegearm in the direction parallel to the rear surface of the roof batten or parallel for underlay or formwork.

It is particularly preferably provided that in a Vormontagelage the clip relative to the roof batten, the end of the free leg is supported on the first side surface of the roof batten at the desired distance from the bottom and the second side surface bears against the first leg of the V-shaped first bend, the is formed between the second region and the apex of the bend of the bend arm leading leg, wherein the lower rear corner of the batten is seated in the corner formed by the apex of the bend.

This Vormontagelage is already described above. The formation of the clip in the appropriate form allows this Vormontagelage and the final assembly of the clip on the batten without problems.

Preferably, it is provided that the angle enclosed by the legs of the V-shaped bend angle is blunt.

This training is particularly advantageous for the assembly of the clip, in which case in particular it is provided that the included angle is 120 ° to 140 °.

In order to achieve a secure fit of the clip in the final assembly position and on the other hand still to realize a simple assembly, it is also provided that the end of the free leg has a smaller distance from the base of the clip, as the tip of the V-shaped bend.

In particular, it is provided that the distance of the end of the free leg of the base of the clip is 4- to 6-fold wire thickness of the wire of the staple material.

Preferably, the distance is about 5 times the wire thickness.

Also, for secure seating and mounting, it is preferred that the distance of the tip of the V-shaped bend of the leg leading to the bending arm from the base be from 6 to 9 times the wire thickness of the staple material.

Preferably, the distance is about 7 times the wire thickness.

In order to promote in particular the secure fit in the assembly target position, it is provided that the length of the first region of the leg leading to the bending arm is twice to four times the wire thickness of the staple material.

It is preferred if the length of the first region corresponds to about 3 times the wire thickness of the staple material.

Although the legs need not be the same length, it is preferably provided that the legs of the V-shaped bend are the same length.

In order to be able to compensate for certain tolerances of the roof battens with respect to the base, it is also provided that the base of the U-shaped end portion of the clip is V-shaped, with legs of equal length, wherein the angle enclosed by the legs is obtuse, preferably 160 ° up to 175 °.

An angle of about 165 ° is preferred.

Finally, it is also preferably provided that the bending arm forms an obtuse angle with the second region of the leg leading to the bending arm.

The bending arm is angled in the direction of the free leg of the first end portion. Through this design, the assembly described above is promoted in tight gaps between batten and formwork or underlay.

It is preferably provided that the obtuse angle is 150 ° to 170 °.

An angle of about 165 ° is preferred.

An embodiment of the invention is illustrated in the drawing and described in more detail below.

Figur 1

eine Klammer in Bezug auf eine Dachlatte in einer Vormontagelage;

Figur 2

desgleichen in der Montagesolllage;

Figur 3

Dacheindeckungsplatten, die auf einer Dachlatte verlegt sind und mit einer entsprechenden Klammer fixiert und gesichert sind, in Seitenansicht;

Figur 4

desgleichen von hinten gesehen.

It shows:

FIG. 1

a bracket relative to a roof batten in a pre-assembly position;

FIG. 2

likewise in the assembly order situation;

FIG. 3

Roofing slabs, which are laid on a roof batten and fixed and secured with a corresponding clamp, in side view;

FIG. 4

likewise seen from behind.

In the drawing, a clip 1 is shown made of round wire, for fastening and securing of Roofing panels 2 is used, which are laid in a conventional manner on battens 3 a roof substructure. The formwork or underlay, on which in turn the roof batten 3 is moved at a distance of 24 mm or up to 10 mm, is not shown in the drawing.

The bracket 1 has a first end portion 4, which serves for attachment to a roof batten 3 and a second end portion 5, which serves for fastening and securing position of the roofing plate 2, wherein the second end portion can be hooked, for example, on a Seitenlängsfalz the roofing plate 2. The first end part 4 is connected to the second end part 5 via a bending arm 6. The first end part 4 is substantially U-shaped. This first U-shaped end part 4 has an area of its base 7 forming in the assembly target position (see FIG. 2 ) engages under the underside of a correspondingly dimensioned roof batten 3. To this base 7 connects a free leg 8, which is angled over the base by more than 90 °, for example by 110 °, so that it forms an angle of 70 ° with the base. In the assembly target situation, as in FIG. 2 shown, the free end of the free leg 8 is supported on the first side surface 9 of the roof batten 3 at a distance from the bottom 10 thereof. In the corner region between the base 7 and the free leg 8 there remains an approximately 3-sided free space 11. At the other end of the base 7, the limb leading to the bending arm 6 adjoins, which protrudes at right angles from the first base 12 adjacent to the immediate base 7. This angular position is based on a base 7 extending straight between the legs. If, as illustrated in the exemplary embodiment and described later, the base is slightly bent in the middle, the angular tasks relate to the imaginary straight training of the base. 7

To the first region 12 includes a V-shaped, with the tip 13 outwardly projecting first bend 14, which merges into a coaxial with the first region 12 extending second region 15, followed by a second bend 16 of the bending arm 6. This bend 16 has a distance from the base 7, which is at least equal to, preferably greater than the height of the roof batten 3, so that in the desired mounting position, the second bend 16 is above the roof batten 3, as in FIG. 2 is clarified.

In the assembly target situation, as in FIG. 2 illustrates, the first region 12 and the second region 15 in each case over its entire length to the second side surface 17 of the roof batten 3, which is opposite to the first side surface 9.

In a pre-assembly position, the in FIG. 1 is clarified, the end of the free leg 8 is supported in the first side surface 9 of the roof batten with a desired distance from the bottom 10 from. The second side surface 17 of the batten 3 abuts against the first leg 18 of the V-shaped first angled portion 14 which extends between the second region 15 and the tip 13 of the bend 14 of the leg leading to the bending arm is trained. In this case, the lower rear corner of the roof batten sits in the corner formed by the top of the V-shaped bend.

For assembly, the clip 1 can first be inserted into the gap between the roof batten 3 and the underlay or the like in a position in which they are opposite to the in FIG. 1 shown position rotated by 90 ° about its longitudinal axis (around the bending arm 6). Subsequently, the bracket 1 is rotated to the position in FIG. 1 is shown and the mounting member exerts a tensile force in the direction of the longitudinal extension of the bending arm 6, so that the bracket 1 is moved to a position as shown in FIG FIG. 1 is shown. Subsequently, the user continues to pull on the bending arm, so that the bracket 1 is rotated by pivoting about the end point of the free leg 8 on the side surface 9 until it reaches the desired position according to FIG. 2 occupies. In this desired position, the clamp is held securely in position between the one leg 8 and the region 12, so that the forces acting on the bending arm 6 by wind suction on the roof plate 2 forces can not lead to a rotation of the clip around the roof batten 3. The secure fit of the clip 1 on the roof batten 3 is thus guaranteed in the long term.

The included by the legs of the V-shaped bend 14 angle is an obtuse angle of preferably 120 ° to 140 °.

The end of the free leg 8 has less distance from the base 7 than the tip 13 of the V-shaped Angling 14. Preferably, the distance of the end of the free leg 8 from the base of the bracket 7 is about 4 to 6 times the wire thickness of the wire of the staple material. The distance of the tip 13 of the V-shaped bend 14 of the leg 6 leading to the bending arm 6 from the base 7 is preferably about 6 to 9 times the wire thickness of the staple material. The length of the first region 12 of the leg leading to the bending arm 6 is approximately twice to four times the wire thickness of the staple material. The legs of the V-shaped bend 14 are preferably the same length. Optionally, the base 7 of the U-shaped end part of the clip (1) may be V-shaped, as in particular in FIG FIG. 1 and FIG. 2 visible, preferably with legs of equal length, wherein the angle enclosed by the legs is obtuse. As a result, tolerances of the roof battens can be compensated.

Preferably, this angle is 160 ° to 175 °.

The bending arm 6 is connected to the second region 15 of the leg leading to the bending arm 6 with the inclusion of an obtuse angle, wherein the obtuse angle is preferably 150 ° to 170 °.

While in FIG. 1 and FIG. 2 the bracket 1 is shown with respect to the roof batten 3, is in the FIG. 3 shown a target mounting position in which the clip 1 is hooked both to the roof batten 3 and at the Seitenfalzkante a roofing plate. 2

In the FIG. 4 is the installation target position according to FIG. 3 shown from behind.

The invention is not limited to the embodiment, but in the context of the disclosure often variable.

All new, disclosed in the description and / or drawing single and combination features are considered essential to the invention.

Claims (12)

1. A clamp (1) made of metal, for instance sheet metal, preferably wire, for attaching and securing roofing boards (2) and roof tiles, the clamp (1) comprising a first end part (4) for attachment at a roof batten (3) or a corresponding part of a roof substructure, and a second end part (5) for attaching and securing the roofing board (2) or the roof tile, the first end part (4) being connected with the second end part (5) by a bending arm (6), and the first end part (4) being approximately U-shaped, the U-shaped first end part (4) including a section forming the base (7) thereof, which in the intended mounting position engages under the bottom side (10) of an appropriately dimensioned roof batten (3), a free leg (8) adjoining to the base (7) that is angled relative to the base (7) by more than 90° toward the base (7), and the leg leading to the bending arm (6) adjoining to the other end of the base (7), characterized in that in the intended mounting position, the free leg (8) is supported with its end on the first side face (9) of the roof batten (3) spaced to the bottom side (10) thereof, that in the corner section between base (7) and free leg (8) an approximately triangular free space (11) is left, and that the leg leading to the bending arm (6) projects at right angles from the base (7) in the first section (12) immediately adjacent thereto and merges, via an adjoining V-shaped first angular portion (14) having a tip (13) projecting from the roof batten (3), into a second section (15) extending coaxially with the first section (12), the bending arm (6) adjoining to said second section (15) via a second angular portion (16), said angular portion (16) having a distance to the base (7) that is equal to or greater than the height of the roof batten (3), in the intended mounting position the first section (12) and the second section (15) abutting over their complete length against the second side face (17) of the roof batten (3), which is opposite to the first side face (9).
2. The clamp according to claim 1, characterized in that in a pre-mounting position of the clamp (1) relative to the roof batten (3), the end of the free leg (8) is supported at the first side face (9) of the roof batten (3) in a desired distance to the bottom side (10) thereof, and the second side face (17) abuts against the first leg (18) of the V-shaped first angular portion (14) that is formed between the second section (18) and the tip (13) of the angular portion (14) of the leg leading to the bending arm (6), the lower rear corner of the roof batten (3) sitting in the corner formed by the tip (13) of the angular portion (14).
3. The clamp according to claim 1 or 2, characterized in that the angle included by the legs of the V-shaped angular portion (14) is obtuse.
4. The clamp according to claim 3, characterized in that the included angle is 120° to 140°.
5. The clamp according to one of claims 1 to 4, characterized in that the end of the free leg (8) has a smaller distance to the base (7) of the clamp (1) than the tip (13) of the V-shaped angular portion (14).
6. The clamp according to one of claims 1 to 5, characterized in that the distance of the end of the free leg (8) to the base (7) of the clamp (1) is 4 to 6 times the thickness of the wire of the clamp material.
7. The clamp according to one of claims 1 to 6, characterized in that the distance of the tip (13) of the V-shaped angular portion (14) of the leg leading to the bending arm (6) to the base (7) is 6 to 9 times the thickness of the clamp material.
8. The clamp according to one of claims 1 to 7, characterized in that the length of the first section (12) of the leg leading to the bending arm (6) is 2 to 4 times the thickness of the clamp material.
9. The clamp according to one of claims 1 to 8, characterized in that the legs of the V-shaped angular portion (14) have identical lengths.
10. The clamp according to one of claims 1 to 9, characterized in that the base (7) of the U-shaped end part (4) of the clamp (1) is V-shaped, with legs of identical lengths, the angle included by the legs being obtuse, preferably 160° to 175°.
11. The clamp according to one of claims 1 to 10, characterized in that the bending arm (6) includes with the second section (15) of the leg leading to the bending arm (6) an obtuse angle.
12. The clamp according to claim 11, characterized in that the obtuse angle is 150° to 170°.

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