EP3786386B1 - Fastening structure with retaining rail for different holding elements - Google Patents

Description

The present invention relates to a fastening structure, in particular for roofs, walls and/or facades, as well as a holder rail with a holding section and a pipe section.

Roof and facade constructions for larger roof areas, such as halls, are already known. Such roof and facade constructions form a fastening structure for arranging roofing membranes. The fastening structure is attached to a building and positions a large number of holding elements or clips. The holding elements are attached to the fastening structure and are usually torpedo-shaped in cross-section, so that roofing membranes are laid across the holding elements at the edges, transverse to their longitudinal direction. For this purpose, the roofing membranes are pre-formed at the edges.

Two roofing membranes laid in parallel usually overlap in the area of the retaining elements and can be connected to the evenly distributed retaining elements and thus also to the fastening structure by a deformation step.

Fastening structures are already known on which the holding elements are arranged in a fixed position. EP 1 147 270 B1 A fastening rail with an elongated recess and lateral clamping edges is known. Holding elements can be pressed or screwed into the recess in such a way that they are fixed in place by the lateral clamping edges. Such holding elements are usually manufactured as aluminum extrusions.

In addition, the WO 2017/108979 A1 A fastening structure is known that uses so-called tornado clips made of zinc die-casting. However, these tornado clips can be complex to manufacture.

The FR 2 865 667 A1 discloses a constant profile comprising on the one hand a C-shaped section and on the other hand a tubular section, wherein the C-shaped section adjoins the tubular section.

The WO 2011/063427 A1 discloses a connection system for panels, which comprises ball joint-like connectors and a base. The ball joint can be accommodated in a socket of the base.

The DE 27 08 699 A1 discloses a device for fastening a panel to a wall with supporting elements anchored in the wall and holding panel elements. The panel elements have a supporting profile that is guided in sliding pieces in a rotatable or displaceable manner at certain points via bead-like elevations. The sliding pieces are connected to brackets anchored in the wall.

The EP 3 020 884 A1 discloses a curtain wall construction comprising a base holder for connection to a building wall or substructure and a panel holder for connection to a facade panel.

The DE 199 49 926 C1 discloses a line system for fluids with a longitudinal channel for the fluid and a recess for receiving a fastening element for a connecting element.

The US 2001 / 0000268 A1 discloses a clamping arrangement with a slotted element.

The DE 1 20 525 reveals a profile for holding boards, panels or walls.

The known fastening structures are attached to a building surface via separate foot sections. The head section or the area of the roofing membranes serves to accommodate the holding elements and is fundamentally different from the foot sections. This means that a large number of different components are necessary to create such a fastening structure. Furthermore, the respective fastening structures are designed for a defined type or form of holding elements, so that subsequent changes or variations of the holding elements used to accommodate the roofing membranes are not possible.

It is the object of the present invention to eliminate the disadvantages of the prior art and to create a fastening structure which can be used universally for fastening different holding elements.

According to one aspect of the invention, a fastening structure, in particular for roofs, walls and/or facades, is provided according to claim 4. The fastening structure has at least one connecting support, wherein a head section and/or a foot section is arranged at the end of the connecting support.

The head section and/or the foot section have at least one holding rail with a holding section and a tube section as well as at least one fork element with two receiving legs and a fastening section.

According to the invention, the pipe section of the support rail can be connected to the connecting support at the end via the receiving legs of the fork element and the fastening section of the fork element. At least one The holding element can be connected to the head-side holding section of the at least one holding rail arranged in the head section by means of a positive connection, a non-positive connection and/or a screw connection.

By using such a holding rail, a head section of the fastening structure can be provided which is compatible with different holding elements. In particular, the holding section of the holding rail can be shaped in such a way that fixed point clips, tornado clips and holding elements that can be rotated or pressed into the holding section can be used. This makes it possible to vary or change the holding elements without changing the basic structure, such as the holding rail and the connecting supports. For example, the holding elements can be coupled to the holding section of the holding rail using self-tapping screws, welded connections, spot welded connections, riveted connections or clamped connections.

Furthermore, a fastening structure designed in this way enables the use of identical components for the foot section and the head section. This can reduce the costs for producing the fastening structure because the variety of components is reduced. The same fastening mechanisms are therefore used on the head section and the foot section of the at least one connecting support.

The fork element serves as a connecting element between a retaining rail and a connecting support. In particular, several fork elements with connecting supports can be attached to a retaining rail. The connecting support is preferably elongated, designed in the form of a connecting strut or a profile and has two end sections. Fork elements can be attached to both end sections of the connecting support, so that a retaining rail can be attached to both end sections of the connecting support. In particular, two retaining rails can be connected at a defined angle via several connecting supports and fork elements running parallel to one another. aligned with each other. A separate fastening for a foot section and a head section can be omitted with such a structure. For this purpose, the holding rail can be used to establish a connection to one or more holding elements or to establish a connection to a fastening surface.

A base section of the fastening structure can consist of one or more support rails that can be attached to a fastening surface, such as a roof, a wall or a facade. One or more fork elements can be attached to the support rail arranged at the base. Connecting supports can protrude from the base support rail via the fork elements and form a head section at the end. At the head section of the fastening structure, the connecting supports can merge into one or more head support rails via fork elements. Support elements of the same or different shapes for fastening roofing membranes or covering membranes can then be arranged on the head support rails.

The support rails can be designed as purlins, which can be used in the area of the fastening surface or in the area of the roofing membranes.

For example, several support rails can run parallel to each other at defined intervals and thus cover a fastening surface or be distributed over the fastening surface. The support elements can be attached to the head-side support rails in such a way that the roofing sheets or cover sheets run orthogonally or transversely to the support rails.

The retaining rails have a retaining section and a pipe section. The retaining section and the pipe section run parallel to each other in the longitudinal direction of the retaining rail. In particular, the retaining rail can be designed as a profile, which means that it can be produced cost-effectively using the extrusion process. Alternatively, the retaining section and the pipe section can be manufactured separately and are then connected to one another to form a support rail. The support rail forms a closed profile through the pipe section, which is particularly torsion-resistant and robust. Depending on the application, the pipe section can be filled or designed as a solid cylindrical material.

The tube section of the holding rail enables a rotational alignment of the holding rail relative to at least one fork element and thus also to the connecting support and the fastening surface. For this purpose, the fork element has at least two receiving legs, which form a receiving space. The receiving space has, at least in some areas, a shape that corresponds to a cross-sectional shape of the tube section, particularly preferably the shape of a circular segment, which corresponds to a circular segment-shaped outer cross-sectional shape of the tube section. In particular, the tube section can be rotatable within the receiving space of the receiving legs. When the holding rail is inserted into the receiving space of the fork element, the receiving legs of the fork element engage around the tube section of the holding rail.

After aligning the retaining rail on the at least one fork element, the receiving legs and the pipe section can be connected to one another in a detachable or permanent manner. For example, the fork element and the retaining rail can be coupled to one another using self-tapping screws, welded connections, spot welded connections, riveted connections or clamped connections. The respective connections or connecting means can be point-shaped, linear or flat at several positions on the fork element and/or the retaining rail.

At one end of the fork element opposite the receiving legs, the fork element has a fastening section. A connecting support can be inserted into the fastening section of the fork element at the end and connected to the fork element. To establish a connection between the The same fastening means can be used for the fastening section and the connecting support as for fastening the retaining rail. The entire fastening structure can preferably be constructed using one type of fastening means, such as self-tapping screws. The fastening section can encompass the connecting support at least in part or can be inserted into the connecting support on the inside.

According to one embodiment, the foot-side holding section of the holding rail can be connected to a fastening surface or surface, in particular a roof surface or a wall surface. The holding rail can thus be used equally in the head section and in the foot section of the fastening structure. In the foot section, the holding section of the holding rail is aligned with the fastening surface.

Preferably, the holding section can lie flat on the fastening surface and can be connected to the fastening surface. Preferably, the holding section of the foot-side holding rail can be connected to the fastening surface via screw connections. This means that complex components, such as foot-side ball joints, can be omitted and the fastening structure can be designed to be technically simpler. This measure means that the holding section of the holding rail can be used both to fasten holding elements to the holding rail and to fasten a foot-side holding rail to a fastening surface.

The connection between a fork element and a holding rail can be designed to be particularly variable if the receiving legs of the at least one fork element at least partially encompass the pipe section of the holding rail, wherein the holding rail is designed to be rotatable along an axis of rotation relative to the fork element. Preferably, the pipe section can be inserted or pushed into a receiving space between the fork elements in a form-fitting manner. This allows the retaining rail must be aligned relative to the fork element and thus also relative to the connecting support. After alignment, the receiving legs of the fork element can be connected to the pipe section of the retaining rail.

The fastening structure can be designed to be particularly robust if the receiving legs of the at least one fork element have a shape that corresponds to the pipe section. This allows a positive connection to be formed between the pipe section and the receiving legs, which has a high torsional rigidity. In addition, such a connection can create an additional frictional force between the pipe section and the receiving legs, which reduces possible shear forces on connection points or screws.

According to a further embodiment, the at least one fork element can be connected to the retaining rail and/or the connecting support via screw connections, clamp connections or welded connections. This allows the components of the fastening structure, which are preferably made of a metal or a metal alloy, to be connected to one another flexibly and quickly. Screw connections can be used to create a detachable connection between the components of the fastening structure, which can be subsequently released. By using self-tapping screws, the manufacturing effort for the components of the fastening structure can be further reduced, since no drilling is required in advance.

According to a further embodiment, at least two fork elements rotated relative to one another are fastened to the pipe section of the at least one head-side retaining rail by the receiving legs. A connecting support is fastened to each fork element by the fastening section, which ends in a foot section at a foot-side end. This makes it possible to provide a triangular structure which supports the head section via several connecting supports are positioned on the fastening surface by two foot sections. For example, this allows the structure to have a cross-sectional shape of an isosceles triangle, through which forces acting on the head section can be particularly efficiently diverted into the fastening surface.

In particular, a head-side retaining rail designed as a purlin can be attached to the fastening surface by a two-part structure consisting of two rows of parallel connecting supports, whereby each row of connecting supports can also be attached to a retaining rail on the foot side via fork elements. Such a fastening structure makes the head-side retaining rail suitable for particularly high loads.

According to a further aspect of the invention, a fork element is provided for use in a fastening structure according to the invention. The fork element has at least two rounded receiving legs which form a substantially circular receiving space. Furthermore, the fork element has a fastening section.

The at least two receiving legs are preferably arranged opposite one another and form a receiving space for a pipe section of the holding rail. The fastening section extends at an end of the fork element opposite the receiving legs.

Such a fork element can be attached on one side to a pipe section of the head-side and/or foot-side support rail and attached on one side to the connecting support via the attachment section. This allows the fork element to be used in both the head section and the foot section of the fastening structure.

According to one embodiment, the receiving legs are arranged on two opposite sides of the fork element. The receiving legs are preferably designed symmetrically or asymmetrically. In particular, an asymmetrical design of the receiving legs enables a particularly strong relative pivoting of the holding rail to the fork element.

If the support legs are designed symmetrically, they have the same extension or dimensions. Angles of 0° to 20° between the support rail and the fork element are possible.

If the support legs are asymmetrical, they have different extensions or different dimensions. This allows the purlin or the support rail to be pivoted around its longitudinal axis, in particular a rotation axis of the pipe section. In particular, an asymmetrical shape of the support legs allows an angle of 0° to 45° to be set between the fork element and the support rail. This makes it possible to achieve larger roof pitches, for example.

A maximum adjustable angle between the fork element and the holding rail can be set up particularly easily from a technical perspective if the receiving legs of the opposite sides of the fork element have different lengths.

According to a further aspect of the invention, a holding rail is provided. The holding rail has a holding section and a tube section. The holding section has an elongated extension in the longitudinal direction, along which the tube section and the holding section extend parallel to one another.

At an end of the holding section opposite the pipe section, one or more recesses can be provided, which are provided with clamping edges and/or at least one flange section. Due to the elongated shape of the retaining rail and the constant cross-section, for example, the retaining rail can be manufactured cost-effectively using an extrusion process, in particular from an aluminum alloy.

According to one embodiment, the holding section and the tube section of the holding rail are designed as one piece or as two parts of the holding rail that can be connected to one another. This allows the manufacturing process of the holding rail to be made more flexible. For example, the tube section and the holding section can be manufactured separately from one another and coupled to the holding rail by a subsequent connecting step. Depending on the shape of the holding rail, for example, a one-piece extrusion process or a manufacturing process with several steps can be advantageous, which can ensure cost-efficient production.

The holding rail can be used in a particularly simple way to set an angle around the longitudinal axis because the pipe section has a circular or circular segment-shaped cross section according to the invention. According to the invention, the cross section is formed by a circular segment which is larger than half a circle, preferably larger than 220°. A circular or circular segment-shaped cross section allows the receiving legs of the fork element to be pivoted along the pipe section or aligned in a rotational manner and then attached to the pipe section.

According to the invention, the holding section of the holding rail has an elongated recess with lateral clamping edges. The elongated recess with lateral clamping edges is arranged at an end of the holding section opposite the pipe section. The recess preferably extends in the longitudinal direction corresponding to an elongated extension of the holding rail. The lateral clamping edges can extend over the entire length of the holding rail or at least partially into the holding section of the Holding rail can be introduced. This means that the holding section can be suitable for receiving profile nuts and/or holding elements. For this purpose, according to the invention, laterally protruding sections of the holding elements can reach under the lateral clamping edges and hook into the holding section. According to the invention, the sections of the holding elements can reach under the lateral clamping edges by inserting the holding elements into the recess of the holding section and then rotating the holding elements.

The retaining rail can be attached to a fastening surface particularly efficiently if at least one flange section extends in a transverse direction from at least one clamping edge of the retaining section. The at least one flange section can preferably be used to accommodate so-called fixed point clips. According to the invention, the at least one flange section protrudes from the elongated recess in a wing-like manner and forms a connecting surface. The connecting surface can be pressed against the fastening surface and then screwed to the fastening surface. The at least one flange section can have through holes which allow screwing to fixed point clips or the fastening surface. Alternatively, the necessary through holes can be made in the flange sections using self-tapping screws. The head-side and foot-side retaining rails can preferably have one or two flange sections.

Alternatively, the head-side retaining rail and the foot-side retaining rail can have different flange sections. For example, the foot-side retaining rail can be designed without an elongated recess with lateral clamping edges.

The retaining rail can be designed as a hollow profile or as a solid profile. A retaining rail designed as a hollow profile can be provided with a particularly manufactured using minimal material, making the retaining rail particularly light. A retaining rail manufactured as a solid profile can be designed to be particularly robust mechanically.

Fig. 1

zeigt einen Schnitt durch eine Befestigungsstruktur gemäß einer Ausführungsform mit einem Winkel von 0° zwischen Gabelelementen und Halteschienen.

Fig. 2A, 2B

zeigen Darstellungen einer Befestigungsstruktur gemäß einer weiteren Ausführungsform mit einem Winkelausgleich im Fußabschnitt aus unterschiedlichen Perspektiven.

Fig. 3A-3C

zeigen Schnittdarstellungen von Befestigungsstrukturen mit unterschiedlich ausgestalteten Gabelelementen zum Verdeutlichen eines maximal möglichen Winkels zwischen den Gabelelementen und den Halteschienen.

Fig. 4A, 4B

zeigen Schnittdarstellungen von Kopfabschnitten, welche einen Vergleich zwischen einem symmetrischen und asymmetrischen Gabelelement veranschaulichen.

Fig. 5A, 5B

zeigen Schnittdarstellungen der Befestigungsstruktur gemäß einer weiteren Ausführungsform mit einem Winkelausgleich im Fußabschnitt und im Kopfabschnitt aus unterschiedlichen Perspektiven.

Fig. 6

zeigt einen Schnitt durch die Befestigungsstruktur aus der Fig. 5A mit einem als Festpunkt-Clip ausgestalteten Halteelement.

Fig. 7

zeigt eine Schnittdarstellung durch eine Befestigungsstruktur gemäß einer weiteren Ausführungsform mit einem zweiteiligen Fußabschnitt.

Fig. 8A, 8B

zeigen Schnittdarstellungen von in Halteabschnitten eingesetzten Halteelementen zum Veranschaulichen von Befestigungsmöglichkeiten.

The invention and the technical environment are explained in more detail below with reference to the figures. However, the invention is not limited to the embodiments shown. In particular, the invention includes, as far as it is technically reasonable, any combination of the technical features listed in the claims or described in the description as relevant to the invention.

Fig. 1

shows a section through a fastening structure according to an embodiment with an angle of 0° between fork elements and holding rails.

Fig. 2A, 2B

show representations of a fastening structure according to another embodiment with an angle compensation in the foot section from different perspectives.

Fig. 3A-3C

show sectional views of fastening structures with differently designed fork elements to illustrate a maximum possible angle between the fork elements and the retaining rails.

Fig. 4A, 4B

show cross-sectional views of head sections illustrating a comparison between a symmetrical and asymmetrical fork element.

Fig. 5A, 5B

show sectional views of the fastening structure according to a further embodiment with an angle compensation in the foot section and in the head section from different perspectives.

Fig. 6

shows a section through the fastening structure from the Fig. 5A with a holding element designed as a fixed point clip.

Fig. 7

shows a sectional view through a fastening structure according to another embodiment with a two-part foot section.

Fig. 8A, 8B

show sectional views of holding elements inserted in holding sections to illustrate fastening options.

In the figures, like or corresponding elements are designated by the same reference numerals. Factors such as numerical values, shapes, components, positions of components and the manner in which the components are connected to one another are merely illustrative and not restrictive. Different scales are used in some of the drawings for reasons of clarity and to improve recognition.

Fig. 1 shows a section through a fastening structure 1 according to an embodiment of the invention. The fastening structure 1 serves in particular to form a roof, a wall or a facade. For this purpose, the fastening structure 1 can be arranged on a fastening surface 2 and connected to the fastening surface 2. The fastening structure 1 shown in the figures is for illustration purposes only and represents only a part or a section of a fastening structure on or at a building.

The mounting surface 2 can be a surface of a top floor, a wall surface or the like.

The fastening structure 1 has at least one connecting support 4. The connecting support 4 is designed according to the embodiment as a rectangular profile formed. A head section 6 and a foot section 8 are arranged at the end of the connecting support 4.

The head section 6 of the fastening structure 1 has at least one fork element 10, at least one holding rail 12 and at least one holding element 14. The fork element 10 is fork-shaped in two directions. The fork element 10 is coupled to the connecting support 4 by means of a fastening section 16 via fastening means 18. The fastening means 18 surrounds the connecting support 4 at the end from two opposite sides 5. The fastening means 18 protrude through the fastening section 16 into the sides 5 of the connecting support 4.

The fork element 10 has at least two receiving legs 20, 21 at an end opposite the fastening section 16. The receiving legs 20, 21 form a substantially circular receiving space 22. A holding rail 12 can be inserted and fastened in the receiving space 22 between the receiving legs 20, 21. According to the exemplary embodiment, the receiving legs 20, 21 are designed to be symmetrical and in particular to be of equal length.

The holding rail 12 can also have an elongated shape and be designed as a profile. In particular, the holding rail 12 has a holding section 24 and a tube section 26, which run parallel to one another along an elongated extension of the holding rail 12.

The pipe section 26 is arranged in the receiving space 22 of the receiving legs 20, 21. Due to the curved shape of the receiving legs 20, 21, there is a positive connection between the pipe section 26 and the receiving legs 20, 21. In particular, the holding rail 12 can be pivoted relative to the fork element 10 via the pipe section 26. For this purpose, an angle A can be set between the holding rail 12 and the fork element 10. A fastening structure 1 with an angle A of 0° between the fork element 10 and the retaining rail 12 is shown schematically
A holding element 14 is arranged on the holding rail 12. The holding element 14 is designed as a clip and can be attached to the holding rail 12 by a rotating movement. For this purpose, the holding rail 12 has an elongated recess 28. Two lateral clamping edges 30 run on both sides of the recess 28. Two flange sections 32 also extend from the elongated recess 28, which run parallel to the clamping edges 30 and protrude beyond them.

To fasten the holding element 14, it is pushed into the elongated recess 28 and rotated by approximately 90° along its axis of rotation D, so that end clamping sections 17 of the holding element 14 engage with the lateral clamping edges 30.

According to the embodiment shown, different components are used for the head section 6 and the foot section 8. In contrast to the head section 6, the foot section 8 has a fastening rail 34 which can be screwed to the fastening surface 2 via fastening means 19 on the foot side. The connecting support 4 can be positioned at the end of the fastening rail 34 via fastening means 18. For this purpose, the fastening rail 34 has a section 36 which is similar to the fastening section 16 of the fork element 10.

A connection between two components can preferably be made by at least four fastening means 18, 19. Thus, the fork element 10 is connected to the pipe section 26 via at least four fastening means 18 and to the connecting support 4 via at least four fastening means 18.

The Fig. 2A and Fig. 2B show representations of a fastening structure 1 according to a further embodiment with an angle compensation in the foot section 8 from different perspectives. This can be achieved, for example, by that the fastening means 18 are designed as self-tapping screws. This allows an angle or an offset to be set before fastening the components, which is locked by inserting the fastening means.

The fastening structure 1 shown essentially corresponds to the fastening structure 1 from the Fig. 1 , whereby the screwing of the connecting support 4 in the foot section 8 is not orthogonal to the fastening rail 34 but at an angle B. By means of such an angle compensation, the vertical alignment of the at least one connecting support 4, which is required for static reasons, can be achieved. By means of the angle compensation, an inclination control in one direction can be carried out. Such an inclination correction is necessary if the fastening rail 34 cannot be mounted horizontally on the fastening surface 2.

The fastening means 18 can be screwed in where they are needed. By using self-tapping screws, pre-drilled components can be omitted, so that the fastening structure 1 can be manufactured more inexpensively.

Flange sections 32 and/or the fastening rail 34 can alternatively or additionally be pre-perforated or pre-drilled for the introduction of fastening means 18, 19.

In the Fig. 2B a view of the fastening structure 1 rotated by 90° along the axis of rotation D is shown. For example, the cross section of the holding element 14 for receiving roofing sheets (not shown) on the edge and the fastening of the connecting support 4 to the fastening rail 34 can be illustrated.

The Fig. 3A, Fig. 3B and Fig. 3C show representations of fastening structures 1 with differently designed fork elements 10 to illustrate a maximum possible angle A between the fork elements 10 and the support rails 12. The adjustable angle A can be used to compensate for the angle for tilt control in a second direction and to further increase the variability of the fastening structure 1. For this purpose, the Fig. 3A and Fig. 3B a fork element 10 with symmetrical receiving legs 20, 21 is shown.

In contrast to the Fig. 3A and Fig. 3B The fork element 10 in the Fig. 3C asymmetrically designed support legs 20, 21. The support legs 20, 21 are designed to be of different lengths so that the support rail 12 can be inclined particularly strongly on one side relative to the fork element 10. The asymmetrical profile of the fork element 10 can, for example, achieve a greater roof inclination.

Fig. 4A and Fig. 4B show sectional views of head sections 6, which illustrate a comparison between a symmetrical and asymmetrical fork element 10. In contrast to the Fig. 4A shown head section 6, the in Fig. 4B The head section 6 shown has a fork element 10 in which the receiving legs 20, 21 are of different lengths.

In particular, a first receiving leg 20 is longer and a second receiving leg 21 is shorter than in the Fig. 4A illustrated. This allows a maximum angle A of, for example, 45° to be set between the fork element 10 and the holding rail 12. With symmetrically designed receiving legs 20, 21, a maximum angle A of, for example, 20° is possible.

The Fig. 5A and Fig. 5B show representations of the fastening structure 1 according to a further embodiment with an angle compensation in the foot section 8 and in the head section 6 from different perspectives. In contrast to the In the embodiments already described, the head section 6 and the foot section 8 are constructed from the same components 10, 12.

Both the head section 6 and the foot section 8 have a fork element 10 which is designed asymmetrically such that the receiving legs 20, 21 are of different lengths.

In the exemplary embodiment, it is also made clear that the connecting support 4 can be connected to the fastening section 16 of the fork element 10 at different angles B. This makes it possible to compensate for angles in a y-direction.

Due to the rotatable arrangement of the pipe section 26 of the holding rail 12 and the receiving legs 20, 21 of the fork element 10 in advance, an angle compensation about a y-direction can be realized, in which the adjustable angle A is locked by introducing the fastening means 18.

Such a bidirectional angle compensation along the x-direction and along the y-direction is possible through the interaction of the fork element 10, the connecting support 4 and the holding rail 12 in both the head section 6 and the foot section 8 of the fastening structure 1.

A base plate 38 can be used to fasten the foot-side support rail 12 to a fastening surface 2. The fastening means 19 can protrude through pre-drilled holes 40. Preferably, the pre-drilled holes 40 are made both in the flange sections 32 and in the base plate 38.

The retaining element 14 used can be designed as a profile-shaped clip which can be screwed or inserted under the lateral clamping edges 30 of the retaining rail 12. Such a retaining element 14 can also be designed as a so-called tornado clip.

Fig. 6 shows a section through the fastening structure 1 from the Fig. 5A with a holding element 15 designed as a fixed point clip. In contrast to the holding elements 14 already shown, the fixed point clip 15 is fastened in the flange sections 32 of the holding rail 12 at a predefined position. For this purpose, the flange sections 32 can have internal threads already introduced into which fastening means 18 for fastening the fixed point clip 15 can be screwed. Alternatively, self-tapping screws can be used, which are screwed through the fixed point clip 15 and the flange sections 32.

In the Fig. 7 a sectional view through a fastening structure 1 according to a further embodiment with a two-part foot section 8 is shown. In contrast to the previously described embodiments, at least two connecting supports 4, 4' are provided, which are pivoted away from each other at a center point M of the head-side pipe section 26.

The respective connecting supports 4, 4' are attached to two fork elements 10, 10', which are connected to the holding rail 12 offset in the x direction. According to the embodiment, the connecting supports 4, 4' are of equal length and form an isosceles triangle. Alternatively, the connecting supports 4, 4' can have a different length.

The two-part foot section 8 consists of two holding rails 12, 12', which are arranged on the connecting supports 4, 4' via corresponding foot-side fork elements 10, 10'.

The at least one holding element 14 is designed here as a fixed point clip 15, for example.

Fig. 8A and Fig. 8B show sectional views of retaining elements 14, 15 inserted in support rails 42 to illustrate further Fastening options for holding elements 14, 15. The receiving rails 42 can be formed in the form of holding sections 24 of the holding rail 12. In particular, the receiving rails 42 can be connected directly to a fastening surface 2 via the fastening means 19.

The support rail 42 can be designed as a hollow profile into which self-tapping screws 18 can be inserted in order to arrange a fixed point clip 15. Furthermore, the support rails 42 also have clamping edges 30 into which, for example, tornado clips can be inserted.

In the Fig. 8A The support rail 42 has flange sections 32 which extend from the lateral clamping edges 30 in the y-direction. In the Fig. 8B the support rail 42 is designed without flange sections 32.

In addition, the support rail 42 has a base-side flange portion 44, via which the support rail 42 can be connected to a fastening surface 2.

Alternatively, the holding elements 14, 15 can be attached to holding sections 24 of the holding rail 12. For this purpose, the holding elements 14, 15 can be screwed into the flange sections 32 of the holding rail 12, for example.

The holding section 24 of the holding rail 12 can be shaped in such a way that fixed point clips 15, tornado clips and holding elements 14 that can be rotated or pressed into the holding section can be used. This makes it possible to vary or change the holding elements 14, 15 without changing the basic structure, such as the holding rail 12 and the 4 connecting supports. For example, the holding elements 14, 15 can be connected to the holding section 24, the flange sections 32 and/or the clamping edges 30 of the retaining rail 12.

list of reference symbols

1

fastening structure

2

mounting surface

4

connecting support

6

head section

8

foot section

10

fork element

12

support rail

14

holding element

15

fixed point clip / holding element

16

mounting section of the fork element

17

clamping section of the holding element

18

fasteners / self-tapping screws

19

fasteners of the mounting surface

20

first receiving leg

21

second receiving leg

22

receiving space between receiving legs

24

holding section of the holding rail

26

pipe section of the support rail

28

elongated recess/recess of the retaining rail

30

side clamping edge of the retaining rail

32

flange section of the support rail

34

foot-side mounting rail

36

mounting section of the mounting rail

38

base plate

40

pre-drilled holes

42

mounting rail

A

angle around the x-axis

B

angle around the y-axis

D

axis of rotation

M

center / axis of symmetry of the pipe section

x

longitudinal direction / longitudinal axis of the support rail

y

Transverse direction of the retaining rail / longitudinal direction of the retaining element

z

elevation direction

Claims (9)

1. A support rail (12), comprising a retaining section (24) and a pipe section (26),

   wherein the retaining section (24) has an elongate extension in the longitudinal direction (x), along which the pipe section (26) and the retaining section (24) extend parallel to one another,

   wherein a recess (28) extending in the longitudinal direction (x) with lateral clamping edges (30) for receiving retaining elements (14) is arranged at an end of the retaining section (24) opposite the pipe section (26), wherein the clamping edges (30) are designed such that laterally protruding portions of the retaining elements (14) can engage under the lateral clamping edges by inserting the retaining elements into the recess (28) of the retaining section and subsequently rotating the retaining elements,

   wherein the pipe section has a circular or circular-segment-shaped cross section, wherein the cross section is formed by a circular segment which is larger than one half of a circle, so that circular-segment-shaped mounting brackets of a fork element can be pivoted or rotationally aligned along the pipe section by the circular or circular-segment-shaped cross section and subsequently fastened to the pipe section,

   characterized in that

   at least one flange section (32) for receiving fixed-point clips (15) extends in a transverse direction (y) from at least one of the clamping edges (30) of the retaining section (24), and in that the at least one flange section (32) projects in the shape of a wing from the elongate recess and forms a connecting surface.
2. Support rail according to claim 1, wherein the retaining section (24) and the pipe section (26) of the support rail (12) are designed in one piece or as two parts of the support rail (12) which can be connected to one another.
3. Support rail according to one of the previous claims, wherein the support rail (12) is designed as a hollow profile or as a full profile.
4. Fastening structure (1), in particular for roofs, walls and/or facades, having at least one connecting support (4), on which a head section (6) and/or a base section (8) is/are arranged at the end, the head section (6) and/or the base section (8) having at least one support rail (12) with a retaining section (24) and a pipe section (26) and at least one fork element (10) with two receiving legs (20, 21) and a fastening section (16), the pipe section (26) of the support rail (12) being connected to the connecting support (4) via the receiving legs (20, 21) of the fork element (10) and the fastening section (16),

   wherein the pipe section (26) of the support rail (12) can be connected at the end to the connecting support (4) via the mounting brackets (20, 21) of the fork element (10) and the fastening section (16),

   wherein at least one retaining element (14) can be connected to the head-side retaining section (24) of the at least one support rail (12) of the head section (6) by a form-fit connection, a force-fit connection and/or a screw connection,

   characterized in that the support rail (12) is a support rail (12) according to any one of the previous claims.
5. Fastening structure according to claim 4, wherein the base-side retaining section (24) of the support rail (12) is connected or connectable to a fastening surface (2), in particular a roof surface or a wall surface.
6. Fastening structure according to claim 4 or 5, wherein the mounting brackets (20, 21) of the at least one fork element (10) embrace the pipe section (26) of the support rail (12) at least in certain regions, wherein the support rail (12) is designed to be rotatable along an axis of rotation (M) relative to the fork element (10).
7. The fastening structure according to any one of claims 4 to 6, wherein the mounting brackets (20, 21) of the at least one fork element (10) have a shape corresponding to the pipe section (26).
8. The fastening structure according to any one of claims 4 to 7, wherein the at least one fork element (10) is connected or connectable to the support rail (12) and/or the connecting support (4) via screw connections, clamp connections or welded connections.
9. Fastening structure according to one of claims 4 to 8, wherein at least two fork elements (10, 10') twisted relative to one another are fastened to the pipe section (26) of the at least one head-side support rail (12) by the mounting brackets (20, 21), wherein a respective connecting support (4, 4') is fastened to each fork element (10, 10') by the fastening section (16), which connecting support leads to a base section (8) at a base-side end.

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