WO2014020006A1 - Fastening element for mounting solar modules or solar collectors on a roof, and pitched roof having a fastening element - Google Patents

Fastening element for mounting solar modules or solar collectors on a roof, and pitched roof having a fastening element Download PDF

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Publication number
WO2014020006A1
WO2014020006A1 PCT/EP2013/065954 EP2013065954W WO2014020006A1 WO 2014020006 A1 WO2014020006 A1 WO 2014020006A1 EP 2013065954 W EP2013065954 W EP 2013065954W WO 2014020006 A1 WO2014020006 A1 WO 2014020006A1
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WO
WIPO (PCT)
Prior art keywords
hook
fastening element
roof
base part
latching
Prior art date
Application number
PCT/EP2013/065954
Other languages
German (de)
French (fr)
Inventor
Klaus Schwerdtfeger
Gerald Schreiber
Original Assignee
Hilti Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti Aktiengesellschaft filed Critical Hilti Aktiengesellschaft
Priority to EP13742638.3A priority Critical patent/EP2880374A1/en
Publication of WO2014020006A1 publication Critical patent/WO2014020006A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/63—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing modules or their peripheral frames to supporting elements
    • F24S25/634—Clamps; Clips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/61—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures
    • F24S25/613—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures in the form of bent strips or assemblies of strips; Hook-like connectors; Connectors to be mounted between building-covering elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S2025/6002—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules by using hooks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S2025/6004—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules by clipping, e.g. by using snap connectors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking

Definitions

  • Fastening element for mounting solar modules or solar collectors on a roof and pitched roof with a fastening element
  • the invention relates to a fastening element for mounting solar modules or solar collectors on a roof, with a base part which can be mounted on the roof, and a hook part which can be fixed by means of a pivot-latching mechanism on the base part. Furthermore, the invention relates to a pitched roof with such a fastener.
  • fasteners in the form of so-called roof hooks are used, which form part of the support structure. These fasteners are hook-shaped so that they can embrace the tiles, and are bolted at one end to the rafters or possibly the roof battens of the house. At the other end they carry a rail construction for the solar modules or solar collectors or the modules / collectors directly themselves.
  • a fastener of the type mentioned that the pivot-latch mechanism can be hooked to the base part Includes connecting hook and a snap closure, which are spaced apart in the longitudinal direction of the hook portion.
  • the longitudinal direction of the hook part which engages in the assembled state, the roof tile, just the lever arm under load, and the connecting hook defines the axis of rotation. Since, therefore, in the embodiment according to the invention, the latching closure and the connecting hooks are spaced apart from one another, the latching closure can not or not easily be released under load, as is the case with the arrangement known from the prior art. Rather, in the fastener according to the invention by the chosen geometries ensured that weight loads, such as a snow load occurring in winter, act on the snap-lock in the latching direction, whereby the latching connection is particularly stable.
  • the hook part is in particular U-shaped, and the position of the snap closure divides the length of the roof facing the leg approximately in the ratio 1: 2 or 1: 1.
  • the connecting hook and the latching closure at a distance from each other, which substantially corresponds to a width of the base part.
  • the hook portion is formed substantially U-shaped, wherein on a first leg of the pivot-latching mechanism is arranged and on a second leg, the solar module or the solar collector can be set.
  • a fastener is easy to produce and is well suited by its shape to surround the roof tiles of the roof.
  • connection hook is arranged at the free end of the first leg of the hook part. This facilitates hanging the connection hook on the base part and thus the mounting of the fastener.
  • connection hook engages behind a projection on the base part in the suspended state. That's how it is ensures that the connection hook does not become undesirable when the hook part engages.
  • the latching closure comprises a web formed on the hook part with a latching nose, which engages behind a projection on the base part in the locked state.
  • the connection hook thus results in a secure connection of the base part and hook part.
  • the hook part In order to initiate the forces acting on the fastening element and in particular the hook part forces, for example a high snow load in winter, in the base part and thus the roof, the hook part preferably has a stop web, which is arranged between the connecting hook and snap lock. With this, the hook part can be supported in the mounted state on the base part.
  • a projecting stop web also has the advantage that the base part can have a comparatively small height, which results in material savings and permits installation with short screws.
  • the stop web is arranged in the immediate vicinity of the latching closure, whereby a deformation of the latching closure under load is largely prevented.
  • a particularly cost-effective embodiment results from the fact that the base part as a rail, so as a standard component is formed.
  • the above-mentioned object is also achieved by a pitched roof with a fastening element, as described above, wherein the connecting hook in the mounted state on the roof is located on the higher side of the base part.
  • the connection hook absorbs the forces directed downwards, and the latching closure prevents lifting of the hook part, for example due to wind suction.
  • a load acting on the hook part acts on the hook part around the connecting hook in the sense of latching of the latching closure. This facilitates on the one hand the assembly, on the other hand, a release of the hook member is prevented under load.
  • FIG. 1 is a perspective view of a fastener according to the invention, wherein the hook part is mounted in the base part;
  • FIG. 2 is a perspective view of the fastener of Figure 1, which illustrates the engagement of the hook portion
  • - Figure 3 is a perspective view of the fastener in the locked state of the hook part
  • FIG. 4 is a schematic side view of a pitched roof according to the invention with the fastener of Figures 1 to 3.
  • FIGS 1 to 3 show a fastener 10, with the solar modules as part of a photovoltaic system or solar panels as part of a solar thermal system on a roof, in particular a pitched roof, can be set.
  • the fastener 10 has a base portion 12 which is formed as a rail with a plurality of parallel projections and fixed on the roof, in particular screwed to the rafters.
  • the fastening element 10 comprises a hook part 14 which is substantially U-shaped.
  • a pivot-locking mechanism is provided which comprises a hook-on base member 12 connecting hooks 18 and a snap fastener 20 which are spaced apart in the longitudinal direction L of the hook portion 14.
  • the latching closure 20 is located between the connecting hook 18, which is arranged at the free end of the first leg 16 of the hook portion 14, and a center leg 22 of the hook portion 14.
  • a subsequent to the center leg 22 second leg 24 of the hook portion 14 serves to set the solar module or the solar collector (not shown).
  • the second leg 24 has a slot 26 in which by means of a screw 28, a holder 30 is slidably mounted. The solar module or the solar collector or a rail construction connected thereto can then be clipped onto the holder 30.
  • the first leg 16 is slightly angled in the region which lies above the base part 12 in the mounted state and thereby further opened (see also FIG. 4).
  • the snap fastener 20 is disposed on the first leg 16 and divides its length approximately in the ratio 1: 2, that is, the part of the first leg 16 which projects beyond the base part 12 is approximately twice as long as the part which extends over the base part 12 is located.
  • the second leg 24 ends approximately at the height of the latching closure 20 on the first leg 16.
  • FIG. 1 now shows a first step for connecting the hook part 14 to the base part 12, in which the connection hook 18 is suspended in the base part 12 such that the connection hook 18 has a projection 32 on the base part 12, more precisely at a first end of the base part 12. engages behind (see arrow P ⁇ . In this case, the connecting hooks 18 in the suspended state upwards, so when mounted on the roof in approximately skyward.
  • the hook part 14 is locked by a pivoting movement, indicated by the arrow P 2 in Figure 2, in the base part 12, wherein an integrally formed on the hook part 14 web 34 with an end attached thereto locking lug 36th a projection 38 on the base part 12 engages behind.
  • the projection 38 is disposed on the opposite with respect to the connecting hook 18 end of the base part 12.
  • the web 34 with the latching nose 36 forms the latching closure 20, which defines the hook part 14 on the base part 12 in combination with the projection 38.
  • the hook part 14 also has a stop web 40, which is arranged between the connecting hook 18 and the snap fastener 20 in the immediate vicinity of the snap fastener 20.
  • the stop web 40 is integrally formed on the hook part 14 and points in the figures downwards, namely towards the base part 12.
  • the hook part 14 In the locked state of the hook part 14 on the base part 12 (FIG. 3), the hook part 14 is supported via the stop web 40 on a stop face 42 of the base part 12.
  • Figure 4 shows the fastener 10 in the mounted state on a pitched roof 44, which has an inclination ⁇ to the horizontal.
  • the base member 12 is mounted on the roof 44, in particular bolted to the rafters (not shown), wherein the multi-part design of the fastener 10 facilitates assembly.
  • the connection hook 18 In the assembled Condition is the connection hook 18 on the higher side of the base part 12, in Figure 4 so right.
  • the connecting hook 18 receives the forces directed downwards, and the latching closure 20 prevents lifting, for example due to wind suction.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

A fastening element (10) for mounting solar modules or solar collectors on a roof, in particular a pitched roof, has a base part (12), which can be attached to the roof, and a hook part (14), which can be attached to the base part (12) by means of a pivoting/latching mechanism, wherein the pivoting/latching mechanism comprises a connecting hook (18), which can be suspended from the base part (12), and also a latching closure (20), said connecting hook and latching closure being spaced apart from one another in the longitudinal direction (L) of the hook part (14).

Description

Befestigungselement zur Montage von Solarmodulen bzw. Solarkollektoren auf einem Dach sowie Schrägdach mit einem Befestigungselement  Fastening element for mounting solar modules or solar collectors on a roof and pitched roof with a fastening element
Die Erfindung betrifft ein Befestigungselement zur Montage von Solarmodulen bzw. Solarkollektoren auf einem Dach, mit einem Basisteil, das auf dem Dach befestigt werden kann, und einem Hakenteil, das mittels eines Schwenk-Einrast-Mechanismus am Basisteil befestigt werden kann. Weiterhin betrifft die Erfindung ein Schrägdach mit einem solchen Befestigungselement. The invention relates to a fastening element for mounting solar modules or solar collectors on a roof, with a base part which can be mounted on the roof, and a hook part which can be fixed by means of a pivot-latching mechanism on the base part. Furthermore, the invention relates to a pitched roof with such a fastener.
Zur Befestigung von Solarmodulen für Photovoltaikanlagen bzw. Solarkollektoren für Solarthermieanlagen auf Dächern, insbesondere Schrägdächern, werden Befestigungselemente in Form sogenannter Dachhaken verwendet, die Teil der Tragekonstruktion bilden. Diese Befestigungselemente sind hakenförmig ausgebildet, damit sie die Dachziegel umgreifen können, und werden an einem Ende mit den Dachsparren oder ggf. den Dachlatten des Hauses verschraubt. An ihrem anderen Ende tragen sie eine Schienenkonstruktion für die Solarmodule bzw. Solarkollektoren oder die Module/Kollektoren unmittelbar selbst. For fastening solar modules for photovoltaic systems or solar collectors for solar thermal systems on roofs, especially pitched roofs, fasteners in the form of so-called roof hooks are used, which form part of the support structure. These fasteners are hook-shaped so that they can embrace the tiles, and are bolted at one end to the rafters or possibly the roof battens of the house. At the other end they carry a rail construction for the solar modules or solar collectors or the modules / collectors directly themselves.
Die DE 20 2005 004 348 111 beschreibt ein Befestigungselement mit einer Grundplatte, die auf dem Dach festgeschraubt wird, und einem Hakenteil, das in die Grundplatte eingeclipst wird und mit diesem zusammen den Dachhaken bildet. Nachteilig bei diesem bekannten Dachhaken ist, dass Gewichts- und Schneelasten durch den relativ ungünstigen langen Hebelarm zu einem unerwünschten Lösen der Clipverbindung unter Last führen können. DE 20 2005 004 348 111 describes a fastening element with a base plate, which is screwed onto the roof, and a hook part, which is clipped into the base plate and together with this forms the roof hook. A disadvantage of this known roof hooks that weight and snow loads can lead to an undesirable loosening of the clip connection under load due to the relatively unfavorable long lever arm.
Es ist daher Aufgabe der Erfindung, ein Befestigungselement bzw. ein Schrägdach mit einem Befestigungselement bereitzustellen, das diese Nachteile des Stands der Technik vermeidet. Erfindungsgemäß ist dazu bei einem Befestigungselement der eingangs genannten Art vorgesehen, dass der Schwenk-Einrast-Mechanismus einen am Basisteil einhängbaren Verbindungshaken sowie einen Rastverschluss umfasst, die in Längsrichtung des Hakenteils voneinander beabstandet sind. Dabei entspricht die Längsrichtung des Hakenteils, das im montierten Zustand die Dachziegel umgreift, gerade dem Hebelarm unter Last, und der Verbindungshaken legt die Drehachse fest. Da also bei der erfindungsgemäßen Ausgestaltung der Rastverschluss und der Verbindungshaken voneinander beabstandet sind, kann sich der Rastverschluss unter Last nicht bzw. nicht so leicht lösen, wie dies bei der aus dem Stand der Technik bekannten Anordnung der Fall ist. Vielmehr ist beim erfindungsgemäßen Befestigungselement durch die gewählten Geometrien dafür gesorgt, dass Gewichts lasten, beispielsweise eine im Winter auftretende Schneelast, den Rastverschluss in Einrastrichtung beaufschlagen, wodurch die Rastverbindung besonders stabil ist. It is therefore an object of the invention to provide a fastener or a pitched roof with a fastener that avoids these disadvantages of the prior art. According to the invention, this is provided in a fastener of the type mentioned that the pivot-latch mechanism can be hooked to the base part Includes connecting hook and a snap closure, which are spaced apart in the longitudinal direction of the hook portion. In this case, the longitudinal direction of the hook part which engages in the assembled state, the roof tile, just the lever arm under load, and the connecting hook defines the axis of rotation. Since, therefore, in the embodiment according to the invention, the latching closure and the connecting hooks are spaced apart from one another, the latching closure can not or not easily be released under load, as is the case with the arrangement known from the prior art. Rather, in the fastener according to the invention by the chosen geometries ensured that weight loads, such as a snow load occurring in winter, act on the snap-lock in the latching direction, whereby the latching connection is particularly stable.
Als besonders günstige Geometrie hat sich herausgestellt, wenn der Rastverschluss zwischen dem Verbindungshaken und einem Mittelschenkel des Hakenteils angeordnet ist. Das Hakenteil ist dabei insbesondere U-förmig ausgebildet, und die Position des Rastverschlusses teilt die Länge des dem Dach zugewandten Schenkels etwa im Verhältnis 1 : 2 oder 1 : 1. As a particularly favorable geometry has been found when the latching closure between the connecting hook and a center leg of the hook part is arranged. The hook part is in particular U-shaped, and the position of the snap closure divides the length of the roof facing the leg approximately in the ratio 1: 2 or 1: 1.
Gemäß einer bevorzugten Ausführungsform der Erfindung weisen der Verbindungshaken und der Rastverschluss einen Abstand voneinander auf, der im Wesentlichen einer Breite des Basisteils entspricht. Dadurch ergibt sich eine besonders einfache Montage, da zunächst der Verbindungshaken an einem Ende des Basisteils eingehängt wird, und anschließend der Rastverschluss durch eine Schwenkbewegung am gegenüberliegenden Ende des Basisteils eingerastet wird. According to a preferred embodiment of the invention, the connecting hook and the latching closure at a distance from each other, which substantially corresponds to a width of the base part. This results in a particularly simple assembly, since first the connecting hook is hooked to one end of the base part, and then the snap-lock is locked by a pivoting movement at the opposite end of the base part.
Vorzugsweise ist das Hakenteil im Wesentlichen U-förmig ausgebildet, wobei an einem ersten Schenkel der Schwenk-Einrast-Mechanismus angeordnet ist und an einem zweiten Schenkel das Solarmodul bzw. der Solarkollektor festgelegt werden kann. Ein solches Befestigungselement lässt sich einfach herstellen und ist durch seine Form gut geeignet, die Dachziegel des Daches zu umgreifen. Preferably, the hook portion is formed substantially U-shaped, wherein on a first leg of the pivot-latching mechanism is arranged and on a second leg, the solar module or the solar collector can be set. Such a fastener is easy to produce and is well suited by its shape to surround the roof tiles of the roof.
Insbesondere ist der Verbindungshaken am freien Ende des ersten Schenkels des Hakenteils angeordnet. Dies erleichtert das Einhängen des Verbindungshakens am Basisteil und damit die Montage des Befestigungselements. In particular, the connection hook is arranged at the free end of the first leg of the hook part. This facilitates hanging the connection hook on the base part and thus the mounting of the fastener.
Eine besonders stabile Verbindung ergibt sich, wenn der Verbindungshaken im eingehängten Zustand einen Vorsprung am Basisteil hintergreift. So ist außerdem sichergestellt, dass sich der Verbindungshaken beim Einrasten des Hakenteils nicht unerwünscht löst. A particularly stable connection results when the connection hook engages behind a projection on the base part in the suspended state. That's how it is ensures that the connection hook does not become undesirable when the hook part engages.
Bevorzugt umfasst der Rastverschluss einen am Hakenteil angeformten Steg mit einer Rastnase, die im eingerasteten Zustand einen Vorsprung am Basisteil hintergreift. In Kombination mit dem Verbindungshaken ergibt sich somit eine sichere Verbindung von Basisteil und Hakenteil. Preferably, the latching closure comprises a web formed on the hook part with a latching nose, which engages behind a projection on the base part in the locked state. In combination with the connection hook thus results in a secure connection of the base part and hook part.
Um die auf das Befestigungselement und insbesondere das Hakenteil wirkenden Kräfte, beispielsweise eine hohe Schneelast im Winter, in das Basisteil und damit das Dach einzuleiten, weist das Hakenteil vorzugsweise einen Anschlagsteg auf, der zwischen Verbindungshaken und Rastverschluss angeordnet ist. Mit diesem kann sich das Hakenteil im montierten Zustand am Basisteil abstützen. Ein vorstehender Anschlagsteg hat zudem den Vorteil, dass das Basisteil eine vergleichsweise geringe Höhe aufweisen kann, was eine Materialersparnis mit sich bringt und eine Montage mit kurzen Schrauben erlaubt. In order to initiate the forces acting on the fastening element and in particular the hook part forces, for example a high snow load in winter, in the base part and thus the roof, the hook part preferably has a stop web, which is arranged between the connecting hook and snap lock. With this, the hook part can be supported in the mounted state on the base part. A projecting stop web also has the advantage that the base part can have a comparatively small height, which results in material savings and permits installation with short screws.
Vorteilhaft ist der Anschlagsteg in unmittelbarer Nähe des Rastverschlusses angeordnet, wodurch eine Verformung des Rastverschlusses unter Last weitgehend verhindert wird. Advantageously, the stop web is arranged in the immediate vicinity of the latching closure, whereby a deformation of the latching closure under load is largely prevented.
Eine besonders kostengünstige Ausgestaltung ergibt sich dadurch, dass das Basisteil als Profilschiene, also als Standardbauteil, ausgebildet ist. A particularly cost-effective embodiment results from the fact that the base part as a rail, so as a standard component is formed.
Die eingangs genannte Aufgabe wird ebenfalls gelöst durch ein Schrägdach mit einem Befestigungselement, wie es zuvor beschrieben wurde, wobei der Verbindungshaken im montierten Zustand auf dem Dach sich auf der höher liegenden Seite des Basisteils befindet. So wird das Einrasten des Hakenteils durch die Schwerkraft unterstützt. Im eingerasteten Zustand nimmt der Verbindungshaken die dachabwärts gerichteten Kräfte auf, und der Rastverschluss verhindert ein Abheben des Hakenteils, beispielsweise aufgrund von Windsog. Vorzugsweise beaufschlagt dabei eine auf das Hakenteil wirkende Last das Hakenteil um den Verbindungshaken im Sinne des Einrastens des Rastverschlusses. Dies erleichtert zum einen die Montage, zum anderen wird ein Lösen des Hakenteils unter Last verhindert. The above-mentioned object is also achieved by a pitched roof with a fastening element, as described above, wherein the connecting hook in the mounted state on the roof is located on the higher side of the base part. Thus, the engagement of the hook part is supported by gravity. In the locked state, the connection hook absorbs the forces directed downwards, and the latching closure prevents lifting of the hook part, for example due to wind suction. Preferably, a load acting on the hook part acts on the hook part around the connecting hook in the sense of latching of the latching closure. This facilitates on the one hand the assembly, on the other hand, a release of the hook member is prevented under load.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung einer bevorzugten Ausführungsform anhand der beigefügten Zeichnung. In dieser zeigt: - Figur 1 eine perspektivische Ansicht eines erfindungsgemäßen Befestigungselements, wobei das Hakenteil in das Basisteil eingehängt ist; Further features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the accompanying drawings. In this shows: - Figure 1 is a perspective view of a fastener according to the invention, wherein the hook part is mounted in the base part;
- Figur 2 eine perspektivische Ansicht des Befestigungselements aus Figur 1 , die das Einrasten des Hakenteils verdeutlicht; - Figur 3 eine perspektivische Ansicht des Befestigungselements im eingerasteten Zustand des Hakenteils; und - Figure 2 is a perspective view of the fastener of Figure 1, which illustrates the engagement of the hook portion; - Figure 3 is a perspective view of the fastener in the locked state of the hook part; and
- Figur 4 eine schematische Seitenansicht eines erfindungsgemäßen Schrägdaches mit dem Befestigungselement aus den Figuren 1 bis 3. - Figure 4 is a schematic side view of a pitched roof according to the invention with the fastener of Figures 1 to 3.
Die Figuren 1 bis 3 zeigen ein Befestigungselement 10, mit dem Solarmodule als Teil einer Photovoltaikanlage bzw. Solarkollektoren als Teil einer Solarthermieanlage auf einem Dach, insbesondere einem Schrägdach, festgelegt werden können. Das Befestigungselement 10 weist ein Basisteil 12 auf, das als Profilschiene mit mehreren parallel verlaufenden Vorsprüngen ausgebildet ist und auf dem Dach befestigt, insbesondere mit den Dachsparren verschraubt wird. Ferner umfasst das Befestigungselement 10 ein Hakenteil 14, das im Wesentlichen U- förmig ausgebildet ist. An einem ersten Schenkel 16 des Hakenteils 14 ist ein Schwenk- Einrast-Mechanismus vorgesehen, der einen am Basisteil 12 einhängbaren Verbindungshaken 18 sowie einen Rastverschluss 20 umfasst, die in Längsrichtung L des Hakenteils 14 voneinander beabstandet sind. Wie aus den Figuren ersichtlich, befindet sich der Rastverschluss 20 zwischen dem Verbindungshaken 18, der am freien Ende des ersten Schenkels 16 des Hakenteils 14 angeordnet ist, und einem Mittelschenkel 22 des Hakenteils 14. Dabei entspricht der Abstand des Verbindungshakens 18 und des Rastverschlusses 20 im Wesentlichen der Breite B des Basisteils 12. Ein an den Mittelschenkel 22 anschließender zweiter Schenkel 24 des Hakenteils 14 dient dazu, das Solarmodul bzw. den Solarkollektor (nicht gezeigt) festzulegen. Zu diesem Zweck hat der zweite Schenkel 24 ein Langloch 26, in dem mittels einer Schraube 28 eine Halterung 30 verschiebbar befestigt ist. An der Halterung 30 kann dann das Solarmodul bzw. der Solarkollektor oder eine mit diesem verbundene Schienenkonstruktion eingeclipst werden. Der erste Schenkel 16 ist im Bereich, der im montierten Zustand über dem Basisteil 12 liegt, etwas abgewinkelt und dadurch weiter geöffnet (siehe auch Figur 4). Der Rastverschluss 20 ist am ersten Schenkel 16 angeordnet und teilt dessen Länge in etwa im Verhältnis 1 : 2, das heißt, der Teil des ersten Schenkels 16, der über das Basisteil 12 hinausragt, ist annähernd doppelt so lang wie der Teil, der sich über dem Basisteil 12 befindet. Der zweite Schenkel 24 endet ungefähr auf Höhe des Rastverschlusses 20 am ersten Schenkel 16. Figures 1 to 3 show a fastener 10, with the solar modules as part of a photovoltaic system or solar panels as part of a solar thermal system on a roof, in particular a pitched roof, can be set. The fastener 10 has a base portion 12 which is formed as a rail with a plurality of parallel projections and fixed on the roof, in particular screwed to the rafters. Furthermore, the fastening element 10 comprises a hook part 14 which is substantially U-shaped. On a first leg 16 of the hook portion 14, a pivot-locking mechanism is provided which comprises a hook-on base member 12 connecting hooks 18 and a snap fastener 20 which are spaced apart in the longitudinal direction L of the hook portion 14. As can be seen from the figures, the latching closure 20 is located between the connecting hook 18, which is arranged at the free end of the first leg 16 of the hook portion 14, and a center leg 22 of the hook portion 14. In this case corresponds to the distance of the connecting hook 18 and the latching closure 20 in Substantially the width B of the base part 12. A subsequent to the center leg 22 second leg 24 of the hook portion 14 serves to set the solar module or the solar collector (not shown). For this purpose, the second leg 24 has a slot 26 in which by means of a screw 28, a holder 30 is slidably mounted. The solar module or the solar collector or a rail construction connected thereto can then be clipped onto the holder 30. The first leg 16 is slightly angled in the region which lies above the base part 12 in the mounted state and thereby further opened (see also FIG. 4). The snap fastener 20 is disposed on the first leg 16 and divides its length approximately in the ratio 1: 2, that is, the part of the first leg 16 which projects beyond the base part 12 is approximately twice as long as the part which extends over the base part 12 is located. The second leg 24 ends approximately at the height of the latching closure 20 on the first leg 16.
Figur 1 zeigt nun einen ersten Schritt zur Verbindung des Hakenteils 14 mit dem Basisteil 12, bei dem der Verbindungshaken 18 so in das Basisteil 12 eingehängt wird, dass der Verbindungshaken 18 einen Vorsprung 32 am Basisteil 12, genauer an einem ersten Ende des Basisteils 12, hintergreift (siehe Pfeil P^. Dabei weist der Verbindungshaken 18 im eingehängten Zustand nach oben, also bei Montage auf dem Dach in etwa himmelwärts. FIG. 1 now shows a first step for connecting the hook part 14 to the base part 12, in which the connection hook 18 is suspended in the base part 12 such that the connection hook 18 has a projection 32 on the base part 12, more precisely at a first end of the base part 12. engages behind (see arrow P ^. In this case, the connecting hooks 18 in the suspended state upwards, so when mounted on the roof in approximately skyward.
Nachdem der Verbindungshaken 18 am Basisteil 12 eingehängt wurde, wird das Hakenteil 14 durch eine Schwenkbewegung, angedeutet durch den Pfeil P2 in Figur 2, in das Basisteil 12 eingerastet, wobei ein am Hakenteil 14 angeformter Steg 34 mit einer an diesem endseitig angebrachten Rastnase 36 einen Vorsprung 38 am Basisteil 12 hintergreift. Der Vorsprung 38 ist an dem mit Bezug auf den Verbindungshaken 18 entgegengesetzten Ende des Basisteils 12 angeordnet. Der Steg 34 mit der Rastnase 36 bildet dabei den Rastverschluss 20, der in Kombination mit dem Vorsprung 38 das Hakenteil 14 am Basisteil 12 festlegt. After the connecting hook 18 has been hung on the base part 12, the hook part 14 is locked by a pivoting movement, indicated by the arrow P 2 in Figure 2, in the base part 12, wherein an integrally formed on the hook part 14 web 34 with an end attached thereto locking lug 36th a projection 38 on the base part 12 engages behind. The projection 38 is disposed on the opposite with respect to the connecting hook 18 end of the base part 12. The web 34 with the latching nose 36 forms the latching closure 20, which defines the hook part 14 on the base part 12 in combination with the projection 38.
Wie aus den Figuren ersichtlich, weist das Hakenteil 14 ferner einen Anschlagsteg 40 auf, der zwischen dem Verbindungshaken 18 und dem Rastverschluss 20 in unmittelbarer Nähe des Rastverschlusses 20 angeordnet ist. Der Anschlagsteg 40 ist am Hakenteil 14 angeformt und zeigt in den Figuren nach unten, nämlich zum Basisteil 12 hin. Im eingerasteten Zustand des Hakenteils 14 am Basisteil 12 (Figur 3) stützt sich das Hakenteil 14 über den Anschlagsteg 40 an einer Anschlagfläche 42 des Basisteils 12 ab. So wird unter Last, beispielsweise Schneelast, die auf das Hakenteil 14 wirkende Kraft in das Basisteil 12 eingeleitet, wodurch ein unerwünschtes Lösen der Rastverbindung weitgehend verhindert wird. Figur 4 zeigt das Befestigungselement 10 im montierten Zustand auf einem Schrägdach 44, das eine Neigung α zur Horizontalen aufweist. Das Basisteil 12 ist auf dem Dach 44 befestigt, insbesondere mit den Dachsparren verschraubt (nicht gezeigt), wobei die mehrteilige Ausführung des Befestigungselements 10 die Montage erleichtert. Im montierten Zustand befindet sich der Verbindungshaken 18 auf der höher liegenden Seite des Basisteils 12, in Figur 4 also rechts. So nimmt der Verbindungshaken 18 die dachabwärts gerichteten Kräfte auf, und der Rastverschluss 20 verhindert ein Abheben, beispielsweise aufgrund von Windsog. Durch die spezielle Ausgestaltung des Befestigungselements 10, insbesondere des Hakenteils 14, ist zudem dafür gesorgt, dass eine auf das Hakenteil 14 wirkende Last, insbesondere eine in Richtung des Pfeils S wirkende Schneelast, das Hakenteil 14 um den Verbindungshaken 18 als Drehachse im Sinne des Einrastens des Rastverschlusses 20 beaufschlagt. As can be seen from the figures, the hook part 14 also has a stop web 40, which is arranged between the connecting hook 18 and the snap fastener 20 in the immediate vicinity of the snap fastener 20. The stop web 40 is integrally formed on the hook part 14 and points in the figures downwards, namely towards the base part 12. In the locked state of the hook part 14 on the base part 12 (FIG. 3), the hook part 14 is supported via the stop web 40 on a stop face 42 of the base part 12. Thus, under load, such as snow load, the force acting on the hook part 14 force is introduced into the base part 12, whereby an undesirable release of the locking connection is largely prevented. Figure 4 shows the fastener 10 in the mounted state on a pitched roof 44, which has an inclination α to the horizontal. The base member 12 is mounted on the roof 44, in particular bolted to the rafters (not shown), wherein the multi-part design of the fastener 10 facilitates assembly. In the assembled Condition is the connection hook 18 on the higher side of the base part 12, in Figure 4 so right. Thus, the connecting hook 18 receives the forces directed downwards, and the latching closure 20 prevents lifting, for example due to wind suction. Due to the special design of the fastening element 10, in particular of the hook part 14, it is additionally ensured that a load acting on the hook part 14, in particular a snow load acting in the direction of the arrow S, the hook part 14 around the connecting hook 18 as a rotation axis in the sense of latching the latching closure 20 acted upon.

Claims

PATENTANSPRUECHE cLAIMS
1. Befestigungselement zur Montage von Solarmodulen bzw. Solarkollektoren auf einem Dach, insbesondere Schrägdach (44), mit 1. fastening element for mounting solar modules or solar panels on a roof, in particular pitched roof (44), with
einem Basisteil (12), das auf dem Dach befestigt werden kann, und  a base part (12) which can be fixed on the roof, and
einem Hakenteil (14), das mittels eines Schwenk-Einrast-Mechanismus am Basisteil (12) befestigt werden kann,  a hook part (14) which can be fixed to the base part (12) by means of a pivoting-latching mechanism,
dadurch gekennzeichnet, dass der Schwenk-Einrast-Mechanismus einen am Basisteil (12) einhängbaren Verbindungshaken (18) sowie einen Rastverschluss (20) umfasst, die in Längsrichtung (L) des Hakenteils (14) voneinander beabstandet sind.  characterized in that the pivoting-latching mechanism comprises a connection hook (18) which can be suspended on the base part (12) and a latching closure (20) which is spaced apart in the longitudinal direction (L) of the hook part (14).
2. Befestigungselement nach Anspruch 1 , dadurch gekennzeichnet, dass der Rastverschluss (20) zwischen dem Verbindungshaken (18) und einem Mittelschenkel (22) des Hakenteils (14) angeordnet ist. 2. Fastening element according to claim 1, characterized in that the latching closure (20) between the connecting hook (18) and a center leg (22) of the hook part (14) is arranged.
3. Befestigungselement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Verbindungshaken (18) und der Rastverschluss (20) einen Abstand voneinander aufweisen, der im Wesentlichen einer Breite (B) des Basisteils (12) entspricht. 3. Fastening element according to one of the preceding claims, characterized in that the connecting hook (18) and the latching closure (20) have a distance from one another which corresponds substantially to a width (B) of the base part (12).
4. Befestigungselement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Hakenteil (14) im Wesentlichen U-förmig ausgebildet ist, wobei an einem ersten Schenkel (16) der Schwenk-Einrast-Mechanismus angeordnet ist und an einem zweiten Schenkel (24) das Solarmodul bzw. der Solarkollektor festgelegt werden kann. 4. Fastening element according to one of the preceding claims, characterized in that the hook part (14) is substantially U-shaped, wherein on a first leg (16) of the pivot-latching mechanism is arranged and on a second leg (24) the solar module or the solar collector can be specified.
5. Befestigungselement nach Anspruch 4, dadurch gekennzeichnet, dass der Verbindungshaken (18) am freien Ende des ersten Schenkels (16) des Hakenteils (14) angeordnet ist. 5. Fastening element according to claim 4, characterized in that the connecting hook (18) at the free end of the first leg (16) of the hook part (14) is arranged.
6. Befestigungselement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Verbindungshaken (18) im eingehängten Zustand einen Vorsprung (32) am Basisteil (12) hintergreift. 6. Fastening element according to one of the preceding claims, characterized in that the connecting hook (18) in the suspended state engages behind a projection (32) on the base part (12).
7. Befestigungselement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Rastversehl uss (20) einen am Hakenteil (14) angeformten Steg (34) mit einer Rastnase (36) umfasst, die im eingerasteten Zustand einen Vorsprung (38) am Basisteil (12) hintergreift. 7. Fastening element according to one of the preceding claims, characterized in that the Rastversehl uss (20) comprises a on the hook part (14) integrally formed web (34) with a latching nose (36) which in the locked state, a projection (38) on the base part ( 12) engages behind.
8. Befestigungselement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Hakenteil (14) einen Anschlagsteg (40) aufweist, der zwischen Verbindungshaken (18) und Rastverschluss (20) angeordnet ist. 8. Fastening element according to one of the preceding claims, characterized in that the hook part (14) has a stop web (40) which is arranged between the connecting hook (18) and latching closure (20).
9. Befestigungselement nach Anspruch 8, dadurch gekennzeichnet, dass der Anschlagsteg (40) in unmittelbarer Nähe des Rastverschlusses (20) angeordnet ist. 9. Fastening element according to claim 8, characterized in that the stop web (40) in the immediate vicinity of the latching closure (20) is arranged.
10. Befestigungselement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Basisteil (12) als Profilschiene ausgebildet ist. 10. Fastening element according to one of the preceding claims, characterized in that the base part (12) is designed as a profile rail.
1 1. Schrägdach mit einem Befestigungselement (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Verbindungshaken (18) im montierten Zustand auf dem Dach (44) sich auf der höher liegenden Seite des Basisteils (12) befindet. 1 1. sloping roof with a fastener (10) according to any one of the preceding claims, characterized in that the connecting hook (18) in the mounted state on the roof (44) is located on the higher side of the base part (12).
12. Schrägdach nach Anspruch 11 , dadurch gekennzeichnet, dass eine auf das Hakenteil (14) wirkende Last das Hakenteil (14) um den Verbindungshaken (18) im Sinne des Einrastens des Rastverschlusses (20) beaufschlagt. 12. pitched roof according to claim 11, characterized in that a on the hook part (14) acting load the hook part (14) to the connecting hook (18) in the sense of engagement of the latching closure (20) acted upon.
PCT/EP2013/065954 2012-08-02 2013-07-30 Fastening element for mounting solar modules or solar collectors on a roof, and pitched roof having a fastening element WO2014020006A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13742638.3A EP2880374A1 (en) 2012-08-02 2013-07-30 Fastening element for mounting solar modules or solar collectors on a roof, and pitched roof having a fastening element

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DE102012213734.3 2012-08-02
DE102012213734.3A DE102012213734A1 (en) 2012-08-02 2012-08-02 Fastening element for mounting solar modules or solar collectors on a roof and pitched roof with a fastening element

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EP3623721A1 (en) * 2018-09-11 2020-03-18 SL Rack GmbH Roof hook
WO2023057517A3 (en) * 2021-10-05 2023-07-13 Schletter International B.V. Support element for supporting a solar module

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