DE102021103621A1 - fastening device - Google Patents

Abstract

The invention relates to a fastening device for fastening a solar panel, a photovoltaic module, a lightning conductor and/or a support profile, having a clamping element for clamping the solar panel, the photovoltaic module, the lightning conductor and/or the support profile, and a screw head receptacle with an insertion section and a fastening section. wherein the insertion section has at least one retaining device which narrows an opening of the insertion section compared to an opening of the fastening section, wherein the retaining device can be adjusted between an insertion position and a retaining position such that the opening of the insertion section is larger in the insertion position than in the retaining position.

Description

The invention relates to a fastening device for fastening a solar panel, a photovoltaic module, a lightning conductor and/or a support profile, having a clamping element for clamping the solar panel, the photovoltaic module, the lightning conductor and/or the support profile, and a screw head receptacle.

Fastening devices of this type are known in principle and enable simple installation of solar panels, photovoltaic modules, lightning conductors and/or support profiles, for example on roofs.

Here, however, special screws are necessary, which is associated with relatively high manufacturing costs. Furthermore, the special screws can unintentionally loosen.

It is therefore an object of the invention to create a fastening device, a system and a method which enables a solar panel, a photovoltaic module, a lightning conductor and/or a support profile to be securely fastened in a cost-effective manner.

This problem is solved by the objects and methods of the independent claims.

According to the invention, the fastening device is designed or can be used for fastening a solar panel, a photovoltaic module, a lightning conductor and/or a support profile.

For example, at least one solar panel, a photovoltaic module and/or a lightning conductor can be attached to the support profile. Preferably, several solar panels, photovoltaic modules and/or lightning rods can also be attached to a support profile.

The fastening device has a clamping element for clamping the solar panel, the photovoltaic module, the lightning conductor and/or the support profile.

The clamping element can have a clamping lug, for example. For example, the clamping element can extend at least essentially at right angles to a screw accommodated in the fastening device. The screw can be connected to a claw, for example, which can be inserted into a support profile, for example.

Alternatively, the clamping element can also have an acute angle with the screw. For example, the clamping element can extend obliquely downwards, preferably in the shape of a trunk.

The clamping element can clamp the solar panel, the photovoltaic module and/or the lightning conductor, for example on the roof and/or a support profile.

Alternatively, the clamping element can, for example, clamp a support profile on the roof, on a support and/or on another support profile.

The fastening device has a screw head receptacle with an insertion section and a fastening section, the insertion section having at least one retaining device which narrows an opening of the insertion section compared to an opening of the fastening section.

Preferably, the cross-sectional area of the opening of the insertion section is smaller than the cross-sectional area of the opening of the fastening section. This creates an undercut, for example.

The insertion section and the fastening section are preferably arranged one above the other.

The opening of the insertion section can merge into the opening of the fastening section.

The fastening section has a passage for the screw shank and a stop for the screw head. Accordingly, the underside of the screw head rests on the stop, while the screw shank extends through the passage.

The restraint device can be adjusted between an insertion position and a restraint position in such a way that the opening of the insertion section is larger in the insertion position than in the restraint position.

Preferably, the opening of the insertion section in the retaining position is smaller than a cross-sectional area of a screw head. The screw is preferably accommodated irreversibly.

Accidental loosening is prevented according to the invention. The screw, the fastening device and components fastened to it do not loosen themselves due to the retaining device and do not fall to the ground in an uncontrolled manner, for example.

The fastening device can be used to fasten a wide variety of solar panels, photovoltaic modules, lightning conductors and/or support profiles, for example in the case of trapezoidal or sloping roofs.

For example, the fastening device can optionally have a lateral support, which preferably forms a lateral stop. For example, the support can be arranged on an opposite side with respect to the clamping element. The support can preferably ensure that the fastening device does not tilt sideways when jammed.

In this application, the clamping element can be kept at a distance from a claw, which is used to connect it to the support profile. The screw head can be pushed through the opening of the insertion section by means of strong pressure without the screw head pushing through the opening of the fastening section.

In addition, the distance between the clamping element and the claw can be selected in such a way that the solar panel, the photovoltaic module and/or the lightning conductor can be pushed under the clamping element without having to lift the fastening device.

The fastening device can also be used to fasten a cross connector.

Here, a support for a support profile can be provided. The support can be attached to the screw shank, for example. For example, the pad can be mounted between the screw head mount and the claw.

The support can preferably have a structure which can engage in the support profile. The clamping element can here, preferably in the shape of a trunk, extend obliquely downwards to the support profile and clamp the support profile on the support.

In the non-screwed state, the fastening device can preferably be positioned so high that a support profile can be inserted.

In addition, the fastening device can be used to fasten an external connector or a purlin.

The fastening device can preferably be spaced apart from a clamping clasp in such a way that the solar panel and/or photovoltaic module can be pushed under the clamping element.

Further developments of the invention can also be found in the dependent claims, the description and the accompanying drawings.

According to one embodiment, the restraining device is designed to be flexible and/or resilient.

For example, a screw head is inserted in the insertion position. This pushes the restraint device to the side.

The restraint device is adjusted between the insertion position and the restraint position by bending and/or springing of the restraint device. The restraining device is preferably bent only reversibly. For example, the restraining device automatically returns to the restraining position.

The opening of the insertion section is thus temporarily enlarged in the insertion position.

After the screw head has passed the retainer, the retainer returns to the restraining position.

The restraint position preferably corresponds to the normal state, that is, to a certain extent, to the pretensioned state. Thus, a force is required to momentarily deflect the retractor into the insertion position.

According to a further embodiment, the retaining device has a latching lug.

The detent forms a projection which secures an inserted screw head from above. The detent snaps in place above the screw head and secures it.

According to a further embodiment, two retaining devices are provided, which are preferably arranged on opposite sides of the insertion section.

For example, the latching lugs of the restraint devices can be directed toward one another.

The restraining devices can preferably be mirror-inverted, but are otherwise constructed in the same way.

For example, the restraint devices can be oriented parallel to one another.

The screw head is secured from two sides by the two retaining devices. This offers reliable protection against unintentional loosening.

According to a further embodiment, the screw head receptacle is elongate.

Due to the fact that the screw head receptacle is elongate, there is a certain amount of play, which makes assembly easier.

The clamping element and/or a lateral support can also be elongate.

The insertion section, the fastening section and/or the retaining device can also be embodied in an elongate manner.

The opening of the insertion section and/or the opening of the fastening section can form a groove of a link guide with the retaining device. An inserted screw head can form a sliding block accommodated in the groove.

According to a further embodiment, the clamping element and/or the screw head receptacle comprises or consists of a metal material, preferably an aluminum material.

For example, the retaining device is made of aluminum. The restraint device is already bendable due to the choice of material and can be adjusted between the insertion position and the restraint position.

Preferably, the entire fastening device is designed as an extruded profile made of aluminum.

According to a further embodiment, the clamping element and the screw head receptacle are designed in one piece.

The production turns out to be inexpensive in this way. In addition, the fastening device is extremely stable.

The invention also relates to a system with a fastening device according to the invention and a screw with a screw head.

The opening of the insertion section is preferably smaller than the screw head in the retention position, but can widen in the insertion position, so that the screw head can be pushed through the opening of the insertion section.

Optionally, the system can have a claw. The claw can, for example, be inserted into a support profile.

Furthermore, the system can optionally have a support for a support profile. The support can be attached to the screw shank, for example. For example, the pad can be mounted between the screw head mount and the claw.

Finally, the system can optionally include at least one support profile.

The invention also relates to a method for fastening a solar panel, a photovoltaic module, a lightning conductor and/or a support profile with a fastening device according to the invention and/or a system according to the invention.

In this case, a screw with a screw head is inserted into the insertion section of the screw head receptacle, with the retaining device being adjusted into the insertion position. The adjustment is preferably only temporary.

The retaining device adjusts, preferably by itself, back to the retaining position after the screw head has passed the insertion section.

The adjustment is therefore preferably carried out automatically by the movement of the screw head.

All of the embodiments and components of the devices described here are preferably designed to be attached using the method described here. Furthermore, all of the embodiments of the devices described here and all of the embodiments of the method described here can be combined with one another, preferably also detached from the specific configuration in the context of which they are mentioned.

• 1 eine Perspektivansicht einer Ausführungsform einer erfindungsgemäßen Befestigungsvorrichtung,
• 2 eine seitliche Schnittansicht der Befestigungsvorrichtung gemäß 1,
• 3 eine Seitenansicht einer weiteren Ausführungsform einer erfindungsgemäßen Befestigungsvorrichtung,
• 4 eine Draufsicht der Befestigungsvorrichtung gemäß 3,
• 5 eine Seitenansicht einer weiteren Ausführungsform einer erfindungsgemäßen Befestigungsvorrichtung in einer geöffneten Position,
• 6 eine Seitenansicht der Befestigungsvorrichtung in einer verklemmten Position,
• 7 eine Seitenansicht einer weiteren Ausführungsform einer erfindungsgemäßen Befestigungsvorrichtung,
• 8 eine Perspektivansicht der Befestigungsvorrichtung gemäß 7,
• 9 eine Seitenansicht einer weiteren Ausführungsform einer erfindungsgemäßen Befestigungsvorrichtung, und
• 10 eine Perspektivansicht der Befestigungsvorrichtung gemäß 9.

The invention is described below by way of example with reference to the drawings. Show it:

• 1 a perspective view of an embodiment of a fastening device according to the invention,
• 2 a side sectional view of the fastening device according to FIG 1 ,
• 3 a side view of a further embodiment of a fastening device according to the invention,
• 4 a top view of the fastening device according to FIG 3 ,
• 5 a side view of a further embodiment of a fastening device according to the invention in an open position,
• 6 a side view of the fastening device in a clamped position,
• 7 a side view of a further embodiment of a fastening device according to the invention,
• 8th a perspective view of the fastening device according to FIG 7 ,
• 9 a side view of a further embodiment of a fastening device according to the invention, and
• 10 a perspective view of the fastening device according to FIG 9 .

First, it should be noted that the illustrated embodiments are purely exemplary in nature. Individual features can be implemented not only in the combination shown, but also individually or in other technically sensible combinations. For example, the features of one embodiment can be arbitrarily combined with features of another embodiment.

If a figure contains a reference number that is not explained in the directly associated descriptive text, reference is made to the corresponding preceding or following statements in the description of the figures. The same reference numbers are used for the same or comparable components in the figures and these are not explained again.

1 shows a fastening device for fastening a solar panel 10 to a support profile 12.

The fastening device has an elongate, nose-shaped clamping element 14 for clamping the solar panel 10 on the supporting profile 12 .

The solar panel 10 is in this case clamped between the clamping element 14 and the support profile 12 .

A screw 16 is inserted into an elongate screw head receptacle 18 .

The screw 16 is in turn connected to a claw 19 which is inserted into the support profile 12 .

The screw head receptacle 18 has an insertion section 20 with two retaining devices 22 arranged on opposite sides of the insertion section 20 and directed toward one another. Furthermore, the screw head receptacle 18 has a fastening section 24 .

An opening of the insertion portion 20 is narrowed by the retainers 22 compared to an opening of the attachment portion 24 .

The restraints 22 may be temporarily deflected. Thus, they can be adjusted between an insertion position and a restraint position in such a way that the opening of the insertion section 20 is larger in the insertion position than in the restraint position.

A screw head of the screw 16 widens the opening of the insertion portion 20 during insertion by pushing the retainers 22 aside.

Finally, when the screw head of the screw 16 is in the opening of the fastening section 24, the retaining devices 22 snap back into the retaining position and thus secure the screw head of the screw 16 from above.

The screw 16 can now be tightened, the solar panel 10 being clamped between the clamping element 14 and the support profile 12 .

In order to avoid tilting, the fastening device can optionally have a lateral support 26 .

As in 2 As can be seen, the attachment portion 24 may include a stop 28 . While a screw shank of the screw 16 can be passed through a passage, the underside of the screw head of the screw 16 rests on the stop 28 . This prevents the screw head from passing through the bushing.

Optionally, a spring plate 30 can also be arranged below the screw head. This can push the screw 16 together with the claw 19 upwards against the retaining device 22 . Thus, e.g. by pulling on the claw 19 axially to the screw 16, the claw 19 can be rotated by 90° to the screw head receptacle 18. After releasing the claw 19, it can, for example, dip back into the screw head receptacle 18, e.g. by 1 mm.

In 3 and 4 two solar panels 10 are shown as an example, which are attached to a common support profile 12 .

A centrally arranged fastening device can differ from the two fastening devices on the edge. For example, the central fastening device can have a further clamping element 14 instead of a support 26 . Each clamping element 14 can clamp another solar panel 10 here.

5 and 6 show a fastening device for fastening a support profile 12 to a support 32. The support 32 is attached to the screw shank of the screw 16 and has a hook-shaped structure 34 which can engage in a link guide of the support profile 12.

The clamping element 14 extends in the form of a trunk obliquely downwards to the support profile 12.

in a 6 In the clamped position shown, the clamping element 14 clamps the support profile 12 on the support 32. The support profile 12 can therefore no longer detach from the hook-shaped structure 34.

7 and 8th show external connectors. The clamping element 14 extends obliquely downwards in the shape of a trunk to the support profile 12 and clamps it on the support 32.

In the 9 and 10 Lightning protection clamps are shown. A lightning conductor 36 can be accommodated in each of the clamping elements 14, for example. The lightning conductors 36 are clamped between the clamping elements 14 and the support profile 12.

Reference List

10

solar panel

12

support profile

14

clamping element

16

screw

18

screw head mount

19

claw

20

insertion section

22

restraint device

24

attachment section

26

support

28

attack

30

spring plate

32

edition

34

structure

36

lightning rod

Claims (9)

Fastening device for fastening a solar panel (10), a photovoltaic module, a lightning conductor (36) and/or a support profile (12). a clamping element (14) for clamping the solar panel (10), the photovoltaic module, the lightning conductor (36) and/or the support profile (12), and a screw head receptacle (18) with an insertion section (20) and a fastening section (24), wherein the insertion section (20) has at least one retaining device (22) which narrows an opening of the insertion section (20) compared to an opening of the fastening section (24), wherein the retaining device (22) can be adjusted between an insertion position and a retaining position in such a way that the opening of the insertion section (20) is larger in the insertion position than in the retaining position. fastening device claim 1 , characterized in that the retaining device (22) is designed to be flexible and/or resilient. fastening device claim 1 or 2 , characterized in that the retaining device (22) has a locking lug. Fastening device according to one of the preceding claims, characterized in that two retaining devices (22) are provided, which are preferably arranged on opposite sides of the insertion section (20). Fastening device according to one of the preceding claims, characterized in that the screw head receptacle (18) is elongate. Fastening device according to one of the preceding claims, characterized in that the clamping element (14) and/or the screw head receptacle (18) comprises or consists of a metal material, preferably an aluminum material. Fastening device according to one of the preceding claims, characterized in that the clamping element (14) and the screw head receptacle (18) are constructed in one piece. System with a fastening device according to one of the preceding claims and a screw (16) with a screw head. Method for fastening a solar panel (10), a photovoltaic module, a lightning conductor (36) and/or a support profile (12) with a fastening device according to one of Claims 1 until 7 and/or a system claim 8 , in which a screw (16) with a screw head is inserted into the insertion section (20) of the screw head receptacle (18), the retaining device (22) being displaced into the insertion position and the retaining device (22) being displaced back into the retaining position, after the screw head has passed the insertion section (20).

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