| 摘要 |
The invention relates to a device for fastening a mounting rail (40) on a roof hook (60), comprising a roof hook (60) that can be attached to a roof substructure, in particular a rafter, and has a coupling section (70), a mounting rail (40) that is suitable for receiving loads, for example a photovoltaic module, and has at least one counterpart coupling section (50), and a retaining arrangement (90) that is suitable for connecting the mounting rail (40) to the roof hook (60) and has at least one tightening device (80, 82) and at least one elastic spring element (24), wherein the at least one counterpart coupling section (50) can be brought into coupling engagement with the coupling section (70) by tightening the at least one tightening device (80, 82) whilst simultaneously applying a tensioning force to the at least one spring element (24), wherein the retaining arrangement (90) and the mounting rail (40) are or can be connected to one another in such a way that, before the tightening of the tightening device, the coupling section (70) and the at least one counterpart coupling section (50) are retained by the spring element (24) at a spacing that prevents the coupling engagement. |
