Mounting device for mounting solar panels on a mounting rail

摘要

The device has a lower retaining unit, and a rear gripping part at an assembly rail (2). A fixing screw (14) is provided, and a helical spring (15) is retained at a bearing point at the retaining unit. The spring is retained at another bearing point at the gripping part. The spring comprises a winding that runs in a rotational direction of an outer thread (18) of the screw, where the spring is arranged play-free at a screw shaft (17).