Drive device for moving a cover member, the door assembly and method of assembling the drive device

The invention relates to a drive device for moving a cover member for covering an opening in a motor vehicle, in particular a roller blind, a trunk cover or a sliding roof cover, with a drive, a guide means and an output coupled to the drive thrust member which is guided in the guide means and for moving the the cover with the cover member is connectable. The invention is characterized in that the drive (33) for driving the thrust element (32) via a transmission means (38) to the thrust element (32) is coupled to said transmission means (38) extends at least in sections in the guide means (31). The invention also relates to a door assembly with a drive device and a method for mounting a drive device. The invention thus provides a drive device for moving a covering for covering an opening in a motor vehicle, in particular a roller blind, a trunk cover or a sliding roof cover, and a door assembly having a driving device and a method for mounting a drive apparatus, a compact construction of the drive device provide at the lowest possible impairment of the opening to be covered area and cost-effective manufacture and ensure safe and reliable operation of the drive device.