Roller blind arrangement having driving means for laterally guiding a roller blind web

A roller blind arrangement for an automobile for shading a transparent vehicle section, comprising

• a roller blind web capable of being wound up to form a roller blind reel and guided in a guide rail at each of its lateral edges on either side of a longitudinal center plane of the roller blind, and
• two driving devices, each of which is guided in a guide track of a respective one of the guide rails,
• wherein each driving device is formed by a toothed belt which has a substantially rectangular cross-section and a respective toothing having teeth on at least one side,
• wherein the teeth run at least approximately parallel to a plane of the unwound roller blind web in a transverse direction of the respective guide rail, the roller blind web being pressed between each toothed belt under-side having the respective toothing and a bottom of each respective guide track and being deflected in each respective guide track by the toothed belt at least approximately in a U-shape when viewed in the transverse direction of the guide rail, or the roller blind web being pressed between each toothed belt upper side having the respective toothing and a roof of each respective guide track and being deflected in the guide track by the toothed belt at least approximately in an inverted U-shape when viewed in the transverse direction of the guide rail.