achieved so that the coil spring 40 is radially tensioned consequently a rattling of the winding device 30 in particular at high speeds of up to 250 km h is prevented it is consequently practically impossible for disruptive noise to be produced as a result of the helical configuration of the rod element 52 the rod element 52 has a plurality of contact locations 60 with the coil spring 40 as shown with reference to fig2 and 6 in a non assembled state of the rod element 52 that is to say when the rod element 52 is not inserted or introduced into the hollow space 42 of the coil spring 40 the contact locations 60 have with respect to the longitudinal rod axis 58 a larger radial spacing than half a diameter or a radius of the hollow space 42 of the coil spring with respect to the longitudinal axis l of the winding element 32 the contact locations 60 consequently have a larger radial spacing with respect to the longitudinal axis l than half a diameter of the hollow space 42 of the coil spring 40 the contact locations 60 have with respect to the longitudinal rod axis 58 or the longitudinal axis l of the winding element.