Patent ID: 8220521

Claim:
A device for darkening a cabin window, comprising: a drive shaft for moving a first shading means, the first shading means being moveably guided by two guide rails, wherein the drive shaft and the two guide rails are combined in a common mounting unit; at least one first drive strap for driving the drive shaft and being fixedly connected to a first displacement bar, the ends of the first displacement bar being guided in the guide rails, an edge of the first shading means being attached to the ends; wherein the first drive strap is guided about a first strap pulley fixedly connected to the drive shaft and about a second strap pulley provided in the region of a first end of the guide rails and wherein the second strap pulley is selectively connectable to a first electric motor via a first coupling for driving the first drive strap; a pull-back device with a pretensionable spring for rolling up the first shading means; a towing slide provided in at least one of the guide rails between the first displacement bar and the first end of the guide rails, the towing slide being drawable back in the direction of a second end of the guide rails by the pull-back device; wherein the towing slide comprises a latching device for latching the towing slide in a latched position, the latching device being fixedly attached to a first motor slide on which the first electric motor is slidably held, the latching device being provided proximate the first end of the guide rails.