Patent ID: 8117931

Claim:
A drive for displacing and positioning at least two profile parts relative to each other, comprising: a rotatable drive wheel; a drive member coupled to a first profile part and to the drive wheel; a flexible material strip rigidly connected to a point of engagement on at least one side to a second profile part, wherein the flexible material strip engages the drive wheel; and a guide for the flexible material strip, wherein the guide is connected to the first profile part, wherein the distance between the guide and the drive wheel is greater than the distance between the point of engagement of the flexible material strip on the second profile and the drive wheel, and wherein the drive wheel is connected to a pulling element adapted to be wound around a reel part provided on the drive wheel such that, when the at least two profile parts are retracted by engaging the drive wheel on the flexible material strip, the pulling element winds onto the reel part.