Device for cleaning surface of e.g. building window, has electric drive to move wiper arm in translational motion or rotary motion over guide device

摘要

The device has a guide device (43) that is provided in a frame (20) of to-be-cleaned surface (10), and an electric drive (40) is fastened at the corner point of the frame. The ends of a telescopic wiper arm (30) are provided with the wiping portions. The wiper arm is moved in translational motion or rotary motion with respect to to-be-cleaned surface, over the guide device by electric drive.