Windscreen wiper for motor vehicle has linear drive for blade via carriages carrying wiper arms for differential speed drive

摘要

The windscreen wiper for a motor vehicle has a linear drive for the blade via two carriages (2) carrying the two arms of the wiper (3) each mounted on a guide rail (5). The carriages have different drive speeds depending on the area of windscreen being swept, so that the cleaning speed is higher on the drives side of the screen.