Windscreen wiper blade driving device for motor vehicle, has return spring provided between arm and frame for exerting return force on arm to return spring into initial position when thrust or tensile force of flexible cable is stopped

摘要

The device has a flexible cable (11) with a notched structure (15) in an external surface, where the structure is engaged with a toothed pinion (14) integrated to a pivot arm, (4) such that controlled movements of the cable drives the pinion and pivots the arm relative to a fixed support frame (16), due to cables's thrust or tensile force along a longitudinal direction. A spiral return spring is provided between the arm and frame for exerting a return force on the arm to return the spring into initial position when the thrust or tensile force to bring the arm into terminal position is stopped.