Vehicle windshield wiper assembly incorporating cable and pulley drive system and remote positioned electric motor

摘要

A windshield wiper assembly for use in a motor vehicle. An electric motor is operatively connected to and powered by an on-board electrical supply provided by the vehicle. The motor forms a part of a housing mounted within an engine compartment of the vehicle at a location remote from the vehicles windshield. A driving wheel and linkage member convert a rotary output of the motor into a translating and reciprocating driving force. A drive mechanism is mounted proximate a lower edge of the windshield, beneath a cowl portion, and with a first wiper arm pivotally securing to the drive mechanism at a first location and a second wiper arm likewise pivotally securing to the drive mechanism at a second location. An elongated and internally hollowed sleeve extends between the housing and the drive mechanism. The sleeve encloses a flexible and incompressible cable securing to the motor and drive housing at a first end and to the drive mechanism at a second end. The cable is acted upon by the driving wheel and linkage of the housing and imparts the reciprocating and translating driving force to the gear and belt arrangement of the drive mechanism. The drive mechanism further includes high strength and resilient reciprocating structure to operate the wiper arms and blades without fear of material wearing or fatigue and so as to permit mounting of the motor and housing within the engine compartment at a location remote from the firewall separating the occupant compartment.