Windshield wiper drive

Abstract

Abstract A ROTATABLE INNER SHAFT HAS OPPOSITE ENDS AND IS ECCENTRICALLY LOCATED FOR ROTATION IN A HOLLOW OUTER SHAFT WHICH IS ARRANGED IN AXIAL PARALLELISM. THE SHAFTS ARE ROTATABLE INDEPENDENTLY OF ONE ANOTHER. AN ACTUATING ARM IS RIGID WITH ONE END OF THE INNER SHAFT PROJECTING TRANSVERSELY THERETO FOR ROTATION IN A CIRCULAR ORBIT ABOUT A PREDETERMINED AXIS. A SHOULDER IS PROVIDED AT THE CIRCUMFERENCE OF THE OUTER SHAFT AND EXTENDS AT LEAST SUBSTANTIALLY RADIALLY OF THE AXIS. A COUPLING MEMBER IS MOUNTED AT THE UPPER END OF THE INNER SHAFT FOR PIVOTAL MOVEMENT BETWEEN TWO POSITIONS IN ONE OF WHICH IT ABUTS AGAINST THE CIRCUMFERENCE OF THE OUTER SHAFT AND ENGAGES THE SHOULDER TO COUPLE THE SHAFTS FOR JOING ROTATION AND ANOTHER POSITION IN WHICH IT IS OUT OF ABUTMENT WITH THE CIRCUMFERENCE AND THEREFORE OUT OF ABUTMENT WITH THE SHOULDER. BIASSING MEANS PERMANENTLY URGES THE COUPLING MEMBER TO ITS ONE POSITION AND INTO ABUTMENT WITH THE CIRCUMFERENCE OF THE OUTER SHAFT. DRIVE MEANS IS PROVIDED FOR ROTATING THE OUTER SHAFT AND ENERGIZING MEANS FOR ENERGIZING THE DE-ENERGIZING THE DRIVE MEANS. CONTROL MEANS IS OPERATIVE FOR MOVING THE COUPLING MEMBER TO ITS OTHER POSITION AND FOR THEREUPON EFFECTING RELATIVE MOVEMENT OF THE SHAFTS IN A SENSE CAUSING RADIAL DISPLACEMENT OF THE ACTUATING ARM WITH REFERENCE TO ITS CIRICULAR ORBITAL PATH.

Inventors

• 👤 Erich Kolb

Bibliographic Details