Patent ID: 6622338
Filing Date: 2003-09-23
Classification: B60S

Abstract:
A windshield wiper apparatus for a motor vehicle comprising:a starting switch having a activated position and a deactivated position; a windshield wiper having an arm and a base and a support frame and a spring, said support frame being pivotally mounted at one end to said base, said arm being pivotally connected to said base, said spring resiliently mounted to said base and said arm such that said arm is angularly pivotable with respect to said support frame; a control mechanism cooperatively connected to said arm and retained by said support frame, said control mechanism comprising: a first power interruption switch; a second power interruption switch; a direct current motor electrically connected to said first power interuption switch and to said second power interruption switch; a gear set drivingly connected to said motor; a protruded rod drivingly connected to said gear set; and a push rod movable between a first position aligned with said support frame to a second position extending outwardly of said support frame so as to urge said arm and spring pivotally outwardly of said support frame; and a relay means electrically connected to said starting switch so as to be electrically disconnected when said starting switch is in said deactivated position, said relay means connected to said first power interruption switch for causing said first power interruption switch to be driven and for causing said direct current motor to turn counterclockwise so as to actuate said gear set for moving said push rod to said second position, said relay means being electrically connected to said starting switch when said starting switch is in said actuating position, said relay means connected to said second power interruption switch for causing said second power interruption switch to be driven and for causing said direct current motor to turn clockwise so as to actuate said gear set for moving said push rod to said first position such that said spring returns to a position against said support frame, said second power interruption switch being urged by said protruded rod so as to retain said arm against said support frame while said starting switch is in said actuated position.