Itt Automotive Electrical Systems, Inc.

Gm Global Technolgoy Operations, Inc.

Christopher H Jones

Frank R Lombardo

Lloyd L Kuck

Richard Louis Ponziani

Steven L Tracht

Peter J Danish

Eugene B Porter

A system and method for manufacturing and/or molding a plurality of parts, such as a sleeve bearing and a roller bearing, into a predetermined position in the housing wiper motor comprising a component such as a housing. The wiper motor comprises a motor housing, a plurality of bearings integrally insert molded into a predetermined position in the motor housing and a motor situated in the motor housing and having a plurality of shafts which are received in the plurality of bearings. The method for molding a motor housing for use in the vehicle comprises the steps of situating at least one part, such as the sleeve bearing, into a mold for molding the motor housing and then insert molding the housing such that the at least one part becomes integrally formed or molded into a predetermined position therein. In a preferred embodiment, the part is molded into the housing such that it is aligned within a tolerance range of about -0.05 mm to +30 0.05 mm. The housing is then assembled with a motor, and the assembled housing and motor may then be used in a vehicle.

Windshield wiper motor for use in a vehicle and method for manufacturing

A variable length crank arm in a windshield wiper system provides a depressed park position for an associated wiper blade when the direction of rotation of a drive motor is reversed. The crank arm relies on an eccentric driver to vary its length between a first length and a longer second length. When the eccentric driver is rotated in a first direction to wipe the windshield, a spring loaded pin keeps the eccentric driver rotatably fixed to an output arm with the crank arm consequently at the first length. The spring loaded pin also engages a cam slot in a cam plate, the cam plate rotating freely with the output arm and the eccentric driver in the first direction. To move the blade to the depressed park position, the direction of rotation of the drive motor is reversed. This causes the cam plate to become rotatably stopped, with the now stationary cam slot forcing the pin out of engagement with the output arm. Continued reverse motor rotation rotates the eccentric driver relative to the output arm increasing the length of the crank arm, moving the blade to the depressed park position.

Depressed park windshield wiper mechanism

A variable length crank arm in a windshield wiper system provides a depressed park position for an associated wiper blade when the direction of rotation of a drive motor is reversed. The crank arm relies on an eccentric driver to vary its length and between a first length a longer second length. When the eccentric driver is rotated in a first direction to wipe the windshield, a spring loaded pin keeps the eccentric driver rotatably fixed to an output arm with the crank arm consequently at the first length. The spring loaded pin also engages a cam slot in a cam plate, the cam plate rotating freely with the output arm and the eccentric driver in the first direction. To move the blade to the depressed park position, the direction of rotation of the drive motor is reversed. This causes the cam plate to become rotatably stopped, with the now stationary cam slot forcing the pin out of engagement with the output arm. Continued reverse motor rotation rotates the eccentric driver relative to the output arm increasing the length of the crank arm, moving the blade to the depressed park position.

In a vehicle window wiper system having an electric drive motor with high, low and common brushes, electric motor energizing apparatus and forward and reverse motor operation, an auto-resetting current limiting device provides non-sacrificial protection to motor windings and associated circuitry during the various modes of motor operation.

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Dayton, OH, United States of America

Christopher H Jones