APPARATUS FOR AUTOMATICALLY ADJUSTING SHAFT CENTER OF WINDOW LIFT MOTOR

摘要

PURPOSE: An apparatus is provided to automatically adjust a shaft center of a window lift motor by inserting a ball metal into an armature shaft and inserting a spring between a commutator and the ball metal. CONSTITUTION: An armature shaft is arranged in a longitudinal direction of a housing. An armature(4) is wound around a peripheral surface of the armature shaft. A magnet is attached to an inner periphery of the housing. A commutator is fixed to a peripheral surface of the armature shaft and transfers an electricity of a battery to a wire wound around the armature(4). A gear case is connected to the housing. A worm gear is formed at a peripheral surface of the armature shaft. A worm wheel transfers a rotatory force of the armature shaft from the worm gear to an output shaft(11). A ball metal is fixed away from the armature(4) by a predetermined distance. A spring(30) is inserted between a commutator and the ball metal on an armature shaft.