Patent ID: 6177742
Filing Date: 2001-01-23
Classification: B60S,F16C,F16H

Abstract:
An electric drive unit for windshield wipers of a motor vehicle, comprising a drive motor, having an armature accommodated in a substantially cup-shaped pole housing (10), and including a gearbox (20), secured by a face end to the pole housing (10) for receiving at least one worm wheel (32) supported on a power takeoff shaft (30), the worm wheel engages a worm (14) connected to an armature shaft (12) of the drive motor, the power takeoff shaft (30) is supported in an eccentric bush (40) which is rotatable to set an axial spacing (a) between the armature shaft (12) and the power takeoff shaft (30) and is mounted for rotation, in a manner fixed against relative rotation, in the gearbox (20), and the eccentric bush (40) having a flange (41) that protrudes from an outer cylindrical surface (48), the eccentric bush (40) is embodied in graduated fashion, such that the bush has a larger diameter on a side toward the flange (41) than on another side remote from the flange (41).