Window lifter geared motor assembly

Abstract

A window lifter geared motor assembly includes a housing, an electric motor in the housing, a damper damping the movements of the electric motor in the housing, and a drive shaft driven in rotation about an axis by the electric motor. The electric motor and the drive shaft are able to move in the housing along the axis, and the damper damps the movements of the electric motor and the drive shaft along the axis. The assembly further includes a sensor, the state of which is dependent upon the movements of the electric motor and of the drive shaft along the axis. The driving of the drive shaft is preferably dependent upon the state of the sensor and the drive shaft is stopped when an obstacle impedes movement of the window. The damper occupies a position that is immobile with respect to the housing, allowing the damper not to experience movements likely to cause the characteristics of the damper to vary.

Dependencies are inferred from the claim text.