Patent ID: 6564666
Filing Date: 2003-05-20
Classification: F16C,F16H,H02K,Y02E,Y10T

Abstract:
A geared motor unit, for driving vehicle equipment, comprising: a rotor equipped with a rotor shaft, a reduction gearbox which contains a gearwheel in mesh with a worm belonging to the shaft and capable of driving an output member, and a device for eliminating, under a given compressive axial preload, axial play between one end of the rotor shaft and a wall of the box, wherein the device includes a plug housed in an end of the box, and a piston inserted between the plug and the end of the shaft, the plug exerting the compressive axial preload on the piston and on the shaft, and an immobilization system for immobilizing the piston in the axial position that corresponds to the compressive preload.