Back-geared motor wheel e.g. for vehicle window winder has pre-stressed elastically deformable collar to grip shaft

摘要

The wheel (10) has a passage (12) for a shaft and an elastically deformable collar (100) that is pre-stressed and projects into the passage to grip the shaft. The collar is surrounded by a groove (200) that allows for its flexure, and its free edge has a ridge. The body (11) of the wheel and the collar can be made from the same material or from different materials.