Drive mechanism for vehicle steering wheel adjustment - has nut threaded to shaft of one element and fixed to other element with pressure system providing keyed operation

摘要

The drive unit is designed to move a moving element relative to a stationary element, and has a threaded shaft (9), which rotates on the stationary or moving element and is connected to a drive mechanism. A nut (12) is threaded onto the shaft and also fixed to the other element. A pressure medium (32) ensures the connection between the nut and the shaft, having a sliding element (18) which moves along the length of the nut element in order to form a keyed connection. A pressure element (20) forces the sliding element (18) in the direction of the nut. USE/ADVANTAGE - For vehicle steering wheel adjustment, improved tensioned connection of nut to shaft.