Vehicle seat height adjustment mechanism has a manual lever which swings through an angular range in both directions with a coupling to the freewheel which is switched according to the lever movement direction

摘要

The mechanism (10) to adjust the height of a seat, and especially in a vehicle, has a lever (20) which is moved manually over an angular range between two end positions to shift the drive mechanism (10) in one direction matching the direction of the adjustment lever movement. The assembly has a freewheel (54), which can be switched (50) in both directions, independently of the adjustment drive mechanism (10). The freewheel switch (50) works with a sliding path (46) at the lever (20) and a control cam at the freewheel (54) against the direction of lever (20) movement.