POSITION FIXING DEVICE FOR EXAMPLE FOR ADJUSTABLE STEERING MECHANISM OF MOTOR VEHICLES, AND STEERING MECHANISM UNIT WITH SUCH DEVICE

摘要

This device, including a support structure equipped with two flanges (41, 42) between which the column (43) is located, and means for locking the column by bringing the flanges together, comprising a tie rod (40) extending between the flanges, one end of which is associated with locking members comprising a member (44) for abutment of the tie rod, an intermediate bearing member (45) in contact with one flange and separation means (46) located between the two members, is characterised in that the separation means comprise at least one rolling member (48, 49) between facing surfaces of the members, and means (50) for displacement of this rolling member along a ramp (52) provided on the corresponding surface of the intermediate bearing member (45), and in that at least a part of the tie rod connected to the abutment member can be displaced in terms of rotation in order to follow the displacements of the rolling member.