Patent ID: 11866088
Assignee: ZF STEERING SYSTEMS POLAND SP. Z.O.O.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A steering column assembly comprising:
a housing having outer, intermediate, and inner elongate, telescopically mounted housing portions movable relative to one another along an adjustment axis;
a steering column rotatably mounted in the inner elongate housing portion and being configured at one end for attachment of a steering member;
a leadscrew rotatably mounted on the intermediate housing portion and having first and second threaded portions, the first threaded portion comprising threads of a first pitch and the second threaded portion having threads of a second pitch;
a motor for rotating the leadscrew;
a first displacement member screw-threadedly mounted to the first threaded portion of the leadscrew and connected to one of the outer and inner elongate housing portions; and
a second displacement member screw-threadedly mounted to the second threaded portion of the leadscrew and connected to the intermediate housing portion;
wherein rotation of the leadscrew causes displacement of the first and second displacement members along the adjustment axis,
wherein the first threaded portion of the leadscrew extends over a length of the leadscrew, wherein the second threaded portion of the leadscrew extends from one end of the leadscrew to a midpoint of the leadscrew.