Patent ID: 11904929
Assignee: NIDEC MOTORS &ACTUATORS (GERMANY) GMBH
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B

Claim 0:
1. A height adjustment device of a steering column of a motor vehicle, the height adjustment device comprising:
an electric motor; and
a reduction gear; wherein
the electric motor drives a threaded spindle to raise and lower a steering assembly connected to the steering column;
the threaded spindle is engaged with a spindle nut;
a rotational movement of the threaded spindle is converted into a translational movement of the spindle nut in a direction of a longitudinal axis of the threaded spindle;
the threaded spindle is surrounded on a circumferential side by at least one spring that is capable of exerting a spring force on the spindle nut to counteract a weight force acting in the direction of the longitudinal axis of the threaded spindle; and
the at least one spring including a compression spring which is between the reduction gear and the spindle nut and is tensioned when the steering assembly is lowered.