Patent ID: 11878744
Assignee: ZF FRIEDRICHSHAFEN AG
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. A steer-by-wire steering device for a rear axle steering system of a motor vehicle, the steering system comprising a steering gear system comprising:
a housing,
a spindle,
a rotatable axially fixed spindle nut being located inside the housing,
a spindle drive for axially displacing the spindle relative to the spindle nut,
the spindle nut being supported, at least indirectly relative to the housing, by at least an energy store in a rotational direction about a longitudinal axis of the spindle nut such that the spindle nut is at least one of:
maintainable in a zero position or within a range around the zero position, and
rotatable back to the zero position.