Abstract: A vibration damper includes four torsion spring elements and two lever elements. Each torsion spring element has an inner part, an outer part and at least one resilient element. The inner part is located in the outer part. The resilient element is located between the inner part and the outer part and supports the inner part relative to the outer part such that a restoring force is created between the inner part and the outer part in the event of a deflection caused by rotation of the inner part and the outer part relative to one another. The torsion spring elements are located one above the other with respect to a first direction. The lever elements interconnect the torsion spring elements in a crosswise manner.

Abstract: Torsion spring device includes an outer housing, an inner housing located in the outer housing, and an elastic element. The elastic element supports the inner housing relative to the outer housing such that a restoring force is built up between the outer housing and the inner housing as a result of a deflection caused when the outer housing and the inner housing are rotated relative to one another. The restoring force-deflection curve can be adjusted by a choice of shape and/or material of the outer housing, of the inner housing, and of the elastic element and/or wherein the hysteresis can be adjusted by a choice of shape and/or material of the outer housing, of the inner housing and of the elastic element.