Patent ID: 8256043

Claim:
Support element for a cushion cover to be supported above the support element for seating and lying areas, comprising a base plate that can be fixed to a base, at least one spring element formed by a plurality of spring arms and extending upward from the base plate in a direction of the cushion cover, wherein the spring arms each are provided with a respective substantially U-shaped corrugated spring element on upper ends thereof, the upper ends of the spring arms being remote from the base plate, the corrugated spring element comprising at least two spaced spring legs located on concentric inner and outer ring tracks and disposed about a central axis of the support element and at least one connecting bar joining the spring legs, one end of an inner spring leg of the at least two spring legs being located on the inner ring track and being connected to a respective spring arm, and one end of an outer spring leg of the at least two spring legs being located on the outer ring track and being connected to a support plate provided for supporting the cushion cover, and a support body rotatable about the central axis of the support element for changing a degree of hardness of the support plate, wherein the support plate comprises a ring-shaped frame part connecting upper ends of at least some of the spring legs of the corrugated spring elements and a support disc rotatable about the central axis of the support element in the frame part, wherein the support disc is provided in an outer edge region of the support disc with an adjusting device for limiting movement of the spring legs and of the corrugated spring elements, the adjusting device comprises a plurality of bars arranged at regular intervals on a ring track arranged about the central axis of the support element on a lower flat side of the support disc facing the base plate, the plurality of bars making contact with a plurality of the spring legs and limiting the movement of the spring legs and of the corrugated spring elements when weight is applied to the support element, and a plurality of the plurality of bars arranged side by side on the ring track each are associated with a spring leg of the at least two spring legs and wherein the plurality of the plurality of bars have different degrees of stiffness.