Patent ID: 7226272

Claim:
A hingeless rotor defining an axis of rotation, comprising a rotor mast; a torque-transmission element disposed rotationally fixed with respect to the rotor mast; and at least one plate-shaped rotor head element having a first group of arms and a second group of arms, the axis of rotation of the rotor passing through the at least one plate-shaped rotor head element, wherein the first group of arms includes a plurality of bending-flexible rotor blade-connection arms that dissipate centrifugal forces, each of which is connectable to a rotor blade, and wherein the second group of arms includes a plurality of bending-flexible rotor mast-connection arms that are free of centrifugal force and connecting the plate-shaped rotor head element to the torque-transmission element, wherein the plate-shaped rotor head element includes a central opening, and wherein at least a portion of the rotor mast extends through the central opening connection-free.