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A connecting element for securing a rotor blade to the rotor hub of a helicopter rotor comprises at least two components arranged at an angle relative to each other. At least one component extends outside the boundary of the other component on both sides of the other component. Slots are arranged in

A connecting element for securing a rotor blade to the rotor hub of a helicopter rotor comprises at least two components arranged at an angle relative to each other. At least one component extends outside the boundary of the other component on both sides of the other component. Slots are arranged in at least one of the components and these slots extend substantially toward the shearing center or rather toward the central shearing axis. Additionally, each connecting element has a flattened zone adjacent to the rotor hub to function as a flapping hinge. The connecting element also functions as a lead-lag hinge and as a torsion hinge.

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A connecting element (4) for securing a rotor blade (2) to a rotor hub (3) without hinging means, especially for a helicopter, comprising a torsion hinge zone (7) including at least two components (10, 11, 12, 13) connected to each other so that the components include an angle and form a common shea

A connecting element (4) for securing a rotor blade (2) to a rotor hub (3) without hinging means, especially for a helicopter, comprising a torsion hinge zone (7) including at least two components (10, 11, 12, 13) connected to each other so that the components include an angle and form a common shearing axis (14), said components of said torsion hinge zone (7) being so dimensioned in their respective cross-section that at least one component extends with two sides outside of the other component whereby the other component is substantially enclosed and contacted by said one component, and slot means (15, 16) extending longitudinally through the connecting element at least in one of said two components, said slot means extending substantially radially toward said central shearing axis (14), whereby each connecting element functions as a flapping hinge (5), as a lead-lag hinge (6), and as a torsion hinge (7).