Patent ID: 8070452

Claim:
A rotorcraft blade ( 1 ) provided with a fastener insert ( 20 ) integrated in the blade root for fastening the blade to a rotor, the blade being provided with a distributed spar ( 10 ) on a leading edge ( 4 ), a suction side ( 2 ), and a pressure side ( 3 ) of the blade, said fastener insert ( 20 ) including a horizontal shaft ( 21 ) perpendicular to the span of the blade and to the axis of rotation of said rotor, with the distributed spar ( 10 ) of the blade being wound in part thereabout, said horizontal shaft ( 21 ) having at least one winding zone ( 30 , 31 , 32 ) around which the distributed spar ( 10 ) of the blade is wound, and at least one fastener zone ( 41 , 42 ) for fastening said fastener insert ( 20 ) to said rotor, and each fastener zone ( 41 , 42 ) is arranged between two winding zones ( 30 - 31 , 31 - 32 ).