Patent ID: 8801384

Claim:
An attachment for an airfoil comprising: a flat support that is perpendicular to a direction of the airfoil; and two opposite flanks that rise up on the support delimiting a broach compartment in which a root of the airfoil is retained, the flanks being inclined towards each other from the support such that the compartment communicates to an exterior through a clamped opening and the flanks presenting overhanging regions which bear against the root of the airfoil when centrifugal force is applied on the airfoil, wherein each of the flanks is divided into portions in a longitudinal direction of the compartment by at least one transverse notch from a free upper edge of the flank at a distance from the support, leading to a region adjacent to the support, the transverse notch extending through the free upper edge and the overhanging regions of both flanks and into a bottom of the compartment.