Patent ID: 8870531

Claim:
A turbine machine rotor having composite material blades, wherein the rotor comprises: an assembly disk; a plurality of composite material blades mounted on the assembly disk via their roots and each provided at its free end with a platform; a metal shroud positioned on the blade platforms concentrically around the assembly disk and including labyrinth teeth that project radially outwards in order to abrade an abradable material carried by a casing surrounding the rotor, the metal shroud being held stationary both axially and circumferentially relative to the blade platforms and being suitable for moving radially outwards in operation relative to the blade platforms; and at least one pin passing through a first orifice provided in the metal shroud and a second orifice provided in the platform of at least one blade in a direction that is substantially radial, the pin being fastened to the metal shroud and being suitable for moving radially relative to the blade platforms so as to prevent the metal shroud from moving axially and circumferentially relative to the blade platforms while allowing the metal shroud to move radially relative to the blade platforms, wherein the at least one pin is substantially L-shaped in radial section perpendicular to an axis of rotation of the disk.