Patent ID: 7722319

Claim:
A locking and fixing device for a heat shield element which can be connected to a rotor unit of an axial-flow turbomachine and which can be arranged along a heat shield row axially directly next to at least one blade provided in a blade row, the locking and fixing device comprising: at least two rib-like projections for axially facing the blade which are spaced apart in a circular circumferential direction, the rib-like projections being raised above a side wall section facing the blade to define an intermediate space which extends in the circular circumferential direction and into which a locking lug provided on the blade can be fitted; and an extension on at least one of the two rib-like projections, on a side facing away from the intermediate space, in the circular circumferential direction, the extension being connected to the at least one rib-like projection and the side wall section to rise above the side wall section at most up to a rib height of the at least one rib-like projection.