Patent ID: 7530802

Claim:
A molding element intended to be fitted on a mould for molding a cutout in a tire tread, this molding element comprising a first region intended for anchoring the molding element in a tire mould and a second region intended to protrude from the molding surface of the mould for molding a cutout in a rubber tread, the second region being formed of a plurality of thin parts of average thickness less than 2 mm and of a plurality of thick parts of average thickness greater than or equal to 2 mm, the thin parts and the thick parts being arranged in at least two interconnected parallel side-by-side series of alternating thin and thick parts, wherein the thin and thick parts of each series are staggered with respect to the thin and thick parts of an adjacent series, such that at least three thin parts are extended in two distinct directions by a thick part, each thin part having undulations in two directions oriented transversely to one another to produce meshing of opposing walls of a molded cutout.