Patent ID: 9126377
Filing Date: 2015-09-08
Classification: B29D

Abstract:
1. A molding element of a mold for molding and vulcanizing a tire tread, the tread comprising a tread surface adapted to come into contact with the ground when the said tire is running, the molding element comprising: a molding surface adapted to mold part of the tire tread surface, and a blade of length L and of height Hc adapted to mold a sipe or a groove in the tread, comprising a rounded end extending along the length of the blade in a direction of extension X, two cutting means positioned on either side of the blade at a certain distance from the blade, wherein each cutting means comprises a cutting edge extending in the direction of extension, this cutting edge making an acute angle α in a cutting plane perpendicular to the direction of extension X, wherein the height Hlc of the cutting edge is greater than or equal to the height of the blade Hc.