ROLLER BAND HAVING ZIGZAG AND BLADE INCISIONS FOR MOLDING SUCH INCISIONS

摘要

Tread for a tire comprising a tread comprising a plurality of raised elements (1) in the form of blocks and / or ribs delimited by grooves, a plurality of these relief elements being provided with at least one incision oriented in an average orientation defined as being the angle between a straight line passing through the ends of the incision on the running surface and the transverse direction of the tread, each incision being delimited by rubber mixing walls and comprising at least two portions whose average orientations, measured with respect to the transverse direction, are different from the average orientation of the incision, this band being characterized in that on at least some of said portions having a different orientation from the average orientation of the incision, at least one of the walls delimiting the incision is formed with at least one protrusion (10) reducing locally the width of the incision by at least 50% of its greatest width (E).