Patent ID: 9688039
Date: 2017-06-27
CPC Classifications: B29D

Claim:
1. A method of manufacturing a tread of a tire made of rubber compound, comprising a tread surface, at least one groove having a bottom wall and two lateral walls extending from the bottom wall towards the tread surface, and at least one flexible wall arranged in the groove in such a way as to be able to flex as liquid flows, the method comprising: molding the tread with the at least one groove and at least one connecting element of a thickness equal to that of the lateral wall, wherein the at least one connecting element is arranged inside the at least one groove transversely to a longitudinal axis thereof, so that, after vulcanizing, the at least one connecting element connects the lateral walls to the bottom wall over a given depth from the latter; and cutting the connecting element at a junction thereof with each of the lateral walls of the at least one groove so as to obtain the flexible wall.