METHOD FOR PRODUCING A FLEXIBLE WALL IN A GROOVE OF A TREAD FOR A TIRE

摘要

Method of manufacturing a tread of a tire made of rubber compound, the said tread 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 said groove in such a way as to be able to flex as liquid flows, the said method including molding the tread with at least one groove and at least one connecting element of a thickness equal to that of the wall which element is arranged inside the groove transversely to the longitudinal axis thereof, so that, after vulcanizing, the connecting element connects the lateral walls to the bottom wall over a given depth from the latter cutting the said connecting element at its junction with each of the lateral walls of the groove so as to obtain the flexible wall.

主权项

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.