Mold comprising a cavity for molding a closing-off device in a groove

摘要

A molding element for a mold for vulcanizing a tread of a tire, comprising a base able to mold part of the tread surface of the tread and a bar able to mold a groove in the tread, the bar comprising two longitudinal faces extending along its length and projecting from the base and an upper face connecting the longitudinal faces. The molding element comprises a contact edge formed by the base and the bar, intended to come into contact with another molding element to form all or part of the vulcanizing mold, and further comprising at least one recess in the bar, which opens onto the upper face and onto the contact edge, but does not open onto the longitudinal faces of the bar.

主权项

1. A molding element for a mold for vulcanizing a tread of a tire, comprising:
a base able to mold part of the tread surface of the tread, and a bar able to mold a groove in the tread, comprising two longitudinal faces extending along a length of the bar and projecting from the base and an upper face connecting the longitudinal faces, a contact edge formed by the base and the bar, being intended to come into contact with another molding element to form all or part of the vulcanizing mold, at least one recess in the bar, the recess opening onto the upper face of the bar and onto the contact edge of the molding element, but not opening onto the longitudinal faces of this bar.