| 摘要 |
A molding element) of a mold for molding and vulcanizing a tire treadcontaining a molding surface intended to mold part of the tread surface of the tire and a complex blade of projecting from the molding surface, containing a body oriented mainly in a circumferential direction X and at least one U-shaped secondary branch facing towards this body, the secondary branch being oriented mainly in an oblique direction J, J making a non-zero angle ψ with a transverse direction Y perpendicular to the circumferential direction X, the secondary branch in contact with the main body at two contact zones to delimit a cavity of length L, wherein the molding element has a main cutting means projecting from the molding surface, extending between two of its ends and running parallel to J, the length being less than the length L, and wherein the molding element has at least two secondary cutting means of height Hs extending from one of the ends of the main cutting means as far as one of the contact zones facing this end, and forming an angle &thetas; with this body. |
