| 摘要 |
A tire inner stitching mold (9) defined by an inner portion (18)(19) of the grab ring (16)(54) of an outer tread belt (3), and wherein the grab ring (16)(54) presents an inner annular body (18)(19) and two annular shoulders (51) located on opposite sides of the inner annular body (18)(19) so as to define, with the inner annular body (18)(19), a concave annular surface (9a) negatively matching the outer shoulder and tread surface (2a) of a smooth-tread tire (2); at least one of the two annular shoulders (51) being movable in relation to the inner annular body (18)(19). <IMAGE> |
