Patent ID: 9296167
Filing Date: 2016-03-29
CPC Classification: B29C,B29D

Claim Text:
1. A process for manufacturing a tyre comprising the steps of: providing an elastomeric layer on an outer surface of a toroidal support, said surface having a shape substantially matching a shape of an inner surface of said tyre; manufacturing a green tyre by assembling the structural elements thereof on the toroidal support provided with the elastomeric layer; introducing the green tyre supported on the toroidal support into a moulding cavity whose inner walls have a shape substantially matching a shape of an outer surface of the tyre; at least partially precuring the elastomeric layer by heating the toroidal support; introducing a primary working fluid into at least one diffusion gap defined between the inner surface of the green tyre and the toroidal support in order to press the outer surface of the green tyre against the inner walls of the moulding cavity; and curing the green tyre, wherein at least a portion of the radially inner surface of the toroidal support is provided with a plurality of protruding elements, wherein said protruding elements are distributed on the radially inner surface of the toroidal support corresponding to the crown portion of the green tyre, and wherein each of said protruding elements lies in a plane and each plane is substantially perpendicular to the equatorial plane of the toroidal support.