METHOD AND PLANT FOR BUILDING TYRES

摘要

A carcass sleeve (12) is situated in radially external position with respect to a toroidal forming drum (23) arranged in a first radially contracted operative condition. The carcass sleeve (12) is shaped according to a toroidal configuration while the forming drum (23) is positioned inside the carcass sleeve (12). During shaping of the carcass sleeve, the forming drum (23) is radially expanded up to a second radially expanded operative condition. Upon completed shaping, the carcass sleeve (12) is coupled to the forming drum (23) in the second operative condition. The forming drum (23), coupled to said shaped carcass sleeve (12), is arranged in proximity to at least one device (41) for building at least one belt layer (7a) at a radially external position relative to said shaped carcass sleeve (12).