method for controlling a molding phase of a green tire annular attachment structure, and green tire molding and curing equipment

摘要

A method for controlling a molding phase of a green tire annular fastening structure, and equipment for molding and curing green tires The present invention relates to a method for controlling a molding phase of a annular green structure (51a 51b) of a green tire (50), said method comprising the steps of: introducing the green tire into a curing mold (200) including an inflatable bladder (30); delimiting at least a portion of the annular attachment structure (51a; 51b) using first and second surfaces opposite each other (33a, 33b; 31a, 31b); placing the first surface (33a; 33b) and the second surface (31a; 31b) so as to bring a portion of the first surface and a portion of the second surface in contact with a corresponding radially inner and axially inner surface portion (8a; 8b). ) and a portion of the corresponding radially internal and axially external surface (7a; 7b), respectively, said annular clamping structure (51a; 51b) generating a first compression pressure; inflating the inflatable bladder (30) of said curing mold to bring the first and second surfaces (33a, 33b; 31a, 31b) closer together, thereby generating a second compression pressure in such a manner as to shape the radially inner and axially inner surface portion (8a; 8b) and the radially inner and axially outer surface portion (7a; 7b) of the annular attachment structure (51a; 51b). The invention also relates to tires and equipment for shaping and curing green tires.