method for controlling a molding phase of an annular fixation structure of a green tire, and equipment for molding and curing green tires

摘要

method for controlling a molding phase of an annular fixing structure of a green tire, tire, equipment for molding and curing green tires. the present invention relates to a method for controlling a molding phase of an annular fixing 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); delimit at least a portion of the annular fixation structure (51a; 51b) using a first and a second surface opposite to each other (33a, 33b; 31a, 31b); placing the first surface (33a; 33b) and the second surface (31a; 31b) so as to place a portion of the first surface and a portion of the second surface in contact with a corresponding portion of the corresponding radially internal and axially internal surface (8a; 8b ) and a portion of the corresponding radially internal and axially external surface (7a; 7b), respectively, said annular fixation structure (51a; 51b) generating a first compression pressure; inflate the inflatable bladder (30) of said healing mold in order to place the first and second surfaces (33a, 33b; 31a, 31b) closer to each other, thus generating a second compression pressure in such a way as to model the radially internal and axially internal surface portion (8a; 8b) and the radially internal and axially external surface portion (7a; 7b) of the annular fixation structure (51a; 51b). the invention also concerns tires and equipment for molding and curing green tires.