Process for manufacturing pneumatic tires having a toric profile at high transversal curvature

A process for manufacturing pneumatic tires having a toric profile of high transverse curvature, said tire having a carcass, a tread band around said carcass and a reinforcing annular structure interposed between said carcass and said tread band, said structure having radially superimposed layers of parallel rubberized cords inclined with respect to a mid-circumferential plane of said annular structure,

• said process comprising the steps of separately forming each of said carcass, said tread band and said reinforcing annular structure so that each is in annular form,
• said tread band and said annular reinforcing structure each being in cylindrical shape, with the cords of said annular structure lying at a first angle of inclination with respect to the mid-circumferential plane of said annular structure,
• assembling said tread band to said reinforcing annular structure so as to form an annular element in a cylindrical configuration,
• then shaping said annular element into its final toric configuration with a high transverse curvature so as to move said cords from said first angle of inclination to a second angle of inclination with respect to the mid-circumferential plane of the annular element, then assembling said carcass to said toric shaped annular element to form a complete green pneumatic tire, then vulcanizing said green pneumatic tire inside a mold.