radial aufweitbare reifenaufbautrommel and reifenaufbauverfahren

摘要

A method of building a tire carcass onto a toroidially expanded building drum core is disclosed which comprises the steps of applying the carcass components onto a cover of the toroidially expanded building drum core at a first diameter D₁ while rigidly supporting the sides of the cover with a pair of internal side support mechanisms to form a toroidially shaped uncured carcass. The method of building a tire carcass onto a toroidially expanded building drum core further may employ the steps of: expanding the cover radially by an amount less than 5% greater than the diameter D₁ and applying a belt reinforcing structure or a tread and belt reinforcing structure onto the expanded cover to form an uncured tire assembly and may further include the step of curing the uncured tire assembly in a tire curing mold and removing the cured tire assembly from the mold; collapsing the toroidially expanded building drum core; and removing the tire from the collapsed core.