US Patent 7361244 Method and drum for molding tire

There are provided a method and a drum for building a tire in which residual air can be effectively removed by enhancing a pressing force of a carcass band to a bead filler in the turning of the carcass band around a bead core, wherein a cylindrical green case is arranged on an outer peripheral side of a building drum, and a central portion of the green case is expansion-deformed in a radial direction while approaching both the bead cores to each other under a restraint of the bead core through the building drum, and the green case is pressed onto an inner peripheral face of a belt-tread band, and thereafter both the end portions of the carcass band are turned around the bead cores so that the carcass band is pushed onto rigid support members disposed at an inner peripheral side of the carcass band together with the bead cores and bead fillers.