To efficiently produce a tire having a curved band excellent in lifting preventing effect and uniformity with high accuracy while simplifying an apparatus structure and suppressing apparatus cost low.

A diameter expansible belt molding drum 10 formed from a plurality of segments 12 is provided. Each of the segments 12 is equipped with a mold surface part 12S including a center mold surface part 13S formed by the outer surface of a segment main body 13 and shoulder mold surface parts 14S each formed by the outer surface of an elastic plate body 14 elastically deformable inwardly in a radius direction.