| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire molding drum molding a green tire by expanding the diameter of a carcass member in a toroidal shape by an expansible and contractible carcass support and capable of continuously manufacturing tires having different bead core intervals or belt member widths and tires having different belt diameters without replacing the molding drum itself or the parts of the drum in compositely manufacturing tires having those sizes. SOLUTION: The carcass support is constituted of a pair of core bodies arranged on a main axis left and right, and sliders loaded with the core bodies and bead lock parts and separated and approaching mutually in an axis direction and a slider moving means for moving the sliders to a required position to stop them are provided, and left and right segment expanding and contracting means, which are constituted of a plurality of expansible and contractible segments for meshing the left and right core bodies in a state adjacent mutually in a peripheral direction and expand the segments to a required diameter to stop them, are provided.
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