Patent attributes
An apparatus for manufacturing a pneumatic tire including a rigid core for forming a green tire on an outer face and a vulcanizing mold which can transport the green tire together with the rigid core such that the vulcanizing mold is closed to form a vulcanization space for sealing and storing the green tire between the vulcanizing mold and the rigid core so that the green tire is vulcanized in the vulcanization space, an annular movable seal supported by either one of the vulcanizing mold or the rigid core, and an urging means for urging the movable seal from the one of the vulcanizing mold and the rigid core that supports the annular movable seal toward a surface of the other of the vulcanizing mold and the rigid core, the movable seal being urged by the urging means toward the surface of the other of the vulcanizing mold and the rigid core so as to prevent generation of a gap between the vulcanizing mold and the rigid core when the vulcanizing mold is closed, and to absorb a change in shape of the rigid core upon vulcanization of the green tire.
