PURPOSE: A vulcanizing apparatus for a vehicle tire is provided to ensure smooth movement of a sector mold device by employing a round bar type guide to reduce friction. CONSTITUTION: A vulcanizing apparatus for a vehicle tire comprises a base(1), a sector mold device(2) which is installed on the base, an upper device(3) which is installed on the sector mold device, and a round bar(5). The base comprises a lower side mold and a slide plate(13) which is installed on the perimeter of the lower side mold. The sector mold device comprises a sector mold(21) and a cylindrical guide hole(4) which is formed in parallel to the inclination of an outer angled surface(211) of the sector mold. The upper device comprises an upper plate(31) which ascends and descends, an upper side mold(32), and an outer ring. The round bar is installed in the outer ring, corresponding to the cylindrical guide hole.
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