Patent ID: 8662871

Claim:
A tire vulcanizing device comprising: an upper annular mold attaching member and a lower annular mold attaching member that respectively attach side portion forming molds for forming side portions of a tire; a plurality of segments that respectively attach a plurality of segmented tread molds for forming a tread portion of the tire; a plurality of cylinders for respectively moving the plurality of segments in radial directions to close the respective tread molds at an advanced end, each cylinder being connected to a cylinder support plate from which a prop protrudes to connect to a guide member that guides the respective segment; heat medium passages respectively independently provided in the respective segments for applying heat for vulcanization to the tread molds when supplied with a heat medium; and heat insulation members respectively interposed between the segments and the cylinders for preventing conduction of heat from the segments to the cylinders; wherein the heat medium passages are controllable in temperature on a segment-by-segment basis.