An unloading device for transporting a vulcanized tire vulcanized by a tire vulcanizer from the tire vulcanizer to a cooling PCI device, and for transporting the vulcanized tire cooled by the PCI device, comprising: a pair of support bodies which is formed to extend in a horizontal direction and is configured to support side surfaces of the vulcanized tire; and a movement portion which is configured to move the support bodies, wherein the movement portion includes: a horizontal movement mechanism which is configured to move the support bodies in the horizontal direction from a tire extraction position, at which the vulcanized tire supported by a bead ring of the tire vulcanizer can be extracted, to a PCI tire holding position, at which the vulcanized tire can be held by a tire holding portion of the PCI device; and a transport mechanism which is configured to transport the vulcanized tire, which is cooled by the PCI device and is received by the pair of support bodies at the PCI tire holding position, to a carrying-out destination, characterized in that the pair of support bodies is configured to support side surfaces of the vulcanized tire from the lower portion in a vertical direction, the support body includes a plurality of rollers, the transport mechanism includes a rotation mechanism which is configured to rotate the pair of support bodies so that the side of the transport mechanism opposite to the carrying-out destination is directed upward, the rotation mechanism includes a base portion which includes an inclined surface and a contacted body which is configured to come into contact with the inclined surface such that, when the contacted body comes into contact with and is pressed by the inclined surface, the pair of support bodies is rotated, and the unloading device comprises a plane position adjusting portion which is configured to position a plane position of the vulcanized tire on the pair of the support bodies at the PCI tire holding position. a pair of support bodies which is formed to extend in a horizontal direction and is configured to support side surfaces of the vulcanized tire; and a movement portion which is configured to move the support bodies, wherein the movement portion includes: a horizontal movement mechanism which is configured to move the support bodies in the horizontal direction from a tire extraction position, at which the vulcanized tire supported by a bead ring of the tire vulcanizer can be extracted, to a PCI tire holding position, at which the vulcanized tire can be held by a tire holding portion of the PCI device; and a transport mechanism which is configured to transport the vulcanized tire, which is cooled by the PCI device and is received by the pair of support bodies at the PCI tire holding position, to a carrying-out destination, characterized in that the pair of support bodies is configured to support side surfaces of the vulcanized tire from the lower portion in a vertical direction, the support body includes a plurality of rollers, the transport mechanism includes a rotation mechanism which is configured to rotate the pair of support bodies so that the side of the transport mechanism opposite to the carrying-out destination is directed upward, the rotation mechanism includes a base portion which includes an inclined surface and a contacted body which is configured to come into contact with the inclined surface such that, when the contacted body comes into contact with and is pressed by the inclined surface, the pair of support bodies is rotated, and the unloading device comprises a plane position adjusting portion which is configured to position a plane position of the vulcanized tire on the pair of the support bodies at the PCI tire holding position. a horizontal movement mechanism which is configured to move the support bodies in the horizontal direction from a tire extraction position, at which the vulcanized tire supported by a bead ring of the tire vulcanizer can be extracted, to a PCI tire holding position, at which the vulcanized tire can be held by a tire holding portion of the PCI device; and a transport mechanism which is configured to transport the vulcanized tire, which is cooled by the PCI device and is received by the pair of support bodies at the PCI tire holding position, to a carrying-out destination, characterized in that the pair of support bodies is configured to support side surfaces of the vulcanized tire from the lower portion in a vertical direction, the support body includes a plurality of rollers, the transport mechanism includes a rotation mechanism which is configured to rotate the pair of support bodies so that the side of the transport mechanism opposite to the carrying-out destination is directed upward, the rotation mechanism includes a base portion which includes an inclined surface and a contacted body which is configured to come into contact with the inclined surface such that, when the contacted body comes into contact with and is pressed by the inclined surface, the pair of support bodies is rotated, and the unloading device comprises a plane position adjusting portion which is configured to position a plane position of the vulcanized tire on the pair of the support bodies at the PCI tire holding position.