The turntable turnable about the table turning axis and the turning hooks mounted on the turntable turnably about the hook turning axes separated from the table turning axis are provided. By transmitting the turning of the turntable to the turning hooks, the pallet is conveyed by the engaging rollers provided on the turning hooks. Particularly, the turning hooks displace the engaging rollers in the pull-out direction by turning about the hook turning axes with respect to the turntable in the direction opposite to the turning direction of the turntable while turning about the table turning axis together with the turntable. Thus, the engaging rollers move along paths relatively close to straight lines. In this way, the pallet can be conveyed while the engaging rollers engaged with the pallet are moved along the paths close to the straight lines.