PROBLEM TO BE SOLVED: To take a picture of a carrot conveyed by a conveyance mechanism with a camera and accurately decide the quality of the carrot.SOLUTION: The crop harvester includes a separation unit for taking a picture of a carrot X conveyed in a state that the foliage portion W of the carrot is nipped with a conveyance mechanism Ca, with a camera 21 from a side position, deciding the grade of the carrot X on the basis of the taken result, and then cutting off the carrot X of a low grade from the foliage portion W with an unloading cutter 25. The separation unit is provided with a shading mechanism G having openable or closable shading plates 28 on the upstream and downstream sides of a direction for conveying the carrot X, and can take a picture of the carrot X with a camera 21 in a state of shading light from the outside to achieve the accurate decision.COPYRIGHT: (C)2013,JPO&INPIT【課題】搬送機構で搬送される人参をカメラで撮影して品質の判定を正確に行う。【解決手段】搬送機構Caで茎葉部Wが挟持される形態で搬送される人参Xを側方位置からカメラ21で撮影し、撮影結果に基づいて人参Xの等級を判定し、低い等級の人参Xを排出カッター25で茎葉部Wから切り離して排出する選別ユニットを備えた。この選別ユニットでは、人参Xの搬送方向の上流側と下流側とに開閉自在な遮光板28を有する遮光機構Gを備え、1つの人参Xを外部からの光線を遮断した状態でカメラ21で撮影して正確な判定を実現する。【選択図】図8
