PROBLEM TO BE SOLVED: To undo leaves of a head-forming vegetable apart and remove the stem core thereof.SOLUTION: A cylindrical cutter (4) is pushed in from the periphery of the stem core (80) exposed at the bottom of the head-forming vegetable (8) toward the center of a head (81), and cutting is performed to make a round of the stem, thereby cutting the connection between the stem and the leaf. Further, the head-forming vegetable is rotated round the stem, whereby the connection between the stem side surface and the head and the twining of the leaves are separated by the centrifugal force.COPYRIGHT: (C)2013,JPO&INPIT【課題】結球野菜の葉をバラバラに解き、茎芯を除去する。【解決手段】結球野菜(8)の底部に露出する茎芯(80)周囲から葉球(81)中央に向けて円筒カッター(4)を挿し込み、茎を一周する切り込みを施して、茎と葉の繋がりを切断すると共に、結球野菜を茎を中心にして回転させ、茎側面と葉球との繋がり及び葉同士の絡みを遠心力によって分離する。【選択図】図1