PROBLEM TO BE SOLVED: To provide a harvester of head-forming vegetables in which an edible portion and a multi-sheet for covering up a field are prevented from being cut, and thereby they can be cut precisely at one time in an optimal position when being shipped as products.SOLUTION: A harvester 1 of head-forming vegetables concerning the present invention includes: a vehicle body 4 capable of traveling with a power source 2； a sliding spatulas 31 having an opening 31a being opened in a V-shape in the tip and having a cutter blade 37 bridged in the opening 31a, and also having a plate shape and being brought into contact with the ground to be made to slide； a supporting unit 56 where the sliding spatulas 31 is attached through a support mechanism 32 so that the sliding spatulas 31 can be displaced according to a ground shape of the field being brought into contact therewith； a supporting unit movement mechanism 9 for fixing the supporting unit 56 to the vehicle body 4 in a vertically movable manner； a displacement sensor 48 for detecting a displacement amount of the sliding spatulas 31 to the supporting unit 56； and a control unit 3 for controlling the movement amount of the supporting unit 56 by the supporting unit movement mechanism 9 based on the displacement amount detected by the displacement sensor 48.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】食用部分や圃場を覆うマルチシートを切断してしまうことを防止して、商品として出荷する場合の最適な位置において一度で正確に切断することが可能な結球野菜の収穫機を提供する。【解決手段】本発明に係る結球野菜の収穫機１は、動力源２を備えて走行可能な車体４と、先端部にＶ字状に開口する開口部３１ａを有すると共に開口部３１ａ内に架け渡されたカッター刃３７を有する板状で、圃場に接地させて摺動させる摺動ヘラ３１と、接地させた圃場の地表形状に応じて摺動ヘラ３１が変位可能なように支持機構３２を介して摺動ヘラ３１が取り付けられる支持部５６と、支持部５６を上下方向に移動可能に車体４に固定する支持部移動機構９と、支持部５６に対する摺動ヘラ３１の変位量を検出する変位センサ４８と、変位センサ４８により検出された変位量に基づいて支持部移動機構９による支持部５６の移動量を制御する制御部３とを備える。【選択図】図１
