PROBLEM TO BE SOLVED: To change a tread width of a vegetable harvester safely in simple constitution.SOLUTION: In a vegetable harvester, a pull-up mechanism 100 and a pull-out conveyance device 200 are arranged in main frames 9L, 9R including right/left travel wheels 3L, 3R, a foliage cut device 400 is arranged in the pull-out conveyance device 200, and a foliage discharge member 290 discharging a foliage portion cut by the foliage cut device 400 to a side of a machine body is arranged. A tread width of left and right travel wheels 3L, 3R can be changed by expanding/contracting an output shaft 6a to the travel wheel 3L on an opposite side to the foliage portion discharge direction of the foliage discharge member 290. A temporary support member 15 supporting the travel wheel 3L moving laterally in a floating state is arranged. The temporary support member 15 is brought into a storage state by lifting a ground contact part 15a with respect to an output shaft 6a of the right/left travel wheels 3L, 3R.SELECTED DRAWING: Figure 9COPYRIGHT: (C)2018,JPO&INPIT【課題】 野菜収穫機のトレッド幅変更を簡単な構成で安全に行えるようにする。【解決手段】 左右の走行輪3L,3Rを備えるメインフレーム9L,9Rに引起こし機構100と引抜搬送装置200を設け、引抜搬送装置200に茎葉部切断装置400を設け、茎葉部切断装置400で切断した茎葉部を機体の側方に排出する茎葉排出部材290を設けた野菜収穫機において、茎葉排出部材290の茎葉部排出方向と逆側の走行輪3Lへの出力軸6aを伸縮して左右の走行輪3L,3Rのトレッド幅を変更可能にすると共に、横移動する走行輪3Lを浮上させた状態に支持する仮支持部材15を設け、仮支持部材15は接地部15aを左右の走行輪3L,3Rの出力軸6aより上昇させて収納状態とすることを特徴とする野菜収穫機とする。【選択図】図9
