PROBLEM TO BE SOLVED: To provide a crop harvester which can perform interval adjustment between left and right travel devices so as not to break, and can prevent the accumulation of foliage parts separated from crops on a machine body.SOLUTION: A crop harvester is provided with: a pulling out and conveying device 19 for clamping a foliage part and pulling out a crop from a farm field left and right travel devices 84L, 84R for traveling the farm field an interval adjustment mechanism 95 for adjusting a lateral interval of the left and right travel devices an adjustment actuator 89 for actuating the interval adjustment mechanism 95, which is provided in an expandable and contractable way and a restraining mechanism 92r for forcibly stopping the expansion and contraction of the adjustment actuator 89. A transmission member 78R for transmitting a drive force to the left and right travel devices 84L, 84R and a travel support member 90 for supporting the left and right travel devices 84L, 84R expand and contract while interlocking with each other.COPYRIGHT: (C)2015,JPO&INPIT【課題】左右の走行装置の間隔調節を容易且つ破損しないように行うことができると共に、作物から分離された茎葉部が機体上に留まらない農作物収穫機を提供する。【解決手段】茎葉部を挟持して圃場から作物を引き抜く引抜搬送装置19を設け、圃場を走行するための左右の走行装置84L,84Rを設け、左右の走行装置84L,84Rの左右間隔を調節する間隔調節機構95を設けた農作物収穫機において、間隔調節機構95を作動させる調節アクチュエータ89を伸縮自在に設け、調節アクチュエータ89の伸縮を強制的に停止させる牽制機構92rを設け、調節アクチュエータ89を伸縮させると、左右の走行装置84L,84Rに駆動力を伝動する伝動部材78Rと、左右の走行装置84L,84Rを支持する走行支持部材90が連動して伸縮する構成とする。【選択図】図2
