PROBLEM TO BE SOLVED: To provide a combine harvester which can make the smooth grounding slide of a grounding portion, even for the surface of a field is hard or weak, and can easily avoid the increase in the movement resistance by a grounding portion and the riding of soil on the grounding portion in a weak field.SOLUTION: This combine harvester whose reaping portion 10 is liftably supported on a travel machine frame so as to follow the ground is characterized by supporting a grounding portion 18 for grounding and supporting the reaping portion 10 on the grass-dividing rod 13 of the reaping portion 10 through a posture-changing means 40 for upward or downward swinging the grounding portion 18 for grounding and supporting the reaping portion 10 on a supporting point P placed on the rear end side of the grounding portion 18.COPYRIGHT: (C)2009,JPO&INPIT【課題】 圃場面が硬い場合も軟弱な場合も、接地部のスムーズな接地摺動を現出させることができるとともにとともに軟弱圃場での接地部による移動抵抗の増大や接地部への土の乗り上がりの発生を回避しやすいコンバインを提供する。【解決手段】 刈取り部10を接地追従するよう走行機体に昇降自在に支持させてある。刈取り部10を接地支持する接地部18を、接地部18の前端側に位置した支点Pまわりに上下揺動する姿勢変化をさせる姿勢変更手段40を介して刈取り部10の分草杆13に支持させてある。【選択図】 図10
