PROBLEM TO BE SOLVED: To prevent defective unloading in an unloading operation by an unloading auger and to stably carry out an unloading operation, in a combine harvester that is equipped with a pair of right and left traveling part lifting and lowering apparatuses for independently lifting and lowering of right and left traveling apparatuses relatively to a traveling machine body and adjusts the inclination of the traveling machine body, in the right and left directions.SOLUTION: When it is decided that the unloading auger 7 is removed from a housing position, in an automatic control mode practice and based on a signal from an auger detecting sensor 492, a pair of right and left traveling part lifting and lowering apparatuses are operated, together in a direction of approach (vehicle height is dropped) until at least one of a pair of the right and left traveling apparatuses 10 is made to approach the traveling machine body 2 to the closest (becomes the lowest position) by a controller 400. The lower limit horizontal control for automatically controlling the traveling machine body 2 in the horizontal angle by the controller 400 is carried out, according to the inclination angle detected by an inclination detection sensor 450, in a state in which at least either of a pair of the right and left traveling apparatuses 10 is made to approach the traveling machine body 2 the closest.COPYRIGHT: (C)2009,JPO&INPIT【課題】走行機体に対して左右の走行装置をそれぞれ独立して昇降させる左右一対の走行部昇降装置を備え、前記走行機体の左右方向の傾斜調整を行い得るコンバインにおいて、排出オーガによる排出作業時に排出不良を防止し、安定した排出作業を行うことができるコンバインを提供する。【解決手段】自動制御モード実行時且つオーガ検出センサ492からの信号に基づき排出オーガ7が格納位置から外れたと判断された場合、制御装置400により、左右一対の走行装置10の少なくとも何れか一方が走行機体2に対して最接近する(最下限位置となる)まで左右一対の走行部昇降装置がともに近接方向に作動する(車高を下げる)。そして、左右一対の走行装置10の少なくとも何れか一方が走行機体2に対して最接近した状態で、傾斜検出センサ450により検出される傾斜角度に応じて、制御装置400が走行機体2を水平角に自動制御する下限水平制御が行われる。【選択図】図13
