PROBLEM TO BE SOLVED: To provide a combine harvester capable of raising a reaping part before the reaping part sticks in the ground even when the reaping part grounds.SOLUTION: The combine harvester is provided with a hydraulic cylinder 9 that moves the reaping part 4 up and down, a ground type reaping height sensor 90 that detects the grounding of the reaping part 4, and a controller 70 that controls the rising of the reaping part 4 by driving the hydraulic cylinder 9 based on the detection result of the ground type reaping height sensor 90. When a travel speed v when the reaping part 4 grounds is equal to or more than a second set speed V2, the controller 70 controls to increase the rising rate of the reaping part 4.COPYRIGHT: (C)2013,JPO&INPIT【課題】刈取部が接地した場合であっても刈取部が地中に突き刺さってしまう前に刈取部を上昇させることができるコンバインを提供する。【解決手段】コンバインは、刈取部4を昇降させる油圧シリンダ9と、刈取部4の接地を検出する接地式刈高さセンサ90と、接地式刈高さセンサ90の検出結果に基づいて、油圧シリンダ9を駆動させて刈取部4の上昇制御を行う制御装置70と、を備え、刈取部4が接地した際の走行速度vが第二設定速度V2以上の場合、制御装置70は、刈取部4の上昇速度を速くする制御を行う。【選択図】図5
