PROBLEM TO BE SOLVED: To appropriately adjust lifting and lowering timing, and driving stop and re-driving timing of a harvesting and transporting part and a threshing part during harvesting operation of the harvesting and transporting part, and to allow smooth harvesting operation in a combine harvester in which the harvesting and transporting part for carrying out harvesting and transportation of grain culms is installed to be freely liftable and lowerable.SOLUTION: In the combine harvester performing automatic stop control for automatically stopping the driving of the harvesting and transporting part (7) and the threshing part (6) when the harvesting and transporting part (7) is lifted to a prescribed height or above during the harvesting operation, is provided with a controller (21) disengaging a harvesting clutch and a threshing clutch, and adjusting the number of revolutions of an engine to a low-speed revolution lower than an operational revolution when an automatic stop control ON/OFF switch (SW1) for harvesting and threshing is in an ON state, the harvesting clutch and threshing clutch are in an ON state, a car speed sensor (SE6) detects traveling at a prescribed speed or above, and a harvesting height sensor (SE5) detects lifting of the harvesting and transporting part (7) to a prescribed height or above.COPYRIGHT: (C)2013,JPO&INPIT【課題】穀稈の刈り取りと搬送をする刈取搬送部を昇降自在に架設したコンバインにおいて、刈取搬送部の刈取作業中における昇降タイミング、並びに、刈取搬送部及び脱穀部の駆動停止及び再駆動タイミングの適正化を図り、刈取作業を円滑に行なえるものとする。【解決手段】刈取作業中に刈取搬送部(7)が所定高さ以上上昇すると刈取搬送部(7)及び脱穀部(6)の駆動を自動的に停止する自動停止制御をするコンバインにおいて、刈取脱穀自動停止制御入切スイッチ(SW1)が入り状態で、刈取クラッチ及び脱穀クラッチが入り状態で、車速センサ(SE6)が所定速度以上の走行検出し、刈高さセンサ(SE5)が刈取搬送部(7)の所定高さ以上の上昇検出をすると、刈取クラッチ及び脱穀クラッチを切り駆動し、エンジンの回転数を作業回転数より低い低速回転数に調節するコントローラ(21)を設ける。【選択図】図4
