PROBLEM TO BE SOLVED: To provide a combine harvester capable of preventing delivery delay of grain stalks even when the conveying speed for conveying the grain stalks in a reaping part is slow, and improving threshing performance.SOLUTION: A combine harvester includes a conveying part 5 having a reaping part 3 for reaping grain stalks, a feed chain 12 for conveying the grain stalks to a threshing part 4, and an auxiliary conveying device 13 arranged front of the feed chain 12 and provided between the reaping part 3 and the feed chain 12, and arranges a first threshing shaft 47 of the reaping part 3 in a right and left horizontal direction in front of the threshing part 4. The auxiliary conveying device 13 can move to a position contacting with the grain stalks when the rotating speed of the first threshing shaft 47 is faster than the predetermined speed.COPYRIGHT: (C)2014,JPO&INPIT【課題】刈取部の穀稈を搬送する速度が遅い状態であっても、穀稈の受け継ぎ遅れを無くし、脱穀性能を向上させることができるコンバインを提供する。【解決手段】穀稈を刈り取る刈取部3と、穀稈を脱穀部4へと搬送するフィードチェーン12と、フィードチェーン12の前方に配置され、刈取部3とフィードチェーン12との間に設けられた、補助搬送装置13とを有する搬送部5と、を備え、刈取部3の刈取第一軸47を脱穀部4の前方に左右水平方向に配置し、補助搬送装置13は、刈取第一軸47の回転速度が所定速度よりも速くなった際に、穀稈と接触する位置に移動可能に構成した。【選択図】図1
