PROBLEM TO BE SOLVED: To widen a grain culm at a confluence portion of grain culms by widening a facing interval of a stock carrier transport chain at this merging portion by retreating a rotary wheel provided at a terminal end of one stock yuan transport chain. (EN) Provided is a combine grain culm transporting device capable of preventing the stock source transport chain from being disengaged when resolving the above, and returning the stock source transport chain to an appropriate transport state without trouble. SOLUTION: The facing interval of the stock carrier transport chains 77, 89 in the confluence part G2 of the grain culm is widened by retreating the rotary wheels 86a, 86b provided at the terminal end part of one stock carrier transport chain 89 to reach the confluence part. A chain disengagement prevention that prevents the jammed grain culm from being removed from the rotating wheel body 85 provided at the starting end of the stock carrier transport chain 89 due to the looseness of the stock carrier transport chain 89 at this time A body 101 is provided. [Selection diagram] Fig. 13【課題】穀稈の合流部において穀稈が詰まった際に、この合流部における株元搬送チェーンの対向間隔を、一方の株元搬送チェーンの終端部に設ける回転輪体の後退によって拡げて詰まりを解消させる際の株元搬送チェーンの外れを防止して、株元搬送チェーンの適正な搬送状態への復帰を支障なく行うことができるコンバインの穀稈搬送装置を提供する。【解決手段】穀稈の合流部Ｇ２における株元搬送チェーン７７、８９の対向間隔を、一方の株元搬送チェーン８９の終端部に設ける回転輪体８６ａ、８６ｂの後退によって拡げ、係る合流部に詰まった穀稈を取り除くことができるように構成すると共に、この際の株元搬送チェーン８９の弛みに基づく株元搬送チェーン８９の始端部に設ける回転輪体８５からの離脱を阻止するチェーン外れ防止体１０１を設ける。【選択図】図１３
