PROBLEM TO BE SOLVED: To provide a combine-harvester capable of releasing clogging of grain culms in a grain culm conveyance apparatus of a preprocessing part efficiently and reliably.SOLUTION: A support member for guiding and supporting a back face of a grain culm conveyance side of a right conveyance chain is configured movably. Terminal side rollers 101, 102 of a left conveyance chain 32A are configured movably. If clogging occurs, an operator moves the support member to reduce clogging pressure of the right conveyance chain and moves the terminal side rollers 101, 102 to loosen the left conveyance chain 32A to expand an interval of a confluent part X1. In this state, the operator drives the right conveyance chain and the left conveyance chain 32A, conveys clogged grain culms, and releases the clogging.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2016,JPO&INPIT【課題】前処理部の穀稈搬送装置の穀稈詰りを効率よく確実に解除できるコンバインを提供する。【解決手段】右搬送チェンの穀稈搬送側の背面を案内、支持する支持部材を移動自在に構成する。左搬送チェン32Aの終端側ローラ101、102を移動自在に構成する。詰りが生じた場合、オペレータが支持部材を移動操作して、右搬送チェンの詰り圧力を減少し、また終端側ローラ101、102を移動操作して、左搬送チェン32Aを弛ませて、合流部X1の間隔を拡大する。この状態で、右搬送チェン及び左搬送チェン32Aを駆動して、詰り穀稈を搬送して詰りを解除する。【選択図】図7
