PROBLEM TO BE SOLVED: To provide an eight row crop-reaping pretreatment portion which has a right main foot conveyer for conveying reaped stalks for four right rows and a left main foot conveyer for conveying reaped stalks for four left rows, can avoid that an angle &theta between the right main foot conveyer and the left main foot conveyer at a merging portion is excessively enlarged, and can smoothly join the reaped stalks for four left rows to the reaped stalks for four right rows.SOLUTION: The combined harvester 1 having the eight row crop-reaping pretreatment portion 2 is characterized by disposing the right main foot conveyer D1 for conveying reaped stalks for four right rows to a joining portion at a left rear position, and the left main foot conveyer D2 for conveying reaped stalks for four left rows to the joining portion at the right rear position, in the pretreatment portion 2, making the upstream portion conveyance angle &theta1 of the left main foot conveyer D2 less than the conveyance &theta2 of the right main foot conveyer D1, and making the downstream portion conveyance angle &theta3 of the left main foot conveyer D2 larger than the conveyance &theta2 of the right main foot conveyer D1.COPYRIGHT: (C)2010,JPO&INPIT【課題】右側4条分の刈取茎稈を搬送する右主株元搬送体と、左側4条分の刈取茎稈を搬送する左主株元搬送体とを備えた8条刈りの前処理部を構成するにあたり、合流部における右主株元搬送体と左主株元搬送体とのなす角θが大きくなり過ぎることを回避し、左側4条分の刈取茎稈と右側4条分の刈取茎稈をスムーズに合流させることができる。【解決手段】8条刈りの前処理部2を備えたコンバイン1において、前処理部2に、右側4条分の刈取茎稈を左後方の合流部に向けて搬送する右主株元搬送体D1と、左側4条分の刈取茎稈を右後方の合流部に向けて搬送する左主株元搬送体D2とを備えると共に、左主株元搬送体D1の上流部搬送角θ1を、右主株元搬送体D1の搬送角θ2よりも小さくし、かつ、左主株元搬送体D1の下流部搬送角θ3を、右主株元搬送体D1の搬送角θ2よりも大きくする。【選択図】図7
