PROBLEM TO BE SOLVED: To provide a combine harvester the conveyance tube of which is prevented from being damaged.SOLUTION: A combine harvester 1 includes: a grain tank 7 a first conveyance tube 20 connected to the grain tank 7 a second conveyance tube 30 connected to the first conveyance tube 20, having an inside tube 32 and an outside tube 31 and flexibly extensible in an axial direction a blower 60 conveying grains an extensible driving device 40 making the second conveyance tube 30 extend/contract a turning driving device 50 turning the first conveyance tube 20 with respect to a machine body a control device 100 which controls the extensible driving device 40 to retreat the outside tube 31 to a retreat position with respect to the inside tube 32 and reduce the length of the second conveyance tube 30 and also controls the turning driving device 50 to turn the first conveyance tube 20 to a turning storage position on the machine body to make the first conveyance tube 20 and the second conveyance tube 30 in a stored state a support member 33 disposed on the machine body and supporting the outside tube 31 from below in the stored state and a reinforcing member 31A disposed at a position coming in contact with the support member 33 while stored around the outer periphery of the outside cylinder 31.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】搬送筒の損傷を抑制するコンバインを提供すること。【解決手段】コンバイン1は、グレンタンク7と、グレンタンク7に接続された第1搬送筒20と、第1搬送筒20に接続され、内側筒32と外側筒31とを有し軸方向に伸縮自在な第2搬送筒30と、穀粒を搬送する送風装置60と、第2搬送筒30を伸縮する伸縮駆動装置40と、第1搬送筒20を機体に対し旋回させる旋回駆動装置50と、伸縮駆動装置40を制御して外側筒31を内側筒32に対し後退位置まで後退させて第2搬送筒30の長さを短縮し、かつ、旋回駆動装置50を制御して第1搬送筒20を機体上の旋回収納位置まで旋回させて第1搬送筒20及び第2搬送筒30を収納状態とする制御装置100と、機体上に配設され収納状態において外側筒31を下方から支持する支持部材33と、外側筒31の外周において収納状態で支持部材33と当接する位置に配設された補強部材31Aと、を備える。【選択図】図1
