PROBLEM TO BE SOLVED: To reduce a loss of grains by stabilizing an attitude of a conveyance cylinder during a grain discharge operation and reducing spill of the grains due to displacement of a discharge position.SOLUTION: The combine harvester comprises: a grain storage device (1) including a thresher (18) at one side of the left/right of a machine body frame (3) having a traveling device (20), and a conveyance cylinder (6) for grain discharge at the other side of the left/right of the machine body frame (3) and a reaper (21) at the front side of the machine body frame (3). The combine harvester further comprises a retaining device (70A) that supports the base part of the conveyance cylinder (6) so as to rotationally turn to the outer lateral side of the machine body, about an axial center in the front/rear direction and retains the turning position of the conveyance cylinder (6) by connecting between the conveyance cylinder (6) and a fixing part provided in the machine body frame (3) side by a chain-like or rope-like connection member (73). The connection interval between the fixing part of the support frame (17) side and the conveyance cylinder (6) by the connection member (73) can be freely changeable.COPYRIGHT: (C)2014,JPO&INPIT【課題】穀粒排出作業中における搬送筒の姿勢を安定させ、排出位置のずれによる穀粒のこぼれを少なくし、穀粒の損失を低減する。【解決手段】走行装置(20)を備えた機体フレーム(3)の左右一側の部位に脱穀装置(18)を設け、機体フレーム(3)の左右他側の部位には穀粒排出用の搬送筒(6)を備えた穀粒貯留装置(1)を設け、機体フレーム(3)の前側に刈取装置(21)を設けたコンバインにおいて、搬送筒(6)の基部を前後方向の軸心回りに機体外側方へ回動自在に支持し、搬送筒(6)と機体フレーム(3)側に備えた固定部の間を鎖状または索状の連結部材(73)で連結することで搬送筒(6)の回動位置を保持する保持装置(70A)を備える。また、連結部材(73)による支持フレーム(17)側の固定部と搬送筒(6)の連結間隔を変更自在な構成とする。【選択図】 図8
