PROBLEM TO BE SOLVED: To simplify treating operation and to improve discharging operability of grains.SOLUTION: This combine harvester having a casting cylinder (38) installed in the tip part of a discharging auger (17) for discharging the grains in a grain tank (15) so that the direction for discharging the grains may be freely changed is characterized in that a ring gear (50) is fixed to the casting cylinder (38), and an out-put gear (59) of a casting opening motor (57) is constituted so as to be elastically pressed to and meshed with the ring gear (50) and so as to be freely contacted or separated.COPYRIGHT: (C)2001,JPO【課題】 取扱い操作の簡略化並びに穀粒排出作業性の向上などを図る。【解決手段】 グレンタンク(15)の穀粒を搬出する排出オーガ(17)先端部に投出筒(38)を穀粒排出方向変更自在に設けるコンバインにおいて、投出筒(38)にリングギヤ(50)を固定させ、投出口モータ(57)の出力ギヤ(59)をリングギヤ(50)に接離自在に弾圧噛合させるように構成したことを特徴とする。
