To configure a combine-harvester that enables easy maintenance of a thresher and is capable of eliminating involution of reaped grain culm at a front part of a threshing cylinder.SOLUTION: A thresher comprises: a threshing cylinder 11 that rotates integrally with a threshing cylinder shaft 11a； and a receiving net 27 in a curved shape along an outer periphery on the under side of the threshing cylinder 11. On a front surface part of a cylinder body constituting the threshing cylinder 11 is formed a holding recess part 11Fg depressed in a circular shape around a rotation axis core Y1 of the threshing cylinder 11. On a threshing chamber 25's surface opposite to the front surface part of the cylinder body is provided a front part regulation body 76 along an inner peripheral wall 11Fga of the holding recess part 11Fg in an inserted state. A lower end position P of the inner peripheral wall 11Fga is located at a position higher than an upper end position Q of the receiving net 27's lateral end part on the side on which a grain culm supply port 10a of the thresher 10 is located.SELECTED DRAWING: Figure 3【課題】脱穀装置のメンテナンスを容易に行わせ、扱胴の前部での刈取穀稈の巻き込みを解消できるコンバインを構成する。【解決手段】脱穀装置が、扱胴軸１１ａと一体回転する扱胴１１と、扱胴１１の下側の外周に沿うように湾曲形状となる受網２７とを備えている。扱胴１１を構成する胴体の前面部に、扱胴１１の回転軸芯Ｙ１を中心とする円形に窪む保持用凹部１１Ｆｇが形成され、扱室２５のうち胴体の前面部に対向する面に、保持用凹部１１Ｆｇの内周壁１１Ｆｇａに沿う前部規制体７６が入り込む状態で備えられ、内周壁１１Ｆｇａの下端位置Ｐが、受網２７のうち脱穀装置１０の穀稈供給口１０ａが位置する側の横端部の上端位置Ｑより高い位置に位置させた。【選択図】図３
