PROBLEM TO BE SOLVED: To provide a combine harvester capable of not only suppressing grain loss, but also performing threshing treatment while avoiding clogging of threshed grains and an increase in threshing load.SOLUTION: A combine harvester has a spiral blade 32 at a front part of a threshing cylinder 21, and also includes a raking part 30 for raking grain culms on a rear part side of the threshing cylinder 21 by rotating the spiral blade 32. The combine harvester includes a threshing treatment part 40 on a rear side of the raking part 30 in the threshing cylinder 21. A distance A1 between dust-send valves 51 which are both located above a front part of the threshing treatment part 40 is wider than a distance A2 between dust-send valves 51 which are both located above a rear part of the threshing treatment part 40.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2018,JPO&INPIT【課題】穀粒損失を抑制できるのみならず、脱穀処理物の詰まりや脱穀負荷の増大を回避しつつ脱穀処理できるコンバインを提供する。【解決手段】扱胴21の前部に、螺旋羽根32を有すると共に螺旋羽根32の回転によって穀稈を扱胴21の後部側に掻き込む掻込み部30が備えられている。扱胴21における掻込み部30の後側に扱き処理部40が備えられている。扱き処理部40の前部の上方に位置する送塵弁51どうしの間隔A1が、扱き処理部40の後部の上方に位置する送塵弁51どうしの間隔A2より広い。【選択図】図3
