PROBLEM TO BE SOLVED: To provide a combine harvester including a threshing device capable of changing a rotational speed of a threshing cylinder without changing a rotational speed of a second recycle screw and having a threshing device wherein the rotations of the threshing cylinder and the second recycle screw are the same.SOLUTION: The combine harvester is configured such that: a threshing cylinder output shaft 76 is arranged in parallel on one end part side of a distribution shaft 70, a plurality of swingable shift driving gears 75 are provided in the distribution shaft 70, and a plurality of shift driven gears 79 and 80 engaged with the shift driving gears 75 are provided integrally in the threshing cylinder output shaft 76, and further, a second recycle screw output shaft 77 is arranged in parallel on the other end part side of the distribution shaft 70, a driving gear 78 is integrally provided in the distribution shaft 70 and the a driven gear 79 engaged with the driving gear 78 is integrally provided in the second recycle screw output shaft 77.COPYRIGHT: (C)2013,JPO&INPIT【課題】二番還元ラセンの回転速度を変えることなく扱胴の回転速度を変速することができると共に、扱胴と二番還元ラセンの回転が同一方向となる脱穀装置を備えたコンバインを提供する。【解決手段】分配軸70の一端部側に扱胴出力軸76を並設し、分配軸70に摺動自在で複数の変速駆動ギヤ75を設けると共に、扱胴出力軸76に変速駆動ギヤ75と噛合する複数の変速従動ギヤ79,80を一体に設け、更に、分配軸70の他端部側に二番還元ラセン出力軸77を並設し、分配軸70に駆動ギヤ78を一体に設けると共に、二番還元ラセン出力軸77に駆動ギヤ78と噛合する従動ギヤ79を一体に設ける。【選択図】図7
