PROBLEM TO BE SOLVED: To facilitate easy practice of cleaning of a swinging separation shelf of a separation chamber or maintenance under an inlet funnel in a combine harvester.SOLUTION: The combine harvester includes: a transmission joint (32) installed for driving a feed chain (1) provided in a threshing device (3) from the side of the threshing body; a first cover (2) disposed on the outside of the feed chain (1); a second cover (7) integral with the first cover (2) disposed on the outside under the inlet funnel (5) of a threshing chamber (4); and the transmission joint (32) separated to open the first cover (2) and second cover (7) to the outside direction together with the feed chain (1) on a rotation supporting axis (35) as the fulcrum.COPYRIGHT: (C)2011,JPO&INPIT【課題】コンバインにおける選別室の揺動選別棚の掃除や入口漏斗の下方のメンテナンスを容易に行えるものとする。【解決手段】脱穀装置(3)に備えたフィードチェン(1)を脱穀本体側から駆動する伝動継手(32)を設け、フィードチェン(1)の外側に第1カバー(2)を配置すると共に扱室(4)の入口漏斗(5)の下方外側には第1カバー(2)と一体の第2カバー(7)を配置し、伝動継手(32)を離脱させて第1カバー(2)と第2カバー(7)とを回動支軸(35)を支点としてフィードチェン(1)と共に外側方向へ開放可能な構成とする。【選択図】図3