PROBLEM TO BE SOLVED: To simply remove waste straws clogged by lifting a waste straw transporting chain without opening a threshing cylinder cover and to improve the efficiency of combine harvester operation.SOLUTION: The combine harvester is equipped with a waste straw transporting apparatus (14) for nipping waste straws after threshing and transporting the waste straws to the rear arranged at the rear of a threshing chamber (8) of a threshing apparatus (4) and the waste straw transporting apparatus (14) is composed of a waste straw transporting chain (16) wound along a chain rail (15) and a nipping rod (17) opposing to the lower side of the waste straw transporting chain (16) and composed so that the side of the starting end of the waste straw transporting chain (16) is vertically rotated with the shaft center (P) of a sprocket (27) for driving the chain axially installed at the intermediate site of the chain rail (15) as a fulcrum. A lifting rotation regulating means (35) capable of changing over the waste straw transporting chain (16) to a regulating state for regulating the lifting rotation thereof and a regulating released state for permitting the lifting rotation thereof is installed between a waste straw supporting frame (34) on the side of the machine body and the chain rail (15).COPYRIGHT: (C)2009,JPO&INPIT【課題】扱胴カバーを開けることなく排藁搬送チェンを持ち上げて詰った排藁を簡単に除去することができるものとし、コンバイン作業の能率を向上させる。【解決手段】脱穀装置(4)の扱室(8)の後方に脱穀後の排藁を挟持して後方に搬送する排藁搬送装置(14)を設け、該排藁搬送装置(14)を、チェンレール(15)に沿って券回する排藁搬送チェン(16)と該排藁搬送チェン(16)の下側に対向する挟持杆(17)とから構成し、チェンレール(15)の中間部位に軸架したチェン駆動用スプロケット(27)の軸芯(P)を支点として排藁搬送チェン(16)の始端側が上下回動する構成とし、機体側の排藁支持フレーム(34)とチェンレール(15)との間に排藁搬送チェン(16)の上昇回動を規制する規制状態と上昇回動を許容する規制解除状態とに切り替え可能な上昇回動規制手段(35)を設ける。【選択図】 図3
