PROBLEM TO BE SOLVED: To provide a combine harvester to be inexpensively produced with a reduced number of parts by being configured to include a laterally cutting blade device for treating through cutting culms of an object to be reaped and a longitudinal cutting blade device along the vertical direction for cutting and separating entanglement of the culms of the object to be reaped with unreaped culms to be driven by a simple transmission mechanism.SOLUTION: A combine harvester includes a first cutting blade device (5) in a laterally directing posture for reaping by cutting culms of an object to be reaped and a second cutting blade device (21) in a vertically directing posture for cutting entangled culms to separate into culms of the object to be reaped and culms of a non-reaping object, and the first cutting blade device (5) and the second cutting blade device (21) are constructed so that the first cutting blade device (5) and the second cutting blade device (21) are driven to be sorted from a drive shaft (32) extendingly installed in the longitudinal direction and reciprocally rotating around a shaft center through a first swing arm (33) and a second swing arm (34) equipped on the front end part of the drive shaft (32).COPYRIGHT: (C)2014,JPO&INPIT【課題】刈取対象の茎稈を切断処理する横向き刈刃装置と、刈取対象の茎稈と未刈側の茎稈との絡み付きを切断分離する上下方向に沿う縦向き刈刃装置を、簡素な伝動機構で駆動できる構成とすることで、部品点数を削減して安価に製造できるものとする。【解決手段】刈取対象の茎稈を切断して刈り取る横向き姿勢の第1刈刃装置(5)と、絡み合った茎稈を切断して刈取対象の茎稈と刈取対象外の茎稈とに分離する縦向き姿勢の第2刈刃装置(21)を備え、これら第1刈刃装置(5)と第2刈刃装置(21)は、前後方向に延設されて軸心回りに往復回動する駆動軸(32)から、この駆動軸(32)の前端部に備えた第1スイングアーム(33)及び第2スイングアーム(34)を介して第1刈刃装置(5)と第2刈刃装置(21)を振り分け駆動する構成とする。【選択図】 図3
