PROBLEM TO BE SOLVED: To provide a combine harvester in which a waste straw accumulation prevention member provided on a reaping 3 axis case is swung with a simple structure to enable the removal of accumulated things on the member for prevention of waste straw accumulation, thereby improving workability and maintainability.SOLUTION: A reaping part driven by the power of an engine (motor) is arranged in a front part of a machine body the reaping part is provided with a cutting blade and the reaping 3 axis case 44 having a reaping 3 shaft 53 that transmits the power to the cutting blade the reaping 3 shaft case 44 is provided under a harvest conveying means the reaping 3 shaft case 44 has the rotatable waste straw accumulation prevention member 61 provided in a position where strain base ends of conveyed grain culm conveyed by the harvest conveying means touches and over the top surface and a full width of the reaping 3 shaft case 44, and the waste straw accumulation prevention member 61 is turned in the front-back direction of the machine body by slide-contact of the strain base ends of the conveyed grain culms.COPYRIGHT: (C)2013,JPO&INPIT【課題】刈取3軸ケース上に設けた藁屑堆積防止部材を簡単な構成で揺動させ、藁屑堆積防止部材上に堆積した堆積物を除去可能とし、作業性およびメンテナンス性を向上させたコンバインを提供する。【解決手段】機体の前部に、エンジン(原動機)の動力により駆動する刈取部を配設し、刈取部は、刈刃と、刈刃に動力を伝達する刈取3軸53を有する刈取3軸ケース44とを備え、刈取3軸ケース44を、収穫物搬送手段の下方に設け、刈取3軸ケース44には、回動自在な藁屑堆積防止部材61を、収穫物搬送手段で搬送する搬送穀稈の株元端が接触する位置であって、刈取3軸ケース44の上面かつ全幅に亘り設けるとともに、藁屑堆積防止部材61を、搬送穀稈の株元端の摺接により機体の前後方向に回動させる。【選択図】図6
