PROBLEM TO BE SOLVED: To provide a combine harvester capable of removing dust attached to an air conditioner by reversely rotating a rotary fan during a harvesting work.SOLUTION: A cabin is provided with an air conditioner having a rotary fan rotatable normally and reversely and an outside air intake port with which a dust-proof net is stretched. While outside air for heat exchange is supplied to the air conditioner through the outside air intake port by the rotary fan rotating normally, blow-off removal wind for blowing off dust attached to the dust-proof net so as to remove the dust is blown toward the outside of the cabin through the outside air intake port by the rotary fan rotating reversely. The outside air intake port is provided on either one of left and right side walls of the cabin. A grain delivering part has a tiltable and rotatable delivering horizontal auger with a base end part as a fulcrum. A grain delivering port is provided at a tip of the delivering horizontal auger. When the rotary fan rotates reversely and the blow-off removal wind is blown through the outside air intake port, if the grain delivering port is disposed on the downstream side of the blow-off removal wind, the reverse rotating operation of the rotary fan is stopped.COPYRIGHT: (C)2015,JPO&INPIT【課題】収穫作業中であっても回転ファンを逆回転させることで、冷暖房装置に付着している塵埃を取り除くことができるコンバインを提供すること。【解決手段】キャビンに、正・逆回転可能な回転ファンを有する冷暖房装置と、防塵埃網を張設した外気取入口を設けて、正回転する回転ファンにより冷暖房装置に外気取入口を通して熱交換用の外気を供給する一方、逆回転する回転ファンにより外気取入口を通して防塵埃網に付着した塵埃を吹散して除去する吹散除去風をキャビン外部へ向けて送風するようにし、外気取入口はキャビンの左右側壁のいずれか一側壁に設け、穀粒搬出部は、基端部を支点として傾倒自在かつ旋回自在とした搬出横オーガを有し、搬出横オーガの先端部には穀粒搬出口部を設けて、回転ファンが逆回転して外気取入口から吹散除去風が流出されている際に、吹散除去風の下流側に穀粒搬出口部が配置された場合には、回転ファンの逆回転作動が停止されるようにした。【選択図】図2
