SELECTION PART OF COMBINE HARVESTER

PROBLEM TO BE SOLVED: To provide a selection part of a combine harvester, facilitating the attaching or detaching operation of a prefan to r from a machine frame, and having improved assemblability and maintainability. SOLUTION: The selection part 5 of the combine harvester 1 is equipped with a swinging selection device 50 for selecting a treated product after threshing by swinging, a wind selection device for selecting by wind the treated product after the selection by the swinging by the swinging selection device 50, and the machine frame 91 to which the swinging selection device 50 and the wind selection device are attached. The wind selection device is equipped with a prefan unit 100 (200) obtained by unitizing the prefan 52 for feeding the selection air to the treated product after the selection by the swinging, and a prefan case 10 (210) supporting the prefan 52 so as to be freely rotatable and covering a part thereof, and the prefan unit 100 (200) is made attachable and detachable to and from the machine frame 91. COPYRIGHT: (C)2011,JPO&INPIT