THRESHER

摘要

PROBLEM TO BE SOLVED: To reduce the grain amount scattering from a third port through a dust discharge fan to the outside. SOLUTION: The dust discharge fan 28 for discharging dust in a swinging and separating chamber 24 has a suction opening 29a for sucking cyclone air through a suction duct 44 and a lower part (part B) of the suction duct 44 is arranged on the side lower than a lower part (part A) of the suction opening 29a and a difference (h) in level is formed between the lower part (part A) of the suction opening 29a and the lower part (part B) of the suction duct 44 is formed. Grains moved to a third port (C) positioned upwardly at the rear of the swinging and separating chamber 24 are scarcely scattered from the suction opening 29a to the outside by the difference (h) in level.