PROBLEM TO BE SOLVED: To facilitate assembly and maintenance of a holding mechanism and a transmission system.SOLUTION: A thresher device of whole culm charging type combine harvester includes: a thresher frame 14 supporting a threshing cylinder and a receiving net 18 and an opening/closing side wall body 16 closing an opening 24 so as to open/close, the opening allowing the thresher cylinder 17 and receiving net 18 to face a lateral outer side of a machine body. The thresher frame 14 includes a frame part 14A forming the opening 24. The side wall body 16 includes a holding mechanism B capable of oscillating vertically with a support shaft 26 in a front/rear direction as a fulcrum, between a lower closing position closing the opening 24 and an upper opening position opening the opening 24 and holding the side wall body 16 at the opening position. The holding mechanism B is arranged at a rear edge part 14Aa of the frame part 14A.SELECTED DRAWING: Figure 10
