PROBLEM TO BE SOLVED: To facilitate assembly and maintenance of a holding mechanism and a transmission system.SOLUTION: A thresher of a whole culm input type combine-harvester comprises a threshing frame 14 for supporting a threshing cylinder and a receiving net 18, and a side wall body 16 capable of opening and closing an opening 24 which causes the threshing cylinder and the receiving net 18 to face the lateral outside of a machine body. The threshing frame 14 comprises a frame part 14A forming the opening 24. The side wall body 16 comprises a holding mechanism B which vertically swings with a support shaft 26 oriented in a front-rear direction as a fulcrum and enables the side wall body 16 to be held at an open position. The holding mechanism B is disposed on the frame part 14A. The side wall body 16 comprises an inner wall plate adjacent to the receiving net 18 at a closed position, an outer wall plate 46 located at an interval on the machine body lateral outside of the inner wall plate, and front and rear wall plates 47, 48. The wall plates 47, 48 are provided with attachment parts 16A for the holding mechanism B. The holding mechanism B is provided across the frame part 14A and the attachment parts 16A.SELECTED DRAWING: Figure 10
