PROBLEM TO BE SOLVED: To provide a thresher structure of a whole culm charging type combine-harvester capable of improving threshing performance and grain recovery efficiency.SOLUTION: A thresher structure of a whole culm charging type combine-harvester comprises: a threshing cylinder 16 for applying threshing treatment to reaped grain culms supplied to a threshing chamber 14 by being rotated with a spindle 15 installed along a conveying direction of the reaped grain culms as a fulcrum and a top plate 24 covering the upper side of the threshing cylinder 16. The top plate 24 is provided with a plurality of dust sending valves 49 for guiding the reaped grain culms toward the downstream side in a threshing treatment direction along with the rotation of the threshing cylinder 16. The threshing cylinder 16 comprises a body constituent member 47 constituting its body portion, and a plurality of threshing teeth 48 protruding outward from the body constituent member 47.SELECTED DRAWING: Figure 3
