| 摘要 |
PROBLEM TO BE SOLVED: To provide a thresher capable of reducing unthreshed grain culms without upsizing the equipment.SOLUTION: A threshing cylinder 16 rotates about an axis line 17 within a threshing chamber 15. Threshing teeth 22 are formed flat nearly parallel to the axis line 17 of the threshing cylinder 16 and tapering off toward tips, and arranged around the threshing cylinder 16. A grain culm carrier mechanism 11 transports grain culms along the axis line 17 of the threshing cylinder 16. A threshing chamber cover 60 covers at least an upper part of the threshing cylinder 16. Grain culm guide members 62 are provided on a plane of the threshing chamber cover 60 facing the threshing cylinder 16 (ceiling plane 61). The threshing teeth 22 are arranged plurally in a direction parallel to the axis line 17 of the threshing cylinder 16 and a v-shaped groove 23, which becomes wider toward tips of threshing teeth 22, is formed between adjacent threshing teeth 22. The grain culm guide members 62 are arranged so as to protrude into the inside of v-shaped grooves 23. |
