PROBLEM TO BE SOLVED: To provide a tillage rotor capable of preventing erroneous attachment of tillage claws of the tillage rotor to which different types of tillage claws are mounted when replacing the tillage claws.SOLUTION: A tillage rotor 10 comprises a rotary shaft 11 supported rotatably and a plurality of tillage claws 15 mounted at predetermined intervals in a circumferential direction of the rotary shaft 11 at mounting positions having predetermined intervals in a shaft direction of the rotary shaft. Right tillage claws 17 whose tip sides are curved to the shaft direction right side of the rotary shaft 11 and left tillage claws 18 whose tip sides are curved to the shaft direction left side are mounted alternately in the circumferential direction at the mounting positions of the rotary shaft 11. The right tillage claws 17 and the left tillage claws 18 have colors different from each other. The plurality of right tillage claws 17 or left tillage claws 18 of the same kind adjacent in the shaft direction are disposed spirally from one side to the other side in the shaft direction.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】異なる種類の耕耘爪が装着された耕耘ロータの耕耘爪を交換する際に、耕耘爪の付け間違いを防止可能な耕耘ロータを提供する。【解決手段】耕耘ロータ10は、回転自在に支持される回転軸11と、回転軸11の軸方向に所定間隔を有した装着位置に回転軸の周方向に所定間隔を有して取り付けられた複数の耕耘爪15とを備える。回転軸11の装着位置には、耕耘爪の先端側が回転軸11の軸方向右側に湾曲する耕耘爪右17及び軸方向左側へ湾曲する耕耘爪左18が周方向に交互に取り付けられている。耕耘爪右17及び耕耘爪左18は、互いに異なる色彩が付けられ、軸方向に隣接する同一種類の複数の耕耘爪右17又は耕耘爪左18は、軸方向一方側から他方側に向かって螺旋状に配置される。【選択図】図1
