PROBLEM TO BE SOLVED: To attach a linear member for grass winding prevention to the vicinity of an external periphery of a claw shaft in a rotary tiller in which tilling claws are attached to flanges.SOLUTION: A plurality of flanges 4 are arranged in a claw shaft direction at an external periphery of a claw shaft 3 which is rotatably drive-supported to a rotary machine frame 10 around an axis, and tilling claws 2 are attached to the respective flanges 4. Penetration holes 5 penetrating in the claw shaft direction are formed at all the flanges 4, linear members 6 for grass winding prevention are made to penetrate all the penetration holes 5, and come-off prevention means 7 for inhibiting the come-off of the flanges 4 located at both external end sides of the claw shaft direction to the inside of the claw shaft direction from the penetration holes 5 are arranged at both ends of the linear members 6.COPYRIGHT: (C)2015,JPO&INPIT【課題】 フランジに耕耘爪を取付けるロータリ耕耘機に、草巻付き防止用の線状部材を爪軸の外周近くに取付けることができるようにする。【解決手段】 ロータリ機枠10に軸心回り回転駆動自在に支持された爪軸3の外周に、フランジ4を爪軸方向に複数設け、各フランジ4に耕耘爪2を取付ける。前記全フランジ4に爪軸方向に貫通された貫通孔5が形成され、この全貫通孔5に草巻付き防止用の線状部材6が挿通され、この線状部材6の両端に、爪軸方向両外端側に位置するフランジ4の貫通孔5から爪軸方向内方へ抜けるのを阻止する抜止手段7が備えられている。【選択図】図1
