PROBLEM TO BE SOLVED: To provide a grass winding prevention device of a rotary tiller, the device that can prevent false mounting.SOLUTION: A grass winding prevention device of a rotary tiller is characterized as follows: a number of claw mounting brackets with tilling claws mounted therewith are installed on an outer circumferential surface of a claw shaft rotatably supported around a shaft center a grass winding prevention member is installed via the mounting stays provided with the claw mounting brackets between the claw mounting brackets separated in the claw shaft center direction by sandwiching one or more claw mounting brackets therebetween a support hole is provided in the position eccentric at the front and back one side in the claw shaft rotation direction from the center in the claw shaft rotation direction of the claw mounting brackets in the mounting stays and the grass winding prevention member is pivotally connected via the support hole, and the mounting stays are welded and fixed in the claw mounting brackets.COPYRIGHT: (C)2015,JPO&INPIT【課題】誤取付を防止することができるロータリ耕耘機の草巻付き防止装置を提供する。【解決手段】軸心回りに回転自在に支持された爪軸の外周面に、耕耘爪が取り付けられる爪取付ブラケットを多数設け、1つ又は複数の爪取付ブラケットを間に挟んで爪軸軸心方向に離間した爪取付ブラケット間に、該爪取付ブラケットに設けられた取付ステーを介して草巻付き防止部材を架設し、前記取付ステーには、爪取付ブラケットの爪軸回転方向中央から爪軸回転方向前後一側に偏心した位置に枢支孔が設けられていると共に該枢支孔を介して草巻付き防止部材が枢支連結され、前記取付ステーを爪取付ブラケットに溶接固定する。【選択図】図4
