PROBLEM TO BE SOLVED: To provide a walking-type tiller improved in operating efficiency through preventing sticking, on the wall surface of a rotor plate, of soil gotten in between the rotor plates adjoining each other as a result of being scraped up by its tilling tines.SOLUTION: The walking-type tiller includes the following construction: onto both tips of a drive shaft 36, an outer side rotor plate 41 provided, on its outer circumference, with a plurality of tilling tines 41b inclined toward the side of a gear case 33 is fixed in between the outer side rotor plate 41 of the drive shaft 36 and the gear case 33, an inner side rotor plate 42 provided, on its outer circumference, with a plurality of tilling tines 42b1, 42b2 alternately inclined toward the side of the outer side rotor plate 41 and that of the gear case 33 is fixed and in between the outer side rotor plate 41 and the inner side rotor plate 42 of the drive shaft 36, an auxiliary rotor plate 51 provided, on its outer circumference, with a plurality of auxiliary tines 51b1, 51b2 alternately inclined toward the side of the outer side rotor plate 41 and that of the inner side rotor plate 42 and laid radially inner side compared to the tilling tines 41b, 42b1, 42b2 is fixed.COPYRIGHT: (C)2013,JPO&INPIT【課題】耕耘爪により掻き上げられて隣り合うロータ板の間に入り込んだ土がロータ板の壁面に付着することを防止して歩行型耕耘機の作業効率を高めることである。【解決手段】駆動軸36の両先端に、外周部にギヤケース33の側に向けて傾斜する複数の耕耘爪41bを備えた外側ロータ板41を固定し、駆動軸36の外側ロータ板41とギヤケース33との間に、外周部に外側ロータ板41の側とギヤケース33の側とに向けて交互に傾斜する複数の耕耘爪42b1,42b2を備えた内側ロータ板42を固定するとともに、駆動軸36の外側ロータ板41と内側ロータ板42との間に、外周部に外側ロータ板41の側と内側ロータ板42の側とに向けて交互に傾斜するとともに耕耘爪41b,42b1,42b2よりも径方向内側に配置される複数の補助爪51b1,51b2を備えた補助ロータ板51を固定する。【選択図】図2
