PROBLEM TO BE SOLVED: To provide a rotary cultivator which has a plurality of upward or downward movable portions and enables the lowering of cost, the reduction of weight and the prevention of wrong operations, when each movable portion is upward or downward moved with an electric motor.SOLUTION: The rotary cultivator includes movable portion-operating devices 33L, 85, 108 for upward downward moving the movable portions 28, 9, 8 with respect to the movable portions 28, 9, 8, includes rotation operation rods for being rotated on the axes to upward or downward move the movable portions 28, 9, 8 on the movable portion-operating devices 33L, 85, 108, provided with a fitting portion for detachably fitting to the output shaft 62 of the electric motor 56 to rotate the rotation operation rod with the electric motor 56, on one axial side of each rotation operation rod, and formed with the fitting portion of the rotation operation rod of each movable portion-operating devices 33L, 85, 108 in a state of being fittable to the output shaft 62 of the electric motor 56.COPYRIGHT: (C)2011,JPO&INPIT【課題】上げ下げされる可動部を複数備えたロータリ耕耘機において、各可動部を電動モータによって上げ下げさせるに際して、コスト低下、重量軽減、誤操作防止を図る。【解決手段】可動部28,9,8を上げ下げさせるための可動部操作装置33L,85,108を各可動部28,9,8に対してそれぞれ設け、各可動部操作装置33L,85,108は、可動部28,9,8を上げ下げさせるべく軸芯廻りに回転操作される回転操作杆を備え、各回転操作杆の軸芯方向一端側に、該回転操作杆を電動モータ56によって回転駆動させるべく、該電動モータ56の出力軸62を嵌脱自在に嵌合させるための嵌合部を設け、各可動部操作装置33L,85,108の回転操作杆の嵌合部を、一つの電動モータ56の出力軸62を嵌合できるよう形成する。【選択図】図1
