PROBLEM TO BE SOLVED: To prevent deformation or the like of a planting claw and clogging with seedlings by disengaging a planting clutch only when lowering a planting part, thereby stopping the planting claw at a prescribed position.SOLUTION: The planting claw attached to the planting part is connected in an association manner to a power source of a traveling part through the planting clutch, and a prescribed position stopping action to stop the planting claw at a prescribed planting action position is associated with the disengaging action of the planting clutch. In the riding rice transplanter having the configuration, a transmission clutch is provided in a transmission mechanism connecting the power source and the planting clutch in an association manner, the disengaging action of the transmission clutch is associated with the lifting operation of the planting part, the engaging action of the transmission clutch is associated with the lowering operation of the planting part, and the disconnection of the planting drive is made to be controllable at or before the prescribed position stopping action.COPYRIGHT: (C)2013,JPO&INPIT【課題】植付部を下降させた場合だけ植付クラッチを切断動作させて植付爪を所定位置停止動作させることで、植付爪の変形等や苗詰まりを回避すること。【解決手段】走行部に設けた動力源に植付クラッチを介して植付部に設けた植付爪を連動連結して、植付クラッチの切断動作に植付爪が所定の植付作動位置で停止する所定位置停止動作を連動させた乗用田植機であって、前記動力源と植付クラッチとを連動連結する伝動機構に伝動クラッチを設けて、植付部の上昇操作に伝動クラッチの切断動作を連動させるとともに、植付部の下降操作に伝動クラッチの接続動作を連動させ、所定位置停止動作までに植付駆動の切断を制御可能とした。【選択図】図3
