PROBLEM TO BE SOLVED: To provide a seedling transplanter that can reduce a vibration amplitude generated by a gear mesh.SOLUTION: A rotational case 31 is provided with: an eccentricity input gear which can be freely rotatable with respect to a planting rotational shaft 30 a pair of rotational shafts which drive respective planting rods to rotate eccentricity output gears provided to the respective pair of rotational shafts and a pair of transition gears that deliver driving force from the eccentricity input gear to the pair of eccentricity output gears. Rotational centers of each of the pair of transition gears are positioned on the region excluding on the line between a rotational center of the eccentricity input gear and each rotational centers of the pair of eccentricity output gears, and rotational centers of each of the pair of transition gears are positioned so as to be point-symmetry with respect to a rotational center of the eccentricity input gear. An angle axis face 30a and a slope portion 30b continuous from the angle axis face 30a are formed on the planting rotational shaft 30, and a fixing member 39 is provided for fixing the rotational case 31 to the planting rotational shaft 30 by bringing into contact with the angle axis face 30a and the slope portion 30b.SELECTED DRAWING: Figure 15COPYRIGHT: (C)2016,JPO&INPIT【課題】 ギアの噛み合いによる振動振幅を抑えることができる苗植付装置を提供する。【解決手段】 回転ケース31には、植付回転軸30に対して遊転自在な偏心入力ギアを設け、一対の植込杆を各々回動させる一対の回動軸を設け、一対の回動軸に各々偏心出力ギアを設け、偏心入力ギアから一対の偏心出力ギアに各々駆動力を伝動する一対の中継ギアを設け、一対の中継ギアの各々の回転中心を、偏心入力ギアの回転中心と一対の偏心出力ギアの各々の回転中心とを結んだ線上以外に位置させると共に、一対の中継ギアの各々の回転中心を、偏心入力ギアの回転中心を対称点として点対称となる位置に配置し、植付回転軸30に角軸面30aと、角軸面30aに連なる傾斜部30bを形成し、角軸面30aと傾斜部30bに接触して回転ケース31を植付回転軸30に固定する固定部材39を設けて構成する。【選択図】図15
