PROBLEM TO BE SOLVED: To provide a rice transplanter for reducing a power loss by simplifying structure of an interrow spacing transmission mechanism and by reducing the number of gears in a power transmission path.SOLUTION: In the rice transplanter 1 including a planting unit 3 driven by power transmitted from a mission case 7, an input shaft 31, a first power transmission shaft 32, a second power transmission shaft 33, and a planting output shaft 34 are disposed in the power transmission path from the mission case 7 to the planting unit 3, a first interrow spacing transmission mechanism 50 is composed between the input shaft 31 and the first power transmission shaft 32, a second interrow spacing transmission mechanism 60 is composed between the first power transmission shaft 32 and the second power transmission shaft 33, a planting clutch 70 is composed between the second power transmission shaft 33 and the planting output shaft 34, and the input shaft 31, the second power transmission shaft 33, and the planting output shaft 34 are disposed on the same axis.COPYRIGHT: (C)2012,JPO&INPIT【課題】株間変速機構の構造を簡素化するとともに動力伝達経路におけるギヤの数を少なくして動力損失を低減する田植機を提供する。【解決手段】ミッションケース7から伝達された動力で駆動する植付装置3を備える田植機1において、前記ミッションケース7から前記植付装置3までの動力伝達経路に、入力軸31と、第一伝動軸32と、第二伝動軸33と、植付出力軸34と、を配置して、前記入力軸31と前記第一伝動軸32との間に第一株間変速機構50を構成し、前記第一伝動軸32と前記第二伝動軸33との間に第二株間変速機構60を構成し、前記第二伝動軸33と前記植付出力軸34との間に植付クラッチ70を構成し、前記入力軸31と前記第二伝動軸33と前記植付出力軸34とを同一軸心上に配置したものである。【選択図】図4
