PROBLEM TO BE SOLVED: To improve planting accuracy.SOLUTION: In a seedling transplanter, a traveling device, a seedling transfer part for transferring seedlings, and a seedling planter (6) for planting the seedlings transferred to a planting supply position by the seedling transfer part to a farm field are arranged, the seedling planter (6) plants the seedlings into the farm field by operating a seedling planting gripper (31) for gripping the seedlings in the planting supply position in a trace which is long in a fore-and-aft direction, a transmission switching mechanism (87) which is switchable to a constant velocity transmission state for transmission to a transmission passage to the seedling planter (6) at a constant velocity and a non-constant velocity transmission state for transmission at a non-constant velocity is arranged, and the non-constant velocity transmission state becomes longer than the constant velocity transmission state in an insertion length of the seedlings into soil by the seedling planter (6).COPYRIGHT: (C)2014,JPO&INPIT【課題】 本発明は、植付精度を向上させることを課題とする。【解決手段】 走行装置と、苗を搬送する苗搬送部と、苗搬送部によって植付供給位置へ搬送された苗を圃場に植付ける苗植付け装置(6)とを設け、苗植付け装置(6)は、植付供給位置の苗を挟持する苗植付け挟持具(31)を前後に長い軌跡で作動させて苗を圃場に植付ける構成とし、苗植付け装置(6)への伝動経路に等速で伝動する等速伝動状態と不等速で伝動する不等速伝動状態とに切替可能な伝動切替機構(87)を設け、等速伝動状態よりも不等速伝動状態の方が苗植付け装置(6)による土壌への苗の挿入長さが長くなる構成とした苗移植機とする。【選択図】図6
