PROBLEM TO BE SOLVED: To provide a seedling transplanter equipped with a ground-leveling device so as not to form a rough field surface having much unevenness and a seedling-transplanting device.SOLUTION: This work machine is provided by installing a parallel link 6 for supporting ground-leveling rotors 27a, 27b, a ground-leveling rotor-lifting up and down motor 7 for lifting up and down the parallel link 6, and an action-detecting hand sensor 80 for detecting the action of the lifting up and down motor 7 in a seedling-transplanting part 4, and on activating a lifting up and down cylinder 46 by operating the seedling-transplanting part-lifting up and down lever 78 and on detecting the action of the lifting up and down cylinder 46 by the action-detecting sensor 80 of the lifting up and down motor 7 as jointly moving with the action of the lifting up and down cylinder 46, lifting up and down the seedling-transplanting part 4 by operating the lifting up and down operation lever 78. Since the ground-leveling motor 7 moves jointly, it is possible to perform the up and down movements of the ground-leveling rotors 27a, 27b located in the seedling-transplanting part 4 by only operating the transplanting part-lifting up and down operating lever 78, therefore an operator can concentrate to the straight moving operation or swinging operation of a traveling vehicle body 2, and the transplanting accuracy of the seedlings is improved.COPYRIGHT: (C)2012,JPO&INPIT【課題】凹凸の多い荒れた圃場面を作らないようにした整地装置と苗植付装置を備えた苗移植機を提供すること。【解決手段】 整地ロータ27a,27bを支持する平行リンク6と該平行リンク6を昇降させる整地ロータ昇降モータ7と、該昇降モータ7の作動を検知する作動検知手センサ80を苗植付部4に設け、植付部昇降操作レバー78を操作して昇降シリンダ46を作動させると、該昇降シリンダ46の作動に連動して昇降モータ7の作動検知センサ80が昇降シリンダ46を作動を検知すると昇降操作レバー78を操作して苗植付部4が昇降することにより、整地昇降モータ7が連動して動作するため、苗植付部4にある整地ロータ27a,27bの上下動を植付部昇降操作レバー78を操作するだけで行うことができるので、作業者は走行車体2の直進操作や旋回操作に集中することができ、苗の植付精度が向上する。【選択図】図8
