PROBLEM TO BE SOLVED: To provide a seedling transplanter 1 in which an engine 5, a seedling-planting mechanism 10, and a seedling-transferring and supplying mechanism 11 for transferring and supplying the seedlings to the seedling-planting mechanism by one stock, respectively, are disposed in a travel machine frame 3 supported by travel wheels on both the right and left sides, and which stabilizes a seedling-planting posture, a seedling-planting depth and the travel of the transplanter, and facilitates turning operations, ridge-passing operations and levee-passing operations.SOLUTION: Both the travel wheels are formed of crawlers 4a, 4b comprising a truck frame 19 extended in the longitudinal direction of the travel machine frame and an endless belt 24 revolving in a state wound on a front end pulley and a rear end pulley. The crawlers 4a, 4b are formed movable upward or downward in a parallel posture with a pair of front and rear links 25, 26 whose base ends and other ends are rotatably pivotally attached to the travel machine frame and the truck frame, respectively, and both the crawlers can be rotated and jumped up on the rear ends of the crawlers.COPYRIGHT: (C)2009,JPO&INPIT【課題】左右両側における走行輪体にて支持した走行機体3に,エンジン5,苗植付け機構10,及び苗を一株ずつ前記苗植付け機構に移送してこれに供給するようにした苗移送供給機構11を設けて成る苗移植機1において,苗の植付け姿勢及び植付け深さの安定化と,走行の安定化とを図るとともに,旋回,畝越え及び畦越えの操作を容易にする。【解決手段】前記両走行輪体を,前記走行機体の前後方向に延びるトラックフレーム19と,その前端のプーリ及び後端のプーリに巻掛けられた状態で回転する無端ベルト24とから成るクローラ体4a,4bに構成して,このクローラ体を,基端を前記走行機体に他端を前記トラックフレームに各々回動自在に枢着して成る前後一対のリンク体25,26にて平行姿勢のままで上下動するように構成し,更に,前記両クローラ体を,当該クローラ体の後端を中心としてはね上げ回動可能に構成する。【選択図】図1
