PROBLEM TO BE SOLVED: To provide a seedling transplanter having a posture control device for making the travelling posture of a machine body suitable for the work during planting or turning by controlling a rear wheel rolling mechanism with cylinders.SOLUTION: The seedling transplanter includes: a rolling machine frame 41 disposed in the rear of a vehicle body 4 to rotate in the lateral direction around a center rotation axis 42 rear wheel transmission cases 8 and 8 at both ends of the rolling machine frame 41 for feeding rotational drive force to rear wheels 3 and 3 a rotary actuator 9 for rotating the rolling machine frame 41 and a steering angle detection member 7 for detecting the steering angle of a handle 1. The inside of turning is determined from the steering angle detected by the steering angle detection member 7, and the rotary actuator 9 is extended or contracted to rotate the rolling machine frame 41 to a side in which the inside of turning of the vehicle body 4 is low, so that the vehicle body is in an inclined posture.COPYRIGHT: (C)2012,JPO&INPIT【課題】後輪ローリング機構をシリンダで制御して、植付作業時や旋回作業時に機体の走行姿勢が作業に適した形態となる姿勢制御装置を設けた苗移植機を提供する。【解決手段】車体4の後部に中央回動軸42を中心に左右方向に回動するローリング機枠41を設け、ローリング機枠41の両端部に後輪3,3に回転駆動力を供給する後輪伝動ケース8,8を設け、ローリング機枠41を回動させる回動アクチュエータ9を設け、ハンドル1の操舵角度を検出する操舵角度検出部材7を設け、操舵角度検出部材7の検出した操舵角度から旋回内側を判別して回動アクチュエータ9を伸張または収縮させて車体4の旋回内側が低位となる側にローリング機枠41を回動させて傾斜姿勢にする構成とした。【選択図】 図3
