PROBLEM TO BE SOLVED: To move a work machine accurately along a predetermined route.SOLUTION: A sulky rice transplanter 400 includes: a travel vehicle body 10 traveling in a field a planting device 100 attached on the travel vehicle body 10 and performing work planting a seedling in the field a hydraulic cylinder 50 driving the planting device 100 relative to the travel vehicle body 10 in a direction (X axis direction) crossing perpendicularly a travel direction of the travel vehicle body in a field face and a controller controlling expansion/contraction of the hydraulic cylinder 50 through a hydraulic valve so that the planting device 100 moves along a predetermined route (planting target line).SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】所定の経路に沿って作業機を精度よく移動させる。【解決手段】乗用田植機400は、圃場を走行する走行車体10と、走行車体10に取り付けられ、圃場に苗を植える作業を行う植付装置100と、圃場面内で走行車体の走行方向に対して直角に交差する方向(X軸方向)に、植付装置100を走行車体10に対して相対駆動する油圧シリンダ50と、植付装置100が所定の経路(植付目標線)に沿って移動するように、油圧シリンダ50の伸縮を油圧バルブを介して制御する制御部と、を備える。【選択図】図2
