PROBLEM TO BE SOLVED: To provide a paddy working machine having a paddy implement in the rear portion of a machine frame and having a land-grading device between the machine frame and the paddy implement, which can reduce states that the land-grading device presses the mud of a paddy surface.SOLUTION: Provided is the paddy working machine having the paddy implement 5 in the rear portion of the machine frame, characterized by disposing the land-grading device 53 between the machine frame and the paddy implement 5 in a state capable of being freely lifted or lowered to a working position for contacting the land-grading device 53 with the paddy surface G or to an escaping position above the paddy surface G, and disposing a lowering operation means for lowering the land-grading device 53 to the working position, when the paddy implement 5 is lowered to the working position and when the machine frame is forward moved only at a prescribed distance.COPYRIGHT: (C)2009,JPO&INPIT【課題】 機体の後部に水田作業装置を備え、機体と水田作業装置との間に整地装置を備えた水田作業機において、整地装置が田面の泥を押す状態を少なくする。【解決手段】 機体の後部に水田作業装置5を備え、機体と水田作業装置5との間に整地装置53を備えて、整地装置53を田面Gに接地する作業位置と田面Gの上方に位置する退避位置とに亘って昇降自在に構成する。水田作業装置5が作業位置に下降駆動され且つ機体が設定距離だけ前進すると、整地装置53を作業位置に下降駆動する下降操作手段を備える。【選択図】 図1
