PROBLEM TO BE SOLVED: To provide a paddy field working machine which can work for the surface of a paddy field and can simultaneously surely form furrows on the surface of the paddy field.SOLUTION: The paddy field working machine in which a paddy field implement having a plurality of land-leveling floats 20 is connected to the rear end of a travel machine frame is characterized by disposing furrow openers F on the tracks of rear wheels, disposing the front ends of the furrow openers F in front of the front ends of the land-leveling floats 20, disposing the rear ends of the land-leveling floats 20 at the overlapping positions of the land-leveling floats 20 on the side view, swingably supporting the front ends of the furrow openers F through a support pin 28 of a lateral posture, and downward energizing the rear ends of the furrow openers F with springs 29S.COPYRIGHT: (C)2011,JPO&INPIT【課題】圃場面に対する作業と同時に圃場面に対して確実に溝を形成する水田作業機を構成する。【解決手段】走行機体の後端に複数の整地フロート20を有する水田作業装置を連結すると共に、後車輪の轍上に溝切器Fを配置した。溝切器Fは、前端が整地フロート20の前端より前側にあり、後端が側面視で整地フロート20の重複する位置に配置されると共に、この溝切器Fの前端を横向き姿勢の支持ピン28を介して揺動自在に支持し、この溝切器Fの後端を下方に向けてバネ29Sで付勢した。【選択図】図6
