PROBLEM TO BE SOLVED: To provide a rice transplanter having a mud sweeper which hardly becomes resistance in traveling while efficiently removing mud adhering to rear wheels of a working vehicle and to lugs of the wheels.SOLUTION: A roll brush 17 which is rotatable or rotatably drivable is arranged at a tip of a brush arm 16 which protrudes from a vehicle body 4 at a rotational upper peripheral part of a rear wheel 3 and downwardly at a front side from a frame 15, a turning support shaft 19 of the brush arm 16 having the roll brush 17 is arranged at a vehicle body frame 11 at a rear wheel 3 upper side part so as to be vertically turnable, the roll brush 17 at the tip of the brush arm is arranged in an inclined posture at which the roll brush is located below the rear wheel 3 in a forward rotation direction, and mud which adheres to a clearance between wheel lugs 2 is swept by the rotation of the roll brush 17.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】作業車両の後輪、及び後輪のラグに付着した泥土を効率的に除去しつつ、走行の抵抗となりにくい泥落し装置を備える田植機を提供する。【解決手段】後輪3回転上周部の車体4、フレーム15から前側下方に突出するブラシアーム16の先端部に、回転自在、又は回転駆動可能のロールブラシ17を設け、ロールブラシ17を有したブラシアーム16の回動支軸部19を、後輪3上側部の車体フレーム11部に上下回動可能に設け、このブラシアーム先端のロールブラシ17を後輪3の前進回転方向側下方に位置させた傾斜姿勢に設け、ロールブラシ17の回転によって各車輪ラグ2間に付着する泥土を掻き落とす構成とする。【選択図】 図1