PROBLEM TO BE SOLVED: To provide a paddy field implement properly detecting turn accomplishment at the edge of a levee.SOLUTION: The implement includes a right side clutch 40 for transmitting power to a right wheel 2 and a left side clutch 40 for transmitting power to a left wheel 2. The implement is configured such that the right or left side clutch 40 is operated to be shut off, when a wheel 1 freely steered and operated is steered and operated from the straight advancement position A1 side to the right or left side steering limit A3 side, and the right or left side clutch 40 having been operated to be shut off, is operated to be transmitted, when the wheel 1 freely steered and operated is operated from the right or left side steering limit A3 side to the straight advancement position A1 side. A mileage detecting means detecting the mileage of advance and retreat of the machine body based on the rotation number of the wheel 2 is provided. The turn accomplishment is detected based on operation of the right or left side clutch 40 operated to shut off state, to transmitting state, and a difference between the mileage of the machine body advance and the mileage of the machine body retreat which is detected by the mileage detecting means.COPYRIGHT: (C)2013,JPO&INPIT【課題】水田作業機において、畦際での旋回終了を適切に検出する。【解決手段】右の車輪2に動力を伝達する右のサイドクラッチ40と、左の車輪2に動力を伝達する左のサイドクラッチ40とを備える。操向操作自在な車輪1が直進位置A1側から右又は左の操向限度A3側に操向操作されると、右又は左のサイドクラッチ40が遮断状態に操作され、操向操作自在な車輪1が右又は左の操向限度A3側から直進位置A1側に操作されると、遮断状態に操作された右又は左のサイドクラッチ40が伝動状態に操作されるように構成する。車輪2の回転数に基づいて機体の前進及び後進の走行距離を検出する走行距離検出手段を備える。遮断状態に操作された右又は左のサイドクラッチ40が伝動状態に操作されたことと、走行距離検出手段で検出された機体の前進の走行距離と機体の後進の走行距離との差、とに基づいて旋回終了を検出する。【選択図】図2
