PROBLEM TO BE SOLVED: To provide a combine in which a turning motion is executed by transmitting turning operation input by a steering lever with an electric signal input device to a steering mechanism of a transmission case and which prevents the combine from being not capable of performing turning or from being brought into a dangerous state by performing unexpected turning due to failure of the electric signal input device.SOLUTION: A steering device of a combine includes first detection means 74 and second detection means 72L, 72R for detecting right/left inclination operation of a steering lever 75 and controls a turning mechanism 60 on the basis of a detection signal of both detection means 74, 72L, 72R. The combine includes abnormality determination means 80 for determining an abnormal value of the detection signal of the first detection means 74 and second detection means 72L, 72R. When the abnormality detection means determines that one of the first detection means 74 and second detection means 72L, 72R detects an abnormal value, the turning mechanism 60 is controlled based on a detection signal of the other detecting a normal value.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2017,JPO&INPIT【課題】本発明は、操向レバーで入力する旋回操作を電気信号入力装置でミッションケースの操向機構に伝えて旋回動作するコンバインにおいて、電気信号入力装置の故障により旋回不能に至ったり予測外の旋回を行って危険な状態になったりすることを防ぐことを課題とする。【解決手段】操向レバー75の左右傾動操作を検出する第一検出手段74と第二検出手段72L,72Rを設け、両検出手段74,72L,72Rの検出信号に基づいて旋回機構60を制御するコンバインの操向装置において、第一検出手段74と第二検出手段72L,72Rの検出信号が異常値であることを判定する異常判定手段80を設け、第一検出手段74と第二検出手段72L,72Rの一方が異常値を検出していると判定すると、正常値を検出している他方側の検出信号に基づいて旋回機構60を制御することを特徴とするコンバイン。【選択図】図7
