PROBLEM TO BE SOLVED: To provide a combine that can stabilize a reaping height of a reaping device.SOLUTION: A combine 1 includes a reaping device 90, two or more height detection devices 100 for detecting the reaping height of the reaping device 90, control object reaping height setting means 22 for setting a control object reaping height, and a control device 200 for controlling the reaping height of the reaping device 90 by switching to a high cutting mode or a low cutting mode. The control device 200 calculates a weighted moving average value in which higher weighting is applied for a newer detection value of a lower detection value among detection values of two or more reaping heights detected by the two or more height detection devices 100 in the high cutting mode, and when the weighted moving average value is lower than the set control object reaping height, the reaping device 90 is raised in the upper side in the vertical direction. The control device 200 raises the reaping device 90 in the upper side in the vertical direction, when the detection values of two or more height detection devices 100 among two or more height detection devices 100 are lower than the set control object reaping height in the low cutting mode.COPYRIGHT: (C)2015,JPO&INPIT【課題】刈取装置の刈高さを安定させることができるコンバインを提供すること。【解決手段】コンバイン1は、刈取装置90と、刈取装置90の刈高さを検出する複数の高さ検出装置100と、制御目標刈高さを設定する制御目標刈高さ設定手段22と、高刈モードまたは低刈モードに切り替えて刈取装置90の刈高さを制御する制御装置200と、を備える。制御装置200は、高刈モードでは、複数の高さ検出装置100が検出した複数の刈高さの検出値のうち、低いほうの検出値の最新の検出値側ほど重み付けを重くした加重移動平均値を算出し、設定された制御目標刈高さより加重移動平均値が低い場合、刈取装置90を鉛直方向の上側に上昇させる。制御装置200は、低刈モードでは、設定された制御目標刈高さより複数の高さ検出装置100のうち二つ以上の高さ検出装置100の検出値が低い場合、刈取装置90を鉛直方向の上側に上昇させる。【選択図】図7
