PROBLEM TO BE SOLVED: To provide a combine-harvester capable of measuring the internal quality of grains by a small-sized internal quality measuring device and to enhance the detection precision by the internal quality measuring device.SOLUTION: A combine-harvester comprises a sampling unit 50 for sampling and temporally holding a portion of grain supplied to a grain tank 10, as the measurement object of an internal quality measuring device 40. Further comprised is an opening/closing plate 54 which can be switched between at an elevated closing position for closing an exhaust port 52a formed in the lower portion of a reception holding portion 52 for holding the sampled grain, and at a lowered opening position for opening the exhaust port 52a. The opening/closing plate 54 is formed into such a shape in the state positioned at the elevated closing position as is bent upward, as viewed in the direction along an opening/closing axis X, and is arranged such that the uppermost end portion 54t of the bent portion is lower than the lowermost end of the detection region of the internal quality measuring device 40.COPYRIGHT: (C)2014,JPO&INPIT【課題】小型な内部品質計測装置で穀粒の内部品質を計測でき、かつ内部品質計測装置による検出精度を高くできるコンバインを提供する。【解決手段】穀粒タンク10に供給された穀粒の一部を内部品質計測装置40の計測対象としてサンプリングして一時的に保持するサンプリング部50を備えてある。サンプリングされた穀粒を保持する受け止め保持部52の下部に設けた排出口52aを閉塞する上昇閉位置と、排出口52aを開放する下降開位置とに切り換え可能な開閉板54を備えてある。開閉板54を、上昇閉位置に位置した状態において、開閉軸芯Xに沿う方向視で上方向きに屈曲した形状に形成し、かつ屈曲部の最上端箇所54tが内部品質計測装置40の検出領域の最下端よりも低い位置となるように配備してある。【選択図】図8
