PROBLEM TO BE SOLVED: To provide a combine harvester capable of preventing planted grain culms from being wound in and pushed down by an opening/closing switching part of an opening/closing mechanism of an opening/closing narrow guide unit and capable of avoiding the opening/closing switching part from being damaged.SOLUTION: The combine harvester is constituted of a grass dividing guide 13 by a rod member extending in an fore and aft direction along a machine body outside from a reaping part 3 and the opening/closing type narrow guide unit 7 comprising the opening/closing mechanism 14 by a folding link switching the grass dividing guide 13 to an overhanging position and a housing position, the opening/closing mechanism 14 rotatably supports a driving shaft 14b integrally constituted with the driving side link 14a of the folding link in the outside of the reaping part 3, has the opening/closing switching part 15 rotatably moving in forward and backward direction at the lower end of the driving shaft 14b, further an auxiliary grass dividing body 16 by the rod member extending in a fore and aft direction so as to surround the movement area of the opening/closing switching part 15 viewed from above is provided.COPYRIGHT: (C)2012,JPO&INPIT【課題】開閉式ナローガイド装置の開閉機構の開閉切替部による植立穀稈の巻込み、押倒しを防止するとともに、同開閉切替部の損傷を回避することができるコンバインを提供する。【解決手段】コンバインは、刈取部3から機体外側に沿って前後方向に延びるロッド部材による分草ガイド13と、この分草ガイド13を張出位置と収納位置とに切替える折畳みリンクによる開閉機構14とからなる開閉式ナローガイド装置7を備えて構成され、上記開閉機構14は、折畳みリンクの駆動側リンク14aと一体構成の駆動軸14bを刈取部3の外側に軸支するとともに、同駆動軸14bの下端に正逆方向に回動動作させる開閉切替部15を備え、かつ、平面視において同開閉切替部15の動作領域を囲むように前後に延びるロッド部材による補助分草体16を設けたものである。【選択図】図3
