GRAIN UNLOADING APPARATUS FOR COMBINE HARVESTER

PROBLEM TO BE SOLVED: To improve operation efficiency in a grain unloading auger for a combine harvester constituted to rotate a grain unloading port, by automatically making the grain unloading port in an upward facing state when an unloading lever for unloading grain is made in a disengaged state. SOLUTION: A grain tank 3 of the combine harvester for temporarily storing grain, a grain lifting cylinder 4 and a grain unloading auger 5 for unloading grain temporarily stored in the grain tank 3 are installed on a traveling body 2 having a traveling apparatus 1. In the grain unloading apparatus, when the grain unloading port 8 of the grain unloading auger 5 is installed rotatably in the peripheral direction relatively to the direction of grain transportation and the unloading lever 65 for unloading grain in the grain tank 3 to the outside of a machine is made in a disengaged state, the grain unloading port 8 is made in an upward facing state.