| 摘要 |
PROBLEM TO BE SOLVED: To attain a grain unloading auger for combine that is superior in durability and extensible, at low cost. SOLUTION: The grain unloading auger 9 of a combine, capable of transporting grains from a feed port 9a to a discharge port 9b and constituted to be extensible is provided with a sliding mechanism, to slide a second screw 41 relative to a first screw 40, while overlapping with the first screw 40, when a first case and a second case 23, 24 are extended or contracted with an extension mechanism 33. The sliding mechanism is provided with a spiral guide groove 47b, formed on one of the first and second screws 40, 41 and a guide member 51, formed on the other one of the first and the second screws 40, 41. The guide groove 47b is engaged with the guide member 51. COPYRIGHT: (C)2008,JPO&INPIT
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