| 摘要 |
PROBLEM TO BE SOLVED: To provide a combine harvester designed not to bridge straw wastes on an oiling hose even in moving an adjustment chain for adjusting threshing depth through improving the oiling mechanism of a threshing depth regulator. SOLUTION: This combine harvester includes a crawler, a grain culm reaping unit provided on the upper part of the crawler, a threshing unit functioning to nip the thus reaped grain culms and thresh and separate the threshed grain culms, and a feed conveyor 30 functioning to adjust the threshing depth for the reaped grain culms with a threshing depth regulator 26 provided with an adjustment chain 51 and deliver the grain culms to the threshing unit and convey them, wherein an oiling hose 50 for oil supply to the adjustment chain 51 is set up in parallel to a turning shaft 52 equipped on the threshing depth regulator 26. Since the oiling hose 50 is parallel to the turning shaft 52 even if the adjustment chain 51 turns vertically relatively to the turning shaft 52 and set up along the outer circumference of the turning shaft, the length of the oiling hose is invariable and need not be slackened, therefore no bridge formation due to chaff, waste straw, or the like, occurs on the oiling hose 50.
|
