| 摘要 |
PROBLEM TO BE SOLVED: To safely perform a cleaning operation of a body of a combine harvester by using a blower driven by an engine. SOLUTION: The combine harvester has a constitution that an air path 5 communicating with a pressure air blowing side of a blower 3 is branched into a grain conveying air path 6 and a cleaning air path 7, the branched part of the air path 5 is equipped with an air path switching device for switching pressure air from the blower 3 to either state of a state for sending air to a grain conveying air path 6 side and a state for sending air to a cleaning air path 7 side, a cleaning switch connects a blower clutch 9 when the air path switching device is switched to a state for sending air to the cleaning air path 7 side and operation of the cleaning switch connects the blower clutch 9 only when a parking brake 11 mounted on the body 1 of the combine harvester is held in a braking state. COPYRIGHT: (C)2011,JPO&INPIT |
