| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thresher where, when the raking retardation of grain straw ear tip side portions is caused on the receiving plate of a threshing chamber entrance, a worker senses the trouble, artificially operates the speed change of the raking device to increase the raking speed more than a conventional speed, thus surely raking in weeds and waste straws to solve a trouble such as clogging. <P>SOLUTION: The thresher is characterized by disposing the raking device (13) for forcibly raking and feeding grain straws into the threshing chamber (11), on the front side entrance receiving plate (8) of the threshing chamber (11), and disposing a transmission (20) for increasing the driving speed of the raking device (13) to a larger second speed than a prescribed first speed on the basis of an artificial operation. The first speed is set to a speed identical to the driving speed of a threshing feed chain (10). <P>COPYRIGHT: (C)2012,JPO&INPIT |
