| 摘要 |
PROBLEM TO BE SOLVED: To easily switch normal reaping threshing work and manual threshing work.SOLUTION: A base part of a guide 54 is pivotally supported on a support member 60 on a reaped culm conveyance device 11 side so as to rotate vertically, the guide preventing a manually reaped grain culm from being placed onto a feed chain 13. A potentiometer is arranged which detects a vertical rotation position of the guide 54. When the potentiometer detects a vertical rotation of the guide 54 from a position where the guide prevents the manually reaped grain culm from being placed onto the feed chain 13 to a retreat position allowing the manually reaped grain culm to be placed onto the feed chain 13, a mode is switched into a manual threshing mode and a rotation speed of an engine 20 is reduced automatically to a predetermined rotation speed by means of the swith into the manual threshing mode. A predetermined time lag is arranged from a time point of the detection of rotation of the guide 54 to the retreat position by the potentiometer to the switched manual threshing mode.SELECTED DRAWING: Figure 3 |
