| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve such a problem that: when the revolving speed of an electric motor driving the working apparatus of a working machine is to be automatically synchronized with the travel speed of the working machine subjecting work on a farm while being moved by the traveling vehicle, if its travel speed becomes lower, the synchronized revolving speed of the electric motor also becomes lower, resulting in delay of the electric motor's start-up and in expanding of a work-free zone along with reducing work level by the electric motor, leading to shortage of a fertilizer, seeds, etc. to be fed to the farm following the work-free zone, thus getting difficult to mitigate shortage of a fertilizer, seeds, etc. in the work-free zone. <P>SOLUTION: There is provided a feed control mechanism 1 that: in starting a work activity, during a speed-sensing time period necessary for sensing the travel speed V of a fertilizer application seeder 2 by a grounding-type travel speed sensor 42, a preliminary revolution is conducted by revolving an feeding motor 52 with a defined preliminary revolving speed Rm greater than a revolving speed under automatically synchronizing control. <P>COPYRIGHT: (C)2013,JPO&INPIT |
