| 摘要 |
PROBLEM TO BE SOLVED: To provide a farm implement that does not require backing of a traveling vehicle, enabling offset operation to be carried out efficiently, leaving a small length for an unoperated part at the corner part of a field, to reduce the manual operation load with respect to the unoperated part. SOLUTION: The farm implement 1 is linked to the rear part of a tractor 2 and has an implement body 3 carrying out levee-coating operation of an offset operation by an operation part 5, while moving by the advancing travel of the tractor 2. The farm implement 1 is equipped with an expansion and contraction means 4 for turning the implement body 3, based on the tractor 2. When turning to either direction to the right or to the left at the corner part of the field, while allowing the advancing travel of the tractor 2, the operation part 5 moves in an arc shape, at the vicinity of the corner position P of the corner part of the field, based on the expansion or contraction of the expansion and contraction means 4 so as to draw an expansion-contraction arc-shaped locus A, having a radius of curvature smaller than the radius of curvature of a non-expansion-contraction arc-shaped locus B. COPYRIGHT: (C)2008,JPO&INPIT
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