| 摘要 |
PROBLEM TO BE SOLVED: To provide an auxiliary cover attached to a rear part of a rear cover of a rotary cultivator, by solving such a problem that the auxiliary cover is conventionally difficult to conduct uniform leveling on a farm field, because one of end parts thereof is raised, when the rotary cultivator is inclined in a right or a left rolling position, and therefore the end part causes an unleveled area partially in the farm field and, on the other hand, the other end part deeply scrapes the farm field. SOLUTION: In this auxiliary cover of the rotary cultivator so structured as to be freely attachably and detachably positioned in a rear bottom part of the rear cover (2), rotatable shafts (8, 8) extending right and left directions are arranged in a rear end part of the rear cover (2), and a leveling plate (3) divided into two or more pieces in a right and left cross direction of cultivation is supported on the rotatable shafts (8, 8), so that each of the pieces is freely rotated upward and downward independently. Further, a cut-out part (5) having a shape like an unfold fun and widen toward a bottom end thereof is formed in an adjacent area of the right and left pieces of the leveling plate (3) divided into the pieces in the right and left cross direction of the cultivation, so that a ridger (4) having two hilling plates is positioned adjacently to the cut-out part (5). COPYRIGHT: (C)2006,JPO&NCIPI
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