| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem in which leveling property is bad in a field such as sand soil or volcanic ash soil in a conventional rotary tiller in which a rear cover is attached to the rear of a tilling cover and the rear cover serves as a leveler. SOLUTION: The levelers 50, 51 and 52 are attached to the rear cover 33 arranged in the rear of the tilling cover 33 of the rotary tiller 15. These levelers are each constituted so as to be detachable to the rear cover 33 and form the edge in the lower part of a plate. These levelers are each constituted so as to be justified in the vertical direction and are formed in L shape when viewed from the side and the rears of these levelers form inclined parts raised slantly upwardly to constitute a relief 52f. COPYRIGHT: (C)2003,JPO
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