PROBLEM TO BE SOLVED: To provide a rotary working implement in which the soil thickness of tilled soil can be made constant for undulation formed in the forward direction of a field.SOLUTION: There is provided the rotary working implement including: a tine shaft 14 rotating by driving force from an engine of a tractor a plurality of tillage tines 15 protrusively provided toward the outside in the radial direction of the tine shaft 14 a rotary cover 16 covering the tillage tines 15 from above and a rear cover 17 turnably mounted in a vertical direction at the rear end of the rotary cover 16. Furthermore, a pair of side ribs 17A are provided so as to mutually oppose on both sides at the lower end of the rear cover 17, and a slot LH is formed in each of the side ribs 17A. A bolt BT1 is loosely fitted to the slots LH, respectively. A land grading leveler 18 is turnably supported in a vertical direction with the pair of bolts BT1, and the range of turning of the land grading leveler 18 is regulated with the sloths LH.COPYRIGHT: (C)2012,JPO&INPIT【課題】進行方向に形成された圃場の起伏に対して耕耘土の土厚を一定にすることが可能なロータリー作業機を提供する。【解決手段】トラクタのエンジンからの駆動力によって回転する爪軸14と、爪軸14の半径方向外側に向けて突設された複数の耕耘爪15と、耕耘爪15を上方より覆うロータリーカバー16と、ロータリーカバー16の後端に、上下方向に回動自在に取り付けられたリヤカバー17とを備える。そして、リヤカバー17の下端部両側に向かい合うように一対のサイドリブ17Aを設け、それぞれのサイドリブ17Aに長孔LHを形成するとともに、長孔LHにそれぞれボルトBT1を遊嵌し、一対のボルトBT1で整地レベラー18を上下方向に回動自在に支持し、整地レベラー18の回動範囲が長孔LHによって規制される。【選択図】図3
