PROBLEM TO BE SOLVED: To provide a rotary tiller having a rear cover which covers the rear of a plurality of tilling tines attached to a tilling shaft and a soil adhesion preventive plate disposed in a part on the inner surface of the rear cover, and allowing the soil adhesion preventive plate to be easily attached to the rear cover without increasing the number of components.SOLUTION: The rotary tiller includes a plurality of tilling tines 22 attached to the rotatably journaled tilling shaft 21, and the rear cover 24 which covers at least the rear of the plurality of tilling tines 22. The soil adhesion preventive plate 48 is disposed in a part of the inner surface, the surface on the tilling tines 22 side, of the rear cover 24. The lower part of the rear cover 24 is turned back onto the inner surface side to form a hook-shaped locking part 49 as seen from a side, and the lower end of the soil adhesion preventive plate 48 is hooked to the locking part 49 and locked.COPYRIGHT: (C)2012,JPO&INPIT【課題】本発明は、耕耘軸に装着された複数の耕耘爪の後方を覆うリヤカバーを備え、リヤカバー内面の一部に土付着防止板を設けたロータリ耕耘装置において、部品点数を増加させること無く、容易に土付着防止板をリヤカバーに取付けることが可能なロータリ耕耘装置を提供することを課題としている。【解決手段】本発明は、回転可能に軸支された耕耘軸21に装着された複数の耕耘爪22と、該複数の耕耘爪22の少なくとも後方を覆うリヤカバー24とを備え、リヤカバー24の耕耘爪22側の面である内面の一部に土付着防止板48を設けたロータリ耕耘装置であって、リヤカバー24の下部を内面側に折返すことにより側面視フック状の係止部49を形成し、土付着防止板48の下端部を前記係止部49に引掛けて係止する。【選択図】図10
