PROBLEM TO BE SOLVED: To provide a rotary working machine capable of reliably shaking off earth and soil attached to an apron member.SOLUTION: A rotary working machine 10 includes: a working rotor 5 a shield cover body part 2 for covering the upper side of the working rotor 5 an apron body part 3 arranged at a rear side direction position of the shield cover body part 2 and a connection part 31 for rotatably connecting the shield cover body part 2 and the apron body part 3. The rotary working machine includes first to third cover materials 21, the free end parts of which are extended in the direction of rotation of a claw, at the working rotor 5 side of the shield cover body part 2, where a space between a claw rotation space and the shield cover body part 2 is gradually enlarged rearward to the connection part 31, and the position of the connection part 31 is defined higher than a maximum point of the rotation space. The first to third cover materials 21 are gradually downward extended from a joint position of the shield cover body part 2 joined with the working rotor 5 side, towards the tip end side of the free end, with the joint position defined as a maximum position.COPYRIGHT: (C)2016,JPO&INPIT【課題】エプロン部材に付着した土砂をより確実にふるい落とすことが可能なロータリ作業機を提供すること。【解決手段】ロータリ作業機10は、作業ロータ5と、作業ロータ5の上方を覆うシールドカバー本体部2と、シールドカバー本体部2の後側方向位置に配置されるエプロン本体部3と、シールドカバー本体部2とエプロン本体部3とを回転可能に接続する接続部31と、を有し、シールドカバー本体部2の作業ロータ5側には、自由端部が爪の回転の方向へ延びる第1~第3カバー材21を備え、爪の回転空間とシールドカバー本体部2との間の空間を接続部31に至るまで後方側に向けて次第に大きく設け、接続部31の位置を回転空間の最高点よりも高くし、第1~第3カバー材21は、シールドカバー本体部2の作業ロータ5側に接合される接合位置を最高位置とし、当該接合位置から自由端部の先端側に向けて、徐々に下方向に向けて延びている。【選択図】図4
