PROBLEM TO BE SOLVED: To solve a problem in which when mud is deposited on the inside surface of a side cover formed at the right and left both sides of a rotary head cover covering the peripheral surface of a tilling claw rotating part, and thereby a moving resistance of listed soil is increased and a listing performance is decreased, and the side cover gets heavy and the opening turning operation becomes difficult, and to provide a lining sheet inside the side cover so that the tillage soil is hard to be deposited so as to carry out listing operation smoothly, thereby facilitating the opening/closing and operation of the side cover.SOLUTION: A structure of a rotary cover of a tiller is characterized by providing a lining sheet 8 formed substantially in a fan shape in one piece by forming: a lining part 6 for covering it along the inside surface of a side cover 5 by a sheet material such as a rubber material or a synthetic resin material and a connecting corrugation 7 expanded and connected from the front and rear parts to the side of a rotary head cover 3.COPYRIGHT: (C)2014,JPO&INPIT【課題】耕耘爪回転部の上周面を覆うロータリ上カバーの左右両側部に形成のサイドカバーの内側面に泥土が付着すると、畝立土壌の移動抵抗が大きくなって、畝立性能を低下し、サイドカバーが重くなって開き回動操作し難い状態となる。そこで、このサイドカバーの内側に内張シートを設けて、耕耘土壌が付着し難い形態として、畝立作用を円滑に行わせ、サイドカバーの開閉作動、操作を行い易くするものである。【解決手段】ゴム材、乃至合成樹脂材の如きシート材によって、前記サイドカバー5の内側面に沿って覆う内張部6と、この前後部からロータリ上カバー3側へ拡張形成して連結する連結ひだ部7とを形成して、一枚状で略扇形状形態に形成の内張シート8を設けたことを特徴とする耕耘機のロータリカバーの構成とする。【選択図】図1
