PROBLEM TO BE SOLVED: To provide a structure for preventing sticking of soil simplifying the maintenance of a member for preventing sticking of soil.SOLUTION: The structure for preventing the sticking of soil is designed to prevent the sticking of soil by mounting the sheet-like member for preventing the sticking of soil on the inner surface of a rotary cover that covers a tilling part so that the inner surface of the sheet-like member for preventing the sticking of soil faces the tilling part. Accordingly, the sticking of soil to the inner surface of the rotary cover is prevented. The structure for preventing the sticking of soil is equipped with an engaging member for supporting a first end side of the member for preventing the sticking of soil, by partially or wholly inserting at least the first end side of the member for preventing the sticking of soil. The inner surface of a fitting region inserted into the engaging member in the member for preventing the sticking of soil is provided with a recessed part, which is recessed outward in the radial direction, on the basis of the axial line of the tilling part.COPYRIGHT: (C)2009,JPO&INPIT【課題】土付着防止部材のメンテナンスの簡略化を図ることができる土付着防止構造を提供する。【解決手段】本発明に係る土付着防止構造は、耕耘部を覆うロータリカバーの内表面に、シート状の土付着防止部材をその内表面が前記耕耘部と対向するように装着することで、前記ロータリカバーの前記内表面に土が付着することを防止する。該土付着防止構造は、前記土付着防止部材の少なくとも第1端辺が部分的又は全体的に差し込まれることで該土付着防止部材の第1端辺を支持する係止部材を備えている。前記土付着防止部材のうち前記係止部材に差し込まれる係入領域の内表面には、前記耕耘部の軸線を基準にして径方向外方へ凹む凹部が設けられている。【選択図】図2
