PROBLEM TO BE SOLVED: To provide an agricultural implement having a connection member for connecting two or more members in which the connection of the members hardly loosens, and the attachment or the replacement of the members can be conducted easily.SOLUTION: An agricultural implement includes a first member 100, a second member 104, and a connection member. The first member 100 and the second member 104 are connected by the connection member. The connection member includes a bolt 106, a first washer 110, and a nut 108. The first member 100, the second member 104, the first washer 110, and the nut 108 are fitted to the bolt 106 in this order. The outer diameter of the first washer 110 is larger than the outer diameter of the nut 108, and the surface hardness of the first washer 110 is greater than the surface hardness of the second member 104.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】2つ以上の部材を接続させる接続部材を有する農作業機であって、部材の接続が緩みにくい農作業機を提供する。また、部材同士の取り付けおよび交換が容易な農作業機を提供する。【解決手段】農作業機であって、第1の部材100と、第2の部材104と、接続部材と、を有し、第1の部材100と、第2の部材104が、接続部材によって接続され、接続部材は、ボルト106と、第1の座金110と、ナット108とを含み、ボルト106に対して、第1の部材100、第2の部材104、第1の座金110、ナット108、の順に挿嵌され、第1の座金110の外径が、ナット108の外径よりも大きく、第1の座金110の表面硬度が、第2の部材104の表面硬度よりも高いことを特徴とする農作業機。【選択図】図2
