PROBLEM TO BE SOLVED: To provide a vegetation implement enabled to avoid wear reduction on a support base side and the strength degradation of a hinging shaft by performing the whirl stop of a hinging spindle of a support base at the hinging part of a link mechanism.SOLUTION: A support base is equipped with a hinging spindle 43 for supporting a link mechanism vertically swingably on a transverse axle, and the hinging spindle 43 have one end side insertable and extractable with respect to the support base, and is equipped with a whirl stop mechanism 44 on the end part opposed to the end part of the withdrawal side. The while stop mechanism 44 is equipped with a retaining projection piece 45 fixed on the hinging spindle 43, and the retaining projection piece 45 is connected to and fixed on the support base.COPYRIGHT: (C)2016,JPO&INPIT【課題】リンク機構の枢支箇所で支持台に対する枢支軸の回り止めを行って、支持台側の摩耗軽減、及び枢支軸の強度低下をも避けられるようにする。【解決手段】支持台に、リンク機構を左右方向に沿う横軸心回りで上下揺動可能に支持する枢支軸43が備えられ、枢支軸43は支持台に対して一端側を挿抜可能に構成され、かつ、挿抜可能な側の端部とは反対側の端部に回り止め機構44を備え、回り止め機構44は、枢支軸43に固定された係止用突片45を備え、その係止用突片45が支持台に連結固定されるように構成されている。【選択図】図4
