Problem to be solved: to provide a compact and simple stand prevention device for reducing the burden of workers. Also, there is no need to replace the member in accordance with the stem diameter of the standing tree, and a cutting tool can be easily installed even in the case of a large-diameter tree.The tree cutting device 100 includes a clutter 1 inserted into the cutting edge of a tree, a movable part 2 for allowing the horseradish 1 to be operated back and forth, and a fixing member 3 for fixing the tree cutting device 100 to the tree T, and the fixing member 3 is hung around the stem of the tree to fix the logging device 100 Set.Diagram【課題】作業者の負担を軽減する小型かつ簡易な立木伐倒器具を提供する。また、立木の幹径に合わせた部材交換の必要もなく、大径木であっても容易に伐倒できる立木伐倒器具を提供する。【解決手段】立木伐倒器具１００は、樹木の切口に挿し込むクサビ１と、クサビ１を前後動作可能とする可動部２と、前記樹木Ｔに立木伐倒器具１００を固定するための固定部材３とを備え、固定部材３は樹木の幹の周りに掛け回して立木伐倒器具１００を固定する。【選択図】図１
