PROBLEM TO BE SOLVED: To provide a hook claw-type fixed blade convenient for preventing entwining of weed, vine, climbing plant, string, etc., around a shaft of a weeder simply by attaching the hook claw-type blade to an upper shaft of a rotary blade of the weeder as shown in Fig.2 and Fig.3, having excellent attaching and detaching maintainability and effective for safely preventing entwinement, thereby eliminating troubles of conventional weeder involving interruption of mowing work by stopping the operation of the machine for removing the entwined weed, etc., labor for lowering the machine to the ground for each removal work because the blade tip is out of the handling range of the worker to cause deterioration of the work efficiency and increase of the load on the worker.SOLUTION: The hook claw-type fixed blade (1) is attached to the shaft of the weeder with an attaching band (2), a bolt (3) and a nut (4) as shown in Fig.2 and Fig.3. A long object drawn in the rotating direction of the weeder blade is cut at a part moving toward the shaft because a force toward the rotary shaft is applied to the long object.COPYRIGHT: (C)2013,JPO&INPIT【課題】従来の草刈機での作業は、草刈り機の軸に巻きつく、草、かずら、つる物、ひもなどを取り除く為、機械を止めて作業を中断し、刃先まで手が届かないので、そのつど機械を下ろす手間が必要であり、効率も悪く作業者の負担であった。そこでカギ爪型の刃を草刈機の回転刃上部シャフトに図2、図3のように取り付けるだけで、からみを防止する便利な刃で脱着メンテナンス性にも優れた、なおかつ安全なからみを防止するカギ爪型の固定刃を提供する。【解決手段】カギ爪型固定刃(1)を、取り付けバンド(2)ボルト(3)ナット(4)を草刈機のシャフトに、図2、図3のように取り付ける。草刈機の刃の回転方向に引かれて来る長い物は、回転軸に向かう力が働くので、軸に向かって来る部分を切断する事を特徴とする。【選択図】図1
