FALLING PREVENTION TOOL, TOOL BAG AND CONSTRUCTION METHOD

To provide a falling prevention tool capable of preventing a nut or a looseness prevention nut from falling in fastening work, to significantly enhance workability of the fastening work.SOLUTION: A falling prevention tool 1 has: a columnar sticking holding part 2 having a magnet 7 inside which can be stuck to an end surface 18 of a threaded part of a bolt 15 formed of a magnetic material; a locking tool 3 that can be locked to a fixing bracket 30 fixed to an inside bottom part 27 of a tool bag 22; and a wire 4 that connects the sticking holding part 2 and the locking tool 3, and can be inserted into a through hole 28 of a nut 20 or a through hole 29 of a looseness prevention nut 21, where a maximum outer diameter D1 of the sticking holding part 2 is a value at which the sticking holding part can be inserted into the through hole 28 of the nut 20 or the through hole 29 of the looseness prevention nut 21, and also a value that is smaller than a valley diameter D2 of the thread part 16.SELECTED DRAWING: Figure 1 【課題】締結作業の際にナット又はイダリングの落下を防止し、締結作業の作業性を格段に高めることが可能な落下防止具を提供すること。【解決手段】磁性体で形成されるボルト１５のネジ山部の端面１８に吸着可能な内部に磁石７を有する円柱状の吸着保持部２と、工具袋２２の内側底部２７に固定された固定金具３０に係止可能な係止具３と、吸着保持部２と係止具３とを接続し、ナット２０の貫通孔２８又はイダリング２１の貫通孔２９に挿通可能なワイヤ４と、を有し、保持吸着部２の最大外径Ｄ１は、ナット２０の貫通孔２８又はイダリング２１の貫通孔２９に挿通可能な値であり、かつ、ネジ山部１６の谷径Ｄ２よりも小さい値である落下防止具１。【選択図】図１