| 摘要 |
PROBLEM TO BE SOLVED: To securely fix a bar material against vertical vibrations, by providing a fixing piece fixing a bar material on the upper part of a base plate and also providing a notch and a folded plate to fix the fixing part of other materials between the upper end and the lower end of the base plate. SOLUTION: When a hanging metal fitting tool 1 is fixed to a W-bar material 21, the folded plate 6 of the metal fitting tool 1 is pressed on the bottom face of the bar material 21 to bend it and in this state, while the metal fitting tool is rotated to cross at right angles against the longitudinal direction of the bar material 21, a notch 5 is fixed to the lower part of the hook 24 of the bar material 21. And in this state, the pressing force on the metal fitting tool 1 is released and the bend of the folded plate 6 is restored to the original state and the metal fitting tool is fixed. After the metal fitting tool 1 has been fixed to the bar material, the position between both fixing pieces 3, 4 of the metal fitting tool 1 has been put in the substrate bar material 11. Thereafter, claw pieces 3a, 4a are folded to the mutually facing direction so as to fix in the bar material 11. Since the metal fitting tool 1 is firmly fixed to the bar material 21, there is no fear that the fixing part of the metal fitting tool and the bar material clatters owing to the vertical action of the ceiling board 30 resulting from wind pressure. |
