| 摘要 |
PURPOSE:To make it possible to hook and engage a cable by fixing a hook with a hams bolt insertion metal fitting before starting the operation to fix the hang bolt. CONSTITUTION:A relay metal fitting 18 comprises a metal fitting main body 30, which is treaded with an insertion metal fitting 10 and a hook laid out on the side of the main body. The hook 32 is mounted on the top of a post 30b and T-shaped integrally with the lower part of a fixing ring 22a which is penetrated into an outer periphery of a bolt 30a. The relay metal fitting 30 is screwed into and fixed with the bolt of the insertion metal fitting 16 located near the engagement position of a cable 34, which corresponds to the layout of lighting equipment or a cable layout plan, thereby determining the position of the hook 32. Then, the cable 34 is hooked with and engaged with the hook 32 repeatedly, which ends wiring work. After the work is ended, hang bolts 20 and 22 are screwed into the lower part of the relay metal fitting 18 or the lower part of the insert metal fitting 16 and then a ceiling bed is mounted. |
