| 摘要 |
PROBLEM TO BE SOLVED: To prevent a ceiling joist receiver A from falling from a ceiling joist receiver hange C in a ceiling structure including the hanger C suspended by holding the ceiling joist receiver A between a hanger longitudinal plate part 01 and a holding longitudinal plate part 04 raised through a bottom plate part 03.SOLUTION: A fall prevention structure is provided with a frame rod part 1 which is formed of an elastic wire, and surrounds and holds a hanger longitudinal plate part 01 and a holding longitudinal plate part 04, a lock receiving part 5 which is formed at an opening place (opening part 2) by curving the wire so that an opening is made at a part of the frame rod part, and a lock rod part 31 which is provided detachably at the lock receiving part 5. The hanger longitudinal plate part 01 and holding longitudinal plate part 04 are held by the frame rod part of fall prevention metal fittings, and a fall prevention tool D is mounted at a predetermined place. |
