| 摘要 |
PROBLEM TO BE SOLVED: To provide a hollow-portion form embedment material for a hollow slab, which has a structure enabling the easily attachment/detachment of a connecting fitting and an embedment body. SOLUTION: A bearing nut (13) for being screwed to a connecting screw (11c) is unrotatably pressed into an embedment body element (12a). Thus, the bearing nut (13) is separated from the connecting screw (11c) by rotating the embedment body (12), and the embedment body (12) can be easily separated from the hollow-portion form embedment material (10) for the hollow slab. COPYRIGHT: (C)2009,JPO&INPIT
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