| 摘要 |
PROBLEM TO BE SOLVED: To provide a curtain wall with an embedded fastener capable of being easily and inexpensively manufactured. SOLUTION: The embedded fastener 11 for being embedded in a concrete floor section 5, and a positioning fastener 12 are provided as fasteners for the mounting of a mullion 4. The positioning fastener 12 is placed on the horizontal plate part 11a of the embedded fastener 11, and mounted by being fastened with a bolt 14 and a nut 20 in such a manner as to enable positioning in an entrance/exist direction and a horizontal direction. The embedded fastener 11, which is composed of an extruded shape made of an aluminum alloy, has a bolt mounting groove 11b with a top surface opening for housing a head 14a of the bolt 14. Protrusions 11c for preventing the coming-off of the head 14a of the bolt 14 are formed in the top surface opening of the groove 11b in such a shape as to mutually protrude to the other side. The protrusion 11c has a cut-off part for housing the head of the bolt in the groove. COPYRIGHT: (C)2007,JPO&INPIT
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