| 主权项 |
1. An assembly adapted for use in a building superstructure and comprising:
a first connector adapted for attachment to a first hollow metal log of a said building superstructure, a hook, and a second connector adapted for attachment to a second hollow metal log of the building superstructure, wherein: the hook is made of a springy material and comprises a pair of spaced-apart, outwardly and oppositely directed horizontal flanges biased outwardly by the springy material, a vertical flange having upper and lower portions, and a contoured structure having a sloping cam surface and a top horizontal surface, the first connector comprises a pair of horizontal slots respectively adapted for preliminary engagement with the horizontal flanges and a vertical slot adapted for preliminary engagement with the upper portion of the vertical flange, the second connector comprises an opening adapted for final engagement with the contoured structure and a vertical slot adapted for final engagement with the lower portion of the vertical flange, the preliminary engagement forms a preassembly, and the final engagement forms a final assembly wherein the first connector, the hook, and the second connector are latched together, and wherein: during forming of the final assembly, the cam engages the second connector and partly withdraws one of the horizontal flanges from its engaged slot then drops the contoured structure into the opening with the top horizontal surface of the contoured structure opposed to a top edge of the opening, whereby the first and second logs of the building superstructure are interconnected and made resistant to uplift forces. |
