초록

The present invention provides a load-bearing structure having interlockable peripheral edges. The peripheral edges provide at least one pair of upper and lower offsets. Each offset includes a plurality of spaced apart projections.

대표청구항 ▼

[ I claim:] [1.] A load-bearing structure comprisinga body portion comprising first and second skin structures respectively comprising a first peripheral edge portion and a second peripheral edge portion, andperipheral edges providing at least one pair of upper and lower offsets, wherein an upper of

[ I claim:] [1.] A load-bearing structure comprisinga body portion comprising first and second skin structures respectively comprising a first peripheral edge portion and a second peripheral edge portion, andperipheral edges providing at least one pair of upper and lower offsets, wherein an upper offset of said at least one pair of upper and lower offsets, comprises said first peripheral edge portion and a plurality of spaced apart, depending projections uncovered by said second skin structure, and wherein a lower offset of said at least one pair of upper and lower offsets, comprises said second peripheral edge portion and a plurality of complementary upstanding projections uncovered by said first skin structure and adapted to interlock with an upper offset of a second load-bearing structure.