초록 ▼

In one aspect, the present invention provides a load-bearing structure with a novel interlocking edge. Also provided is a method of making a load-bearing structure having an overlapping edge, in which structural members are combined so that a stepped-down lip of one structural member covers a periph

In one aspect, the present invention provides a load-bearing structure with a novel interlocking edge. Also provided is a method of making a load-bearing structure having an overlapping edge, in which structural members are combined so that a stepped-down lip of one structural member covers a peripheral edge of another member. Also provided is a load-bearing structure having cellular structure and which is useful with or without an overlapping edge. In addition, there is provided a molding method for making cellular, load-bearing structures.

대표청구항 ▼

[ We claim:] [1.] A method of making a load-bearing structure having a cellular core, said method comprising disposing in a lower mold member a layer of reinforcing fiber and another layer of reinforcing fiber with a layer of a thermoplastic matrix resin therebetween, and then a layer of a first the

[ We claim:] [1.] A method of making a load-bearing structure having a cellular core, said method comprising disposing in a lower mold member a layer of reinforcing fiber and another layer of reinforcing fiber with a layer of a thermoplastic matrix resin therebetween, and then a layer of a first thermoplastic resin compatible with said matrix resin, thereafter combining said lower mold member with an upper mold member having wall-forming portions under suitable molding conditions for flow of said first thermoplastic resin into said wall-forming portions, and thereafter cooling and then demolding a first plurality of generally vertical walls comprising said first thermoplastic resin and integral with a first skin structure comprising said reinforcing fiber and covering a face of said generally vertical walls to define a first plurality of shaped hollows having an uncovered opposite face, said generally vertical walls being vertically tapered for assisting said demolding; additionally molding a second skin structure integral with, and covering a face of, a second plurality of generally vertical walls to form a second plurality of shaped hollows having an uncovered opposite face; and thereafter with the uncovered faces in face-to-face contact and said first plurality of shaped hollows in alignment with said second plurality of shaped hollows, joining said uncovered faces whereby a load-bearing structure is made which has a cellular core derived from the aligned shaped hollows.