초록 ▼

A collapsible three sided truss, in which a rectangular central framework section has outboard framework sections each hinged to one side, which can be swung together to bring interfitting portions together, with locking mechanisms manually operable to connect these portions together and form a rigi

A collapsible three sided truss, in which a rectangular central framework section has outboard framework sections each hinged to one side, which can be swung together to bring interfitting portions together, with locking mechanisms manually operable to connect these portions together and form a rigid three sided truss. When released and swung out, the outboard sections form a flattened array with the central section for easy transport and handling. Slidable pins are included in the locking mechanisms, engaging aligned holes in partial sleeves on cross members of one outboard section fit to elongated member of the other outboard section. The three sided trusses can be connected end-to-end with couplings and locking pins.

대표청구항 ▼

[ What is claimed is:] [1.]1. A collapsible three sided truss comprising:a central section comprising a generally rectangular tubular framework including two side by side spaced apart parallel elongated members connected together by a series of members attached at either end to a respective one of s

[ What is claimed is:] [1.]1. A collapsible three sided truss comprising:a central section comprising a generally rectangular tubular framework including two side by side spaced apart parallel elongated members connected together by a series of members attached at either end to a respective one of said elongated members;two outboard sections, each comprising a generally rectangular tubular framework hingedly connected to a respective side of said central section to be able to be swung towards each other so that said two outboard sections and said central section form a triangular in section truss,said outboard sections also able to be swung away from each other to form with said central section a generally flat array;said outboard sections able to be connected to each other with a quick release connection, a series of portions on a side opposite said central section interfitting together when said outboard sections are swung together to form a triangular-in-section truss; and a series of locking mechanisms respectively associated with said series of interfitting portions selectively operable to connect said outboard sections together along contiguous sides thereof.