Carrying case with guards

Claim 1

A carrying case adaptable for carrying relatively heavy objects comprising: a unitary member of U-shaped cross section constituted by side walls and a bottom wall including a reinforcing plate; molded end shells of relatively rigid material, each having a flat panel in the shape of a rectangle with arcuate corners, each end shell having a peripheral flange extending along the periphery of the flat panel, the flange including a lesser periphery extending outwardly and substantially perpendicular to the flat panel, a curved portion where the flange reverses back upon itself, and a greater periphery spaced apart from and substantially parallel to the lesser periphery, the lesser periphery and the curved portion and the greater periphery successively constituting the flange and defining an inwardly facing channel for receiving an edge of said unitary member; overlying and underlying lid flaps each hinged below the tops of said end shells and conforming to the upper portions and respective arcuate corners of the peripheral flanges of said end shells when the case is in a closed position, said overlying flap having an aperture so as to receive therethrough a handle secured to said underlying flap so that the carrying case may conveniently be carried when in a closed position; U-shaped metal guards, each guard having a longer arm and a shorter arm so that the guard has an L-shaped cross section, said longer arm extending generally parallel to and adjacent the respective greater periphery, said shorter arm extending adjacent the respective curved portion but unattached thereto; and rivet assemblies arranged in a single respective series along each of said guards, each of said rivet assemblies extending through sequentially the longer arm of the respective guard, the greater periphery of the respective flange, an edge of the unitary member, and the lesser periphery of the respective flange.