An elongate, box-like collapsible cargo container with rectangular top, bottom and end walls and sectional side walls, each wall having inside and outside surfaces on spaced inside and outside planes;
- said top and bottom walls having outer rectangular load-supporting frames including laterally extending spreaders and longitudinally extending side beams and inner panel structures closing those frames;
- said sectional side walls including top and bottom longitudinally extending vertical rails integrally joined with their related beams of the top and bottom walls and establishing straight, flat, downwardly and upwardly disposed edges and elongate rectangular normally vertical upper and lower panels with straight, flat upper and lower edges normally establishing flat bearing engagement with their opposing edges of the side wall structures, normally vertical load supporting sectional columns at the ends of the side walls having top and bottom sections fixed to the ends of their related rails and to the beams and spreaders of their related top and bottom wall frames and intermediate upper and lower sections fixed to their related ends of their related sections;
- the adjacent sections of the columns have flat normally opposing ends;
- a first longitudinal hinge with its axis substantially coincidental with the normal outside planes of the panels and the plane of the opposing edges thereof and fixed thereto to extend longitudinally of the panel and between their related column sections, second hinges extending longitudinally of and connecting the rails with their related panels on axes substantially coincidental with the inside planes of the panels and the planes of the opposing edges of the panels and the rails and extending between the column sections related thereto;
- said end walls have unitary rectangular outer frames with top, bottom and side members and inner panel closures, the outer frames normally occur within the inside ends of the top, bottom and side walls with their outside planes substantially coincidental with the end planes thereof, elongate lateral hinges with axes substantially coincidental with the inside planes of the end walls and the bottom wall and securing the end walls to their related spreaders of the frame of the bottom wall, the top and side members of the end wall frames have normally longitudinally outwardly opening channels at and coextensive with their outermost edges, the column sections at the ends of the side walls and the spreaders at the ends of the top wall have elongate longitudinally inwardly projecting flanges on planes inward of the inside planes of the top and side walls and normally slidably frictionally engaged in and establishing stopped engagement at the bottoms of the channels of their related end frame members, said channels reinforce their related flange sections and bridge between and releasably lock and hold the flanges of the top, bottom, upper and lower column sections in fixed vertical alignment with each other, and lock means engageable with and between related channels and flanges to normally releasably retain the flanges in said channels;
- the end walls are pivotally movable longitudinally inwardly and downwardly to a horizontal collapsed position atop the bottom wall between the lower rails of the side walls, the panels of the side walls are pivotally movable laterally inwardly and downwardly to horizontal collapsed positions atop the end walls and with the top rails supporting the top wall in a down position thereabove.