Patent ID: 7100972

Claim:
A trailer wall structure comprising: a horizontally extending bottom rail comprising a floor-engaging portion and a wall-engaging portion, said floor-engaging portion defined by a C-shaped profile including spaced-apart upper and lower members adapted to receive an associated horizontal trailer floor therebetween, and said wall-engaging portion defined by a U-shaped profile adapted to closely receive a vertical wall; a horizontally extending top rail spaced vertically above the horizontally extending bottom rail; a wall that extends vertically between and is connected to both the bottom rail and the top rail, wherein the wall comprises: a plurality of individual extruded vertical aluminum panels, wherein: each individual panel includes a lower end and an opposite upper end, and wherein each panel is arranged vertically and extends from its lower end that is abutted with the bottom rail to its upper end that is abutted with the top rail; said lower end of each individual panel is seated in said U-shaped profile of said wall-engaging portion of said bottom rail; each individual panel comprises spaced-apart inner and outer walls and spaced-apart first and second end walls that interconnect the inner and outer walls; each individual panel defines at least one interior space between said inner and outer walls, wherein the space extends within each panel vertically from the top rail to the bottom rail and into the U-shaped profile of the bottom rail; the panels are arranged in the wall to define a plurality of pairs of said panels, with each of said pairs comprising first and second ones of said panels, wherein the first end wall of the first panel of the pair is abutted with the second end wall of the second panel of the pair so that a vertical seam is defined where said first and second panels of each pair are abutted; for each of said pairs of panels, the first and second panels are welded to each other by a vertically extending weld located in said vertical seam; the outer walls of the panels are aligned with each other to define a smooth outer surface of said wall and the inner walls of the panels are aligned with each other to define a smooth inner surface of said wall; said bottom and top rails are welded to said wall to connect said wall to said top and bottom rails and to capture said vertical panels in said U-shaped profile of said bottom rail, wherein said bottom and top rails rigidify said wall.