TRAILER

摘要

Improved trailers (e.g., semi-trailers) are disclosed. The trailers (100) include a floor (110) having a top surface (112) and a bottom surface (114), where the top surface is adapted to transport a payload, and an elongated shell (120) connected to the bottom surface of the floor, where the elongated shell defines a portion of a substantially closed torsion-resistant chamber of the trailer. The trailers may have a torsion resistance that is substantially higher than conventional trailers of similar size and/or load capacity. The trailers may weigh substantially less than conventional trailers of similar size and/or load capacity. The trailers may realize a bending resistance that is at least equivalent to the bending resistance of conventional trailers of similar size and/or load capacity.