COMPOSITE DUNNAGE BAR SYSTEM

摘要

A dunnage bar system 10 that includes an bar (12) with a generally rectangular cross section. In one embodiment, the bar has four external faces (14, 16, 18, 20) that are joined by arcuate corners (22). The four faces (14, 16, 18, 20) include an impact-absorbing face 14 that has two arms of a C-section (30, 32); a basal face (16) opposing the impact-absorbing face (14); and a pair of side faces (18, 20) that are oriented between the impact-absorbing and basal faces (14 and 16). Preferably, a pair of channels (36) extend at least partially along and within the bar (12). Each channel (36) has a pair of opposing internal major walls (40, 40') and opposing internal minor walls (44, 44'). In alternative embodiments, one or more spacer members (70, 70') are insertable into the channels (36) for torsional rigidity and added support. Each wall terminates in an internal corner having a radius. The invention also includes a process for making the disclosed composite bar system.