| 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.
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