Rack construction

摘要

A cargo rack includes a frame having a front, a rear, and upper and lower end portions. The lower end portion has a base with a floor providing a load holding position. A tank module that is supported with the frame during use, the lower end portion of the tank module resting upon the load holding position of the base. The frame includes a plurality of side walls that attach to and extend upwardly from the base frame. Each side wall has a pair of corner columns, a central plate, and a plurality of diagonal members, each diagonal member connected to a corner column and a central plate. The frame can include at least one horizontally extending beam connecting between each pair of corner columns. The diagonal members include an upper pair that can form an obtuse angle and a lower pair that can form an acute angle.

主权项

1. A cargo rack and fluid holding tank apparatus, comprising:
a) a frame having upper and lower end portions; b) the lower end portion of the frame having a base with a floor providing a load holding position; c) a tank module that is supported with the frame during use, said tank module having four tank upper corners; d) the frame including a plurality of side walls that attach to and extend upwardly from the base, the frame having four corners with a corner column at each corner; e) at least one horizontally extending beam connecting between each pair of corner columns; f) each side wall comprising a pair of said columns, a central plate, and a plurality of diagonal members, each connected to a corner column and a central plate; g) wherein the diagonal members include an upper pair and a lower pair, the upper pair forming a first angle and the lower pair forming a second angle that is not equal to the first angle; h) a plurality of tank corner fittings, each said fitting removably attached to a said tank upper corner; and l) a plurality of tension members that connect between the frame and the tank corner fittings, wherein a pair of said tension members are attached to each fitting.