| 摘要 |
A modular stand-alone shelving system comprising left and right vertical support members, each having front and rear corner posts connected by a welded grid of horizontal and vertical rods. A plurality of shelves formed of sheet metal are disposed between the vertical support members, each shelf including hook elements formed near the corners thereof for engaging and resting on horizontal rods of the grid. A back member extends between the vertical support members and also includes hook elements formed near the corners thereof for engaging and resting on horizontal rods in the grid. Upper corners of the back member include first and second hooks disposed in planes spaced apart by the thickness of the vertical rods. When installed, the hooks rest on horizontal rods and straddle a vertical rod, preventing motion of the back member and rhombic distortion. The back member prevents rhombic distortion in the X and Z directions.
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