Abstract: A modular platform assembly includes a plurality of pivot connectors. Each pivot connector having a first connecting part that includes a first mounting member and a first engaging portion. Each pivot connector having a second connecting part that includes a second mounting member and a second engaging portion for pivoting engagement with the first engaging portion of the first connecting part. The first connecting part and the second connecting part cooperate to define a bore that extends through the first connecting part and the second connecting part of each pivot connector along a pivot axis of each pivot connector. A support rod extends through the bore of each pivot connector from the plurality of pivot connectors.

Abstract: A vertically adjustable support has a plurality of vertically stackable and unstackable platforms, adjacent ones of the platform being joined by a coupling each of which extends downwardly from a socket in an upper platform in which the coupling is accommodated and has projections for gripping a portion of the next adjacent lower platform so as to join the upper and lower platforms in such manner as to minimize the inadvertent separation or slipping of adjacent platforms relative to one another.

Abstract: A shelving construction comprises a plurality of quadrangular panels and a plurality of sets of supporting legs. At least one panel overlies two parallel, spaced apart panels. One set of legs couples the overlying panel to one of the two panels and another set of legs couples the overlying panel to the other of the two panels. The legs interlock the three panels to one another and maintain them securely in their respective positions.