Patent ID: 8122536

Claim:
A frame comprising: a plurality of connector assemblies; and a plurality of upright members, each of said plurality of upright members pivotally coupled to at least one of said plurality of connector assemblies; and a cross-support unit coupled between said plurality of connector assemblies, said cross-support unit movable between a folded configuration and an expanded configuration by way of said plurality of connector assemblies, said cross-support unit defining a substantially horizontal planar support structure in the expanded configuration, at least one of said plurality of connector assemblies coupled to one of said plurality of upright members is positioned along a longitudinal axis of said frame, wherein said cross-support unit further comprises a first member and a second member each having a first end, a second end, and an intermediate point therebetween, said first member pivotally coupled to said second member at said intermediate point, wherein said first member is coupled to one first connector assembly of said plurality of connector assemblies at said first end and to one second connector assembly of said plurality of connector assemblies at said second end.