Patent ID: 8863446

Claim:
A collapsible structure comprising: at least two finished closed panel walls of the collapsible structure that can be arranged into an expanded state and a collapsed state, each finished closed panel wall comprising: a first panel wall; a second panel wall; a top plate coupled to one end of the first panel wall and the second panel wall; a bottom plate coupled to another end of the first panel wall and the second panel wall; an upper hinge coupled to the top plate of a first finished closed panel wall and to the top plate of a second finished closed panel wall, the upper hinge comprising: a first angle bracket including a hinge hole, the first angle bracket being secured along at least one lateral axis to the top plate of the first finished closed panel wall using a plurality of coupling devices; a second angle bracket including a hinge hole, the second angle bracket being secured along at least one lateral axis to the top plate of the second finished closed panel wall using a plurality of coupling devices and a hinge hole; and a hinge pin that pivotably couples the first angle bracket and the second angle bracket that enables the first finished closed panel wall and the second finished closed panel wall to fit flush end-to-end with each other in the expanded state and to be parallel with each other in the collapsed state; and a lower hinge coupled to the bottom plate of the first finished closed panel wall and the bottom plate of the second finished closed panel wall.