Patent ID: 9576506
Date: 2017-02-21
CPC Classifications: G09F

Claim:
1. A structure configured to be flat in an unassembled position and to form a three-dimensional structure in an assembled position, comprising: a plurality of adjacent panels coupled together along fold lines; each panel including a foam core covered on one surface by a flexible skin, the flexible skin being continuous between the adjacent panels that are coupled together for forming a respective fold line for the adjacent panels to be brought together at a right angle to each other along the fold line; the foam core of each panel including a mitered surface along at least one edge thereof, the mitered surfaces of adjacent panels configured to form a miter joint when the panels are brought together; at least one keyhole slot formed in at least two adjacent panel cores proximate to the respective mitered surface of the panel core, each keyhole slot including a wider section and a narrow section and the keyhole slots of adjacent panels positioned on opposite sides of a formed miter joint when the at least two adjacent panels are brought together; at least one bracket having two portions forming a right angle with each other and configured to span a miter joint between adjacent panels, each bracket portion including a respective hook portion extending along an edge thereof to form opposing hook portions, the opposing hook portions configured to engage the wider sections of respective keyhole slots on opposite sides of the formed miter joint and slide into the narrow sections of the respective keyhole slots of adjacent panel cores when the bracket spans the miter joint, at least one hook portion of a bracket including a cutting edge configured for cutting into a panel core and the hook portions further configured to grip the respective panel cores in the narrow sections of the keyhole slots for holding the spanned miter joint and panels together in a three-dimensional structure.