Patent ID: 8282537

Claim:
A fan-folding mechanism for folding four flaps of a case into a fan-fold arrangement, each of the four flaps comprising a leading corner and a trailing corner, the fan-folding mechanism comprising: four shoes, adapted to correspond to respective ones of the four flaps, each of the shoes comprising: a finger defining a contact surface; a first axis about which the shoe, including the finger, is pivotable; and a second axis about which the finger is pivotable relative to its respective shoe, the second axis being substantially perpendicular to the first axis; wherein each finger is pivotable between: a retracted position in which the contact surface of the finger is substantially parallel to the respective first axis and substantially perpendicular to the respective second axis; and an extended position in which the finger is oriented approximately 90 degrees from its orientation in the retracted position, and the contact surface of the finger is substantially perpendicular to the respective first axis and substantially parallel to the respective second axis; and trailing corner retention devices, each device configured for releasable attachment to a trailing corner of one of each of the four flaps.