Patent ID: 7585265
Filing Date: 2009-09-08
Classification: B31B

Abstract:
1. A method of closing a case having four flaps to result in a fan fold configuration, each of the four flaps comprising a leading corner and a trailing corner, the method comprising: providing four shoes, each of the shoes comprising: securing the respective trailing corners of the four flaps to place the flaps in the open position in which each flap is secured and oriented perpendicular to two adjacent flaps and parallel to another of the flaps; pivoting the four shoes about their respective first axes to thereby place the four shoes in a flap folding position in which: after pivoting the four shoes about their respective first axes to thereby place the four shoes in the flap folding position, pivoting the fingers relative to their respective shoes and about respective ones of the second axes to thereby push the leading corners of the flaps; releasing the trailing corner of each of the four flaps, wherein the releasing is timed to allow the leading corner of each flap to pass the trailing corner of an adjacent one of the flaps during pivoting the fingers relative to their respective shoes and about the respective ones of the second axes; and closing each of the flaps such that the leading corner of each flap is covered by the trailing corner of the adjacent one of the flaps to result in the fan fold configuration, comprising: