Method of installing plastic window in a box cover

A method of installing a flexible transparent plastic film in a box cover, said box cover including a blank made of opaque material and having a generally rectangular top panel hingedly connected to four side flap panels each provided with an inner and an outer segment hingedly attached to each other, and with said top panel having a central, generally rectangular opening therein, said blank further having tuck flaps each provided with a pair of hinged members hingedly connecting adjacent flap panels, said method comprising the steps of:

• placing the blank in its flattened condition and applying adhesive means on the inside surface of the blank adjacent the rectangular opening;
• providing the sheet of flexible transparent plastic film having a size greater than the size of said top panel and said central opening such that said flexible transparent plastic film overlaps the side flap panels and the tuck flaps of the blank;
• bonding said sheet of flexible transparent plastic film to the inner surfaces of said blank using said adhesive means;
• and
• simultaneously folding the side flaps and the tuck flaps of said blank to a generally orthagonal position relative to the plane of the top panel, said hinged members of each of said tuck flaps being folded into overlapping relationship with each other with portions of the edges of said film disposed on opposite sides of each of said pair of said overlapping hinge members.
• then, folding and securing the outer segment of each of said side flap panels into overlapping relationship with the respectively associated inner segment whereby to enclose sections of said edges of said film between said inner and outer segments,
• each pair of said overlapping tuck flap members being interposed between the inner and outer segments of at least certain ones of said side flap panels with said film edge portions sandwiched between said tuck flap members and the panel segments of said certain side flap panels whereby to securely hold said film in position over said rectangular opening.