Patent ID: 6018934
Filing Date: 2000-02-01
Classification: B65B

Abstract:
A method for attaching a protective cover to a corner of a frame, said corner being defined by the intersection at a dihedral angle of two adjacent elongated intersecting channel members comprising two adjacent sides of said frame, said method comprising;a. placing said frame corner over a flat corner protector pre-form comprising a thin sheet of flexible material, said sheet being foldable into a plurality of flaps including:(i) a vertically elongated rectangular spine flap having a width approximately equal to the thickness of said intersecting channel members,(ii) a first generally right triangularly-shaped, lower cover flap having a vertical side coextensive with a first vertical longitudinal side edge wall of said spine flap, a base collinear and coextensive with the lower horizontal lateral base edge wall of said spine flap, and a hypotenuse which intersects the upper horizontal lateral edge wall of said spine flap,(iii) a horizontally elongated, rectangularly-shaped side cover flap depending downwardly from said base of said first, lower cover flap, said side cover flap having a height approximately equal to the thickness of said intersecting channel members of said frame,(iv) a horizontally elongated securement flap depending downwardly from said side cover flap,(v) a second, generally right triangularly-shaped, upper cover flap shaped similarly to said first,lower cover flap and joined to a second vertical longitudinal side edge wall of said spine flap in a laterally opposed location to said first lower cover flap, the hypotenuse of said second, upper cover flap being inclined to said hypotenuse of said first, lower cover flap at an angle substantially equal to said dihedral angle between said adjacent intersecting channel members of said frame,b. folding upwards from the plane of said first, lower cover flap of said corner protector preform said first side cover flap and said securement flap adjacent a side wall of said first channel member,c. folding said securement flap perpendicularly inwards from said first side cover flap to overlie an upper wall surface of said first channel member,d. folding upwards from the plane of said corner protector preform said spine flap and said second, upper cover flap adjacent a side wall of said second channel member.e. folding said second, upper cover flap perpendicularly inwards along said junction line between said second longitudinal edge wall of said spine flap and said upper cover flap to overlie said securement flap and an upper wall surface of said second channel member, andf. fastening said upper cover flap to said securement flap.