Importance

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Abstract

The hinge system has a hinge pin having a plurality of cylinders. Each of the cylinders has at least one section having a predetermined diameter, a first cylinder of the plurality of cylinders having a first diameter with every succeeding cylinder having one of a diameter equal to or less than a diameter of a preceding cylinder. The cylinders are arranged end-to-end on a common axis. A first leaf of the hinge systems includes an attachment portion and at least one elongated knuckle portion located on one edge of the attachment portion. The knuckle portion of the first leaf is axially continuous and has an axial extending bore having at least one section having a predetermined diameter. A second leaf of the hinge system includes an attachment portion and at least one knuckle portion along one edge of the attachment portion. The knuckle portion of the second leaf has an axially extending bore, having at least one section having a predetermined diameter, coaxial with the bore of the knuckle portion of the first leaf. The bores of the knuckle portions of the first and second leaves define an axially extending passage having different diameters that correspond to the diameters of the cylinders of the hinge pin. The hinge pin extends through the passage defined by the knuckle portions of the first and second leaves to provide a pivotal connection between the first and second leaves.

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First Claim