Patent ID: 7111363

Claim:
A door hinge structure for a refrigerator, the door hinge structure comprising: an upper fixture unit screwed to a predetermined front upper portion of a refrigerator body, and having an upper hinge pin to be inserted in a top aperture formed at an upper surface of a refrigerator door; an upper hinge unit mounted on the upper surface of the door, and having a through opening for allowing a distal end of the upper hinge pin to be slidably inserted therethrough, the upper hinge unit being coupled with the upper fixture unit, the upper hinge unit having a torsion spring, the upper hinge unit and the upper fixture unit being vertically spaced apart from each other; a lower fixture unit screwed to a predetermined front lower portion of the body, and having a lower hinge pin to be inserted in a bottom aperture formed at a lower surface of the door; a lower hinge unit mounted on the lower surface of the door, and having a through opening for the insertion of the lower hinge pin; and a stopper member interposed between the lower fixture unit and the lower hinge unit and adapted to stop pivotal movement between a closed position and an open position of the door; wherein the upper hinge unit includes: an upper mount mounted on the upper surface of the door, and having the through-opening; a plate provided at a lower surface of the upper mount so as to surround the through-opening, the plate being insertable in an upper groove formed along an inner periphery of the top aperture; and a hollow insertion column attached to a lower surface of the plate to be vertically aligned with the through opening, into which a torsion spring is inserted.