Patent ID: 7555815

Claim:
A door hinge arrangement for a door comprising: a hinge bearing, a hinge pin adapted to be received in said hinge bearing and being rotatable in said hinge bearing about a vertical axis of said hinge pin, said hinge pin having a protruding cam portion extending perpendicular to said axis and a cylindrical rod portion extending along said axis, said hinge bearing having a recess formed in a side wall to receive a length of said cam portion when said hinge pin is in a first angular orientation relative to said hinge bearing corresponding to a closed position and having a slotted opening for receiving said cylindrical rod portion, said slotted opening being defined by a first semicircular end having a center in a first axial position and a radius substantially equal to a radius of said rod portion and a second semicircular end having a center in a second axial position and a radius substantially equal to said radius of said rod portion, a distance between said two axial positions corresponding to said received length of said cam portion, wherein, when said hinge pin is rotated relative to said hinge bearing to a second angular orientation, said cam acts against said recess to translate said axis of said pin from the first axial position to the second axial position, such that said hinge pin will first be translated substantially laterally before said hinge pin is further rotated about said second axial position.