Patent ID: 8186532

Claim:
A can lid comprising: a rivet which is formed gibbously and upwardly; an opening part demarcated by a main score on an upper surface of a can lid main body; a tab being fixed to the rivet such that one end part thereof overlaps the opening part; and a coining part which is located in the vicinity of the rivet on the upper surface and a lower surface of the can lid main body, said coining part being shaped into a ring around the rivet and being formed harder than another part of the upper surface and the lower surface of the can lid main body, wherein a rivet-slanting-inhibitor is formed on the upper surface of the can lid outside the coining part on the side of the rivet opposite the opening part and the main score, said rivet-slanting inhibitor being generally formed in the shape of a concentric arc about the rivet and the coining part, such that the slanting of the rivet is prevented.