Patent ID: 7159284

Claim:
A seat belt buckle which comprises: a casing defining at least one slot engageable by an end member of a seat belt for connection therewith, a lock mechanism housed in said casing for releasably retaining said end member and a release lever fitted to said casing and movable, from a rest position, along a path lying in an actuating plane to release said lock mechanism from said end member, said release lever comprising an end projecting from said casing in said actuating plane as the release lever moves along said path, wherein a lever guard portion is fitted to said casing and has a lateral surface, an ideal extension of said lateral surface being in a direction perpendicular to said actuating plane surrounding said end of said release lever in said rest position, said lever guard portion forming part of an additional safety component, separate from said casing and fixed to the casing, said casing comprising an outer surface defined by a circular generating line, said lever guard portion comprising a curved concave surface complementary to and contacting said outer surface.