US Patent 7945995 Metal living hinge

A one-piece hinge mechanism includes a first member having a plurality of fingers, the fingers extending toward a second member, the second member having a plurality of fingers extending toward the first member, the fingers of the first member and the fingers of the second member engaging opposite sides of a web extending between the first member and the second member, the web being torsionally loaded when one of the first member is pivoted relative to the second member.