Patent ID: 7422218

Claim:
A flat gasket, comprising at least one metal gasket sheet made of a spring steel or a metallic material with a percentage elongation after fracture corresponding to the percentage elongation after fracture of a spring steel, wherein the gasket sheet is provided with at least one edging fold, which comprises a bending region and a flange region connected in one piece to the gasket sheet via the bending region, wherein the gasket sheet has a hole and the edging fold extends at least along one section of the periphery of the hole, wherein the flat gasket has a vertically deformable bead extending around the hole, wherein the bead is formed on the same gasket sheet that is also provided with the edging fold, wherein the edging fold has a plurality of incisions, which extend from an outer edge of the flange region remote from the bending region into the flange region towards the bending region, and wherein the average length of the incision-free regions of the outer edge of the flange region between the incisions arranged consecutively in the longitudinal direction of the edging fold is greater than the average extent of the incisions in the longitudinal direction of the edging fold at the outer edge of the flange region.