Patent ID: 6135459
Filing Date: 2000-10-24
Classification: F02F,F16J

Abstract:
A metal gasket comprising:at least one bead base plate made of an elastic metal plate formed with beads along first bore holes; anda stopper plate made of a metal plate formed with second bore holes corresponding to the first bore holes and stacked on the at least one bead base plate so that said stopper plate contacts raised portions of the beads;wherein the stopper plate comprises a stopper plate body and folded portions formed integral with the stopper plate body and folded in annular shape along the first bore holes to form the second bore holes;wherein the folded portions comprise base parts formed integral with the stopper plate body and extending around the second bore holes and fold parts folded and placed over the base parts;wherein the raised portions of the beads of the at least one bead base plate are stacked on the stopper plate at positions spaced from the folded portions of the stopper plate;wherein the total thickness of the folded portion of the stopper plate is set larger than the thickness of the stopper plate body but smaller than twice the thickness of the stopper plate body;wherein the folded portions are formed by folding back a part of reduced thickness portions, the reduced thickness portions having a thickness smaller than the thickness of the stopper plate body but larger than half the thickness of the stopper body, andwherein the reduced thickness portions of the stopper plate are tapered so that their thickness decreases away from the stopper plate body.