Gasket with compressible sealing section and hard pressure affecting section

摘要

A gasket of the invention is formed of a gasket member extending substantially throughout an entire area to be sealed. The gasket member includes a base metal plate (A10) and at least one sealing member (A11) disposed on at least one of surfaces of the base metal plate (A11). A sealing section (A11a) and a pressure affecting portion (A11b) are formed in the sealing member (A11). The sealing section (A11a) has a compressibility, while the pressure affecting portion (A11b) has a height and compressibility less than those of the sealing section (A11a). When the gasket is tightened, the sealing section (A11a) is compressed to securely seal around a hole (H) to be sealed. The pressure affecting portion (A11) having less compressibility is formed near bolt holes (Hb), so that the gasket can be tightened easily without gradually decreasing its tightening pressure.