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US 2019/0296370 A1Published application
Gasket manufacturing method
AssigneeNok Corporation
InventorShotaro KOGA
Life of this patent
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Abstract
A gasket manufacturing method is provided. The gasket has a base material with a bead and an elastomeric gasket body disposed in a top portion of the bead. The method includes sequentially forming the bead on one part of a plane of the base material and applying a molding material of the gasket body to the top of the bead. When forming the bead on the one part of the plane, a protrusion is formed in each end in the width direction in the top of the bead. The protrusions are utilized as a coating width defining means of the molding material when applying the molding material to the top of the bead.
Claims2
A gasket manufacturing method,
- the gasket comprising a base material provided with a bead portion on one part of a plane and a gasket body formed of a rubber-like elastic body disposed in a top portion of the bead portion,
- the method comprising:
- sequentially performing
- a process of forming the bead portion on the one part of the plane of the base material, and
- a process of applying a molding material of the gasket body to the top portion of the bead portion, wherein
- when forming the bead portion on the one part of the plane of the base material, a protrusion portion is formed in each end portion in a width direction in the top portion of the bead portion, and
- the protrusion portions are utilized as a coating width defining means of the molding material when applying the molding material to the top portion of the bead portion.
4 more elements
Dependencies are inferred from the claim text.