Self-penetrating fastening rivet
AssigneeAudi AG
InventorsSumanjit Singh, Stuart Edmond Blacket, Trevor B. Jones, Howard J. Litherland
Life of this patent
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Abstract
A rivet capable of self-piercing at least one sheet of material and becoming embedded in one of such sheets, generally consisting of a head section and a shank section formed integrally with the head section, wherein the head section includes an upwardly and outwardly curved side wall surface extending from the shank section to an upper portion of the head section, and the shank section includes a recess in a lower end thereof, with the lower end of the shank section having a peripheral cutting edge sufficient to penetrate such material.
Claims36
A rivet capable of self-piercing a first sheet of material overlying a second sheet of material and becoming embedded in said second sheet comprising:
- a head section;
- and
- a shank section formed integrally with said head section;
- wherein said head section includes an upwardly and outwardly curved side wall surface extending from said shank section to an upper portion of said head section, and said shank section includes a recess in a lower end thereof, said lower end of said shank section having a peripheral cutting edge sufficient to penetrate said first sheet of material.
A rivet according to 1 wherein said shank section includes a cylindrical exterior surface and said recess includes a conical surface cooperating with said cylindrical surface to provide a circular cutting edge.
Dependencies are inferred from the claim text.