Laterally adjustable fastening assembly
AssigneeIllinois Tool Works Inc.
InventorJohn F. Nelson
Life of this patent
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Abstract
A fastening system including a two-part laterally adjustable fastener comprised of an apertured base and a headed elongated member. The head of the member is captivated in a recess in the base as the base is welded to an article. Complementary surface formations are formed on the base and the article to facilitate positioning of the base on the article during a welding operation.
Claims13
A fastener in combination with a molded workpiece, said fastener comprising a base having a center portion with a centrally disposed aperture and having a peripherally extending weld surface of a material that can be fuzed to said molded workpiece, a fastening element having a head and a shank for securement to a second workpiece, said center portion of said base having a recess facing in the direction of said weld surface, said head having a cross dimension larger than the diameter of said aperture to cause said head to be axially trapped in said recess behind said aperture and said shank extending through said aperture, locating means integrally formed on said molded workpiece for retaining said base at a predetermined location of said molded workpiece as said base is friction welded thereon, and complementary locating means integrally formed on said weld surface interfitting with said locating means for guiding said base to spin in a predetermined circular patch during a friction welding operation.
A fastener in combination with a molded workpiece, said fastener comprising a generally annular base having a centrally disposed cylindrical portion, and annular weld surface on a flange extending laterally outwardly from an end of said cylindrical portion, an apertured inwardly directed rim formed at the other end of said cylindrical portion, an elongated fastening element having a rounded head and shank, said head being radially larger than said aperture in said rim and being radially smaller than said cylindrical portion, and at least one annular indentation formed in said weld surface, and said molded workpiece having locating means formed on its surface for interfitting with said at least one annular indentation for guiding said base to spin in a predetermined circular path during a friction welding operation.
Dependencies are inferred from the claim text.