Method of coupling a fastener on a metal sheet and forming a molded part
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United States of America Patent
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Oct 7, 1997
Grant Date -
N/A
app pub date -
May 24, 1995
filing date -
Feb 2, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention is a method of making a molded part having a sheet metal portion and at lease one fastener coupled to the sheet metal portion. The fastener has a body portion and an annular barrel portion which extends from the body portion. The body portion has a free open end and a bore extending therethrough in generally coaxial alignment with the opening in the barrel portion. The barrel portion free end is driven into the sheet metal to pierce the sheet metal and form a slug from the sheet metal. The barrel is also deformed radially outwardly in mechanical interlocking relation with the panel. The slug which is formed is wedged into the opening of the barrel portion to seal the barrel portion. The sheet metal and barrel portion can then be surrounded with molding material with the slug preventing the molding material from flowing into the bore.
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