Clinch element and method and apparatus for attaching a clinch element to a panel
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United States of America Patent
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May 29, 2012
Grant Date -
Jun 26, 2008
app pub date -
Mar 4, 2008
filing date -
Jul 19, 2001
priority date (Note) -
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Abstract
A clinch element including a body portion having an annular lip portion projecting from an end face of the body portion including an arcuate free end and a frustoconical outer surface. One embodiment includes an annular lip projecting from both end faces of the body portion. A method of attaching the clinch element to one or two panels which includes driving the free end of the lip portion against an outwardly inclined frustoconical chamfered face of a die cavity, deforming the annular lip over the panel and a die member having a projecting piloting point and an annular die cavity surrounding the piloting point.
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