Clinch element and method and apparatus for attaching a clinch element to a panel
US8186920B2 · kind B2 · utility
2Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2008 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Mar 30, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53996
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.