Self-attaching female fastener, die set and method of attachment
US7152297B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2004 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Nov 6, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49908
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A self-attaching fastener for thick panels having a pilot and a groove in a flange portion including an inclined outer wall and a bottom wall having an inclined portion extending to the outer face of the pilot and a concave surface in the outer face of the pilot adjacent the bottom wall. A die set for various panel thicknesses each having a projecting lip including an end face and first and second inclined faces which deform the panel against the inclined bottom wall and beneath the concave surface of the pilot. And, a method of attaching the fastener to a metal panel, wherein the die lip deforms a panel against the inclined bottom wall portion adjacent the pilot portion, inwardly into the concave surface and outwardly beneath the groove outer wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.