Method for installing a self-piercing and self-clinching fastener
US10697484B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2018 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Jul 22, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B35/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method of permanently attaching a fastener to a plastically deformable panel includes placing a fastener shearing edge in contact with a first surface of a panel and a die assembly in contact with an opposite second surface of the panel, and penetrating the fastener shearing edge through the panel to create a hole. The fastener shearing edge is driven into a swage formed as a recess in an end face of the die assembly to deform the fastener shearing edge outwards along the swage and into contact with the second surface of the panel. A bent portion of the panel is trapped between the deformed fastener shearing edge abutting the second surface of the panel and a tapered flange formed on an outer surface of the fastener that abuts the first surface of the panel. A die assembly and driving mechanism for attaching the fastener is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.