Rotation restraining self-piercing rivet
US6814531B2 · kind B2 · utility
13Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Feb 13, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B19/086
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention is a self-piercing rivet wherein the hollow shell has an external axial asymmetry wherein the asymmetry is with respect to the axis of rotation of the hollow shell. Once installed in a stack of sheets, the asymmetric self-piercing rivet prevents relative sheet rotation of the sheets relative to the axis because of rotational interference caused by the external axial asymmetry of the hollow shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.