Clinch fastener
US11614118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2020 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Feb 25, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B37/068
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A clinch fastener that includes a plurality of ribs disposed under a head of the clinch fastener, wherein the ribs are specifically configured to displace host material more evenly than conventional clinch fasteners. To that end, in cross section, along a line, arc, or combination, going from a central axis of the clinch fastener to an outer periphery of the head of the clinch fastener, each rib preferably provides a curved surface that is formed of multiple sections, wherein different radii define at least two of the sections. The configuration of the ribs allows for a vented escape of host material beyond the rib outside diameter and provides for radially focused material displacement, thereby releasing stress within the host material and reducing warping during clinching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.