Clinch fastener with a spiral shank
US11703076B2 · kind B2 · utility
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25References
11Claims
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Assignee
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Key dates
| Filing date | Jun 21, 2019 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Dec 7, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B5/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A press-in fastener has from top to bottom: a head, a clinch feature, and a spiral, knurled shank. The fastener can hold two parts together by first clinching with a first metal panel, and then being pressed into a hole in a second, less ductile panel having a uniform interference between the knurled fastener shank and the hole. The knurled shank has a helix configuration that allows for use in non-ductile materials and eliminates the need for tapered holes and screws for applications that do not require disassembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.