Blind rivet nut
US7223056B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2005 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Jul 18, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B33/002
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A blind rivet nut has a head configured as an annular flange and a shank comprising a head end, a foot end and a cylindrical bore closed at the foot end of the shank and extending from the head end to the foot end in lengthwise direction, and a second bore segment near the head end whose diameter is greater than the diameter of the first bore segment. The wall surrounding the second bore segment forms a plastically deformable region of the shank, and has an outer surface with the shape of a regular polygonal, in particular hexagonal, prism. To achieve a uniform and tightly sealing contact of the flange with the part accommodating the blind rivet nut, the wall thickness of the deformable region in the thinnest places is 4% to 6% of the least outside diameter of the deformable region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.