Self-drilling pull-through blind rivet and methods of and apparatus for the assembly and setting thereof
US7322783B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2002 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Oct 31, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53752
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A river body (40) is formed with cutting teeth (68) in a forward edge (66) of the rivet body. A mandrel (96) is formed at a forward end with an enlarged head (104) having a drill point (60) thereon. A plurality of the rivet bodies (40) are stacked on the mandrel (96), with the drill point (60). The rivet body (40a) is rotated and, through rotative coupling, the mandrel (96) is also rotated. The rotating drill point (60) forms pilot holes I workpieces (186) and (188), and the rotating cutting teeth (68) enlarge the pilot holes to form holes (192) and (194), respectively, for receipt of a cylindrical portion (42) of the lead rivet body (40a).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.