Self plugging blind rivet
US5054977A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1990 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Sep 18, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B19/1054
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A structural splitting self plugging pull mandrel blind rivet includes a tubular rivet body and a T-mandrel disposed therein. A locking plug is provided on the T-mandrel and includes a locking section having a plurality of locking rings and a shoulder including a secondary locking mechanism. The secondary locking mechanism preferably includes a peripheral groove in the shoulder with a peripheral lip protruding above the shoulder at each longitudinal side of the groove. The peripheral lip adjacent the mandrel head protrudes further than the peripheral lip adjacent the locking section, with the secondary locking mechanism forming a fishhook profile. The peripheral lips are also bevelled toward the mandrel head and the locking rings in the locking section are circular and spaced from one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.