Self plugging blind rivet

Details Self plugging blind rivet Self plugging blind rivet

1990-09-18

1991-10-08

Wilson, Neill R.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Having separate expander means

Frangible member

411 48, 411 69, F16B 1304, F16B 1306

Patent

active

050549774

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.

REFERENCES:
patent: 3047181 (1962-07-01), Heidenwolf
patent: 3149530 (1964-09-01), Kolec
patent: 3377907 (1968-04-01), Hurd
patent: 3515028 (1970-06-01), Patton
patent: 4211145 (1980-07-01), Dolch
patent: 4318650 (1982-03-01), LLauge
patent: 4367994 (1983-01-01), Francis et al.
patent: 4639174 (1987-01-01), Denham et al.
patent: 4897003 (1990-01-01), Bradley et al.
patent: 4897004 (1990-01-01), Norton

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