Nut installation apparatus

Details Nut installation apparatus Nut installation apparatus

1980-01-11

1982-02-02

Combs, Ervin M.

Metal working

Means to assemble or disassemble

Means to drive self-piercing work part

B23P 1904, B23Q 710

Patent

active

043132618

ABSTRACT:
An explosion relief for a nut installation head or apparatus, such as used to install pierce or pierce-clinch nuts having a rectangular piercing pilot and opposed elongated flange portions on opposite sides of the pilot. The flanges are separated from the pilot portion by panel receiving grooves. The improved explosion relief comprises aligned channels extending from opposed sides of the rectangular nut plunger passage which receive the nut flanges at the passage opening. One side wall of the channel is aligned with a wall of the passage and the opposed side channel wall is off-set inwardly from the passage wall to define corners in the plunger passage which catch and rotate the elongated nut flanges in the event that a nut is fractured during installation. The elongated nut flanges are thus guided outwardly through the explosion relief channels without jamming the nut installation head.

REFERENCES:
patent: 3718965 (1973-03-01), Steward
patent: 3921276 (1975-11-01), Oaks
patent: 3926236 (1975-12-01), Pouch et al.

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