Nosepiece for installation of blind tubular rivets

Details Nosepiece for installation of blind tubular rivets Nosepiece for installation of blind tubular rivets

1991-10-04

1992-12-15

Yost, Frank T.

Elongated-member-driving apparatus

With means to head member

Heading tool extends within hollow portion of member

227 62, 29243521, 29243522, 298125, 723916, B21J 1534

Patent

active

051709236

ABSTRACT:
A nosepiece assembly for a blind pull-through riveting tool has long nosepiece jaws (11a, 11a) for access into deep, narrow cavities. The inside of the nosepiece assembly is provided with a device for locking the jaws together at least when a rivet is being installed. The locking device includes a frusto-conical locking face (35) on the front end of a tube (34) fixed to the tool barrel (18), co-operating with two half frusto-conical faces on the inside of the jaws. The locking faces are normally urged out of engagement by the spring (20) and are urged into locking engagement by the rearwards axial force exerted on the jaw anvil (25) by the head (33) of the rivet being installed. In a modification, the spring (20) normally urges the locking faces (35, 36) into engagement, and they are urged out of engagement by the next rivet being fed forwardly through the anvil parts (13, 13).

REFERENCES:
patent: 2340066 (1944-01-01), Lee
patent: 3005566 (1961-10-01), Neighorn et al.
patent: 4220033 (1980-09-01), Powderley

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