Fastener installation apparatus

Details Fastener installation apparatus Fastener installation apparatus

1986-11-24

1988-02-16

Moon, Charlie T.

Metal working

Means to assemble or disassemble

Means to drive self-piercing work part

2924352, 292835, 29512, 411179, 411283, B23P 1900

Patent

active

047246103

ABSTRACT:
To attach a nut to a plate-shaped workpiece, especially to a metal sheet, in such a way that it has self-locking properties without additional aids or parts, the force fastening the nut and acting on a free thrust surface of the nut is divided into at least two effective components generating a shearing stress in the nut material, transverse deformation of a part of the nut facing away from the workpiece being produced, and the thread diameter in the thread region deformed for self-locking purposes being reduced, while at the same time the thread pitches are inclined towards the center axis. A nut which can be used either as a locking nut or as a non-locking nut is characterized by a force-deflecting design of the thrust surface.

REFERENCES:
patent: 1083217 (1913-12-01), McClellan
patent: 2776692 (1957-01-01), Granberry
patent: 2799188 (1957-07-01), Newcomb
patent: 3441073 (1969-04-01), Johnson
patent: 3734156 (1973-05-01), Beard
patent: 4574473 (1986-03-01), Sawdon

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