Method of joining two superimposed flat thin objects together us

Details Method of joining two superimposed flat thin objects together us Method of joining two superimposed flat thin objects together us

1992-05-15

1993-04-06

Echols, P. W.

Metal working

Method of mechanical manufacture

Assembling or joining

29432, 411 42, 411510, 403 2, B23P 1100

Patent

active

051991497

ABSTRACT:
A washer is positioned beneath a superimposed assembly of two or more flat thin objects (e.g. resin sheets) which is horizontally supported. A hollow joining pin is fitted about a metal pin supported vertically and coaxially with the washer. The joining pin has a head, a shank and a tapered end portion which is severable from the shank. The metal pin has a pointed end about which the tapered end portion of the joining pin is positioned. The metal pin is vertically movable with the joining pin, or independently of it. The metal pin and the joining pin are moved down to drive its pointed end and its tapered end portion, respectively, into the assembly to make a hole therein and force the shank through the hole until the shank is engaged with the washer, whereby the objects are secured together between the head of the joining pin and the washer. The metal pin is moved down through the joining pin to sever its tapered end portion from its shank. The objects, washer, and joining pin are all of the same material.

REFERENCES:
patent: 2126161 (1938-08-01), Woodward
patent: 2133916 (1938-10-01), Churchill
patent: 3238835 (1966-03-01), Rosenberg
patent: 3487745 (1970-01-01), Brunelle
patent: 3523395 (1970-08-01), Rutter et al.

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