Riveting device for metal sheets

Abstract

The invention provides a device that joins together several metal sheets in a single step. The device features a mechanism which simultaneously punctures a plurality of substrates and folds back extrusions produced when the substrates are punctured. The mechanism automatically retracts from the metal sheets once the folding of the extrusions occurs.

Description

BACKGROUND OF THE INVENTION1. Field of the InventionThis invention relates to the field of devices for joining metal objects and, more particularly, to a device used in riveting together studs and thin sheets of metal.2. Background of the InventionDevices for attaching or riveting together studs and thin sheets of metal have been available. However, they suffer from several disadvantages. To begin with, their use requires that the operation be carried out in three steps: first the studs or sheets of metal must be perforated at the junction point; second a rivet or the like must be inserted through the perforation; and third the rivet must be compressed or, at the very least, the extrusions or hanging chads resulting from the perforation of the metal sheets must be hammered down.Quite often, another device serving as an anvil must be placed on the side opposite to that where the perforating device engages the work pieces. If the workpiece is large and therefore unwieldy, positioning ...

AI Technical Summary

Benefits of technology

Another object of the invention is to provide a labor-saving metal-plate riveting device that rivets a plurality of plates. A feature of this invention is a combination of a puncturing device with a means to automatically fold back extrusions, burrs and hanging chads produced as the plates are punctured. An advantage of this invention is that it provides a riveting device that rivets a plurality of substrates such as plates in one single step.

Yet another object of the invention is to provide a riveting device that enables the joining of multiple substrates through folded extrusions and the insertion of a plurality of rivets into the substrates without recourse to any backstop or support s

Problems solved by technology

If the workpiece is large and therefore unwieldy, positioning of the workpiece on an anvil or other support structure may require several workers.

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