Method of attaching a fastener to a plurality of panels

Details Method of attaching a fastener to a plurality of panels Method of attaching a fastener to a plurality of panels

1994-11-22

1996-06-25

Vo, Peter

Metal working

Method of mechanical manufacture

Assembling or joining

29512, 29520, 411173, 411183, B23P 1100

Patent

active

055288120

ABSTRACT:
A method of riveting a plurality of panels utilizing a fastener which may then be used to attach a further element to the panel assembly and wherein the fastener is first permanently attached to a first panel for a later attachment to a second or plurality of panels to form the fastener and panel assembly. The fastener is attached to the first panel by piercing a tubular barrel portion through the panel and affixing the first panel in an annular groove in a flange portion surrounding the barrel portion. The groove includes radial ribs preventing rotation of the fastener in the first panel and a radial rib is deformed in an outer surface of the barrel portion preventing pull-out of the fastener. The second and further panels are pre-pierced with a conical lip surrounding the panel opening and received on the barrel portion of the fastener with the conical lip facing the first panel. An annular recess is formed in the first panel which recedes the conical lip of the second panel and the free end of the barrel portion is deformed over the second panel, flattening the conical lip radially inwardly against the barrel portion, forming a secure mechanical interlock between the fastener and the panel assembly.

REFERENCES:
patent: 2593506 (1952-04-01), Wales
patent: 4430034 (1984-02-01), Fujikawa
patent: 4630362 (1986-12-01), Bauer
patent: 5365654 (1994-11-01), Moulton

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