Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Nut – and means to engage substructure on its opposite faces...
Patent
1995-05-11
1997-03-25
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Nut, and means to engage substructure on its opposite faces...
411179, 411501, F16B 3704, F16B 1908
Patent
active
056138156
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.
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Profil - Verbindungstechnik
Wilson Neill R.
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