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
1997-12-22
1999-12-21
Wilson, Neill
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...
411107, 411427, F16B 3704, F16B 3700
Patent
active
060040874
ABSTRACT:
A fastener, for example a nut element, for attachment to a plate-like component with an end face of the fastener having a recess within a raised contact surface and a plurality of projections and undercuts are provided in a sidewall of the recess. The base surface of the recess extends up to the bore of the fastener without the presence of a pilot portion and a plurality of recesses are provided in the contact surface for resisting rotation. The die button which serves for the attachment of the fastener to a plate-like component has a hole-forming punch projection which has a plurality of noses distributed around the periphery in the region of the transition to the planar surface of the die button. On attachment of the hollow element to a plate-like component in a press, the sheet metal part is perforated by a hole punch and is molded in form-locked manner by the die button, in particular by its hole-forming punch projection, into the recess of the hollow element. The connection as generated is particularly suitable for sheet metal parts which are subjected to changing loads in operation, and has a high resistance to twist-out and push-out.
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Profil-Verbindungstechnik GmbH & Co. KG
Wilson Neill
LandOfFree
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