F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 37/00 (2006.01) B23P 19/06 (2006.01) F16B 37/06 (2006.01)
Patent
CA 2183298
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 hasa 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 aresubjected to changing loads in operation, and has a high resistance to twist-out and push-out.
Gowling Lafleur Henderson Llp
Profil Verbindungstechnik Gmbh & Co. Kg
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