Patents Assigned to Profil Verbindungstechnik & Co.
  • Patent number: 6257814
    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.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: July 10, 2001
    Assignee: Profil Verbindungstechnik & Co.
    Inventor: Rudolf R. M. Müller