Element, method of attaching the element to a plate-like component, component assembly and die buttons

US6276040A · kind A · utility

Assignee

• PROFIL Verbindungstechnik GmbH & Co. KG · DE

Inventor

• Rudolf Muller · Frankfurt, DE

Key dates

• Filing date: Dec 17, 1998
• Grant date: Aug 21, 2001
• Expiry date: Dec 17, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/5343
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

An element, for example an element with a hollow body or a bolt element, in particular a nut element, for attachment to a plate-like component, has a ring-shaped recess or annular groove present at an end face of the element facing the component within a raised ring-shaped contact surface. At least one undercut is preferably provided in a side wall of the recess, and also features radial recesses and noses which extend into the ring recess providing security against rotation. A cylindrical punch section or pilot concentric to the central longitudinal axis of the element projects at the said end face within the ring-shaped recess and the outer boundary wall of the cylindrical punch section preferably has ring-shaped undercut. A material supply is formed at or adjacent to the free end face of the cylindrical punch section and is displaceable at least locally by means of a die button on insertion of the element into the ring-shaped recess in order to capture or clamp material of the component which has previously been deformed by the die button into the ring-shaped recess between itself and the base surface of the ring recess. In this way an improved security against rotation, an incr…