Patent ID: 7866929
Filing Date: 2011-01-11
Classification: B23P,F16B

Abstract:
1. A component assembly comprising a fastener element in combination with a sheet metal panel having a thickness, said fastener element comprising a body part having first and second axial ends, and between said ends a conical region with an at least substantially smooth conical panel engaging surface, there being a free end face adjacent said first axial end said conical region having a larger diameter end adjacent said first axial end and a smaller diameter end adjacent said second axial end and said free end face being provided at said larger diameter end and dimensioned such that it does not form a ring flange at said larger diameter end, said fastener element further comprising a hollow cylindrical river section provided adjacent said smaller diameter end and having a cylindrical outer surface and an internal cylindrical bore with an internal diameter, said fastener element further comprising a threaded shaft protruding from said first axial end in a direction away from said cylindrical rivet section, said sheet metal panel having a conical boss with a conical recess having an internal conical surface contacting said conical surface of said fastener element at least substantially over a full area of said conical surface, said conical region having an axial length corresponding to at least approximately twice said sheet metal thickness and said conical boss having an aperture at a smaller diameter end of said conical boss, said aperture having a rim and said rim being received in a ring recess formed in said cylindrical rivet section by radially outward deformation of said cylindrical rivet section.