Patent ID: 8721241
Filing Date: 2014-05-13
Classification: F16B

Abstract:
1. A self-tapping blind rivet comprising: a mandrel having a mandrel head and a mandrel shank extending from the mandrel head, wherein the mandrel shank has a break-neck portion, and the mandrel head has a generally spherical friction surface configured for non-cutting drilling by thermic softening of a workpiece by rotation of the mandrel, and a rivet body disposed on the mandrel, the rivet body having a rivet head and a rivet shank, wherein the rivet head includes a force application point configured for rotating the rivet body about a central axis, and the rivet shank is hollow and extends from the rivet head to an end portion opposite the rivet head, and wherein the end portion of the rivet shank is welded in a non-releasable manner to the mandrel head to transfer rotational forces from the rivet body to the mandrel between the friction surface and the break-neck portion of the mandrel shank.