Source: http://www.google.com/patents/US7596858?dq=7143430
Timestamp: 2014-10-23 16:34:30
Document Index: 409112395

Matched Legal Cases: ['Application No. 10160771', 'Application No. 10121218', 'Application No. 10111692', 'art 90', 'arts 90', 'art 92']

Patent US7596858 - Self-piercing device for setting a rivet element - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA system useful for riveting sheets of metal together. The system having a fastening element having a head on one side and a self-piercing surface on an opposite end, a die having an elastically moveable annular stop and a ring boost, and a ram assembly operably punching the piercing surface into a sheet....http://www.google.com/patents/US7596858?utm_source=gb-gplus-sharePatent US7596858 - Self-piercing device for setting a rivet elementAdvanced Patent SearchPublication numberUS7596858 B2Publication typeGrantApplication numberUS 11/431,113Publication dateOct 6, 2009Filing dateMay 9, 2006Priority dateMar 9, 2001Fee statusPaidAlso published asEP1366304A2, US7040006, US20040162151, US20060248705, USRE41258, WO2002073045A2, WO2002073045A3Publication number11431113, 431113, US 7596858 B2, US 7596858B2, US-B2-7596858, US7596858 B2, US7596858B2InventorsReinhold OpperOriginal AssigneeNewfrey LlcExport CitationBiBTeX, EndNote, RefManPatent Citations (89), Referenced by (8), Classifications (27), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetSelf-piercing device for setting a rivet elementUS 7596858 B2Abstract A system useful for riveting sheets of metal together. The system having a fastening element having a head on one side and a self-piercing surface on an opposite end, a die having an elastically moveable annular stop and a ring boost, and a ram assembly operably punching the piercing surface into a sheet. The fastening element may be a self-piercing rivet.
13. The device according to claim 12 wherein the conical shape has an angle of less than 10� as compared to a fiat surface.
CROSS-REFERENCE TO RELATED APPLICATIONS This application is a Continuation-in-Part of U.S. patent application Ser. No. 10/657,411, which is a Continuation of International Patent Application No. PCT/DE02/00764, filed Mar. 1, 2002. This application claims the benefit of and priority to German Patent Application No. 10160771.7 filed Dec. 11, 2001, German Patent Application No. 10121218.6 filed Apr. 30, 2001, and German Patent Application No. 10111692.6 filed Mar. 9, 2001. The disclosures of the above applications are incorporated herein by reference.
FIELD The present disclosure relates to a fastening element, in particular, a self-piercing rivet, and to a process and a device for setting the fastening element, including a punch die. The present disclosure also relates to a riveted connection made by the process and/or device, and to an employment of the riveted connection.
BACKGROUND Numerous types of rivets are known in the art. Blind rivets are distinguished in that the force required to set the blind rivet is not applied by force-absorbing stirrups on either side of a part to be riveted, but the head and foot of the rivet are pressed together by pulling on a mandrel passing through the interior of the blind rivet, the head being held at the part and the foot pulled toward the head by means of the mandrel.
An advantage of the blind rivet can be the access to only one side of the work is required. Various �designs� have been developed for self-drilling blind rivets, but the creation of self-piercing blind rivets has not been considered since the necessary deformability of the shank does not permit exertion of a piercing force.
SUMMARY In some embodiments, the fastening element according to the teachings, in particular, for blind riveting, has a hollow shank comprising a setting head at its free end, a deformation segment to form a closure head, and a connecting segment formed inside the shank and serving to form a tension-resistant connection with a mandrel, in particular, with the foot of a mandrel. The connecting segment comprises a punching edge extending substantially along the outermost periphery of the shank at the end of the shank opposed to the setting head.
With reference to FIGS. 21 through 24, in some embodiments, a self-piercing rivet 95 comprises an angular piercing surface 198 which may be advantageous for self-aligning and/or self-centering of rivet 95 on workpiece (posterior part 90). In some embodiments, angular piercing surface 198 may be conical in shape. In some embodiments, the angular piercing surface 198 may come to a point 199. In some embodiments, the angular piercing surface 198 has an angle 210 of less than 10�. In some embodiments, the angular piercing surface 198 has an angle 210 of less than 5�. In some embodiments, the angular piercing surface 198 has an angle 210 of about 3�. In some embodiments, the angular piercing surface 198 can fasten parts 90, 92 and the tip of the point 199 is on the same plane as the bottom most surface of part 92.
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