The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2013
Filed:
Aug. 12, 2009
Andreas Trojer, Vienna, AT;
David Krampl, Vienna, AT;
Michael Matheisl, Vösendorf, AT;
Richard Schütz, Vienna, AT;
Thomas Novacek, Schwechat, AT;
Markus Israel, Dresden, DE;
Reinhard Mauermann, Dresden, DE;
Andreas Trojer, Vienna, AT;
David Krampl, Vienna, AT;
Michael Matheisl, Vösendorf, AT;
Richard Schütz, Vienna, AT;
Thomas Novacek, Schwechat, AT;
Markus Israel, Dresden, DE;
Reinhard Mauermann, Dresden, DE;
Inventio AG, Hergiswil, CH;
Abstract
A method of producing a load-bearing steel construction connection, wherein a clinch connection () connecting a first metal workpiece () with a second metal workpiece () is formed by local deformation by means of a die tool () and a counter-tool (). In that case initially the first metal workpiece () and the second metal workpiece () are placed one on the other on a processing surface of the counter-tool and aligned. The die of the die tool is then advanced and sunk into the two metal workpieces () placed one on the other until the clinch connection () has been formed by plastic deformation. The first metal workpiece () has a first workpiece thickness (t) and the second metal workpiece () has a second workpiece thickness (t), which together give a total workpiece thickness (tt) which is thicker than 8 millimeters. The die is designed to be rotationally symmetrical with respect to its rotational axis () and has a conically shaped transition region () narrowing at an angle (W, W, W) in the direction of sinking-in of the die.