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:
Mar. 18, 2008
Filed:
Dec. 13, 2004
Wilfried Bien, Seevetal-Emmelndorf, DE;
Michael Halves, Hamburg, DE;
Thomas Hülsberg, Buchholz, DE;
Uwe Klüssmann, Bispingen, DE;
Bernhard Müller, Stade, DE;
Holger Nuhn, Schneverdingen, DE;
Ralf Pünjer, Seevetal/Fleestedt, DE;
Olav Reinhardt, Hamburg, DE;
Dirk Riewert, Hamburg, DE;
Alfred Riggers, Freetz-Lengenbostel, DE;
Thorsten Sterna, Moisburg, DE;
Wilfried Bien, Seevetal-Emmelndorf, DE;
Michael Halves, Hamburg, DE;
Thomas Hülsberg, Buchholz, DE;
Uwe Klüssmann, Bispingen, DE;
Bernhard Müller, Stade, DE;
Holger Nuhn, Schneverdingen, DE;
Ralf Pünjer, Seevetal/Fleestedt, DE;
Olav Reinhardt, Hamburg, DE;
Dirk Riewert, Hamburg, DE;
Alfred Riggers, Freetz-Lengenbostel, DE;
Thorsten Sterna, Moisburg, DE;
Daimler AG, Stuttgart, DE;
Abstract
The invention concerns a method and apparatus for production of a hollow section () in which a coiled pre-shape of the hollow section () is deep drawn from a sheet part, which is pre-bent after a trimming process and coiled into the final shape of hollow section (). The edges () of hollow section () lying in the peripheral direction are then joined together in the contact region. In order to improve the joining capability of hollow section () to other components in simple fashion, it is proposed that before the coiling process at least one flat site () for joining to another component be embossed before the coiling process in a pre-bent region of the hollow section ().