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.:

US 7234336 B1

Expired

Date of Patent:

Jun. 26, 2007

Filed:

Mar. 14, 2003

Method and embossing die for producing a body structural part from a vault-structured sheet metal

Applicants:

Guenter Braun, Fellbach, DE;

Juergen Ehrenpfort, Rottenburg, DE;

Daniela Frank, Sindelfingen, DE;

Martin Gruenbaum, Sindelfingen, DE;

Bernd Heim, Holzgerlingen, DE;

Dieter Lange, Magstadt, DE;

Michael Schwabe, Leonberg, DE;

Inventors:

Guenter Braun, Fellbach, DE;

Juergen Ehrenpfort, Rottenburg, DE;

Daniela Frank, Sindelfingen, DE;

Martin Gruenbaum, Sindelfingen, DE;

Bernd Heim, Holzgerlingen, DE;

Dieter Lange, Magstadt, DE;

Michael Schwabe, Leonberg, DE;

Assignee:

DaimlerChrysler AG, Stuttgart, DE;

Attorney:

Crowell & Moring LLP

Primary Examiner:

Derris H Banks

Assistant Examiner:

Debra M Wolfe

Int. Cl.

CPC ...

B21D 13/10 (2006.01);

U.S. Cl.

CPC ...

Abstract

A method and a tool are provided for producing structural parts from sheet metal which have a vault-structured stiffening zone and adjacent, flat connection zones. The starting point for producing these structural parts is vault-structured blanks which are smoothed in the region of the connection zones in the course of the forming, whereas the vault structure is retained unchanged in the region of the stiffening zone. These structural parts are produced by an embossing tool which has a die and a two-piece punch including of a fixing punch and a forming punch. In the process, the blank is first of all fixed relative to the fixing punch in the region of the vault-structured stiffening zone by a fixing element which is in a leading position with respect to the die. The connection zones are then shaped between the punch and the forming punch.

Find Patent Forward Citations

Braun, Guenter. (2007). Method and embossing die for producing a body structural part from a vault-structured sheet metal (U.S. Patent No. 7234336). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7234336

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