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:
Dec. 23, 2025
Filed:
Feb. 01, 2023
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Hagen Doepfert, Lindau, DE;
Peter Ziemer, Bad Woerishofen, DE;
Thomas Riedisser, Sigmarszell, DE;
Ulrich Doerr, Constance, DE;
Uwe Schraff, Markdorf, DE;
Markus Strobel, Ravensburg, DE;
Christoph Margraf, Markdorf, DE;
Uwe Griesmeier, Markdorf, DE;
Leschek Debernitz, Eriskirch, DE;
Michel Wiemer, Weingarten, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
An arrangement for actuating a shift element of a gearbox includes a rotatably mounted and preloaded shift pawl () and a shift ring () with an outer toothing () and assigned to a gearbox element. A first end () of the shift pawl () is assigned to the outer toothing () of the shift ring () so as to lock or release the shift ring () in order to shift a gear stage, and a second end () of the shift pawl () is assigned to a shift gate () of a shift drum () that actuates the shift pawl (). The shift pawl () is operatively connected to at least one double torsion spring () in order to apply a preload force.