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. 07, 2025
Filed:
Feb. 01, 2023
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Thomas Riedisser, Sigmarszell, DE;
Ulrich Doerr, Constance, DE;
Peter Ziemer, Bad Woerishofen, DE;
Leschek Debernitz, Eriskirch, DE;
Christoph Margraf, Markdorf, DE;
Hagen Doepfert, Lindau, DE;
Uwe Schraff, Markdorf, DE;
Uwe Griesmeier, Markdorf, DE;
Michel Wiemer, Weingarten, DE;
Markus Strobel, Ravensburg, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
An arrangement for actuating a shift element for a bottom bracket gearbox () includes a shift ring () rotatably mounted in a housing () and assigned to a gearbox component. A shift pawl () for locking or releasing the shift ring () is assigned to the shift ring () for shifting a gear stage. A support region mechanically reinforces the housing () and is provided at least along a contact region () between an inner wall () of the housing () and an outer circumference of the shift ring (). The contact region () is defined by reaction forces () acting when the shift ring () is locked.