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:
Sep. 29, 2026
Filed:
Dec. 13, 2024
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Alexander Thorwart, Langenargen, DE;
Bernard Hunold, Friedrichshafen, DE;
Michael Preuß, Friedrichshafen, DE;
Johannes Glückler, Friedrichshafen, DE;
Niclas Raeder, Bermatingen, DE;
ZF Friedrichshafen, Friedrichshafen, DE;
Abstract
A drive unit with a parking lock arrangement has a parking lock gear, a parking lock pawl, and a parking lock tappet. An actuation unit can move the tappet against a shifting force into a locking shift position in which the tappet enables an actuating movement of the pawl toward a release position, in which the pawl enables a rotary movement of the parking lock gear. The actuation unit is operatively connected to a shift actuator system of a manual gearbox having at least two speeds. The actuation unit is configured to transfer the tappet from the locking shift position to the releasing shift position by means of spaced-apart cams when one of the speeds is engaged. In a neutral operating state, where no speed is engaged and the power train is interrupted, the actuation unit releases the actuating movement of the tappet toward the locking shift position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile