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:
Nov. 12, 2013
Filed:
Oct. 20, 2011
Bernd Austermann, Meckenbeuren, DE;
Tobias Miller, Waldburg, DE;
Matthias List, Friedrichshafen, DE;
Karl-hermann Katzoreck, Tettnang, DE;
Thomas Breitweg, Schwabisch Gmund, DE;
Armin Rasch, Tettnang, DE;
Bernd Austermann, Meckenbeuren, DE;
Tobias Miller, Waldburg, DE;
Matthias List, Friedrichshafen, DE;
Karl-Hermann Katzoreck, Tettnang, DE;
Thomas Breitweg, Schwabisch Gmund, DE;
Armin Rasch, Tettnang, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A transmission parking lock device having a gearwheel with teeth and gaps and a pawl having a pawl tooth. The gearwheel rotates and the pawl pivots about axes that are parallel to each other. The gearwheel teeth each have a first contour and tooth flanks with respect to rotation of the gearwheel. The pawl tooth has a second contour and tooth flanks relative to the rotation of the gearwheel, and the gearwheel has an outer radius. The gearwheel and pawl are kinematically linked by a linear relationship between the pivoting and rotational angles. The first and/or second contour are at least partially circular with a radius of the outer radius of the gearwheel, and the teeth and/or the pawl tooth have, in the area of the front tooth flank of the gearwheel or parking lock pawl, a crown tip relief relative to the outer radius of the gearwheel.