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. 13, 2016
Filed:
Apr. 21, 2011
Ludger Rake, Steinfeld, DE;
Andreas Giefer, Lemfoerde, DE;
Ludger Rake, Steinfeld, DE;
Andreas Giefer, Lemfoerde, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
An activation device for selecting shift stages of a shift-by-wire vehicle transmission comprises a housing and an activation knob which can be moved in a translatory fashion and a latching device with a latching pin and latching contour as latching elements for generating latching forces and restoring forces. The activation device is defined by a latching gearwheel which is in engagement with a toothing arrangement on the activation knob. In this context, one of the two latching elements is connected to the latching gearwheel and in this way forms a rotatable latching element. The second latching element is directly or indirectly connected to the base housing and forms the fixed latching element.