US 12,169,021 B2
Actuator, and device for engaging a park lock of a motor-vehicle automatic transmission having such an actuator, and motor vehicle equipped therewith
Oliver Keller, Nister-Mohrendorf (DE); Tobias Eichenauer, Lahnau (DE); and Kevin Hartbrod, Lahnau (DE)
Assigned to Küster Holding GmbH, Ehringshausen (DE)
Appl. No. 18/247,283
Filed by Kuster Holding GmbH, Ehringshausen (DE)
PCT Filed Aug. 25, 2021, PCT No. PCT/EP2021/073454
§ 371(c)(1), (2) Date Mar. 30, 2023,
PCT Pub. No. WO2022/069113, PCT Pub. Date Apr. 7, 2022.
Claims priority of application No. 102020125725.2 (DE), filed on Oct. 1, 2020.
Prior Publication US 2024/0159312 A1, May 16, 2024
Int. Cl. F16H 61/28 (2006.01); F16H 61/12 (2010.01); F16H 61/32 (2006.01); F16H 63/34 (2006.01); F16H 61/36 (2006.01)
CPC F16H 61/2807 (2013.01) [F16H 61/12 (2013.01); F16H 61/32 (2013.01); F16H 63/3466 (2013.01); F16H 63/3475 (2013.01); F16H 2061/1232 (2013.01); F16H 2061/1292 (2013.01); F16H 2061/2853 (2013.01); F16H 2061/2869 (2013.01); F16H 2061/2892 (2013.01); F16H 2061/326 (2013.01); F16H 61/36 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An actuator for a park lock of a motor vehicle automatic transmission, comprising:
a drive that powers a drive shaft,
a first actuating element that is operatively connected to the drive shaft and that serves to actuate a shifting mechanism,
a spring element that is supported on one side on a housing part of the actuator and, on the other side, on a second actuating element configured so as to load the spring element, and
an electromagnetic retaining apparatus with an electromagnet which magnetically interacts with a magnet armature containing a ferromagnetic material component for purposes of holding in place the spring element that is loaded under the build-up of a return force,
wherein the magnet armature is mounted so as to be tiltable and/or pivotable at a pivoting part of the retaining apparatus, wherein the pivoting part has a holding frame into which the magnet armature is inserted, and wherein the holding frame has a tapered wall thickness between the pivoting part and the holding frame so that the pivoting part may be pivoted or tilted around a first tilting or pivoting axis (X) at the pivoting part.