US 11,667,320 B2
Adjustment drive for a steering column, and steering column for a motor vehicle
Sebastian Huber, Göfis (AT); Walter Lampert, Göfis (AT); and Jean-Pierre Specht, Haag (CH)
Assigned to THYSSENKRUPP PRESTA AG, Eschen (LI); and THYSSENKRUPP AG, Essen (DE)
Appl. No. 17/286,853
Filed by thyssenkrupp Presta AG, Eschen (LI); and thyssenkrupp AG, Essen (DE)
PCT Filed Nov. 11, 2019, PCT No. PCT/EP2019/080808
§ 371(c)(1), (2) Date Apr. 20, 2021,
PCT Pub. No. WO2020/099292, PCT Pub. Date May 22, 2020.
Claims priority of application No. 10 2018 219 264.2 (DE), filed on Nov. 12, 2018.
Prior Publication US 2021/0380157 A1, Dec. 9, 2021
Int. Cl. B62D 1/181 (2006.01); F16C 17/10 (2006.01); F16C 33/04 (2006.01); F16C 43/02 (2006.01); F16H 25/20 (2006.01)
CPC B62D 1/181 (2013.01) [F16C 17/10 (2013.01); F16C 33/046 (2013.01); F16C 43/02 (2013.01); F16H 25/20 (2013.01); F16C 2226/70 (2013.01); F16C 2229/00 (2013.01); F16C 2326/24 (2013.01); F16H 2025/209 (2013.01); F16H 2025/2031 (2013.01); F16H 2025/2084 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An adjustment drive for a steering column of a motor vehicle, the adjustment drive comprising a drive unit that includes:
a threaded spindle that is supported at a bearing portion in a gearbox housing, the threaded spindle being rotatable about an axis of the threaded spindle, wherein the threaded spindle includes a threaded portion with a spindle thread that is axially adjoined by a shaft portion; and
a gear wheel disposed in a rotationally secure manner on the shaft portion of the threaded spindle, wherein the gearwheel meshes with a drive wheel that is coupled to a motor such that the shaft portion is configured to be rotatably driven,
wherein a peripheral bearing groove is disposed between the threaded portion and the gear wheel, the peripheral bearing groove having a groove base that extends between groove flanks of the peripheral bearing groove, wherein the bearing portion of the threaded spindle is disposed in the peripheral bearing groove in a region of the groove base, with the bearing portion being supported in a sliding manner in a bearing opening of a bearing plate that engages radially in the peripheral bearing groove.