US 11,697,446 B2
Adjustment drive for a steering column, drive unit for an adjustment drive, motor-adjustable steering column for a motor vehicle, and method for producing an adjustment drive for a steering column
Arne Schacht, Feldkirch (AT); Sebastian Huber, Göfis (AT); and Jean-Pierre Specht, Haag (CH)
Assigned to THYSSENKRUPP PRESTA AG, Eschen (LI); and THYSSENKRUPP AG, Essen (DE)
Appl. No. 16/605,244
Filed by THYSSENKRUPP PRESTA AG, Eschen (LI); and thyssenkrupp AG, Essen (DE)
PCT Filed Apr. 16, 2018, PCT No. PCT/EP2018/059684
§ 371(c)(1), (2) Date Oct. 15, 2019,
PCT Pub. No. WO2018/192880, PCT Pub. Date Oct. 25, 2018.
Claims priority of application No. 10 2017 206 551.6 (DE), filed on Apr. 19, 2017.
Prior Publication US 2021/0139067 A1, May 13, 2021
Int. Cl. B62D 1/181 (2006.01); B62D 1/185 (2006.01); F16H 25/20 (2006.01); F16H 57/022 (2012.01); F16H 57/039 (2012.01); F16H 57/12 (2006.01)
CPC B62D 1/181 (2013.01) [B62D 1/185 (2013.01); F16H 25/20 (2013.01); F16H 57/039 (2013.01); F16H 2025/209 (2013.01); F16H 2057/0228 (2013.01); F16H 2057/125 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An adjustment drive for a motor-adjustable steering column for a motor vehicle, comprising:
a drive unit having a transmission;
a drive wheel mounted in the transmission and which when driven rotates about a drive axis; and
a transmission wheel in operative engagement with the drive wheel, the transmission wheel rotatably mounted in the transmission about a transmission axis,
wherein the transmission is composed of a drive module, which comprises the drive wheel, and a transmission module, which comprises the transmission wheel, wherein the drive module and the transmission module are connected to one another by a joining connection that is non-releasable,
wherein the drive module comprises a drive part housing in which the drive wheel is mounted, wherein the transmission module comprises a transmission part housing in which the transmission wheel is mounted, wherein the drive part housing is connected to the transmission part housing via the joining connection,
wherein the transmission part housing comprises an exterior tubular portion that is coaxial to the transmission axis and that is partially surrounded by the drive part housing,
wherein the drive part housing and the exterior tubular portion of the transmission part housing are sized and shaped to permit the exterior tubular portion to translate along or parallel to the transmission axis within the drive part housing prior to formation of the joining connection.