US 12,351,250 B2
Auxiliary steering device for a hydrostatic vehicle steering system
Stefan Brocke, Mannheim (DE); Norbert Fritz, Ilvesheim (DE); and Richard Starck, Falkenstein (DE)
Assigned to DEERE & COMPANY, Moline, IL (US)
Appl. No. 18/836,938
Filed by DEERE & COMPANY, Moline, IL (US)
PCT Filed Jan. 16, 2023, PCT No. PCT/EP2023/050873
§ 371(c)(1), (2) Date Aug. 8, 2024,
PCT Pub. No. WO2023/151899, PCT Pub. Date Aug. 17, 2023.
Claims priority of application No. 102022103106.3 (DE), filed on Feb. 10, 2022.
Prior Publication US 2025/0136171 A1, May 1, 2025
Int. Cl. B62D 5/00 (2006.01); B62D 5/09 (2006.01); B62D 6/00 (2006.01)
CPC B62D 5/003 (2013.01) [B62D 5/091 (2013.01); B62D 6/00 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An auxiliary steering device for a hydrostatic vehicle steering system, comprising:
an input shaft which can be actuated by a steering handle,
an output shaft for actuating a steering metering valve, and
a planetary gearing including a planetary wheel carrier with multiple planetary wheels, which mesh with a sun gear and a surrounding ring gear,
wherein the input shaft is connected to the planetary wheel carrier and the output shaft is connected to the sun gear, in each case for conjoint rotation, and wherein the auxiliary steering device further has an electric drive for exerting a torque on the ring gear, a braking device for fixing the input shaft, and a coupling device for producing a rotationally fixed connection between the output shaft and the planetary wheel carrier.