US 11,987,294 B2
Twist prevention of the rack by complementary shapes
Bernd Hauser, Steinheim (DE); Juergen Hoersch, Gschwend (DE); Johannes Hein, Munich (DE); and Matthias Buerckert, Schwaebisch Gmuend (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Appl. No. 17/269,181
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Jul. 22, 2019, PCT No. PCT/EP2019/069612
§ 371(c)(1), (2) Date Feb. 17, 2021,
PCT Pub. No. WO2020/038672, PCT Pub. Date Feb. 27, 2020.
Claims priority of application No. 10 2018 214 039.1 (DE), filed on Aug. 21, 2018.
Prior Publication US 2021/0291891 A1, Sep. 23, 2021
Int. Cl. B62D 3/12 (2006.01); B62D 5/04 (2006.01); F16C 29/00 (2006.01); F16H 19/04 (2006.01)
CPC B62D 3/126 (2013.01) [B62D 5/0448 (2013.01); F16C 29/002 (2013.01); F16C 2326/24 (2013.01); F16H 2019/046 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A steering system for steering a wheel of a vehicle according to steer-by-wire principle or for autonomous driving, comprising:
a tie rod configured to redirect the wheel;
a toothed rack with a convex and/or concave cross-sectional portion;
a ball screw drive configured to act on the toothed rack, wherein the toothed rack, as a result of an axial displacement, is configured to lead to control of the tie rod;
a housing, wherein the toothed rack is arranged at least partially inside the housing; and
a component, with a portion having complementary geometry to the convex and/or concave cross-sectional portion of the toothed rack, fixedly positioned with respect to the housing,
wherein the complementary geometry portion of the component and the concave and/or convex cross-sectional portion of the toothed rack provide a positive-locking connection to produce a torsion prevention.