US 12,241,528 B2
Ball screw drive with an anti-rotation safeguard
Sebastian Schaller, Langweid (DE); and Steffen Groessl, Munich (DE)
Assigned to KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH, Munich (DE)
Appl. No. 17/431,955
Filed by KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH, Munich (DE)
PCT Filed Jan. 28, 2020, PCT No. PCT/EP2020/052003
§ 371(c)(1), (2) Date Aug. 18, 2021,
PCT Pub. No. WO2020/169309, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 10 2019 104 125.2 (DE), filed on Feb. 19, 2019.
Prior Publication US 2022/0154808 A1, May 19, 2022
Int. Cl. F16H 25/22 (2006.01); F16H 25/24 (2006.01)
CPC F16H 25/2454 (2013.01) [F16H 25/2204 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An anti-rotation safeguard, comprising:
a movement element configured to move in a longitudinal direction without rotation within an enclosure;
at least one securing element arranged on the movement element with at least one protruding part of the at least one securing element protruding radially outwardly relative to the longitudinal direction from the surface of the movement element; and
at least one guide element arranged in a cutout of the enclosure substantially parallel to the movement element, the at least one guide element having a groove in the longitudinal direction configured to guide the at least one protruding part of the securing element during a longitudinal movement of the movement element,
wherein the at least one guide element has no degree of freedom along the longitudinal axis of the groove, and at least a rotational degree of freedom about an axis parallel to the longitudinal direction, and
wherein longitudinally spaced end faces of the at least one guide element are engaged and supported by the enclosure allowing rotation of the at least one guide element about an axis parallel to the longitudinal axis of the movement element without translational movement of the at least one guide element, wherein one of the end faces of the at least one guide element is directly engaged with the enclosure.