US 12,379,008 B2
Brake actuator, in particular electromechanical brake actuator of a commercial vehicle
Bartlomiej Tomala, Opole (PL); and Peter Beier, Wunstorf (DE)
Assigned to ZF CV Systems Europe BV, Brussels (BE)
Appl. No. 17/781,852
Filed by ZF CV Systems Europe BV, Brussels (BE)
PCT Filed Dec. 1, 2020, PCT No. PCT/EP2020/084065
§ 371(c)(1), (2) Date Jun. 2, 2022,
PCT Pub. No. WO2021/110651, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 10 2019 133 213.3 (DE), filed on Dec. 5, 2019.
Prior Publication US 2023/0003271 A1, Jan. 5, 2023
Int. Cl. F16D 65/18 (2006.01); F16D 55/2255 (2006.01); F16D 121/24 (2012.01); F16D 125/28 (2012.01); F16D 125/58 (2012.01); F16D 125/64 (2012.01); F16D 125/70 (2012.01)
CPC F16D 65/18 (2013.01) [F16D 55/2255 (2013.01); F16D 2121/24 (2013.01); F16D 2125/28 (2013.01); F16D 2125/582 (2013.01); F16D 2125/64 (2013.01); F16D 2125/70 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A brake actuator (1, 1′) comprising:
a casing (10),
an electric motor for providing a driving torque,
a cam disc (20) rotatably mounted to the casing (10), wherein the cam disc (20) is operatively coupled to the electric motor,
a push rod (30) disposed in the casing (10), the push rod configured to reciprocate in a longitudinal direction (100) between a retracted position (300) and an extended position (400),
wherein the push rod (30) and the cam disc (20) are operatively coupled such that a rotational movement of the cam disc (20) causes a linear movement of the push rod,
wherein a guiding member (40) is mounted to the casing (10), wherein the guiding member is a bushing;
wherein the guiding member (40) is configured to guide movement of the push rod (30) in longitudinal direction (100);
wherein the guiding member (40) has at least one slot (43) extending in the longitudinal direction (100).