US 12,145,551 B2
Actuator assembly for a vehicle brake and method for activating an actuator assembly for a vehicle brake
Galus Chelaidite, South Lyon, MI (US); Volker Knop, Ulmen (DE); Nicholas Alford, Waldesch (DE); Christoph Beuerle, Koblenz (DE); Werner Seibert, Kammerforst (DE); and Markus Mallmann, Pfalzfeld (DE)
Assigned to ZF Active Safety GmbH, Koblenz (DE); and ZF Active Safety US Inc., Livonia, MI (US)
Filed by ZF Active Safety US Inc., Livonia, MI (US); and ZF Active Safety GmbH, Koblenz (DE)
Filed on Nov. 17, 2021, as Appl. No. 17/528,257.
Prior Publication US 2023/0150467 A1, May 18, 2023
Int. Cl. B60T 13/74 (2006.01); B60T 1/06 (2006.01); F16D 65/18 (2006.01); F16D 121/24 (2012.01); F16D 125/40 (2012.01); F16D 125/50 (2012.01)
CPC B60T 13/746 (2013.01) [B60T 1/065 (2013.01); F16D 65/18 (2013.01); F16D 2121/24 (2013.01); F16D 2125/40 (2013.01); F16D 2125/50 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An actuator assembly (10) for a vehicle brake, the actuator assembly (10) comprising:
a carrier assembly (22) on which an activating carriage (88) for a brake lining (96) is guided linearly,
an electric motor (28) fastened to the carrier assembly (22) and which is coupled drivingly to the activating carriage (88) via a gear unit (67) and a spindle drive (72) such that the activating carriage (88) can be displaced selectively between a retracted position and an extended position, and
a locking assembly (106) for selectively immobilizing in rotation an output shaft (38) of the electric motor (28), wherein the locking assembly (106) comprises a locking lever (114) which at a first end (116) is mounted rotatably on the carrier assembly (22) and at a second opposite end (118) is coupled to a locking actuator (112), wherein a locking tooth (124), which can be selectively brought into engagement with a locking contour provided on the output shaft (38), is positioned in the direction in which the locking lever (114) extends longitudinally between the first end (116) and the second end (118),
wherein a supporting contour (129) for supporting a force component acting radially towards the rotatable mounting of the locking lever (114) is provided between the first end (116) and the second end (118) in the direction in which the locking lever (114) extends longitudinally, wherein the supporting contour (129) interacts with a bearing contour (132) provided on the carrier assembly (22).