US 12,269,448 B2
Actuator for parking brake
Sudhirkumar S Karajgi, Haryana (IN); and Prakash D Sunke, Haryana (IN)
Assigned to HL MANDO CORPORATION, Pyeongtaek si (KR)
Appl. No. 17/774,598
Filed by HL MANDO CORPORATION, Pyeongtaek-si (KR)
PCT Filed Oct. 15, 2020, PCT No. PCT/KR2020/014082
§ 371(c)(1), (2) Date May 5, 2022,
PCT Pub. No. WO2021/091112, PCT Pub. Date May 14, 2021.
Claims priority of application No. 10-2019-0140809 (KR), filed on Nov. 6, 2019.
Prior Publication US 2022/0396253 A1, Dec. 15, 2022
Int. Cl. B60T 13/74 (2006.01); F16D 65/14 (2006.01); F16D 121/22 (2012.01); F16D 121/24 (2012.01); F16D 125/50 (2012.01); F16D 127/06 (2012.01); F16H 57/02 (2012.01)
CPC B60T 13/746 (2013.01) [F16D 65/14 (2013.01); B60T 2270/40 (2013.01); F16D 2121/22 (2013.01); F16D 2121/24 (2013.01); F16D 2125/50 (2013.01); F16D 2127/06 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02082 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An actuator for a parking brake of a vehicle, comprising:
a motor configured to generate a power;
a reduction gear portion configured to transmit the power of the motor to the parking braking of the vehicle;
a locking portion configured to limit rotation of the reduction gear portion; and
a housing in which the motor, the reduction gear portion, and the locking portion are accommodated;
wherein the locking portion comprises:
a lock gear coupled to the reduction gear portion so as to rotate together,
a lever configured to controllably engage with the lock gear through a hinge motion,
an elastic member configured to push the lever toward the lock gear, and
an electromagnet member configured to controllably generate an electromagnetic force when the power generated by the motor is applied so as to separate the lever from the lock gear,
wherein the electromagnet member comprises a coil wrapped around one or more rods that protrude from the electromagnet member toward the lever.