US 12,344,210 B2
Brake device for vehicle
Si Yoon Park, Yongin-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Aug. 3, 2023, as Appl. No. 18/364,757.
Claims priority of application No. 10-2022-0146147 (KR), filed on Nov. 4, 2022.
Prior Publication US 2024/0149852 A1, May 9, 2024
Int. Cl. B60T 13/74 (2006.01); B60T 13/16 (2006.01); F15B 15/14 (2006.01)
CPC B60T 13/745 (2013.01) [B60T 13/16 (2013.01); F15B 15/14 (2013.01); F15B 2015/1495 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A brake device for a vehicle, comprising:
a housing;
a cylinder within the housing;
a motor coupled to the cylinder and configured to generate a rotational force;
a screw shaft within the cylinder and axially rotated by the rotational force of the motor;
a nut coupled to the screw shaft through a medium of a ball member and configured to reciprocate in an axial direction of the screw shaft in response to a rotation direction of the screw shaft;
a piston configured to be reciprocated by the nut;
a guide provided within the cylinder and configured to restrict rotation and guide a rectilinear motion of the nut; and
a cover coupled to the cylinder and configured to cover the guide, and
further comprising a sleeve positioned within the cylinder in which the piston is received and within which the piston is reciprocated.