Brake device for vehicle
AssigneeHyundai Mobis Co., Ltd.
InventorSi Yoon Park
Life of this patent
Estimating the term…
Abstract
Proposed is a brake device for a vehicle including a housing, a cylinder installed within the housing, a motor coupled to the cylinder and providing a rotational force, a screw shaft installed within the cylinder and axially rotated by the rotational force of the motor, a nut coupled to the screw shaft through the medium of a ball member and reciprocating in the axial direction of the screw shaft depending on a rotation direction of the screw shaft, a piston coupled to the nut and moved by being interlocked with the nut, a guide provided within the cylinder and restricting the rotation of the nut and providing guidance to a rectilinear motion of the nut, and a cover coupled to the cylinder and covering the guide.
Claims19
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.
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 bearing provided within the cylinder, the bearing being coupled to the screw shaft and configured to support an axial load when oil pressure is formed within the cylinder.
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 retaining part positioned between the nut and the piston and having an opening.
Dependencies are inferred from the claim text.