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US 12,485,865 B2Granted
Brake actuator unit and electromechanical brake
AssigneeZF Active Safety GmbH
InventorVolker Knop
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a brake actuator unit for an electromechanical brake and to an electromechanical brake. The brake actuator unit comprises a spindle, a spindle nut, and a spindle bearing, which receives the spindle, has a spherical bearing contact surface and absorbs the axial reaction forces of the spindle when the brake is actuated.
Claims17
A brake actuator unit for an electromechanical brake, the brake actuator unit comprising:
- a spindle;
- a spindle nut;
- a brake piston;
- a spindle bearing, which receives the spindle, has a spherical bearing contact surface and absorbs axial reaction forces of the spindle when the brake is actuated;
- and
- a cup sleeve, which has a base and which accommodates the brake piston and the spindle nut in its interior space.
3 more elements
A brake actuator unit comprising:
- a spindle;
- a spindle nut;
- a brake piston;
- and
- a spindle bearing, which receives the spindle, has a spherical bearing contact surface and absorbs axial reaction forces of the spindle when the brake is actuated,
- wherein the spindle has, on a brake pad side, a cross-sectionally thickened shank section, which has a thread of the spindle on an outer circumferential surface and has a drive shaft extension, which is smaller in cross section than the said shank section, as well as a transitional section between the shank section and the drive shaft extension, wherein the spherical bearing contact surface rests against a complementary contact surface on the transitional section.
3 more elements
An electromechanical brake comprising:
- a brake actuator unit including:
- a spindle;
- a spindle nut;
- a brake piston;
- a spindle bearing, which receives the spindle, has a spherical bearing contact surface and absorbs the axial reaction forces of the spindle when the brake is actuated;
- and
- a cup sleeve, which has a base and which accommodates the brake piston and the spindle nut in its interior space;
- and
- an electric motor for actuating the brake, which is coupled to the spindle nut in a torque-transmitting manner.
6 more elements
Dependencies are inferred from the claim text.