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US 10,895,297 B2Granted
Disc brake
AssigneeMeritor Heavy Vehicle Braking Systems (UK) Limited
InventorsMartin P. Taylor, Sean Cleary
Life of this patent
Estimating the term…
Abstract
A disc brake having a piston and a wear adjustment mechanism. The piston has a hollow rotatable portion. The wear adjustment mechanism may include a friction clutch having one or more input plates and one or more output plates arranged in a face-contacting relationship. The output plate(s) may be located within the rotatable portion and may directly drivingly engage the rotatable portion.
Claims20
A disc brake comprising:
- a piston for applying an actuating force to a brake pad, the piston including an inner piston that is rotatable about an axis and an outer piston that receives the inner piston, wherein rotation of the inner piston causes the outer piston to extend;
- and
- a wear adjustment mechanism for adjusting extension of the outer piston to account for wear of the brake pad, the wear adjustment mechanism including a friction clutch having an input plate and an output plate arranged in a face-contacting relationship, wherein the output plate is located within the inner piston and directly drivingly engages the inner piston, wherein the inner piston has a radially inner surface that faces toward the axis and an axial groove that is formed in the radially inner surface and wherein components in rotatable contact with the inner piston are only rotatable about the axis.
A disc brake comprising:
- a piston for applying an actuating force to a brake pad, the piston including an inner piston that is rotatable about an axis and an outer piston that receives the inner piston, wherein rotation of the inner piston causes the outer piston to extend;
- and
- a wear adjustment mechanism for adjusting extension of the outer piston to account for wear of the brake pad, the wear adjustment mechanism being at least partially received inside the inner piston and including a friction clutch having an input plate and an output plate arranged in a face-contacting relationship, wherein the output plate is located within the inner piston and directly drivingly engages the inner piston;
- and
- a manual adjuster shaft that is at least partially received inside the inner piston and is rotatable about the axis to manually adjust the wear adjuster mechanism.
2 more elements
A disc brake comprising:
- a piston for applying an actuating force to a brake pad, the piston including an inner piston that is rotatable about an axis and an outer piston that receives the inner piston, wherein rotation of the inner piston causes the outer piston to extend;
- and
- a wear adjustment mechanism for adjusting extension of the outer piston to account for wear of the brake pad, the wear adjustment mechanism including a friction clutch having an input plate and an output plate arranged in a face-contacting relationship, wherein the output plate is located within the inner piston and directly drivingly engages the inner piston, wherein the outer piston is the only component that is completely disposed outside of the inner piston that rotatably engages the inner piston.
Dependencies are inferred from the claim text.