Actuation mechanism
AssigneeMeritor Heavy Vehicle Braking Systems (UK) Limited
InventorsSanjeev Kulkarni, Martin Taylor, Arun Kumar
Life of this patent
Estimating the term…
Abstract
An operating shaft and an actuation mechanism for a disc brake. The actuation mechanism may include a wear adjuster mechanism and the operating shaft. The operating shaft may include opposed pairs of arcuate surfaces arranged with offset axes of rotation and a recess therebetween for accommodating a portion of the wear adjuster mechanism.
Claims20
An operating shaft for a disc brake, the operating shaft comprising:
- opposed pairs of arcuate surfaces arranged with offset axes of rotation, one arcuate surface of each pair adapted to be grounded to a housing of the disc brake and the other arcuate surface of each pair adapted to transmit an actuating force to a brake pad of the disc brake upon rotation of the operating shaft;
- a recess intermediate the pairs of arcuate surfaces for accommodating a portion of a wear adjuster mechanism;
- and
- a pin adapted to engage a corresponding input driving portion of the wear adjuster mechanism, wherein the pin extends at a non-zero angle with respect to both the axes of rotation and a direction of transmission of the actuating force, and wherein the pin has a longitudinal axis, and wherein the longitudinal axis of the pin does not intersect the axes of rotation.
A disc brake adapted to be air, hydraulically or electrically actuated, the disc brake comprising:
- a housing;
- a wear adjuster mechanism having an input driving portion;
- and
- an operating shaft that includes:
- opposed pairs of arcuate surfaces arranged with offset axes of rotation, one arcuate surface of each pair arranged to be grounded to the housing and the other arcuate surface of each pair arranged to transmit an actuating force to a brake pad of the disc brake upon rotation of the operating shaft;
- a recess intermediate the pairs of arcuate surfaces for accommodating a portion of the wear adjuster mechanism;
- and
- a pin arranged to engage a corresponding slot of the input driving portion;
- wherein the pin extends at a non-zero angle with respect to both the axes of rotation and a direction of transmission of the actuating force, and wherein the pin has a longitudinal axis, and wherein the longitudinal axis of the pin does not intersect the axes of rotation.
An operating shaft for a disc brake, the operating shaft comprising:
- opposed pairs of arcuate surfaces arranged with offset axes of rotation, one arcuate surface of each pair adapted to be grounded to a housing of the disc brake and the other arcuate surface of each pair adapted to transmit an actuating force to a brake pad of the disc brake upon rotation of the operating shaft;
- a recess intermediate the pairs of arcuate surfaces for accommodating a portion of a wear adjuster mechanism;
- a pin adapted to engage a corresponding input driving portion of the wear adjuster mechanism, the pin extending from the operating shaft at a non-zero angle with respect to the axes of rotation and a direction of force transmission;
- and
- a tongue of material extending into the recess:
- wherein a hole is provided in the tongue, the hole arranged to receive the pin.
Dependencies are inferred from the claim text.