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US 11,173,889 B2Granted
Disc brake assembly
AssigneeMeritor Heavy Vehicle Braking Systems (UK) Limited
InventorsDhananjaya Raveendrappa, Sanjeev Kulkarni, Martin P. Taylor, Matthew McGinn, Pradeep Mirji
Life of this patent
Estimating the term…
Abstract
A brake assembly including an operating shaft, a yoke, and a rotating element. The rotating element bearing may be positioned between a convex bearing surface of the operating shaft and a concave bearing surface of the yoke such that the rotating element bearing may be configured to move relative to the operating shaft and relative to the yoke during actuation of the brake.
Claims18
A brake assembly comprising:
- an operating shaft configured to rotate about a first axis to actuate a brake pad, the first axis being defined by a body of the brake assembly, the operating shaft including a convex bearing surface being arcuate and defining a second axis disposed parallel to the first axis and offset from the first axis;
- a yoke having an arcuate concave bearing surface, the yoke being configured to move linearly relative to the body as the operating shaft rotates about the first axis;
- and
- a rotating element bearing having a plurality of rotating elements retained by a cage, the cage having a first arcuate portion having a first array of apertures for receiving some of the plurality of rotating elements, and a second arcuate portion having a second array of apertures for receiving some of the plurality of rotating elements, the first arcuate portion being connected to the second arcuate portion by a single elongate connecting portion, wherein the rotating element bearing is positioned between the convex bearing surface and the concave bearing surface such that the rotating element bearing is configured to move relative to the operating shaft and relative to the yoke during actuation of the brake pad;
- wherein the first arcuate portion has a first circumferential edge and a second circumferential edge, and the second arcuate portion has a third circumferential edge and a fourth circumferential edge, wherein the elongate connecting portion connects the first circumferential edge to the third circumferential edge, thereby defining a space between the first arcuate portion and the second arcuate portion, the first circumferential edge and the third circumferential edge define a line, the second circumferential edge and the fourth circumferential edge are located on a first side of the line, and an elongate section of the elongate connecting portion is located on a second side of the line opposite the first side.
2 more elements
A brake assembly comprising:
- an operating shaft configured to rotate about a first axis to actuate a brake pad, the first axis being defined by a body of the brake assembly, the operating shaft including a convex bearing surface being arcuate and defining a second axis disposed parallel to the first axis and offset from the first axis;
- a yoke having an arcuate concave bearing surface, the yoke being configured to move linearly relative to the body as the operating shaft rotates about the first axis;
- and
- a rotating element bearing having a plurality of rotating elements retained by a cage, the cage having a first arcuate portion having a first array of apertures for receiving some of the plurality of rotating elements and a second arcuate portion having a second array of apertures for receiving some of the plurality of rotating elements, the first arcuate portion being connected to the second arcuate portion by a single elongate connecting portion, wherein the rotating element bearing is positioned between the convex bearing surface and the concave bearing surface such that the rotating element bearing is configured to move relative to the operating shaft and relative to the yoke during actuation of the brake pad, wherein the first arcuate portion has a first circumferential edge and a second circumferential edge, and the second arcuate portion has a third circumferential edge and a fourth circumferential edge, wherein the elongate connecting portion connects the first circumferential edge to the third circumferential edge, thereby defining a space between the first arcuate portion and the second arcuate portion, the first circumferential edge and the third circumferential edge define a line, the second circumferential edge and the fourth circumferential edge are located on a first side of the line, and an elongate section of the elongate connecting portion is located on a second side of the line opposite the first side;
- wherein the brake assembly is configured to have a rest position in which the operating shaft, rotating element bearing, and yoke are in a first position relative to each other and an actuated position in which the operating shaft, rotating element bearing, and yoke are in a second position relative to each other;
- and
- wherein a primary circumferential edge of the cage is connected to a secondary circumferential edge of the cage by a tertiary edge of the cage, wherein with the brake assembly in the rest position a first part of the tertiary edge engages a component of the brake assembly to prevent movement of the rotating element bearing in a first axial direction and a second part of the tertiary edge engages the component of the brake assembly to prevent movement of the rotating element bearing in a second axial direction opposite the first axial direction.
4 more elements
A brake assembly comprising:
- an operating shaft configured to rotate about a first axis to actuate a brake pad, the first axis being defined by a body of the brake assembly, the operating shaft including a convex bearing surface being arcuate and defining a second axis disposed parallel to the first axis and offset from the first axis;
- a yoke having an arcuate concave bearing surface, the yoke being configured to move linearly relative to the body as the operating shaft rotates about the first axis,
- a rotating element bearing having a plurality of rotating elements retained by a cage, the cage having a first arcuate portion having a first array of apertures for receiving some of the plurality of rotating elements and a second arcuate portion having a second array of apertures for receiving some of the plurality of rotating elements, the first arcuate portion being connected to the second arcuate portion by a single elongate connecting portion, wherein the rotating element bearing is positioned between the convex bearing surface and the concave bearing surface such that the rotating element bearing is configured to move relative to the operating shaft and relative to the yoke during actuation of the brake pad, wherein the first arcuate portion has a first circumferential edge and a second circumferential edge, and the second arcuate portion has a third circumferential edge and a fourth circumferential edge, wherein the elongate connecting portion connects the first circumferential edge to the third circumferential edge, thereby defining a space between the first arcuate portion and the second arcuate portion, the first circumferential edge and the third circumferential edge define a line, the second circumferential edge and the fourth circumferential edge are located on a first side of the line, and an elongate section of the elongate connecting portion is located on a second side of the line opposite the first side;
- wherein the brake assembly is configured to have a rest position in which the operating shaft, rotating element bearing, and yoke are in a first position relative to each other and an actuated position in which the operating shaft, rotating element bearing, and yoke are in a second position relative to each other;
- and
- wherein a first arcuate edge of the first arcuate portion faces axially away from a second arcuate edge of the second arcuate portion, and the yoke has a first abutment axially facing the first arcuate edge and the yoke has a second abutment axially facing the second arcuate edge so as to limit axial movement of the cage relative to the yoke.
3 more elements
Dependencies are inferred from the claim text.