# US 2023/0272829 A1 · Friction Pad Carrier for a Disc Brake > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0272829 A1 - Document ID: US20230272829A1 - Status: Published application - Kind: A1 - Application number: 17/681,103 - Filed: 2022-02-25 - Published: 2023-08-31 - Earliest claimed: 2022-02-25 - Assignees: Bendix Commercial Vehicle Systems LLC - Applicants: Bendix Commercial Vehicle Systems LLC - Inventors: Kurt Singleton; Luis Ayala - Web page: https://patentgrep.com/patent/US20230272829A1 ## CPC - F16D 65/0056: {Brake supports} - F16D 55/226: in which the common actuating member is moved axially {, e.g. floating caliper disc brakes} - F16D 55/227: by two {or more} pins - F16D 65/095: Pivots or supporting members therefor - F16D 2055/0008: {Brake supports} - F16D 2200/0013: Cast iron - F16D 2200/0021: Steel - F16D 2250/0084: Assembly or disassembly - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES ## Abstract A friction pad carrier for a vehicle disc brake includes a frame having an aperture through which a portion of a rotor rotating about a rotational axis extends. The frame mounts friction pads on opposite sides of the rotor. The frame includes lugs proximate each end that receive fasteners coupling the frame to an anchor plate mounted on an axle of the vehicle. The fasteners permit some amount of surge movement and sway movement between the frame and the anchor plate in a plane at the interface between the frame and the anchor plate and yaw movement about an axis perpendicular to the plane. A first alignment pin between one of the lugs and the anchor plate inhibits the amount of surge movement and sway movement and a second alignment pin between one of the lugs and the anchor plate inhibits the amount of yaw movement. ## Claims ### Claim 1 A friction pad carrier for a disc brake for a vehicle, comprising: a frame defining a central aperture configured to receive an arcuate portion of a rotor that is configured for rotation about a rotational axis, the frame configured for mounting first and second friction pads on opposite sides of the rotor and further defining a first lug proximate one end of the frame and defining a first fastener bore, the first fastener bore configured for alignment with a corresponding first fastener bore in an anchor plate mounted on an axle of the vehicle and configured to receive a first fastener for coupling the frame to the anchor plate at a first interface disposed within a plane; and, a second lug proximate another end of the frame and defining a second fastener bore, the second fastener bore configured for alignment with a corresponding second fastener bore in the anchor plate and configured to receive a second fastener for coupling the frame to the anchor plate at a second interface disposed within the plane; wherein the first fastener and the second fastener permit an amount of surge movement between the frame and the anchor plate within the plane in a direction parallel to the rotational axis, an amount of sway movement between the frame and the anchor plate within the plane in a direction perpendicular to the surge movement and an amount of yaw movement about an axis perpendicular to the plane and wherein the first lug further defines a first alignment pin bore configured for alignment with a corresponding first alignment pin bore in the anchor plate and configured to receive a first alignment pin inhibiting the amount of surge movement and the amount of sway movement and one of the first lug and the second lug defines a second alignment pin bore configured for alignment with a corresponding second alignment pin bore in the anchor plate and configured to receive a second alignment inhibiting the amount of yaw movement. ### Claim 2 (depends on 1) The friction pad carrier of claim 1, further comprising the first alignment pin, the first alignment pin press fit within the first alignment pin bore. ### Claim 3 (depends on 1) The friction pad carrier of claim 1 wherein the second alignment pin bore comprises a slotted bore. ### Claim 4 (depends on 1) The friction pad carrier of claim 1 wherein the second lug defines the second alignment pin bore. ### Claim 5 (depends on 1) The friction pad carrier of claim 1 wherein a diameter of the first alignment pin bore is less than a diameter of the second alignment pin bore. ### Claim 6 (depends on 1) The friction pad carrier of claim 1 wherein the first lug defines a third fastener bore spaced from the first fastener bore, the third fastener bore configured for alignment with a corresponding third fastener bore in the anchor plate and configured to receive a third fastener for coupling the frame to the anchor plate, a center axis of the first alignment pin bore disposed further from the rotational axis than a center axis of the first fastener bore, but nearer to the rotational axis than a center axis of the third fastener bore. ### Claim 7 A disc brake for a vehicle, comprising: a friction pad carrier comprising a frame defining a central aperture configured to receive an arcuate portion of a rotor that is configured for rotation about a rotational axis, the frame configured for mounting first and second friction pads on opposite sides of the rotor and further defining a first lug proximate one end of the frame and defining a first fastener bore, the first fastener bore configured for alignment with a corresponding first fastener bore in an anchor plate mounted on an axle of the vehicle and configured to receive a first fastener for coupling the frame to the anchor plate at a first interface disposed within a plane; and, a second lug proximate another end of the frame and defining a second fastener bore, the second fastener bore configured for alignment with a corresponding second fastener bore in the anchor plate and configured to receive a second fastener for coupling the frame to the anchor plate at a second interface disposed within the plane; wherein the first fastener and the second fastener permit an amount of surge movement between the frame and the anchor plate within the plane in a direction parallel to the rotational axis, an amount of sway movement between the frame and the anchor plate within the plane in a direction perpendicular to the surge movement and an amount of yaw movement about an axis perpendicular to the plane and wherein the first lug further defines a first alignment pin bore configured for alignment with a corresponding first alignment pin bore in the anchor plate and configured to receive a first alignment pin inhibiting the amount of surge movement and the amount of sway movement and one of the first lug and the second lug defines a second alignment pin bore configured for alignment with a corresponding second alignment pin bore in the anchor plate and configured to receive a second alignment inhibiting the amount of yaw movement; and, a caliper coupled to the friction pad carrier and configured for movement relative to the friction pad carrier to urge the first friction pad and the second friction pad into engagement with the rotor. ### Claim 8 (depends on 7) The disk brake of claim 7 wherein the friction pad carrier further comprises the first alignment pin, the first alignment pin press fit within the first alignment pin bore. ### Claim 9 (depends on 7) The disk brake of claim 7 wherein the second alignment pin bore comprises a slotted bore. ### Claim 10 (depends on 7) The disk brake of claim 7 wherein the second lug defines the second alignment pin bore. ### Claim 11 (depends on 7) The disk brake of claim 7 wherein a diameter of the first alignment pin bore is less than a diameter of the second alignment pin bore. ### Claim 12 (depends on 7) The disk brake of claim 7 wherein the first lug defines a third fastener bore spaced from the first fastener bore, the third fastener bore configured for alignment with a corresponding third fastener bore in the anchor plate and configured to receive a third fastener for coupling the frame to the anchor plate, a center axis of the first alignment pin bore disposed further from the rotational axis than a center axis of the first fastener bore, but nearer to the rotational axis than a center axis of the third fastener bore. ### Claim 13 A disc brake assembly for a vehicle, comprising: an anchor plate configured for mounting to an axle of the vehicle, the anchor plate defining an aperture through which the axle extends; a friction pad carrier coupled to the anchor plate, the friction pad carrier comprising a frame defining a central aperture configured to receive an arcuate portion of a rotor that is configured for rotation about a rotational axis, the frame configured for mounting first and second friction pads on opposite sides of the rotor and further defining a first lug proximate one end of the frame and defining a first fastener bore, the first fastener bore configured for alignment with a corresponding first fastener bore in the anchor plate and configured to receive a first fastener for coupling the frame to the anchor plate at a first interface disposed within a plane; and, a second lug proximate another end of the frame and defining a second fastener bore, the second fastener bore configured for alignment with a corresponding second fastener bore in the anchor plate and configured to receive a second fastener for coupling the frame to the anchor plate at a second interface disposed within the plane; wherein the first fastener and the second fastener permit an amount of surge movement between the frame and the anchor plate within the plane in a direction parallel to the rotational axis, an amount of sway movement between the frame and the anchor plate within the plane in a direction perpendicular to the surge movement and an amount of yaw movement about an axis perpendicular to the plane and wherein the first lug further defines a first alignment pin bore configured for alignment with a corresponding first alignment pin bore in the anchor plate and configured to receive a first alignment pin inhibiting the amount of surge movement and the amount of sway movement and one of the first lug and the second lug defines a second alignment pin bore configured for alignment with a corresponding second alignment pin bore in the anchor plate and configured to receive a second alignment inhibiting the amount of yaw movement; and, a caliper coupled to the friction pad carrier and configured for movement relative to the friction pad carrier to urge the first friction pad and the second friction pad into engagement with the rotor. ### Claim 14 (depends on 13) The disc brake assembly of claim 13 wherein the friction pad carrier further comprises the first alignment pin, the first alignment pin press fit within the first alignment pin bore. ### Claim 15 (depends on 13) The disc brake assembly of claim 13 wherein the second alignment pin bore comprises a slotted bore. ### Claim 16 (depends on 13) The disc brake assembly of claim 13 wherein the second lug defines the second alignment pin bore. ### Claim 17 (depends on 13) The disk brake assembly of claim 13 wherein a diameter of the first alignment pin bore is less than a diameter of the second alignment pin bore. ### Claim 18 (depends on 13) The disc brake assembly of claim 13 wherein the first lug defines a third fastener bore spaced from the first fastener bore, the third fastener bore configured for alignment with a corresponding third fastener bore in the anchor plate and configured to receive a third fastener for coupling the frame to the anchor plate, a center axis of the first alignment pin bore disposed further from the rotational axis than a center axis of the first fastener bore, but nearer to the rotational axis than a center axis of the third fastener bore.