# US 10,865,843 B2 · Brake pad 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 10,865,843 B2 - Document ID: US10865843B2 - Status: Granted - Kind: B2 - Application number: 16/002,754 - Filed: 2018-06-07 - Published: 2018-10-04 - Granted: 2020-12-15 - Earliest claimed: 2015-12-09 - Assignees: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH - Applicants: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH - Inventors: Wolfgang Pahle - Web page: https://patentgrep.com/patent/US10865843B2 ## CPC - F16D 66/021: {using electrical detection or indication means} - F16D 65/0978: {acting on one pad only} - F16D 66/02: Apparatus for indicating wear - F16D 2066/006: {without direct measurement of the quantity monitored, e.g. wear or temperature calculated form force and duration of braking} - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES ## Abstract A brake pad of a disc brake, in particular for a disc brake for a utility vehicle, has a backing plate, which bears a friction lining and to which an element that can be moved in relation to the backing plate is connected, and an electrical wear sensor designed in such a way that the wear sensor is arranged on the element that can be moved in relation to the backing plate so that the wear sensor itself can be moved in relation to the backing plate. ## Claims ### Claim 1 A brake pad for a disc brake, comprising: a backing plate which bears a friction lining and to which an element which is movable in relation to the backing plate is connected; and an electric wear sensor, wherein the wear sensor is arranged on the element which, in relation to the backing plate, is movable such that the wear sensor itself is spaced from the backing plate when the backing plate is at rest and is movable in relation to the backing plate, the wear sensor is arranged on a pad securing spring which forms the movable element, the pad securing spring is entirely or partially secured to the backing plate by a securing element which is movable in relation to the backing plate, and the wear sensor is attached in or to the securing element. ### Claim 2 (depends on 1) The brake pad as claimed in claim 1, wherein when viewed in a travel direction of the pad securing spring, the wear sensor is secured to the backing plate such that the wear sensor is movable in relation thereto. ### Claim 3 (depends on 1) The brake pad as claimed in claim 1, wherein the wear sensor is secured in a positively locking fashion in or on the securing element or the pad securing spring. ### Claim 4 (depends on 1) The brake pad as claimed in claim 1, wherein the pad securing spring has a clip which is bent in the direction of the friction lining and/or toward a brake disc to which the wear sensor is attached. ### Claim 5 (depends on 4) The brake pad as claimed in claim 4, wherein the bent clip to which the wear sensor is attached forms a securing element. ### Claim 6 (depends on 1) The brake pad as claimed in claim 1, wherein the securing element has a cutout through which the wear sensor is plugged into the securing element, and a housing of the wear sensor adjoins on the side of the securing element which is assigned to the friction lining. ### Claim 7 (depends on 1) The brake pad as claimed in claim 1, wherein the wear sensor is latched to the securing element of the pad securing spring. ### Claim 8 (depends on 1) The brake pad as claimed in claim 1, wherein the wear sensor has latching elements which correspond to undercuts of the securing element or of the pad securing spring. ### Claim 9 (depends on 8) The brake pad as claimed in claim 8, wherein the latching elements of the wear sensor are composed of elastically deformable latching limbs. ### Claim 10 (depends on 9) The brake pad as claimed in claim 9, wherein the latching limbs engage behind a securing device of the securing element. ### Claim 11 (depends on 10) The brake pad as claimed in claim 10, wherein the securing element has at least one clip which limits the travel of the pad securing spring. ### Claim 12 (depends on 11) The brake pad as claimed in claim 11, wherein the clip is positioned in an overlapping region of a web of the backing plate, which web bounds an opening in the backing plate. ### Claim 13 (depends on 12) The brake pad as claimed in claim 12, wherein each securing device is assigned an adjacent clip. ### Claim 14 (depends on 1) The brake pad as claimed in claim 1, wherein a cutout is arranged centrally with respect to a length of the securing element on the side which is assigned to the friction lining. ### Claim 15 (depends on 1) The brake pad as claimed in claim 1, wherein the securing element is embodied in the form of a cap.