# US 10,502,276 B2 · Rotor cover > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,502,276 B2 - Document ID: US10502276B2 - Status: Granted - Kind: B2 - Application number: 15/635,028 - Filed: 2017-06-27 - Published: 2018-01-11 - Granted: 2019-12-10 - Earliest claimed: 2016-07-05 - Assignees: Shimano Inc. - Applicants: Shimano Inc. - Inventors: Etsuyoshi Watarai; Takashi Adachi; Yoshiaki Ando; Takafumi Nishino; Osamu Kariyama; Nobuyoshi Fujii; Masahiro Nakakura - Web page: https://patentgrep.com/patent/US10502276B2 ## CPC - F16D 65/0081: {Brake covers} - B62L 1/005: {constructional features of brake elements, e.g. fastening of brake blocks in their holders} - F16D 55/22: by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads - F16D 65/0006: {Noise or vibration control} - F16D 65/12: Discs; Drums for disc brakes - F16D 2055/0037: {Protective covers} - F16D 2065/134: {Connection} - F16D 2200/003: Light metals, e.g. aluminium - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES - B62L: BRAKES SPECIALLY ADAPTED FOR CYCLES {(arrangements in cycles for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions B60T8/00)} ## Abstract A rotor cover is provided that includes different portions and is configured to meet requirements of each portion. The rotor cover includes a positioning portion that is positioned relative to a bicycle frame or a disc brake rotor and a cover portion that is coupled to the positioning portion to cover the disc brake rotor. The cover portion and the positioning portion include different materials with respect to one another. ## Claims ### Claim 1 A rotor cover comprising: a positioning portion that is configured to be positioned relative to a bicycle frame or a disc brake rotor, the positioning portion including an annular part having a circumferential portion which projects in an axial direction of the rotor, the positioning portion further including a coupling part extending radially from the annular part, and a cover portion coupled to the positioning portion to cover the disc brake rotor, the cover portion and the positioning portion including different materials with respect to one another, the coupling part of the positioning portion being coupled to the cover portion. ### Claim 2 (depends on 1) The rotor cover according to claim 1, wherein the cover portion includes a resin material. ### Claim 3 (depends on 1) The rotor cover according to claim 1, wherein the positioning portion includes a metal material. ### Claim 4 (depends on 3) The rotor cover according to claim 3, wherein the positioning portion includes an aluminum alloy material. ### Claim 5 (depends on 1) The rotor cover according to claim 1, wherein the cover portion is coupled to the positioning portion in a non-removable manner. ### Claim 6 (depends on 5) The rotor cover according to claim 5, wherein the cover portion is formed integrally with the positioning portion. ### Claim 7 (depends on 1) The rotor cover according to claim 1, wherein the cover portion is coupled to the positioning portion in a removable manner. ### Claim 8 (depends on 1) The rotor cover according to claim 1, wherein the positioning portion is configured to be positioned relative to the bicycle frame to which a disc brake caliper is coupled. ### Claim 9 (depends on 8) The rotor cover according to claim 8, wherein the positioning portion is configured to be supported by a bicycle hub so that the positioning portion is attachable and removable together with the bicycle huh with respect to the bicycle frame. ### Claim 10 (depends on 9) The rotor cover according to claim 9, wherein a shaft member of the bicycle hub passes through the annular part of the positioning portion. ### Claim 11 (depends on 8) The rotor cover according to claim 8, further comprising: an attachment portion configured to be attached to at least one of the bicycle frame and the disc brake caliper. ### Claim 12 (depends on 11) The rotor cover according to claim 11, wherein the attachment portion includes a band member attachable to the bicycle frame. ### Claim 13 (depends on 11) The rotor cover according to claim 11, wherein the attachment portion includes a clip member configured to hold the bicycle frame. ### Claim 14 (depends on 8) The rotor cover according to claim 8, wherein the cover portion includes a first edge facing at least one of the bicycle frame and the disc brake caliper, the first edge includes a restriction portion that extends in an axial direction of the disc brake rotor, and the restriction portion is configured to be contactable with at least one of the bicycle frame and the disc brake caliper to restrict rotation of the rotor cover. ### Claim 15 (depends on 8) The rotor cover according to claim 8, wherein the cover portion includes a second edge facing at least one of the bicycle frame and the disc brake caliper when the rotor cover is positioned relative to the bicycle frame, and the second edge includes a flexible portion that is bent by contacting at least one of the bicycle frame and the disc brake caliper. ### Claim 16 (depends on 8) The rotor cover according to claim 8, further comprising: an elastic portion configured to be contactable with the cover portion and at least one of the bicycle frame and the disc brake caliper. ### Claim 17 (depends on 1) The rotor cover according to claim 1, further comprising: a vibration absorption member arranged on the cover portion. ### Claim 18 (depends on 1) The rotor cover according to claim 1, wherein the cover portion includes a circumferential part configured to at least partially cover a circumferential edge of the disc brake rotor at a radially outer side of the disc brake rotor, and a side surface part covering a side surface of the disc brake rotor that is opposite to a bicycle wheel, and the circumferential part is thicker than the disc brake rotor. ### Claim 19 (depends on 1) The rotor cover according to claim 1, wherein the coupling part includes at least one projection that projects from the annular part in the axial direction.