# US 2018/0320745 A1 · Bicycle brake disc assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0320745 A1 - Document ID: US20180320745A1 - Status: Published application - Kind: A1 - Application number: 15/964,667 - Filed: 2018-04-27 - Published: 2018-11-08 - Earliest claimed: 2017-05-02 - Assignees: Campagnolo S.r.l. - Applicants: Campagnolo S.r.l. - Inventors: Nicola ZANELLA; Flavio FUSARI - Web page: https://patentgrep.com/patent/US20180320745A1 ## CPC - F16D 65/123: {comprising an annular disc secured to a hub member; Discs characterised by means for mounting} - B60B 27/0052: {the element being a brake disc} - B60B 27/023: {specially adapted for bicycles} - B62L 1/005: {constructional features of brake elements, e.g. fastening of brake blocks in their holders} - F16D 2065/1316: {radially segmented} - F16D 2065/1356: {interlocking} - F16D 2065/1384: {to wheel hub} - F16D 2069/004: {Profiled friction surfaces, e.g. grooves, dimples} - F16D 2250/0084: Assembly or disassembly - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES - B60B: VEHICLE WHEELS (making wheels or wheel parts by rolling B21H1/00, by forging, hammering or pressing B21K1/28); CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION - 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 bicycle brake disc assembly has a brake disc and a hub body that has a portion for connection to the brake disc. The hub body includes a radially outer portion provided with a plurality of stops arranged at different axial distances from an axial end of the hub body. The brake disc includes a central portion provided with an opening for at least partially receiving the connection portion of the hub body and for securing the brake disc to the hub body. The brake disc also has a protuberance configured to selectively contact one of said stops of the hub body. ## Claims ### Claim 1 A bicycle brake disc assembly comprising a brake disc and a hub body comprising a connection portion to said brake disc, wherein said hub body comprises a radially outer portion provided with a plurality of stop areas arranged at different axial distances from an axial end of the hub body, said brake disc comprising a central portion equipped with an opening to at least partially receive said connection portion of the hub body and to secure in rotation said brake disc to said hub body, said brake disc further comprising a protuberance configured to selectively contact one of said stop areas of the hub body. ### Claim 2 (depends on 1) The brake disc assembly according to claim 1, wherein said brake disc comprises a plurality of protuberances circumferentially aligned and equally spaced and wherein said hub body comprises a plurality of stop areas for each protuberance, said stop areas being circumferentially aligned. ### Claim 3 (depends on 2) The brake disc assembly according to claim 2, wherein an angular distance between two identical stop areas belonging to two circumferentially adjacent pluralities of stop areas is equal to an angular distance between two circumferentially adjacent protuberances. ### Claim 4 (depends on 2) The brake disc assembly according to claim 2, wherein said protuberances have identical dimensions in an axial direction. ### Claim 5 (depends on 2) The brake disc assembly according to any of claim 2, wherein said protuberances have identical dimensions in a circumferential direction. ### Claim 6 (depends on 1) The brake disc assembly according to claim 1, wherein the difference between the distance between an axially outermost stop area and an axially innermost stop area of a same plurality of stop areas is comprised between about 0.025 mm and about 2.000 mm. ### Claim 7 (depends on 2) The brake disc assembly according to claim 2, wherein each stop area comprises an insertion opening for said protuberance, at least one shoulder directed axially and a stop wall configured to be contacted by the protuberance of the brake disc, said stop walls of each stop area of a same plurality of stop areas being preferably arranged in succession forming a single inclined plane and said protuberances of the brake disc comprising an axial end preferably countershaped to said single inclined plane. ### Claim 8 (depends on 7) The brake disc assembly according to claim 7, wherein each stop area comprises two shoulders that extend between said insertion opening and said stop wall, said two shoulders being parallel to one another and circumferentially spaced by a distance equal to a circumferential extension of the protuberance configured to engage the stop area or being circumferentially spaced by a distance equal to a circumferential extension of the plurality of stop areas. ### Claim 9 (depends on 7) The brake disc assembly according to claim 7, wherein the stop walls of each stop area of a same plurality of stop areas are arranged along different circumferential planes that are parallel to each other. ### Claim 10 (depends on 8) The brake disc assembly according to claim 8, wherein said protuberances of the brake disc project radially inside said opening of the central portion; said shoulders extending axially for a distance at least equal to the axial dimension of the central portion of the brake disc. ### Claim 11 (depends on 7) The brake disc assembly according to claim 7, wherein said protuberances are arranged radially outside of said opening of the central portion. ### Claim 12 (depends on 1) The brake disc assembly according to claim 1, wherein said protuberances project axially from said central portion of the brake disc towards said plurality of stop areas. ### Claim 13 (depends on 11) The brake disc assembly according to claim 11, wherein said hub body comprises a plurality of protrusions interspersed with a plurality of grooves that extend axially outside and radially inside said stop areas; said opening of the central portion of the brake disc comprising a plurality of protrusions and of grooves matching said plurality of protrusions and of grooves of said hub body. ### Claim 14 A bicycle hub body comprising a portion configured for connection to a bicycle brake disc, said connection portion having a radially outer portion provided with a plurality of stop areas arranged at different axial distances from an end of the hub body, said stop areas of the hub body being configured to be selectively contacted by at least one protuberance of said brake disc. ### Claim 15 A bicycle brake disc comprising a central portion provided with an opening for at least partially receiving a connection portion of a hub body and for securing in rotation said brake disc to said hub body, said brake disc further comprising at least one protuberance configured to selectively contact at least one stop area of the hub body. ### Claim 16 (depends on 3) The brake disc assembly according to claim 3, wherein said protuberances have identical dimensions in an axial direction. ### Claim 17 (depends on 3) The brake disc assembly according to any of claim 3, wherein said protuberances have identical dimensions in a circumferential direction. ### Claim 18 (depends on 4) The brake disc assembly according to any of claim 4, wherein said protuberances have identical dimensions in a circumferential direction. ### Claim 19 (depends on 2) The brake disc assembly according to claim 2, wherein the difference between the distance between an axially outermost stop area and an axially innermost stop area of a same plurality of stop areas is comprised between about 0.025 mm and about 2.000 mm. ### Claim 20 A bicycle brake disc assembly comprising: a brake disc having a predetermined central opening that receives a hub body and a plurality of protuberances positioned for contact with said hub body; and said hub body has a connection portion with a plurality of stops arranged at different axial distances from an axial end of said hub body, whereby said brake disc receives said hub body with one of said protuberances in contact with at least one of said stops.