# US 10,766,564 B2 · Protection device for disc brakes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,766,564 B2 - Document ID: US10766564B2 - Status: Granted - Kind: B2 - Application number: 15/768,930 - Filed: 2016-10-25 - Published: 2019-02-21 - Granted: 2020-09-08 - Earliest claimed: 2015-10-26 - Applicants: Angelo Morelli - Inventors: Angelo Morelli - Web page: https://patentgrep.com/patent/US10766564B2 ## CPC - B62L 1/005: {constructional features of brake elements, e.g. fastening of brake blocks in their holders} - B62J 23/00: Other protectors specially adapted for cycles - B62L 1/00: Brakes {(back-pedalling brakes B62L5/00)}; Arrangements thereof - B62L: BRAKES SPECIALLY ADAPTED FOR CYCLES {(arrangements in cycles for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions B60T8/00)} - B62J: CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS ## Abstract A protection device (10, 10′, 10″) for disc brakes of velocipedes of the racing bike, mountain bike, city bike, electric pedal assisted cycle, and/or small motorcycle type, which comprises an interchangeable brake guard (12, 16, 18), secured to a wheel (20) of the velocipede, arrange coaxially to a disc (14) and featuring a basically “C”-like cross-sectional profile which comprises a front side (12′, 16′, 17) intended for covering a front surface of the disc (14), a rear side (12″, 16″, 17′) intended for partially covering a rear surface of the disc in correspondence with a brake track which pads of a brake caliper (28) act on, and an intermediate side (12′″, 16′″, 17″) intended for connecting the front side (12′, 16′, 17) and rear side (12″, 16″, 17′) to each other and for covering a peripheral circumferential edge of the disc (14). ## Claims ### Claim 1 A protection device (10, 10′, 10″) for disc brakes of velocipedes of the racing bike, mountain bike, city bike, electric pedal assisted cycle, and/or small motorcycle type, characterized in that it comprises an interchangeable brake guard (12, 16, 18), secured to a wheel (20) of the velocipede, arranged coaxially to a disc (14) and featuring a “C”-like cross-sectional profile which comprises a front side (12′, 16′, 17) for covering a front surface of the disc (14), a rear side (12″, 16″, 17′) for partially covering a rear surface of the disc in correspondence with a brake track onto which pads of a brake caliper (28) act on, and an intermediate side (12′″, 16′″, 17″) for connecting said front side (12′, 16′, 17) and rear side (12″, 16″, 17′) to each other and for covering a peripheral circumferential edge of the disc (14), said brake guard (12, 16, 18) comprising a central opening or hole (13, 15, 29) shaped for a quick coupling and an anti-rotation of said brake guard with respect to an axle (40) of a hub (42) of the wheel (20) which the protection device is secured to. ### Claim 2 (depends on 1) The protection device according to claim 1, characterized in that the brake guard (12) features a sector-of-a-circle development with an opening alpha (α) ranging from 45° to 180° for a partial coverage of the disc (14). ### Claim 3 (depends on 2) The device according to claim 2, characterized in that the protection device comprises a further brake guard (50, 56) featuring a sector-of-a-circle development with an opening angle complementary to that of the brake guard (12, 16) and such as to be applied to said brake guard (12, 16) whenever the wheel is dismantled from the frame of the bike to implement a total coverage of the disc (14). ### Claim 4 (depends on 1) The protection device according to claim 1, characterized in that the brake guard (16) features a sector-of-a-circle development with an opening angle beta (β) ranging from 270° to 320°. ### Claim 5 (depends on 3) The device according to claim 3, characterized in that the protection device comprises a further brake guard (50, 56) featuring a sector-of-a-circle development with an opening angle complementary to that of the brake guard (12, 16) and such as to be applied to said brake guard (12, 16) whenever the wheel is dismantled from the frame of the bike to implement a total coverage of the disc (14). ### Claim 6 (depends on 1) The protection device according to claim 1, characterized in that the brake guard (18) comprises a first portion (18′) coaxial to the disc (14) suitable for realizing a partial coverage of the disc (14), and a second portion (18″) defined by a sector-of-a-circle coaxial to said first portion (18′) and slidable with respect to said first portion. ### Claim 7 (depends on 6) The protection device according to claim 6, characterized in that said second portion (18″) defines a small door to close said brake guard (18) slidable by means of a threaded pawl (30) secured to said second portion (18″) and slidable in a slot or opening (32) cut in the front side (17) of said first portion (18′). ### Claim 8 (depends on 7) The protection device according to claim 7, characterized in that the second portion (18″) is slidable with respect to said first portion (18′) of said brake guard (18) by means of a threaded pawl (34) slidable in a slot cut along the intermediate side (17′) of the first portion (18′) which covers the peripheric circumferential edge of the brake disc (14). ### Claim 9 (depends on 7) The protection device according to claim 7, characterized in that the protection device comprises a spring co-operating with said second portion (18″) to accompany the sliding movement of the second portion (18″) with respect to the first portion (18′) of the brake guard (18). ### Claim 10 (depends on 6) The protection device according to claim 6, characterized in that the second portion (18″) is slidable with respect to said first portion (18′) of said brake guard (18) by means of a threaded pawl (34) slidable in a slot cut along the intermediate side (17′) of the first portion (18′) which covers the peripheric circumferential edge of the brake disc (14). ### Claim 11 (depends on 10) The protection device according to claim 10, characterized in that the protection device comprises a spring co-operating with said second portion (18″) to accompany the sliding movement of the second portion (18″) with respect to the first portion (18′) of the brake guard (18). ### Claim 12 (depends on 6) The protection device according to claim 6, characterized in that the protection device comprises a spring co-operating with said second portion (18″) to accompany the sliding movement of the second portion (18″) with respect to the first portion (18′) of the brake guard (18). ### Claim 13 (depends on 1) The device according to claim 1, characterized in that it comprises a further brake guard (50, 56) featuring a sector-of-a-circle development with an opening angle complementary to that of the brake guard (12, 16) and such as to be applied to said brake guard (12, 16) whenever the wheel is dismantled from the frame of the bike to implement a total coverage of the disc (14). ### Claim 14 (depends on 13) The device according to claim 13, characterized in that the coupling between the brake guard (12, 16) and the further brake guard (50, 56) is implemented by way of coupling/retention means via a removable constraining action. ### Claim 15 (depends on 1) The protection device according to claim 1, characterized in that the brake guard (12, 16, 18) is rigidly secured to one end of the axle (40) contained in the hub (42) of the wheel (20) which the disc (14) is secured to, said hub (42) rotating free with respect to its respective axle (40). ### Claim 16 (depends on 1) The protection device according to claim 1, characterized in that the brake guard (12, 16, 18) is secured to a flange rigidly stabilized to the axle (40) by a threading.