# US 2014/0152080 A1 · Bicycle rim > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0152080 A1 - Document ID: US20140152080A1 - Status: Published application - Kind: A1 - Application number: 13/705,335 - Filed: 2012-12-05 - Published: 2014-06-05 - Earliest claimed: 2012-12-05 - Assignees: Shimano Inc. - Inventors: Kazuki KOSHIYAMA - Web page: https://patentgrep.com/patent/US20140152080A1 ## CPC - B60B 21/10: characterised by the form of tyre-seat or flange, e.g. corrugated (B60B21/02 takes precedence) - B60B 1/003: {specially adapted for bicycles (B60B1/041 takes precedence)} - B60B 21/025: {the transverse section being hollow} - B60B 21/04: with substantially radial flanges (with rail-engaging flanges B60B17/00 ){(B60B21/021 takes precedence)} - B60B 21/104: {the shape of flanges} - B60Y 2200/13: Bicycles; Tricycles - 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 - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY ## Abstract A bicycle rim includes a first annular side wall, a second annular side wall and an annular bridge extending between the first and second annular side walls. The annular bridge has an annular tire support surface extending between the first and second annular sidewalls. The annular tire support surface has a first projection. The first projection has at least one first portion and at least one second portion. The second portion has a different size from the first portion. ## Claims ### Claim 1 A bicycle rim comprising: a first annular side wall; a second annular side wall; and an annular bridge extending between the first and second annular side walls, the annular bridge having an annular tire support surface extending between the first and second annular sidewalls, the annular tire support surface having a first projection, the first projection having at least one first portion and at least one second portion, and the second portion having a different size from the first portion. ### Claim 2 (depends on 1) The bicycle rim according to claim 1, wherein the second portion has a projecting height different from a projecting height of the first portion, the projecting heights being measured radially from a tire seat section of the annular tire support surface. ### Claim 3 (depends on 2) The bicycle rim according to claim 2, wherein the projecting height of the second portion is at least two times the projecting height of the first portion. ### Claim 4 (depends on 1) The bicycle rim according to claim 1, wherein the second portion has a projecting width different from a projecting width of the first portion, the projecting widths being measured axially. ### Claim 5 (depends on 4) The bicycle rim according to claim 4, wherein the projecting width of the second portion is at least two times the projecting width of the first portion. ### Claim 6 (depends on 1) The bicycle rim according to claim 1, wherein a circumferential length of the at least one second portion is the same as a circumferential length of the at least one first portion. ### Claim 7 (depends on 1) The bicycle rim according to claim 1, wherein a circumferential length of the at least one second portion is different from a circumferential length of the at least one first portion. ### Claim 8 (depends on 7) The bicycle rim according to claim 7, wherein the circumferential length of the at least one second portion is shorter than the circumferential length of the at least one first portion. ### Claim 9 (depends on 1) The bicycle rim according to claim 1, wherein the first projection has a plurality of the first portions and a plurality of the second portions. ### Claim 10 (depends on 9) The bicycle rim according to claim 9, wherein the first and second portions are disposed to circumferentially alternate with each other. ### Claim 11 (depends on 9) The bicycle rim according to claim 9, wherein a combination of the first and second portions extend about an entire circumference of the annular tire support surface. ### Claim 12 (depends on 9) The bicycle rim according to claim 9, wherein an overall circumferential length of the second portions is the same as an overall circumferential length of the first portions. ### Claim 13 (depends on 9) The bicycle rim according to claim 9, wherein an overall circumferential length of the second portions is different from an overall circumferential length of the first portions. ### Claim 14 (depends on 13) The bicycle rim according to claim 13, wherein the overall circumferential length of the second portions is shorter than the overall circumferential length of the first portions. ### Claim 15 (depends on 1) The bicycle rim according to claim 1, wherein the annular tire support surface has a second projection, the second projection having at least one third portion and at least one fourth portion, and the fourth portion has a different size from the third portion. ### Claim 16 (depends on 15) The bicycle rim according to claim 15, wherein the third portion has a projecting height different from a projecting height of the fourth portion, the projecting heights being measured radially from a tire seat section of the annular tire support surface. ### Claim 17 (depends on 15) The bicycle rim according to claim 15, wherein the third portion has a projecting width different from a projecting width of the fourth portion, the projecting widths being measured axially. ### Claim 18 (depends on 15) The bicycle rim according to claim 15, wherein the second portion is circumferentially aligned with the fourth portion. ### Claim 19 (depends on 15) The bicycle rim according to claim 15, wherein the second portion is circumferentially offset from the fourth portion. ### Claim 20 (depends on 15) The bicycle rim according to claim 15, wherein the annular tire support surface has recessed center disposed between the first and second projections, with the first and second projections being spaced from the first and second annular sidewalls, respectively. ### Claim 21 (depends on 20) The bicycle rim according to claim 20, wherein each of the first and second annular side walls has a clincher portion along an outer peripheral edge to form first and second tire bead receiving recesses between the clincher portions and the first and second projections. ### Claim 22 (depends on 15) The bicycle rim according to claim 15, wherein the first projection has a plurality of the first portions and a plurality of the second portions, and the second projection has a plurality of the third portions and a plurality of the fourth portions. ### Claim 23 (depends on 22) The bicycle rim according to claim 22, wherein the first and second portions of the first projection are disposed to circumferentially alternate with each other, and the third and fourth portions of the second projection are disposed to circumferentially alternate with each other. ### Claim 24 (depends on 22) The bicycle rim according to claim 22, wherein a combination of the first and second portions of the first projection extend about an entire circumference of the annular tire support surface, and a combination of the third and fourth portions of the second projection extend about an entire circumference of the annular tire support surface. ### Claim 25 (depends on 24) The bicycle rim according to claim 24, wherein the combination of the first and second portions is circumferentially align with the combination of the third and fourth portions. ### Claim 26 (depends on 24) The bicycle rim according to claim 24, wherein the combination of the first and second portions is circumferentially offset from the combination of the third and fourth portions. ### Claim 27 (depends on 15) The bicycle rim according to claim 15, wherein an overall circumferential length of the second portions of the first projection is the same as an overall circumferential length of the first portions of the first projection, and an overall circumferential length of the fourth portions of the second projection is the same as an overall circumferential length of the third portions of the second projection. ### Claim 28 (depends on 15) The bicycle rim according to claim 15, wherein an overall circumferential length of the second portions of the first projection is different from an overall circumferential length of the first portions of the first projection, and an overall circumferential length of the fourth portions of the second projection is different from an overall circumferential length of the third portions of the second projection. ### Claim 29 (depends on 28) The bicycle rim according to claim 28, wherein the overall circumferential length of the second portions of the first projection is shorter than the overall circumferential length of the first portions of the first projection, and the overall circumferential length of the fourth portions of the second projection is shorter than the overall circumferential length of the third portions of the second projection. ### Claim 30 (depends on 15) The bicycle rim according to claim 15, wherein an overall circumferential length of the second portions is the same as an overall circumferential length of the fourth portions. ### Claim 31 (depends on 15) The bicycle rim according to claim 15, wherein an overall circumferential length of the second portions is different from an overall circumferential length of the fourth portions. ### Claim 32 (depends on 31) The bicycle rim according to claim 31, wherein the overall circumferential length of the second portions is shorter than the overall circumferential length of the fourth portions.