# US 8,739,850 B2 · Pneumatic tire > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,739,850 B2 - Document ID: US8739850B2 - Status: Granted - Kind: B2 - Application number: 13/529,098 - Filed: 2012-06-21 - Published: 2013-01-03 - Granted: 2014-06-03 - Earliest claimed: 2011-06-28 - Assignees: The Yokohama Rubber Co., Ltd. - Applicants: Masahiro Ishida - Inventors: Masahiro Ishida - Web page: https://patentgrep.com/patent/US8739850B2 ## CPC - B60C 13/001: {Decorating, marking or the like} - B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES ## Abstract A side wall portion including, in a specific region in a tire radial direction, a decorative region including two or more decorative portions that are continuously disposed so as to be contiguous in a tire circumferential direction, the decorative portions including multiple convex ridges that are disposed on an outer surface so as to be adjacent in the tire circumferential direction. The ridges in the same decorative portion have a same ridge arrangement angle, and the ridge arrangement angle of the contiguous decorative portion differs therefrom not less than 20° and not more than 160°. In all regions in the tire circumferential direction, at least one side in the tire radial direction of the decorative portion overlaps with the contiguous decorative portion. A distance between a first imaginary boundary line and a second imaginary boundary line is less than 1 mm. ## Claims ### Claim 1 A pneumatic tire comprising a tread portion, a side wall portion, and a bead portion, wherein the side wall portion comprises, in a specific region in a tire radial direction, a decorative region including three or more decorative portions that are continuously disposed so as to be contiguous in a tire circumferential direction, the decorative portions including multiple convex ridges that are disposed on an outer surface so as to be adjacent in the tire circumferential direction and the decorative region includes not less than three types and not more than nine types of the decorative portions having different ridge arrangement angles; a ridge arrangement angle, which is an angle formed by the ridges and a line tangent to the decorative region at an edge of an inner side in the tire radial direction, is the same in the same decorative portion, and a ridge arrangement angle of the contiguous decorative portion differs therefrom not less than 20° and not more than 160°; in all regions in the tire circumferential direction, at least one side in the tire radial direction of the decorative portion overlaps with the contiguous decorative portion; a first imaginary boundary line joining end portions of the ridges of the decorative portion that are on a side adjacent to the contiguous decorative portion and a second imaginary boundary line joining end portions of the ridges of the contiguous decorative portion on a side adjacent to the first imaginary boundary line extend from an inner side edge to an outer side edge in the tire radial direction, and a distance between the first imaginary boundary line and the second imaginary boundary line is less than 1 mm; and the ridges of the decorative portion are separated from the ridges of the contiguous decorative portion. ### Claim 2 (depends on 1) The pneumatic tire according to claim 1, wherein a plurality of the decorative portions is disposed in the decorative region in the tire circumferential direction, in order of stepwise ascending or descending size of the ridge arrangement angle. ### Claim 3 (depends on 1) The pneumatic tire according to claim 1, wherein in the decorative region, an angle formed by an end portion on an inner side in the tire radial direction of the first imaginary boundary line of the decorative portion and an end portion on the inner side in the tire radial direction of the first imaginary boundary line of the contiguous decorative portion is not more than 10°. ### Claim 4 (depends on 1) The pneumatic tire according to claim 1, wherein at least one of the decorative portions included in the decorative region has an arrangement pitch different than the arrangement pitch of the ridges included in the decorative portions. ### Claim 5 (depends on 1) The pneumatic tire according to claim 1, wherein ridges are not formed between the first imaginary boundary line and the second imaginary boundary line in the decorative region. ### Claim 6 (depends on 1) The pneumatic tire according to claim 1, wherein the first imaginary boundary line and the second imaginary boundary line overlap in the decorative region. ### Claim 7 A pneumatic tire comprising a tread portion, a side wall portion, and a bead portion, wherein the side wall portion comprises, in a specific region in a tire radial direction, a decorative region including two or more decorative portions that are continuously disposed so as to be contiguous in a tire circumferential direction, the decorative portions including multiple convex ridges that are disposed on an outer surface so as to be adjacent in the tire circumferential direction; a ridge arrangement angle, which is an angle formed by the ridges and a line tangent to the decorative region at an edge of an inner side in the tire radial direction, is the same in the same decorative portion, and a ridge arrangement angle of the contiguous decorative portion differs therefrom not less than 20° and not more than 160°; in all regions in the tire circumferential direction, at least one side in the tire radial direction of the decorative portion overlaps with the contiguous decorative portion; a first imaginary boundary line joining end portions of the ridges of the decorative portion that are on a side adjacent to the contiguous decorative portion and a second imaginary boundary line joining end portions of the ridges of the contiguous decorative portion on a side adjacent to the first imaginary boundary line extend from an inner side edge to an outer side edge in the tire radial direction, and a distance between the first imaginary boundary line and the second imaginary boundary line is less than 1 mm; the ridges of the decorative portion are separated from the ridges of the contiguous decorative portion; and in the decorative region, an angle formed by an end portion on an inner side in the tire radial direction of the first imaginary boundary line of the decorative portion and an end portion on the inner side in the tire radial direction of the first imaginary boundary line of the contiguous decorative portion is not more than 10°. ### Claim 8 (depends on 7) The pneumatic tire according to claim 7, wherein a plurality of the decorative portions is disposed in the decorative region in the tire circumferential direction, in order of stepwise ascending or descending size of the ridge arrangement angle. ### Claim 9 (depends on 8) The pneumatic tire according to claim 8, wherein the decorative region includes not less than three types and not more than nine types of the decorative portions having different ridge arrangement angles. ### Claim 10 (depends on 7) The pneumatic tire according to claim 7, wherein at least one of the decorative portions included in the decorative region has an arrangement pitch different than the arrangement pitch of the ridges included in the decorative portions. ### Claim 11 (depends on 7) The pneumatic tire according to claim 7, wherein ridges are not formed between the first imaginary boundary line and the second imaginary boundary line in the decorative region. ### Claim 12 (depends on 7) The pneumatic tire according to claim 7, wherein the first imaginary boundary line and the second imaginary boundary line overlap in the decorative region. ### Claim 13 A pneumatic tire comprising a tread portion, a side wall portion, and a bead portion, wherein the side wall portion comprises, in a specific region in a tire radial direction, a decorative region including two or more decorative portions that are continuously disposed so as to be contiguous in a tire circumferential direction, the decorative portions including multiple convex ridges that are disposed on an outer surface so as to be adjacent in the tire circumferential direction; a ridge arrangement angle, which is an angle formed by the ridges and a line tangent to the decorative region at an edge of an inner side in the tire radial direction, is the same in the same decorative portion, and a ridge arrangement angle of the contiguous decorative portion differs therefrom not less than 20° and not more than 160°; in all regions in the tire circumferential direction, at least one side in the tire radial direction of the decorative portion overlaps with the contiguous decorative portion; a first imaginary boundary line joining end portions of the ridges of the decorative portion that are on a side adjacent to the contiguous decorative portion and a second imaginary boundary line joining end portions of the ridges of the contiguous decorative portion on a side adjacent to the first imaginary boundary line extend from an inner side edge to an outer side edge in the tire radial direction, and a distance between the first imaginary boundary line and the second imaginary boundary line is less than 1 mm; the first imaginary boundary line and the second imaginary boundary line overlap in the decorative region; and the ridges of the decorative portion are separated from the ridges of the contiguous decorative portion. ### Claim 14 (depends on 13) The pneumatic tire according to claim 13, wherein a plurality of the decorative portions is disposed in the decorative region in the tire circumferential direction, in order of stepwise ascending or descending size of the ridge arrangement angle. ### Claim 15 (depends on 14) The pneumatic tire according to claim 14, wherein in the decorative region, an angle formed by an end portion on an inner side in the tire radial direction of the first imaginary boundary line of the decorative portion and an end portion on the inner side in the tire radial direction of the first imaginary boundary line of the contiguous decorative portion is not more than 10°. ### Claim 16 (depends on 15) The pneumatic tire according to claim 15, wherein the decorative region includes not less than three types and not more than nine types of the decorative portions having different ridge arrangement angles. ### Claim 17 (depends on 13) The pneumatic tire according to claim 13, wherein at least one of the decorative portions included in the decorative region has an arrangement pitch different than the arrangement pitch of the ridges included in the decorative portions. ### Claim 18 (depends on 13) The pneumatic tire according to claim 13, wherein ridges are not formed between the first imaginary boundary line and the second imaginary boundary line in the decorative region. ### Claim 19 A pneumatic tire comprising a tread portion, a side wall portion, and a bead portion, wherein the side wall portion comprises, in a specific region in a tire radial direction, a decorative region including two or more decorative portions that are continuously disposed so as to be contiguous in a tire circumferential direction, the decorative portions including multiple convex ridges that are disposed on an outer surface so as to be adjacent in the tire circumferential direction; a ridge arrangement angle, which is an angle formed by the ridges and a line tangent to the decorative region at an edge of an inner side in the tire radial direction, is the same in the same decorative portion, and a ridge arrangement angle of the contiguous decorative portion differs therefrom not less than 20° and not more than 160°; in all regions in the tire circumferential direction, at least one side in the tire radial direction of the decorative portion overlaps with the contiguous decorative portion; a first imaginary boundary line joining end portions of the ridges of the decorative portion that are on a side adjacent to the contiguous decorative portion and a second imaginary boundary line joining end portions of the ridges of the contiguous decorative portion on a side adjacent to the first imaginary boundary line extend from an inner side edge to an outer side edge in the tire radial direction, and a distance between the first imaginary boundary line and the second imaginary boundary line is less than 1 mm; the ridges of the decorative portion are separated from the ridges of the contiguous decorative portion; and ridges are formed between the first imaginary boundary line and the second imaginary boundary line in the decorative region. ### Claim 20 (depends on 19) The pneumatic tire according to claim 19, wherein the decorative region includes not less than three types and not more than nine types of the decorative portions having different ridge arrangement angles.