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1. (WO2020004109) RUN-FLAT TIRE
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2020/004109 International Application No.: PCT/JP2019/023948
Publication Date: 02.01.2020 International Filing Date: 17.06.2019
IPC:
B60C 17/00 (2006.01) ,B60C 9/08 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
C
VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
17
Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
C
VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
9
Reinforcements or ply arrangement of pneumatic tyres
02
Carcasses
04
the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
08
the cords extend transversely from bead to bead, i.e. radial ply
Applicants:
株式会社ブリヂストン BRIDGESTONE CORPORATION [JP/JP]; 東京都中央区京橋三丁目1番1号 1-1, Kyobashi 3-chome, Chuo-ku, Tokyo 1048340, JP
Inventors:
山口 正志 YAMAGUCHI, Masashi; JP
Agent:
特許業務法人太陽国際特許事務所 TAIYO, NAKAJIMA & KATO; 東京都新宿区新宿4丁目3番17号 3-17, Shinjuku 4-chome, Shinjuku-ku, Tokyo 1600022, JP
Priority Data:
2018-12030225.06.2018JP
Title (EN) RUN-FLAT TIRE
(FR) PNEU À AFFAISSEMENT LIMITÉ
(JA) ランフラットタイヤ
Abstract:
(EN) This run-flat tire is provided with: a pair of bead cores; a carcass comprising a main body part that straddles the pair of bead cores, and a fold-back part where the bead core is folded back; a belt which is disposed outside of the carcass in the tire radial direction; side reinforcement rubber which is disposed inside of the carcass in the tire width direction; and a rim guard which is disposed on the outside surface of the tire and which limits collapse of the bead to outside of the tire in the axial direction during run-flat travel. The shape of a case line passing through the center of the carcass thickness is optimized, and the position of the apex of the rim guard is arranged in an optimal position.
(FR) Le pneu à affaissement limité de l'invention comprend : une paire de tringles; une carcasse comprenant une partie corps principal qui enjambe la paire de tringles, et une partie repliée dans laquelle la tringle est repliée; une ceinture disposée à l'extérieur de la carcasse dans le sens radial du pneu; caoutchouc de renforcement latéral qui est disposé à l'intérieur de la carcasse dans le sens de la largeur du pneu; et une protection de jante disposée sur la surface extérieure du pneu et limitant l'affaissement du talon vers l'extérieur du pneu dans le sens axial pendant un déplacement avec affaissement limité. La forme d'une ligne de carter traversant le centre de l'épaisseur de la carcasse est optimisée, et le sommet de la protection de jante se siitue dans une position optimale.
(JA) ランフラットタイヤは、一対のビードコアと、一対のビードコアを跨る本体部とビードコアを折り返される折返し部とを備えたカーカスと、カーカスのタイヤ径方向外側に設けられたベルトと、カーカスのタイヤ幅方向内側に設けられるサイド補強ゴムと、タイヤ外側面に設けられ、ランフラット走行時にビード部のタイヤ軸方向外側への倒れ込みを制限するリムガードを備えており、カーカスの厚みの中心を通るケースラインの形状が最適化されていると共に、リムガードの頂点の位置が最適な位置に配置されている。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)