# US 12,214,682 B2 · Tire/wheel assembly and tire > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,214,682 B2 - Document ID: US12214682B2 - Status: Granted - Kind: B2 - Application number: 17/628,568 - Filed: 2020-07-22 - Published: 2022-08-18 - Granted: 2025-02-04 - Earliest claimed: 2019-07-25 - Assignees: Bridgestone Corporation - Applicants: Bridgestone Corporation - Inventors: Isao Kuwayama - Web page: https://patentgrep.com/patent/US12214682B2 ## CPC - B60L 53/12: Inductive energy transfer - B60B 21/12: Appurtenances, e.g. lining bands - B60C 13/00: Tyre sidewalls; Protecting, decorating, marking, or the like, thereof (B60C17/08 takes precedence; tyre shoulders B60C11/01; removable tyre sidewall trim rings B60B7/01) - B60C 19/00: Tyre parts or constructions not otherwise provided for - B60L 9/00: Electric propulsion with power supply external to the vehicle (electric propulsion for monorail vehicles, suspension vehicles or rack railways B60L13/00; in combination with batteries or fuel cells within the vehicle B60L50/53) - H02J 50/10: using inductive coupling - B60B 2360/00: Materials; Physical forms thereof - B60C 2013/007: {Thickness} - B60K 7/0007: {the motor being electric} - B60K 2007/0038: {the motor moving together with the wheel axle} - B60K 2007/0092: {the motor axle being coaxial to the wheel axle} - B60Y 2400/61: Arrangements of controllers for electric machines, e.g. inverters - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors - Y02T 90/14: Plug-in electric vehicles - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - 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 - B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A tire/wheel assembly includes a wheel including a disk and a rim, the wheel having a power reception device attached to an outer peripheral surface of the rim to receive electric power supplied wirelessly from farther outward in a radial direction of the wheel than the rim, and a tire attached so as to cover an outer peripheral surface of the wheel and including a pair of sidewall portions. A gauge of the sidewall portions is 1.5 mm or more. ## Claims ### Claim 1 A tire/wheel assembly comprising: a wheel comprising a disk and a rim; wherein the wheel includes a power reception device attached to an outer peripheral surface of the rim to receive electric power supplied wirelessly from farther outward in a radial direction of the wheel than the rim; and a tire attached so as to cover an outer peripheral surface of the wheel and comprising a tread portion and a pair of sidewall portions; wherein a gauge of the sidewall portions is 1.5 mm or more, the tread portion is formed only of a non-magnetic material and the pair of the sidewall portions comprises a magnetic material, the tire/wheel assembly further comprises a relay coil disposed on an inner peripheral surface of the rim, the rim comprises a through hole for wiring that electrically connects the power reception device and the relay coil to transmit the electric power received by the power reception device to the relay coil, the relay coil is configured to transmit the electric power inward in the radial direction of the wheel, and the wheel further includes an internal power reception coil positioned inward of the relay coil in the radial direction of the wheel, the internal power reception coil being configured to receive the electric power supplied wirelessly from the relay coil. ### Claim 2 (depends on 1) The tire/wheel assembly of claim 1, wherein the rim is formed of a non-magnetic material. ### Claim 3 (depends on 1) The tire/wheel assembly of claim 1, wherein the power reception device is configured to receive electric power supplied by an electromagnetic induction method. ### Claim 4 A tire/wheel assembly comprising: a wheel comprising a disk and a rim; wherein the wheel includes a core attached to an outer peripheral surface of the rim; and a power reception device attached to an outer peripheral surface of the core to receive electric power supplied wirelessly from farther outward in a radial direction of the wheel than the core; and a tire attached so as to cover an outer peripheral surface of the wheel and comprising a tread portion and a pair of sidewall portions; wherein a gauge of the sidewall portions is 1.5 mm or more, the tread portion is formed only of a non-magnetic material and the pair of the sidewall portions comprises a magnetic material, the tire/wheel assembly further comprises a relay coil disposed on an inner peripheral surface of the rim, the rim comprises a through hole for wiring that electrically connects the power reception device and the relay coil to transmit the electric power received by the power reception device to the relay coil, the relay coil is configured to transmit the electric power inward in the radial direction of the wheel, and the wheel further includes an internal power reception coil positioned inward of the relay coil in the radial direction of the wheel, the internal power reception coil being configured to receive the electric power supplied wirelessly from the relay coil.