US 12,350,976 B2
Tire
Kyung Hoon Chung, Seoul (KR)
Assigned to Nexen Tire Corporation, Yangsan-si (KR)
Filed by NEXEN TIRE CORPORATION, Yangsan-si (KR)
Filed on Nov. 2, 2022, as Appl. No. 18/052,135.
Claims priority of application No. 10-2021-0149990 (KR), filed on Nov. 3, 2021.
Prior Publication US 2023/0286332 A1, Sep. 14, 2023
Int. Cl. B60C 19/00 (2006.01); B60C 23/00 (2006.01); B60C 23/04 (2006.01)
CPC B60C 19/00 (2013.01) [B60C 23/0433 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A tire mounted on a transportation means, the tire comprising:
a tire body including a tread region that faces a surface of a road during at least the driving of the transportation means; and
an electromagnetic tag module disposed in the tire body and configured to transmit or receive one or more signals,
wherein the electromagnetic tag module includes an electromagnetic tag, a cover layer that is disposed on an inner side surface of the electromagnetic tag and separate from the tire body, and a radio wave guide layer disposed on an outer side surface of the electromagnetic tag opposite to the inner side surface,
wherein the outer side surface of the electromagnetic tag is closer to an outside of the tire than the inner side surface of the electromagnetic tag, wherein the inner side surface of the electromagnetic tag comprises an upper surface, a first side surface, and a second side surface, wherein the outer side surface of the electromagnetic tag comprises a lower surface, a third side surface extending from the first side surface, and a fourth side surface extending from the second side surface,
wherein the cover layer directly contacts and covers all of the upper surface, the first side surface, and the second side surface of the electromagnetic tag, wherein the radio wave guide layer directly contacts and covers all of the lower surface, the third side surface, and the fourth side surface of the electromagnetic tag, wherein the electromagnetic tag is disposed between the cover layer and the radio wave guide layer to be in close contact with the cover layer and the radio wave guide layer,
wherein each of the cover layer and the radio wave guide layer includes a base rubber, a reinforcing filler, and an insulating filler,
wherein the cover layer contains a larger amount of insulating filler than the radio wave guide layer, and
wherein the cover layer has a specific resistance of 4.0×1012 Ω·m or more, and the radio wave guide layer includes a rubber composition having a specific resistance 1.2×103 Ω·m or less.