Pneumatic tire
A pneumatic tire including: a tire body; and a communication device embedded in the tire body or attached to an inner surface of the tire body. The communication device includes a flat antenna, and the communication device is disposed so that an antenna in-plane direction that is perpendicular to the thickness direction of the flat antenna is along an outer surface of the tire body.
1 . A pneumatic tire comprising:
a tire body; and
a communication device embedded in the tire body, wherein
the communication device comprises a flat antenna,
the communication device is disposed so that an antenna in-plane direction that is perpendicular to the thickness direction of the flat antenna is along an outer surface of the tire body,
the flat antenna is a flat wire antenna, extending in a meandering, wavy-shaped, or zigzag shape along the antenna in-plane direction,
the communication device is embedded in a sidewall portion of the tire body in one direction along the tire radial direction relative to a turn-up end of a carcass, and
a tip of the flat wire antenna is not disposed at a position corresponding to an end of the flat wire antenna in the other direction along the tire radial direction.
2 . The pneumatic tire according to claim 1 , wherein
the communication device further comprises:
a substrate including an IC chip; and
an outer body configured to hold the flat antenna and the substrate on a holding surface, wherein
the communication device is disposed so that the holding surface of the outer body faces the side of the outer surface of the tire body.
3 . The pneumatic tire according to claim 1 , wherein
the communication device further comprises:
a substrate including an IC chip; and
an outer body configured to hold the flat antenna and the substrate on a holding surface, wherein
the communication device is disposed so that a surface of an opposite side to the holding surface of the outer body faces the side of the outer surface of the tire body.
4 . The pneumatic tire according to claim 1 , wherein the tip of the flat wire antenna terminates facing the one direction along the tire radial direction.
5 . The pneumatic tire according to claim 2 , wherein the tip of the flat wire antenna terminates facing the one direction along the tire radial direction.
6 . The pneumatic tire according to claim 3 , wherein the tip of the flat wire antenna terminates facing the one direction along the tire radial direction.