To provide a heavy duty tire 2 that can achieve formation of a good communication environment and reduction of the risk of damage to an RFID tag while suppressing influence on durability.SOLUTION: A tire 2 includes a pair of beads 10, a carcass 12, a pair of steel reinforcing layers 20, a pair of fiber reinforcing layers 26, and a tag member 28. Each bead 10 includes an apex 40. A carcass ply 48 included in the carcass 12 includes a ply body 50 and a pair of turned-up portions 52. An outer end PR1 of each fiber reinforcing layer 26 is located between an end PF of the turned-up portion 52 and an outer end PA of the apex 40. An RFID tag 62 of the tag member 28 is located between the end PF of the turned-up portion 52 and the outer end PA of the apex 40. In the fiber reinforcing layer 26, an outer end 60f of a second reinforcing ply 60 is located radially outward of an outer end 58f of a first reinforcing ply 58.SELECTED DRAWING: Figure 2
【課題】耐久性への影響を抑制しつつ、良好な通信環境の形成及びRFIDタグの損傷リスクの低減を達成できる、重荷重用タイヤ2の提供。【解決手段】タイヤ2は、一対のビード10と、カーカス12と、一対のスチール補強層20と、一対の繊維補強層26と、タグ部材28とを備える。ビード10はエイペックス40を備える。カーカス12を構成するカーカスプライ48は、プライ本体50と、一対の折り返し部52とを備える。繊維補強層26の外端PR1は、折り返し部52の端PFとエイペックス40の外端PAとの間に位置する。タグ部材28のRFIDタグ62は、折り返し部52の端PFと、エイペックス40の外端PAとの間に位置する。繊維補強層26において、第二補強プライ60の外端60fは第一補強プライ58の外端58fの径方向外側に位置する。【選択図】図2
HEAVY DUTY TIRE
重荷重用タイヤ
11.01.2024
Patent
Elektronische Ressource
Japanisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |