TIRE

• Main Authors: MATSUMOTO KYOHEI, WU QIAN
• Format: Patent
• Language: English; Japanese
• Published: 07.12.2023
• Subjects: DEVICES OR ARRANGEMENTS RELATED TO TYRES; PERFORMING OPERATIONS; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; VEHICLE TYRES; VEHICLES IN GENERAL

To provide a tire which can be made lightweight, and yet can maintain plunger durability, furthermore is improved in steering stability.SOLUTION: A tire 100 is provided, comprising: a belt 60 constituted of at least two belt layers 60A, 60B arranged in a tread portion 30; and belt reinforcing layers 70A, 70B arranged in an outside in a tire diameter direction, of the belt 60. In the tire 100, the belt layers 60A, 60B and the belt reinforcing layers 70A, 70B are formed by coating reinforcing material by elastomer, the reinforcing material of the belt layers 60A, 60B are metal monofilaments each having a filament diameter d of less than 0.30 mm, and each of the reinforcing material of the belt reinforcing layers 70A, 70B is an organic fiber cord having a cutting strength of 6.5 cN/dtex or more, a breaking elongation of 10% or more, and an elastic modulus at 7% elongation of 6.0 mN/(dtex %) or more.SELECTED DRAWING: Figure 1 【課題】軽量化しつつも、プランジャー耐久性を維持でき、更には、操縦安定性を向上させたタイヤを提供する。【解決手段】トレッド部３０に配置した少なくとも二枚のベルト層６０Ａ，６０Ｂからなるベルト６０と、該ベルト６０のタイヤ径方向外側に配置したベルト補強層７０Ａ，７０Ｂと、を具えるタイヤ１００において、前記ベルト層６０Ａ，６０Ｂ及び前記ベルト補強層７０Ａ，７０Ｂは、補強材をエラストマーで被覆してなり、前記ベルト層６０Ａ，６０Ｂの補強材は、フィラメント径ｄが０．３０ｍｍ未満の金属モノフィラメントであり、前記ベルト補強層７０Ａ，７０Ｂの補強材は、切断強度が６．５ｃＮ／ｄｔｅｘ以上、切断伸度が１０％以上、且つ７％伸長時の弾性率が６．０ｍＮ／（ｄｔｅｘ・％）以上の有機繊維コードであることを特徴とする、タイヤで１００ある。【選択図】図１