AUTOMOBILE PNEUMATIC RADIAL TIRE

• Main Author: KUWAYAMA ISAO
• Format: Patent
• Language: English; Japanese
• Published: 18.06.2020
• 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 an automobile pneumatic radial tire satisfied in both noise suppression properties and tire durability.SOLUTION: An automobile pneumatic radial tire includes a carcass striding in a toroidal manner between a pair of bead parts and composed of a ply of a radial array cord. A section width SW (mm) and an outer diameter OD (mm) of the tire satisfies a predetermined relational expression. On an inner surface of the tire, one or more noise suppression bodies are provided. The noise suppression body is provided at least in a center region and a shoulder region. When a thickness of the noise suppression body is measured in a direction orthogonal to the inner surface of the tire, a maximum thickness Ts in the shoulder region is larger than a maximum thickness Tc in the center region.SELECTED DRAWING: Figure 2 【課題】本発明は、制音性とタイヤ耐久性とを両立させた、乗用車用空気入りラジアルタイヤを提供することを目的とする。【解決手段】本発明の乗用車用空気入りラジアルタイヤは、一対のビード部間でトロイダル状に跨る、ラジアル配列コードのプライからなるカーカスを備え、前記タイヤの断面幅ＳＷ（ｍｍ）及び外径ＯＤ（ｍｍ）は、所定の関係式を満たし、前記タイヤの内面に、１つ以上の制音体を設け、前記制音体は、少なくとも、前記センター領域及び前記ショルダー領域に設けられ、前記制音体の前記タイヤの内面に直交する方向に計測した際の厚さは、前記ショルダー領域における最大厚さＴｓが、前記センター領域における最大厚さＴｃより厚い。【選択図】図２