To provide a pneumatic tire equipped with a bead filler to which multiple rubber layers are applied.SOLUTION: A pneumatic tire comprises: a side wall which is bent on both sides of a tread which is a thick robber layer directly contacting a road surface; a bead core mounted on a rim of a vehicle; and a bead part having a rubber hardness difference. The pneumatic tire further includes a carcass which turns up around the bead core of the bead part as an internal skeleton of a tire. The bead part includes: a first bead filler which is covered with the carcass inside the tire and the turned-up carcass; and a second bead filler which is located between an outside surface of the turned-up carcass, and the side wall and a rim cushion, and to which multiple rubber layers, which are configured from rubber layers of different properties so as to reduce a weight and improve a rolling resistance, are applied.SELECTED DRAWING: Figure 1
【課題】 多重ゴム層が適用されたビードフィラーを備える空気入りタイヤを提供すること。【解決手段】 路面に直接接する厚いゴム層であるトレッドの両側に屈曲したサイドウォールと、車両のリムに装着されるビードコアと、ゴムの硬度差を有するように備えられるビード部とを含む空気入りタイヤにおいて、タイヤの内部骨格として前記ビード部のビードコアを中心にターンアップされるように備えられるカーカスをさらに含み、前記ビード部は、タイヤの内側の前記カーカスとターンアップされたカーカスにより覆われる第1のビードフィラーと、前記ターンアップされたカーカスの外側面とサイドウォール及びリムクッションとの間に配置され、重量を低減して転がり抵抗を向上させるように異なる性質のゴム層で構成される多重ゴム層が適用される第2のビードフィラーとを含む。【選択図】図1
PNEUMATIC TIRE EQUIPPED WITH BEAD FILLER TO WHICH MULTIPLE RUBBER LAYERS ARE APPLIED
多重ゴム層が適用されたビードフィラーを備える空気入りタイヤ
2020-10-29
Patent
Electronic Resource
Japanese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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