TIRE WITH IMPROVED BEAD STRUCTURE

To provide a tire with an improved bead structure which is light without sacrificing strength and which overcomes problems such as creep under load and fretting.SOLUTION: A pneumatic radial tire has: a bead portion provided with a bead core 30 therein; a first layer of a plurality of sheath wires 35...

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Bibliographic Details
Main Author UEYOKO KIYOSHI
Format Patent
LanguageEnglish
Japanese
Published 28.06.2022
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
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Summary:To provide a tire with an improved bead structure which is light without sacrificing strength and which overcomes problems such as creep under load and fretting.SOLUTION: A pneumatic radial tire has: a bead portion provided with a bead core 30 therein; a first layer of a plurality of sheath wires 35 surrounding the bead core 30; and a second layer formed of a plurality of sheath wires 37 surrounding the first layer, where the sheath wires 37 of the second layer have a diameter C less than the sheath wires 35 of the first layer.SELECTED DRAWING: Figure 3 【課題】強度を犠牲にすることなく軽量であり、荷重下のクリープやフレッチングなどの問題を克服する、ビード構造が改良されたタイヤを提供する。【解決手段】ビードコア３０が内部に設けられたビード部と、前記ビードコア３０を囲む複数のシースワイヤ線３５の第１の層と、前記第１の層を囲む複数のシース線３７から形成された第２の層とを有し、前記第２の層のシースワイヤ線３７は、前記第１の層のシースワイヤ線３５よりも小さい直径Ｃを有する空気入りラジアルタイヤ。【選択図】図３
Bibliography:Application Number: JP20210197657