PNEUMATIC TIRE AND METHOD OF MANUFACTURING THE SAME

To provide a pneumatic tire that has its sealant layer suppressed from varying in thickness as a sealant material has a reduced overlap region, and is improved in adhesion of a sound absorption layer to the sealant layer.SOLUTION: The pneumatic tire comprises a sealant layer 60 arranged on a tire in...

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1. Verfasser: MATSUNOBU YUKO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a pneumatic tire that has its sealant layer suppressed from varying in thickness as a sealant material has a reduced overlap region, and is improved in adhesion of a sound absorption layer to the sealant layer.SOLUTION: The pneumatic tire comprises a sealant layer 60 arranged on a tire inner bore side of an inner liner 50, and a sound absorption layer 70 arranged on a tire inner bore side of the sealant layer 60. The sealant layer 60 is formed of a belt-like sealant material 61 wound and stuck around an inner surface 501 of the inner liner 50, and the sealant layer 60 has a plurality of annular circulation parts 62 arranged in parallel so that the sealant material 61 is in an adjacent state in a tire width direction, and parallel with the tire circumferential direction, and a plurality of transition parts 63 which is provided in part in the tire circumferential direction of the circulation parts 62, and allows the sealant material 61 to transition to the circulation part 62 adjoining one side in the tire width direction.SELECTED DRAWING: Figure 2 【課題】シーラント材の重畳領域が低減してシーラント層の厚みのばらつきが抑えられ、シーラント層に対する吸音層の接着性の向上が図られる空気入りタイヤを提供する。【解決手段】インナーライナー50のタイヤ内腔側に配置されたシーラント層60と、シーラント層60のタイヤ内腔側に配置された吸音層70と、を備え、シーラント層60は、インナーライナー50の内面501に周回されながら貼り付けられた帯状のシーラント材61により形成され、シーラント層60は、シーラント材61がタイヤ幅方向に隣接する状態に並列配置されたタイヤ周方向と平行な複数の環状の周回部62と、周回部62のタイヤ周方向の一部に設けられ、タイヤ幅方向の一方側に隣接する周回部62にシーラント材61が移行する複数の移行部63と、を有する。【選択図】図2