| 摘要 |
PROBLEM TO BE SOLVED: To provide a bead part structure for a pneumatic tire capable of effectively preventing oxygen deterioration of a bead part constitution member by effectively suppressing the permeation of oxygen into the bead part. SOLUTION: In the tire bead part provided with a pair of bead cores 1; a carcass 2 troidally extending between these bead cores and having both side part areas wound and returned around the respective bead cores; a rubber chafer 3 for dividing a bead base 4 at an inner peripheral side of the bead core 1; and an inner liner 5 for dividing an inner surface of the tire, at an inner surface side of the tire, a part of the rubber chafer 3 is inserted and arranged between the inner liner 5 and the carcass 2, and an adhesion rubber 7 containing at least one of butyl and halogenated butyl is interposed between the inner liner 5 and the rubber chafer 3. COPYRIGHT: (C)2008,JPO&INPIT
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