PNEUMATIC TIRE
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United States of America Patent
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app pub date -
Feb 3, 2016
filing date -
Feb 4, 2015
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Abstract
A center land part and intermediate land parts formed on the tread surface by four main grooves are partitioned in the circumferential direction of the tire only by sipes, and form block parts arranged in the circumferential direction. The acute angle parts of each of the block parts are all chamfered from the tread surface side. The chamfered width at an end part of the block part in the width direction of the tire is greater than the chamfer width at the middle part. Each ends of the sipes in an outer intermediate land part open respectively to the main grooves. The mean angle of the sipes in the outer intermediate land part is less than that in the center land part and in an inner intermediate land part. The sipes in the center land part communicate with the main groove only on the side of the vehicle installation inner side.
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