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Title:
空気入りタイヤ
Document Type and Number:
Japanese Patent JP4993441
Kind Code:
B2
Abstract:

To provide a pneumatic tire equipped with an enhanced driving stability and abrasion resistance while the rolling resistance is dropped sufficiently.

The arrangement of a conventional pneumatic tire is such that the rubber deformation amount around each end across the width of a belt layer 24 is greater than the other areas when the tire is rolling, and therefore, if a pair of base layers 37 consisting of rubber having a lower JIS hardness are installed in the mentioned area, i.e. in the position straddling the two ends across the width of the belt layer 24, the hysteresis loss in the tread part 15 is lessened efficiently to lead to a sufficient drop of the rolling resistance. Further because only two base layers 37 are installed in the described position, the rigidity of the whole tread part 15 involves less drop, and it is possible to enhance also the driving stability and the abrasion resistance.

COPYRIGHT: (C)2008,JPO&INPIT


Inventors:
Tokutake Satoshi
Application Number:
JP2006170919A
Publication Date:
August 08, 2012
Filing Date:
June 21, 2006
Export Citation:
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Assignee:
Bridgestone Corporation
International Classes:
B60C11/00; B60C1/00; B60C9/00; B60C9/22; B60C11/04
Domestic Patent References:
JP2003127613A
JP2005096747A
JP11139107A
JP2001180225A
JP9175106A
JP200147814A
Attorney, Agent or Firm:
Toshio Tada



 
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