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Patent Searching and Data


Title:
PNEUMATIC TIRE AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2006151166
Kind Code:
A
Abstract:

To provide a pneumatic tire capable of reducing a change in the motion performance owing to wear without impairing the heat emitting characteristic and provide a manufacturing method for pneumatic tires.

The pneumatic tire is equipped with a tread part formed in a ring shape, a pair of side wall parts arranged inside in the tire radial direction from each tread end, and a pair of bead parts continued to the inside in the tire radial direction of each side wall part, wherein the tread part is formed by laminating eight or more rubber layers differing in the depth direction, and the dynamic stored modulus of elasticity E' varies from rubber layer to layer. It is preferable that the difference in E' between adjoining layers is 0.5-2 MPa.


Inventors:
OHASHI MASAYUKI
KANEKO SATOSHI
Application Number:
JP2004000344099
Publication Date:
June 15, 2006
Filing Date:
November 29, 2004
Export Citation:
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Assignee:
BRIDGESTONE CORP
International Classes:
B60C11/00; B29D30/60; B60C1/00
Domestic Patent References:
JPH02179515A1990-07-12
JPH08142611A1996-06-04
JPH061111A1994-01-11
JPH09150605A1997-06-10
JPS5963205A1984-04-10
JP2003145601A2003-05-20
Attorney, Agent or Firm:
本多 一郎