Title:
PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP2014125005
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pneumatic tire that can increase an effect of decreasing rolling resistance by reducing conductive rubber for forming a conductive path of a lateral portion of the tire.SOLUTION: A carcass ply 7, which is led from a tread portion 3 through a side wall portion 2 into a bead portion 1, has joint portions formed by overlapping and joining end portions of a ply material, at a plurality of positions in the tire circumferential direction. In at least one of the joint portions, a rubber tape 30 is provided exposed on the surface of the carcass ply 7. A topping rubber and a side wall rubber 11 of the carcass ply 7 are formed of a non-conductive rubber and the rubber tape 30 is formed of a conductive rubber. In the tread portion 3, a conductive path is formed that leads from a ground contact surface contactable with a road surface to the rubber tape 30. In the bead portion 1, the conductive path is formed that leads from the outer surface of the bead portion 1 contactable with a rim to the rubber tape 30.
Inventors:
YOSHIKAWA MAKOTO
Application Number:
JP2012281309A
Publication Date:
July 07, 2014
Filing Date:
December 25, 2012
Export Citation:
Assignee:
TOYO TIRE & RUBBER CO
International Classes:
B60C9/04; B60C19/08; B60C13/00
Domestic Patent References:
| JP2012166605A | 2012-09-06 | |||
| JPH106414A | 1998-01-13 | |||
| JPH10193926A | 1998-07-28 | |||
| JP2012131100A | 2012-07-12 | |||
| JPS4857302A | 1973-08-11 |
Foreign References:
| WO2008044288A1 | 2008-04-17 |
Attorney, Agent or Firm:
Patent Business Corporation Unias International Patent Office