Pneumatic tire
AssigneeBridgestone Corporation
InventorEiji Ichihara
Life of this patent
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Abstract
Proposed is a pneumatic tire having excellent durability, handling stability and uneven wear resistance even if weight reduction is achieved by improving a belt. The pneumatic tire according to the present invention having a carcass layer 5 toroidally extending from a tread portion 3 through a side wall portion 2 to a bead portion 1, and a belt layer 6 disposed at the outer side of the carcass layer 5 in the tire radial direction, in which the carcass layer 5 includes one or more carcass plies 5a, the belt layer 6 includes a first belt 7 having a first cord 7a inclined with respect to a tire equator S at an angle in the range of 15° to 75° and a second belt 8 having a second cord 8a extending in parallel to the tire equator S, said first belt 7 having a tensile strength smaller than that of the second belt 8.
Claims5
A pneumatic tire for a passenger vehicle having a carcass layer toroidally extending from a tread portion through a side wall portion to a bead portion, and a belt layer disposed at the outer side of the carcass layer in the tire radial direction, wherein
- the carcass layer includes one or more carcass plies, and,
- the belt layer consists of only two belts, which are comprised of a first belt and a second belt, the first belt having one layer of a first cord inclined with respect to a tire equator at an angle in the range of 15° to 75° and the second belt having one layer of a second cord extending in parallel to the tire equator,
- said first belt having a tensile strength smaller than that of the second belt,
- said first cord being a steel cord,
- said second cord being an organic fiber cord.
Dependencies are inferred from the claim text.