Pneumatic tire
AssigneeBridgestone Corporation
InventorsHiroshi TAKADA, Hiroyuki YOKOKURA, Junko SAITO, Yuta HOSHINO
Life of this patent
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Abstract
At a pneumatic tire (11), in a pneumatic tire in which a reinforcing layer (11) is structured from at least one reinforcing ply (53) in which are embedded plural reinforcing cords (54) that are formed from steel and are inclined with respect to a tire equator S, an inclination angle A of the reinforcing cords (54) with respect to the tire equator S is within a range of 40 to 90°, and a compressive rigidity F per 50 mm width of a reinforcing layer (52) in a direction parallel to the reinforcing cords (54) is within a range of 1000 to 2400 N.
Claims12
A pneumatic tire that is structured from:
- a carcass layer that extends in a toroidal shape, both end portions of the carcass layer in a transverse direction being folded-over onto a pair of bead cores, and the carcass layer being structured from two or more carcass plies in which are embedded a plurality of carcass cords that are formed from organic fibers and are inclined with respect to a tire equator S;
- a belt layer that is disposed at a radial direction outer side of the carcass layer;
- a tread that is disposed at a radial direction outer side of the belt layer;
- and a reinforcing layer that is disposed between adjacent carcass plies at a position that overlaps the belt layer in a radial direction, the reinforcing layer being structured from at least one reinforcing ply in which are embedded a plurality of reinforcing cords that are formed from steel and that are inclined with respect to the tire equator S,
- wherein an inclination angle A of the reinforcing cords with respect to the tire equator S is within a range of 40 to 90°, and a compressive rigidity F per 50 mm width of the reinforcing layer, in a direction parallel to the reinforcing cords, is within a range of 1000 to 2400 N.
Dependencies are inferred from the claim text.