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US 8,191,595 B2Granted
Tire for two-wheeled motorcycles including intermediate carcass layer
AssigneeBridgestone Corporation
InventorMasatomo Oshima
Life of this patent
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Abstract
A tire for two-wheeled motorcycles of the present invention includes a first carcass layer folded back along circumferential surfaces of bead cores, a second carcass layer folded back along circumferential surfaces of turnbacks of the first carcass layer 5, a belt layer wound spirally along a tire circumferential direction and an intermediate carcass layer provided between the first and second carcass layers 7 and in an inner circumferential side of the belt layer and extending close to a tire maximum width.
Claims6
A pneumatic two-wheeled motorcycle tire, comprising:
- a first carcass cord layer folded back along circumferential surfaces of bead cores;
- a second carcass cord layer folded back along circumferential surfaces of turnbacks of the first carcass cord layer;
- a belt layer provided in an outer circumferential side of the first carcass cord layer and the second carcass cord layer and spirally wound along a tire circumferential direction, the belt layer extending from the tire equatorial plane to terminate at a pair of belt layer edge positions;
- a tread provided in an outer circumferential side of the belt layer, the tread extending between a pair of tread edges located at tire maximum width points FW;
- an intermediate carcass cord layer provided between the first carcass cord layer and the second carcass cord layer and in an inner circumferential side of the tread and extending from the tire equatorial plane to terminate at a pair of intermediate carcass cord layer edge positions;
- wherein
- each edge position of the belt layer is located at a radial distance from the rotation axis of the tire which is greater than the radial distance from the rotation axis of the tire of a line parallel to the rotation axis of the tire and passing through the tire maximum width points FW;
- and
- each edge position of the intermediate carcass cord layer is located at a radial distance from the rotation axis of the tire which is less by as much as 20 mm than the radial distance from the rotation axis of the tire of a line parallel to the rotation axis of the tire and passing through the tire maximum width points FW.
6 more elements
Dependencies are inferred from the claim text.