Pneumatic tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorTetsuya YAMAMOTO
Life of this patent
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Abstract
A pneumatic tire includes a tread portion, a pair of sidewall portions, a pair of bead cores, a carcass layer, a pair of first bead apex rubber components, and a belt layer disposed outward of the carcass layer. In an unloaded condition where the tire is mounted onto a standard rim and inflated with an internal pressure at 50 kPa, the carcass layer has a profile that includes an outer side portion extending from a position (A) where the carcass layer separates from the belt layer to a maximum width position (B) of the carcass layer, and the pair of outer side portion is located outside a virtual arc (C0) having a single radius (R0) of curvature passing through the position (A), the maximum width position (B), and an outermost ends in the tire radial direction of one of the pair of first bead apex rubber components.
Claims20
A pneumatic tire comprising:
- a tread portion;
- a pair of sidewall portions;
- a pair of bead cores;
- a carcass layer comprising at least one carcass ply extending between the pair of bead cores through the tread portion and the pair of sidewall portions;
- a pair of first bead apex rubber components arranged disposed outward in a tire radial direction of the pair of bead cores;
- and
- a belt layer disposed outward in the tire radial direction of the carcass layer, wherein
- in an unloaded condition where the tire is mounted onto a standard rim and inflated with an internal pressure at 50 kPa, the carcass layer has a profile that comprises an outer side portion, the outer side portion extending from a position (A) where the carcass layer separates from the belt layer near an outer end of the belt layer in the tire axial direction to a maximum width position (B) of the carcass layer, and
- the pair of outer side portion is located outside a virtual arc (C0) having a single radius (R0) of curvature passing through the position (A), the maximum width position (B), and an outermost end in the tire radial direction of one of the pair of first bead apex rubber components.
Dependencies are inferred from the claim text.