Patent ID: 11912071
Assignee: BRIDGESTONE CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. A tire comprising:
a carcass layer which is provided across a tread portion, a pair of sidewall portions, and a pair of bead portions,
wherein the carcass layer has a plurality of laminated carcass plies,
the plurality of carcass plies include a first carcass ply which extend from the tread portion to the pair of bead portions via the pair of sidewall portions and is folded outward in a tire width direction around a bead core embedded in the bead portion,
a first end portion, which is a distal end portion of a portion of the first carcass ply folded around the bead core, is located outside in a tire radial direction from a position where a dimension in the tire width direction is maximum, and is located at a boundary portion between the tread portion and the sidewall portion, and
in a portion located outside in the tire radial direction from the position where the dimension in the tire width direction is maximum, a dimension in a tire thickness direction between the portion of the first carcass ply folded around the bead core and an outer surface of the tire in the tire width direction is maximum between the first end portion and the outer surface of the tire in the tire width direction,
where the plurality of carcass plies include a second carcass ply laminated on the first carcass ply,
the second carcass ply extends from the tread portion to the pair of bead portions via the pair of sidewall portions and is folded outward in the tire width direction around the bead core, and
a second end portion, which is a distal end portion of a portion of the second carcass ply folded around the bead core, is located outside in the tire radial direction from a position where a dimension in the tire width direction is maximum,
wherein a distance in the tire radial direction between an inner end portion of the tire in the tire radial direction and the second end portion is 45% or more and 55% or less of a cross-sectional height.