TIRE

摘要

The pneumatic tire has a carcass ply and a tread part. The carcass ply includes a main body ply reaching from a tread part to a bead core, and a folded ply folded around the bead core. An end part of the folded ply extends to a height position beyond a tire maximum width position. A bead filler height is within the range of 20-60% of the tire sectional height. A bead filler width at a height position corresponding to 30% of the tire sectional height is no greater than 40% of the bead filler root width. A tread width is at least 81% of a tire maximum width, and a curvature radius of the carcass ply at an extension line extending in a tread width direction and passing the tire maximum width position in a cross section in the direction of tire width is at least 30 mm.

主权项

1. A tire comprising:
a carcass ply forming a carcass layer so as to stride over a pair of bead cores; and a tread part arranged at an outer side of the carcass ply in a tire radial direction, the carcass ply including a body ply extended from the tread part to the bead core, and a folded ply folded around each of the bead cores, wherein: an end part of the folded ply is extended to a height position beyond a tire maximum width position; a bead filler height of a bead part is set within a range of 20% to 60% of a tire sectional height; a bead filler width at a height position corresponding to 30% of the tire sectional height is set in a range of 40% or less of a bead filler root part width; a tread width is set in a range of 81% or more of a tire maximum width; and a curvature radius of the carcass ply on an extension line passing the tire maximum width position and extending in a tread width direction in a cross section in a direction of tire width is set to be 30 mm or more.