Pneumatic Tire

摘要

A pneumatic tire has carcass layers mounted between a pair of bead parts, the carcass layers being wound from the inner side of the tire to the outer side thereof about a bead core of each bead part. Protective layers including organic fiber cords are positioned in sidewall parts on the outer side of the carcass layers. The upper end parts of the protective layers are positioned along the carcass layers from outer end locations of the belt layers, between a location 20 mm toward the inner side in the tire width direction and a location 15 mm toward the outer side in the tire width direction. The lower end parts of the protective layers are positioned between main body portions of the carcass layers and the bead filler.

主权项

1. A pneumatic tire, comprising:
a tread part with an annular shape extending in a tire circumferential direction; a pair of sidewall parts positioned on each side of the tread parts; and a pair of bead parts positioned on an inner side of the sidewall parts in a tire radial direction;
at least one carcass layer being mounted between the pair of bead parts in the pneumatic tire;the carcass layer being wound from an inner side of the tire to an outer side thereof about a bead core of each of the bead parts;bead fillers being positioned on an outer circumference side of the bead cores;a plurality of belt layers being positioned on an outer circumference side of the carcass layer in the tread part;a protective layer including organic fiber cords being positioned on an outer side of the carcass layer in the sidewall parts;upper end parts of the protective layer being positioned between a location 20 mm toward the inner side in the tire width direction and a location 15 mm toward the outer side in the tire width direction from an outer end location of the belt layers along the carcass layer;lower end parts of the protective layer being positioned between a main body portion of the carcass layer and the bead filler with an overlap length between the protective layer and the bead filler of 10 mm or greater; anda rubber layer with a thickness from 0.5 mm to 2.0 mm and a tan 6 at 60° C. of 0.12 or less being interposed between the protective layer and the main body portion of the carcass layer.