PNEUMATIC TIRE

摘要

A pneumatic tire is provided with a pair of shoulder lands, and each of the shoulder lands has arranged therein shoulder lug grooves and first sipes. The opposite ends of each of the first sipes terminate within a shoulder land, and the outer end of the first sipe in the axial direction of the tire is located on the inside of a ground contact end of the tread in the width direction of the tire. The sum of the lengths of the first sipes provided in the shoulder land located facing the inside of a vehicle when the tire is mounted on the vehicle is greater than the sum of the lengths of the first sipes provided in the shoulder land located facing the outside of the vehicle. The shoulder land located facing the inside of the vehicle is provided with second sipes extending in the circumferential direction of the tire on the inside of the first sipes in the axial direction of the tire.

主权项

1. A pneumatic tire comprising:
a tread portion being provided with a circumferentially and continuously extending central main groove on each side of a tire equator to form a pair of shoulder portions each dispose axially outward of each central main groove, the tread portion having a direction to install on a vehicle; the shoulder portions comprising an outboard shoulder portion to be located on outboard of the vehicle when the tire is installed to the vehicle and an inboard shoulder portion to be located on inboard of the vehicle when the tire is installed to the vehicle; each of the shoulder portions being provided with a plurality of shoulder lug grooves each extending axially inwardly from each tread edge and terminating within the shoulder portion and a plurality of axially extending first sipes each arranged between a pair of circumferentially adjacent shoulder lug grooves; the first sipe having an axially inner and an outer end each of which terminates within the shoulder portion and the axially outer end located axially inward of the tread edge; a total sum Σ Lai of lengths of the first sipes provided on the inboard shoulder portion being greater than a total sum Σ Lao of lengths of the first sipes provided on the outboard shoulder portion; and the inboard shoulder portion being provided with a circumferentially extending second sipe located axially inward of the first sipes.