Patent ID: 6112787
Filing Date: 2000-09-05
Classification: B60C,Y10S

Abstract:
A pneumatic tire comprising a tread portion including an axially outer longitudinal main groove and an axially inner longitudinal narrow groove, said main and narrow grooves each extending circumferentially about the tire to define a narrow rib therebetween, said narrow rib being provided with sipes extending across width of said narrow rib, an axially inner edge of said narrow rib chamfered by a sloped portion, said sloped portion extending from a top surface of said narrow rib to the axially inner surface of the narrow rib thereby defining upper and lower edges of said sloped portion, and an axial width of said sloped portion measured between said upper and lower edges is in the range from 0.4 to 0.6 times an axial width of said narrow rib.