Patent ID: 11872845
Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. The tire according to claim 1, wherein
the five land portions comprise a crown land portion located on the tire equator,
the crown land portion comprises a first longitudinal edge extending in the tire circumferential direction on the first tread edge side, a second longitudinal edge extending in the tire circumferential direction on the second tread edge side, and a ground contact surface between the first longitudinal edge and the second longitudinal edge,
the crown land portion is provided with a plurality of first crown sipes each extending from the first longitudinal edge and having a closed end within the ground contact surface, and a plurality of second crown sipes each extending from the second longitudinal edge and having a closed end within the ground contact surface,
each of the plurality of first crown sipes and the plurality of second crown sipes comprises a pair of sipe edges,
at least one of the pair of sipe edges of at least one first crown sipe opens at the ground contact surface of the crown land portion via a chamfer portion over an entire length thereof,
the chamfer portion of the at least one first crown sipe has a chamfer width decreasing from the first longitudinal edge to the closed end thereof continuously,
at least one of the pair of sipe edges of at least one second crown sipe opens at the ground contact surface of the crown land portion via a chamfer portion over an entire length thereof, and
the chamfer portion of the at least one second crown sipe has a chamfer width decreasing from the second longitudinal edge to the closed end thereof continuously.