PNEUMATIC TIRE
A pneumatic tire includes a circumferential main groove extending in a tire circumferential direction, a block, which is a land portion defined by the circumferential main groove, a sipe extending through the block in a tire width direction, and a chamfered portion provided in the sipe. The length of the chamfered portion in the tire width direction is less than 70% of the sipe in the tire width direction.
1 . A pneumatic tire, comprising:
a circumferential main groove extending in a tire circumferential direction;
a land portion defined by the circumferential main groove;
a sipe extending through the land portion in a tire width direction; and
a chamfered portion provided in the sipe,
a length of the chamfered portion in the tire width direction being less than 70% of a length of the sipe in the tire width direction.
2 . The pneumatic tire according to claim 1 , wherein the length of the chamfered portion in the tire width direction is 20% or more of the length of the sipe in the tire width direction.
3 . (canceled)
4 . The pneumatic tire according to claim 3 , wherein when a width of the chamfered portion in a direction orthogonal to an extension direction of the sipe in a road contact surface of the land portion is ML, a relationship between ML and the depth Dm of the chamfered portion is ML>Dm.
5 . (canceled)
6 . The pneumatic tire according to claim 2 , wherein when a groove depth of the circumferential main groove is D, a depth of the sipe is Ds, and a depth of the chamfered portion is Dm, a relationship between depths is D>Ds>Dm.
7 . The pneumatic tire according to claim 6 , wherein when a width of the chamfered portion in a direction orthogonal to an extension direction of the sipe in a road contact surface of the land portion is ML, a relationship between ML and the depth Dm of the chamfered portion is ML>Dm.
8 . The pneumatic tire according to claim 7 , wherein the chamfered portion is provided on at least one of groove wall surfaces of the sipe.
9 . The pneumatic tire according to claim 1 , wherein when a groove depth of the circumferential main groove is D, a depth of the sipe is Ds, and a depth of the chamfered portion is Dm, a relationship between depths is D>Ds>Dm.
10 . The pneumatic tire according to claim 1 , wherein the chamfered portion is provided on at least one of groove wall surfaces of the sipe.