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US 10,518,589 B2Granted
Pneumatic tire
AssigneeBridgestone Corporation
InventorsFumitaka Kobayashi, Hiroaki Fujiwara
Life of this patent
Estimating the term…
Abstract
The interval along the tire circumferential direction between sipes adjacent in the tire circumferential direction is 2 to 10 times the depth of the sipes. In the depth direction of the sipes, the sipes each have at least three sipe portions divided by at least two bent portions, and a bent portion angle formed between adjacent sipe portions with one of the bent portions therebetween is greater at the tread surface side than at the sipe bottom side.
Claims6
A pneumatic tire comprising a plurality of sipes extending in a tire width direction on a tread surface;
- wherein
- an interval along a tire circumferential direction between the sipes adjacent in the tire circumferential direction is 2 to 10 times a depth of the sipes;
- and
- in a depth direction of the sipes,
- the sipes each have at least three sipe portions divided by at least two bent portions;
- and
- a bent portion angle formed between adjacent sipe portions with one of the bent portions therebetween is larger at a tread surface side than at a sipe bottom side,
- wherein the bent portions are formed continuously in an extending direction of the sipes, and the bent portion angle in each continuously formed bent portion is larger at an end than at a center in the extending direction of the sipes.
5 more elements
Dependencies are inferred from the claim text.