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US 10,239,356 B2Granted
Pneumatic tire
AssigneeThe Yokohama Rubber Co., Ltd.
InventorKeisuke Kagaya
Life of this patent
Estimating the term…
Abstract
A pneumatic tire is provided with improved braking performance and turning performance on ice. Circumferential narrow grooves are disposed at a density in the tire width direction of not less than 0.06 grooves/mm and not more than 0.2 grooves/mm. Width direction narrow grooves extend at an angle with respect to the tire width direction of not less than −45° and not more than +45°. The circumferential narrow grooves have at least one bent portion. The bend angle of the bent portion is not less than 40° and not more than 160°.
Claims19
A pneumatic tire, comprising:
- a circumferential main groove;
- and
- rows of small blocks partitioned and formed by a plurality of width direction narrow grooves and a plurality of circumferential narrow grooves that intersect with the width direction narrow grooves;
- the circumferential narrow grooves being disposed with a density in a tire width direction of not less than 0.06 grooves/mm, and not more than 0.2 grooves/mm;
- the width direction narrow grooves extending at an angle with respect to the tire width direction of not less than −45° and not more than +45°;
- the circumferential narrow grooves having at least one bent portion;
- and
- a bend angle of the bent portion being not less than 40° and not more than 160°;
- wherein in at least a region in a tire mounting outer side from a tire equatorial plane, there is no apex of the at least one bent portion that bends towards a vehicle mounting outer side on the width direction narrow grooves.
6 more elements
A pneumatic tire, comprising:
- a circumferential main groove;
- and
- rows of small blocks partitioned and formed by a plurality of width direction narrow grooves and a plurality of circumferential narrow grooves that intersect with the width direction narrow grooves;
- the circumferential narrow grooves being disposed with a density in a tire width direction of not less than 0.06 grooves/mm, and not more than 0.2 grooves/mm;
- the width direction narrow grooves extending at an angle with respect to the tire width direction of not less than −45° and not more than +45°;
- the circumferential narrow grooves having at least one bent portion;
- and
- a bend angle of the bent portion being not less than 40° and not more than 160°;
- wherein there is no apex of the at least one bent portion that bends to an opposite side to a tire equatorial plane on the width direction narrow grooves.
6 more elements
Dependencies are inferred from the claim text.