Pneumatic tire
AssigneeToyo Tire & Rubber Co., Ltd.
InventorToshihiko Takahashi
Life of this patent
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Abstract
A pneumatic tire comprises, on a tread surface, a circumferential groove which extends in a tire circumferential direction, a land portion which is zoned by the circumferential groove, and a plurality of lag grooves in which one end is open to a side of the circumferential groove and another end is terminated within the land portion, wherein the land portion has a rib-like portion which is successive in a tire circumferential direction and a wing portion which is zoned by the lag grooves, and wherein a plurality of small holes are formed on a surface of the land portion along a line connecting trailing end portions of the lag grooves adjacent to each other.
Claims5
A pneumatic tire, comprising:
- a circumferential groove which extends in a tire circumferential direction;
- a land portion which is zoned by the circumferential groove;
- a plurality of lug grooves in which one end is open to a side of the circumferential groove and another end is terminated within the land portion;
- and
- the circumferential groove, the land portion and a plurality of lug grooves being provided on a tread surface,
- wherein the land portion has a rib-like portion which is successive in a tire circumferential direction and a wing portion which is zoned by the lug grooves, and
- wherein a plurality of small holes are formed along a first line, which extends at the terminated end of the lug groove, from a trailing edge thereof to a leading edge thereof, the plurality of small holes also being in a strip-shaped area and said plurality of holes being parallel to the centerline of the tire, and
- further, wherein centers of the small holes are positioned along said first line, only in a single row, and not outside the strip-shaped area.
Dependencies are inferred from the claim text.