Heavy duty tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorMika NAKAMURA
Life of this patent
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Abstract
A tire 2 includes a tread 4. The tread 4 includes a plurality of land portions 16 separated by a circumferential main groove 10. At least one of the land portions 16 includes a first narrow land portion 28a and a second narrow land portion 28b separated by a circumferential sub groove 26. A top 32 of the first narrow land portion 28a includes a serration 46 having irregularities and a land 48 having no irregularities. The serration 46 is located between a width center of the first narrow land portion 28a and a first edge 30a of the first narrow land portion 28a. The serration 46 includes a plurality of ridges 50. A narrow shallow groove 56 is located between the two adjacent ridges 50 of the plurality of ridges 50.
Claims17
A heavy duty tire comprising a tread located on a radially outermost side and extending in a circumferential direction,
- wherein the tread includes a plurality of land portions separated by a circumferential main groove,
- at least one of the land portions includes a first narrow land portion and a second narrow land portion separated by a circumferential sub groove,
- of two edges of each of the first narrow land portion and the second narrow land portion, an edge on a side of the circumferential sub groove is a first edge and an edge on another side is a second edge,
- a top of the first narrow land portion includes a serration having irregularities and a land having no irregularities,
- the serration is located between a width center of the first narrow land portion and the first edge of the first narrow land portion,
- the serration includes a plurality of ridges, and
- a narrow shallow groove is located between two adjacent ridges of the plurality of ridges.
Dependencies are inferred from the claim text.