Heavy-duty tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorSuguru IZUMO
Life of this patent
Estimating the term…
Abstract
Provided is a heavy-duty tire excellent in ride comfort at a high speed. The tire is a heavy-duty tire comprising a tread part, the tread part comprising a rubber layer composed of a rubber composition, the rubber layer comprising a tread surface, the rubber composition comprising: a rubber component comprising a predetermined amount of an isoprene-based rubber; and a filler comprising a predetermined amount of silica, wherein G, Vt, AIR and ASIL satisfy the following inequalities (1) and (2), (1) G/Vt≤340 (2) AIR×ASIL>5200 where G represents a tire weight, in kg, of the tire, Vt represents a tire volume, in m3, of the tire, AIR represents a content, in % by mass, of the isoprene-based rubber in the rubber component, and ASIL represents a content, in % by mass, of the silica in the filler.
Claims15
A heavy-duty tire comprising a tread part,
- the tread part comprising a rubber layer composed of a rubber composition,
- the rubber layer comprising a tread surface,
- the rubber composition comprising:
- a rubber component comprising an isoprene-based rubber;
- and a filler comprising silica,
- wherein a content of the isoprene-based rubber in the rubber component is greater than 85% by mass,
- wherein a content of the silica in the filler is greater than 60% by mass, and
- wherein G, Vt, AIR and ASIL satisfy the following inequalities (1) and (2)
- G
- /
- Vt
- ≤
- 340
- (
- 1
- )
- A
- IR
- ×
- A
- SIL
- >
- 5200
- (
- 2
- )
- where G represents a tire weight, in kg, of the tire, Vt represents a tire volume, in m3, of the tire, AIR represents the content, in % by mass, of the isoprene-based rubber in the rubber component, and ASIL represents the content, in % by mass, of the silica in the filler.
Dependencies are inferred from the claim text.