Tire
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsHideki Nagasawa, Hiroto Kikuchi
Life of this patent
Estimating the term…
Abstract
A tire includes a plurality of main grooves extending in a tire circumferential direction and four or more rows of land portions defined by the main grooves. Moreover, a middle land portion and a center land portion have a plurality of through lug grooves that pass through the land portions in a tire width direction, respectively. Pitch lengths of the through lug grooves are in a range of from 7% or greater to 14% or less of a tire maximum ground contact length. Additionally, maximum groove depths of the through lug grooves are in a range of from 5% or greater to 65% or less of maximum groove depths of the main grooves.
Claims20
A tire, comprising:
- a plurality of main grooves extending in a tire circumferential direction;
- and
- four or more rows of land portions defined by the main grooves,
- at least one row of the land portions comprising a plurality of through lug grooves that pass through the land portions in a tire width direction,
- a pitch length of the through lug grooves being in a range of from 7% or greater to 14% or less of a tire maximum ground contact length,
- the pitch length of the through lug grooves being in a range of from 45% or greater to 80% or less of a maximum ground contact width of the at least one row of the land portions comprising the through lug grooves,
- a maximum groove depth of the through lug grooves being in a range of from 5% or greater to 25% or less of a maximum groove depth of the main grooves,
- a maximum groove width of the through lug grooves being in a range of from 2.0 mm or greater to 4.0 mm or less,
- the at least one row of the land portions having a road contact surface continuous in the tire width direction,
- the through lug grooves having a zigzag shape,
- an amplitude of the zigzag shape of the through lug grooves being in a range of from 2.0% or greater to 7.0% or less with respect to the pitch length of the through lug grooves, and
- a wavelength of the zigzag shape of the through lug grooves being in a range of from 16% or greater to 22% or less with respect to a maximum ground contact width of the at least one row of the land portions.
Dependencies are inferred from the claim text.