Vehicle tire having unidirectional pattern with mirror image patterns of outer parts being circumferentially shifted
AssigneeSumitomo Rubber Industries, Ltd.
InventorMasahiro Hanya
Life of this patent
Estimating the term…
Abstract
A vehicle tire has an unidirectional tread pattern, and the tread portion is provided with two circumferential grooves to divide the tread portion into two outer parts and a central part there between, the central part being substantially continuous in the tire circumferential direction and formed symmetrically about the tire equator. The outer parts are provided with mirror-image patterns, each formed by circumferentially repeating pattern units having an average circumferential length, and the mirror-image patterns are circumferentially shifted from each other by a distance S of from 0.15 to 0.25 times the above-mentioned average circumferential length.
Claims10
A vehicle tire comprising
- a tread portion provided with a unidirectional pattern,
- the tread portion provided with two circumferential grooves to divide the tread portion into two outer parts and a central part therebetween,
- the central part being substantially continuous in the tire circumferential direction and formed symmetrically about the tire equator,
- the outer parts provided with mirror-image patterns, respectively,
- each of the mirror-image patterns formed by circumferentially repeating pattern units having an average circumferential length, and
- the mirror-image patterns of one of the outer parts circumferentially shifted from those. of the other outer part by a distance S of from 0.15 to 0.25 times said average circumferential length.
A vehicle tire comprising
- a tread portion provided with a unidirectional pattern,
- the tread portion provided with two circumferential grooves to divide the tread portion into two outer parts and a central part therebetween,
- the central part being substantially continuous in the tire circumferential direction and formed symmetrically about the tire equator,
- the outer parts provided with mirror-image patterns, respectively,
- each of the mirror-image patterns formed by circumferentially repeating pattern units having an average circumferential length, and
- the mirror-image patterns of one of the outer parts circumferentially shifted from those of the other outer part by a distance S of from 0.15 to 0.25 times said average circumferential length wherein
- the central part is provided with a pattern symmetrical about the tire equator.
Dependencies are inferred from the claim text.