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US 12,023,963 B2Granted
Pneumatic tire
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsTakashi Hoshiba, Noriyoshi Koyama, Mizuki Kuninaka
Life of this patent
Estimating the term…
Abstract
In a pneumatic tire, a two-dimensional code is provided on a surface of side rubber provided in a side portion. The two-dimensional code is formed of a dot pattern including two types of gray scale elements identifiably formed using surface irregularities. A two-dimensional code range in a tire radial direction in which the two-dimensional code is provided lies outward or inward of a bead filler rubber edge located outward of bead filler rubber in the tire radial direction.
Claims20
A pneumatic tire comprising:
- a pair of bead cores with an annular shape;
- at least one carcass ply with a toroidal shape wound about the pair of bead cores and provided between the pair of bead cores;
- side rubber provided in each of sidewall portions of the pneumatic tire to cover the carcass ply from outside the tire;
- and
- bead filler rubber provided along the carcass ply and extending outward in a tire radial direction from a side of each of the pair of bead cores,
- a two-dimensional code being provided on a surface of the side rubber, the two-dimensional code formed of a dot pattern including two types of gray scale elements identifiably formed using surface irregularities on the side rubber, and
- a two-dimensional code range in the tire radial direction in which the two-dimensional code is provided lying outward or inward in the tire radial direction of a bead filler rubber edge located outward of the bead filler rubber in the tire radial direction, wherein
- a distance along the tire radial direction between the bead filler rubber edge and an outer edge of the two-dimensional code located closest to the bead filler rubber edge is 5% or more and 100% or less of a length of the two-dimensional code along the tire radial direction.
5 more elements
A pneumatic tire comprising:
- a pair of bead cores with an annular shape;
- at least one carcass ply with a toroidal shape wound about the pair of bead cores and provided between the pair of bead cores;
- side rubber provided in each of sidewall portions of the pneumatic tire to cover the carcass ply from outside the tire;
- and
- bead filler rubber provided along the carcass ply and extending outward in a tire radial direction from a side of each of the pair of bead cores,
- a two-dimensional code being provided on a surface of the side rubber, the two-dimensional code formed of a dot pattern including two types of gray scale elements identifiably formed using surface irregularities on the side rubber, and
- a two-dimensional code range in the tire radial direction in which the two-dimensional code is provided lying inward in the tire radial direction of a bead filler rubber edge located outward of the bead filler rubber in the tire radial direction, and
- a distance along the tire radial direction between the bead filler rubber edge and an outer edge of the two-dimensional code located closest to the bead filler rubber edge is 5% or more and 100% or less of a length of the two-dimensional code along the tire radial direction.
5 more elements
Dependencies are inferred from the claim text.