US 12,370,840 B2
Two-wheel vehicle tire
Kazuki Fukushima, Kobe (JP)
Assigned to SUMITOMO RUBBER INDUSTRIES, LTD., Kobe (JP)
Filed by Sumitomo Rubber Industries, Ltd., Kobe (JP)
Filed on Oct. 12, 2023, as Appl. No. 18/379,399.
Claims priority of application No. 2022-175718 (JP), filed on Nov. 1, 2022; and application No. 2022-175719 (JP), filed on Nov. 1, 2022.
Prior Publication US 2024/0140142 A1, May 2, 2024
Int. Cl. B60C 11/03 (2006.01); B60C 11/117 (2006.01); B60C 11/13 (2006.01)
CPC B60C 11/1392 (2013.01) [B60C 11/0302 (2013.01); B60C 11/032 (2013.01); B60C 2200/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A two-wheel vehicle tire comprising a tread portion,
wherein the tread portion includes a first tread edge, a second tread edge, a ground contact surface demarcated between the first tread edge and the second tread edge, a plurality of grooves arranged on the ground contact surface, and a tread development half width,
wherein the tread development half width is a distance along the ground contact surface from a tire equator to the first tread edge,
the grooves include a plurality of crown grooves arranged on the tire equator, a plurality of middle grooves arranged on the first tread edge side of the crown grooves, and a plurality of shoulder grooves arranged on the first tread edge side of the middle grooves,
each of the crown grooves is bent in a V-shape so as to be convex to one side in a tire circumferential direction,
a shortest distance between immediately adjacent grooves is from 5% to 30% of the tread development half width,
each of the crown grooves includes a first crown groove wall on the one side and a second crown groove wall on the other side in the tire circumferential direction,
in each of the crown grooves, each of the first crown groove wall and the second crown groove wall has a chamfered portion in a center portion thereof in a tire axial direction and does not have the chamfered portion in a portion other than the center portion, and
the center portion includes a bent portion of the V-shape in each of the crown grooves.