Studdable tire and pneumatic tire
AssigneeThe Yokohama Rubber Co., Ltd.
InventorKenta Homma
Life of this patent
Estimating the term…
Abstract
A ground contact region of the tread portion of a studdable tire includes a center region located over a range corresponding to a length of 5 to 25% of a ground contact width from a tire centerline on each of both sides of the tire centerline in a tire width direction; and two shoulder regions located on both sides of the center region in the tire width direction. In each of the center region and the shoulder regions, a plurality of the stud pin installation holes are disposed along each of four or more pin arrangement lines extending in a tire circumferential direction. An average value of adjacent intervals between the pin arrangement lines in the center region is larger than an average value of adjacent intervals between the pin arrangement lines in each of the shoulder regions.
Claims14
A studdable tire comprising a plurality of stud pin installation holes in a tread portion,
- a ground contact region of the tread portion including:
- a center region located over a range corresponding to a length of 5 to 25% of a ground contact width from a tire centerline on each of both sides of the tire centerline in a tire width direction;
- and
- two shoulder regions located on both sides of the center region in the tire width direction,
- in each of the center region and the shoulder regions, two or more of the stud pin installation holes being disposed along each of four or more pin arrangement lines extending in a tire circumferential direction, and
- an average value of adjacent intervals between the pin arrangement lines in the center region is larger than an average value of adjacent intervals between the pin arrangement lines in each of the shoulder regions, wherein
- with respect to each two adjacent intervals of the adjacent intervals between the pin arrangement lines in the center region, a first interval A1 is equal to or larger than a second interval A2 between a pin arrangement line L1 included in two pin arrangement lines defining the first interval A1, the pin arrangement line L1 being located outward in the tire width direction, and a pin arrangement line L2 being outward adjacent to the pin arrangement line L1 in the tire width direction.
Dependencies are inferred from the claim text.