Pneumatic tire
AssigneeToyo Tire Corporation
InventorKeisuke Matsubara
Life of this patent
Estimating the term…
Abstract
In a pneumatic tire, a buttress has formed therein a straight region with a flat surface, and a projection which is located adjacent to the straight region in a radially inward direction of the tire and which is formed in an annular shape along a tire circumferential direction. The length (d1+d2) in a tire radial direction from an edge of the straight region in a radially outward direction of the tire to a tip of the projection is greater than the length in the tire radial direction from a ground contact edge of the tread to the edge of the straight region in the radially outward direction of the tire. The height of the projection is greater than or equal to 0.5 mm and less than or equal to 1.0 mm.
Claims11
A pneumatic tire comprising a tread and a buttress, wherein in the buttress, there are formed:
- a straight region with a flat surface;
- and
- a projection which is located adjacent to the straight region in a radially inward direction of the tire and which is formed in an annular shape along a tire circumferential direction,
- a length (d1+d2) in a tire radial direction from an edge of the straight region in a radially outward direction of the tire to a tip of the projection is greater than a length (d3) in the tire radial direction from a ground contact edge of the tread to the edge of the straight region in the radially outward direction of the tire, and
- a height of the projection is greater than or equal to 0.5 mm and less than or equal to 1.0 mm;
- wherein the projection includes the tip, a first region which is formed flat from an edge of the straight region in the radially inward direction of the tire toward the tip, and a second region which is located in the radially inward direction of the tire from the tip and which is curved so as to be convex in an inward direction of the tire, the first region and the second region are coupled with each other at the tip.
A pneumatic tire comprising a tread and a buttress, wherein
- in the buttress, there are formed:
- a straight region with a flat surface;
- and
- a projection which is located adjacent to the straight region in a radially inward direction of the tire and which is formed in an annular shape along a tire circumferential direction,
- a length (d1+d2) in a tire radial direction from an edge of the straight region in a radially outward direction of the tire to a tip of the projection is greater than a length (d3) in the tire radial direction from a ground contact edge of the tread to the edge of the straight region in the radially outward direction of the tire, and
- a height of the projection is greater than or equal to 0.5 mm and less than or equal to 1.0 mm;
- wherein
- the tread comprises a shoulder block,
- in the shoulder block, two types of slits extending beyond the ground contact edge into the buttress are alternately formed in the tire circumferential direction, and
- between the respective slits, the straight region is formed from a position located toward the ground contact edge from ends of the slits in the radially inward direction of the tire.
Dependencies are inferred from the claim text.