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US 11,633,989 B2Granted
Tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorKoichi Nakajima
Life of this patent
Estimating the term…
Abstract
The tire includes a tread portion 2 having at least one groove 3 that includes two groove walls 6. At least one of the groove walls 6 has a protrusion 10 that protrudes from the groove wall 6. The protrusion 10 includes at least two ribs 11 that extend in a length direction of the groove 3 and are spaced from each other in the tire radial direction, and a joining portion 12 for joining the ribs 11 to each other. Each rib 11 protrudes from the groove wall 6 so as to form such an inclination that the rib 11 is inclined outward from the groove wall 6 in a tire radial direction.
Claims16
A tire comprising:
- a tread portion having at least one groove that includes two groove walls, wherein
- each of the two groove walls has a protrusion that protrudes from the groove wall,
- the protrusion includes at least two ribs extending in a length direction of the groove,
- each of the at least two ribs protrudes from the groove wall so as to form such an inclination that each of the at least two ribs is inclined outward from the groove wall in a tire radial direction,
- each of the at least two ribs has a flat leading end surface at a portion farthest from the groove wall in a direction along the inclination,
- a shape of each of the at least two ribs is a parallelogram having a rib thickness t1, on a cross-section orthogonal to the length direction of the groove,
- the at least two ribs are spaced apart with a gap t2 on the cross-section orthogonal to the length direction of the groove, and
- the rib thickness t1 of each of the ribs is larger than the gap t2.
5 more elements
A tire comprising:
- a tread portion having at least one groove that includes two groove walls,
- wherein each of the two groove walls has a protrusion that protrudes from the groove wall,
- the protrusion includes at least two ribs extending in a length direction of the groove,
- each of the at least two ribs protrudes from the groove wall so as to form such an inclination that each of the at least two ribs is inclined outward from the groove wall in a tire radial direction,
- each of the at least two ribs has a flat leading end surface at a portion farthest from the groove wall in a direction along the inclination,
- wherein a shape of each of the at least two ribs is a parallelogram having a rib thickness t1, on a cross-section orthogonal to the length direction of the groove,
- the two ribs are spaced apart with a gap t2 on the cross-section orthogonal to the length direction of the groove,
- the rib thickness t1 of each of the ribs is larger than the gap t2, and wherein an angle of the inclination relative to a line normal to the tire at the groove wall is 30 to 60°.
5 more elements
A tire comprising:
- a tread portion having at least one groove that includes two groove walls, wherein
- each of the two groove walls has a protrusion that protrudes from the groove wall,
- the protrusion includes at least two ribs extending in a length direction of the groove,
- each of the at least two ribs protrudes from the groove wall so as to form such an inclination that each of the at least two ribs is inclined outward from the groove wall in a tire radial direction,
- each of the at least two ribs has a flat leading end surface at a portion farthest from the groove wall in a direction along the inclination,
- each of the at least two ribs has an inner face, an outer face in the radial direction and the flat leading end surface connecting between the inner face and the outer face,
- each of the at least two ribs has a rib thickness t1 on a cross-section orthogonal to the length direction of the groove,
- each of the at least two ribs are spaced apart with a gap t2 on the cross-section orthogonal to the length direction of the groove, and
- the rib thickness t1 of each of the ribs is larger than the gap t2.
6 more elements
Dependencies are inferred from the claim text.