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US 11,548,325 B2Granted
Pneumatic tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorHisataka Kajita
Life of this patent
Estimating the term…
Abstract
A pneumatic tire comprises bead portions each having a bead core therein. Each of the bead portions has an outer side surface which is to be in contact with a standard rim on an outer side in a tire axial direction of the bead core. In a tire meridian section of the pneumatic tire in a pre-mounted state, a distance in a tire radial direction between an inner end in a tire radial direction of the bead core and a bead toe is larger than 0.5 times and smaller 2.5 times a maximum width in the tire axial direction of the bead core.
Claims18
A pneumatic tire, comprising:
- a pair of bead portions each having a bead core therein,
- wherein each of the pair of the bead portions has an outer side surface which is to be in contact with a standard rim on an outer side in a tire axial direction of the respective one of the bead cores,
- in a tire meridian section of the pneumatic tire in a pre-mounted state in which a width between the outer side surfaces is equal to a rim width of the standard rim, in at least one of the pair of the bead portions, a distance (H) in a tire radial direction between an inner end in the tire radial direction of the bead core and a bead toe is larger than 0.5 times and smaller than 2.5 times a maximum width (Y) in the tire axial direction of the bead core, and
- when measured at a radial height of the axially outer end of the bead core, a minimum length in the tire axial direction between an axially outer end of the bead core and the outer side surface is in a range of from 10% to 25% of the maximum width (Y).
1 more element
A pneumatic tire, comprising:
- a pair of bead portions each having a bead core therein,
- wherein each of the pair of the bead portions has an outer side surface which is to be in contact with a standard rim on an outer side in a tire axial direction of the respective one of the bead cores,
- in a tire meridian section of the pneumatic tire in a pre-mounted state in which a width between the outer side surfaces is equal to a rim width of the standard rim, in at least one of the pair of the bead portions, a distance (H) in a tire radial direction between an inner end in the tire radial direction of the bead core and a bead toe is larger than 0.5 times and smaller than 2.5 times a maximum width (Y) in the tire axial direction of the bead core, and
- each of the bead cores has a circular cross section with a plurality of sheath wires wound helically around the annular core, the bead core being covered by a wrapping sheet having a cloth material using organic fiber cords,
- wherein a minimum length in the tire axial direction between the bead core and the outer side surface is in a range of from 10% to 25% of the maximum width (Y).
2 more elements
A pneumatic tire, comprising:
- a pair of bead portions each having a bead core therein,
- wherein each of the pair of the bead portions has an outer side surface which is to be in contact with a standard rim on an outer side in a tire axial direction of the respective one of the bead cores,
- in a tire meridian section of the pneumatic tire in a pre-mounted state in which a width between the outer side surfaces is equal to a rim width of the standard rim, in at least one of the pair of the bead portions, a distance (H) in a tire radial direction between an inner end in the tire radial direction of the bead core and a bead toe is larger than 0.5 times and smaller than 2.5 times a maximum width (Y) in the tire axial direction of the bead core, and
- a tread width is a distance between tread edges in the tire axial direction and is a maximum width of the tire.
1 more element
Dependencies are inferred from the claim text.