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US 11,597,241 B2Granted
Pneumatic tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorShohei Yamazoe
Life of this patent
Estimating the term…
Abstract
In a pneumatic tire 2, a contour of an outer surface of each side portion includes a first segment that is a straight line or a circular arc, and a second segment that is a straight line or a circular arc and that is connected to an end of the first segment. The contour of the outer surface of the side portion bends outward with a connection point of the first segment and the second segment as a bending point. The first segment and the second segment are preferably straight lines.
Claims15
A pneumatic tire, comprising:
- a tread including a tread surface;
- a carcass;
- a pair of beads;
- and
- a contour of an outer surface of each side portion that includes:
- a first segment that is a straight line or a circular arc, and
- a second segment that is a straight line or a circular arc and that is continuous with the first segment, wherein
- the contour of the outer surface of each side portion bends outward with a connection point of the first segment and the second segment as a bending point,
- the contour includes more than 2 bending points,
- a distance in a radial direction of the tire between the bending points is not greater than 0.2 times a cross-sectional height of the tire for all of adjacent pairs of bending points,
- an angle between the first segment and the second segment that opens toward an inside of the tire is an obtuse angle that is not greater than 165°, wherein
- the carcass includes a carcass ply extending on and between both of the beads, and
- the carcass ply is turned up around each bead of the beads from an inner side toward an outer side to form a main portion and a turned-up portion in the carcass ply, wherein
- the contour of the outer surface of the tire on an axially outer side of the bead includes a circular arc that is convex inward in an axial direction, a radially outer end of the circular arc is connected to a radially inner end of the first segment, an inner end of a side surface is the radially inner end of the first segment, and wherein
- a distance in the radial direction between an end of the turned-up portion and the inner end of the side surface is not greater than 5 mm, and wherein
- a distance in the radial direction between a base of the tread and one of the bending points is not greater than 3 mm.
13 more elements
A pneumatic tire, comprising:
- a tread including a tread surface;
- and
- a contour of an outer surface of each side portion of the tire that includes:
- a first straight segment that is a straight line,
- a second straight segment that is a straight line and that is continuous with the first straight segment, and
- a third segment, wherein
- the contour of the outer surface of each side portion bends outward with a connection point of the first straight segment and the second straight segment as a first bending point,
- the contour further includes a second bending point that is a connection point of the third segment and one of the first and second segments,
- the first bending point and the second bending point are covered by the tread surface of the tire in a radial direction of the tire,
- the contour includes a projection at one or more of the first and second bending points, and the projection is disposed on an outer side of two adjacent segments among the first, second, and third segments,
- an angle between the first straight segment and the second straight segment that opens toward an inside of the tire is an obtuse angle that is not greater than 175°, and
- a distance in the radial direction between a base of the tread and the second bending point is not greater than 5 mm.
9 more elements
A pneumatic tire, comprising:
- a tread including a tread surface;
- and
- a contour of an outer surface of each side portion of the tire that includes:
- a first segment that is a circular arc,
- a second segment that is a circular arc and that is continuous with the first segment, and
- a third segment, wherein
- the contour of the outer surface of each side portion bends outward with a connection point of the first segment and the second segment as a first bending point,
- the contour further includes a second bending point that is a connection point of the third segment and one of the first and second segments,
- the first bending point and the second bending point are covered by the tread surface of the tire in a radial direction of the tire,
- an angle between the first segment and the second segment that opens toward an inside of the tire is an obtuse angle that is not greater than 165°, and
- a distance in the radial direction between a base of the tread and the second bending point is not greater than 5 mm.
8 more elements
A pneumatic tire, comprising:
- a tread including a tread surface;
- a carcass and a pair of beads;
- and
- a contour of an outer surface of each side portion of the tire that includes:
- a first segment that is a straight line,
- a second segment that is a straight line and that is continuous with the first segment, and
- a third segment, wherein
- the contour of the outer surface of each side portion bends outward with a connection point of the first segment and the second segment as a first bending point,
- the contour further includes a second bending point that is a connection point of the third segment and one of the first and second segments,
- the first bending point and the second bending point are covered by the tread surface of the tire in a radial direction of the tire,
- an angle between the first segment and the second segment that opens toward an inside of the tire is an obtuse angle that is not greater than 165°,
- a distance in the radial direction between a base of the tread and the second bending point is not greater than 5 mm,
- the carcass includes a carcass ply extending on and between both of the beads, and
- the carcass ply is turned up around each bead of the beads from an inner side toward an outer side to form a main portion and a turned-up portion in the carcass ply, wherein
- the contour of the outer surface of the tire on an axially outer side of the bead includes a circular arc that is convex inward in an axial direction, a radially outer end of the circular arc is connected to a radially inner end of the first segment, an inner end of a side surface is the radially inner end of the first segment, and wherein
- a distance in the radial direction between an end of the turned-up portion and the inner end of the side surface is not greater than 5 mm.
13 more elements
Dependencies are inferred from the claim text.