Abstract: In a pneumatic tire, a carcass layer is between bead portions, a bead core is in each bead portion, a reinforcement layer is on an outer side of the carcass layer, and a tread rubber layer is on the outer side of the reinforcement layer. A pair of first boundary lines passes through an intersection of an extension of a side arc forming a tread profile and an extension of a shoulder arc and orthogonal to a tire inner surface, a pair of second boundary lines passes through a rim check line and orthogonal to the tire inner surface, first to third regions are defined which have cross sectional areas of SA, SB, and SC, respectively, and the first to third regions respectively have lengths of a, b, and c along the tire inner surface such that 7.5?SA/a?11.5 and 2.0?SB/b?6.0 are satisfied.

Abstract: A pneumatic tire is provided including a plurality of protrusions and a plurality of recesses of at least one tire side portion. A region including the recesses is provided in the outermost side in a tire radial direction. The protrusions are formed as convexities having a longitudinal shape in a predetermined direction. A region including the protrusions is provided inward in the tire radial direction of the region including the recesses.

Abstract: The tire arrangement implement is employed to arrange a plurality of tires, each provided with a decorative portion located on a sidewall portion, in a row in the tire rotational axis direction. The tire arrangement implement comprises a spacer. The spacer is disposed between adjacent tires or between the tire and the floor, not in contact with the decorative portion, and separates the decorative portion of one tire from another tire or the peripherally located member.

Abstract: A pneumatic tire is provided including a plurality of protrusions and a plurality of recesses of at least one tire side portion. A region including the recesses is provided in the outermost side in a tire radial direction. The protrusions are formed as convexities having a longitudinal shape in a predetermined direction. A region including the protrusions is provided inward in the tire radial direction of the region including the recesses.

Abstract: A pneumatic tire including a plurality of protrusions and a plurality of recesses of at least one tire side portion. The protrusions are formed as convexities having a longitudinal shape in a predetermined direction. A region including the protrusions is provided on an outermost side in a tire radial direction. A region including the recesses is provided inward in the tire radial direction of the region including the protrusions.

Abstract: A pneumatic tire including a closed sipe in a land portion 3 formed in a tread surface, provided with at least three cuts extending in a radiation direction from an imaginary axis that extends in a depth direction of the land portion, and that terminate in the land portion. The cuts are provided with a spiral-like twist in the depth direction, centered on the imaginary axis, and a twist angle thereof is not less than 10° and not more than 135°. Additionally, a length in the radiation direction of the cuts or a width of the cuts is formed larger at a tread surface side than at a bottom surface side.

Abstract: The tire arrangement implement is employed to arrange a plurality of tires, each provided with a decorative portion located on a sidewall portion, in a row in the tire rotational axis direction. The tire arrangement implement comprises a spacer. The spacer is disposed between adjacent tires or between the tire and the floor, not in contact with the decorative portion, and separates the decorative portion of one tire from another tire or the peripherally located member.

Abstract: In a pneumatic tire, a carcass layer is between bead portions, a bead core is in each bead portion, a reinforcement layer is on an outer side of the carcass layer, and a tread rubber layer is on the outer side of the reinforcement layer. A pair of first boundary lines passes through an intersection of an extension of a side arc forming a tread profile and an extension of a shoulder arc and orthogonal to a tire inner surface, a pair of second boundary lines passes through a rim check line and orthogonal to the tire inner surface, first to third regions are defined which have cross sectional areas of SA, SB, and SC, respectively, and the first to third regions respectively have lengths of a, b, and c along the tire inner surface such that 7.5?SA/a?11.5 and 2.0?SB/b?6.0 are satisfied.

Abstract: A pneumatic tire including a closed sipe 5 formed in a tread surface 1 that includes a small hole 2 extending along a tire radial direction and a plurality of cuts 4 extending in a radiation direction from the small hole 2 and that terminating in a land portion 3. A diameter of an inscribed circle of the small hole 2 is greater than a thickness of the cuts 4. The cuts 4 are provided with a twist in a depth direction centered on the small hole 2, and a twist angle ? from a top surface to a bottom surface of the land portion 3 is not less than 10° and less than 135°.

Abstract: A tire/wheel assembly includes a wheel having an attaching portion for attaching the wheel to a vehicle and a pneumatic tire that is fit on a periphery of the wheel. The pneumatic tire includes a plurality of tire protrusions and/or a plurality of tire recesses of a tire side portion that constitutes a vehicle outer side, and the wheel includes a plurality of wheel recesses in a surface that constitutes the vehicle outer side.

Abstract: A pneumatic tire includes a turbulent flow generating fin on a surface of a tire side portion. A plurality of the fins is arranged in a tire radial direction having a predetermined gap so as to form a fin row. Additionally, a plurality of the fin rows is disposed in a tire circumferential direction at a predetermined pitch. Moreover, the adjacent fins are disposed so as to overlap each other in the tire circumferential direction and a tire radial direction.

Abstract: A pneumatic tire unit comprises a front tire to be mounted on a leading side of a vehicle, and a rear tire to be mounted on a trailing side of the vehicle. A plurality of recesses is provided in at least one tire side portion of the front tire, and a plurality of protrusions is provided on at least one tire side portion of the rear tire. A negative pressure region that can be generated at a back surface side of the vehicle is reduced and, therefore, air resistance of the vehicle is reduced and fuel economy is enhanced.

Abstract: A pneumatic tire including a closed sipe in a land portion 3 formed in a tread surface, provided with at least three cuts extending in a radiation direction from an imaginary axis that extends in a depth direction of the land portion, and that terminate in the land portion. The cuts are provided with a spiral-like twist in the depth direction, centered on the imaginary axis, and a twist angle thereof is not less than 10° and not more than 135° . Additionally, a length in the radiation direction of the cuts or a width of the cuts is formed larger at a tread surface side than at a bottom surface side.

Abstract: A pneumatic tire including a separatable pair of mechanical fasteners wherein a first fastener of the pair of mechanical fasteners is provided on a tire inner surface. In this pneumatic tire, the obtained engagement force of the pair of mechanical fasteners is great and is essentially free of variations (positional variation within the tire and variation from tire to tire); the engagement force deteriorates/declines minimally over time due to extreme usage conditions including repetitive deformation and compaction over an extended period of time caused by tire rotation at high speeds in a state of relatively elevated temperatures; and the desired engagement force can be maintained over an extended period of time.

Abstract: A pneumatic tire including a closed sipe in a land portion 3 formed in a tread surface, provided with at least three cuts extending in a radiation direction from an imaginary axis that extends in a depth direction of the land portion, and that terminate in the land portion. The cuts are provided with a spiral-like twist in the depth direction, centered on the imaginary axis, and a twist angle thereof is not less than 10° and not more than 135°. Additionally, a length in the radiation direction of the cuts or a width of the cuts is formed larger at a tread surface side than at a bottom surface side.

Abstract: A pneumatic tire including a closed sipe in a land portion formed in a tread surface, provided with at least three cuts extending in a radiation direction from an imaginary axis that extends in a depth direction of the land portion, and that terminate in the land portion. A widened portion where a width of a cut is locally increased is formed at at least one position of an intermediate region from the imaginary axis to a terminating portion of the cuts.

Abstract: A pneumatic tire unit comprises a front tire to be mounted on a leading side of a vehicle, and a rear tire to be mounted on a trailing side of the vehicle. A plurality of recesses is provided in at least one tire side portion of the front tire, and a plurality of protrusions is provided on at least one tire side portion of the rear tire. A negative pressure region that can be generated at a back surface side of the vehicle is reduced and, therefore, air resistance of the vehicle is reduced and fuel economy is enhanced.

Abstract: A pneumatic tire is provided including a plurality of protrusions and a plurality of recesses of at least one tire side portion. A region including the recesses is provided in the outermost side in a tire radial direction. The protrusions are formed as convexities having a longitudinal shape in a predetermined direction. A region including the protrusions is provided inward in the tire radial direction of the region including the recesses.

Abstract: A pneumatic tire including a closed sipe 5 in a land portion 3 formed in a tread surface 1, provided with at least three cuts 4 extending in a radiation direction from an imaginary axis 2 that extends in a depth direction of the land portion 3, and that terminate in the land portion 3. A widened portion 6 where a width of a cut is locally increased is formed at least one position of an intermediate region from the imaginary axis 2 to a terminating portion 4z of the cuts 4.

Abstract: A pneumatic tire including a closed sipe in a land portion 3 formed in a tread surface, provided with at least three cuts extending in a radiation direction from an imaginary axis that extends in a depth direction of the land portion, and that terminate in the land portion. The cuts are provided with a spiral-like twist in the depth direction, centered on the imaginary axis, and a twist angle thereof is not less than 10° and not more than 135°. Additionally, a length in the radiation direction of the cuts or a width of the cuts is formed larger at a tread surface side than at a bottom surface side.