Pneumatic tire unit
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsMasataka Kubota, Masatoshi Kuwajima, Masataka Koishi
Life of this patent
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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.
Claims18
A pneumatic tire unit comprising:
- 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;
- wherein
- a plurality of recesses is provided in only one tire side portion of the front tire, and a plurality of protrusions is provided on only one tire side portion of the rear tire;
- the recesses and the protrusions are disposed in a circumferential direction at a predetermined pitch;
- the protrusions are not provided in either tire side portion of the front tire;
- the recesses are not provided in either tire side portion of the rear tire;
- the recesses are provided in the tire side portion of a vehicle outer side of the front tire;
- and
- the protrusions are provided on the tire side portion of a vehicle inner side of the rear tire.
A pneumatic tire unit comprising:
- 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;
- wherein
- a plurality of recesses is provided in a front tire side portion, and a plurality of protrusions is provided on a rear tire side portion;
- the recesses and the protrusions are disposed in a circumferential direction at a predetermined pitch;
- inner and outer sides of the front tire are devoid of the protrusions;
- and
- inner and outer sides of the rear tire are devoid of the recesses.
Dependencies are inferred from the claim text.