Pneumatic tire
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsMasahiro Naruse, Jun Matsuda, Takashi Hoshiba
Life of this patent
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Abstract
A pneumatic tire includes a sound absorbing member having a band shape. The sound absorbing member is bonded to an inner surface of a tread portion along a tire circumferential direction. The sound absorbing member includes a missing portion at at least one location in the tire circumferential direction. The at least one missing portion is disposed in a range corresponding to a light point in a tire main body. A correction body for correcting weight unbalance is fixed to a tire inner surface in the missing portion within the range corresponding to the light point.
Claims13
A pneumatic tire, comprising:
- a sound absorbing member having a band shape bonded to an inner surface of a tread portion along a tire circumferential direction;
- the sound absorbing member comprising a missing portion at at least one location in the tire circumferential direction,
- the at least one missing portion being disposed in a range corresponding to a light point in a tire main body, the light point being a position where the weight is the lightest on the circumference of the tire main body not including the sound absorbing member, and
- a correction body for correcting weight unbalance being fixed to a tire inner surface in the missing portion within the range corresponding to the light point, wherein
- the correction body is fixed to the tire inner surface via an adhesive layer,
- an adhesive strength of the adhesive layer is in a range of from 3.0 N/mm2 to 100 N/mm2,
- a volume Vu of the correction body is in a range of from 0.2% to 7.0% to a virtual volume Vs of the missing portion, and
- a density of a weight Wu of the correction body to a virtual volume Vs of the missing portion is in a range of from 1.0 g/cm3 to 4.0 g/cm3.
A pneumatic tire, comprising:
- a sound absorbing member having a band shape bonded to an inner surface of a tread portion along a tire circumferential direction;
- the sound absorbing member comprising a missing portion at at least one location in the tire circumferential direction,
- the at least one missing portion being disposed in a range corresponding to a light point in a tire main body, the light point being a position where the weight is the lightest on the circumference of the tire main body not including the sound absorbing member, and
- a correction body for correcting weight unbalance being fixed to a tire inner surface in the missing portion within the range corresponding to the light point, wherein
- the correction body is fixed to the tire inner surface via an adhesive layer,
- an adhesive strength of the adhesive layer is in a range of from 3.0 N/mm2 to 100 N/mm2,
- a volume Vu of the correction body is in a range of from 0.2% to 7.0% to a virtual volume Vs of the missing portion, and
- the correction body is positioned offset from a circumferential direction center of the missing portion.
Dependencies are inferred from the claim text.