US 12,459,309 B2
Pneumatic tire
Masahiro Naruse, Hiratsuka (JP); Jun Matsuda, Hiratsuka (JP); and Takashi Hoshiba, Hiratsuka (JP)
Assigned to The Yokohama Rubber Co., LTD., Tokyo (JP)
Appl. No. 17/262,660
Filed by The Yokohama Rubber Co., LTD., Tokyo (JP)
PCT Filed Jul. 17, 2019, PCT No. PCT/JP2019/028152
§ 371(c)(1), (2) Date Jan. 22, 2021,
PCT Pub. No. WO2020/022158, PCT Pub. Date Jan. 30, 2020.
Claims priority of application No. 2018-138614 (JP), filed on Jul. 24, 2018.
Prior Publication US 2021/0300126 A1, Sep. 30, 2021
Int. Cl. B60C 19/00 (2006.01); B60C 11/24 (2006.01); B60C 23/00 (2006.01); B60C 23/04 (2006.01)
CPC B60C 19/002 (2013.01) [B60C 11/243 (2013.01); B60C 19/003 (2013.01); B60C 23/0493 (2013.01); B60C 2019/004 (2013.01)] 13 Claims
OG exemplary drawing
 
1. 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.