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Japanese Patent JP7215071

B2

The pneumatic tire (1) includes a carcass layer (13), a belt layer (14) disposed on an outer side of the carcass layer (13) in a radial direction, and a tread rubber disposed on an outer side of the belt layer (14) in the radial direction. Additionally, the carcass layer (13) has a cord angle of 80 ° or more and 100 ° or less. Additionally, the belt layer (14) is formed by layering a first reinforcing belt (141), a second reinforcing belt (142) that is narrower than the first reinforcing belt (141), and an auxiliary belt (145) that is spaced apart from a tire equatorial plane (CL) and disposed between the carcass layer (13) and the first reinforcing belt (141). Additionally, the first reinforcing belt (141) and the second reinforcing belt (142) have cord angles of 11 ° or more and 30 ° or less, and the auxiliary belt has a cord angle of 55 ° or more and 70 ° or less, wherein a distance De5 from the tire equatorial plane (CL) to an outer end portion of the auxiliary belt (145) in a tire width direction has a relationship 0.75 ≤ De5/De1 ≤ 0.99 with respect to a distance De1 from the tire equatorial plane (CL) to an end portion of the first reinforcing belt (141), wherein a distance De5' from the tire equatorial plane (CL) to the inner end portion of the auxiliary belt (145) in the tire width direction has a relationship 0.05 ≤ De5'/De5 ≤ 0.30 with respect to the distance De5.

Takamasa Motomitsu

JP2018199372A

January 31, 2023

October 23, 2018

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THE YOKOHAMA RUBBER CO.,LTD.

B60C9/18; B60C9/08

JP2011183857A
JP2008024105A
JP2014113957A
JP357703A
JP2013184552A
JP6144006A
JP62178404A

WO2014057552A1
WO2014010093A1

Sakai International Patent Office

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