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Japanese Patent JP7146600

B2

A multi air chamber tire 1 includes a tread portion 4, a pair of bead portions 2, a pair of sidewall portions 3 extending between the tread portion 4 and the pair of bead portions 2, and partition walls 30 respectively provided to half portions of a tire which are defined with respect to a tire equator plane, the partition walls 30 partitioning an inner cavity of the tire to form a plurality of air chambers disposed adjacent to each other. Each of the partition walls 30 includes a first coupling portion 9a coupled with a tire inner wall surface, and a second coupling portion 9b coupled with the tire inner wall surface at a position outward of the first coupling portion 9a in a tire radial direction. In a state where the tire 1 is filled with fluid, a first air chamber 20 is formed in a space located at a position inward of the partition walls 30 in a tire width direction, and a second air chamber 21 is formed in a space located between a partition wall of the partition walls 30 and the tire inner wall surface of a sidewall portion of the pair of sidewall portions 3.

JPS5153303	NIJUTAIYA NIOKERU KUKIIRINAKAGOTAIYA
JP2003146032	RUBBER-FIBER COMPOSITE MATERIAL AND RUBBER ARTICLE USING IT
WO/2020/110420	MULTIPLE-CHAMBER TIRE

Shogo Wada

JP2018225976A

October 04, 2022

November 30, 2018

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Bridgestone Corporation

B60C17/01; B60C5/20

JP61076705U
JP2015077922A
JP37001754B1
JP2008308125A
JP20071551A

FR2087349B1
CN102848862A
US20050279438
KR101834926B1
GB1507082A
WO2019115917A1
US4280546
FR2276953A1

Kenji Sugimura
Mitsutsugu Sugimura
Yasuyuki Komatsu
Yuki Suzuki

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