Multi air chamber tire
AssigneeBridgestone Corporation
InventorShogo Wada
Life of this patent
Estimating the term…
Abstract
A multi air chamber tire 1 includes a tread portion 4, a pair of bead portions 2, a pair of sidewall portions 3, 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 and a second coupling portion 9b coupled with a tire inner wall surface. When the tire 1 is filled with fluid, a first air chamber 20 is formed in a space inward of the partition walls 30 in a tire width direction, and a second air chamber 21 is formed in each space between a partition wall 30 and the tire inner wall surface of a sidewall portion 3.
Claims13
A multi air chamber tire comprising:
- a tread portion;
- a pair of bead portions;
- a pair of sidewall portions extending between the tread portion and the pair of bead portions;
- and
- partition walls respectively provided to half portions of a tire which are defined with respect to a tire equator plane, the partition walls partitioning an inner cavity of the tire to form a plurality of air chambers disposed adjacent to each other, wherein
- each of the partition walls includes a first coupling portion coupled with a tire inner wall surface, and a second coupling portion coupled with the tire inner wall surface at a position outward of the first coupling portion in a tire radial direction,
- in a state where the tire is filled with fluid, a first air chamber is formed in a space located at a position inward of the partition walls in a tire width direction, and a second air chamber is formed in each space located between a partition wall of the partition walls and the tire inner wall surface of a sidewall portion of the pair of sidewall portions, and
- in each partition wall, the second coupling portion is coupled with the tire inner wall surface at a position outward of a respective ground contact edge of the tread portion in the tire width direction and inward of a respective maximum width position of a belt provided in the tread portion in the tire width direction by 10% to 20% of a maximum width of the belt.
Dependencies are inferred from the claim text.