Patent ID: 7690410

Claim:
A vehicle wheel in which an additional air chamber member in a tire air chamber is fixed on an outer circumferential surface of a well portion of a rim of the vehicle wheel, comprising: a first vertical wall surface rising outward in a radial direction from the outer circumferential surface of the well portion and extending in a circumferential direction of the outer circumferential surface; and a second vertical wall surface formed in the well portion facing the first vertical wall surface, wherein the additional air chamber member comprises a main body having an additional air chamber formed therein; and also a communication hole formed therein; said communication hole adapted to provide communication between the additional air chamber and the tire air chamber; and a pair of end portions extending from peripheral portions of the main body in a width direction of said vehicle wheel; wherein the additional air chamber member is fitted between the first vertical wall surface and the second vertical wall surface, and said end portions of the additional air chamber member are secured to respective said first vertical wall surface and the second vertical wall surface such that said additional air chamber member is arranged in said well portion and between said first and second wall surfaces; wherein the first vertical wall surface is disposed on a vertical wall substantially vertically disposed on the outer circumferential surface extending in the circumferential direction, and the second vertical wall surface is disposed on a rising portion of the well portion, wherein a groove extending in the circumferential direction is formed on each of the first vertical wall surface and the second vertical wall surface, and each of the end portions of the additional air chamber member is fitted in the groove.