Patent ID: 7896043

Claim:
A wheel for a vehicle comprising: a wheel body including a disk and a rim fixed to an outer circumference of the disk for supporting a tire for the vehicle; an air pressure sensor unit having an air pressure sensor for detecting a pressure in an air chamber in the tire to generate a pressure signal and a transmitter for transmitting the pressure signal; a sub air chamber member on the rim for reducing a magnitude of a resonance sound generated by an air column defined by the air chamber defined by the rim and the tire; wherein the air pressure sensor unit and the sub air chamber member are disposed in a circumferential direction of the wheel so as to cancel out one unbalance mass distribution of the vehicle wheel in the circumferential direction of the wheel caused by disposing the air pressure sensor unit by another unbalance mass distribution of the wheel in the circumferential direction caused by disposing sub air chamber member; and wherein the sub air chamber member includes a bottom plate curved along a width direction of the wheel in which the curved bottom plate protrudes inward in a radial direction of the wheel with a predetermined spring constant, the rim includes a pair of channels, in vertical walls on a well of the rim, having openings facing each other extending in a circumferential direction of the wheel with a predetermined width corresponding to the width of the curved bottom plate, in which edges of the bottom plate are fitted into the channels, and the bottom plate expands in the width direction to generate pressure force applied to the channels to increase fixing forces when centrifugal force is generated by rotation of the wheel.