Wheel assembly, wheel and wheel condition determining apparatus

摘要

An air pressure inside a tire (16) is positively adjusted in an optimum state. In a wheel assembly (14), a tire (16) is attached to a wheel (18). A pressurizing means is provided in the wheel assembly for pressurizing air inside the tire (16). A depressurizing means is also provided in the wheel assembly (14) for depressurizing the air inside the tire (16). A pressurization limiting means is provided in the wheel assembly (14) for limiting an operation of the pressurizing means in accordance with a pressure of the air inside the tire (16).