| 摘要 |
<p>PROBLEM TO BE SOLVED: To replenish air automatically or by a switch when the tire air pressure of a vehicle drops. SOLUTION: A compressor 3 fitted to a vehicle is actuated using part of driving force of the vehicle, and compressed air is fed to a tire through an air hose 8 built in the vehicle and connected to the tire. Further making use of the fact that the grounding part of the tire is recessed by the weight of the vehicle at the time of making the vehicle travel, a compression type air pump built in a tire part is actuated to automatically replenish air.</p> |
