| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve a problem of a conventional tire that the air pressure drops automatically if left as it is and the air must be refilled from the outside. <P>SOLUTION: A built-in contraction air pump is compressed by deformation pressure by concave deformation of the grounding surface of the tire with the ground by the reduced share of the air pressure whenever a tire runs, and the air inside the pump is refilled into the tire through an exhaust valve. In the tire with built-in automatic air refill pump, in the upper part of the tire grounding surface, because the tire is expanded, the pump expands by a spring within the pump, the air is sucked from the outside through a tire valve and is refilled into the pump, however, if the air pressure becomes normal, the deformation of the grounding surface decreases, the pump is not compressed and air refilling to the tire also decreases. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
