| 摘要 |
A wheel having a tire installed thereon and capable of regulating a pressure of gas inside a tire without feeding gas from the outside, wherein one or more hollow portions are provided in the wheel, at least one portion is formed as a sealed one, an atmospheric pressure inside the sealed portion is set higher than the atmospheric pressure inside the tire, and the high pressure gas is fed into the tire, and the sealed portion is formed by making hollow a spoke portion or by providing a hollow part at a rim part; as an example, a spoke sealing portion (4) is formed in four spokes of the wheel (1), a gas passage (12) is formed in each spoke, and an opening (13) is provided so as to communicate with a tire sealing portion (5), these sealing portions communicate with each other through a directional switching valve, an air valve (10) is provided at the end part of the directional switching valve and compressed air is filled into each sealed portion and, when a tire pressure is increased, the directional switching valve is operated to communicate a high pressure spoke sealed portion to a gas passage so as to fill high pressure gas into the tire by a pressure difference.
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