| 摘要 |
A pneumatic tire for a vehicle is provided with a pressurizable inner casing having luglike members on the peripheral surface thereof, and a non-pressurizable outer casing having openings through the peripheral portion thereof and adapted to fit over the inner casing, with the luglike members of the inner casing fitting through the openings and normally protruding beyond the outer surface of the outer casing but depressible flush therewith when the members meet the roadbed by the normal pressure due to the weight of the vehicle. The resulting multi-purpose tire is advantageous for use on dry roads as well as slippery roads.
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