| 摘要 |
PCT No. PCT/US81/00758 Sec. 371 Date Jun. 8, 1981 Sec. 102(e) Date Jun. 8, 1981 PCT Filed Jun. 8, 1981 PCT Pub. No. WO82/04224 PCT Pub. Date Dec. 9, 1982.In many designs, a tire (14) of a wheel (10) is inadequately restrained with respect to a tire supporting rim assembly (12) of the wheel. Movement of the tire (14) with respect to the rim assembly (12) results in a wastage of energy. In the present invention a wheel assembly (10) has a rim assembly (12) and a tire (14) mounted on the rim assembly (12). The rim assembly (12) has an annular elastic element (22) affixed thereto for increasing the coefficient of friction between said rim assembly (12) and the tire (14).
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