| 摘要 |
A wheel assembly includes a rim having lateral sides separated by a predetermined distance, a first flange extending inwardly a predetermined length from each of the lateral sides, a second flange spaced from the first flange and extending inwardly a longer predetermined length than the predetermined length of the first flange, wherein the first flange and the second flange define a nest, and flutings having a cross-section traversing at least a portion of the distance between the lateral sides adjacent the second flange; and a sealing device including a piece of elastic material fitted over the channel in the nest. The piece of elastic material includes a first face surface and a second face surface, wherein the first face surface includes a length shorter than a length of the second face surface, and wherein the first face surface and the second face surface are joined to opposite side surfaces. The nest includes an open area defined by the first flange having an upper surface. The cross-section of the channel have a dove-tailed shape. A tire, mounted on the previously described rim, includes a bead having side surfaces fitted against the lateral sides of the rim, wherein the bead includes protuberances extending inwardly over at least a portion of the first face surface of the piece of elastic material, and presses against the piece of elastic material; the bead is partially seated on a first seat formed by the first flange, and the piece of elastic material is at least partially seated on a second seat formed by the second flange.
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