| 摘要 |
A vehicle wheel adapted to provide support for a deflated or punctured tyre and allow safe continued use of the assembly. The wheel rim comprises a rigid one piece assembly so that misassembly is avoided and comprises a pair of axially spaced-apart bead seats (1) and (2) each with tyre retaining flanges (3) and immediately inwards of each bead seat (1) and (2) a tyre bead retaining formation. Two tyre fitting wells (7) and (8) are provided with a side of a central rigid circumferentially extending support member (10) which projects radially outwards to contact the inside of the tread of a deflated tyre and provide support. The bead retaining formation is preferably a groove of the type known as TD. |
