| 摘要 |
A vehicle (10) having a plurality of spaced-apart wheels (16), each wheel (16) being attached to the vehicle (10) by means of an axle (22), there being a separate axle (22) for each wheel (16), each axle having a longitudinal axis; the arrangement being such that rotation of one axle (22) about its longitudinal axis will cause the wheel (16) mounted thereon to change direction relative to the vehicle (10), each axle (22) having attached thereto a driven means (26), each driven means (26) being adapted to be driven by a drive means (28, 32) such that rotation of one axle (22) causes all other axles (22) to also rotate about their longitudinal axis.
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