| 摘要 |
A rocking device comprising: a base unit; first and second profiled tracks, each defining a close undulating path, the tracks being associated with the base unit; at least one track follower, arranged to interact with at least one of the profiled tracks; a rotation arrangement to impart relative rotational movement between each of the profiled tracks and the track follower, thereby creating relative displacement between the track follower and the base unit; and a support unit carried by the track follower.
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