| 摘要 |
A mobile unit for a kitten or similar animal includes at least two freely suspended rods, one of which is suspended from the other, with unequal torques applied about their off-center suspension points so that both rods, at rest, are skewed relative to horizontal. Pulling, tugging or otherwise disturbing a toy-like member, suspended from the lower rod, causes both rods to dip and bob irregularly in addition to rotating. This compound irregular motion, in both horizontal and vertical planes, is translated to the toy-like member with the result that the cat or other animal is attracted thereto. The mobile unit may be suspended from a door-way and the applied torques and suspension lengths may be made adjustable.
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