| 摘要 |
The creation is an adapter device for tandem bicycle. The tandem bicycle consists of the bicycle and the connected bicycle. The adapter device comprises the universal joint and twist apparatus. The universal joint is connected to the scheduled placed of the seat tube, so the reaction force caused by rugged roads can be eliminated by the device when riders make a turn. About the twist apparatus, which links the connected bicycle, the flexible components in the twist apparatus can make the preceding part of bicycle more stable at the start or at low speed in riding, so the bicycle can have good stability and mobility, and is easy to ride.
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