| 摘要 |
A stroller includes a frame and a plurality of hubless wheels. A seat is disposed on the frame. The hubless wheels are disposed on the frame. The hubless wheel includes a rim, an internal sliding structure and at least one bridging component. A tire is disposed on the hubless wheel. The rim has an external sliding structure on an inner surface of the rim. The internal sliding structure is disposed inside the external sliding structure. The bridging component is disposed between the external sliding structure and the internal sliding structure. The bridging component revolves on its own axis.
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