| 摘要 |
This invention relates to sound emitting wind wheels mounted on the handle bars of a bicycle. The wind wheels spinning horizontally have wind catching pliable cap-like vanes on the external ends of the flexible horizontal support rods attached to a rotatable hub on the top of a vertical shaft. The vertical shaft utilizing a ball-and-socket clamp arrangement to be compatible with various shaped handle bars. The cup vanes incorporating an air operated whistle which is activated by air flow generated by forward movement of the bicycle.
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