| 摘要 |
An automatic visor control device for a helmet including a movable visor pivotally fixed onto either side of the helmet and covering a window opening in the front side of the helmet, a power device disposed on one side of the helmet, and a wind-pressure switch provided in the lower portion of the front side of the helmet. By means of the wearer's blowing, the power device is activated to cause the visor to move up or down.
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