| 摘要 |
A helmet includes a cap body, a shield plate pivotally mounted at left and right opposite ends on the cap body for pivotal movement between a closed position for closing an opening in the front wall of the cap body and an opened position for opening the opening in the front wall, and a visor which is attached at its left and right opposite ends to the cap body, a tip end of the visor being located at a position forwardly above the opening in the front wall, thereby defining a housing chamber between the visor and the cap body for receiving the shield plate when the plate is at the opened position.
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