| 摘要 |
The subject of the invention relates to a motorcycle-helmet device with double protective visor. It consists of the combination, firstly, of transparent and tinted visors 4, 5 entrained by guide ramps (profiles), then of a self-braking transmission facilitating progressive or total positioning and, finally, of a double external control. It is intended to enable the user to adapt a protective visor for its customary function as a windscreen or as an anti-dazzle screen. <IMAGE>
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