| 摘要 |
The present invention relates to a device preventing the deposition of ice and mist on the visor of a motorcycle helmet. It is characterised in that the transparent plastic visor 2 is open at a part 3 calculated in the direction of the length, allowing the filtration of the air inside the motorcycle helmet and so as to cause circulation of the air along the upper part of the visor, naturally from bottom to top, which is the principle of the invention, only when the motorcycle is moving, and which is facilitated upon re-entry into the helmet (the air) by a wall 4 and, at the exit, also by an orifice 5. The invention applies to the motorcycle industry. <IMAGE>
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