| 摘要 |
This helmet is of the type comprising a crown 2, 3 intended to cap the top part and the sides of the head and the nape of the neck of the wearer, and having a crest 5, that is to say a central longitudinal rib projecting from its outer face. According to the invention, it is equipped with a face-protecting screen 14 which is at least partially retractable inside the crown 2 of the helmet and which comprises a central longitudinal hump 15 permitting the passage and the accommodation of the wearer's nose, whilst the crest delimits, at least in the front part of the helmet, a groove 6 which is open inwards and towards the front of the helmet and which serves to at least partially accommodate the hump 15 of the screen 14 when the latter is in a retracted position. <IMAGE>
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