| 摘要 |
The invention concerns a device for fixing a helmet (12) on a user's head (10), said helmet comprising a shell (16) with an outer case (17), characterised in that it comprises a front support (20), a double support (22) beneath the mastoid bone, and means (24) for bringing together the double support (22) beneath the mastoid bone and said front support (20). The invention is useful for cycling.
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