| 摘要 |
<p>Crash helmets for motorcyclists and sportspeople in general of the type with a liftable visor (2), provided with a safety device for locking and supporting the visor, comprising a groove or through slit (4) positioned near the lower edge of the eye opening and suitable to constitute a sliding and guide seat for a translable sliding element (6) provided with a locking and supporting flange (8), which flange has on the back a restrain tooth suitable to engage, in closed position, a corresponding step (10) frontally provided on a flap (11) protruding from the edge of the visor (2) and on the top a support seat (14) suitable to cause the lower base of said flap (11) to rest on it. <IMAGE></p> |
