| 摘要 |
<p>A crash helmet for motor-cyclists with a visor fixing system made up by an annular projection (9) integral with the visor (8), two recesses (11a, 11b) formed on said annular projection (9), and two fins (12a, 12b) integral with the base element (2) mounted on the crash helmet. A cover element (13) is mounted on the base element (2) by means of sliders (14a, 14b) engaging respective seats obtained on the base element. The cover element has a limit stop which prevents the visor from rotating to the position in which the fins (12a, 12b) are aligned with the recesses (11a, 11b), because in that case the annular projection (9) would detach itself from the circular groove (10) of the base element (2). The crash helmet has also a safety locking system of the visor and a ventilation system, which are both improved.</p> |
