| 摘要 |
<p>Disclosed is a protective headgear (10) for an aviator. The headgear includes a helmet (12) adapted to be worn by the aviator, a visor (13) and a mechanism (16) for mounting the visor (13) to the helmet (12). The mounting mechanism (16) is defined by a pair of gear train assemblies (44), one of which is mounted to each side of the helmet (12) adjacent to a helmet front opening (20). Each gear train assembly (44) includes multiple gears (46, 48, 50) that allow the visor (13) to be manually moved between a deployed position (14) wherein the visor (13) covers a portion of the helmet front opening (20) to protect the aviator's face and eyes, and a stowed position (15) wherein the visor (13) is completely clear of the helmet front opening (20) so as to not obstruct the forward view of the aviator.</p> |
