| 摘要 |
<p>A visor 26 for a helmet 22 comprises: an air delivery element 34 for delivering air to a surface of the visor 26; the air delivery element 34 includes: at least one inlet 42 for receiving air from an air source; and a plurality of outlets 44 through which air is transportable to the surface of the visor 26; the visor also includes a ridge (84, fig 8) formed adjacent to the plurality of outlets 44 for creating a Coanda effect in air passing through the plurality of outlets 44. A visor including a connector 36 for connecting to a helmet 22 is also disclosed herein the connector 36 includes a channel (76, fig 7) which transports air from an air source to an air delivery element 34; the connector 36 is preferably a pivoting connector. The visor 26 may be used with a helmet 22 which includes air passages 40 and a connection port 28 which may be used to connect an external air source (30, fig 1).</p> |
