| 摘要 |
Anti-fog visors assembly comprising at least an external visor (5) and at least an internal visor (6) at least partially kept in abutment on the internal surface of said external visor by way of mechanical retaining means. Said mechanical retaining means comprise at least two retainers (1, 1') coupled to the external visor, wherein the internal visor is lodged, and is retained. Advantageously, at least one of the two retainers is a pin (1) rotatable with respect to the internal visor, and which comprises a portion (4) for the engagement with the some internal visor, which has at least a region for the loose engagement and at least a region for the tight engagement (15), depending on the rotation angle reached by the rotatable pin. Moreover, the aforesaid rotatable pin is jointed to means (3) for imposing its rotation which extend to the outside of the external visor.
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