Windbreak eye shield

An eye shield assembly, disposed with respect to an aperture in a helmet, said assembly comprising:

• means for pivotally mounting the shield on said helmet between a functional position defining a first solid angle of vision with protection for the user's eyes, and a rest position defining a second solid angle, smaller than said first solid angle;
• wind pressure sensing means disposed to control the position of said shield between said functional position and said rest position from air flow outside said helmet;
• control means associated with said wind pressure sensing means, said control means having a first pressure threshold causing said shield to pivot from the functional position to the rest position and a second pressure threshold causing said shield to pivot from the rest position to the functional position;
• and
• means for pivoting the shield from the functional position to the rest position and from the rest position to the functional position in response to said control means.