Patent ID: 7596892

Claim:
A snow plough comprising: a snow blade made of a flexible material and which works in a curved form, the snow blade having a lower edge, an upper edge, and a radius of curvature between the lower edge and the upper edge; and a suspension for the snow blade including a body, a rigid lower beam fixed to the lower edge of the snow blade and to the body, an upper beam supporting the upper edge of the snow blade, a suspension means secured to the body for suspending the snow blade from the upper beam essentially from only a near-middle suspension spot of the snow blade and for allowing the upper beam and the upper edge of the snow blade to tilt relative to the body depending on a dynamic plowing load experienced by the snow blade and hence for allowing the snow blade to dynamically change the radius of curvature at least of a blade portion extending downwardly from the suspension spot toward the lower edge.