Ski safety binding

A ski safety binding for protecting a skier during skiing against both a dangerous bending moment acting on a leg of the skier at an endangered section of the skier's leg and a dangerous torsional moment acting about the leg, said ski safety binding comprising:

• a sole plate;
• a ski boot securing system carried by said sole plate for releasably securing a ski boot to said sole plate;
• mounting means for mounting the sole plate on a ski having an upper surface and a longitudinal direction, for limited displacement in said longitudinal direction, and for limited pivotal movement about a transverse axis and about a vertical axis extending substantially along the skier's leg;
• guide means disposed between said sole plate and said ski and displaced in said longitudinal direction from said vertical axis, said guide means including an inclined guide extending at an inclined angle to said upper surface of the ski in a vertical plane including said longitudinal direction and a transverse guide extending in a direction transverse to said inclined guide;
• first retaining means for retaining the sole plate in a specified position along said inclined guide;
• second retaining means for retaining the sole plate in a specified position along said transverse guide;
• first resilient means permitting resilient deflection of said first retaining means on the occurrence of excessive forces thereon due to said bending moment to allow movement of said sole plate along said inclined guide;
• second resilient means permitting resilient deflection of said second retaining means on the occurrence of excessive forces thereon due to said torsional moments to allow limited movement of said sole plate along said transverse guide, and sensor means responsive to said limited movement along said inclined guide and to said limited movement along said transverse guide to release said boot securing system.