Safety binding of a boot on a ski

In a security binding of a boot on a ski comprising two lateral clamps displaceably mounted under the action of a resilient member between a closed service position, in which these clamps cooperate with the sole of the boot, and an opened position, links interconnecting the resilient member and the clamps, means pivotally connecting the links to the clamps for relative swinging movement about axes perpendicular to the plane of the ski, and an arm extending from an end of each clamp lengthwise of the ski and pivotally mounted at its end remote from the clamp for swinging movement about an axis perpendicular to the plane of the ski;

• the improvement comprising means pivotally interconnecting each clamp and its associated said arm for relative swinging movement about an axis perpendicular to the plane of the ski.