Abstract: A safety binding for attachment of a ski to the boot of a skier in which is provided a plate coextensive with the length of the boot pivotally attached to the ski at the center or rotation of the leg of said skier and a heel holding element having resilient securing means for holding the heel under torsional and tensile loads. A single system is provided for release of the securing means which operable in response only to a pulling force resulting from a tensile load on the leg and a coupling system for converting the rotation of the plate in response to a torsional movement of said leg into a pulling force.

Abstract: A safety ski binding is designed so that the ski boot resting on a plate joined permanently but pivotally to the ski is secured only by a single holding element, which is designed as a heel element. This holding element is joined to the ski so that it can be swivelled toward all sides, and has a release mechanism which releases the ski boot both in case of forward falls and in case of torsional falls. The release characteristic can be differently adjusted in different directions in accordance with the tensile and torsional stresses to which the leg is subjected.