Abstract: Safety binding for a ski boot, comprising a jaw having two arms (3, 4) which are independent so as to open in an opposite manner to one another when the boot is put on and are capable of retaining the boot vertically via its projecting sole (10), the jaw being able to pivot laterally counter to the action of a return spring. The arms (3, 4) bear on the upper (11) of the boot, while the sole (10) bears on front-bearing means (12, 13) which are located either on the arms or on the base (1).

Abstract: A binding (8) has a lower surface (15) has a width (L5) and is mounted on an upper surface of a ski (2) of width (L2). The width of the lower surface (15) is less than or equal to the width of the ski (2). A support body (9) diverges in width along lateral boarders (19, 20) from the lower surface (15) to an upper surface (18) of width (L4). The upper surface supports an anti-friction plate (10) that defines a support zone (17) of width (L3). The width (L3) of the support zone (17) is greater than width (L5) of the lower surface (15) and the width (L2) if the ski (2).

Abstract: Jaw-type binding consisting of two arms (5, 6) which are mounted in order to pivot independently and forming a lever acting on the end of a rod (12), the other end of which is connected to a stop (14) which is secured to the rod and is retained by a spring (16) whose preload can be adjusted by moving the stop, on which there is an index (15) cooperating with a graduation (22) on a plate (20). The front end of this plate bears elastically (24, 25) against the body (3) of the binding, so as to follow movement of the rod when the boot is engaged, in such a way that the display of the preload of the spring is not modified by the engagement of the boot.