Safety ski binding

Claim 1

A safety ski binding comprising a hollow body to be mounted on a ski, a yoke pivoted on said body about a horizontal cross-pin which extends transversely with respect to the ski, a boot-retaining jaw unit carried by the yoke and capable of lateral pivotal displacement on each side of the axis of the ski, a locking lever mounted within said body and pivoted about a horizontal cross-pin which extends transversely with respect to the ski, a spring housed within said body and adapted to produce action in opposition to the locking lever so as to ensure that said lever prevents lateral pivotal displacement of the jaw unit while at the same time preventing upward displacement of the assembly consisting of said jaw unit and said yoke by means of a guide ramp, wherein the jaw unit is guided in sliding motion within the yoke in the longitudinal direction of the ski and wherein said jaw unit is normally maintained stationary and prevented from moving in a lateral direction by two bearing means which are associated with said jaw unit and complrise: a first bearing means directed toward the ski boot and adapted to cooperate with a first complementary support which is rigidly fixed to the yoke; and a second bearing means directed away from the ski boot and adpated to cooperate with a second complementary support which is rigidly fixed to the locking lever; said first bearing means comprising a pair of vertical grooves cut in the jaw unit symmetrically with respect to the axis of the ski, said first support comprising a pair of vertical cylindrical rods attached to the yoke and spaced at a distance from each other which corresponds to the distance between said grooves, the jaw unit having a front extension on the side remote from the ski boot, said extension having a vertical opening having an approximately rectangular contour and traversed by said vertical cylindrical rods, and said grooves being cut in that wall of said opening which is located on the side remote from the ski boot.