Apparatus for mounting ski bindings

In an apparatus for facilitating a mounting of ski bindings onto skis, including a plate and a jaw member fastened to the plate, a centering pin on the plate, the plate being releasably fastened by a fastening means to the upper side of a ski, and wherein the fastening means include two or more fastening elements and two or more receiving parts for the ends of the fastening elements, which ends are on a side of the plate which is remote from the ski binding, the receiving parts being built into the body of the ski, the improvement wherein each receiving part includes at least one of an elliptic slotted hole and an elongated T-shaped recess, each being provided with at least one undercut step, and wherein each fastening element is arranged on at least one of the jaw member and the plate and has a locking member at an end region thereof remote from the aforesaid at least one of the jaw member and the plate, which locking member has a larger dimension in one direction compared with said at least one of the recess and the slotted hole of the individual receiving parts, and which locking member, when, viewed in the mounted state of the ski binding, engages the undercut step, wherein at least one of said fastening means is rotatable for facilitating a movement of said larger dimensioned portion of said locking member thereof between a first position aligned with a major axis of said at least one of said elliptic slotted hole and said elongated T-shaped recess extending parallel to a longitudinal axis of the ski and a second position transverse with respect to said first position and under said undercut step to thereby facilitate all of said locking members being brought into engagement with said undercut steps, and wherein said elongation of said at lest one of said hole and said recess facilitates a selective positioning of said plate and said jaw member fastened to said plate relative to the ski in a direction parallel to the major axes and before said locking members effect a locking of said plate to the ski at a said selected position, said locking members being capable of effecting said locking of said plate at any position along the length of said elongation.