Adjustable base for a ski binding

A longitudinally adjustable base for a ski binding, comprising a rail (2) for mounting on a ski, a row of teeth (5) extending parallel to the axis of the rail, a plate (3), for carrying a ski-binding element, mounted slidably on the rail and carrying a latch (11) that can be displaced transversely to the rail and is equipped with teeth (12) for engaging selectively in the teeth of the row of teeth in order to immobilize the plate on the rail in a selected position, a lever (18) for entrainment of the latch mounted pivotably on the lower face of the plate (3), and means for holding the latch in a locked position comprising a shoe (26) connected to the lever (18) by a connecting rod (24) forming a knuckle joint with the lever such that in a locked position the shoe is pressed against a support and the lever is held in a locking position, wherein the profile of the teeth of the row of teeth (5) and of the latch is oriented perpendicularly to the plane of the plate (3), wherein the teeth (5) of the row of teeth extend transversely to the rail, occupying at least the greater part of half the width of the rail from one edge of the rail, wherein the latch (11) includes a number of teeth that is substantially greater than two, and wherein the latch (11) is displaceable at least approximately from one side of the rail to the other.