Front jaw for safety ski bindings

Claim 1

In a safety ski binding, a toe holding device comprising a baseplate secured to the top surface of the ski and having a front end and a rear end, a pivot pin projecting upwardly from said baseplate adjacent the rear end thereof, housing means mounted on said pivot pin and extending generally forwardly thereof and having a horizontal bore therethrough and a bottom curved slot into which said pivot pin extends, a swivel jaw having a top portion disposed above said housing means, vertically extending pivot means connecting said top portion of the swivel jaw to said housing means adjacent the front End thereof, said swivel jaw having a rear portion extending downwardly from said top portion at the rear end thereof, lateral projections on said rear portion of the swivel jaw extending downwardly therefrom and normally engaging the rear end of said baseplate, a sole holder secured to the rear side of said downwardly extending portion of the swivel jaw, a V-shaped guide surface in the font side of said downwardly extending portion of the swivel jaw, spring means in said bore in the housing means, and a roller rotatably mounted at the rear end of said spring means and being biased by said spring means into engagement with said V-shaped guide surface, said roller normally occupying a position in engagement with the apex-portion of said V-shaped guide surface and being shiftable in relation thereto in either direction under the influence of an extraneous force on said swivel jaw not exceeding a predetermined amount during movement of said pivot pin in said curved slot and increase of the bias force of said spring means, whereupon one of said lateral projections snaps over the respective rear end corner of said baseplate and thereby causes said swivel jaw to suddenly release the sole holder with said roller resuming its position at the apex of said guide surface under the action of said spring means.