Ski boot toe binding

A ski boot toe binding comprising a base plate adapted to be attached on a ski, a pivot body, a pin extending upwardly from said base plate and through said pivot body thereby pivotably mounting said pivot body on said base plate, a toe holding member swingably mounted on said pivot body for receiving a boot toe, a pair of arms, one at each side of said plate, each pivotably connected at one end thereof to said pivot body and at the other end thereof to said toe holding member, an opening in said pivot body, yieldable means provided in said opening and acting upon said toe holding member to urge the latter to a toe holding center position, a cam plate provided between said base plate and said pivot body and movable from a locking position to an unlocking position, means mounting said cam plate for sliding movement with respect to said base plate and pivot body and for rotating movement about said pin, cooperating interengageable means on said cam plate and said arms normally disengaged with respect to both arms while said toe holding member is in the boot toe holding central position, said toe holding member and one of said arms being adapted to be swung upon the application of a first predetermined force, from the central position thereof through a predetermined stroke to a locking position of the toe holding member where said interengageable means is engaged with respect to one of said arms, and said pivot body is immovably engaged with said base plate, and said cam plate being slidably moved in the lengthwise direction of said base plate by said one arm after said toe holding member is swung beyond said predetermined stroke by the application of a force greater than said first force and assuming a rotated unlocking position where the engagement between said pivot body and said base plate is released, thereby allowing said pivot body to rotate about said pin on said base plate and release said toe holding member from the ski boot toe.