Dispositif de fixation de sécurité d'une chaussure sur un ski

摘要

A safety binding device for a boot on a ski has a jaw to hold the sole of the boot against the ski elastically. A latch controlled by an elastic element limits the maximum force supportable by the jaw before it is unlatched to release the boot. The device has at least one ramp against which a friction member is elastically supported to absorb a certain energy whose level increases simultaneously with the increase in the displacement of the jaw before the force exerted by the boot reaches the unlatching value of the elastically controlled latch. A roller or ball is arranged to come into action at the unlatching value of the force, thereby eliminating the action of the friction member. The ramps may be straight or curved. The friction member can be a ball, roller or sliding wedge. Manual release and resetting levers may be incorporated.