Binding toe-piece for gliding board

Toe piece for binding a boot on a gliding hoard comprising:

• a chassis having a lower surface configured to be affixed to the gliding board;
• a body movably mounted on the chassis;
• a sole-clamp movably mounted on the body and capable of coming into contact with art upper surface and at least one lateral portion of a front or rear portion of the boot, when the boot is engaged with the toe-piece;
• a lateral release mechanism comprising at least one first elastic mechanism acting on the sole-clamp to return the sole-clamp to a configuration of engagement with the boot;
• a vertical retention mechanism comprising a second elastic mechanism, distinct from the first elastic mechanism, arranged so as to continuously exert a return force on the body in order to bring the sole-clamp back toward the lower surface of the chassis, the return force producing a force pressing the sole-clamp on the hoot when the boot is engaged with the binding;
• at least one cam kinematically inserted between the second elastic mechanism and either the chassis or the body;
• the cam having a shape configured to modify, depending on a position of the body in relation to the chassis, a direction of the return force exerted by the second elastic mechanism on the body so as to attenuate a variation in the pressing force when the sole-clamp is moved away from the lower surface of the chassis
• wherein:
• the body is pivotally mounted on the chassis about an axis of rotation crosswise to a longitudinal axis of the chassis;
• the cam has a shape configured to modify the direction of the return force exerted by the second elastic mechanism on the body so that a distance between the direction of the return force and the axis of rotation of the body differs as a function of the angle of inclination of the body in relation to the chassis;
• and wherein:
• the axis of rotation of the body is positioned in an area of the upper portion of the body, above the first elastic mechanism of the lateral release mechanism.