SAFETY BINDING FOR A BOOT ON A SKI

Abstract

An assembly for binding a boot to a ski, including a front retaining element that is releasable when the forces to which the front retaining element is subjected are greater than the prestress value of a first spring, a rear retaining element that is releasable when the forces to which the rear retaining element is subjected are greater than the prestress value of a second spring, the rear retaining element being mounted on a slide, and an electronically controllable additional release device. The additional release device includes a rotatable actuation mechanism, in the form of an electric motor. The additional release device includes a bar fixed to the rear retaining element or to the front retaining element, and is capable of moving longitudinally between an open position and a closed position, in reaction to the actuation of the additional release device.

Description

BRIEF DESCRIPTION OF DRAWINGS

The invention will be better understood from the description that follows, with reference to the annexed drawings, and in which:

FIG. 1 is a perspective view of a first embodiment of the invention;

FIG. 2 is a perspective, partial cross-sectional view of the additional release device according to the first embodiment of the invention, when it is in the “closed” position;

FIG. 3 is a view similar to FIG. 2, when the supplemental release device is in the “open” position;

FIG. 4 is a perspective, partial cross-sectional view of the additional release device according to a second embodiment of the invention, when it is in the “closed” position;

FIG. 5 is a view similar to FIG. 4, when the additional release device is in the “open” position;

FIG. 6 is a perspective, partial cross-sectional view of the additional release device according to a third embodiment of the invention, when it is in the “closed” position;

FIG. 7 is a view similar to FIG. 6, when the additional release device is in the “open” position;

Claims

1. An assembly for binding a boot to a ski comprising: a front retaining element comprising a first spring adapted to be set at a prestress value, said front retaining element comprising a first release device releasable in response to an applied force greater than said prestress value of said first spring;a rear retaining element comprising a second spring adapted to be set at a prestress value, said rear retaining element comprising a second release device releasable in response to an applied force greater than said prestress value of said second spring; andan additional release device, said additional release device being electronically controllable;said additional release device comprising an electric motor.

2. An assembly for binding a boot to a ski according to claim 1, wherein: said additional release device is operatively connected to at least one of the front and rear retaining elements;each of the front and rear retaining elements is movable through at least one release movement path;said electric motor of said additional release device only initiates movement of at least one of the front and rear retaining elements through said release movement path, a remainder of said movement being caused by pressures exerted on said one of the front and rear retaining elements other than by said electric motor.

3. An assembly for binding a boot to a ski according to claim 1, further comprising: a slideway, at least one of the front and rear retaining elements being mounted to slide in said slideway;said additional release device comprising a bar connected to said one of the front and rear retaining elements, said bar being longitudinally movable between an open position and a closed position in reaction to actuation of said additional release device.

4. An assembly for binding a boot to a ski according to claim 3, wherein: said additional release device comprises a tripper; andsaid bar comprises a pin adapted to be retained in the tripper.

5. An assembly for binding a boot to a ski according to claim 3, wherein: said additional release device comprises a mechanism to automatically reset the tripper.

6. An assembly for binding a boot to a ski according to claim 5, wherein: said mechanism to automatically rest the tripper comprises a contactor actuated by said bar when said bar is in the closed position.

7. An assembly for binding a boot to a ski according to claim 3, wherein: said additional release device comprises: a plate rotationally driven about a first axis by said electric motor;a first connecting rod fixed to said plate and to said bar.