Secure attachment of a shoe on a ski

Abstract

The device for performing secured binding of a boot on a first ski includes a binding of the boot on the first ski and a control circuit. The binding is configured to facilitate disengagement between the boot and the first ski on receipt of a disengagement signal. A control circuit is configured to:determine an angular deviation between a first direction of the first ski and a second direction of a second ski,determine the forward progression of the first and second skis along the longitudinal axis of each of the skis,calculate at least one parameter from the angular deviation and from the forward progressions of the first and second skis, compare the parameter with a threshold parameter, and transmit the disengagement signal according to the comparison.

Description

BACKGROUND OF THE INVENTION[0001]The invention relates to a device for secured binding of a boot on a ski.State of the Art[0002]Boot bindings, in particular for ski boots, enable a boot to be secured in reliable and removable manner on a ski. Releasing between the boot and the ski is either performed deliberately by the user by means of mechanical means or happens involuntarily when certain forces higher than a predefined threshold are applied on at least one of the parts of the binding, for example in the event of the skier falling.[0003]The predefined threshold of the forces above which the boot disengages from the ski (or is released from its binding) is generally adjustable according to the user's weight, level of ability, physical fitness, etc.[0004]Incorrect adjustment of the bindings results in:[0005]an increased risk of accident by untimely disengagement (or releasing) if the adjustment is too slack,[0006]an increased risk of knee injury in case of falling by failure to dise...

AI Technical Summary

Benefits of technology

The patent text describes a need for a device that can securely bind a ski to a boot and improve the detection of risk situations.

Problems solved by technology

Incorrect adjustment of the bindings results in:an increased risk of accident by untimely disengagement (or releasing) if the adjustment is too slack,an increased risk of knee injury in case of falling by failure to disengage (non-release) if the adjustment is too tight.

In particular, failure to release is the principal cause of sprained knees.

However, such a device does not make the ski boot disengage from the ski in potentially dangerous situations.

In particular, this type of device does not protect the knee in all risk situations as it does not present any possibility of disengagement between the boot and the ski whatever the torques applied on the binding and in particular whatever the axes of these torques.

However, this device presents the major drawback of causing releasing in non-hazardous situations or when a pile of snow between the skis momentarily interrupts the signal.

Inversely, this system makes the binding release too late in hazardous situations.

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