Headset Including a System for Securing the Visor by Microfibres

Abstract

The invention relates to headsets comprising at least a supporting shell and a moving visor that can be displaced between two extreme positions.The headset includes a system for securing the visor in any position between the two extreme positions by friction between the visor and the supporting shell, the friction being produced by at least one microfibre felt element.The invention applies to the field of headsets in general for users of motorized craft such as in aeronautics and automobiles for example.

Description

PRIORITY CLAIM[0001]This application claims priority to French Patent Application Number 08 05768, entitled Headset Including a System for Securing the Visor by Microfibres, filed on Oct. 17, 2008.FIELD OF THE INVENTION[0002]The field of the invention relates to headsets comprising at least one supporting shell and a visor.BACKGROUND OF THE INVENTION[0003]A headset for aircraft pilots, notably of fighter aeroplanes, is generally multifunction and is equipped with visors. Such a headset comprises a rigid supporting shell which generally surrounds the top, the back and the side portions of the wearer's skull. The headset generally includes visors through which the wearer of the headset can see his environment; these visors are more often than not retractable towards the top of the skull and provide protection for the face against various attacks (wind, dust, light or violent lighting, etc.). For night flights, a night vision system can also be inserted in front of the eyes of the wear...

AI Technical Summary

Benefits of technology

[0007]The aim of the invention is to propose a system for securing the visor, and more generally any removable element positioned on the supporting shell, making it possible to improve the resistance in piloting operation.

[0009]The microfibre felt elements have a surface area that is big enough to produce a friction force between the supporting shell and the headset visor making it possible to secure the visor in any position. The friction resistance is sufficient for the visor to be secured in its position regardless of the severe military flight operation conditions.

[0011]The use of friction surface by microfibre felt makes it possible advantageously to produce a continuous friction force between the supporting shell and the visor over the entire displacement of the visor. The pilot can thus secure the visor in any position by an immediate manipulation.

[0012]The use of microfibre felt also makes it possible to locate the friction force on the centre of gravity of the visor, generally corresponding to the upright of the visor. The friction force needed to secure the visor in its position then becomes weaker and makes it possible to secure the visor more effectively. This makes it possible to avoid the noises caused by mechanisms that have too much vibration play.

[0020]The invention also relates to visors that include a microfibre felt element making it possible to produce a friction resistance with a standard headset.

Problems solved by technology

The problem that arises for visored headsets is securing the visor in any position.

In practice, because of their weight and the severe usage stresses on board military aircraft, particularly the vibrations and temperature variations, the visors are difficult to secure.

The distance between the centre of gravity of the visor and its centre of gravity is also a cause that can tend to cause the visor to drop.

This system is difficult to adjust and varies with temperature.

It also has the drawback of sliding under vibration.

This system is also fairly hard to manoeuvre, so it may hamper the pilot in his mission.

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