Protective headgear and protective armour and a method of...

A - Human Necessities – 42 – B

Patent

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Details

A42B 3/06 (2006.01)

Patent

CA 2453114

The present invention provides protective headgear comprising a shell (26) having an inwardly facing surface which in use faces the head (10) of a user of the headgear and an outwardly facing surface which in use faces away from the head (10) of a user. An outer layer (28) overlies at least a portion of the outwardly facing surface of the shell (26) and rupturing means (30) is provided for fixedly attaching the outer layer (28) to the remainder of the headgear at one or more locations. The rupturing means (30) is configured so as to fail when a force greater than a selected threshold is received on an outer surface (28) of the headgear which acts in an at least part tangential direction to rotate the headgear and the head (10) of the user. Upon failure of the rupturing means (30) at the one or more locations, the received force causes at least part of the outer layer (28) receiving the force to move relative to the shell (26) in a manner which is similar to the protective movement of the human scalp (18) relative to the skull (16). The present invention also relates to protective armour (100) and to a method of modifying protective headgear and protective armour.

L'invention concerne un caque de protection qui comprend une calotte (26) possédant une surface tournée vers l'intérieur qui durant l'utilisation est tournée vers la tête (10) d'un utilisateur du casque, et une surface tournée vers l'extérieur qui durant l'utilisation est tournée dans la direction opposée à la tête (10) d'un utilisateur. Une couche extérieure (28) recouvre au moins une partie de la surface tournée vers l'extérieur de la calotte (26) et un moyen de rupture (30) permet de fixer la couche extérieure (28) au reste du casque au niveau d'au moins un emplacement. Le moyen de rupture (30) est conçu pour lâcher lorsqu'une force supérieure à une valeur seuil choisie est exercée sur une surface extérieure (28) du casque, laquelle agit dans une direction du moins en partie tangentielle pour faire pivoter le casque et la tête (10) de l'utilisateur. Dès que le moyen de rupture (30) a lâché, la force reçue provoque le déplacement, par rapport à la calotte (26), d'au moins une partie de la couche extérieure (28) qui reçoit la force, de façon similaire au mouvement de protection du cuir chevelu (18) par rapport au crâne (16). Cette invention concerne également une cuirasse de protection (100) ainsi qu'un procédé de modification d'un casque de protection et d'une cuirasse de protection.

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