Helmet

A - Human Necessities – 42 – B

Patent

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Details

A42B 3/12 (2006.01)

Patent

CA 2733991

A helmet, especially a cricket or other sports helmet, comprises an outer shell member and, disposed adjacent its inner surface, a layer comprising an inflatable element operatively connected with inflation means. The layer comprising the inflatable element preferably comprises a plurality of individual cells or pockets defined by a fluid-impermeable plastics membrane material, the individual cells or pockets being mutually in communication for pressurisation and pressure-release purposes and connected to the inflation means. The cells or pockets may contain impact-absorption or cushioning materials which are preferably porous to allow absorption and desorption of the inflation fluid. The helmet exhibits improved resistance to transmission of impact forces compared with conventional helmets.

L'invention porte sur un casque, en particulier un casque de cricket ou pour d'autres sports, qui comporte un élément de coque externe et, disposée adjacente à sa surface intérieure, une couche comportant un élément gonflable relié de façon fonctionnelle à un moyen de gonflage. La couche comportant l'élément gonflable comporte de préférence une pluralité de cellules ou poches individuelles définies par un matériau de membrane en matière plastique imperméable aux fluides, les cellules ou poches individuelles étant en communication entre elles à des fins de pressurisation et de relâchement de pression et étant reliées au moyen de gonflage. Les cellules ou poches peuvent contenir des matériaux d'absorption d'impact ou d'amortissement qui sont, de préférence, poreux pour une absorption et une désorption du fluide de gonflage. Le casque présente une résistance améliorée à la transmission de forces d'impact par comparaison aux casques classiques.

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