Fabric valve

B - Operations – Transporting – 60 – R

Patent

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Details

B60R 21/26 (2006.01)

Patent

CA 2467744

A fabric valve (200) is disclosed that is made of a fabric blank (210) folden in a pattern that promotes the flow of fluid in one direction (350) along an axis of the fabric valve (200) but restricts the flow in the opposite direction along the same axis. The fabric valve (200) is easy to construct and is made by a series of folds (218, 220, 222). The fabric valve (200) may be particularly suitable for use with inflatable safety devices (530) used in vehicles, such as air bags and air curtains, to restrict backflow of gas from a given air bag when pressure is applied to the bag. A method of making the fabric (200) valve and a system incorporating the fabric valve (200) are also disclosed.

L'invention concerne une soupape de tissu (200) qui est fabriquée à partir d'une découpe de tissu (210) pliée selon un modèle qui facilite l'écoulement du fluide dans un sens (350) le long d'un axe de la soupape en tissu (200) mais restreint l'écoulement du fluide dans le sens opposé le long du même axe. La soupape de tissu (200) est facile à construire et se compose d'une série de plis (218, 220, 222). Cette soupape (200) peut être particulièrement appropriée pour être utilisée dans des dispositifs de sécurité gonflables (530) utilisés dans des véhicules, comme des air bags et des rideaux d'air, pour limiter le retour de gaz à partir d'un air bag donné lors de l'application de pression à un air bag. L'invention traite d'un procédé de fabrication de la soupape de tissu (200) et d'un système intégrant la soupape de tissu (200).

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