Reinforcement for expandable compositions and methods for...

Details Reinforcement for expandable compositions and methods for... Reinforcement for expandable compositions and methods for...

B - Operations, Transporting

29

C

B29C 44/12 (2006.01) B29C 44/18 (2006.01) B29C 44/38 (2006.01) B62D 29/00 (2006.01)

Patent

CA 2425151

A reinforcement for an expandable or foaming material is disclosed that comprises a first (10) and a second (11) member each having protuberances (12) that are contacted when the first and second members are joined. The members are joined by bending a hinge (13) that separates the members, or can be joined in multiple units to form a series. The members are maintained in a closed or joined position by at least one latch (14a,14b). Once joined, the first and second members define at least one opening (15a,15b) wherein a foaming composition can be injected into the joined members. Alternatively, a preformed expandable material can be placed between the first and second members, or located on selected outer positions, e.g., within an automotive cavity to be sealed.

L'invention concerne une structure de renfort conçue pour une matière expansible ou moussante, comportant un premier (10) et un second (11) élément présentant des saillies (12) qui sont en contact lorsque le premier et le second élément sont réunis. La réunion desdits éléments intervient par flexion d'une charnière (13) les séparant ou s'effectue sous la forme d'unités multiples de manière à constituer une série. Lesdits éléments sont maintenus dans une position fermée ou une position de jonction par au moins un verrou (14a, 14b). Une fois rassemblés, le premier et le second élément définissent au moins une ouverture (15a, 15b) permettant l'injection d'une composition moussante dans les éléments réunis. Autre possibilité, une matière expansible préformée peut être disposée entre le premier et le second élément ou placée dans des positions extérieures sélectionnées, par ex. dans une cavité d'automobile devant être scellée.

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