Reinforced structural assembly

Details Reinforced structural assembly Reinforced structural assembly

B - Operations, Transporting

62

D

B62D 25/00 (2006.01) B62D 29/00 (2006.01) E04C 2/26 (2006.01)

Patent

CA 2359993

A stiffener (18) is provided for reinforcing a hollow structure (10) having a pair of spaced walls. The stiffener includes a carrier member (22) with a layer of expandable polymer (20) which creates a structural foam when the polymer is later expanded. The stiffener (18) could comprise a single laminate shaped to fit in the appropriate locations of the hollow structure (10) so that when the polymer (20) is expanded it forms a structural foam intimately bonded to the pair of spaced walls. The stiffener may also be in the form of a corrugated frame (80) wherein individual laminates (82) are provided with notches (92) to permit the individual laminates (82) to be interlocked with each other at the notches (92).

L'invention concerne un raidisseur (18) destiné à renforcer une structure creuse (10) dotée d'une paire de parois espacées. Le raidisseur comporte un élément support (22) doté d'une couche d'un polymère expansible (20) qui forme une mousse structurelle lorsque le polymère est ultérieurement expansé. Le raidisseur (18) peut comporter un laminé unique, formé de façon à s'insérer dans les emplacements appropriés de la structure creuse (10), de sorte que le polymère (20), lorsqu'il est expansé, forme une mousse structurelle intimement liée à la paire de parois espacées. Le raidisseur peut également être une armature ondulée (80) comportant des laminés individuels (82) qui présentent des encoches (92) permettant un interverrouillage.

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