Reinforced structural body and manufacturing method thereof

Details Reinforced structural body and manufacturing method thereof Reinforced structural body and manufacturing method thereof

B - Operations, Transporting

29

C

B29C 33/00 (2006.01) B29C 44/18 (2006.01) B29C 67/24 (2006.01) B62D 29/00 (2006.01)

Patent

CA 2472727

The present invention describes a hollow structural body such as an automotive unibody or frame rail that is reinforced with a reinforcing material such as a polyurethane foam by inserting into a portion of the structural body a bulkhead-containing insert, which, in combination with the structural body at the place of insertion, creates a containment region for the reinforcing material. Uncured reinforcing material can then be added to the containment region and cured. The present invention solves a problem in the art by providing structural reinforcement to be easily and precisely placed within the structural body to provide, for example, enhanced crash resistance or improvements in acoustical properties.

La présente invention concerne un corps structurel creux, par exemple une monocoque ou un longeron d'automobile, renforcé à l'aide d'un matériau de renforcement, par exemple une mousse de polyuréthane, par insertion dans une partie du corps structurel d'un insert contenant une cloison et qui, combiné au corps structurel sur l'emplacement d'insertion, permet de créer une zone de contention pour le matériau de renforcement. Un matériau de renforcement non durci peut alors être ajouté dans la zone de contention, puis durci. La présente invention permet de résoudre un problème de l'état de la technique car elle fournit un renforcement structurel destiné à être placé facilement et avec précision dans le corps structurel, permettant d'obtenir, par exemple, une plus grande résistance au chocs ou des propriétés acoustiques améliorées.

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