Hydroform structural reinforcement system

Details Hydroform structural reinforcement system Hydroform structural reinforcement system

B - Operations, Transporting

62

D

B62D 29/00 (2006.01)

Patent

CA 2424041

A structural reinforcement system (10) for use with hydroform tubes (18) and other closed forms having a purality of members (12) designed to be secured to a closed form, such as an hydroform tube (18) used in automotive applications. A bonding material (14), such as an epoxy-based reinforcing foam, is disposed on at least a portion of the outer surface of each of the plurality of members. Once the system is attached to the closed form, the foam expands and cures during an automobile assembly operation, bonding the reinforcement system to the hydroform tube and the members. As a result, the reinforcement system provides enhanced load distribution over the vehicle frame without adding excessive weight and further serves to reduce noise and vibrational characteristics of the automotive vehicle.

La présente invention concerne un système de renfort Hydroform (10) destiné à des tubes Hydroform (18) et d'autres formes fermées comportant une pluralité d'éléments (12) conçus pour être solidarisés à une forme fermée, telle qu'un tube Hydroform (18) utilisé dans des applications de l'industrie automobile. En l'occurrence, on prend matériau de liaison (14) tel qu'une mousse de renfort à base d'époxy, et on la dispose sur au moins une partie de la surface extérieure de chaque élément de la pluralité d'éléments. Une fois que le système est fixé à la forme fermée, la mousse prend du volume et durcit pendant une opération de montage de l'automobile, ce qui crée un lien fort du système de renfort avec le tube Hydroform et les éléments. Cela fait que le système de renfort assure une meilleure distribution de la charge dans l'ensemble du châssis de l'automobile, sans surpoids notable, tout en permettant de réduire le bruit et les phénomènes vibratoires affectant l'automobile.

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