Impact energy absorber

F - Mech Eng,Light,Heat,Weapons – 16 – F

Patent

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Details

F16F 7/12 (2006.01) B60J 5/04 (2006.01) B60R 21/04 (2006.01) B62D 21/15 (2006.01)

Patent

CA 2219733

An object of the present invention is to efficiently absorb the energy of an external force applied to a vehicle body without an appreciable increase in weight of an automobile. The impact energy absorber is a metal pipe whose cross section is circular, and provided with concaves and convexes on both of the front and back surfaces in a spiral form or bellows form. This energy absorber is bonded to the room-side surface of an outer panel of the vehicle body or the inner panel using an adhesive or the like. When an external force is applied to the energy absorber through the panel face of the vehicle body, the energy absorber can absorb the energy of the external force by being deformed plastically. At this time, when occupants are hit against the panel and the like and indirectly against the energy absorber, the energy absorber can absorb the kinetic energy of occupants by being deformed plastically.

Un des objets de la présente invention est d'absorber efficacement l'énergie appliquée sur la carrosserie d'un véhicule par une force externe, sans augmenter de façon appréciable la masse du véhicule. L'amortisseur est un tuyau métallique à section circulaire dont les deux faces portent des renfoncements et des saillies en forme de spirale ou de soufflet. Cet amortisseur est collé à la surface intérieure d'un panneau de carrosserie extérieur ou au panneau intérieur, au moyen d'un adhésif ou d'un moyen analogue. Lorsqu'une force extérieure est appliquée à l'amortisseur à travers le panneau de carrosserie, l'amortisseur absorbe l'énergie transmise par la force extérieure en subissant une déformation plastique. Ainsi, lorsque les occupants sont projetés contre le panneau et une surface analogue, et indirectement contre l'amortisseur, ledit amortisseur peut absorber l'énergie cinétique des occupants en subissant une déformation plastique.

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