Frame member for motor vehicle has longitudinal beam with notch to allow controlled deformation in crash

Ensemble de structure de caisse comportant des longerons munis de zones d'amorce de pliage

Abstract

<P>L'invention propose un ensemble (10) de structure de caisse de véhicule automobile, comportant une partie (12) de structure de caisse formant compartiment moteur agencée en avant d'une cellule (14) ou habitacle du véhicule, du type dans lequel la partie (12) de structure de caisse comporte au moins deux longerons (16) sensiblement longitudinaux qui sont susceptibles de s'écraser longitudinalement partiellement, en cas de choc longitudinal, et du type comportant deux cloches (28) porteuses d'éléments de suspension du véhicule dont chacune est accolée transversalement à un longeron (16), caractérisé en ce que chaque longeron (16) comporte une zone (32) d'amorce de pliage agencée longitudinalement en avant de la cloche (28) qui permet, en cas de choc (F) longitudinal, qu'une partie avant (34) du longeron (16) se plie autour de la zone (32) d'amorce en laissant une partie arrière (36) du longeron et la cloche (28) sensiblement intactes.</P>
The frame member (10) for a motor vehicle extends foreword from the passenger cell to absorb impact in case of collision. It has a notched section (32) formed between its ends to allow controlled deformation in a mainly longitudinal direction. The notch is formed in front of a respective suspensions casing (28) formed in the body shell to allow the member to deform while leaving the rear part of the member and the casing intact.

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Patent Citations (3)

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