F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
F16F 7/12 (2006.01) B60R 19/18 (2006.01) B62D 1/19 (2006.01) B62D 21/15 (2006.01)
Patent
CA 2285581
The invention concerns a deformation element for the controlled dissipation of energy with an inelastically deformable hollow part having at least one prefabricated depression (12) which acts as a predetermined buckling point when an impact having a force component in a direction perpendicular to the depression (12) is applied. The invention also concerns a method of producing this deformation element by: introducing or partially introducing into a mould a pipe which has optionally already been bent; applying internal high pressure; removing the reshaped part and optionally subjecting it to mechanical further or after-treatment, for example by laser or by honing. The invention further concerns the use of these deformation elements as lateral reinforcement pipes for vehicles, deformation elements between vehicle bumpers and side members, steering column elements, and supports.
L'invention concerne un élément de déformation pour la dissipation contrôlée d'énergie comportant une partie creuse déformable non élastique avec au moins un évidement préfabriqué (12) agissant comme point de fléchissement exigé lors d'impacts avec une composante de force perpendiculaire à l'évidement (12). L'invention concerne également un procédé de fabrication de cet élément par introduction totale ou partielle d'un tube - éventuellement préalablement plié - dans un moule, application d'une haute pression interne, extraction de la pièce déformée et, éventuellement, transformation ou posttraitement mécanique, par exemple par laser ou par rodage. Ces éléments de déformation sont utilisés comme tubes de renforcement latéral pour véhicules, éléments de déformation entre les pare-chocs et les longerons de véhicules, éléments de colonnes de direction et supports.
Klaas Friedrich
Stutzel Peter
Imai Jeffrey T.
Magna Ihv Gesellschaft Fur Innenhochdruckverfahren Mbh
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