Sacrificial composite part that absorbs energy during a vehicle collision
AssigneeHutchinson
InventorGuy Valembois
Life of this patent
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Abstract
The invention relates to a sacrificial composite part (1, 10, 100) that absorbs the energy released at the time of a vehicle collision with an impacting object (2), said part consisting of an assembly of a plurality of cells (3, 30, 300), each cell comprising a wall (5, 50, 500) connecting a first end (6, 60, 600) and a second end (7, 70, 700) of said cell, the direction of penetration (8) of the impacting object into said part going from said first end to said second end. Said sacrificial composite part of the invention is characterized in that that peripheral wall of each cell has a decreasing thickness (e) from said first end towards said second end of said cell, in the direction of penetration of the impacting object.
Claims6
A sacrificial composite part that absorbs the energy released when a vehicle collides with an impacting object, said part consisting of an assembly of a plurality of cells having a circular cross-section, each cell comprising a peripheral wall connecting a first end and a second end of said cell, the direction of penetration of the impacting object into said part extending from said first end towards said second end, said part being characterized in that the peripheral wall of each cell has a thickness decreasing from said first end towards said second end of said cell, in the direction of penetration of the impacting object, wherein each cell is connected to at least one adjacent cell by a connecting element in the form of a partition, the thickness of which decreasing in the direction of penetration of the impacting object.
Dependencies are inferred from the claim text.