Dual-material energy-absorption device with low thermal sensitivity, front end and motor vehicle incorporating such a device
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United States of America Patent
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May 24, 2016
Grant Date -
Feb 13, 2014
app pub date -
Nov 22, 2011
filing date -
Nov 22, 2010
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Abstract
The energy-absorption device (5) for a motor vehicle that comprises: a first energy-absorption member (50), in a first plastic material, provided so as to perfectly deform under the effect of an impact of given energy by absorbing a first portion of the energy of said impact; a second energy-absorption member (52), in a second plastic material different from the first plastic material, provided so as to plastically deform under the effect of said impact of given energy by absorbing a second portion of the energy of said impact; the first and second energy-absorption members (50, 52) being conformed so that the energy-absorption device (5) has a total intrusion-resisting force comprised between 75 and 200 kN, at any temperature comprised between −30° C. and 80° C.
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