ENERGY ABSORBER WITH DIFFERENTIATING ANGLED WALLS

WIPO Patent Application WO/2010/048390

A3

A vehicle includes a beam and fascia over the beam, and an energy absorber mounted between the beam and fascia. The energy absorber is thermoplastic and has energy-absorbing wall geometries that are forwardly facing and configured to absorb energy from a low speed impact against a pedestrian. The wall geometries having multiple wall sections defining multiple draft angles and lengths adapted to buckle at transitions of the multiple draft angles during the low speed impact, with the numbers and types of draft angles and transitions of these draft angles being varied to provide a selected amount of resistance force needed to absorb an optimal amount of energy over time during the impact. The energy absorber is tuned for optimal minimized injury to an impacted object.

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BROOKS RYAN J (US)
FENCHAK PATRICK (US)
RALSTON DANIEL D (US)

PCT/US2009/061663

July 29, 2010

October 22, 2009

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SAFETYNET ENERGY MAN LLC (US)
BROOKS RYAN J (US)
FENCHAK PATRICK (US)
RALSTON DANIEL D (US)

B60R19/34; B60R19/02; B60R19/18

WO2004018261A1

2004-03-04

US20050057053A1	2005-03-17
US20080185851A1	2008-08-07

DOLCE, Marcus P. (Heneveld Cooper, DeWitt & Litton, LLP,695 Kenmoor, S.E.,P.O. Box 256, Grand Rapids Michigan, US)

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