COMPOSITE ENERGY ABSORBER - OAKWOOD ENERGY MAN INC

Title:

COMPOSITE ENERGY ABSORBER

Document Type and Number:

WIPO Patent Application WO2002102460

Kind Code:

A3

Abstract:

A composite modular energy absorbing assembly with one or more gamma structures 100 that are interposed with one or more delta structures 200. The gamma structures have a base 12' and a plurality of recesses 16' defined therewithin. The recesses 16' have at least one wal120' extending from the associated base 12'. At least some of the recesses 16' are oriented such that their walls are substantially parallel to a major incident component of an impacting force. The walls 20' collapse. The delta structures 200 have a lattice 210 of interconnected strands which intersect to define a plurality of cells 220. The plane of at least some of these cells are substantially parallel to the impacting force. The lattice collapses during energy absorption. The composite assembly serves to decelerate an object that impacts thereupon in order to maximize energy absorption over a given distance. In alternate embodiments, stacking arrangements include: gamma structures alone; or delta structures alone.

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Inventors:

CARROLL PHILLIP PATRICK III
CORMIER JOEL MATTHEW
SMITH DONALD SCOTT
AUDI RICHARD FRANCOIS

Application Number:

PCT/US2002/019527

Publication Date:

October 16, 2003

Filing Date:

June 19, 2002

Export Citation:

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Assignee:

OAKWOOD ENERGY MAN INC (US)

International Classes:

B62D25/04; A62B1/22; B32B3/28; B60K37/00; B60N2/42; B60N2/70; B60R19/18; B60R21/04; B62D25/06; B65D81/127; F16F1/376; F16F7/00; F16F7/12; B60R19/34; B60R21/02; B60R21/045; (IPC1-7): B60R21/04; B32B1/00

Foreign References:

US3231454A	1966-01-25
US4631221A	1986-12-23
US5731062A	1998-03-24
US5518802A	1996-05-21
US3782767A	1974-01-01
US5500037A	1996-03-19

Other References: