Vehicle door structure with improved energy absorption character

Details Vehicle door structure with improved energy absorption character Vehicle door structure with improved energy absorption character

1989-10-16

1991-06-25

Focarino, Margaret A.

Land vehicles: bodies and tops

Bodies

Door or window with specified vehicle feature

B60R 2700

Patent

active

050261118

ABSTRACT:
A hollow beam is disclosed for a vehicle door assembly which is configured to collapse upon a transverse impact to absorb impact energy, thus reducing the impact forces experienced by a vehicle occupant during a collison. The energy absorbing beam is configured as a parallelogram in cross-section so as to enable the beam to act as a four-bar linkage during collapse. The energy absorbing beam is preferably disposed in the door assembly at the vehicle beltline which is often impacted by the occupant's head or torso during a vehicle collision. Various features can be added to the provide localized stiffening of the beam as necessary depending upon the particular beam application.

REFERENCES:
patent: 3718364 (1973-02-01), Fischer et al.
patent: 3829149 (1974-08-01), Stevens
patent: 3868796 (1975-03-01), Bush
patent: 4651470 (1987-03-01), Imura et al.
patent: 4838606 (1989-06-01), Furubayashi et al.
patent: 4901500 (1990-02-01), Wycech
patent: 4919473 (1990-04-01), Laimighofer et al.

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