Controlled collapsible frame rail

Details Controlled collapsible frame rail Controlled collapsible frame rail

1986-03-21

1987-08-04

Love, John J.

Land vehicles

Wheeled

Running gear

296189, B62D 2100

Patent

active

046841512

ABSTRACT:
A vehicle frame rail includes a base wall and side walls of generally U-shape configuration, with such walls being provided with interconnected depressions controlling collapse of the rail in a predetermined sequence and direction. The depressions adjacent the impacted end of the rail are of greater depth than the depressions remote from the impacted end, with the depressions in the side walls extending oppositely with respect to the same surface of the rail as the depressions in the base wall. The rail further includes a longitudinal bead to attenuate higher level impact loads. The side walls include darts which collapse to proscribe the direction of collapse of the rail and prevent random folding or buckling of the rail upon itself when the bead collapses.

REFERENCES:
patent: 3547463 (1970-12-01), Eggert, Jr.
patent: 3794348 (1974-02-01), Fischer
patent: 3811698 (1974-05-01), Glronce
patent: 3831997 (1974-08-01), Myers
patent: 3848886 (1974-11-01), Feustel et al.
patent: 3912295 (1975-10-01), Eggert, Jr.
patent: 4431221 (1984-02-01), Jahnle

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