Energy absorbing door panel

Details Energy absorbing door panel Energy absorbing door panel

1997-08-25

1999-08-10

Pape, Joseph D.

Land vehicles: bodies and tops

Bodies

Lining

2961467, 280751, B60R 1301

Patent

active

059347309

ABSTRACT:
A car trim including a plurality of ribs formed integrally and arranged vertically at a predetermined interval on a predetermined site of the rear face 1a of trim main body 1 for absorbing energy of collision, each rib being formed in a rectangular tube, each rib side wall 4a being tapared with thinning toward its distal end, and a rigidity changing portion P being disposed by integrally forming an auxiliary rib piece 5 on the rib side wall 4a for introducing buckling transformation of the rib 4 at a predetemined position in the rib side wall 4a. The rib also includes a first energy absorbing portion 5 and a second energy absorbing portion 6 formed in such a multi-stepped manner that the number of rib walls in the former step is different from that number in the latter step. Further, the rib also includes a first auxiliary rib piece 5 extending outside from each corner along one side wall 3, 4 of the rib and a second auxiliary rib piece 6 extending from the distal end of the first auxiliary rib piece 5 onto the other side wall 4, 3 vertically intersecting that first auxiliary rib piece.

REFERENCES:
patent: 3503600 (1970-03-01), Rich
patent: 3989275 (1976-11-01), Finch et al.
patent: 4890877 (1990-01-01), Ahstiani-Zarandi et al.
patent: 5040335 (1991-08-01), Grimes
patent: 5098124 (1992-03-01), Breed et al.
patent: 5131709 (1992-07-01), Spica
patent: 5141279 (1992-08-01), Weller
patent: 5154445 (1992-10-01), Weller
patent: 5306066 (1994-04-01), Saathoff
patent: 5433478 (1995-07-01), Naruse
patent: 5573272 (1996-11-01), Teshima

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