Impact energy absorber and fabrication method thereof

Details Impact energy absorber and fabrication method thereof Impact energy absorber and fabrication method thereof

2011-04-05

2011-04-05

Pedder, Dennis H (Department: 3612)

Land vehicles: bodies and tops

Bodies

Structural detail

C293S133000, C293S155000, C188S371000

Reexamination Certificate

active

07918493

ABSTRACT:
A main body of an impact energy absorber is formed by integrally molding a deformable portion and a plurality of deformation controlling portions which are adapted to control the direction of plastic deformation of the deformable portion. The deformation controlling portions have such a configuration and shape that, when a compression load equal to or greater than a predetermined value is input to the main body in a tube axis direction, the deformable portion undergoes plastic deformation in at least one of a radially outward direction and a radially inward direction of the main body concurrently with the compressive plastic deformation in the tube axis direction.

REFERENCES:
patent: 3181821 (1965-05-01), Webb
patent: 3308908 (1967-03-01), Bunn
patent: 3724833 (1973-04-01), Sergay
patent: 2007/0251782 (2007-11-01), Chen et al.

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