Fences – Highway guard
Patent
1980-09-05
1982-10-05
Kee Chi, James
Fences
Highway guard
256 1, 523094, 104254, 114219, 188377, 293133, 404 6, E01F 1500
Patent
active
043524842
ABSTRACT:
An energy absorbing apparatus is provided to dissipate the energy of the impact force of a vehicle. A plurality of energy absorbing sheets are arranged in a stacked relation to resist the impact force and to thereby dissipate the energy of the force. Each sheet has a honeycomb structure of hexagonal cells that are filled with a deformable material such as polyurethane foam and that are defined by walls of relatively rigid material. In operation, an impact force is applied to the stack of energy absorbing sheets and each sheet is thereby caused to cut or shear into its abutting sheet so that at least a portion of the energy of the impact force is dissipated. As the stacked sheets cut into one another, the energy of the force is further dissipated by the compression of the polyurethane foam of the sheets.
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Guard Rail Energy Absorbing Terminal and Crash Cushion.
Denman Owen S.
Gertz David C.
Chi James Kee
Energy Absorption Systems, Inc.
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