초록 ▼

A composite fiber reinforced plastic (FRP) bumper includes an energy absorbing outer shell which is spaced from a rigid inner beam. The outer shell deforms under low impact loads and serves as an energy absorber. Upon high impact loads, the shell abuts the inner beam which, in turn, transfers the lo

A composite fiber reinforced plastic (FRP) bumper includes an energy absorbing outer shell which is spaced from a rigid inner beam. The outer shell deforms under low impact loads and serves as an energy absorber. Upon high impact loads, the shell abuts the inner beam which, in turn, transfers the loads to the vehicle frame.

대표청구항 ▼

[ I claim:] [1.] A bumper for a vehicle, said bumper comprising:a first fiber reinforced preform defining an outer shell having a wall, said first preform having flexible fibers dispersed therein;at least one second fiber reinforced preform defining inner beam, said second prefrom having rigid fiber

[ I claim:] [1.] A bumper for a vehicle, said bumper comprising:a first fiber reinforced preform defining an outer shell having a wall, said first preform having flexible fibers dispersed therein;at least one second fiber reinforced preform defining inner beam, said second prefrom having rigid fibers dispersed therein;said first and second preforms being impregnated with the same resin system; andsaid shell deforming and returning to its original state upon impact, while the inner beam is spaced from the wall of the shell and transmits high impact loads to the vehicle frame when the impact load is large enough to deform the shell until it abuts the inner beam.