초록 ▼

Disclosed is a bumper beam formed of a plurality of elongate sections. The sections are formed of composite material comprising both longitudinal fibers and random fibers embedded within a resin matrix. The longitudinal fibers extend continuously between the opposing ends of the bumper beam with the

Disclosed is a bumper beam formed of a plurality of elongate sections. The sections are formed of composite material comprising both longitudinal fibers and random fibers embedded within a resin matrix. The longitudinal fibers extend continuously between the opposing ends of the bumper beam with their longitudinal axes being substantially parallel to the longitudinal axis of the beam. The random fibers have their longitudinal axes randomly oriented with respect to the longitudinal axis of the beam. The longitudinal fibers comprise 70-85% of the total weight of the longitudinal and random fibers. The cross-sectional shapes of the sections are such that when subjected to the stresses induced by a collision, the outermost sections will tend to deflect in the lateral direction.

대표청구항 ▼

An elongate bumper beam having a front surface facing a direction of expected impact, said beam comprising a center section, a top section, and a bottom section joined in laterlly abutting relation, the center, top and bottom sections having walls formed of composite material, a portion of a wall of

An elongate bumper beam having a front surface facing a direction of expected impact, said beam comprising a center section, a top section, and a bottom section joined in laterlly abutting relation, the center, top and bottom sections having walls formed of composite material, a portion of a wall of the center section being integrally formed with an adjacent portion of a wall of the top section, and a portion of a wall of the center section being integrally formed with an adjacent portion of a wall of the bottom section, the walls of each section defining an enclosed space within that section.