| 摘要 |
PROBLEM TO BE SOLVED: To provide a bumper beam that acquires sufficient energy absorption performance when a collision load in an oblique direction is inputted to an end part in a vehicle width direction.SOLUTION: A bumper beam 12 made of fiber-reinforced resin to be arranged along a vehicle width direction comprises a bumper beam main body 13 including a continuous fiber-reinforced resin layer having glass continuous fibers oriented in the vehicle width direction and in a direction orthogonal to the vehicle width direction and coupled with thermoplastic resin. On outer faces in a longitudinal direction of both end parts in the width direction of the main body 13 is provided an impact absorption portion 31 constituted of a honeycomb cell 31a having a shaft line extending in the longitudinal direction and a first reinforcement rib 31b supported from inside in the vehicle width direction. When a collision load F' in an oblique direction is inputted to an outer end part in the vehicle width direction of the bumper beam 12, the honeycomb cell 31a which receives the collision load first can be broken by pressure so as to absorb collision energy, and further so as to inhibit falling of the first reinforcement rib 31b toward inside in the vehicle width direction, which can accelerate the honeycomb cell 31a to be broken by pressure in the longitudinal direction so as to enhance collision energy absorption effect.SELECTED DRAWING: Figure 3 |
