BUMPER REINFORCEMENT AND BUMPER DEVICE FOR VEHICLE

PROBLEM TO BE SOLVED: To provide a bumper reinforcement and a bumper device for a vehicle, which are excellent in versatility for design of a vehicle while preventing an increase in the number of parts and can secure sufficient flexural rigidity.SOLUTION: The bumper reinforcement 16 is made from an extruding material containing an aluminum alloy and extends in a vehicle width direction. The bumper reinforcement 16 integrally includes a body wall part 21 extending in a vertical direction in a cross sectional shape; an upper wall part 22 and a lower wall part 23 protruding from an upper end and a lower end the main wall part 21 to the rear of the vehicle respectively; and a flange 24 protruding from rear ends of the rear of the vehicle of the upper wall part 22 and the rear end of the vehicle of the lower wall part 23 in the vertical direction where the rear ends oppose to each other. Gradually narrowing parts 22b, 23b in which respective protruding lengths to the rear of the vehicle gradually decreases toward the front end in the vehicle width direction are formed respectively on the end of the upper wall part 22 in the vehicle width direction and the lower wall part 23.