| 摘要 |
PURPOSE: A tubular back beam for a vehicle is provided to obtain excellent collision ability by efficiently corresponding to the collision of all situations such as front collision or offset collision. CONSTITUTION: A tubular back beam for a vehicle comprises an upper beam(51), a lower beam(52), a plurality of connecting legs(53), a center bracket(54), and a pair of side brackets(55). The connecting legs are arranged along the longitudinal direction of the upper and lower beams and is combined to connect the upper beam and the lower beam. The center bracket connects a central part in a longitudinal direction of the upper and lower beams. The side brackets are installed to connect both ends of the upper beam and the lower beam.
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