| 摘要 |
<p>A B-shaped tubular reinforcement beam for vehicle bumper systems has a constant B section and longitudinal sweep. The tubular beam has a vertical cross section defining at least first and second tubes connected by a center web, and a front wall that extends across the tubes and the center web to define a channel. The channel has a depth dimension (D1) to the center web of about 15-30 mm, and preferably about 20 mm depth. The first and second tubes on their channel-side portion each include a section of wall defining a radius (R1) that is between about 15-30 mm, and preferably 25 mm.</p> |
