| 摘要 |
A rigidity strengthening tubular beam for an automotive suspension device is provided to enhance durability in both lateral ends wherein external forces are concentrated. A rigidity strengthening tubular beam for an automotive suspension device comprises a body opened cross section unit(3) whereon a rolled plate-shaped member is put, a trailing arm(1) which comprises a suspension, and left and right end body cross section units(4,5) which are welded in the trailing arm. In the center of the body opened cross section unit, an opened space is formed in the longitudinal direction thereof. Hollows are formed in both lateral ends of the body opened cross section unit. |
