| 摘要 |
<p>PROBLEM TO BE SOLVED: To increase the mechanical strength of a cross member for twist-beam suspension.SOLUTION: A cross-member 12 comprises a single piece of steel having a closed cross-section integrally forming an arched middle portion 12a, a pair of straight end portions 12b, and a pair of arched joining portions 12c, each of which is interposed between the middle portion 12a and the respective end portions 12b and has a concavity facing toward the opposite side with respect to the middle portion 12a. The middle portion 12a is squashed so as to have a middle cross-section of such a shape as to provide the cross-member with the desired inertial characteristics.</p> |
