| 摘要 |
PROBLEM TO BE SOLVED: To provide a suspension cross member configured such that an upper member plate and a lower plate member are integrally constituted so as to be connected to each other on a peripheral edge so that they are separated and opened in the neighborhood of branched base ends of both ends forked, and extended, each of the plates forms a closed cross-section except for the opened part, and a supporting point of a rear side arm of a lower arm inserted from the opening is positioned inside the closed cross-section on the rear side in the longitudinal direction of a vehicle from the branched base end, and the cross member is prevented from peeling off at a separation starting point of the opening. SOLUTION: A bulkhead (40) extending to the rear side in the vehicle longitudinal direction along the inner surface of an upper member plate and the inner surface of a lower member plate from the separation starting point G on the side of the front side arm of the opening (27) is interposed between the upper member plate (22) and the lower member plate (23), and the bulkhead is respectively connected to the upper member plate and the lower member plate at least in the neighborhood of the separation starting point G. COPYRIGHT: (C)2004,JPO&NCIPI
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