Patent ID: 7097185
Filing Date: 2006-08-29
Classification: B62D

Abstract:
1. A suspension cross member adapted to be attached to an underside of a vehicle body in such a manner as to extend in a transverse direction of a vehicle, comprising: upper and lower member plates disconnected from each other in a vicinity of bifurcation proximal end portions at ends of the suspension cross member where the suspension cross member extends to be bifurcated into a forward portion located on a longitudinally forward side of the suspension cross member and a rearward portion located on a longitudinally rearward side of the suspension cross member to define openings and which are joined together along circumferential edges thereof to thereby have a closed cross section; support points for forward arms of a pair of lower arms that support wheels, the support points disposed on the forward portions of the upper and lower member plates at external positions to the closed cross section, respectively; support points for rearward arms of the pair of lower arms which are inserted through the openings, the support points disposed on the rear portions at internal positions of the closed cross section, respectively; and bulkheads provided between the upper and the lower member plates transversely and inwardly of the support points for the rearward arms in such a manner that a circumferential edge of each of the bulkheads extends longitudinally to a rear of the vehicle from a disconnection initiating point located on a forward arm side of the opening along inner sides of the upper and the lower plate members and each of the bulkheads being welded to the upper and lower plate members.