SUB FRAME OF VEHICLE

摘要

PURPOSE: A sub frame for a vehicle is provided to reduce a producing cost by decreasing weight while improving rigidity and to improve after service by removing a member crossing an engine room. CONSTITUTION: A sub frame of a vehicle comprises a cross member(100) mounting an engine mount and a steering gear box; a rear extension unit(210) extended toward a rear portion of a chassis from both end portions of the cross member; a first combining unit(211) formed on the rear extension unit by being attached to a side member of the chassis; a first mounting unit(221) installed on a front extension unit(220); a suspension lower arm mounted on the first mounting unit; a second mounting unit(230) having a suspension lower arm of the rear extension unit; a wing unit(200) formed on both sides of the cross member; an installing unit(300) having a second combining unit(310); and a groove(110) formed on an upper portion of the cross member by having a cylinder shape. Thereby, the sub frame of the vehicle reduces a producing cost by decreasing weight of the vehicle while improving rigidity.