To achieve high durability of a welded part with a lightweight and simple structure.SOLUTION: A front side frame 5 includes: a front side member 51 arranged on both sides of a vehicle front part in the vehicle width direction and extending in the vehicle longitudinal direction; an extension 52 welded to a front end of the front side member 51 and extending to the vehicle front. A welded part 54 of the front side member 51 to the extension 52 includes: a first welded part 54a extending along the vehicle width direction from the outside in the vehicle width direction toward the inside in the vehicle width direction in vehicle plan view; and a second welded part 54b extending diagonally from an inner end part of the first welded part 54a in the vehicle width direction toward backward of a vehicle and the inside thereof in the vehicle width direction in vehicle plan view.SELECTED DRAWING: Figure 5
【課題】軽量かつ簡便な構造で溶接部の耐久性を向上させる。【解決手段】車両前部の車両幅方向両側に配置され、車両前後方向に延びるフロントサイドメンバ51と、フロントサイドメンバ51の前端に溶接されて車両前方に延びるエクステンション52と、を含むフロントサイドフレーム5であって、フロントサイドメンバ51とエクステンション52との溶接部54は、車両平面視で車両幅方向外側から車両幅方向内側に向かって車両幅方向に沿って延びる第一溶接部54aと、車両平面視で第一溶接部54aの車両幅方向内側の端部から車両後方かつ車両幅方向内側に向かって斜めに延びる第二溶接部54bと、を含む。【選択図】図5
VEHICULAR FRONT SIDE FRAME
車両のフロントサイドフレーム
2020-02-27
Patent
Electronic Resource
Japanese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |