The invention relates to an edge beam for the floor of a vehicle adopting staggered overlap
welding. The edge beam is formed by
welding two sections, the two sections of edge beam mutually form X-shaped overlapping edges at the welded ended, and the two overlapping edges are welded together in a mutually staggered manner. By adopting the structural design, in the
head on collision process of the vehicle, if the
impact energy is strong, behind the
welding spot of the overlapping edges of the edge beam, the staggered overlapping of the edge beam continues exerting the functions of transmitting and dispersing the energy, so as to improve the
impact resistance and better guarantee the safety space of the passenger compartment. At the same time, through the X-shaped staggered overlapping of the edge beam, the bending rigidity and the
torsional rigidity of the vehicle body can be enhanced, and the driving comfort can be ensured. The staggered overlapping structure does not need to adopt special techniques and technologies and increase the working procedure or material thickness, the shaping is simple, the structure is easy to realize, and is favorable for the
assembly of the front floor and the rear floor.