FRAME STRUCTURE OF LOW FLOOR VEHICLE

PROBLEM TO BE SOLVED: To provide a frame structure of a low floor vehicle, capable of firmly connecting a rear frame with different breadth and height to a front frame with high rigidity.SOLUTION: A frame structure of a low floor vehicle is configured by coupling a relatively wide rear frame 2 with a front frame 1 while lowering a height thereof more than the front frame 1. In the frame structure, a rear end of each side member 1a of the front frame 1 is coupled with a front end of each side member 2a of the rear frame 2 via a gusset 3 of a box structure. Also, the rear ends of each side member 1a of the front frame 1 are coupled with each other by a rear cross member 12, and the front ends of each side member 2a of the rear frame 2 are coupled with each other by a front cross member 13.