STRUCTURE OF LOWER CAR BODY FOR CAB OVER TYPE CAR

摘要

PURPOSE:To obtain the all-spot welding without using a big-sized welder by dividing a floor panel into a front, a center, and a rear panel for welding extensions of frame members provided on the front and the rear panel with each other. CONSTITUTION:This structure of a lower car body is provided with a floor panel consisting of a front, a center, and rear panel 2, 4, and 6. The front panel 2 consists of a front low part 10 for putting crew's feet and a rear high part 12 for setting a seat, and the rear high part 12 is provided with service holes 14 and 16 respectively for an engine, a battery, and the like. At this stage, a pair of left and right front frame members 30 with U-shaped sections are provided along the longitudinal direction of the car body under the front panel 2. Meanwhile, rear frame members 50 is slimiarly provided under the rear panel 6, and welded with the above-said frame members 30 on their extensions 54 and 34. Then, the center panel 4 is spot-welded on the extension 54 for finishing the assembly.