FIELD: construction.
SUBSTANCE: front floor panel 110 for a car body includes tunnel 104a in the floor, which is formed in the centre throughout the car width and oriented in longitudinal direction, vertical flanges 104b located on the left and on the right, formed for connection to side thresholds 105 on left and right end sections in car width direction, and left and right flat sections104c formed between vertical flanges 104b located on the left and on the right and left and right longitudinal sections of tunnel 104a walls in the floor. In loop-shaped areas including external edge portions of flat sections 104c there created are convex-concave parts 111 of a specific shape, and the rest areas, except for loop-shaped areas, are formed with a sheet of a flat shape.
EFFECT: providing a possibility of forming without any extremely high force with desired stiffness and noise and vibration characteristics in all directions due to low stiffness anisotropy.
15 cl, 19 dwg
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