US Patent 9540049 Floor support structure of vehicle

A floor support structure of a vehicle comprises a floor extending in the vehicle width direction so as to allow occupants sitting side by side in the vehicle width direction to put their feet thereon. The floor includes a plane surface part and separating a vehicle interior from a vehicle exterior, a body for supporting each of front and rear end portions of the floor in the forward and rearward direction of the vehicle and each of left and right end portions of the floor in the vehicle width direction, and a floor stay making contact with a lower surface in or around the middle in the vehicle width direction of the floor so as to support the floor. The floor stay comprises a plurality of main stays and a sub-stay.