System for securing fixtures to a vehicle floor comprising panels with perforated lateral walls

A floor comprising:

• at least two parallelepipedal panels comprising a front wall, a rear wall, a top wall, a bottom wall and two lateral walls, and
• a securing device comprising
• two C-profiles formed, respectively, by a web, a bottom flange, and a top flange, the webs being perforated and having orifices, and
• an omega-shape fishplate, formed by a cap provided with feet,
• wherein the webs are joined by the omega-shape fishplate and are positioned on either side of the cap, the two C-profiles lying in opposition back-to-back, the bottom flanges and top flanges of the two C-profiles projecting away from the web, and
• at least one edge of the front, rear or lateral walls being covered by one of the two C-profiles, the panels being assembled in pairs by securing devices, the bottom flanges ensuring securing with the feet, the fishplate holding the two C-profiles and thus the panels at a distance, and wherein the panel comprises cavities opposite the orifices of the webs.